/* roulang page: index */
:root {
            --coal: #0C0F12;
            --coal-light: #161B1F;
            --acid: #C6FF3D;
            --acid-dim: rgba(198, 255, 61, 0.15);
            --orange: #FF5C1A;
            --soft-bg: #F4F6F3;
            --dark-text: #F7F7F0;
            --dark-muted: #9CA3A8;
            --light-text: #1A1D20;
            --light-muted: #6E7479;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.35);
            --border-light: 1px solid rgba(0, 0, 0, 0.06);
            --border-dark: 1px solid rgba(198, 255, 61, 0.15);
            --font-chinese: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-display: 'Bebas Neue', 'Oswald', 'Noto Sans SC', sans-serif;
            --transition: all 0.25s ease;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-chinese);
            font-size: 16px;
            line-height: 1.7;
            color: var(--light-text);
            background: var(--soft-bg);
            overflow-x: hidden;
        }

        body.dark-section {
            background: var(--coal);
            color: var(--dark-text);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--acid);
            outline-offset: 2px;
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding: 88px 0;
        }
        .section-pad-sm {
            padding: 64px 0;
        }
        .section-pad-xs {
            padding: 48px 0;
        }

        .dark-bg {
            background: var(--coal);
            color: var(--dark-text);
        }
        .light-bg {
            background: var(--soft-bg);
            color: var(--light-text);
        }

        .text-muted-on-dark {
            color: var(--dark-muted);
        }
        .text-muted-on-light {
            color: var(--light-muted);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--orange);
            margin-bottom: 12px;
        }
        .section-label.acid {
            color: var(--acid);
        }

        .section-title {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 0;
        }

        /* ============ 导航杂志刊头 ============ */
        .masthead {
            background: var(--coal);
            color: var(--dark-text);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 2px solid var(--acid);
            transition: var(--transition);
        }
        .masthead-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 0;
            flex-wrap: wrap;
            gap: 16px;
        }
        .masthead-brand {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .masthead-brand a {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--dark-text);
            line-height: 1;
            text-transform: uppercase;
            position: relative;
        }
        .masthead-brand a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 0;
            height: 3px;
            background: var(--acid);
            transition: width 0.3s ease;
        }
        .masthead-brand a:hover::after {
            width: 100%;
        }
        .masthead-divider {
            width: 2px;
            height: 28px;
            background: rgba(198, 255, 61, 0.55);
            flex-shrink: 0;
        }
        .masthead-nav {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.04em;
        }
        .masthead-nav a {
            color: var(--dark-muted);
            position: relative;
            padding: 4px 0;
            transition: var(--transition);
            white-space: nowrap;
        }
        .masthead-nav a:hover,
        .masthead-nav a.active {
            color: var(--acid);
        }
        .masthead-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -3px;
            width: 0;
            height: 2px;
            background: var(--acid);
            transition: width 0.3s ease;
        }
        .masthead-nav a:hover::after,
        .masthead-nav a.active::after {
            width: 100%;
        }
        .hamburger-btn {
            display: none;
            background: transparent;
            border: none;
            color: var(--dark-text);
            font-size: 26px;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .hamburger-btn:hover {
            background: var(--acid-dim);
            color: var(--acid);
        }

        /* ============ Hero ============ */
        .hero {
            background: var(--coal);
            color: var(--dark-text);
            position: relative;
            overflow: hidden;
            min-height: 650px;
            display: flex;
            align-items: center;
            padding: 80px 0 100px;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 1;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(12, 15, 18, 0.55) 0%, rgba(12, 15, 18, 0.92) 100%);
            z-index: 2;
        }
        .hero-watermark {
            position: absolute;
            font-family: var(--font-display);
            font-size: 200px;
            font-weight: 700;
            color: rgba(198, 255, 61, 0.06);
            letter-spacing: 0.1em;
            right: -20px;
            bottom: -40px;
            z-index: 2;
            user-select: none;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            max-width: 680px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--acid);
            color: var(--coal);
            font-size: 13px;
            font-weight: 700;
            padding: 8px 18px;
            border-radius: 50px;
            letter-spacing: 0.08em;
            margin-bottom: 24px;
        }
        .hero h1 {
            font-size: clamp(34px, 6vw, 58px);
            font-weight: 900;
            line-height: 1.12;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        .hero h1 .highlight {
            color: var(--acid);
            position: relative;
        }
        .hero-sub {
            font-size: 17px;
            line-height: 1.85;
            color: var(--dark-muted);
            margin-bottom: 36px;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }
        .hero-data-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 44px;
            padding-top: 28px;
            border-top: 1px solid rgba(198, 255, 61, 0.22);
        }
        .hero-data-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .hero-data-item .num {
            font-size: 28px;
            font-weight: 800;
            color: var(--acid);
            font-family: var(--font-display);
            letter-spacing: 0.04em;
            line-height: 1;
        }
        .hero-data-item .lbl {
            font-size: 13px;
            color: var(--dark-muted);
            letter-spacing: 0.06em;
        }

        /* ============ 按钮 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 700;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: 6px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.04em;
            min-height: 44px;
            line-height: 1;
            text-align: center;
        }
        .btn-primary {
            background: var(--orange);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 92, 26, 0.3);
        }
        .btn-primary:hover {
            background: #e84e0f;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 92, 26, 0.4);
        }
        .btn-acid {
            background: var(--acid);
            color: var(--coal);
            box-shadow: 0 4px 16px rgba(198, 255, 61, 0.25);
        }
        .btn-acid:hover {
            background: #b4eb2e;
            color: var(--coal);
            transform: translateY(-2px);
        }
        .btn-outline-dark {
            background: transparent;
            color: var(--dark-text);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        .btn-outline-dark:hover {
            background: var(--acid);
            color: var(--coal);
            border-color: var(--acid);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--light-text);
            border: 1px solid rgba(0, 0, 0, 0.2);
        }
        .btn-outline-light:hover {
            background: var(--orange);
            color: #fff;
            border-color: var(--orange);
        }
        .btn-sm {
            padding: 10px 20px;
            font-size: 13px;
            min-height: 38px;
        }
        .btn-block {
            display: flex;
            width: 100%;
        }

        /* ============ 痛点区 ============ */
        .pain-zone {
            background: var(--soft-bg);
            color: var(--light-text);
        }
        .pain-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 32px;
            margin-top: 40px;
        }
        .pain-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            border: var(--border-light);
            box-shadow: var(--shadow-light);
            transition: var(--transition);
        }
        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
        }
        .pain-card .num-badge {
            display: inline-block;
            font-family: var(--font-display);
            font-size: 42px;
            font-weight: 700;
            color: var(--orange);
            line-height: 1;
            margin-bottom: 12px;
        }
        .pain-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--light-text);
        }
        .pain-card p {
            font-size: 15px;
            color: var(--light-muted);
            line-height: 1.75;
        }
        .pain-progress {
            background: var(--coal);
            color: var(--dark-text);
            border-radius: var(--radius-lg);
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 20px;
            box-shadow: var(--shadow-dark);
        }
        .pain-progress .progress-item {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .pain-progress .progress-track {
            flex: 1;
            height: 8px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 50px;
            overflow: hidden;
        }
        .pain-progress .progress-fill {
            height: 100%;
            background: var(--acid);
            border-radius: 50px;
            width: 0%;
            transition: width 1.2s ease;
        }
        .pain-progress .p-label {
            font-size: 13px;
            color: var(--dark-muted);
            font-weight: 600;
            white-space: nowrap;
            min-width: 80px;
        }
        .pain-progress .p-val {
            font-size: 14px;
            font-weight: 700;
            color: var(--acid);
            font-family: var(--font-display);
            letter-spacing: 0.06em;
            min-width: 50px;
            text-align: right;
        }

        /* ============ 解决方案 ============ */
        .solution-zone {
            background: #fff;
            color: var(--light-text);
        }
        .solution-steps {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            margin-top: 48px;
        }
        .solution-step {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 24px;
            border-radius: var(--radius-md);
            border: var(--border-light);
            transition: var(--transition);
        }
        .solution-step:hover {
            border-color: var(--acid);
            background: rgba(198, 255, 61, 0.05);
        }
        .solution-step .step-num {
            font-family: var(--font-display);
            font-size: 38px;
            font-weight: 700;
            color: var(--orange);
            line-height: 1;
            flex-shrink: 0;
            min-width: 56px;
            text-align: center;
        }
        .solution-step h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--light-text);
        }
        .solution-step p {
            font-size: 15px;
            color: var(--light-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ============ 深度内容1 ============ */
        .deep-zone-1 {
            background: var(--coal);
            color: var(--dark-text);
        }
        .deep-article {
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-lg);
            padding: 42px 44px;
            border: var(--border-dark);
            box-shadow: var(--shadow-dark);
            margin-top: 40px;
        }
        .deep-article h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--acid);
            margin-bottom: 20px;
        }
        .deep-article p {
            font-size: 16px;
            line-height: 1.9;
            color: #c8cdd1;
            margin-bottom: 18px;
        }
        .deep-article p:last-child {
            margin-bottom: 0;
        }
        .deep-article .data-strip {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            padding: 20px 0 0;
            margin-top: 20px;
            border-top: 1px solid rgba(198, 255, 61, 0.2);
        }
        .deep-article .data-strip .ds-item .ds-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--orange);
            font-family: var(--font-display);
            letter-spacing: 0.04em;
            line-height: 1;
        }
        .deep-article .data-strip .ds-item .ds-lbl {
            font-size: 13px;
            color: var(--dark-muted);
        }

        /* ============ 优惠阶梯 / 档位回报 ============ */
        .tier-zone {
            background: var(--soft-bg);
            color: var(--light-text);
        }
        .tier-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 44px;
        }
        .tier-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: var(--border-light);
            box-shadow: var(--shadow-light);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .tier-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.14);
        }
        .tier-card.highlight {
            border-color: var(--acid);
            background: var(--coal);
            color: var(--dark-text);
        }
        .tier-card .tier-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--orange);
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            letter-spacing: 0.06em;
        }
        .tier-card .tier-name {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 4px;
            color: inherit;
        }
        .tier-card .tier-price {
            font-size: 34px;
            font-weight: 800;
            font-family: var(--font-display);
            letter-spacing: 0.04em;
            color: var(--orange);
            margin-bottom: 12px;
            line-height: 1;
        }
        .tier-card.highlight .tier-price {
            color: var(--acid);
        }
        .tier-card ul {
            list-style: none;
            padding: 0;
            margin: 12px 0 20px;
            flex: 1;
        }
        .tier-card ul li {
            font-size: 14px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--light-muted);
        }
        .tier-card.highlight ul li {
            color: var(--dark-muted);
            border-bottom-color: rgba(255, 255, 255, 0.08);
        }
        .tier-card ul li i {
            color: var(--acid);
            font-size: 12px;
        }

        /* ============ 观点解读 ============ */
        .opinion-zone {
            background: #fff;
            color: var(--light-text);
        }
        .opinion-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: 40px;
        }
        .opinion-card {
            border-left: 4px solid var(--orange);
            background: var(--soft-bg);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 28px 28px 24px;
            transition: var(--transition);
        }
        .opinion-card:hover {
            border-left-color: var(--acid);
            background: #eef1ec;
        }
        .opinion-card blockquote {
            font-size: 16px;
            line-height: 1.85;
            color: var(--light-text);
            margin-bottom: 16px;
            font-weight: 500;
        }
        .opinion-card .opinion-author {
            font-size: 14px;
            font-weight: 700;
            color: var(--light-muted);
            letter-spacing: 0.04em;
        }

        /* ============ 新闻中心 ============ */
        .news-zone {
            background: var(--soft-bg);
            color: var(--light-text);
        }
        .news-list {
            margin-top: 36px;
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: flex;
            gap: 24px;
            align-items: flex-start;
            padding: 24px 4px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.08);
            transition: var(--transition);
        }
        .news-item:hover {
            background: #fff;
            padding-left: 16px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-light);
        }
        .news-date {
            flex-shrink: 0;
            min-width: 84px;
            text-align: center;
            display: flex;
            flex-direction: column;
            gap: 2px;
            padding-top: 4px;
        }
        .news-date .d {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            color: var(--orange);
            line-height: 1;
        }
        .news-date .m {
            font-size: 12px;
            font-weight: 600;
            color: var(--light-muted);
            letter-spacing: 0.08em;
        }
        .news-body {
            flex: 1;
        }
        .news-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--light-text);
            line-height: 1.4;
        }
        .news-body h3 a:hover {
            color: var(--orange);
        }
        .news-body p {
            font-size: 14px;
            color: var(--light-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .read-more {
            font-size: 13px;
            font-weight: 700;
            color: var(--orange);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .read-more:hover {
            gap: 10px;
        }

        /* ============ 品牌介绍 ============ */
        .brand-zone {
            background: var(--coal);
            color: var(--dark-text);
        }
        .brand-quote {
            font-size: clamp(20px, 3vw, 28px);
            line-height: 1.6;
            font-weight: 500;
            color: #e8eae7;
            max-width: 800px;
            margin-bottom: 20px;
            letter-spacing: -0.01em;
        }
        .brand-quote .accent {
            color: var(--acid);
            font-weight: 700;
        }
        .brand-text {
            font-size: 15px;
            line-height: 1.9;
            color: var(--dark-muted);
            max-width: 720px;
        }

        /* ============ 客户证言 / 支持者墙 ============ */
        .testimonial-zone {
            background: var(--soft-bg);
            color: var(--light-text);
        }
        .testi-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        .testi-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 24px 20px;
            border: var(--border-light);
            box-shadow: var(--shadow-light);
            transition: var(--transition);
            position: relative;
        }
        .testi-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
        }
        .testi-card .quote-mark {
            font-size: 42px;
            color: var(--acid);
            font-family: Georgia, serif;
            line-height: 1;
            margin-bottom: 8px;
            opacity: 0.7;
        }
        .testi-card p {
            font-size: 14px;
            color: var(--light-muted);
            line-height: 1.75;
            margin-bottom: 14px;
        }
        .testi-card .testi-author {
            font-size: 13px;
            font-weight: 700;
            color: var(--light-text);
            letter-spacing: 0.04em;
        }
        .testi-card .testi-role {
            font-size: 12px;
            color: var(--light-muted);
        }

        /* ============ 深度内容2 ============ */
        .deep-zone-2 {
            background: #fff;
            color: var(--light-text);
        }
        .deep-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            margin-top: 40px;
        }
        .deep-split-card {
            background: var(--soft-bg);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: var(--border-light);
            transition: var(--transition);
        }
        .deep-split-card:hover {
            background: #eef1ec;
            border-color: var(--acid);
        }
        .deep-split-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--light-text);
        }
        .deep-split-card p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--light-muted);
            margin-bottom: 12px;
        }
        .deep-split-card p:last-child {
            margin-bottom: 0;
        }
        .deep-split-card .highlight-num {
            font-family: var(--font-display);
            font-size: 42px;
            font-weight: 700;
            color: var(--orange);
            line-height: 1;
            display: block;
            margin-bottom: 8px;
        }

        /* ============ 平台保障 ============ */
        .guarantee-zone {
            background: var(--coal);
            color: var(--dark-text);
        }
        .guarantee-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 36px;
        }
        .guarantee-item {
            text-align: center;
            padding: 20px 16px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.04);
            border: var(--border-dark);
            transition: var(--transition);
        }
        .guarantee-item:hover {
            background: var(--acid-dim);
            border-color: var(--acid);
        }
        .guarantee-item i {
            font-size: 28px;
            color: var(--acid);
            margin-bottom: 10px;
            display: block;
        }
        .guarantee-item h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--dark-text);
            margin-bottom: 6px;
        }
        .guarantee-item p {
            font-size: 13px;
            color: var(--dark-muted);
            margin-bottom: 0;
        }

        /* ============ FAQ ============ */
        .faq-zone {
            background: var(--soft-bg);
            color: var(--light-text);
        }
        .faq-accordion {
            margin-top: 36px;
        }
        .faq-card {
            background: #fff;
            border: 1px solid rgba(0, 0, 0, 0.08);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-card:hover {
            box-shadow: var(--shadow-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 16px;
            font-weight: 700;
            color: var(--light-text);
            min-height: 44px;
            transition: var(--transition);
            gap: 16px;
        }
        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--orange);
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }
        .faq-card.open .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--acid);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            font-size: 14px;
            color: var(--light-muted);
            line-height: 1.8;
            border-left: 4px solid transparent;
        }
        .faq-card.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
            border-left-color: var(--acid);
        }

        /* ============ CTA / 线索表单 ============ */
        .cta-zone {
            background: var(--coal);
            color: var(--dark-text);
        }
        .cta-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-lg);
            padding: 44px;
            border: var(--border-dark);
            box-shadow: var(--shadow-dark);
            margin-top: 32px;
        }
        .cta-text h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--dark-text);
            margin-bottom: 12px;
        }
        .cta-text p {
            font-size: 15px;
            color: var(--dark-muted);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .lead-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .lead-form label {
            font-size: 13px;
            font-weight: 600;
            color: var(--dark-muted);
            letter-spacing: 0.04em;
        }
        .lead-form input {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--dark-text);
            font-size: 15px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            min-height: 44px;
            transition: var(--transition);
            width: 100%;
            font-family: var(--font-chinese);
        }
        .lead-form input::placeholder {
            color: #6a7076;
        }
        .lead-form input:focus {
            border-color: var(--acid);
            outline: none;
            box-shadow: 0 0 0 2px rgba(198, 255, 61, 0.25);
        }
        .form-privacy {
            font-size: 12px;
            color: var(--dark-muted);
            margin-top: 4px;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #080A0C;
            color: var(--dark-muted);
            padding: 48px 0 28px;
            font-size: 13px;
            border-top: 2px solid var(--acid);
        }
        .footer-top {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            flex-wrap: wrap;
            gap: 28px;
            padding-bottom: 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand {
            font-family: var(--font-display);
            font-size: 24px;
            font-weight: 700;
            color: var(--dark-text);
            letter-spacing: 0.06em;
        }
        .footer-links {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: var(--dark-muted);
            font-size: 13px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--acid);
            text-decoration: underline;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            font-size: 12px;
            color: #5a6066;
        }
        .footer-bottom .legal-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom .legal-links a {
            color: #5a6066;
        }
        .footer-bottom .legal-links a:hover {
            color: var(--acid);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .masthead-nav {
                gap: 16px;
                font-size: 13px;
            }
            .masthead-brand a {
                font-size: 26px;
            }
            .pain-grid {
                grid-template-columns: 1fr;
            }
            .solution-steps {
                grid-template-columns: 1fr;
            }
            .tier-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .testi-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-split {
                grid-template-columns: 1fr;
            }
            .guarantee-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-panel {
                grid-template-columns: 1fr;
                padding: 32px;
            }
            .hero {
                min-height: 520px;
                padding: 60px 0 80px;
            }
            .hero-watermark {
                font-size: 140px;
            }
            .section-pad {
                padding: 64px 0;
            }
        }
        @media (max-width: 768px) {
            .masthead-inner {
                padding: 14px 0;
                gap: 12px;
            }
            .masthead-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 12px;
                padding: 16px 0 8px;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
            }
            .masthead-nav.open {
                display: flex;
            }
            .masthead-nav a {
                padding: 8px 0;
                font-size: 15px;
            }
            .hamburger-btn {
                display: block;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-data-row {
                gap: 20px;
                margin-top: 28px;
            }
            .tier-cards {
                grid-template-columns: 1fr;
            }
            .testi-grid {
                grid-template-columns: 1fr;
            }
            .guarantee-strip {
                grid-template-columns: 1fr 1fr;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-date {
                flex-direction: row;
                gap: 8px;
                align-items: baseline;
                min-width: auto;
            }
            .deep-article {
                padding: 24px 20px;
            }
            .cta-panel {
                padding: 24px 20px;
            }
            .section-pad {
                padding: 48px 0;
            }
            .footer-top {
                flex-direction: column;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero {
                padding: 48px 0 64px;
                min-height: 480px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 22px;
            }
            .pain-card {
                padding: 20px;
            }
            .tier-card {
                padding: 20px 16px;
            }
            .guarantee-strip {
                grid-template-columns: 1fr;
            }
            .guarantee-item {
                padding: 16px 12px;
            }
            .opinion-grid {
                grid-template-columns: 1fr;
            }
            .hero-data-item .num {
                font-size: 22px;
            }
        }

/* roulang page: category1 */
:root {
            --coal: #0C0F12;
            --coal-light: #161B1F;
            --acid: #C6FF3D;
            --acid-dim: rgba(198, 255, 61, 0.15);
            --orange: #FF5C1A;
            --soft-bg: #F4F6F3;
            --dark-text: #F7F7F0;
            --dark-muted: #9CA3A8;
            --light-text: #1A1D20;
            --light-muted: #6E7479;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.35);
            --border-light: 1px solid rgba(0, 0, 0, 0.06);
            --border-dark: 1px solid rgba(198, 255, 61, 0.15);
            --font-chinese: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-display: 'Bebas Neue', 'Oswald', 'Noto Sans SC', sans-serif;
            --transition: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-chinese);
            font-size: 16px;
            line-height: 1.7;
            color: var(--light-text);
            background: var(--soft-bg);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--acid);
            outline-offset: 2px;
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding: 88px 0;
        }
        .section-pad-sm {
            padding: 64px 0;
        }
        .section-pad-xs {
            padding: 48px 0;
        }

        .text-muted-on-dark {
            color: var(--dark-muted);
        }
        .text-muted-on-light {
            color: var(--light-muted);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--orange);
            margin-bottom: 12px;
        }
        .section-label.acid {
            color: var(--acid);
        }
        .section-title {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 0;
        }

        /* Navigation */
        .masthead {
            background: var(--coal);
            border-bottom: 1px solid rgba(198, 255, 61, 0.15);
            position: sticky;
            top: 0;
            z-index: 60;
        }
        .masthead-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 14px 0;
            min-height: 68px;
        }
        .masthead-brand {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .masthead-brand a {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--dark-text);
            line-height: 1;
            text-transform: uppercase;
            position: relative;
        }
        .masthead-brand a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 0;
            height: 3px;
            background: var(--acid);
            transition: width 0.3s ease;
        }
        .masthead-brand a:hover::after {
            width: 100%;
        }
        .masthead-divider {
            width: 2px;
            height: 28px;
            background: rgba(198, 255, 61, 0.55);
            flex-shrink: 0;
        }
        .masthead-nav {
            display: flex;
            align-items: center;
            gap: 22px;
            flex-wrap: wrap;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.04em;
        }
        .masthead-nav a {
            color: var(--dark-muted);
            position: relative;
            padding: 4px 0;
            transition: var(--transition);
            white-space: nowrap;
        }
        .masthead-nav a:hover,
        .masthead-nav a.active {
            color: var(--acid);
        }
        .masthead-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -3px;
            width: 0;
            height: 2px;
            background: var(--acid);
            transition: width 0.3s ease;
        }
        .masthead-nav a:hover::after,
        .masthead-nav a.active::after {
            width: 100%;
        }
        .hamburger-btn {
            display: none;
            background: transparent;
            border: none;
            color: var(--dark-text);
            font-size: 26px;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .hamburger-btn:hover {
            background: var(--acid-dim);
            color: var(--acid);
        }

        /* Hero */
        .hero-category {
            background: var(--coal);
            color: var(--dark-text);
            position: relative;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
            padding: 70px 0 90px;
        }
        .hero-category-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.16;
            z-index: 1;
        }
        .hero-category-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(12, 15, 18, 0.5) 0%, rgba(12, 15, 18, 0.94) 100%);
            z-index: 2;
        }
        .hero-category-content {
            position: relative;
            z-index: 3;
            max-width: 820px;
        }
        .hero-category-content h1 {
            font-size: clamp(36px, 5.5vw, 56px);
            font-weight: 800;
            letter-spacing: -0.03em;
            line-height: 1.15;
            margin-bottom: 20px;
            color: var(--dark-text);
        }
        .hero-category-content h1 .highlight {
            color: var(--acid);
            border-bottom: 4px solid var(--orange);
            padding-bottom: 4px;
        }
        .hero-category-content .hero-desc {
            font-size: 18px;
            line-height: 1.7;
            color: var(--dark-muted);
            max-width: 680px;
            margin-bottom: 28px;
        }
        .hero-meta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .hero-meta-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--acid-dim);
            color: var(--acid);
            border: 1px solid rgba(198, 255, 61, 0.25);
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
        }
        .hero-meta-chip.orange {
            background: rgba(255, 92, 26, 0.12);
            color: var(--orange);
            border-color: rgba(255, 92, 26, 0.25);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--coal-light);
            border-bottom: 1px solid rgba(198, 255, 61, 0.1);
            padding: 14px 0;
        }
        .breadcrumb-bar .breadcrumb-inner {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--dark-muted);
        }
        .breadcrumb-bar .breadcrumb-inner a {
            color: var(--dark-text);
        }
        .breadcrumb-bar .breadcrumb-inner a:hover {
            color: var(--acid);
        }
        .breadcrumb-bar .breadcrumb-inner .sep {
            color: var(--orange);
            font-size: 12px;
        }
        .breadcrumb-bar .breadcrumb-inner .current {
            color: var(--acid);
            font-weight: 600;
        }

        /* Filter bar */
        .filter-bar {
            background: var(--coal);
            border: 1px solid rgba(198, 255, 61, 0.15);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            margin-top: -40px;
            position: relative;
            z-index: 10;
            box-shadow: var(--shadow-dark);
        }
        .filter-bar-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
        }
        .filter-group {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .filter-label {
            font-size: 13px;
            color: var(--dark-muted);
            font-weight: 600;
            white-space: nowrap;
        }
        .filter-btn {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--dark-muted);
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 13px;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .filter-btn:hover {
            border-color: var(--acid);
            color: var(--acid);
            background: var(--acid-dim);
        }
        .filter-btn.active {
            background: var(--acid);
            color: var(--coal);
            border-color: var(--acid);
            font-weight: 700;
        }
        .filter-sort-select {
            background: var(--coal-light);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--dark-text);
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 13px;
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-sort-select:focus {
            border-color: var(--acid);
            outline: none;
            box-shadow: 0 0 0 2px var(--acid-dim);
        }

        /* Main large card list */
        .match-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
            margin-top: 40px;
        }
        .match-card-large {
            display: grid;
            grid-template-columns: 1fr 1.6fr;
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            border: var(--border-light);
            transition: var(--transition);
            min-height: 260px;
        }
        .match-card-large:hover {
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.14);
            transform: translateY(-3px);
        }
        .match-card-large .card-img {
            background-size: cover;
            background-position: center;
            min-height: 260px;
            position: relative;
        }
        .match-card-large .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .match-card-large .card-img .img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(12, 15, 18, 0) 40%, rgba(12, 15, 18, 0.55) 100%);
            z-index: 1;
        }
        .match-card-large .card-body {
            padding: 28px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 12px;
        }
        .match-card-large .card-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--orange);
        }
        .match-card-large .card-tag .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--acid);
            display: inline-block;
        }
        .match-card-large .card-title {
            font-size: 24px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--light-text);
            letter-spacing: -0.01em;
        }
        .match-card-large .card-excerpt {
            font-size: 15px;
            line-height: 1.7;
            color: var(--light-muted);
            max-width: 540px;
        }
        .match-card-large .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px solid rgba(0, 0, 0, 0.06);
        }
        .match-card-large .card-date {
            font-size: 13px;
            color: var(--light-muted);
            font-weight: 500;
        }
        .match-card-large .card-link {
            font-size: 14px;
            font-weight: 700;
            color: var(--orange);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .match-card-large .card-link:hover {
            gap: 12px;
            color: var(--coal);
        }

        /* Section highlight data */
        .data-strip {
            background: var(--coal);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
            box-shadow: var(--shadow-dark);
            border: var(--border-dark);
        }
        .data-strip .data-item {
            text-align: left;
        }
        .data-strip .data-item .data-number {
            font-family: var(--font-display);
            font-size: 48px;
            font-weight: 700;
            color: var(--acid);
            line-height: 1;
            letter-spacing: 0.04em;
        }
        .data-strip .data-item .data-number.orange {
            color: var(--orange);
        }
        .data-strip .data-item .data-label {
            font-size: 13px;
            color: var(--dark-muted);
            margin-top: 8px;
            font-weight: 500;
        }

        /* Depth content */
        .depth-block {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            box-shadow: var(--shadow-light);
            border: var(--border-light);
            margin-top: 32px;
        }
        .depth-block p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--light-text);
            margin-bottom: 16px;
        }
        .depth-block p:last-child {
            margin-bottom: 0;
        }
        .depth-block .depth-title {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--light-text);
        }
        .depth-block .highlight-text {
            background: linear-gradient(180deg, transparent 60%, rgba(198, 255, 61, 0.35) 40%);
            font-weight: 700;
            padding: 0 4px;
        }

        /* FAQ */
        .faq-list {
            margin-top: 32px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid rgba(0, 0, 0, 0.06);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-light);
        }
        .faq-item .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 16px;
            font-weight: 700;
            color: var(--light-text);
            cursor: pointer;
            text-align: left;
            transition: var(--transition);
        }
        .faq-item .faq-question .faq-icon {
            font-size: 14px;
            color: var(--orange);
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }
        .faq-item .faq-question:hover {
            color: var(--orange);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--light-muted);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }

        /* CTA */
        .cta-section {
            background: var(--coal);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
            align-items: center;
            box-shadow: var(--shadow-dark);
            border: var(--border-dark);
            margin-top: 48px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 200px;
            height: 200px;
            border: 2px solid rgba(198, 255, 61, 0.15);
            border-radius: 50%;
            z-index: 0;
        }
        .cta-section > * {
            position: relative;
            z-index: 1;
        }
        .cta-section .cta-title {
            font-size: 28px;
            font-weight: 800;
            color: var(--dark-text);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .cta-section .cta-desc {
            color: var(--dark-muted);
            font-size: 16px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .cta-section .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            font-family: var(--font-chinese);
            text-align: center;
            justify-content: center;
        }
        .btn-primary {
            background: var(--orange);
            color: #fff;
            border-color: var(--orange);
        }
        .btn-primary:hover {
            background: var(--coal-light);
            color: var(--acid);
            border-color: var(--acid);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
        }
        .btn-acid {
            background: var(--acid);
            color: var(--coal);
            border-color: var(--acid);
        }
        .btn-acid:hover {
            background: transparent;
            color: var(--acid);
            border-color: var(--acid);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--dark-text);
            border-color: rgba(255, 255, 255, 0.25);
        }
        .btn-outline-light:hover {
            background: var(--acid);
            color: var(--coal);
            border-color: var(--acid);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: var(--coal);
            color: var(--dark-muted);
            padding: 48px 0 32px;
            border-top: 1px solid rgba(198, 255, 61, 0.15);
            margin-top: 0;
        }
        .site-footer .footer-top {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: flex-start;
            gap: 24px;
            margin-bottom: 32px;
            padding-bottom: 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-footer .footer-brand {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--dark-text);
            text-transform: uppercase;
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            font-size: 14px;
        }
        .site-footer .footer-links a {
            color: var(--dark-muted);
        }
        .site-footer .footer-links a:hover {
            color: var(--acid);
        }
        .site-footer .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 13px;
        }
        .site-footer .legal-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .site-footer .legal-links a,
        .site-footer .legal-links span {
            color: var(--dark-muted);
        }
        .site-footer .legal-links a:hover {
            color: var(--acid);
        }

        /* Mobile nav */
        @media (max-width: 1024px) {
            .masthead-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--coal-light);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                gap: 0;
                border-bottom: 2px solid var(--acid);
            }
            .masthead-nav.open {
                display: flex;
            }
            .masthead-nav a {
                padding: 14px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                font-size: 15px;
            }
            .masthead-nav a:last-child {
                border-bottom: none;
            }
            .hamburger-btn {
                display: block;
            }
            .masthead-inner {
                flex-wrap: wrap;
            }
            .masthead-brand a {
                font-size: 26px;
            }
            .hero-category {
                min-height: 420px;
                padding: 50px 0 70px;
            }
            .match-card-large {
                grid-template-columns: 1fr;
            }
            .match-card-large .card-img {
                min-height: 200px;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .cta-section {
                grid-template-columns: 1fr;
                padding: 40px 32px;
            }
        }

        @media (max-width: 768px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-pad {
                padding: 56px 0;
            }
            .section-pad-sm {
                padding: 40px 0;
            }
            .section-pad-xs {
                padding: 32px 0;
            }
            .hero-category-content h1 {
                font-size: 32px;
            }
            .hero-category-content .hero-desc {
                font-size: 15px;
            }
            .filter-bar {
                padding: 16px;
                margin-top: -30px;
            }
            .filter-bar-inner {
                flex-direction: column;
                align-items: stretch;
            }
            .match-card-large .card-body {
                padding: 20px;
            }
            .match-card-large .card-title {
                font-size: 20px;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
                padding: 24px 20px;
            }
            .data-strip .data-item .data-number {
                font-size: 34px;
            }
            .depth-block {
                padding: 24px 20px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .site-footer .footer-top {
                flex-direction: column;
                gap: 16px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .masthead-brand a {
                font-size: 22px;
            }
            .masthead-divider {
                height: 20px;
            }
            .hero-category {
                min-height: 360px;
                padding: 40px 0 60px;
            }
            .hero-category-content h1 {
                font-size: 26px;
            }
            .match-card-large .card-img {
                min-height: 160px;
            }
            .data-strip {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .data-strip .data-item .data-number {
                font-size: 30px;
            }
            .cta-section .cta-title {
                font-size: 22px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
                width: 100%;
            }
        }

/* roulang page: category2 */
:root {
            --coal: #0C0F12;
            --coal-light: #161B1F;
            --acid: #C6FF3D;
            --acid-dim: rgba(198, 255, 61, 0.15);
            --orange: #FF5C1A;
            --soft-bg: #F4F6F3;
            --dark-text: #F7F7F0;
            --dark-muted: #9CA3A8;
            --light-text: #1A1D20;
            --light-muted: #6E7479;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.35);
            --border-light: 1px solid rgba(0, 0, 0, 0.06);
            --border-dark: 1px solid rgba(198, 255, 61, 0.15);
            --font-chinese: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-display: 'Bebas Neue', 'Oswald', 'Noto Sans SC', sans-serif;
            --transition: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-chinese);
            font-size: 16px;
            line-height: 1.75;
            color: var(--light-text);
            background: var(--soft-bg);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--acid);
            outline-offset: 2px;
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding: 88px 0;
        }
        .section-pad-sm {
            padding: 64px 0;
        }
        .section-pad-xs {
            padding: 48px 0;
        }

        .text-muted-on-dark {
            color: var(--dark-muted);
        }
        .text-muted-on-light {
            color: var(--light-muted);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--orange);
            margin-bottom: 12px;
        }
        .section-label.acid {
            color: var(--acid);
        }

        .section-title {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 0;
        }

        /* ============ 杂志刊头导航 ============ */
        .masthead {
            background: var(--coal);
            border-bottom: 1px solid rgba(198, 255, 61, 0.12);
            position: relative;
            z-index: 100;
        }

        .masthead-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            flex-wrap: wrap;
            gap: 12px 18px;
        }

        .masthead-brand {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .masthead-brand a {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--dark-text);
            line-height: 1;
            text-transform: uppercase;
            position: relative;
        }

        .masthead-brand a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 0;
            height: 3px;
            background: var(--acid);
            transition: width 0.3s ease;
        }

        .masthead-brand a:hover::after {
            width: 100%;
        }

        .masthead-divider {
            width: 2px;
            height: 28px;
            background: rgba(198, 255, 61, 0.55);
            flex-shrink: 0;
        }

        .masthead-nav {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.04em;
        }

        .masthead-nav a {
            color: var(--dark-muted);
            position: relative;
            padding: 4px 0;
            transition: var(--transition);
            white-space: nowrap;
        }

        .masthead-nav a:hover,
        .masthead-nav a.active {
            color: var(--acid);
        }

        .masthead-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -3px;
            width: 0;
            height: 2px;
            background: var(--acid);
            transition: width 0.3s ease;
        }

        .masthead-nav a:hover::after,
        .masthead-nav a.active::after {
            width: 100%;
        }

        .hamburger-btn {
            display: none;
            background: transparent;
            border: none;
            color: var(--dark-text);
            font-size: 26px;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .hamburger-btn:hover {
            background: var(--acid-dim);
            color: var(--acid);
        }

        /* ============ 分类刊头 ============ */
        .category-hero {
            background: var(--coal);
            color: var(--dark-text);
            position: relative;
            overflow: hidden;
            padding: 72px 0 64px;
        }

        .category-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.16;
            z-index: 1;
        }

        .category-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(12, 15, 18, 0.5) 0%, rgba(12, 15, 18, 0.95) 100%);
            z-index: 2;
        }

        .category-hero-content {
            position: relative;
            z-index: 3;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--dark-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--dark-muted);
            text-decoration: none;
            transition: var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--acid);
        }

        .breadcrumb .sep {
            color: var(--acid);
            opacity: 0.5;
        }

        .breadcrumb .current {
            color: var(--acid);
            font-weight: 600;
        }

        .category-hero h1 {
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            color: var(--dark-text);
        }

        .category-hero .hero-sub {
            font-size: 17px;
            line-height: 1.8;
            max-width: 680px;
            color: var(--dark-muted);
            margin-bottom: 24px;
        }

        .hero-badges {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            background: var(--acid-dim);
            border: 1px solid var(--border-dark);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            color: var(--acid);
        }

        .hero-badge.orange {
            background: rgba(255, 92, 26, 0.15);
            border-color: rgba(255, 92, 26, 0.35);
            color: var(--orange);
        }

        /* ============ 筛选排序条 ============ */
        .filter-bar {
            background: var(--coal);
            border-bottom: 1px solid rgba(198, 255, 61, 0.08);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 50;
        }

        .filter-inner {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .filter-label {
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--dark-muted);
            text-transform: uppercase;
            flex-shrink: 0;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--dark-muted);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .filter-tag:hover {
            background: var(--acid-dim);
            border-color: var(--acid);
            color: var(--acid);
        }

        .filter-tag.active-tag {
            background: var(--acid);
            border-color: var(--acid);
            color: var(--coal);
            font-weight: 700;
        }

        /* ============ 数据快照 ============ */
        .snapshot-section {
            background: var(--soft-bg);
            padding: 56px 0;
        }

        .snapshot-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .snapshot-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 24px 20px;
            box-shadow: var(--shadow-light);
            border: var(--border-light);
            text-align: left;
            transition: var(--transition);
        }

        .snapshot-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
        }

        .snapshot-number {
            font-family: var(--font-display);
            font-size: 44px;
            font-weight: 700;
            line-height: 1;
            color: var(--orange);
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }

        .snapshot-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--light-text);
            margin-bottom: 4px;
        }

        .snapshot-note {
            font-size: 13px;
            color: var(--light-muted);
            line-height: 1.6;
        }

        /* ============ 左右图文交替 ============ */
        .alternate-section {
            padding: 72px 0;
        }
        .alternate-section.dark {
            background: var(--coal);
            color: var(--dark-text);
        }
        .alternate-section.light {
            background: var(--soft-bg);
        }

        .alt-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .alt-row.reverse {
            direction: rtl;
        }
        .alt-row.reverse>* {
            direction: ltr;
        }

        .alt-row.asymmetric-left {
            grid-template-columns: 1.15fr 0.85fr;
        }
        .alt-row.asymmetric-right {
            grid-template-columns: 0.85fr 1.15fr;
        }

        .alt-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            position: relative;
        }

        .alt-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .alt-image::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(0, 0, 0, 0.08);
            pointer-events: none;
        }

        .dark .alt-image {
            box-shadow: var(--shadow-dark);
        }

        .dark .alt-image::after {
            border-color: rgba(198, 255, 61, 0.15);
        }

        .alt-content {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .alt-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--orange);
        }
        .dark .alt-tag {
            color: var(--acid);
        }

        .alt-title {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin: 0;
        }

        .alt-desc {
            font-size: 15px;
            line-height: 1.85;
            color: var(--light-muted);
            margin: 0;
        }
        .dark .alt-desc {
            color: var(--dark-muted);
        }

        .alt-stat-list {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .alt-stat-item {
            display: flex;
            flex-direction: column;
        }

        .alt-stat-num {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 700;
            color: var(--orange);
            line-height: 1;
        }
        .dark .alt-stat-num {
            color: var(--acid);
        }

        .alt-stat-label {
            font-size: 12px;
            font-weight: 500;
            color: var(--light-muted);
            letter-spacing: 0.04em;
        }
        .dark .alt-stat-label {
            color: var(--dark-muted);
        }

        /* ============ 训练方法模块 ============ */
        .methods-section {
            background: #fff;
            padding: 72px 0;
        }

        .methods-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 36px;
        }

        .method-card {
            background: var(--soft-bg);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: var(--border-light);
            box-shadow: var(--shadow-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .method-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
            border-color: rgba(255, 92, 26, 0.25);
        }

        .method-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: var(--acid-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--coal);
            flex-shrink: 0;
        }

        .method-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--light-text);
            margin: 0;
            line-height: 1.4;
        }

        .method-desc {
            font-size: 14px;
            line-height: 1.75;
            color: var(--light-muted);
            margin: 0;
            flex-grow: 1;
        }

        .method-link {
            font-size: 13px;
            font-weight: 700;
            color: var(--orange);
            text-decoration: none;
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .method-link:hover {
            color: var(--coal);
            text-decoration: underline;
        }

        /* ============ 周期化大数字区 ============ */
        .period-section {
            background: var(--coal);
            color: var(--dark-text);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .period-section::before {
            content: '333';
            position: absolute;
            font-family: var(--font-display);
            font-size: 280px;
            font-weight: 700;
            color: rgba(198, 255, 61, 0.04);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 1;
            pointer-events: none;
            letter-spacing: 0.1em;
        }

        .period-content {
            position: relative;
            z-index: 2;
        }

        .period-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            border: 1px solid rgba(198, 255, 61, 0.15);
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: rgba(255, 255, 255, 0.02);
        }

        .period-cell {
            padding: 32px 24px;
            border-right: 1px solid rgba(198, 255, 61, 0.1);
            text-align: center;
            transition: var(--transition);
        }

        .period-cell:last-child {
            border-right: none;
        }

        .period-cell:hover {
            background: rgba(198, 255, 61, 0.05);
        }

        .period-num {
            font-family: var(--font-display);
            font-size: 56px;
            font-weight: 700;
            color: var(--acid);
            line-height: 1;
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }

        .period-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark-text);
            margin-bottom: 6px;
        }

        .period-desc {
            font-size: 13px;
            line-height: 1.6;
            color: var(--dark-muted);
        }

        /* ============ 恢复与再生 ============ */
        .recovery-section {
            background: var(--soft-bg);
            padding: 72px 0;
        }

        .recovery-grid {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 48px;
            align-items: start;
            margin-top: 24px;
        }

        .recovery-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .recovery-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: #fff;
            padding: 20px 18px;
            border-radius: var(--radius-md);
            border: var(--border-light);
            box-shadow: var(--shadow-light);
            transition: var(--transition);
        }

        .recovery-item:hover {
            transform: translateX(4px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
        }

        .recovery-item-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: rgba(255, 92, 26, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--orange);
            flex-shrink: 0;
        }

        .recovery-item-text h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--light-text);
            margin: 0 0 4px;
        }

        .recovery-item-text p {
            font-size: 14px;
            color: var(--light-muted);
            margin: 0;
            line-height: 1.65;
        }

        /* ============ 专家观点 ============ */
        .expert-section {
            background: #fff;
            padding: 64px 0;
        }

        .expert-quote {
            background: var(--coal);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-dark);
        }

        .expert-quote::before {
            content: '\201C';
            position: absolute;
            font-family: var(--font-display);
            font-size: 200px;
            color: rgba(198, 255, 61, 0.06);
            top: -30px;
            left: 20px;
            pointer-events: none;
            line-height: 1;
        }

        .expert-quote blockquote {
            margin: 0;
            position: relative;
            z-index: 2;
        }

        .expert-quote p {
            font-size: 20px;
            line-height: 1.8;
            color: var(--dark-text);
            font-weight: 600;
            margin: 0 0 20px;
        }

        .expert-quote footer {
            font-size: 14px;
            color: var(--dark-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .expert-quote footer .quote-name {
            color: var(--acid);
            font-weight: 700;
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--soft-bg);
            padding: 72px 0;
        }

        .faq-list {
            max-width: 760px;
            margin-top: 24px;
        }

        .faq-list .accordion {
            background: transparent;
            border-radius: var(--radius-md);
        }

        .faq-list .accordion-item {
            background: #fff;
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid rgba(0, 0, 0, 0.06);
            box-shadow: var(--shadow-light);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-list .accordion-item:hover {
            border-color: rgba(255, 92, 26, 0.2);
        }

        .faq-list .accordion-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--light-text);
            padding: 18px 20px;
            border: none;
            background: transparent;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: var(--transition);
        }

        .faq-list .accordion-title:hover {
            background: rgba(198, 255, 61, 0.06);
            color: var(--coal);
        }

        .faq-list .accordion-title::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--orange);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-list .accordion-item.is-active .accordion-title::after {
            content: '\2212';
            color: var(--acid);
        }

        .faq-list .accordion-item.is-active {
            border-left: 4px solid var(--acid);
        }

        .faq-list .accordion-content {
            padding: 0 20px 20px;
            border: none;
            background: transparent;
            font-size: 15px;
            line-height: 1.8;
            color: var(--light-muted);
        }

        .faq-list .accordion-content p {
            margin: 0;
        }

        /* ============ CTA ============ */
        .cta-section {
            background: var(--coal);
            color: var(--dark-text);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: 0.12;
            z-index: 1;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--dark-text);
        }

        .cta-content p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--dark-muted);
            margin-bottom: 28px;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--acid);
            color: var(--coal);
            font-weight: 700;
            font-size: 15px;
            border-radius: var(--radius-sm);
            text-decoration: none;
            transition: var(--transition);
            border: 2px solid var(--acid);
            cursor: pointer;
        }

        .btn-primary:hover {
            background: #d9ff6e;
            border-color: #d9ff6e;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(198, 255, 61, 0.25);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: var(--dark-text);
            font-weight: 700;
            font-size: 15px;
            border-radius: var(--radius-sm);
            text-decoration: none;
            transition: var(--transition);
            border: 2px solid rgba(255, 255, 255, 0.2);
            cursor: pointer;
        }

        .btn-secondary:hover {
            background: var(--acid);
            border-color: var(--acid);
            color: var(--coal);
            transform: translateY(-2px);
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #080A0C;
            color: var(--dark-muted);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(198, 255, 61, 0.1);
        }

        .footer-top {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            padding-bottom: 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            margin-bottom: 24px;
        }

        .footer-brand {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--dark-text);
            text-transform: uppercase;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 20px;
            font-size: 13px;
        }

        .footer-links a {
            color: var(--dark-muted);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--acid);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            line-height: 1.6;
        }

        .legal-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 16px;
            align-items: center;
        }

        .legal-links a {
            color: var(--dark-muted);
            text-decoration: none;
            transition: var(--transition);
        }

        .legal-links a:hover {
            color: var(--acid);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 768px) {
            .masthead-inner {
                padding: 12px 16px;
            }
            .masthead-brand a {
                font-size: 26px;
            }
            .masthead-divider {
                height: 22px;
            }
            .masthead-nav {
                display: none;
                flex-direction: column;
                gap: 0;
                width: 100%;
                padding: 12px 0;
                background: var(--coal);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .masthead-nav.open {
                display: flex;
            }
            .masthead-nav a {
                padding: 10px 0;
                font-size: 15px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            }
            .masthead-nav a:last-child {
                border-bottom: none;
            }
            .hamburger-btn {
                display: block;
            }
            .snapshot-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .snapshot-number {
                font-size: 32px;
            }
            .alt-row,
            .alt-row.reverse,
            .alt-row.asymmetric-left,
            .alt-row.asymmetric-right {
                grid-template-columns: 1fr;
                direction: ltr;
                gap: 24px;
            }
            .alt-image img {
                aspect-ratio: 16/10;
            }
            .methods-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .period-grid {
                grid-template-columns: 1fr 1fr;
            }
            .period-cell {
                padding: 20px 16px;
                border-right: 1px solid rgba(198, 255, 61, 0.1);
                border-bottom: 1px solid rgba(198, 255, 61, 0.1);
            }
            .period-cell:nth-child(2) {
                border-right: none;
            }
            .period-cell:nth-child(3),
            .period-cell:nth-child(4) {
                border-bottom: none;
            }
            .period-num {
                font-size: 40px;
            }
            .recovery-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section-pad,
            .section-pad-sm,
            .section-pad-xs {
                padding: 48px 0;
            }
            .alt-title {
                font-size: 22px;
            }
            .expert-quote {
                padding: 32px 24px;
            }
            .expert-quote p {
                font-size: 17px;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                max-width: 320px;
                justify-content: center;
            }
            .footer-top {
                flex-direction: column;
                gap: 16px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .filter-inner {
                gap: 6px;
            }
            .filter-tag {
                padding: 5px 10px;
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .snapshot-grid {
                grid-template-columns: 1fr;
            }
            .period-grid {
                grid-template-columns: 1fr;
            }
            .period-cell {
                border-right: none;
                border-bottom: 1px solid rgba(198, 255, 61, 0.1);
                padding: 16px;
            }
            .period-cell:last-child {
                border-bottom: none;
            }
            .period-num {
                font-size: 36px;
            }
            .category-hero {
                padding: 48px 0;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .alt-title {
                font-size: 20px;
            }
            .alt-stat-item {
                flex: 1;
                min-width: 80px;
            }
            .masthead-brand a {
                font-size: 22px;
            }
            .masthead-divider {
                height: 18px;
            }
            .faq-list .accordion-title {
                font-size: 15px;
                padding: 14px 16px;
            }
            .faq-list .accordion-content {
                padding: 0 16px 16px;
                font-size: 14px;
            }
        }

        @media (min-width: 769px) and (max-width: 1023px) {
            .masthead-nav {
                gap: 16px;
                font-size: 13px;
            }
            .masthead-brand a {
                font-size: 26px;
            }
            .snapshot-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .alt-row,
            .alt-row.reverse,
            .alt-row.asymmetric-left,
            .alt-row.asymmetric-right {
                gap: 28px;
            }
            .methods-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

/* roulang page: category3 */
/* ============ roulang design system ============ */
        :root {
            --coal: #0C0F12;
            --coal-light: #161B1F;
            --acid: #C6FF3D;
            --acid-dim: rgba(198, 255, 61, 0.15);
            --orange: #FF5C1A;
            --soft-bg: #F4F6F3;
            --dark-text: #F7F7F0;
            --dark-muted: #9CA3A8;
            --light-text: #1A1D20;
            --light-muted: #6E7479;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.35);
            --border-light: 1px solid rgba(0, 0, 0, 0.06);
            --border-dark: 1px solid rgba(198, 255, 61, 0.15);
            --font-chinese: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-display: 'Bebas Neue', 'Oswald', 'Noto Sans SC', sans-serif;
            --transition: all 0.25s ease;
        }

        /* ============ reset & base ============ */
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            box-sizing: border-box;
        }
        *, *::before, *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-chinese);
            font-size: 16px;
            line-height: 1.7;
            color: var(--light-text);
            background: var(--soft-bg);
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--acid);
            outline-offset: 2px;
        }
        button {
            cursor: pointer;
            font-family: var(--font-chinese);
        }
        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-pad {
            padding: 88px 0;
        }
        .section-pad-sm {
            padding: 64px 0;
        }
        .section-pad-xs {
            padding: 48px 0;
        }
        .text-muted-on-dark {
            color: var(--dark-muted);
        }
        .text-muted-on-light {
            color: var(--light-muted);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--orange);
            margin-bottom: 12px;
        }
        .section-label.acid {
            color: var(--acid);
        }
        .section-title {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            color: var(--light-text);
        }
        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 0;
            color: var(--light-muted);
        }

        /* ============ masthead / magazine nav ============ */
        .site-header {
            background: var(--coal);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid rgba(198, 255, 61, 0.18);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
        }
        .site-header .grid-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            min-height: 72px;
            padding-top: 10px;
            padding-bottom: 10px;
        }
        .masthead-brand {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .masthead-brand a {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--dark-text);
            line-height: 1;
            text-transform: uppercase;
            position: relative;
            padding: 4px 0;
        }
        .masthead-brand a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 0;
            height: 3px;
            background: var(--acid);
            transition: width 0.3s ease;
        }
        .masthead-brand a:hover::after {
            width: 100%;
        }
        .masthead-divider {
            width: 2px;
            height: 28px;
            background: rgba(198, 255, 61, 0.55);
            flex-shrink: 0;
        }
        .masthead-nav {
            display: flex;
            align-items: center;
            gap: 22px;
            flex-wrap: wrap;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.04em;
        }
        .masthead-nav a {
            color: var(--dark-muted);
            position: relative;
            padding: 6px 0;
            transition: var(--transition);
            white-space: nowrap;
        }
        .masthead-nav a:hover,
        .masthead-nav a.active {
            color: var(--acid);
        }
        .masthead-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -3px;
            width: 0;
            height: 2px;
            background: var(--acid);
            transition: width 0.3s ease;
        }
        .masthead-nav a:hover::after,
        .masthead-nav a.active::after {
            width: 100%;
        }
        .hamburger-btn {
            display: none;
            background: transparent;
            border: none;
            color: var(--dark-text);
            font-size: 26px;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            line-height: 1;
        }
        .hamburger-btn:hover {
            background: var(--acid-dim);
            color: var(--acid);
        }

        /* ============ Hero / category banner ============ */
        .cat-hero {
            background: var(--coal);
            color: var(--dark-text);
            position: relative;
            overflow: hidden;
            padding: 76px 0 90px;
        }
        .cat-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.15;
            z-index: 1;
        }
        .cat-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(12, 15, 18, 0.65) 0%, rgba(12, 15, 18, 0.93) 100%);
            z-index: 2;
        }
        .cat-hero-content {
            position: relative;
            z-index: 3;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--dark-muted);
            margin-bottom: 22px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--dark-muted);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--acid);
        }
        .breadcrumb .sep {
            font-size: 10px;
            color: rgba(198, 255, 61, 0.5);
        }
        .breadcrumb .current {
            color: var(--acid);
        }
        .cat-hero h1 {
            font-size: clamp(34px, 5vw, 48px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.02em;
            color: var(--dark-text);
        }
        .cat-hero .hero-desc {
            font-size: 17px;
            line-height: 1.85;
            max-width: 780px;
            color: rgba(247, 247, 240, 0.8);
            margin-bottom: 28px;
        }
        .hero-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.03em;
            background: var(--acid-dim);
            border: 1px solid rgba(198, 255, 61, 0.3);
            color: var(--acid);
        }
        .hero-badge.orange-badge {
            background: rgba(255, 92, 26, 0.12);
            border-color: rgba(255, 92, 26, 0.35);
            color: var(--orange);
        }

        /* ============ filter / sort bar ============ */
        .filter-bar {
            background: var(--coal-light);
            border-bottom: 1px solid rgba(198, 255, 61, 0.1);
            padding: 18px 0;
        }
        .filter-bar .filter-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
        }
        .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 18px;
            font-size: 13px;
            font-weight: 500;
            color: var(--dark-muted);
            background: transparent;
            border: 1px solid rgba(198, 255, 61, 0.2);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .filter-tag:hover,
        .filter-tag.active {
            background: var(--acid-dim);
            border-color: var(--acid);
            color: var(--acid);
        }
        .sort-select-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--dark-muted);
        }
        .sort-select-wrap select {
            background: var(--coal);
            border: 1px solid rgba(198, 255, 61, 0.25);
            color: var(--dark-text);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-family: var(--font-chinese);
            cursor: pointer;
            transition: var(--transition);
        }
        .sort-select-wrap select:hover,
        .sort-select-wrap select:focus {
            border-color: var(--acid);
            outline: none;
        }

        /* ============ main content: list + sidebar ============ */
        .analysis-main {
            background: var(--soft-bg);
            padding: 56px 0 72px;
        }
        .analysis-list-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-light);
            overflow: hidden;
            margin-bottom: 28px;
            transition: var(--transition);
            border: 1px solid rgba(0, 0, 0, 0.04);
            display: flex;
            flex-direction: column;
        }
        .analysis-list-card:hover {
            box-shadow: 0 10px 36px rgba(0, 0, 0, 0.12);
            transform: translateY(-2px);
        }
        .analysis-card-media {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .analysis-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .analysis-list-card:hover .analysis-card-media img {
            transform: scale(1.04);
        }
        .analysis-card-body {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .analysis-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 10px;
            font-size: 13px;
            color: var(--light-muted);
        }
        .analysis-card-meta .card-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            background: rgba(255, 92, 26, 0.09);
            color: var(--orange);
            font-weight: 600;
            font-size: 12px;
            letter-spacing: 0.04em;
        }
        .analysis-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
            color: var(--light-text);
        }
        .analysis-card-body h3 a:hover {
            color: var(--orange);
        }
        .analysis-card-body .card-desc {
            font-size: 15px;
            line-height: 1.75;
            color: var(--light-muted);
            margin-bottom: 18px;
            flex: 1;
        }
        .card-readmore {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--light-text);
            border-bottom: 2px solid var(--orange);
            align-self: flex-start;
            padding-bottom: 3px;
            transition: var(--transition);
        }
        .card-readmore i {
            font-size: 12px;
            transition: transform 0.3s ease;
        }
        .card-readmore:hover {
            color: var(--orange);
            gap: 12px;
        }
        .card-readmore:hover i {
            transform: translateX(4px);
        }

        /* sidebar */
        .sidebar-widget {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-light);
            padding: 24px 22px;
            margin-bottom: 26px;
            border: 1px solid rgba(0, 0, 0, 0.04);
        }
        .sidebar-widget h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
            color: var(--light-text);
            padding-bottom: 10px;
            border-bottom: 2px solid var(--acid);
        }
        .hot-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .hot-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: var(--transition);
        }
        .hot-list li:last-child {
            border-bottom: none;
        }
        .hot-list li:hover {
            padding-left: 6px;
        }
        .hot-rank {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 700;
            color: rgba(255, 92, 26, 0.35);
            line-height: 1;
            min-width: 36px;
            flex-shrink: 0;
        }
        .hot-rank.top1 {
            color: var(--orange);
            font-size: 32px;
        }
        .hot-link {
            font-size: 14px;
            font-weight: 500;
            line-height: 1.5;
            color: var(--light-text);
            transition: var(--transition);
        }
        .hot-link:hover {
            color: var(--orange);
        }
        .sidebar-data-card {
            background: var(--coal);
            border-radius: var(--radius-lg);
            padding: 22px;
            color: var(--dark-text);
            margin-bottom: 26px;
        }
        .sidebar-data-card .data-number {
            font-family: var(--font-display);
            font-size: 42px;
            font-weight: 700;
            color: var(--acid);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .sidebar-data-card .data-label {
            font-size: 13px;
            color: var(--dark-muted);
            margin-bottom: 16px;
        }
        .sidebar-data-card .data-trend {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--acid);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            padding: 5px 12px;
            border-radius: 14px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(0, 0, 0, 0.04);
            color: var(--light-muted);
            transition: var(--transition);
        }
        .tag-cloud a:hover {
            background: var(--acid-dim);
            color: var(--orange);
        }

        /* ============ deep dive section ============ */
        .deep-dive {
            background: #FFFFFF;
            padding: 72px 0;
            border-top: 1px solid rgba(0, 0, 0, 0.04);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
        }
        .deep-dive .dive-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            margin-bottom: 28px;
        }
        .deep-dive .dive-image img {
            width: 100%;
            aspect-ratio: 16/7;
            object-fit: cover;
        }
        .deep-dive h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--light-text);
        }
        .deep-dive p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--light-muted);
            margin-bottom: 14px;
        }
        .deep-dive p strong {
            color: var(--light-text);
        }

        /* ============ data panel ============ */
        .data-panel-section {
            background: var(--coal);
            color: var(--dark-text);
            padding: 72px 0;
        }
        .data-panel-section .section-title {
            color: var(--dark-text);
        }
        .data-panel-section .section-desc {
            color: var(--dark-muted);
        }
        .data-stat-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 36px;
        }
        .data-stat-card {
            background: var(--coal-light);
            border: 1px solid rgba(198, 255, 61, 0.12);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            text-align: left;
            transition: var(--transition);
        }
        .data-stat-card:hover {
            border-color: rgba(198, 255, 61, 0.4);
            background: rgba(22, 27, 31, 0.9);
        }
        .data-stat-card .stat-number {
            font-family: var(--font-display);
            font-size: 40px;
            font-weight: 700;
            color: var(--acid);
            line-height: 1.1;
            margin-bottom: 4px;
        }
        .data-stat-card .stat-number.orange-num {
            color: var(--orange);
        }
        .data-stat-card .stat-label {
            font-size: 13px;
            color: var(--dark-muted);
            line-height: 1.4;
        }

        /* ============ analyst view ============ */
        .analyst-section {
            background: var(--soft-bg);
            padding: 72px 0;
        }
        .analyst-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-light);
            padding: 30px 28px;
            border-left: 5px solid var(--acid);
            transition: var(--transition);
        }
        .analyst-card:hover {
            box-shadow: 0 10px 32px rgba(0, 0, 0, 0.1);
        }
        .analyst-card .quote-mark {
            font-size: 50px;
            font-weight: 700;
            color: rgba(198, 255, 61, 0.5);
            line-height: 1;
            margin-bottom: 8px;
            font-family: Georgia, serif;
        }
        .analyst-card p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--light-text);
            margin-bottom: 16px;
        }
        .analyst-card .analyst-name {
            font-size: 14px;
            font-weight: 700;
            color: var(--orange);
            letter-spacing: 0.04em;
        }

        /* ============ CTA ============ */
        .cta-section {
            background: var(--coal);
            color: var(--dark-text);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '333';
            position: absolute;
            right: -40px;
            top: 50%;
            transform: translateY(-50%);
            font-family: var(--font-display);
            font-size: 240px;
            font-weight: 700;
            color: rgba(198, 255, 61, 0.05);
            z-index: 1;
            pointer-events: none;
            line-height: 1;
        }
        .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-content h3 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            margin-bottom: 14px;
            color: var(--dark-text);
        }
        .cta-content p {
            font-size: 16px;
            line-height: 1.75;
            color: var(--dark-muted);
            max-width: 600px;
            margin-bottom: 28px;
        }
        .cta-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.04em;
            background: var(--orange);
            color: #FFFFFF;
            border: none;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(255, 92, 26, 0.35);
            min-height: 44px;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: #E04E0F;
            box-shadow: 0 8px 24px rgba(255, 92, 26, 0.5);
            transform: translateY(-2px);
            color: #FFFFFF;
        }
        .btn-secondary-light {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.04em;
            background: transparent;
            color: var(--dark-text);
            border: 1px solid rgba(198, 255, 61, 0.5);
            transition: var(--transition);
            min-height: 44px;
            white-space: nowrap;
        }
        .btn-secondary-light:hover {
            background: var(--acid);
            color: var(--coal);
            border-color: var(--acid);
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--soft-bg);
            padding: 72px 0 88px;
        }
        .faq-section .accordion {
            list-style: none;
            margin: 0;
            padding: 0;
            border: var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-light);
        }
        .faq-section .accordion-item {
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            background: #FFFFFF;
        }
        .faq-section .accordion-item:last-child {
            border-bottom: none;
        }
        .faq-section .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            color: var(--light-text);
            background: #FFFFFF;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
            text-align: left;
            position: relative;
            font-family: var(--font-chinese);
        }
        .faq-section .accordion-title:hover {
            color: var(--orange);
            background: rgba(255, 92, 26, 0.03);
        }
        .faq-section .accordion-title .faq-icon {
            font-size: 20px;
            font-weight: 300;
            color: var(--orange);
            flex-shrink: 0;
            transition: transform 0.3s ease;
            line-height: 1;
        }
        .faq-section .accordion-item.is-active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-section .accordion-content {
            padding: 0 24px 20px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--light-muted);
            border-left: 4px solid var(--acid);
            margin-left: 20px;
            display: none;
        }
        .faq-section .accordion-item.is-active .accordion-content {
            display: block;
        }
        .faq-section .accordion-item.is-active .accordion-title {
            background: rgba(198, 255, 61, 0.04);
            color: var(--orange);
        }

        /* ============ footer ============ */
        .site-footer {
            background: var(--coal);
            color: var(--dark-text);
            padding: 48px 0 32px;
            border-top: 1px solid rgba(198, 255, 61, 0.15);
        }
        .footer-top {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            margin-bottom: 28px;
        }
        .footer-brand {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--acid);
            text-transform: uppercase;
        }
        .footer-links {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 14px;
        }
        .footer-links a {
            color: var(--dark-muted);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--acid);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
            padding-top: 20px;
            border-top: 1px solid rgba(198, 255, 61, 0.08);
            font-size: 13px;
            color: var(--dark-muted);
        }
        .legal-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
        }
        .legal-links a {
            color: var(--dark-muted);
            transition: var(--transition);
        }
        .legal-links a:hover {
            color: var(--acid);
        }
        .legal-links span {
            white-space: nowrap;
        }

        /* ============ responsive ============ */
        @media screen and (max-width: 1024px) {
            .masthead-nav {
                gap: 16px;
                font-size: 13px;
            }
            .data-stat-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .deep-dive .dive-image img {
                aspect-ratio: 16/9;
            }
        }
        @media screen and (max-width: 768px) {
            .site-header .grid-container {
                flex-wrap: wrap;
                min-height: 60px;
                position: relative;
            }
            .masthead-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--coal);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 12px 24px 20px;
                border-bottom: 1px solid rgba(198, 255, 61, 0.2);
                box-shadow: var(--shadow-dark);
                z-index: 99;
            }
            .masthead-nav.open {
                display: flex;
            }
            .masthead-nav a {
                padding: 12px 0;
                font-size: 16px;
                width: 100%;
                border-bottom: 1px solid rgba(198, 255, 61, 0.08);
            }
            .masthead-nav a:last-child {
                border-bottom: none;
            }
            .masthead-nav a::after {
                display: none;
            }
            .hamburger-btn {
                display: block;
            }
            .masthead-brand a {
                font-size: 24px;
            }
            .masthead-divider {
                height: 20px;
            }
            .cat-hero {
                padding: 48px 0 56px;
            }
            .cat-hero h1 {
                font-size: 28px;
            }
            .cat-hero .hero-desc {
                font-size: 15px;
            }
            .filter-bar .filter-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .analysis-main {
                padding: 36px 0 48px;
            }
            .analysis-list-card {
                flex-direction: column;
            }
            .analysis-card-media {
                aspect-ratio: 16/9;
            }
            .data-stat-row {
                grid-template-columns: 1fr;
            }
            .data-stat-card .stat-number {
                font-size: 32px;
            }
            .deep-dive {
                padding: 48px 0;
            }
            .deep-dive .dive-image img {
                aspect-ratio: 16/10;
            }
            .analyst-section,
            .cta-section,
            .faq-section {
                padding: 48px 0 56px;
            }
            .cta-section::before {
                font-size: 120px;
                right: -20px;
            }
            .footer-top {
                flex-direction: column;
                gap: 16px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .legal-links {
                gap: 10px;
                font-size: 12px;
            }
            .btn-primary,
            .btn-secondary-light {
                width: 100%;
                justify-content: center;
                min-height: 48px;
            }
            .section-pad {
                padding: 48px 0;
            }
        }
        @media screen and (max-width: 520px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .cat-hero h1 {
                font-size: 24px;
            }
            .analysis-card-body {
                padding: 16px 18px 20px;
            }
            .analysis-card-body h3 {
                font-size: 17px;
            }
            .analysis-card-body .card-desc {
                font-size: 14px;
            }
            .sidebar-widget {
                padding: 18px 16px;
            }
            .hot-rank {
                font-size: 22px;
                min-width: 28px;
            }
            .hot-rank.top1 {
                font-size: 26px;
            }
            .data-stat-card {
                padding: 16px 14px;
            }
            .data-stat-card .stat-number {
                font-size: 28px;
            }
            .analyst-card {
                padding: 20px 18px;
            }
            .faq-section .accordion-title {
                padding: 16px 18px;
                font-size: 14px;
            }
            .faq-section .accordion-content {
                margin-left: 12px;
                padding: 0 16px 16px;
                font-size: 14px;
            }
        }

/* roulang page: category4 */
:root {
            --coal: #0C0F12;
            --coal-light: #161B1F;
            --acid: #C6FF3D;
            --acid-dim: rgba(198, 255, 61, 0.15);
            --orange: #FF5C1A;
            --soft-bg: #F4F6F3;
            --dark-text: #F7F7F0;
            --dark-muted: #9CA3A8;
            --light-text: #1A1D20;
            --light-muted: #6E7479;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.35);
            --border-light: 1px solid rgba(0, 0, 0, 0.06);
            --border-dark: 1px solid rgba(198, 255, 61, 0.15);
            --font-chinese: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-display: 'Bebas Neue', 'Oswald', 'Noto Sans SC', sans-serif;
            --transition: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-chinese);
            font-size: 16px;
            line-height: 1.7;
            color: var(--light-text);
            background: var(--soft-bg);
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--acid);
            outline-offset: 2px;
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding: 72px 0;
        }
        .section-pad-sm {
            padding: 52px 0;
        }
        .section-pad-xs {
            padding: 36px 0;
        }

        .text-muted-on-dark {
            color: var(--dark-muted);
        }
        .text-muted-on-light {
            color: var(--light-muted);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--orange);
            margin-bottom: 12px;
        }
        .section-label.acid {
            color: var(--acid);
        }
        .section-title {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 0;
        }

        /* ============ Masthead Navigation ============ */
        .masthead {
            background: var(--coal);
            border-bottom: 1px solid rgba(198, 255, 61, 0.12);
            position: sticky;
            top: 0;
            z-index: 60;
            padding: 16px 0;
        }
        .masthead-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px 20px;
        }
        .masthead-brand {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .masthead-brand a {
            font-family: var(--font-display);
            font-size: 30px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--dark-text);
            line-height: 1;
            text-transform: uppercase;
            position: relative;
        }
        .masthead-brand a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 0;
            height: 3px;
            background: var(--acid);
            transition: width 0.3s ease;
        }
        .masthead-brand a:hover::after {
            width: 100%;
        }
        .masthead-divider {
            width: 2px;
            height: 28px;
            background: rgba(198, 255, 61, 0.55);
            flex-shrink: 0;
        }
        .masthead-nav {
            display: flex;
            align-items: center;
            gap: 22px;
            flex-wrap: wrap;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.04em;
        }
        .masthead-nav a {
            color: var(--dark-muted);
            position: relative;
            padding: 4px 0;
            transition: var(--transition);
            white-space: nowrap;
        }
        .masthead-nav a:hover,
        .masthead-nav a.active {
            color: var(--acid);
        }
        .masthead-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -3px;
            width: 0;
            height: 2px;
            background: var(--acid);
            transition: width 0.3s ease;
        }
        .masthead-nav a:hover::after,
        .masthead-nav a.active::after {
            width: 100%;
        }
        .hamburger-btn {
            display: none;
            background: transparent;
            border: none;
            color: var(--dark-text);
            font-size: 26px;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            line-height: 1;
        }
        .hamburger-btn:hover {
            background: var(--acid-dim);
            color: var(--acid);
        }

        /* ============ Category Hero / Banner ============ */
        .cat-hero {
            background: var(--coal);
            color: var(--dark-text);
            position: relative;
            overflow: hidden;
            padding: 84px 0 96px;
            min-height: 380px;
            display: flex;
            align-items: center;
        }
        .cat-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.15;
            z-index: 1;
        }
        .cat-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(12, 15, 18, 0.72) 0%, rgba(12, 15, 18, 0.93) 100%);
            z-index: 2;
        }
        .cat-hero-content {
            position: relative;
            z-index: 3;
        }
        .cat-hero .section-label {
            color: var(--acid);
        }
        .cat-hero-title {
            font-size: clamp(34px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.18;
            margin-bottom: 18px;
            letter-spacing: -0.02em;
            max-width: 740px;
        }
        .cat-hero-desc {
            font-size: 17px;
            line-height: 1.8;
            max-width: 640px;
            color: var(--dark-muted);
            margin-bottom: 28px;
        }
        .cat-hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .cat-hero-tag {
            display: inline-block;
            padding: 6px 14px;
            background: var(--acid-dim);
            color: var(--acid);
            border: 1px solid rgba(198, 255, 61, 0.3);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
        }
        .cat-hero-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .cat-hero-stat {
            text-align: left;
        }
        .cat-hero-stat-num {
            font-family: var(--font-display);
            font-size: 30px;
            color: var(--orange);
            line-height: 1;
        }
        .cat-hero-stat-label {
            font-size: 12px;
            color: var(--dark-muted);
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        /* ============ Breadcrumb ============ */
        .breadcrumb-bar {
            background: var(--soft-bg);
            border-bottom: var(--border-light);
            padding: 16px 0;
        }
        .breadcrumb-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--light-muted);
        }
        .breadcrumb-list li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-list li+li::before {
            content: '/';
            color: var(--light-muted);
            margin-right: 4px;
        }
        .breadcrumb-list a {
            color: var(--light-muted);
        }
        .breadcrumb-list a:hover {
            color: var(--orange);
        }
        .breadcrumb-list .current {
            color: var(--light-text);
            font-weight: 600;
        }

        /* ============ Buttons ============ */
        .btn-primary {
            display: inline-block;
            background: var(--orange);
            color: #fff;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.04em;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
            border: 2px solid var(--orange);
        }
        .btn-primary:hover {
            background: var(--coal);
            color: var(--acid);
            border-color: var(--coal);
        }
        .btn-acid {
            display: inline-block;
            background: var(--acid);
            color: var(--coal);
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.04em;
            border: 2px solid var(--acid);
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
        }
        .btn-acid:hover {
            background: transparent;
            color: var(--acid);
        }
        .btn-ghost-light {
            display: inline-block;
            background: transparent;
            color: var(--dark-text);
            padding: 12px 26px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.04em;
            border: 1px solid rgba(247, 247, 240, 0.4);
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
        }
        .btn-ghost-light:hover {
            background: var(--acid);
            color: var(--coal);
            border-color: var(--acid);
        }
        .btn-ghost-dark {
            display: inline-block;
            background: transparent;
            color: var(--light-text);
            padding: 12px 26px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.04em;
            border: 1px solid rgba(26, 29, 32, 0.3);
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
        }
        .btn-ghost-dark:hover {
            background: var(--orange);
            color: #fff;
            border-color: var(--orange);
        }

        /* ============ Feature Cards / Mixed Grid ============ */
        .feature-grid-section {
            background: var(--soft-bg);
        }
        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-light);
            border: var(--border-light);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .feature-card:hover {
            box-shadow: 0 10px 36px rgba(0, 0, 0, 0.14);
            transform: translateY(-4px);
        }
        .feature-card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }
        .feature-card-img-wrap.tall {
            aspect-ratio: 4/3;
        }
        .feature-card-img-wrap.short {
            aspect-ratio: 16/10;
        }
        .feature-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .feature-card:hover .feature-card-img-wrap img {
            transform: scale(1.04);
        }
        .feature-card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--orange);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.06em;
        }
        .feature-card-badge.acid {
            background: var(--acid);
            color: var(--coal);
        }
        .feature-card-body {
            padding: 22px 24px 26px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .feature-card-tag {
            font-size: 12px;
            font-weight: 700;
            color: var(--orange);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .feature-card-title {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 10px;
            color: var(--light-text);
        }
        .feature-card-excerpt {
            font-size: 14px;
            color: var(--light-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .feature-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--light-muted);
            border-top: 1px solid rgba(0, 0, 0, 0.06);
            padding-top: 14px;
        }
        .feature-card-meta i {
            color: var(--orange);
        }

        /* ============ Lab Data Panel ============ */
        .lab-panel {
            background: var(--coal);
            color: var(--dark-text);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .lab-panel::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(198, 255, 61, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .lab-panel .section-title {
            color: var(--dark-text);
        }
        .lab-panel .section-desc {
            color: var(--dark-muted);
        }
        .lab-data-card {
            background: var(--coal-light);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            text-align: center;
            transition: var(--transition);
            height: 100%;
        }
        .lab-data-card:hover {
            border-color: var(--acid);
            transform: translateY(-3px);
        }
        .lab-data-num {
            font-family: var(--font-display);
            font-size: 42px;
            color: var(--acid);
            line-height: 1;
            margin-bottom: 8px;
        }
        .lab-data-num.orange {
            color: var(--orange);
        }
        .lab-data-label {
            font-size: 13px;
            color: var(--dark-muted);
            letter-spacing: 0.06em;
            text-transform: uppercase;
        }
        .lab-data-desc {
            font-size: 13px;
            color: var(--dark-muted);
            margin-top: 8px;
            line-height: 1.6;
        }

        /* ============ Deep Review Article ============ */
        .deep-review {
            background: var(--soft-bg);
        }
        .deep-review-container {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-light);
            border: var(--border-light);
            overflow: hidden;
        }
        .deep-review-img {
            width: 100%;
            aspect-ratio: 21/9;
            object-fit: cover;
        }
        .deep-review-body {
            padding: 36px 40px 44px;
        }
        .deep-review-body h2 {
            font-size: 24px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 18px;
        }
        .deep-review-body p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--light-text);
            margin-bottom: 18px;
        }
        .deep-review-body blockquote {
            border-left: 4px solid var(--orange);
            padding-left: 20px;
            margin: 24px 0;
            font-size: 17px;
            font-weight: 600;
            color: var(--light-text);
            line-height: 1.75;
        }

        /* ============ Comparison Table ============ */
        .compare-section {
            background: #fff;
        }
        .compare-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid rgba(0, 0, 0, 0.08);
            box-shadow: var(--shadow-light);
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 720px;
        }
        .compare-table thead th {
            background: var(--coal);
            color: var(--acid);
            padding: 16px 18px;
            text-align: left;
            font-weight: 700;
            letter-spacing: 0.04em;
            white-space: nowrap;
            border-bottom: 2px solid var(--acid);
        }
        .compare-table tbody td {
            padding: 14px 18px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            color: var(--light-text);
            vertical-align: middle;
        }
        .compare-table tbody tr:hover td {
            background: rgba(198, 255, 61, 0.06);
        }
        .compare-table .score-cell {
            font-weight: 700;
            color: var(--orange);
            font-family: var(--font-display);
            font-size: 18px;
        }
        .compare-table .product-name {
            font-weight: 700;
        }
        .compare-table tfoot td {
            padding: 12px 18px;
            font-size: 12px;
            color: var(--light-muted);
            border-top: 2px solid rgba(0, 0, 0, 0.08);
        }

        /* ============ Expert Team ============ */
        .expert-section {
            background: var(--soft-bg);
        }
        .expert-card {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-light);
            border: var(--border-light);
            padding: 28px 26px;
            text-align: center;
            transition: var(--transition);
            height: 100%;
        }
        .expert-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.12);
        }
        .expert-avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            margin: 0 auto 16px;
            background: var(--coal);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            color: var(--acid);
        }
        .expert-name {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .expert-role {
            font-size: 13px;
            color: var(--orange);
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .expert-bio {
            font-size: 14px;
            color: var(--light-muted);
            line-height: 1.7;
        }

        /* ============ CTA ============ */
        .cta-section {
            background: var(--coal);
            color: var(--dark-text);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            left: -80px;
            bottom: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(255, 92, 26, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .section-title {
            color: var(--dark-text);
        }
        .cta-section .section-desc {
            color: var(--dark-muted);
        }
        .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 24px;
        }
        .cta-form input[type="email"],
        .cta-form input[type="text"] {
            flex: 1;
            min-width: 240px;
            background: var(--coal-light);
            border: 1px solid rgba(247, 247, 240, 0.2);
            border-radius: var(--radius-sm);
            padding: 13px 18px;
            font-size: 15px;
            color: var(--dark-text);
            transition: var(--transition);
            font-family: inherit;
        }
        .cta-form input[type="email"]::placeholder,
        .cta-form input[type="text"]::placeholder {
            color: var(--dark-muted);
        }
        .cta-form input[type="email"]:focus,
        .cta-form input[type="text"]:focus {
            border-color: var(--acid);
            outline: none;
            box-shadow: 0 0 0 2px var(--acid-dim);
        }

        /* ============ FAQ Accordion ============ */
        .faq-section {
            background: #fff;
        }
        .faq-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .faq-list .accordion {
            background: transparent;
            border: none;
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .faq-list .accordion-item {
            border: 1px solid rgba(0, 0, 0, 0.1);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            transition: var(--transition);
            list-style: none;
        }
        .faq-list .accordion-item:hover {
            border-color: var(--orange);
        }
        .faq-list .accordion-item.is-active {
            border-left: 4px solid var(--acid);
            border-color: rgba(0, 0, 0, 0.12);
        }
        .faq-list .accordion-title {
            display: block;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 700;
            color: var(--light-text);
            cursor: pointer;
            transition: var(--transition);
            position: relative;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            line-height: 1.5;
        }
        .faq-list .accordion-title::after {
            content: '+';
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 22px;
            font-weight: 400;
            color: var(--orange);
            transition: var(--transition);
        }
        .faq-list .accordion-item.is-active .accordion-title::after {
            content: '\2212';
        }
        .faq-list .accordion-title:hover {
            color: var(--orange);
        }
        .faq-list .accordion-content {
            padding: 0 20px 20px;
            font-size: 15px;
            color: var(--light-muted);
            line-height: 1.8;
            display: none;
        }
        .faq-list .accordion-item.is-active .accordion-content {
            display: block;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--coal);
            color: var(--dark-text);
            padding: 48px 0 32px;
            position: relative;
        }
        .footer-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            padding-bottom: 28px;
            border-bottom: 1px solid rgba(247, 247, 240, 0.12);
            margin-bottom: 24px;
        }
        .footer-brand {
            font-family: var(--font-display);
            font-size: 26px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--acid);
            text-transform: uppercase;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 13px;
        }
        .footer-links a {
            color: var(--dark-muted);
        }
        .footer-links a:hover {
            color: var(--acid);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 12px;
            color: var(--dark-muted);
        }
        .legal-links {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .legal-links a {
            color: var(--dark-muted);
        }
        .legal-links a:hover {
            color: var(--acid);
        }
        .legal-links span {
            color: var(--dark-muted);
        }

        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            .masthead-nav {
                gap: 16px;
                font-size: 13px;
            }
            .masthead-brand a {
                font-size: 26px;
            }
            .cat-hero-title {
                font-size: clamp(28px, 4vw, 38px);
            }
            .deep-review-body {
                padding: 28px 24px 34px;
            }
        }
        @media (max-width: 768px) {
            .masthead-inner {
                flex-direction: row;
                justify-content: space-between;
            }
            .hamburger-btn {
                display: block;
            }
            .masthead-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 16px 0 8px;
                border-top: 1px solid rgba(198, 255, 61, 0.15);
                margin-top: 12px;
            }
            .masthead-nav.is-open {
                display: flex;
            }
            .masthead-nav a {
                font-size: 15px;
                padding: 6px 0;
            }
            .masthead-nav a::after {
                bottom: 0;
            }
            .cat-hero {
                padding: 56px 0 72px;
                min-height: 300px;
            }
            .cat-hero-title {
                font-size: 28px;
            }
            .section-pad {
                padding: 52px 0;
            }
            .lab-panel {
                padding: 52px 0;
            }
            .deep-review-body {
                padding: 22px 18px 28px;
            }
            .deep-review-body h2 {
                font-size: 20px;
            }
            .cta-section {
                padding: 52px 0;
            }
            .cta-form input[type="email"],
            .cta-form input[type="text"] {
                min-width: 100%;
            }
            .footer-top,
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-links {
                gap: 12px;
            }
            .grid-container {
                padding-left: 18px;
                padding-right: 18px;
            }
        }
        @media (max-width: 520px) {
            .masthead-brand a {
                font-size: 22px;
            }
            .masthead-divider {
                height: 20px;
            }
            .cat-hero-title {
                font-size: 24px;
            }
            .cat-hero-stats {
                gap: 16px;
            }
            .cat-hero-stat-num {
                font-size: 24px;
            }
            .feature-card-body {
                padding: 16px 18px 20px;
            }
            .feature-card-title {
                font-size: 17px;
            }
            .compare-table-wrap {
                border-radius: var(--radius-sm);
            }
            .compare-table {
                font-size: 12px;
                min-width: 560px;
            }
            .compare-table thead th,
            .compare-table tbody td {
                padding: 10px 12px;
            }
            .lab-data-num {
                font-size: 32px;
            }
            .btn-primary,
            .btn-acid,
            .btn-ghost-light,
            .btn-ghost-dark {
                padding: 11px 20px;
                font-size: 14px;
            }
            .expert-card {
                padding: 20px 16px;
            }
            .faq-list .accordion-title {
                font-size: 14px;
                padding: 15px 16px;
            }
            .faq-list .accordion-content {
                padding: 0 16px 16px;
                font-size: 14px;
            }
        }

/* roulang page: category5 */
:root {
            --coal: #0C0F12;
            --coal-light: #161B1F;
            --coal-mid: #1D2328;
            --acid: #C6FF3D;
            --acid-dim: rgba(198, 255, 61, 0.15);
            --acid-glow: rgba(198, 255, 61, 0.25);
            --orange: #FF5C1A;
            --orange-dim: rgba(255, 92, 26, 0.15);
            --soft-bg: #F4F6F3;
            --soft-card: #FFFFFF;
            --dark-text: #F7F7F0;
            --dark-muted: #9CA3A8;
            --light-text: #1A1D20;
            --light-muted: #6E7479;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 18px;
            --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-light-hover: 0 12px 36px rgba(0, 0, 0, 0.13);
            --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-dark-hover: 0 14px 44px rgba(0, 0, 0, 0.48);
            --border-light: 1px solid rgba(0, 0, 0, 0.06);
            --border-dark: 1px solid rgba(198, 255, 61, 0.15);
            --font-chinese: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-display: 'Bebas Neue', 'Oswald', 'Noto Sans SC', sans-serif;
            --transition: all 0.25s ease;
            --transition-slow: all 0.45s cubic-bezier(0.22, 1, 0.36, 1);
            --gap-section: 88px;
            --gap-section-md: 64px;
            --gap-section-sm: 48px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-chinese);
            font-size: 16px;
            line-height: 1.7;
            color: var(--light-text);
            background: var(--soft-bg);
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--acid);
            outline-offset: 2px;
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
            margin: 0 auto;
        }

        .section-pad {
            padding: var(--gap-section) 0;
        }

        .section-pad-md {
            padding: var(--gap-section-md) 0;
        }

        .section-pad-sm {
            padding: var(--gap-section-sm) 0;
        }

        .text-muted-on-dark {
            color: var(--dark-muted);
        }

        .text-muted-on-light {
            color: var(--light-muted);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2.5px;
            text-transform: uppercase;
            color: var(--orange);
            margin-bottom: 12px;
            line-height: 1.2;
        }

        .section-label.acid {
            color: var(--acid);
        }

        .section-title {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            color: inherit;
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 0;
            color: var(--light-muted);
        }

        .dark-bg .section-desc {
            color: var(--dark-muted);
        }

        .dark-bg {
            background: var(--coal);
            color: var(--dark-text);
        }

        .light-bg {
            background: var(--soft-bg);
            color: var(--light-text);
        }

        .white-bg {
            background: #FFFFFF;
            color: var(--light-text);
        }

        /* ============ Masthead Navigation ============ */
        .site-header {
            background: var(--coal);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(198, 255, 61, 0.14);
            padding: 14px 0;
            transition: var(--transition);
        }

        .site-header.scrolled {
            padding: 8px 0;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.45);
        }

        .masthead-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: nowrap;
        }

        .masthead-brand {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .masthead-brand a {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--dark-text);
            line-height: 1;
            text-transform: uppercase;
            position: relative;
            display: inline-block;
        }

        .masthead-brand a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 0;
            height: 3px;
            background: var(--acid);
            transition: width 0.3s ease;
        }

        .masthead-brand a:hover::after {
            width: 100%;
        }

        .masthead-divider {
            width: 2px;
            height: 28px;
            background: rgba(198, 255, 61, 0.55);
            flex-shrink: 0;
        }

        .masthead-nav {
            display: flex;
            align-items: center;
            gap: 22px;
            flex-wrap: nowrap;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.04em;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .masthead-nav::-webkit-scrollbar {
            display: none;
        }

        .masthead-nav a {
            color: var(--dark-muted);
            position: relative;
            padding: 4px 0;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .masthead-nav a:hover,
        .masthead-nav a.active {
            color: var(--acid);
        }

        .masthead-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -3px;
            width: 0;
            height: 2px;
            background: var(--acid);
            transition: width 0.3s ease;
        }

        .masthead-nav a:hover::after,
        .masthead-nav a.active::after {
            width: 100%;
        }

        .hamburger-btn {
            display: none;
            background: transparent;
            border: none;
            color: var(--dark-text);
            font-size: 26px;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .hamburger-btn:hover {
            background: var(--acid-dim);
            color: var(--acid);
        }

        /* ============ Category Hero ============ */
        .category-hero {
            background: var(--coal);
            color: var(--dark-text);
            position: relative;
            overflow: hidden;
            min-height: 580px;
            display: flex;
            align-items: flex-end;
            padding: 60px 0 80px;
        }

        .category-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: 0.16;
            z-index: 1;
        }

        .category-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(12, 15, 18, 0.68) 0%, rgba(12, 15, 18, 0.95) 100%);
            z-index: 2;
        }

        .category-hero-content {
            position: relative;
            z-index: 3;
            width: 100%;
        }

        .category-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--dark-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .category-breadcrumb a {
            color: var(--dark-muted);
            transition: var(--transition);
        }

        .category-breadcrumb a:hover {
            color: var(--acid);
        }

        .category-breadcrumb .separator {
            color: rgba(198, 255, 61, 0.4);
        }

        .category-breadcrumb .current {
            color: var(--acid);
        }

        .category-hero h1 {
            font-size: clamp(36px, 5.5vw, 56px);
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.03em;
            margin-bottom: 16px;
            color: var(--dark-text);
        }

        .category-hero .hero-accent {
            color: var(--acid);
        }

        .category-hero .hero-sub {
            font-size: 18px;
            line-height: 1.8;
            color: var(--dark-muted);
            max-width: 660px;
            margin-bottom: 24px;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 100px;
            background: var(--acid-dim);
            color: var(--acid);
            border: 1px solid rgba(198, 255, 61, 0.25);
            letter-spacing: 0.04em;
        }

        .hero-badge.orange {
            background: var(--orange-dim);
            color: var(--orange);
            border-color: rgba(255, 92, 26, 0.3);
        }

        .hero-badge i {
            font-size: 12px;
        }

        /* ============ Data Overview ============ */
        .data-overview {
            background: var(--coal-light);
            color: var(--dark-text);
        }

        .data-overview-grid {
            display: grid;
            grid-template-columns: 1.2fr 2fr;
            gap: 48px;
            align-items: start;
        }

        .data-overview-intro h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 14px;
            color: var(--dark-text);
        }

        .data-overview-intro p {
            color: var(--dark-muted);
            font-size: 16px;
            line-height: 1.85;
            margin-bottom: 0;
        }

        .data-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-stat-cell {
            background: var(--coal);
            border: 1px solid rgba(198, 255, 61, 0.12);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: var(--transition);
        }

        .data-stat-cell:hover {
            border-color: rgba(198, 255, 61, 0.35);
            transform: translateY(-3px);
            box-shadow: var(--shadow-dark);
        }

        .data-stat-number {
            font-family: var(--font-display);
            font-size: 38px;
            font-weight: 700;
            line-height: 1.1;
            color: var(--acid);
            letter-spacing: 0.04em;
        }

        .data-stat-number.orange-num {
            color: var(--orange);
        }

        .data-stat-label {
            font-size: 13px;
            color: var(--dark-muted);
            margin-top: 6px;
            letter-spacing: 0.05em;
        }

        /* ============ Ranking & Table Mixed ============ */
        .ranking-section {
            background: var(--soft-bg);
        }

        .ranking-section .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .ranking-tabs {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .ranking-tab {
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 600;
            border-radius: 100px;
            background: #FFFFFF;
            color: var(--light-muted);
            border: 1px solid rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            letter-spacing: 0.03em;
        }

        .ranking-tab:hover {
            border-color: var(--orange);
            color: var(--orange);
        }

        .ranking-tab.active {
            background: var(--coal);
            color: var(--acid);
            border-color: var(--coal);
        }

        .ranking-table-wrap {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            border: var(--border-light);
        }

        .ranking-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
        }

        .ranking-table thead {
            background: var(--coal);
            color: var(--dark-muted);
            font-size: 13px;
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }

        .ranking-table thead th {
            padding: 16px 18px;
            text-align: left;
            font-weight: 600;
            border-bottom: 2px solid var(--acid);
            white-space: nowrap;
        }

        .ranking-table tbody tr {
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: var(--transition);
        }

        .ranking-table tbody tr:hover {
            background: rgba(198, 255, 61, 0.06);
        }

        .ranking-table tbody tr:last-child {
            border-bottom: none;
        }

        .ranking-table tbody td {
            padding: 14px 18px;
            color: var(--light-text);
            font-weight: 500;
        }

        .ranking-position {
            font-family: var(--font-display);
            font-size: 20px;
            font-weight: 700;
            color: var(--orange);
            letter-spacing: 0.04em;
            min-width: 40px;
        }

        .ranking-position.top-pos {
            color: var(--acid);
            -webkit-text-stroke: 1px var(--coal);
        }

        .team-name-cell {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            white-space: nowrap;
        }

        .team-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .team-dot.blue-dot {
            background: #4A90D9;
        }
        .team-dot.red-dot {
            background: #D94A4A;
        }
        .team-dot.green-dot {
            background: #4AD9A0;
        }
        .team-dot.yellow-dot {
            background: #D9C84A;
        }
        .team-dot.purple-dot {
            background: #9A4AD9;
        }
        .team-dot.orange-dot {
            background: #FF7A4A;
        }

        .team-stat-up {
            color: #2E9A5E;
            font-weight: 700;
        }

        .team-stat-down {
            color: #C94A4A;
            font-weight: 700;
        }

        .team-stat-flat {
            color: var(--light-muted);
            font-weight: 500;
        }

        /* ============ Deep Profile Cards ============ */
        .profile-deep-section {
            background: var(--coal);
            color: var(--dark-text);
        }

        .profile-deep-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .profile-deep-card {
            background: var(--coal-mid);
            border: 1px solid rgba(198, 255, 61, 0.1);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
        }

        .profile-deep-card:hover {
            border-color: rgba(198, 255, 61, 0.3);
            box-shadow: var(--shadow-dark-hover);
            transform: translateY(-4px);
        }

        .profile-card-image {
            height: 220px;
            overflow: hidden;
            position: relative;
        }

        .profile-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-slow);
        }

        .profile-deep-card:hover .profile-card-image img {
            transform: scale(1.05);
        }

        .profile-card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(12, 15, 18, 0.1) 0%, rgba(12, 15, 18, 0.65) 100%);
        }

        .profile-card-image .team-badge-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 3;
            background: var(--orange);
            color: var(--coal);
            font-weight: 700;
            font-size: 12px;
            padding: 5px 12px;
            border-radius: 100px;
            letter-spacing: 0.05em;
        }

        .profile-card-body {
            padding: 24px 26px 28px;
        }

        .profile-card-body h3 {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 10px;
            color: var(--dark-text);
            letter-spacing: -0.01em;
        }

        .profile-card-body .profile-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 14px;
            font-size: 13px;
            color: var(--dark-muted);
        }

        .profile-card-body .profile-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .profile-card-body .profile-meta i {
            color: var(--acid);
            font-size: 12px;
        }

        .profile-card-body p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--dark-muted);
            margin-bottom: 16px;
        }

        .profile-stats-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            padding-top: 14px;
            border-top: 1px solid rgba(198, 255, 61, 0.1);
        }

        .profile-stat-item {
            font-size: 13px;
            color: var(--dark-muted);
        }

        .profile-stat-item strong {
            display: block;
            font-family: var(--font-display);
            font-size: 18px;
            font-weight: 700;
            color: var(--acid);
            letter-spacing: 0.04em;
            margin-top: 2px;
        }

        /* ============ Player Snapshot ============ */
        .player-snapshot-section {
            background: var(--soft-bg);
        }

        .player-snapshot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .player-snapshot-card {
            background: #FFFFFF;
            border: var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-light);
        }

        .player-snapshot-card:hover {
            box-shadow: var(--shadow-light-hover);
            transform: translateY(-3px);
            border-color: rgba(255, 92, 26, 0.2);
        }

        .player-snapshot-img {
            height: 190px;
            overflow: hidden;
        }

        .player-snapshot-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-slow);
        }

        .player-snapshot-card:hover .player-snapshot-img img {
            transform: scale(1.04);
        }

        .player-snapshot-body {
            padding: 20px 22px 24px;
        }

        .player-snapshot-body h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--light-text);
        }

        .player-snapshot-body .player-team {
            font-size: 13px;
            color: var(--orange);
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        .player-snapshot-body p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--light-muted);
            margin-bottom: 14px;
        }

        .player-mini-stats {
            display: flex;
            gap: 14px;
            font-size: 12px;
            color: var(--light-muted);
            border-top: 1px solid rgba(0, 0, 0, 0.05);
            padding-top: 12px;
        }

        .player-mini-stats span strong {
            color: var(--light-text);
            font-weight: 700;
            margin-left: 3px;
        }

        /* ============ Season Comparison Chart ============ */
        .season-chart-section {
            background: #FFFFFF;
        }

        .season-chart-grid {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 40px;
            align-items: center;
        }

        .season-chart-text h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 14px;
            color: var(--light-text);
        }

        .season-chart-text p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--light-muted);
            margin-bottom: 18px;
        }

        .chart-legend {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--light-muted);
        }

        .chart-legend span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .legend-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .legend-dot.acid-dot {
            background: var(--acid);
        }
        .legend-dot.orange-dot {
            background: var(--orange);
        }
        .legend-dot.gray-dot {
            background: #9CA3A8;
        }

        .chart-visual {
            background: var(--coal);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-dark);
            border: 1px solid rgba(198, 255, 61, 0.1);
        }

        .chart-visual h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--dark-text);
            margin-bottom: 20px;
            letter-spacing: 0.05em;
        }

        .chart-bar-row {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
        }

        .chart-bar-row:last-child {
            margin-bottom: 0;
        }

        .chart-bar-label {
            font-size: 13px;
            color: var(--dark-muted);
            min-width: 70px;
            font-weight: 500;
        }

        .chart-bar-track {
            flex: 1;
            height: 22px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 100px;
            overflow: hidden;
            position: relative;
        }

        .chart-bar-fill {
            height: 100%;
            border-radius: 100px;
            transition: var(--transition-slow);
            display: flex;
            align-items: center;
            justify-content: flex-end;
            padding-right: 8px;
            font-size: 11px;
            font-weight: 700;
            color: var(--coal);
            letter-spacing: 0.03em;
        }

        .chart-bar-fill.acid-fill {
            background: var(--acid);
        }

        .chart-bar-fill.orange-fill {
            background: var(--orange);
        }

        .chart-bar-fill.gray-fill {
            background: #5A6268;
            color: #FFFFFF;
        }

        /* ============ Methodology ============ */
        .methodology-section {
            background: var(--coal-light);
            color: var(--dark-text);
        }

        .methodology-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .methodology-card {
            background: var(--coal);
            border: 1px solid rgba(198, 255, 61, 0.1);
            border-radius: var(--radius-md);
            padding: 26px 24px;
            transition: var(--transition);
        }

        .methodology-card:hover {
            border-color: rgba(198, 255, 61, 0.3);
            box-shadow: var(--shadow-dark);
        }

        .methodology-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: var(--acid-dim);
            color: var(--acid);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .methodology-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark-text);
            margin-bottom: 8px;
        }

        .methodology-card p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--dark-muted);
            margin-bottom: 0;
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--soft-bg);
        }

        .faq-wrap {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            background: #FFFFFF;
            border: 1px solid rgba(0, 0, 0, 0.06);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(255, 92, 26, 0.2);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            color: var(--light-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            text-align: left;
            font-family: inherit;
            transition: var(--transition);
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--coal);
            color: var(--acid);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-question:hover .faq-icon {
            background: var(--orange);
            color: var(--coal);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            border-left: 4px solid transparent;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
            border-left-color: var(--acid);
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--acid);
            color: var(--coal);
            transform: rotate(45deg);
        }

        .faq-answer p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--light-muted);
            margin-bottom: 0;
        }

        /* ============ CTA ============ */
        .cta-section {
            background: var(--coal);
            color: var(--dark-text);
            position: relative;
            overflow: hidden;
            padding: 72px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.08;
            z-index: 1;
        }

        .cta-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: clamp(26px, 3.5vw, 36px);
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .cta-content p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--dark-muted);
            margin-bottom: 28px;
        }

        .btn-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-block;
            padding: 14px 30px;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            background: var(--orange);
            color: var(--coal);
            border: 2px solid var(--orange);
            letter-spacing: 0.04em;
            transition: var(--transition);
            text-align: center;
            min-width: 160px;
        }

        .btn-primary:hover {
            background: var(--coal);
            color: var(--acid);
            border-color: var(--acid);
            transform: translateY(-2px);
            box-shadow: var(--shadow-dark);
        }

        .btn-secondary {
            display: inline-block;
            padding: 14px 30px;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            background: transparent;
            color: var(--dark-text);
            border: 2px solid rgba(198, 255, 61, 0.4);
            letter-spacing: 0.04em;
            transition: var(--transition);
            text-align: center;
            min-width: 160px;
        }

        .btn-secondary:hover {
            background: var(--acid);
            color: var(--coal);
            border-color: var(--acid);
            transform: translateY(-2px);
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--coal);
            color: var(--dark-muted);
            padding: 48px 0 32px;
            border-top: 1px solid rgba(198, 255, 61, 0.1);
            font-size: 14px;
        }

        .footer-top {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            padding-bottom: 28px;
            border-bottom: 1px solid rgba(198, 255, 61, 0.1);
            margin-bottom: 24px;
        }

        .footer-brand {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--dark-text);
            text-transform: uppercase;
            line-height: 1;
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
        }

        .footer-links a {
            color: var(--dark-muted);
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--acid);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--dark-muted);
        }

        .legal-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
        }

        .legal-links a {
            color: var(--dark-muted);
            transition: var(--transition);
        }

        .legal-links a:hover {
            color: var(--acid);
        }

        .legal-links span {
            color: rgba(156, 163, 168, 0.6);
        }

        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            .masthead-nav {
                gap: 16px;
            }

            .data-overview-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .data-stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .profile-deep-grid {
                grid-template-columns: 1fr;
            }

            .player-snapshot-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .season-chart-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .methodology-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .ranking-table thead th,
            .ranking-table tbody td {
                padding: 12px 14px;
            }

            .ranking-table thead th:nth-child(4),
            .ranking-table tbody td:nth-child(4),
            .ranking-table thead th:nth-child(5),
            .ranking-table tbody td:nth-child(5),
            .ranking-table thead th:nth-child(6),
            .ranking-table tbody td:nth-child(6) {
                display: none;
            }
        }

        @media (max-width: 768px) {
            :root {
                --gap-section: 56px;
                --gap-section-md: 40px;
                --gap-section-sm: 32px;
            }

            .masthead-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--coal);
                flex-direction: column;
                padding: 16px 24px 24px;
                border-bottom: 2px solid rgba(198, 255, 61, 0.2);
                box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
                gap: 0;
                align-items: stretch;
            }

            .masthead-nav.open {
                display: flex;
            }

            .masthead-nav a {
                padding: 12px 0;
                font-size: 16px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }

            .masthead-nav a:last-child {
                border-bottom: none;
            }

            .masthead-nav a::after {
                display: none;
            }

            .hamburger-btn {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }

            .masthead-brand a {
                font-size: 26px;
            }

            .masthead-divider {
                height: 22px;
            }

            .category-hero {
                min-height: 420px;
                padding: 40px 0 56px;
            }

            .category-hero h1 {
                font-size: 30px;
            }

            .data-stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .data-stat-cell {
                padding: 18px 14px;
            }

            .data-stat-number {
                font-size: 28px;
            }

            .player-snapshot-grid {
                grid-template-columns: 1fr;
            }

            .methodology-grid {
                grid-template-columns: 1fr;
            }

            .section-title {
                font-size: 24px;
            }

            .season-chart-grid {
                gap: 20px;
            }

            .chart-visual {
                padding: 22px 18px;
            }

            .ranking-table {
                font-size: 13px;
            }

            .ranking-table thead th,
            .ranking-table tbody td {
                padding: 10px 10px;
            }

            .ranking-table thead th:nth-child(3),
            .ranking-table tbody td:nth-child(3),
            .ranking-table thead th:nth-child(4),
            .ranking-table tbody td:nth-child(4),
            .ranking-table thead th:nth-child(5),
            .ranking-table tbody td:nth-child(5),
            .ranking-table thead th:nth-child(6),
            .ranking-table tbody td:nth-child(6) {
                display: none;
            }

            .footer-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 18px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .btn-primary,
            .btn-secondary {
                min-width: 130px;
                padding: 12px 20px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .masthead-brand a {
                font-size: 22px;
            }

            .hamburger-btn {
                font-size: 22px;
                padding: 6px 10px;
            }

            .category-hero h1 {
                font-size: 26px;
            }

            .category-hero .hero-sub {
                font-size: 15px;
            }

            .hero-badges {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .data-stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .data-stat-cell {
                padding: 14px 10px;
            }

            .data-stat-number {
                font-size: 24px;
            }

            .data-stat-label {
                font-size: 11px;
            }

            .ranking-tabs {
                gap: 6px;
            }

            .ranking-tab {
                padding: 6px 12px;
                font-size: 12px;
            }

            .profile-card-image {
                height: 170px;
            }

            .profile-card-body {
                padding: 18px 16px 20px;
            }

            .profile-card-body h3 {
                font-size: 19px;
            }

            .team-name-cell {
                font-size: 13px;
                white-space: normal;
                gap: 6px;
            }

            .ranking-position {
                font-size: 16px;
                min-width: 28px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 14px;
            }

            .faq-answer p {
                font-size: 14px;
            }

            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }

            .btn-group {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
                max-width: 280px;
            }
        }

/* roulang page: category6 */
:root {
            --coal: #0C0F12;
            --coal-light: #161B1F;
            --acid: #C6FF3D;
            --acid-dim: rgba(198, 255, 61, 0.15);
            --orange: #FF5C1A;
            --soft-bg: #F4F6F3;
            --dark-text: #F7F7F0;
            --dark-muted: #9CA3A8;
            --light-text: #1A1D20;
            --light-muted: #6E7479;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.35);
            --border-light: 1px solid rgba(0, 0, 0, 0.06);
            --border-dark: 1px solid rgba(198, 255, 61, 0.15);
            --font-chinese: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-display: 'Bebas Neue', 'Oswald', 'Noto Sans SC', sans-serif;
            --transition: all 0.25s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-chinese);
            font-size: 16px;
            line-height: 1.7;
            color: var(--light-text);
            background: var(--soft-bg);
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--acid);
            outline-offset: 2px;
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-pad {
            padding: 88px 0;
        }

        .section-pad-sm {
            padding: 64px 0;
        }

        .section-pad-xs {
            padding: 48px 0;
        }

        .text-muted-on-dark {
            color: var(--dark-muted);
        }

        .text-muted-on-light {
            color: var(--light-muted);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--orange);
            margin-bottom: 12px;
        }

        .section-label.acid {
            color: var(--acid);
        }

        .section-title {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 0;
        }

        /* ============ 杂志刊头导航 ============ */
        .masthead-header {
            background: var(--coal);
            border-bottom: 1px solid rgba(198, 255, 61, 0.12);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .masthead-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 16px 0;
        }

        .masthead-brand {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .masthead-brand a {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--dark-text);
            line-height: 1;
            text-transform: uppercase;
            position: relative;
        }

        .masthead-brand a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 0;
            height: 3px;
            background: var(--acid);
            transition: width 0.3s ease;
        }

        .masthead-brand a:hover::after {
            width: 100%;
        }

        .masthead-divider {
            width: 2px;
            height: 28px;
            background: rgba(198, 255, 61, 0.55);
            flex-shrink: 0;
        }

        .masthead-nav {
            display: flex;
            align-items: center;
            gap: 22px;
            flex-wrap: wrap;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.04em;
        }

        .masthead-nav a {
            color: var(--dark-muted);
            position: relative;
            padding: 4px 0;
            transition: var(--transition);
            white-space: nowrap;
        }

        .masthead-nav a:hover,
        .masthead-nav a.active {
            color: var(--acid);
        }

        .masthead-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -3px;
            width: 0;
            height: 2px;
            background: var(--acid);
            transition: width 0.3s ease;
        }

        .masthead-nav a:hover::after,
        .masthead-nav a.active::after {
            width: 100%;
        }

        .hamburger-btn {
            display: none;
            background: transparent;
            border: none;
            color: var(--dark-text);
            font-size: 26px;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .hamburger-btn:hover {
            background: var(--acid-dim);
            color: var(--acid);
        }

        .mobile-drawer {
            display: none;
            background: var(--coal);
            border-bottom: 1px solid rgba(198, 255, 61, 0.15);
            padding: 16px 0 24px;
        }

        .mobile-drawer.is-open {
            display: block;
        }

        .mobile-drawer a {
            display: block;
            padding: 12px 24px;
            color: var(--dark-text);
            font-size: 16px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: var(--transition);
        }

        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            color: var(--acid);
            border-left-color: var(--acid);
            background: var(--acid-dim);
        }

        /* ============ 分类刊头 Hero ============ */
        .category-hero {
            background: var(--coal);
            color: var(--dark-text);
            position: relative;
            overflow: hidden;
            padding: 56px 0 64px;
        }

        .category-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.16;
            z-index: 1;
        }

        .category-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(12, 15, 18, 0.78) 0%, rgba(12, 15, 18, 0.94) 100%);
            z-index: 2;
        }

        .category-hero-watermark {
            position: absolute;
            font-family: var(--font-display);
            font-size: 220px;
            font-weight: 700;
            color: rgba(198, 255, 61, 0.03);
            z-index: 1;
            right: -40px;
            top: 50%;
            transform: translateY(-50%);
            pointer-events: none;
            line-height: 1;
            letter-spacing: 0.05em;
        }

        .category-hero .grid-container {
            position: relative;
            z-index: 3;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--dark-muted);
            margin-bottom: 24px;
        }

        .breadcrumb a {
            color: var(--dark-muted);
            transition: var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--acid);
        }

        .breadcrumb .separator {
            color: var(--acid);
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--acid);
            font-weight: 600;
        }

        .category-hero h1 {
            font-family: var(--font-chinese);
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 800;
            line-height: 1.2;
            color: var(--dark-text);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .category-hero h1 .highlight {
            color: var(--acid);
        }

        .category-hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--dark-muted);
            max-width: 760px;
            margin-bottom: 24px;
        }

        .hero-meta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            align-items: center;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--dark-muted);
        }

        .hero-meta-item i {
            color: var(--acid);
            font-size: 14px;
        }

        .hero-meta-item strong {
            color: var(--dark-text);
            font-weight: 700;
            font-size: 18px;
            font-family: var(--font-display);
            letter-spacing: 0.04em;
        }

        /* ============ 筛选排序条 ============ */
        .filter-bar {
            background: #fff;
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 76px;
            z-index: 50;
            padding: 12px 0;
        }

        .filter-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .filter-tabs {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .filter-tab {
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 600;
            border-radius: 100px;
            background: var(--soft-bg);
            color: var(--light-muted);
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1.4;
        }

        .filter-tab:hover {
            color: var(--light-text);
            border-color: rgba(0, 0, 0, 0.12);
        }

        .filter-tab.active {
            background: var(--coal);
            color: var(--acid);
            border-color: var(--coal);
        }

        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .filter-sort label {
            font-size: 13px;
            color: var(--light-muted);
            font-weight: 500;
        }

        .filter-sort select {
            padding: 8px 14px;
            font-size: 13px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(0, 0, 0, 0.14);
            background: #fff;
            color: var(--light-text);
            cursor: pointer;
            font-family: var(--font-chinese);
            transition: var(--transition);
            min-width: 140px;
        }

        .filter-sort select:focus {
            border-color: var(--acid);
            outline: 2px solid var(--acid);
            outline-offset: 0;
        }

        /* ============ 时间线主体 ============ */
        .timeline-section {
            background: var(--soft-bg);
            padding: 72px 0 80px;
        }

        .timeline-header {
            margin-bottom: 48px;
        }

        .timeline-header .section-title {
            color: var(--light-text);
        }

        .timeline {
            position: relative;
            padding-left: 32px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 11px;
            top: 8px;
            bottom: 8px;
            width: 3px;
            background: linear-gradient(180deg, var(--orange) 0%, var(--acid) 50%, var(--orange) 100%);
            border-radius: 3px;
            opacity: 0.7;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 48px;
            padding-left: 28px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: -26px;
            top: 6px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--coal);
            border: 3px solid var(--acid);
            box-shadow: 0 0 0 4px var(--acid-dim);
            z-index: 2;
        }

        .timeline-date {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--orange);
            margin-bottom: 8px;
            text-transform: uppercase;
        }

        .timeline-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-light);
            border: var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }

        .timeline-card:hover {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
            transform: translateY(-3px);
        }

        .timeline-card-inner {
            display: flex;
            align-items: stretch;
            gap: 0;
        }

        .timeline-card-img {
            flex: 0 0 280px;
            min-height: 220px;
            position: relative;
            overflow: hidden;
        }

        .timeline-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .timeline-card:hover .timeline-card-img img {
            transform: scale(1.05);
        }

        .timeline-card-img .season-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--coal);
            color: var(--acid);
            font-size: 12px;
            font-weight: 700;
            padding: 6px 12px;
            border-radius: 100px;
            letter-spacing: 0.04em;
            z-index: 2;
        }

        .timeline-card-body {
            padding: 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .timeline-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--light-text);
            margin-bottom: 10px;
        }

        .timeline-card-body h3 a {
            color: inherit;
            transition: var(--transition);
        }

        .timeline-card-body h3 a:hover {
            color: var(--orange);
        }

        .timeline-card-body p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--light-muted);
            margin-bottom: 16px;
        }

        .read-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 700;
            color: var(--light-text);
            position: relative;
            padding-bottom: 2px;
            border-bottom: 2px solid var(--orange);
            transition: var(--transition);
            align-self: flex-start;
        }

        .read-more-link:hover {
            color: var(--orange);
            gap: 10px;
        }

        .read-more-link i {
            font-size: 13px;
        }

        /* ============ 数据快报面板 ============ */
        .data-insight-section {
            background: var(--coal);
            color: var(--dark-text);
            padding: 72px 0 80px;
        }

        .data-insight-section .section-title {
            color: var(--dark-text);
        }

        .data-insight-section .section-label {
            color: var(--acid);
        }

        .data-insight-section .section-desc {
            color: var(--dark-muted);
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .data-card {
            background: var(--coal-light);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid rgba(198, 255, 61, 0.12);
            transition: var(--transition);
        }

        .data-card:hover {
            border-color: rgba(198, 255, 61, 0.35);
            box-shadow: var(--shadow-dark);
        }

        .data-number {
            font-family: var(--font-display);
            font-size: 44px;
            font-weight: 700;
            color: var(--acid);
            line-height: 1.1;
            letter-spacing: 0.02em;
            margin-bottom: 8px;
        }

        .data-number .unit {
            font-size: 20px;
            font-weight: 500;
            color: var(--dark-muted);
            letter-spacing: 0.04em;
        }

        .data-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--dark-text);
            margin-bottom: 6px;
        }

        .data-note {
            font-size: 13px;
            color: var(--dark-muted);
            line-height: 1.6;
        }

        .data-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 700;
            color: var(--acid);
            margin-top: 8px;
        }

        .data-trend.down {
            color: var(--orange);
        }

        /* ============ 深度观察长文区 ============ */
        .deep-analysis-section {
            background: var(--soft-bg);
            padding: 80px 0;
        }

        .deep-analysis-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-light);
            border: var(--border-light);
            padding: 48px 52px;
            max-width: 880px;
            margin: 0 auto;
        }

        .deep-analysis-card h2 {
            font-size: 26px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--light-text);
            margin-bottom: 20px;
            letter-spacing: -0.01em;
        }

        .deep-analysis-card .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--light-muted);
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .deep-analysis-card .article-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .deep-analysis-card .article-meta i {
            color: var(--orange);
            font-size: 13px;
        }

        .deep-analysis-card p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--light-text);
            margin-bottom: 18px;
        }

        .deep-analysis-card p strong {
            color: var(--orange);
            font-weight: 700;
        }

        .deep-analysis-card .pull-quote {
            border-left: 4px solid var(--orange);
            padding: 16px 24px;
            background: rgba(255, 92, 26, 0.05);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 24px 0;
            font-size: 17px;
            font-weight: 600;
            line-height: 1.7;
            color: var(--light-text);
        }

        /* ============ 产业热榜排名 ============ */
        .ranking-section {
            background: #fff;
            padding: 72px 0 80px;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .ranking-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-top: 36px;
        }

        .ranking-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            margin-bottom: 10px;
            transition: var(--transition);
            background: var(--soft-bg);
        }

        .ranking-item:hover {
            border-color: rgba(255, 92, 26, 0.3);
            background: #fff;
            box-shadow: var(--shadow-light);
            transform: translateX(4px);
        }

        .rank-number {
            font-family: var(--font-display);
            font-size: 30px;
            font-weight: 700;
            color: var(--orange);
            min-width: 48px;
            text-align: center;
            line-height: 1;
        }

        .rank-number.top {
            color: #FF5C1A;
        }

        .rank-info {
            flex: 1;
        }

        .rank-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--light-text);
            margin-bottom: 3px;
            line-height: 1.4;
        }

        .rank-info p {
            font-size: 13px;
            color: var(--light-muted);
            margin: 0;
            line-height: 1.5;
        }

        .rank-change {
            font-size: 13px;
            font-weight: 700;
            color: var(--acid);
            white-space: nowrap;
        }

        .rank-change.down {
            color: var(--orange);
        }

        .rank-change.flat {
            color: var(--light-muted);
        }

        .ranking-panel-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--light-text);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .ranking-panel-title i {
            color: var(--orange);
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--soft-bg);
            padding: 72px 0 80px;
        }

        .faq-section .section-title {
            color: var(--light-text);
        }

        .faq-list {
            margin-top: 36px;
            max-width: 820px;
        }

        .faq-list .accordion {
            background: transparent;
            border: none;
            margin: 0;
            list-style: none;
            padding: 0;
        }

        .faq-list .accordion-item {
            background: #fff;
            border: 1px solid rgba(0, 0, 0, 0.1);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-list .accordion-item:hover {
            box-shadow: var(--shadow-light);
        }

        .faq-list .accordion-item.is-active {
            border-color: rgba(198, 255, 61, 0.5);
            border-left: 4px solid var(--acid);
        }

        .faq-list .accordion-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--light-text);
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: transparent;
            border: none;
            cursor: pointer;
            width: 100%;
            text-align: left;
            font-family: var(--font-chinese);
            line-height: 1.5;
        }

        .faq-list .accordion-title:hover {
            color: var(--orange);
        }

        .faq-list .accordion-title::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--orange);
            transition: transform 0.25s ease;
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-list .accordion-item.is-active .accordion-title::after {
            content: '−';
            transform: rotate(0deg);
        }

        .faq-list .accordion-content {
            padding: 0 24px 20px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--light-muted);
            display: none;
        }

        .faq-list .accordion-item.is-active .accordion-content {
            display: block;
        }

        .faq-list .accordion-content p {
            margin: 0;
        }

        /* ============ CTA ============ */
        .cta-section {
            background: var(--coal);
            color: var(--dark-text);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(198, 255, 61, 0.08) 0%, rgba(198, 255, 61, 0) 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 1;
        }

        .cta-section .grid-container {
            position: relative;
            z-index: 2;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-text {
            flex: 1;
            min-width: 280px;
        }

        .cta-text h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            color: var(--dark-text);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .cta-text p {
            font-size: 16px;
            color: var(--dark-muted);
            margin: 0;
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 30px;
            font-size: 15px;
            font-weight: 700;
            color: var(--coal);
            background: var(--acid);
            border-radius: var(--radius-sm);
            border: 2px solid var(--acid);
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font-chinese);
            line-height: 1.4;
            min-height: 48px;
        }

        .btn-primary:hover {
            background: var(--coal);
            color: var(--acid);
            border-color: var(--acid);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(198, 255, 61, 0.2);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 30px;
            font-size: 15px;
            font-weight: 700;
            color: var(--dark-text);
            background: transparent;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(198, 255, 61, 0.4);
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font-chinese);
            line-height: 1.4;
            min-height: 48px;
        }

        .btn-secondary:hover {
            background: var(--acid);
            color: var(--coal);
            border-color: var(--acid);
            transform: translateY(-2px);
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--coal);
            color: var(--dark-muted);
            padding: 40px 0 28px;
            border-top: 1px solid rgba(198, 255, 61, 0.12);
        }

        .footer-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            padding-bottom: 24px;
            border-bottom: 1px solid rgba(198, 255, 61, 0.1);
            margin-bottom: 20px;
        }

        .footer-brand {
            font-family: var(--font-display);
            font-size: 26px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--dark-text);
            text-transform: uppercase;
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 14px;
        }

        .footer-links a {
            color: var(--dark-muted);
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--acid);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--dark-muted);
        }

        .legal-links {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            font-size: 13px;
        }

        .legal-links a {
            color: var(--dark-muted);
            transition: var(--transition);
        }

        .legal-links a:hover {
            color: var(--acid);
        }

        .legal-links span {
            color: var(--dark-muted);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .masthead-nav {
                display: none;
            }

            .hamburger-btn {
                display: block;
            }

            .masthead-inner {
                padding: 12px 0;
            }

            .masthead-brand a {
                font-size: 26px;
            }

            .masthead-divider {
                height: 22px;
            }

            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .timeline-card-inner {
                flex-direction: column;
            }

            .timeline-card-img {
                flex: 0 0 180px;
                min-height: 180px;
            }

            .ranking-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .deep-analysis-card {
                padding: 32px 28px;
            }

            .section-pad {
                padding: 56px 0;
            }

            .section-pad-sm {
                padding: 44px 0;
            }

            .filter-bar {
                top: 64px;
            }
        }

        @media (max-width: 768px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .category-hero {
                padding: 40px 0 48px;
            }

            .category-hero h1 {
                font-size: 28px;
            }

            .category-hero-watermark {
                font-size: 140px;
            }

            .data-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .data-number {
                font-size: 36px;
            }

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-actions {
                width: 100%;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
            }

            .timeline {
                padding-left: 24px;
            }

            .timeline::before {
                left: 7px;
            }

            .timeline-item {
                padding-left: 22px;
            }

            .timeline-dot {
                left: -22px;
                width: 14px;
                height: 14px;
                border-width: 2px;
                box-shadow: 0 0 0 3px var(--acid-dim);
            }

            .timeline-card-body {
                padding: 20px;
            }

            .timeline-card-body h3 {
                font-size: 17px;
            }

            .deep-analysis-card {
                padding: 24px 20px;
            }

            .deep-analysis-card h2 {
                font-size: 22px;
            }

            .ranking-item {
                padding: 12px 14px;
                gap: 10px;
            }

            .rank-number {
                font-size: 24px;
                min-width: 36px;
            }

            .filter-bar-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .filter-sort {
                width: 100%;
            }

            .filter-sort select {
                flex: 1;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }

        @media (max-width: 520px) {
            .masthead-brand a {
                font-size: 22px;
            }

            .masthead-divider {
                height: 18px;
                width: 1px;
            }

            .hamburger-btn {
                font-size: 22px;
                padding: 6px 10px;
            }

            .category-hero h1 {
                font-size: 24px;
            }

            .category-hero-desc {
                font-size: 15px;
            }

            .hero-meta-row {
                gap: 14px;
            }

            .hero-meta-item {
                font-size: 12px;
            }

            .hero-meta-item strong {
                font-size: 16px;
            }

            .filter-tab {
                padding: 6px 14px;
                font-size: 12px;
            }

            .timeline-card-img {
                flex: 0 0 140px;
                min-height: 140px;
            }

            .deep-analysis-card p {
                font-size: 15px;
            }

            .cta-text h2 {
                font-size: 22px;
            }

            .footer-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
            }

            .footer-links {
                gap: 12px;
            }
        }