/* roulang page: index */
:root {
            --primary: #E10600;
            --primary-hover: #FF2D2D;
            --primary-active: #B30500;
            --bg-base: #0F0F12;
            --bg-section: #1A1A1F;
            --bg-card: #1E1E24;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(225, 6, 0, 0.5);
            --text-main: #E8E8E8;
            --text-secondary: #9A9A9A;
            --text-muted: #6B6B6B;
            --glow: rgba(225, 6, 0, 0.8);
            --radius-card: 10px;
            --radius-card-lg: 16px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.55);
            --transition: 0.3s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1240px;
            --container-padding: 24px;
            --nav-height: 68px;
            --section-gap-desktop: 100px;
            --section-gap-tablet: 60px;
            --section-gap-mobile: 42px;
        }

        *,
        *::before,
        *::after {
            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-stack);
            background-color: var(--bg-base);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.85;
            font-weight: 400;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
            transition: all var(--transition);
        }

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }

        .section {
            padding: var(--section-gap-desktop) 0;
            position: relative;
        }

        .section-alt {
            background-color: var(--bg-section);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(225, 6, 0, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            border: 1px solid rgba(225, 6, 0, 0.25);
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 18px;
        }

        .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
        }

        .section-header-center {
            text-align: center;
        }
        .section-header-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* === 导航栏 === */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(15, 15, 18, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }
        .header-logo .logo-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--primary);
            border-radius: 6px;
            position: relative;
            flex-shrink: 0;
        }
        .header-logo .logo-mark::after {
            content: '';
            position: absolute;
            inset: 6px;
            background: #fff;
            border-radius: 3px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }
        .header-logo span {
            white-space: nowrap;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .header-nav a {
            font-size: 15px;
            font-weight: 500;
            color: #C8C8C8;
            padding: 8px 16px;
            border-radius: 4px;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .header-nav a:hover {
            color: #fff;
        }
        .header-nav a.active {
            color: #fff;
        }
        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px var(--glow);
            border-radius: 2px;
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--primary);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: scale(1.03);
            box-shadow: 0 6px 20px rgba(225, 6, 0, 0.35);
        }
        .btn-primary:active {
            background: var(--primary-active);
            border-color: var(--primary-active);
            transform: scale(0.98);
        }

        .header-burger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .header-burger span {
            display: block;
            width: 24px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }
        .header-burger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .header-burger.active span:nth-child(2) {
            opacity: 0;
        }
        .header-burger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-panel {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 15, 18, 0.98);
            backdrop-filter: blur(16px);
            z-index: 999;
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }
        .mobile-panel.open {
            display: flex;
        }
        .mobile-panel a {
            font-size: 18px;
            font-weight: 500;
            color: #C8C8C8;
            padding: 14px 16px;
            border-radius: 8px;
            border-left: 3px solid transparent;
            transition: all var(--transition);
        }
        .mobile-panel a:hover,
        .mobile-panel a.active {
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
            border-left-color: var(--primary);
            box-shadow: -2px 0 12px rgba(225, 6, 0, 0.5);
        }

        /* === Hero === */
        .hero {
            min-height: 88vh;
            display: flex;
            align-items: center;
            position: relative;
            padding-top: var(--nav-height);
            background: var(--bg-base);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.32;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 15, 18, 0.55) 0%, rgba(15, 15, 18, 0.82) 60%, var(--bg-base) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .hero-content {
            max-width: 640px;
        }
        .hero-badge-group {
            display: flex;
            gap: 12px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .hero-badge {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            padding: 6px 16px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }
        .hero-badge b {
            color: #fff;
            font-weight: 600;
            margin-left: 6px;
        }
        .hero-title {
            font-size: 56px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.15;
            color: #fff;
            margin-bottom: 22px;
            animation: fadeUp 0.5s ease-out both;
        }
        .hero-title .highlight {
            color: var(--primary);
            text-shadow: 0 0 20px rgba(225, 6, 0, 0.5);
        }
        .hero-subtitle {
            font-size: 19px;
            color: #B0B0B0;
            line-height: 1.9;
            margin-bottom: 32px;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #C8C8C8;
            font-weight: 500;
            font-size: 15px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: #fff;
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: left;
        }
        .hero-stat .stat-num {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.01em;
        }
        .hero-stat .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .hero-visual {
            background: rgba(30, 30, 36, 0.85);
            border: 1px solid var(--border);
            border-radius: var(--radius-card-lg);
            padding: 32px;
            backdrop-filter: blur(8px);
            box-shadow: var(--shadow-card);
        }
        .hero-visual .visual-title {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero-visual .visual-title .dot {
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 8px var(--glow);
        }
        .hero-visual .visual-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
            color: var(--text-secondary);
        }
        .hero-visual .visual-row:last-child {
            border-bottom: none;
        }
        .hero-visual .visual-row b {
            color: #fff;
            font-weight: 600;
        }
        .hero-visual .progress-bar {
            width: 100%;
            height: 6px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 3px;
            margin-top: 16px;
            overflow: hidden;
        }
        .hero-visual .progress-bar .fill {
            height: 100%;
            background: var(--primary);
            border-radius: 3px;
            width: 72%;
            box-shadow: 0 0 10px rgba(225, 6, 0, 0.6);
            animation: widthGrow 1.2s ease-out both;
        }

        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(28px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        @keyframes widthGrow {
            from {
                width: 0;
            }
            to {
                width: 72%;
            }
        }

        /* === 卖点三连 === */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            transition: all var(--transition);
            cursor: default;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
        }
        .feature-icon {
            width: 48px;
            height: 48px;
            background: rgba(225, 6, 0, 0.12);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .feature-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        /* === 场景演示 === */
        .scene-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
        }
        .scene-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: default;
        }
        .scene-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .scene-card:hover img {
            transform: scale(1.06);
        }
        .scene-card .scene-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 15, 18, 0.1) 30%, rgba(15, 15, 18, 0.88) 100%);
            z-index: 1;
        }
        .scene-card .scene-info {
            position: relative;
            z-index: 2;
            padding: 24px;
            width: 100%;
        }
        .scene-card .scene-info h3 {
            font-size: 19px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }
        .scene-card .scene-info p {
            font-size: 14px;
            color: #C8C8C8;
            line-height: 1.7;
        }

        /* === 深度内容区 === */
        .deep-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .deep-content .content-main h2 {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.015em;
            margin-bottom: 16px;
        }
        .deep-content .content-main h3 {
            font-size: 20px;
            font-weight: 600;
            color: #fff;
            margin: 28px 0 12px;
        }
        .deep-content .content-main p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.95;
            margin-bottom: 14px;
        }
        .deep-content .content-main p strong {
            color: var(--text-main);
            font-weight: 600;
        }
        .deep-content .content-side {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
        }
        .deep-content .content-side h4 {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .deep-content .content-side ul li {
            font-size: 15px;
            color: var(--text-secondary);
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.7;
        }
        .deep-content .content-side ul li:last-child {
            border-bottom: none;
        }
        .deep-content .content-side ul li::before {
            content: '›';
            color: var(--primary);
            font-weight: 700;
            font-size: 18px;
            line-height: 1.4;
            flex-shrink: 0;
        }

        /* === 新闻中心 === */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 360px;
            gap: 32px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: flex;
            gap: 20px;
            padding: 22px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }
        .news-item:hover {
            padding-left: 8px;
        }
        .news-item .news-date {
            flex-shrink: 0;
            width: 64px;
            text-align: center;
            background: var(--bg-card);
            border-radius: 8px;
            padding: 8px 6px;
            border: 1px solid var(--border);
        }
        .news-date .day {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            display: block;
            line-height: 1.2;
        }
        .news-date .month {
            font-size: 12px;
            color: var(--text-muted);
        }
        .news-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }
        .news-body p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            line-height: 1.7;
        }
        .btn-readmore {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            transition: all var(--transition);
        }
        .btn-readmore:hover {
            color: var(--primary-hover);
        }
        .btn-readmore .arrow {
            transition: transform var(--transition);
        }
        .btn-readmore:hover .arrow {
            transform: translateX(4px);
        }
        .news-side {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 26px;
            align-self: start;
        }
        .news-side h4 {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .news-side ul li {
            font-size: 14px;
            color: var(--text-secondary);
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.6;
        }
        .news-side ul li:last-child {
            border-bottom: none;
        }
        .news-side ul li::before {
            content: '●';
            color: var(--primary);
            font-size: 8px;
        }

        /* === 社会认同 === */
        .social-proof-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .metrics-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            text-align: center;
            transition: all var(--transition);
        }
        .metrics-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
        }
        .metrics-card .metric-num {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.01em;
        }
        .metrics-card .metric-num span {
            font-size: 22px;
            color: var(--primary);
            margin-left: 2px;
        }
        .metrics-card .metric-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 6px;
        }
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }
        .testimonial-card {
            background: var(--bg-section);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
        }
        .testimonial-card .quote {
            font-size: 15px;
            color: var(--text-secondary);
            font-style: italic;
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .testimonial-card .author {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
        }
        .testimonial-card .role {
            font-size: 13px;
            color: var(--text-muted);
        }
        .partner-tags {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 32px;
            align-items: center;
            justify-content: center;
        }
        .partner-tag {
            font-size: 13px;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
            padding: 8px 18px;
            border-radius: 20px;
            letter-spacing: 0.04em;
        }

        /* === 保障图标条 === */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            transition: all var(--transition);
        }
        .guarantee-item:hover {
            border-color: var(--border-hover);
            transform: translateY(-2px);
        }
        .guarantee-icon {
            width: 42px;
            height: 42px;
            background: rgba(225, 6, 0, 0.1);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }
        .guarantee-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
        }
        .guarantee-item p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* === 时间线 === */
        .timeline {
            position: relative;
            padding-left: 32px;
            max-width: 720px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: rgba(225, 6, 0, 0.4);
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            padding-bottom: 28px;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -27px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 10px var(--glow);
            border: 2px solid var(--bg-base);
        }
        .timeline-item .time {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: 0.04em;
        }
        .timeline-item h4 {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin: 4px 0 6px;
        }
        .timeline-item p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* === CTA === */
        .cta-section {
            background: var(--bg-section);
            border: 1px solid var(--border);
            border-radius: var(--radius-card-lg);
            padding: 60px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.015em;
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.85;
        }

        /* === 底部固定转化条 === */
        .fixed-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(15, 15, 18, 0.96);
            backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-hover);
            z-index: 900;
            padding: 10px 0;
            transform: translateY(100%);
            transition: transform 0.45s ease;
            box-shadow: 0 -8px 30px rgba(0, 0, 0, 0.5);
        }
        .fixed-cta-bar.active {
            transform: translateY(0);
        }
        .fixed-cta-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .fixed-cta-bar p {
            font-size: 14px;
            color: var(--text-secondary);
            flex: 1;
        }
        .fixed-cta-bar p b {
            color: #fff;
            font-weight: 600;
        }
        .fixed-cta-bar .btn-primary {
            padding: 10px 22px;
            font-size: 14px;
        }

        /* === 页脚 === */
        .footer {
            background: var(--bg-base);
            border-top: 1px solid var(--border);
            padding: 60px 0 30px;
            margin-bottom: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand h3 .logo-mark {
            display: inline-block;
            width: 22px;
            height: 22px;
            background: var(--primary);
            border-radius: 5px;
            position: relative;
        }
        .footer-brand h3 .logo-mark::after {
            content: '';
            position: absolute;
            inset: 5px;
            background: #fff;
            border-radius: 2px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* === 响应式 === */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-visual {
                max-width: 600px;
            }
            .features-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .social-proof-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .deep-content {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-gap-desktop: 60px;
                --section-gap-tablet: 50px;
                --section-gap-mobile: 36px;
                --nav-height: 60px;
            }
            .header-nav {
                display: none;
            }
            .header-cta .btn-primary {
                display: none;
            }
            .header-burger {
                display: flex;
            }
            .hero {
                min-height: 75vh;
            }
            .hero-title {
                font-size: 36px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-stats {
                gap: 18px;
            }
            .hero-stat .stat-num {
                font-size: 24px;
            }
            .section-title {
                font-size: 26px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .social-proof-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .fixed-cta-bar .container {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .fixed-cta-bar p {
                font-size: 13px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 16px;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 15px;
                line-height: 1.7;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                gap: 14px;
            }
            .hero-stat .stat-num {
                font-size: 20px;
            }
            .social-proof-grid {
                grid-template-columns: 1fr 1fr;
            }
            .metrics-card .metric-num {
                font-size: 26px;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
                gap: 10px;
            }
            .news-item .news-date {
                width: auto;
                display: inline-flex;
                flex-direction: row;
                align-items: baseline;
                gap: 6px;
                padding: 4px 10px;
                align-self: flex-start;
            }
            .news-date .day {
                font-size: 16px;
                display: inline;
            }
            .section-title {
                font-size: 22px;
            }
            .fixed-cta-bar {
                padding: 8px 0;
            }
            .fixed-cta-bar p b {
                display: block;
            }
        }
        @media (max-width: 380px) {
            .hero-title {
                font-size: 26px;
            }
            .hero-badge {
                font-size: 11px;
                padding: 4px 10px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #E10600;
            --primary-hover: #FF2D2D;
            --primary-active: #B30500;
            --bg-base: #0F0F12;
            --bg-section: #1A1A1F;
            --bg-card: #1E1E24;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(225, 6, 0, 0.5);
            --text-main: #E8E8E8;
            --text-secondary: #9A9A9A;
            --text-muted: #6B6B6B;
            --glow: rgba(225, 6, 0, 0.8);
            --radius-card: 10px;
            --radius-card-lg: 16px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.55);
            --transition: 0.3s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1240px;
            --container-padding: 24px;
            --nav-height: 60px;
            --section-gap-desktop: 60px;
            --section-gap-tablet: 50px;
            --section-gap-mobile: 36px;
        }

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

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

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-base);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.85;
            font-weight: 400;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: var(--nav-height);
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
            transition: all var(--transition);
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }

        .section {
            padding: var(--section-gap-desktop) 0;
            position: relative;
        }

        .section-alt {
            background-color: var(--bg-section);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(225, 6, 0, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            border: 1px solid rgba(225, 6, 0, 0.25);
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 18px;
        }

        .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
        }

        .section-header-center {
            text-align: center;
        }
        .section-header-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* === 导航栏 === */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(15, 15, 18, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .header-logo .logo-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--primary);
            border-radius: 6px;
            position: relative;
            flex-shrink: 0;
        }

        .header-logo .logo-mark::after {
            content: '';
            position: absolute;
            inset: 6px;
            background: #fff;
            border-radius: 3px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }

        .header-logo span {
            white-space: nowrap;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .header-nav a {
            font-size: 15px;
            font-weight: 500;
            color: #C8C8C8;
            padding: 8px 14px;
            border-radius: 4px;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }

        .header-nav a:hover {
            color: #FFFFFF;
        }

        .header-nav a.active {
            color: #FFFFFF;
        }

        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 8px var(--glow);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.02em;
            white-space: nowrap;
            border: 1px solid var(--primary);
            transition: all var(--transition);
            display: inline-block;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            filter: brightness(1.2);
            transform: scale(1.03);
            box-shadow: 0 0 20px rgba(225, 6, 0, 0.4);
        }

        .btn-primary:active {
            background: var(--primary-active);
            border-color: var(--primary-active);
            transform: scale(0.98);
        }

        .btn-outline {
            background: transparent;
            color: #E8E8E8;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.02em;
            white-space: nowrap;
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: all var(--transition);
            display: inline-block;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: #fff;
        }

        .header-burger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            border: 1px solid var(--border);
            background: transparent;
        }

        .header-burger span {
            display: block;
            width: 22px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }

        /* === 移动端导航面板 === */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 15, 18, 0.98);
            backdrop-filter: blur(16px);
            z-index: 999;
            padding: 32px 24px;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-nav.active {
            display: flex;
        }

        .mobile-nav a {
            font-size: 18px;
            font-weight: 500;
            color: #C8C8C8;
            padding: 14px 16px;
            border-radius: 8px;
            border-left: 3px solid transparent;
            transition: all var(--transition);
        }

        .mobile-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.04);
        }

        .mobile-nav a.active {
            color: #fff;
            border-left-color: var(--primary);
            background: rgba(225, 6, 0, 0.08);
            box-shadow: inset 0 0 20px rgba(225, 6, 0, 0.06);
        }

        /* === Hero 分类页头 === */
        .page-hero {
            padding: 60px 0 48px;
            background: var(--bg-base);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(225, 6, 0, 0.15), transparent 65%);
            pointer-events: none;
            z-index: 0;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            max-width: 720px;
        }

        .page-hero .hero-desc {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.9;
            margin-bottom: 24px;
        }

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

        .hero-tag {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-card);
            padding: 6px 14px;
            border-radius: 20px;
            border: 1px solid var(--border);
        }

        /* === 筛选标签 === */
        .filter-section {
            padding: 20px 0 0;
        }

        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            margin-bottom: 28px;
        }

        .filter-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            margin-right: 4px;
        }

        .filter-btn {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-card);
            padding: 8px 18px;
            border-radius: 20px;
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
        }

        .filter-btn:hover {
            color: #fff;
            border-color: var(--border-hover);
        }

        .filter-btn.active {
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
            box-shadow: 0 0 12px rgba(225, 6, 0, 0.3);
        }

        /* === 网格卡片 === */
        .grid-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .data-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
            cursor: pointer;
        }

        .data-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
        }

        .data-card .card-image {
            height: 160px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .data-card .card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(15, 15, 18, 0.1), rgba(15, 15, 18, 0.7));
        }

        .data-card .card-body {
            padding: 22px 22px 24px;
        }

        .data-card .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--primary);
            background: rgba(225, 6, 0, 0.1);
            padding: 3px 10px;
            border-radius: 12px;
            border: 1px solid rgba(225, 6, 0, 0.2);
            margin-bottom: 10px;
        }

        .data-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .data-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .data-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .data-card .card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* === 深度正文区 === */
        .article-section {
            background: var(--bg-section);
            border-radius: var(--radius-card-lg);
            border: 1px solid var(--border);
            padding: 40px 44px;
            margin-top: 8px;
        }

        .article-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .article-section h3 {
            font-size: 19px;
            font-weight: 600;
            color: #fff;
            margin-top: 24px;
            margin-bottom: 10px;
        }

        .article-section p {
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.9;
            margin-bottom: 14px;
        }

        .article-section .highlight-block {
            background: rgba(225, 6, 0, 0.06);
            border-left: 3px solid var(--primary);
            padding: 14px 18px;
            border-radius: 0 8px 8px 0;
            margin: 16px 0;
            font-size: 14px;
            color: var(--text-main);
            line-height: 1.8;
        }

        /* === 数据指标 === */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 28px;
        }

        .metric-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: center;
            transition: all var(--transition);
        }

        .metric-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .metric-number {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 6px;
            font-variant-numeric: tabular-nums;
        }

        .metric-number .unit {
            font-size: 18px;
            color: var(--primary);
            font-weight: 600;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* === CTA === */
        .cta-section {
            background: linear-gradient(135deg, #1A0505 0%, #0F0F12 50%, #1A0505 100%);
            border-radius: var(--radius-card-lg);
            border: 1px solid rgba(225, 6, 0, 0.25);
            padding: 52px 44px;
            text-align: center;
            margin-top: 10px;
        }

        .cta-section h2 {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 540px;
            margin: 0 auto 28px;
            line-height: 1.85;
        }

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

        /* === 页脚 === */
        .footer {
            background: var(--bg-section);
            border-top: 1px solid var(--border);
            padding: 60px 0 20px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .logo-mark {
            display: inline-block;
            width: 20px;
            height: 20px;
            background: var(--primary);
            border-radius: 4px;
            position: relative;
            flex-shrink: 0;
        }
        .footer-brand .logo-mark::after {
            content: '';
            position: absolute;
            inset: 4px;
            background: #fff;
            border-radius: 2px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary-hover);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
            justify-content: space-between;
        }

        .footer-links {
            display: flex;
            gap: 16px;
        }

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

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

        /* === 响应式 === */
        @media (max-width: 1024px) {
            .grid-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .header-nav a {
                padding: 8px 10px;
                font-size: 14px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap-desktop: 50px;
                --section-gap-tablet: 42px;
                --section-gap-mobile: 32px;
                --nav-height: 56px;
            }
            .section {
                padding: var(--section-gap-tablet) 0;
            }
            .header-nav {
                display: none;
            }
            .header-cta .btn-primary {
                display: none;
            }
            .header-burger {
                display: flex;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .grid-cards {
                grid-template-columns: 1fr;
            }
            .article-section {
                padding: 28px 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .cta-section {
                padding: 36px 24px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --container-padding: 16px;
                --section-gap-mobile: 32px;
            }
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-title {
                font-size: 26px;
            }
            .page-hero {
                padding: 42px 0 36px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .article-section {
                padding: 21px 16px;
            }
            .article-section h2 {
                font-size: 21px;
            }
            .cta-section h2 {
                font-size: 23px;
            }
            .filter-btn {
                padding: 6px 13px;
                font-size: 13px;
            }
            .data-card .card-body {
                padding: 16px 16px 18px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #E10600;
            --primary-hover: #FF2D2D;
            --primary-active: #B30500;
            --bg-base: #0F0F12;
            --bg-section: #1A1A1F;
            --bg-card: #1E1E24;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(225, 6, 0, 0.5);
            --text-main: #E8E8E8;
            --text-secondary: #9A9A9A;
            --text-muted: #6B6B6B;
            --glow: rgba(225, 6, 0, 0.8);
            --radius-card: 10px;
            --radius-card-lg: 16px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.55);
            --transition: 0.3s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1240px;
            --container-padding: 24px;
            --nav-height: 68px;
            --section-gap-desktop: 70px;
            --section-gap-tablet: 50px;
            --section-gap-mobile: 36px;
        }
        :root {
            --section-gap-desktop: 60px;
            --section-gap-tablet: 50px;
            --section-gap-mobile: 36px;
            --nav-height: 60px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scroll-padding-top: var(--nav-height);
        }
        body {
            font-family: var(--font-stack);
            background-color: var(--bg-base);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.85;
            font-weight: 400;
            overflow-x: hidden;
            min-height: 100vh;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
            transition: all var(--transition);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }
        .section {
            padding: var(--section-gap-desktop) 0;
            position: relative;
        }
        .section-alt {
            background-color: var(--bg-section);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(225, 6, 0, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            border: 1px solid rgba(225, 6, 0, 0.25);
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 18px;
        }
        .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
        }
        .section-header-center {
            text-align: center;
        }
        .section-header-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* 导航栏 */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(15, 15, 18, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }
        .header-logo .logo-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--primary);
            border-radius: 6px;
            position: relative;
            flex-shrink: 0;
        }
        .header-logo .logo-mark::after {
            content: '';
            position: absolute;
            inset: 6px;
            background: #fff;
            border-radius: 3px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }
        .header-logo span {
            white-space: nowrap;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .header-nav a {
            font-size: 15px;
            font-weight: 500;
            color: #C8C8C8;
            padding: 8px 14px;
            border-radius: 4px;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .header-nav a:hover {
            color: #FFFFFF;
        }
        .header-nav a.active {
            color: #FFFFFF;
        }
        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px var(--glow);
            border-radius: 1px;
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: scale(1.03);
            color: #fff;
        }
        .btn-primary:active {
            background: var(--primary-active);
            transform: scale(0.98);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid rgba(255, 255, 255, 0.3);
            font-weight: 500;
            font-size: 15px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: #fff;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.4);
            font-weight: 500;
            font-size: 15px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-ghost:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-readmore {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
            cursor: pointer;
            background: none;
            border: none;
            padding: 0;
        }
        .btn-readmore:hover {
            color: var(--primary-hover);
        }
        .btn-readmore .arrow {
            display: inline-block;
            transition: transform var(--transition);
        }
        .btn-readmore:hover .arrow {
            transform: translateX(4px);
        }
        .header-burger {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 36px;
            height: 36px;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            border: 1px solid var(--border);
            background: transparent;
            cursor: pointer;
            padding: 8px;
            flex-shrink: 0;
        }
        .header-burger span {
            display: block;
            width: 18px;
            height: 2px;
            background: #fff;
            border-radius: 1px;
            transition: all var(--transition);
        }
        .header-burger.is-open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .header-burger.is-open span:nth-child(2) {
            opacity: 0;
        }
        .header-burger.is-open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* 移动端导航 */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 15, 18, 0.98);
            z-index: 999;
            flex-direction: column;
            padding: 32px 24px;
            gap: 8px;
            overflow-y: auto;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .mobile-nav.is-open {
            display: flex;
        }
        .mobile-nav a {
            font-size: 18px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 14px 16px;
            border-left: 3px solid transparent;
            border-radius: 4px;
            transition: all var(--transition);
        }
        .mobile-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.04);
        }
        .mobile-nav a.active {
            color: #fff;
            border-left-color: var(--primary);
            background: rgba(225, 6, 0, 0.08);
        }
        .mobile-nav .mobile-cta {
            margin-top: 16px;
        }

        /* Hero 区域 */
        .page-hero {
            padding-top: calc(var(--nav-height) + 60px);
            padding-bottom: 60px;
            position: relative;
            background: linear-gradient(180deg, rgba(225, 6, 0, 0.06) 0%, rgba(15, 15, 18, 0.95) 70%), var(--bg-base);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 460px;
            height: 460px;
            background: radial-gradient(circle, rgba(225, 6, 0, 0.12) 0%, transparent 65%);
            pointer-events: none;
            z-index: 0;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(225, 6, 0, 0.08) 0%, transparent 60%);
            pointer-events: none;
            z-index: 0;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .page-hero-content {
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
        }
        .page-hero-text {
            flex: 1 1 520px;
            min-width: 0;
        }
        .page-hero-image {
            flex: 0 0 320px;
            max-width: 320px;
            border-radius: var(--radius-card-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
        }
        .page-hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .page-hero h1 {
            font-size: 46px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 18px;
        }
        .page-hero h1 .highlight {
            color: var(--primary);
        }
        .page-hero .hero-sub {
            font-size: 18px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 620px;
            margin-bottom: 30px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-badges {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            margin-top: 32px;
        }
        .hero-badge {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-badge .badge-num {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.01em;
        }
        .hero-badge .badge-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 主体布局：时间线+侧栏 */
        .content-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
            align-items: start;
        }
        .content-main {
            min-width: 0;
        }
        .content-sidebar {
            position: sticky;
            top: calc(var(--nav-height) + 24px);
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        /* 时间线 */
        .timeline-section {
            position: relative;
        }
        .timeline-section::before {
            content: '';
            position: absolute;
            left: 19px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--primary) 0%, rgba(225, 6, 0, 0.2) 100%);
            z-index: 0;
        }
        .timeline-item {
            position: relative;
            padding-left: 60px;
            margin-bottom: 36px;
            z-index: 1;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: 11px;
            top: 4px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 3px solid var(--primary);
            box-shadow: 0 0 12px rgba(225, 6, 0, 0.5);
            z-index: 1;
            transition: all var(--transition);
        }
        .timeline-item:hover::before {
            box-shadow: 0 0 20px rgba(225, 6, 0, 0.8);
            transform: scale(1.15);
        }
        .timeline-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
        }
        .timeline-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .timeline-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }
        .timeline-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(225, 6, 0, 0.1);
            padding: 2px 12px;
            border-radius: 16px;
            border: 1px solid rgba(225, 6, 0, 0.2);
        }
        .timeline-date {
            font-size: 13px;
            color: var(--text-muted);
        }
        .timeline-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .timeline-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .timeline-card .btn-readmore {
            margin-top: 12px;
        }

        /* 侧栏卡片 */
        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }
        .sidebar-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 16px;
            background: var(--primary);
            border-radius: 2px;
            flex-shrink: 0;
        }
        .sidebar-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .sidebar-stat {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 14px;
            text-align: center;
        }
        .sidebar-stat .stat-num {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.01em;
            display: block;
        }
        .sidebar-stat .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            display: block;
            margin-top: 2px;
        }
        .sidebar-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .sidebar-list li {
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }
        .sidebar-list li::before {
            content: '›';
            color: var(--primary);
            font-weight: 700;
            flex-shrink: 0;
            line-height: inherit;
        }
        .sidebar-contact {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .sidebar-contact a {
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition);
        }
        .sidebar-contact a:hover {
            color: #fff;
        }

        /* 深度正文 */
        .article-body {
            max-width: 820px;
        }
        .article-body h2 {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            line-height: 1.4;
        }
        .article-body h3 {
            font-size: 19px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
            margin-top: 24px;
            line-height: 1.5;
        }
        .article-body p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 2;
            margin-bottom: 16px;
        }
        .article-body .article-highlight {
            background: var(--bg-card);
            border-left: 3px solid var(--primary);
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 20px 0;
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.9;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.15);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            transition: color var(--transition);
            width: 100%;
            text-align: left;
            background: none;
            border: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            border: 1px solid var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: var(--text-muted);
            transition: all var(--transition);
        }
        .faq-item.is-open .faq-icon {
            border-color: var(--primary);
            color: var(--primary);
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.9;
        }
        .faq-item.is-open .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1A1A1F 0%, #2A0A0A 50%, #1A1A1F 100%);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(225, 6, 0, 0.15) 0%, transparent 65%);
            pointer-events: none;
        }
        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .cta-text h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
            margin-bottom: 8px;
        }
        .cta-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }

        /* 页脚 */
        .footer {
            background: var(--bg-base);
            border-top: 1px solid var(--border);
            padding: 48px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .footer-brand h3 .logo-mark {
            display: inline-block;
            width: 20px;
            height: 20px;
            background: var(--primary);
            border-radius: 4px;
            position: relative;
            flex-shrink: 0;
        }
        .footer-brand h3 .logo-mark::after {
            content: '';
            position: absolute;
            inset: 5px;
            background: #fff;
            border-radius: 2px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px 20px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-links {
            display: flex;
            gap: 16px;
            margin-left: auto;
        }
        .footer-links a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
        }

        /* 响应式 */
        @media (max-width: 991px) {
            .content-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .content-sidebar {
                position: static;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .page-hero h1 {
                font-size: 36px;
            }
            .page-hero-content {
                gap: 28px;
            }
            .page-hero-image {
                flex: 0 0 220px;
                max-width: 220px;
            }
            .section-title {
                font-size: 28px;
            }
        }
        @media (max-width: 767px) {
            .header-nav {
                display: none;
            }
            .header-cta .btn-primary {
                display: none;
            }
            .header-burger {
                display: flex;
            }
            .mobile-nav {
                display: none;
            }
            .mobile-nav.is-open {
                display: flex;
            }
            .page-hero {
                padding-top: calc(var(--nav-height) + 36px);
                padding-bottom: 40px;
            }
            .page-hero-content {
                flex-direction: column;
                gap: 24px;
            }
            .page-hero-image {
                flex: 0 0 auto;
                max-width: 100%;
                width: 100%;
                max-height: 280px;
            }
            .page-hero-image img {
                object-fit: cover;
                height: 280px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .hero-badges {
                gap: 16px;
            }
            .hero-badge .badge-num {
                font-size: 22px;
            }
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-title {
                font-size: 24px;
            }
            .section-desc {
                font-size: 15px;
            }
            .timeline-item {
                padding-left: 46px;
            }
            .timeline-section::before {
                left: 15px;
            }
            .timeline-item::before {
                left: 7px;
                width: 14px;
                height: 14px;
            }
            .timeline-card {
                padding: 18px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-links {
                margin-left: 0;
            }
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-actions {
                width: 100%;
            }
        }
        @media (max-width: 520px) {
            :root {
                --container-padding: 16px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero .hero-sub {
                font-size: 16px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
            }
            .timeline-card h3 {
                font-size: 17px;
            }
            .article-body h2 {
                font-size: 21px;
            }
            .cta-text h2 {
                font-size: 22px;
            }
            .sidebar-stats {
                grid-template-columns: 1fr 1fr;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #E10600;
            --primary-hover: #FF2D2D;
            --primary-active: #B30500;
            --bg-base: #0F0F12;
            --bg-section: #1A1A1F;
            --bg-card: #1E1E24;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(225, 6, 0, 0.5);
            --text-main: #E8E8E8;
            --text-secondary: #9A9A9A;
            --text-muted: #6B6B6B;
            --glow: rgba(225, 6, 0, 0.8);
            --radius-card: 10px;
            --radius-card-lg: 16px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.55);
            --transition: 0.3s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1240px;
            --container-padding: 24px;
            --nav-height: 68px;
            --section-gap-desktop: 60px;
            --section-gap-tablet: 50px;
            --section-gap-mobile: 36px;
        }

        * {
            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-stack);
            background-color: var(--bg-base);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.85;
            font-weight: 400;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: var(--nav-height);
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
            transition: all var(--transition);
        }

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }

        .section {
            padding: var(--section-gap-desktop) 0;
            position: relative;
        }

        .section-alt {
            background-color: var(--bg-section);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(225, 6, 0, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            border: 1px solid rgba(225, 6, 0, 0.25);
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 18px;
        }

        .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
        }

        .section-header-center {
            text-align: center;
        }

        .section-header-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* === 导航栏 === */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(15, 15, 18, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .header-logo .logo-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--primary);
            border-radius: 6px;
            position: relative;
            flex-shrink: 0;
        }

        .header-logo .logo-mark::after {
            content: '';
            position: absolute;
            inset: 6px;
            background: #fff;
            border-radius: 3px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }

        .header-logo span {
            white-space: nowrap;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .header-nav a {
            font-size: 15px;
            font-weight: 500;
            color: #C8C8C8;
            padding: 8px 14px;
            border-radius: 4px;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }

        .header-nav a:hover {
            color: #fff;
        }

        .header-nav a.active {
            color: #fff;
        }

        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px var(--glow);
            border-radius: 2px;
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            white-space: nowrap;
            cursor: pointer;
            border: 1px solid var(--primary);
            letter-spacing: 0.01em;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: scale(1.03);
            box-shadow: 0 6px 20px rgba(225, 6, 0, 0.35);
            color: #fff;
        }

        .btn-primary:active {
            background: var(--primary-active);
            border-color: var(--primary-active);
            transform: scale(0.98);
            box-shadow: none;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 15px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: all var(--transition);
            white-space: nowrap;
            cursor: pointer;
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: #fff;
            background: rgba(225, 6, 0, 0.06);
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        .header-burger {
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: rgba(255, 255, 255, 0.04);
            transition: all var(--transition);
        }

        .header-burger span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }

        .header-burger:hover {
            border-color: rgba(255, 255, 255, 0.2);
        }

        /* === 移动端导航面板 === */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 15, 18, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 999;
            flex-direction: column;
            padding: 24px;
            gap: 8px;
            overflow-y: auto;
        }

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

        .mobile-nav a {
            display: block;
            font-size: 17px;
            font-weight: 500;
            color: #C8C8C8;
            padding: 14px 18px;
            border-radius: 8px;
            border-left: 3px solid transparent;
            transition: all var(--transition);
        }

        .mobile-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.04);
        }

        .mobile-nav a.active {
            color: #fff;
            border-left-color: var(--primary);
            background: rgba(225, 6, 0, 0.06);
            box-shadow: inset 0 0 12px rgba(225, 6, 0, 0.1);
        }

        .mobile-nav .btn-primary {
            margin-top: 12px;
            justify-content: center;
        }

        /* === Hero 矮横幅 === */
        .hero-category {
            position: relative;
            padding: 48px 0 36px;
            background: var(--bg-base);
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }

        .hero-category::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 20%, rgba(225, 6, 0, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 80%, rgba(225, 6, 0, 0.04) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero-category .container {
            position: relative;
            z-index: 1;
        }

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

        .hero-category-content {
            padding-right: 12px;
        }

        .hero-category-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 18px;
        }

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

        .hero-category-breadcrumb .sep {
            color: var(--text-muted);
        }

        .hero-category h1 {
            font-size: 44px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.22;
            margin-bottom: 18px;
        }

        .hero-category h1 .highlight {
            color: var(--primary);
            text-shadow: 0 0 20px rgba(225, 6, 0, 0.4);
        }

        .hero-category-desc {
            font-size: 18px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 520px;
            margin-bottom: 28px;
        }

        .hero-category-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .hero-category-image {
            position: relative;
            border-radius: var(--radius-card-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            aspect-ratio: 4 / 3;
            background: var(--bg-card);
        }

        .hero-category-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .hero-category-image:hover img {
            transform: scale(1.04);
        }

        .hero-category-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 15, 18, 0.3) 0%, rgba(15, 15, 18, 0.05) 40%, rgba(225, 6, 0, 0.15) 100%);
            pointer-events: none;
        }

        .hero-category-image .image-badge {
            position: absolute;
            bottom: 18px;
            left: 18px;
            right: 18px;
            z-index: 2;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .image-badge-item {
            background: rgba(15, 15, 18, 0.85);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 8px;
            padding: 8px 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #fff;
            font-weight: 500;
        }

        .image-badge-item .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 8px var(--glow);
            flex-shrink: 0;
        }

        /* === 左右分栏布局通用 === */
        .split-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .split-layout.reverse {
            direction: rtl;
        }

        .split-layout.reverse>* {
            direction: ltr;
        }

        .split-text {
            min-width: 0;
        }

        .split-image {
            position: relative;
            border-radius: var(--radius-card-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            background: var(--bg-card);
            aspect-ratio: 4 / 3;
            min-width: 0;
        }

        .split-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .split-image:hover img {
            transform: scale(1.05);
        }

        .split-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 15, 18, 0.25) 0%, transparent 50%, rgba(225, 6, 0, 0.1) 100%);
            pointer-events: none;
        }

        /* === 能力卡片列表 === */
        .capability-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 24px;
        }

        .capability-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            transition: all var(--transition);
            cursor: default;
        }

        .capability-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            background: #222228;
        }

        .capability-icon {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(225, 6, 0, 0.12);
            border: 1px solid rgba(225, 6, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
        }

        .capability-item h4 {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
            letter-spacing: -0.01em;
        }

        .capability-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* === 深度内容区 === */
        .content-prose {
            max-width: 800px;
        }

        .content-prose h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .content-prose h3 {
            font-size: 20px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
            margin-top: 24px;
            letter-spacing: -0.01em;
        }

        .content-prose p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 2.0;
            margin-bottom: 16px;
        }

        .content-prose strong {
            color: #fff;
            font-weight: 600;
        }

        .content-prose .highlight-text {
            color: var(--primary);
            font-weight: 500;
        }

        /* === 流程步骤 === */
        .process-steps {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 24px;
        }

        .process-step {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }

        .process-step:last-child {
            border-bottom: none;
        }

        .process-step:hover {
            padding-left: 8px;
        }

        .step-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(225, 6, 0, 0.1);
            border: 1px solid rgba(225, 6, 0, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
        }

        .step-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }

        .step-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* === 数据指标区 === */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }

        .metric-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition);
            cursor: default;
        }

        .metric-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .metric-value {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 8px;
            font-variant-numeric: tabular-nums;
        }

        .metric-value .red {
            color: var(--primary);
            text-shadow: 0 0 15px rgba(225, 6, 0, 0.3);
        }

        .metric-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.04em;
        }

        /* === FAQ 手风琴 === */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 24px;
            max-width: 820px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.16);
        }

        .faq-item.active {
            border-color: var(--border-hover);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            user-select: none;
            transition: all var(--transition);
            width: 100%;
            text-align: left;
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .faq-question h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            letter-spacing: -0.01em;
            line-height: 1.5;
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
            transition: all var(--transition);
            font-weight: 500;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(225, 6, 0, 0.1);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.85;
            padding-top: 4px;
            border-top: 1px solid var(--border);
        }

        /* === CTA 区 === */
        .cta-section {
            background: var(--bg-section);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 56px 0;
        }

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

        .cta-text h3 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 8px;
        }

        .cta-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 500px;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        /* === Footer === */
        .footer {
            background: #0A0A0D;
            border-top: 1px solid var(--border);
            padding: 48px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid var(--border);
        }

        .footer-brand h3 {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .footer-brand .logo-mark {
            display: inline-block;
            width: 22px;
            height: 22px;
            background: var(--primary);
            border-radius: 5px;
            position: relative;
            flex-shrink: 0;
        }

        .footer-brand .logo-mark::after {
            content: '';
            position: absolute;
            inset: 5px;
            background: #fff;
            border-radius: 2px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 20px 0 24px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom span {
            white-space: nowrap;
        }

        .footer-links {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
        }

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

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

        /* === 动画 === */
        @keyframes fadeInUp {
            0% {
                opacity: 0;
                transform: translateY(20px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in-up {
            animation: fadeInUp 0.5s ease-out forwards;
        }

        .delay-1 {
            animation-delay: 0.1s;
            opacity: 0;
        }
        .delay-2 {
            animation-delay: 0.2s;
            opacity: 0;
        }
        .delay-3 {
            animation-delay: 0.3s;
            opacity: 0;
        }

        /* === 响应式设计 === */
        @media (max-width: 1199px) {
            .header-nav a {
                padding: 8px 10px;
                font-size: 14px;
            }

            .hero-category h1 {
                font-size: 38px;
            }

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

        @media (max-width: 991px) {
            :root {
                --section-gap-desktop: 50px;
            }

            .header-nav {
                display: none;
            }

            .header-burger {
                display: flex;
            }

            .header-cta .btn-primary {
                display: none;
            }

            .hero-category-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero-category h1 {
                font-size: 34px;
            }

            .split-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .split-layout.reverse {
                direction: ltr;
            }

            .split-layout.reverse>* {
                direction: ltr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-gap-desktop: 42px;
                --container-padding: 16px;
            }

            .hero-category {
                padding: 32px 0 24px;
            }

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

            .hero-category-desc {
                font-size: 16px;
            }

            .hero-category-actions {
                flex-direction: column;
                gap: 10px;
            }

            .hero-category-actions .btn-primary,
            .hero-category-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }

            .section-title {
                font-size: 26px;
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .metric-value {
                font-size: 28px;
            }

            .metric-card {
                padding: 18px 14px;
            }

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

            .cta-actions {
                width: 100%;
                flex-direction: column;
            }

            .cta-actions .btn-primary,
            .cta-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .content-prose h2 {
                font-size: 24px;
            }

            .content-prose h3 {
                font-size: 18px;
            }
        }

        @media (max-width: 519px) {
            .hero-category h1 {
                font-size: 26px;
            }

            .hero-category-desc {
                font-size: 15px;
                line-height: 1.8;
            }

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

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

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

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

            .process-step {
                flex-direction: column;
                gap: 10px;
            }

            .capability-item {
                padding: 14px 16px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #E10600;
            --primary-hover: #FF2D2D;
            --primary-active: #B30500;
            --bg-base: #0F0F12;
            --bg-section: #1A1A1F;
            --bg-card: #1E1E24;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(225, 6, 0, 0.5);
            --text-main: #E8E8E8;
            --text-secondary: #9A9A9A;
            --text-muted: #6B6B6B;
            --glow: rgba(225, 6, 0, 0.8);
            --radius-card: 10px;
            --radius-card-lg: 16px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.55);
            --transition: 0.3s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1240px;
            --container-padding: 24px;
            --nav-height: 68px;
            --section-gap-desktop: 70px;
            --section-gap-tablet: 50px;
            --section-gap-mobile: 36px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-stack);
            background-color: var(--bg-base);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.85;
            font-weight: 400;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: var(--nav-height);
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
            transition: all var(--transition);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }
        .section {
            padding: var(--section-gap-desktop) 0;
            position: relative;
        }
        .section-alt {
            background-color: var(--bg-section);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(225, 6, 0, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            border: 1px solid rgba(225, 6, 0, 0.25);
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 18px;
        }
        .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
        }
        .section-header-center {
            text-align: center;
        }
        .section-header-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* === 导航栏 === */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(15, 15, 18, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }
        .header-logo .logo-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--primary);
            border-radius: 6px;
            position: relative;
            flex-shrink: 0;
        }
        .header-logo .logo-mark::after {
            content: '';
            position: absolute;
            inset: 6px;
            background: #fff;
            border-radius: 3px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }
        .header-logo span {
            white-space: nowrap;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .header-nav a {
            font-size: 15px;
            font-weight: 500;
            color: #C8C8C8;
            padding: 8px 16px;
            border-radius: 4px;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .header-nav a:hover {
            color: #fff;
        }
        .header-nav a.active {
            color: #fff;
        }
        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 8px var(--glow);
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 15px;
            border: 1px solid var(--primary);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: scale(1.03);
            box-shadow: 0 4px 16px rgba(225, 6, 0, 0.35);
            color: #fff;
        }
        .btn-primary:active {
            background: var(--primary-active);
            border-color: var(--primary-active);
            transform: scale(0.98);
        }
        .header-burger {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 32px;
            height: 32px;
            align-items: center;
            justify-content: center;
            border-radius: 4px;
            background: transparent;
        }
        .header-burger span {
            display: block;
            width: 22px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }

        /* === 分类页 Hero（图文穿插长滚动风格）=== */
        .cat-hero {
            padding: 70px 0 50px;
            position: relative;
            background: var(--bg-base);
            overflow: hidden;
        }
        .cat-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -160px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(225, 6, 0, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cat-hero::after {
            content: '';
            position: absolute;
            bottom: -180px;
            left: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(225, 6, 0, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cat-hero .container {
            position: relative;
            z-index: 1;
        }
        .cat-hero-top {
            display: flex;
            align-items: flex-start;
            gap: 40px;
            flex-wrap: wrap;
        }
        .cat-hero-text {
            flex: 1 1 55%;
            min-width: 300px;
        }
        .cat-hero-text h1 {
            font-size: 48px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.15;
            margin-bottom: 18px;
        }
        .cat-hero-text h1 .highlight {
            color: var(--primary);
        }
        .cat-hero-text .hero-desc {
            font-size: 18px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 560px;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--text-main);
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 15px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: #fff;
            background: rgba(225, 6, 0, 0.08);
        }
        .cat-hero-img {
            flex: 1 1 35%;
            min-width: 280px;
            border-radius: var(--radius-card-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
        }
        .cat-hero-img img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .cat-hero-img img:hover {
            transform: scale(1.03);
        }
        .hero-badges {
            display: flex;
            gap: 30px;
            margin-top: 36px;
            flex-wrap: wrap;
        }
        .hero-badge {
            display: flex;
            align-items: baseline;
            gap: 8px;
        }
        .hero-badge .num {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }
        .hero-badge .label {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* === 图文穿插区块 === */
        .interleave {
            display: flex;
            align-items: center;
            gap: 50px;
            margin-bottom: 60px;
            flex-wrap: wrap;
        }
        .interleave:last-child {
            margin-bottom: 0;
        }
        .interleave-img {
            flex: 1 1 42%;
            min-width: 280px;
            border-radius: var(--radius-card-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .interleave-img:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .interleave-img img {
            width: 100%;
            height: 340px;
            object-fit: cover;
        }
        .interleave-content {
            flex: 1 1 50%;
            min-width: 280px;
        }
        .interleave-content h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .interleave-content p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 12px;
        }
        .interleave.reverse {
            flex-direction: row-reverse;
        }
        .interleave-tags {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 16px;
        }
        .tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .tag:hover {
            border-color: var(--border-hover);
            color: #fff;
            background: rgba(225, 6, 0, 0.1);
        }

        /* === 数据摘要条 === */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin: 0;
            padding: 30px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .stat-item {
            text-align: center;
            padding: 10px;
        }
        .stat-item .stat-num {
            font-size: 38px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* === 深度正文区 === */
        .deep-content {
            background: var(--bg-card);
            border-radius: var(--radius-card-lg);
            border: 1px solid var(--border);
            padding: 40px 48px;
        }
        .deep-content h3 {
            font-size: 22px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            margin-top: 24px;
        }
        .deep-content h3:first-child {
            margin-top: 0;
        }
        .deep-content p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 2;
            margin-bottom: 14px;
        }
        .deep-content p strong {
            color: var(--text-main);
            font-weight: 500;
        }

        /* === 流程列表 === */
        .process-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            margin-top: 20px;
        }
        .process-item {
            display: flex;
            gap: 20px;
            padding: 22px 0;
            border-bottom: 1px solid var(--border);
            align-items: flex-start;
        }
        .process-item:last-child {
            border-bottom: none;
        }
        .process-num {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(225, 6, 0, 0.1);
            border: 1px solid rgba(225, 6, 0, 0.3);
            color: var(--primary);
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }
        .process-body h4 {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }
        .process-body p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* === 底部 CTA === */
        .cta-section {
            background: var(--bg-section);
            border-radius: var(--radius-card-lg);
            border: 1px solid var(--border);
            padding: 50px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 50% 0%, rgba(225, 6, 0, 0.2) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-section .container-inner {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.9;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* === 页脚 === */
        .footer {
            background: #0A0A0D;
            border-top: 1px solid var(--border);
            padding: 50px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand .logo-mark {
            display: inline-block;
            width: 20px;
            height: 20px;
            background: var(--primary);
            border-radius: 4px;
            position: relative;
        }
        .footer-brand .logo-mark::after {
            content: '';
            position: absolute;
            inset: 4px;
            background: #fff;
            border-radius: 2px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-links {
            display: flex;
            gap: 16px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 13px;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
        }

        /* === 响应式 === */
        @media (max-width: 1199px) {
            .header-nav a {
                padding: 8px 10px;
                font-size: 14px;
            }
            .cat-hero-text h1 {
                font-size: 40px;
            }
        }
        @media (max-width: 991px) {
            .header-nav {
                gap: 2px;
            }
            .header-nav a {
                padding: 8px 8px;
                font-size: 13px;
            }
            .cat-hero-top {
                flex-direction: column;
            }
            .cat-hero-img img {
                height: 240px;
            }
            .interleave-img img {
                height: 260px;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-content {
                padding: 30px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 767px) {
            :root {
                --nav-height: 60px;
                --section-gap-desktop: 50px;
                --section-gap-tablet: 40px;
            }
            .header-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(15, 15, 18, 0.98);
                flex-direction: column;
                align-items: flex-start;
                padding: 30px 24px;
                gap: 8px;
                display: none;
                z-index: 999;
            }
            .header-nav.open {
                display: flex;
            }
            .header-nav a {
                font-size: 18px;
                padding: 14px 0;
                width: 100%;
                border-bottom: 1px solid var(--border);
            }
            .header-nav a.active::after {
                bottom: -1px;
                left: 0;
                right: 0;
                height: 2px;
            }
            .header-burger {
                display: flex;
            }
            .header-cta .btn-primary {
                display: none;
            }
            .header-cta .btn-primary.mobile-show {
                display: inline-flex;
            }
            .cat-hero {
                padding: 40px 0 30px;
            }
            .cat-hero-text h1 {
                font-size: 32px;
            }
            .cat-hero-text .hero-desc {
                font-size: 16px;
            }
            .hero-badges {
                gap: 20px;
            }
            .hero-badge .num {
                font-size: 24px;
            }
            .interleave {
                flex-direction: column !important;
                gap: 24px;
                margin-bottom: 40px;
            }
            .interleave-img img {
                height: 200px;
            }
            .interleave-content h2 {
                font-size: 22px;
            }
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item .stat-num {
                font-size: 28px;
            }
            .deep-content {
                padding: 24px 18px;
            }
            .cta-section {
                padding: 36px 20px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .cat-hero-text h1 {
                font-size: 28px;
            }
            .section-title {
                font-size: 24px;
            }
            .section-desc {
                font-size: 15px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 18px;
                font-size: 14px;
            }
            .interleave-img img {
                height: 170px;
            }
            .stats-strip {
                grid-template-columns: 1fr;
            }
            .deep-content h3 {
                font-size: 18px;
            }
            .deep-content p {
                font-size: 15px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #E10600;
            --primary-hover: #FF2D2D;
            --primary-active: #B30500;
            --bg-base: #0F0F12;
            --bg-section: #1A1A1F;
            --bg-card: #1E1E24;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(225, 6, 0, 0.5);
            --text-main: #E8E8E8;
            --text-secondary: #9A9A9A;
            --text-muted: #6B6B6B;
            --glow: rgba(225, 6, 0, 0.8);
            --radius-card: 10px;
            --radius-card-lg: 16px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.55);
            --transition: 0.3s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1240px;
            --container-padding: 24px;
            --nav-height: 68px;
            --section-gap-desktop: 60px;
            --section-gap-tablet: 50px;
            --section-gap-mobile: 36px;
        }

        *,
        *::before,
        *::after {
            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-stack);
            background-color: var(--bg-base);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.85;
            font-weight: 400;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: var(--nav-height);
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
            transition: all var(--transition);
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }

        .section {
            padding: var(--section-gap-desktop) 0;
            position: relative;
        }

        .section-alt {
            background-color: var(--bg-section);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(225, 6, 0, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            border: 1px solid rgba(225, 6, 0, 0.25);
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 18px;
        }

        .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
        }

        /* === 导航栏 === */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(15, 15, 18, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .header-logo .logo-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--primary);
            border-radius: 6px;
            position: relative;
            flex-shrink: 0;
        }

        .header-logo .logo-mark::after {
            content: '';
            position: absolute;
            inset: 6px;
            background: #fff;
            border-radius: 3px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .header-nav a {
            font-size: 15px;
            font-weight: 500;
            color: #C8C8C8;
            padding: 8px 16px;
            border-radius: 4px;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }

        .header-nav a:hover {
            color: #FFFFFF;
        }

        .header-nav a.active {
            color: #FFFFFF;
        }

        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px var(--glow);
            border-radius: 2px;
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            display: inline-block;
            text-align: center;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: scale(1.03);
            color: #fff;
            box-shadow: 0 6px 20px rgba(225, 6, 0, 0.4);
        }

        .btn-primary:active {
            background: var(--primary-active);
            transform: scale(0.97);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 500;
            transition: all var(--transition);
            display: inline-block;
            text-align: center;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: #fff;
            background: rgba(225, 6, 0, 0.08);
        }

        .header-burger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 4px;
        }

        .header-burger span {
            display: block;
            width: 24px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }

        /* === Hero === */
        .hero-inner {
            background: linear-gradient(135deg, rgba(30, 30, 36, 0.95) 0%, rgba(15, 15, 18, 0.98) 100%);
            border: 1px solid var(--border);
            border-radius: var(--radius-card-lg);
            padding: 56px 48px;
            display: flex;
            gap: 48px;
            align-items: stretch;
            min-height: 420px;
            position: relative;
            overflow: hidden;
        }

        .hero-inner::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(225, 6, 0, 0.25) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-left {
            flex: 1.2;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            z-index: 1;
        }

        .hero-left .section-label {
            align-self: flex-start;
        }

        .hero-left h1 {
            font-size: 48px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.15;
            margin-bottom: 20px;
        }

        .hero-left .hero-desc {
            font-size: 18px;
            color: #B0B0B0;
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-right {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 16px;
            justify-content: center;
            position: relative;
            z-index: 1;
        }

        .hero-stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: all var(--transition);
        }

        .hero-stat-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .hero-stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            font-variant-numeric: tabular-nums;
        }

        .hero-stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* === 数据总览 === */
        .overview-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 48px;
        }

        .overview-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: center;
            transition: all var(--transition);
        }

        .overview-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .overview-card .number {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            font-variant-numeric: tabular-nums;
            margin-bottom: 6px;
        }

        .overview-card .number span {
            color: var(--primary);
        }

        .overview-card .label {
            font-size: 14px;
            color: var(--text-secondary);
        }

        /* === 数据表格 === */
        .table-wrapper {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card-lg);
            padding: 32px;
            overflow-x: auto;
            margin-bottom: 48px;
        }

        .table-wrapper h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 24px;
            letter-spacing: -0.01em;
        }

        .data-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }

        .data-table thead th {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            text-align: left;
            padding: 14px 16px;
            border-bottom: 2px solid var(--primary);
            background: rgba(225, 6, 0, 0.08);
            white-space: nowrap;
        }

        .data-table tbody td {
            font-size: 15px;
            color: var(--text-main);
            padding: 14px 16px;
            border-bottom: 1px solid var(--border);
            white-space: nowrap;
        }

        .data-table tbody tr:hover td {
            background: rgba(225, 6, 0, 0.05);
        }

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

        .data-table .td-highlight {
            color: var(--primary);
            font-weight: 600;
        }

        .data-table .td-tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 14px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(225, 6, 0, 0.12);
            color: var(--primary);
            border: 1px solid rgba(225, 6, 0, 0.25);
        }

        /* === 图表占位区 === */
        .chart-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 24px;
            margin-bottom: 48px;
        }

        .chart-panel {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card-lg);
            padding: 32px;
        }

        .chart-panel h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }

        .chart-bars {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .chart-bar-item {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .chart-bar-label {
            flex: 0 0 100px;
            font-size: 14px;
            color: var(--text-secondary);
            white-space: nowrap;
        }

        .chart-bar-track {
            flex: 1;
            height: 28px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 14px;
            overflow: hidden;
            position: relative;
        }

        .chart-bar-fill {
            height: 100%;
            background: var(--primary);
            border-radius: 14px;
            transition: width 1s ease-out;
            box-shadow: 0 0 12px rgba(225, 6, 0, 0.4);
        }

        .chart-bar-value {
            flex: 0 0 50px;
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            text-align: right;
            font-variant-numeric: tabular-nums;
        }

        .chart-donuts {
            display: flex;
            justify-content: space-around;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
            min-height: 100%;
        }

        .donut-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }

        .donut-ring {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            background: conic-gradient(var(--primary) 0% 72%, rgba(255, 255, 255, 0.08) 72% 100%);
        }

        .donut-ring::before {
            content: '';
            position: absolute;
            inset: 10px;
            background: var(--bg-card);
            border-radius: 50%;
        }

        .donut-ring .donut-text {
            position: relative;
            z-index: 1;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }

        .donut-label {
            font-size: 13px;
            color: var(--text-secondary);
            text-align: center;
        }

        /* === 正文区 === */
        .prose {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card-lg);
            padding: 40px 44px;
            max-width: 100%;
        }

        .prose h2 {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }

        .prose h3 {
            font-size: 20px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
            margin-top: 28px;
        }

        .prose p {
            font-size: 16px;
            color: var(--text-main);
            line-height: 1.9;
            margin-bottom: 16px;
        }

        .prose ul {
            list-style: none;
            padding-left: 0;
            margin-bottom: 20px;
        }

        .prose ul li {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            padding-left: 24px;
            position: relative;
            margin-bottom: 8px;
        }

        .prose ul li::before {
            content: '';
            position: absolute;
            left: 6px;
            top: 13px;
            width: 6px;
            height: 6px;
            background: var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 6px rgba(225, 6, 0, 0.5);
        }

        .prose blockquote {
            border-left: 3px solid var(--primary);
            background: rgba(225, 6, 0, 0.06);
            padding: 16px 20px;
            border-radius: 0 6px 6px 0;
            margin: 20px 0;
            font-size: 15px;
            color: var(--text-secondary);
            font-style: italic;
        }

        /* === FAQ === */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-hover);
        }

        .faq-question {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            user-select: none;
        }

        .faq-question::after {
            content: '+';
            font-size: 22px;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        .faq-item.open .faq-question::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.85;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px;
        }

        /* === CTA === */
        .cta-section {
            background: linear-gradient(135deg, rgba(30, 30, 36, 0.98) 0%, rgba(20, 20, 25, 0.98) 100%);
            border: 1px solid var(--border);
            border-radius: var(--radius-card-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            left: 50%;
            transform: translateX(-50%);
            width: 400px;
            height: 200px;
            background: radial-gradient(ellipse, rgba(225, 6, 0, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            position: relative;
        }

        .cta-section p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 32px;
            line-height: 1.85;
            position: relative;
        }

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

        /* === 页脚 === */
        .footer {
            background: #0A0A0C;
            border-top: 1px solid var(--border);
            padding: 56px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-brand .logo-mark {
            display: inline-block;
            width: 24px;
            height: 24px;
            background: var(--primary);
            border-radius: 5px;
            position: relative;
            flex-shrink: 0;
        }

        .footer-brand .logo-mark::after {
            content: '';
            position: absolute;
            inset: 5px;
            background: #fff;
            border-radius: 2px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-links {
            display: flex;
            gap: 16px;
            margin-left: auto;
        }

/* 移动端导航补充样式 */
            @media (max-width: 767px) {
                .header-nav {
                    display: none;
                    position: fixed;
                    top: var(--nav-height);
                    left: 0;
                    right: 0;
                    background: rgba(15, 15, 18, 0.98);
                    flex-direction: column;
                    align-items: flex-start;
                    padding: 20px 24px 32px;
                    gap: 4px;
                    border-bottom: 1px solid var(--border);
                    z-index: 999;
                }
                .header-nav.show {
                    display: flex;
                }
                .header-nav a {
                    width: 100%;
                    padding: 12px 16px;
                    font-size: 16px;
                }
                .header-nav a.active::after {
                    bottom: 4px;
                    left: 16px;
                    right: auto;
                    width: 30px;
                    box-shadow: 0 0 8px var(--glow);
                }
                .header-cta .btn-primary {
                    display: none;
                }
                .header-burger {
                    display: flex;
                }
                .hero-inner {
                    flex-direction: column;
                    gap: 28px;
                    padding: 32px 24px;
                }
                .hero-left h1 {
                    font-size: 32px;
                }
                .hero-actions {
                    flex-direction: column;
                    align-items: center;
                }
                .hero-actions .btn-primary,
                .hero-actions .btn-secondary {
                    width: 100%;
                    text-align: center;
                }
                .overview-grid {
                    grid-template-columns: repeat(2, 1fr);
                    gap: 14px;
                }
                .chart-grid {
                    grid-template-columns: 1fr;
                }
                .table-wrapper {
                    padding: 20px 16px;
                }
                .prose {
                    padding: 28px 20px;
                }
                .cta-section {
                    padding: 40px 24px;
                }
                .footer-grid {
                    grid-template-columns: 1fr;
                    gap: 28px;
                }
                .footer-bottom {
                    flex-direction: column;
                    align-items: flex-start;
                    gap: 8px;
                }
                .footer-links {
                    margin-left: 0;
                }
            }
            @media (min-width: 768px) and (max-width: 991px) {
                .overview-grid {
                    grid-template-columns: repeat(2, 1fr);
                }
                .chart-grid {
                    grid-template-columns: 1fr;
                }
                .hero-inner {
                    flex-direction: column;
                    gap: 32px;
                }
                .footer-grid {
                    grid-template-columns: 1fr 1fr;
                }
            }

/* roulang page: category6 */
:root {
            --primary: #E10600;
            --primary-hover: #FF2D2D;
            --primary-active: #B30500;
            --bg-base: #0F0F12;
            --bg-section: #1A1A1F;
            --bg-card: #1E1E24;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(225, 6, 0, 0.5);
            --text-main: #E8E8E8;
            --text-secondary: #9A9A9A;
            --text-muted: #6B6B6B;
            --glow: rgba(225, 6, 0, 0.8);
            --radius-card: 10px;
            --radius-card-lg: 16px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.55);
            --transition: 0.3s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1240px;
            --container-padding: 24px;
            --nav-height: 60px;
            --section-gap-desktop: 60px;
            --section-gap-tablet: 50px;
            --section-gap-mobile: 36px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-stack);
            background-color: var(--bg-base);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.85;
            font-weight: 400;
            overflow-x: hidden;
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
            transition: all var(--transition);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }
        .section {
            padding: var(--section-gap-desktop) 0;
            position: relative;
        }
        .section-alt {
            background-color: var(--bg-section);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(225, 6, 0, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            border: 1px solid rgba(225, 6, 0, 0.25);
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 18px;
        }
        .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
        }
        .section-header-center {
            text-align: center;
        }
        .section-header-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* 导航栏 */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(15, 15, 18, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }
        .header-logo .logo-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--primary);
            border-radius: 6px;
            position: relative;
            flex-shrink: 0;
        }
        .header-logo .logo-mark::after {
            content: '';
            position: absolute;
            inset: 6px;
            background: #fff;
            border-radius: 3px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }
        .header-logo span {
            white-space: nowrap;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
        }
        .header-nav a {
            font-size: 14px;
            font-weight: 500;
            color: #C8C8C8;
            padding: 8px 12px;
            border-radius: 4px;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .header-nav a:hover {
            color: #FFFFFF;
        }
        .header-nav a.active {
            color: #FFFFFF;
        }
        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
            box-shadow: 0 0 8px var(--glow);
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            border: 1px solid var(--primary);
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: scale(1.03);
            box-shadow: 0 4px 14px rgba(225, 6, 0, 0.4);
        }
        .btn-primary:active {
            background: var(--primary-active);
            border-color: var(--primary-active);
            transform: scale(0.98);
        }
        .header-burger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 6px;
        }
        .header-burger span {
            display: block;
            width: 22px;
            height: 2px;
            background: #C8C8C8;
            border-radius: 2px;
            transition: all var(--transition);
        }

        /* 移动端导航面板 */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 15, 18, 0.98);
            z-index: 999;
            padding: 24px;
            flex-direction: column;
            gap: 6px;
            overflow-y: auto;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            font-size: 18px;
            font-weight: 500;
            color: #C8C8C8;
            padding: 14px 16px;
            border-radius: 8px;
            border-left: 3px solid transparent;
            transition: all var(--transition);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: #fff;
            background: rgba(225, 6, 0, 0.08);
            border-left-color: var(--primary);
            box-shadow: 0 0 8px rgba(225, 6, 0, 0.3);
        }
        .mobile-nav .btn-primary {
            margin-top: 16px;
            text-align: center;
            padding: 14px 20px;
            font-size: 16px;
        }

        /* 分类页 Hero */
        .page-hero {
            position: relative;
            padding: calc(var(--nav-height) + 60px) 0 50px;
            background: var(--bg-base);
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 55%;
            height: 100%;
            background: linear-gradient(135deg, rgba(225, 6, 0, 0.15) 0%, transparent 60%);
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .page-hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .page-hero-content h1 {
            font-size: 44px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.2;
            margin: 0 0 16px;
        }
        .page-hero-content h1 .highlight {
            color: var(--primary);
            position: relative;
        }
        .page-hero-content h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            right: 0;
            height: 6px;
            background: rgba(225, 6, 0, 0.3);
            border-radius: 3px;
            z-index: -1;
        }
        .page-hero-desc {
            font-size: 17px;
            color: #B0B0B0;
            line-height: 1.9;
            margin-bottom: 28px;
            max-width: 560px;
        }
        .page-hero-cta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: #C8C8C8;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 14px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            white-space: nowrap;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: #fff;
        }
        .btn-secondary:active {
            background: rgba(225, 6, 0, 0.1);
        }
        .page-hero-image {
            border-radius: var(--radius-card-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card-hover);
            border: 1px solid var(--border);
            position: relative;
        }
        .page-hero-image img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .page-hero-image:hover img {
            transform: scale(1.03);
        }
        .page-hero-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(transparent, rgba(15, 15, 18, 0.8));
            pointer-events: none;
        }
        .hero-stats {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-stat-num {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            font-variant-numeric: tabular-nums;
        }
        .hero-stat-label {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }

        /* 板块通用样式 */
        .culture-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .culture-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .culture-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
        }
        .culture-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: rgba(225, 6, 0, 0.12);
            border: 1px solid rgba(225, 6, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            color: var(--primary);
        }
        .culture-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 10px;
            line-height: 1.4;
        }
        .culture-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        /* FAQ 手风琴 */
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(225, 6, 0, 0.3);
        }
        .faq-item.active {
            border-color: var(--border-hover);
            box-shadow: 0 0 20px rgba(225, 6, 0, 0.15);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            gap: 16px;
            user-select: none;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary-hover);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
            transition: transform var(--transition);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            margin: 0;
        }
        .faq-answer ul {
            margin: 10px 0 0;
            padding-left: 20px;
        }
        .faq-answer ul li {
            margin-bottom: 6px;
        }

        /* 正文区 */
        .content-block {
            max-width: 860px;
            margin: 0 auto;
        }
        .content-block h3 {
            font-size: 22px;
            font-weight: 600;
            color: #fff;
            margin: 28px 0 12px;
            line-height: 1.4;
        }
        .content-block p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 2;
            margin: 0 0 16px;
        }
        .content-block .highlight-text {
            color: var(--text-main);
            font-weight: 500;
        }

        /* CTA 区 */
        .cta-section {
            background: linear-gradient(135deg, rgba(225, 6, 0, 0.12) 0%, var(--bg-section) 50%, var(--bg-base) 100%);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            text-align: center;
        }
        .cta-section .section-title {
            font-size: 32px;
        }
        .cta-section .section-desc {
            margin-left: auto;
            margin-right: auto;
            margin-bottom: 28px;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* 页脚 */
        .footer {
            background: var(--bg-base);
            border-top: 1px solid var(--border);
            padding: 50px 0 28px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand .logo-mark {
            display: inline-block;
            width: 20px;
            height: 20px;
            background: var(--primary);
            border-radius: 4px;
            position: relative;
        }
        .footer-brand .logo-mark::after {
            content: '';
            position: absolute;
            inset: 4px;
            background: #fff;
            border-radius: 2px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary-hover);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom span {
            white-space: nowrap;
        }
        .footer-links {
            display: flex;
            gap: 16px;
        }
        .footer-links a {
            font-size: 12px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary-hover);
        }

        /* 底部固定转化条 */
        .sticky-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 998;
            background: rgba(15, 15, 18, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-hover);
            padding: 12px 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            transform: translateY(100%);
            transition: transform 0.4s ease;
        }
        .sticky-cta.visible {
            transform: translateY(0);
        }
        .sticky-cta-text {
            font-size: 14px;
            color: #C8C8C8;
            font-weight: 500;
            white-space: nowrap;
        }
        .sticky-cta .btn-primary {
            padding: 10px 20px;
            font-size: 13px;
        }

        /* 响应式 */
        @media (max-width: 1199px) {
            .container {
                padding: 0 20px;
            }
            .header-nav a {
                font-size: 13px;
                padding: 8px 9px;
            }
        }
        @media (max-width: 991px) {
            :root {
                --section-gap-desktop: 50px;
            }
            .header-nav {
                display: none;
            }
            .header-burger {
                display: flex;
            }
            .page-hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .page-hero-content h1 {
                font-size: 36px;
            }
            .page-hero-image img {
                height: 240px;
            }
            .culture-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 767px) {
            :root {
                --section-gap-desktop: 42px;
                --container-padding: 16px;
            }
            .section-title {
                font-size: 26px;
            }
            .page-hero {
                padding-top: calc(var(--nav-height) + 40px);
                padding-bottom: 36px;
            }
            .page-hero-content h1 {
                font-size: 30px;
                line-height: 1.3;
            }
            .page-hero-desc {
                font-size: 15px;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat-num {
                font-size: 22px;
            }
            .culture-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .culture-card {
                padding: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .sticky-cta {
                flex-direction: column;
                gap: 8px;
                padding: 10px 16px;
                text-align: center;
            }
            .sticky-cta-text {
                white-space: normal;
                font-size: 13px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 18px;
                font-size: 13px;
            }
            .cta-section .section-title {
                font-size: 26px;
            }
            .content-block {
                padding: 0 8px;
            }
            .content-block h3 {
                font-size: 19px;
            }
            .content-block p {
                font-size: 15px;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 14px;
            }
            .faq-answer {
                padding: 0 18px;
                font-size: 14px;
            }
            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }
        }
        @media (max-width: 575px) {
            .page-hero-content h1 {
                font-size: 26px;
            }
            .page-hero-cta {
                flex-direction: column;
                gap: 10px;
            }
            .page-hero-cta a {
                width: 100%;
                text-align: center;
            }
            .hero-stats {
                gap: 12px;
            }
            .hero-stat-num {
                font-size: 20px;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #E10600;
            --primary-hover: #FF2D2D;
            --primary-active: #B30500;
            --bg-base: #0F0F12;
            --bg-section: #1A1A1F;
            --bg-card: #1E1E24;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(225, 6, 0, 0.5);
            --text-main: #E8E8E8;
            --text-secondary: #9A9A9A;
            --text-muted: #6B6B6B;
            --glow: rgba(225, 6, 0, 0.8);
            --radius-card: 10px;
            --radius-card-lg: 16px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.55);
            --transition: 0.3s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1240px;
            --container-padding: 24px;
            --nav-height: 68px;
            --section-gap-desktop: 60px;
            --section-gap-tablet: 50px;
            --section-gap-mobile: 36px;
        }

        *,
        *::before,
        *::after {
            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-stack);
            background-color: var(--bg-base);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.85;
            font-weight: 400;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: var(--nav-height);
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
            transition: all var(--transition);
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }

        .section {
            padding: var(--section-gap-desktop) 0;
            position: relative;
        }

        .section-alt {
            background-color: var(--bg-section);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(225, 6, 0, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            border: 1px solid rgba(225, 6, 0, 0.25);
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 18px;
        }

        .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
        }

        .section-header-center {
            text-align: center;
        }

        .section-header-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* === 导航栏 === */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(15, 15, 18, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .header-logo .logo-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--primary);
            border-radius: 6px;
            position: relative;
            flex-shrink: 0;
        }

        .header-logo .logo-mark::after {
            content: '';
            position: absolute;
            inset: 6px;
            background: #fff;
            border-radius: 3px;
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }

        .header-logo span {
            white-space: nowrap;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            flex: 1;
            justify-content: center;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

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

        .header-nav a {
            font-size: 15px;
            font-weight: 500;
            color: #C8C8C8;
            padding: 8px 14px;
            border-radius: 4px;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }

        .header-nav a:hover {
            color: #FFFFFF;
        }

        .header-nav a.active {
            color: #FFFFFF;
        }

        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px var(--glow);
            border-radius: 1px;
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            white-space: nowrap;
            border: 1px solid var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: scale(1.03);
            box-shadow: 0 4px 20px rgba(225, 6, 0, 0.35);
        }

        .btn-primary:active {
            background: var(--primary-active);
            border-color: var(--primary-active);
            transform: scale(0.98);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #C8C8C8;
            font-weight: 500;
            font-size: 15px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: #fff;
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-weight: 500;
            font-size: 15px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            border: 1px solid #fff;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-ghost:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .header-burger {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 8px;
            border-radius: 6px;
            border: 1px solid var(--border);
            background: var(--bg-card);
        }

        .header-burger span {
            display: block;
            width: 100%;
            height: 2px;
            background: #fff;
            border-radius: 1px;
            transition: all var(--transition);
        }

        .header-burger span:nth-child(2) {
            width: 70%;
        }

        .header-burger span:nth-child(3) {
            width: 85%;
        }

        .header-burger:hover span {
            background: var(--primary);
        }

        /* === Hero === */
        .hero {
            position: relative;
            min-height: 72vh;
            display: flex;
            align-items: center;
            padding: 70px 0;
            background-color: var(--bg-base);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(225, 6, 0, 0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(225, 6, 0, 0.08) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 52px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 22px;
        }

        .hero-content h1 .highlight {
            color: var(--primary);
        }

        .hero-content p {
            font-size: 19px;
            color: #B0B0B0;
            line-height: 1.9;
            max-width: 520px;
            margin-bottom: 36px;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .hero-badges {
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
        }

        .hero-badge {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-badge-number {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .hero-badge-number span {
            color: var(--primary);
        }

        .hero-badge-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-card-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            background: var(--bg-card);
            box-shadow: var(--shadow-card);
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            min-height: 380px;
            object-fit: cover;
            opacity: 0.85;
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 15, 18, 0.9) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero-visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px 28px;
            z-index: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .hero-visual-overlay span:first-child {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.06em;
        }

        .hero-visual-overlay span:last-child {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }

        /* === 精选列表 === */
        .featured-list-section {
            background: var(--bg-section);
        }

        .featured-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .featured-item {
            display: grid;
            grid-template-columns: 260px 1fr auto;
            gap: 28px;
            align-items: center;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            transition: all var(--transition);
            cursor: pointer;
        }

        .featured-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .featured-item-image {
            border-radius: 8px;
            overflow: hidden;
            aspect-ratio: 1 / 0.7;
            flex-shrink: 0;
        }

        .featured-item-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .featured-item:hover .featured-item-image img {
            transform: scale(1.05);
        }

        .featured-item-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .featured-item-body p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .featured-item-meta {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
        }

        .featured-item-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .featured-item-meta span::before {
            content: '';
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--primary);
        }

        .atured-item-arrow {
    margin-left: auto;
    color: var(--text-muted);
    font-size: 22px;
    font-weight: 300;
    transition: all var(--transition);
}
.featured-item:hover .featured-item-arrow {
    color: var(--primary);
    transform: translateX(4px);
}

/* === 深度正文区 === */
.deep-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}
.deep-content .deep-text h2 {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
    letter-spacing: -0.01em;
}
.deep-content .deep-text h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 12px;
    margin-top: 24px;
}
.deep-content .deep-text p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 2;
    margin-bottom: 16px;
}
.deep-content .deep-image {
    border-radius: var(--radius-card-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
}
.deep-content .deep-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    aspect-ratio: 4 / 3;
}

/* === CTA 区 === */
.cta-section {
    background: var(--bg-base);
}
.cta-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-card-lg);
    padding: 50px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
    flex-wrap: wrap;
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
}
.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(225,6,0,0.2) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.cta-box-content h2 {
    font-size: 30px;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.01em;
    margin-bottom: 12px;
}
.cta-box-content p {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.9;
}
.cta-box-actions {
    display: flex;
    gap: 14px;
    flex-shrink: 0;
}

/* === 页脚 === */
.footer {
    background: #0B0B0E;
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
    color: var(--text-secondary);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand h3 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 14px;
}
.footer-brand h3 .logo-mark {
    display: inline-block;
    width: 22px;
    height: 22px;
    background: var(--primary);
    border-radius: 4px;
    position: relative;
}
.footer-brand h3 .logo-mark::after {
    content: '';
    position: absolute;
    inset: 4px;
    background: #fff;
    border-radius: 2px;
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
}
.footer-brand p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.8;
    max-width: 300px;
}
.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 16px;
}
.footer-col ul {
    list-style: none;
}
.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul li a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color var(--transition);
}
.footer-col ul li a:hover {
    color: var(--primary);
}
.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 24px;
    align-items: center;
    justify-content: center;
    padding-top: 30px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-muted);
}
.footer-links {
    display: flex;
    gap: 16px;
}
.footer-links a {
    color: var(--text-muted);
    transition: color var(--transition);
}
.footer-links a:hover {
    color: var(--primary);
}

/* === 响应式 === */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-content h1 {
        font-size: 42px;
    }
    .deep-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .featured-item {
        grid-template-columns: 200px 1fr auto;
        gap: 18px;
        padding: 16px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    .header-nav a {
        padding: 8px 10px;
        font-size: 14px;
    }
}
@media (max-width: 767px) {
    :root {
        --section-gap-desktop: 50px;
        --section-gap-tablet: 50px;
        --section-gap-mobile: 36px;
    }
    .hero {
        padding: 50px 0;
        min-height: auto;
    }
    .hero-content h1 {
        font-size: 34px;
    }
    .section-title {
        font-size: 28px;
    }
    .header-nav {
        display: none;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(15, 15, 18, 0.98);
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        gap: 0;
        padding: 20px 24px;
        z-index: 999;
        overflow-y: auto;
    }
    .header-nav.open {
        display: flex;
    }
    .header-nav a {
        padding: 16px 8px;
        font-size: 18px;
        border-bottom: 1px solid var(--border);
        border-radius: 0;
        display: flex;
        align-items: center;
    }
    .header-nav a.active::after {
        display: none;
    }
    .header-nav a.active {
        border-left: 3px solid var(--primary);
        box-shadow: 0 0 8px rgba(225,6,0,0.2);
        padding-left: 12px;
    }
    .header-cta .btn-primary {
        display: none;
    }
    .header-burger {
        display: flex;
    }
    .featured-item {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    .featured-item-image {
        aspect-ratio: 16 / 9;
    }
    .featured-item-arrow {
        position: absolute;
        right: 16px;
        top: 16px;
    }
    .cta-box {
        padding: 30px 20px;
        flex-direction: column;
        align-items: flex-start;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}
@media (max-width: 520px) {
    .hero-content h1 {
        font-size: 30px;
    }
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    .btn-primary,
    .btn-secondary,
    .btn-ghost {
        width: 100%;
    }
    .hero-badges {
        gap: 15px;
    }
    .hero-badge-number {
        font-size: 22px;
    }
    .section-title {
        font-size: 24px;
    }
    .cta-box-actions {
        width: 100%;
        flex-direction: column;
    }
    .cta-box-actions .btn-primary {
        width: 100%;
    }
}