/* roulang page: index */
:root {
            --primary: #F0532E;
            --primary-hover: #D63D16;
            --primary-active: #B9360F;
            --primary-soft: rgba(240, 83, 46, 0.05);
            --primary-ring: rgba(240, 83, 46, 0.25);
            --dark: #1F2937;
            --darker: #111827;
            --accent: #F6B73C;
            --bg-warm: #FAF7F2;
            --bg-light: #F7F8FA;
            --text-main: #1F2937;
            --text-secondary: #4B5563;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border-light: rgba(0, 0, 0, 0.06);
            --border-strong: rgba(0, 0, 0, 0.1);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.10);
            --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.08);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 导航样式 */
        .site-header {
            position: fixed;
            top: 24px;
            left: 32px;
            right: 32px;
            z-index: 60;
            transition: top 0.3s ease, left 0.3s ease, right 0.3s ease;
        }
        .site-header.scrolled {
            top: 0;
            left: 12px;
            right: 12px;
        }
        .site-header.scrolled .site-nav {
            border-radius: 14px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
            border-bottom: 1px solid var(--border-light);
        }
        .site-nav {
            background: rgba(255, 255, 255, 0.96);
            border-radius: 20px;
            box-shadow: var(--shadow-nav);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            transition: border-radius 0.3s ease, box-shadow 0.3s ease;
        }
        .nav-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .nav-logo .logo-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 2px;
            position: relative;
            white-space: nowrap;
            transition: color 0.2s ease;
        }
        .nav-links li a:hover {
            color: var(--primary);
        }
        .nav-links li a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 10px 22px;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.2s ease;
            border: 2px solid transparent;
            line-height: 1.4;
            text-align: center;
            gap: 6px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 2px 8px rgba(240, 83, 46, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(240, 83, 46, 0.35);
        }
        .btn-primary:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }
        .btn-primary:active {
            background: var(--primary-active);
            border-color: var(--primary-active);
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(240, 83, 46, 0.3);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-soft);
            transform: translateY(-2px);
        }
        .btn-secondary:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }
        .btn-secondary:active {
            transform: translateY(0);
            background: rgba(240, 83, 46, 0.1);
        }
        .btn-sm {
            padding: 6px 16px;
            font-size: 0.8rem;
            border-radius: 8px;
        }
        .btn-xs {
            padding: 4px 12px;
            font-size: 0.75rem;
            border-radius: 6px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            color: var(--text-main);
        }
        .nav-toggle:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }
        .nav-toggle svg {
            width: 24px;
            height: 24px;
            display: block;
        }

        /* 移动端导航 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 55;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.25s ease;
        }
        .mobile-menu.open {
            opacity: 1;
            pointer-events: auto;
            display: block;
        }
        .mobile-menu-panel {
            position: absolute;
            top: 80px;
            left: 12px;
            right: 12px;
            background: #fff;
            border-radius: 20px;
            box-shadow: var(--shadow-md);
            padding: 24px;
            transform: translateY(-12px);
            transition: transform 0.25s ease;
        }
        .mobile-menu.open .mobile-menu-panel {
            transform: translateY(0);
        }
        .mobile-menu-panel ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-menu-panel ul li a {
            display: block;
            padding: 12px 16px;
            border-radius: 10px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.2s ease;
        }
        .mobile-menu-panel ul li a:hover,
        .mobile-menu-panel ul li a.active {
            background: var(--primary-soft);
            color: var(--primary);
        }

        /* 首屏 Hero */
        .hero {
            position: relative;
            min-height: 82vh;
            display: flex;
            align-items: center;
            padding-top: calc(var(--nav-height) + 40px);
            padding-bottom: 60px;
            background: linear-gradient(180deg, #FAF7F2 0%, #F7F4EE 100%);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            opacity: 0.12;
            background-image: url('/assets/images/ae23de8baef39898.webp');
            background-size: cover;
            background-position: center;
        }
        .hero-content {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-left {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(240, 83, 46, 0.08);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            letter-spacing: 0.05em;
            width: fit-content;
        }
        .hero-tag .tag-dot {
            width: 6px;
            height: 6px;
            background: var(--primary);
            border-radius: 50%;
        }
        .hero h1 {
            font-size: 2.8rem;
            line-height: 1.25;
            font-weight: 700;
            margin: 0;
            color: var(--dark);
            letter-spacing: -0.01em;
        }
        .hero h1 .h1-accent {
            color: var(--primary);
        }
        .hero-subtitle {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 6px;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            margin-top: 12px;
        }
        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-stat-number {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
        }
        .hero-stat-label {
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .hero-right {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }
        .hero-image-wrapper {
            width: 100%;
            max-width: 480px;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            background: #fff;
        }
        .hero-image-wrapper img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            border-radius: 20px;
        }
        .hero-image-wrapper .hero-img-caption {
            padding: 14px 18px;
            background: #fff;
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .hero-img-badge {
            background: var(--primary-soft);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.72rem;
            padding: 4px 10px;
            border-radius: 6px;
        }

        /* 通用板块 */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-light);
        }
        .section-warm {
            background: var(--bg-warm);
        }
        .section-dark {
            background: var(--darker);
            color: #fff;
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--dark);
            margin: 0 0 12px 0;
            line-height: 1.4;
        }
        .section-title .title-accent {
            color: var(--primary);
        }
        .section-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 640px;
            margin: 0 0 32px 0;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        /* 卡片 */
        .card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(240, 83, 46, 0.15);
        }
        .card-body {
            padding: 20px;
        }
        .card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--dark);
            margin: 0 0 8px 0;
            line-height: 1.4;
        }
        .card-text {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        .card-footer {
            padding: 12px 20px;
            border-top: 1px solid var(--border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #FDFCFA;
        }
        .card-date {
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .card-img-sm {
            height: 140px;
        }
        .card-link {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all 0.2s ease;
        }
        .card-link:hover {
            color: var(--primary-hover);
            gap: 6px;
        }
        .card-link:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* 数据条 */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
        }
        .data-item {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all 0.25s ease;
        }
        .data-item:hover {
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }
        .data-number {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 4px;
        }
        .data-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 两列布局 */
        .grid-2col {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 32px;
            align-items: start;
        }
        @media (max-width: 900px) {
            .grid-2col {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* 热榜 */
        .hot-list {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .hot-list-header {
            background: var(--dark);
            color: #fff;
            padding: 14px 20px;
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hot-list-header .hot-icon {
            color: var(--accent);
        }
        .hot-list-body {
            padding: 8px 0;
        }
        .hot-list-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 20px;
            border-bottom: 1px solid var(--border-light);
            transition: background 0.2s ease;
        }
        .hot-list-item:last-child {
            border-bottom: none;
        }
        .hot-list-item:hover {
            background: #FDFAF7;
        }
        .hot-rank {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .hot-rank.top1 {
            background: var(--accent);
            color: #1F2937;
        }
        .hot-info {
            flex: 1;
            min-width: 0;
        }
        .hot-name {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--dark);
            line-height: 1.4;
        }
        .hot-meta {
            font-size: 0.72rem;
            color: var(--text-muted);
        }
        .hot-score {
            font-weight: 700;
            color: var(--primary);
            font-size: 0.85rem;
            white-space: nowrap;
        }

        /* 专题条 */
        .topic-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .topic-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .topic-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: #FFF9F7;
            transform: translateY(-2px);
        }
        .topic-tag:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }
        .topic-tag .topic-dot {
            width: 6px;
            height: 6px;
            background: var(--primary);
            border-radius: 50%;
            flex-shrink: 0;
        }

        /* 新闻列表 */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: flex;
            gap: 18px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 18px;
            transition: all 0.2s ease;
        }
        .news-item:hover {
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }
        .news-img {
            width: 120px;
            height: 80px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .news-content {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .news-title {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--dark);
            line-height: 1.5;
            margin: 0;
        }
        .news-summary {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .news-date {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 品牌介绍 */
        .brand-intro {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 20px;
            max-width: 680px;
            margin: 0 auto;
        }
        .brand-intro .brand-line {
            width: 48px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .brand-intro .brand-logo-text {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--dark);
        }
        .brand-intro p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.9;
            margin: 0;
        }

        /* 成功路径 */
        .journey-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
        }
        .journey-step {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all 0.25s ease;
        }
        .journey-step:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }
        .journey-step-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            font-size: 1rem;
        }
        .journey-step-title {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--dark);
            margin: 0 0 6px;
        }
        .journey-step-desc {
            font-size: 0.78rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 媒体合作 */
        .partner-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            align-items: center;
        }
        .partner-item {
            padding: 10px 20px;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: all 0.2s ease;
        }
        .partner-item:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* 订阅条 */
        .subscribe-bar {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: 28px 32px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-sm);
        }
        .subscribe-text {
            flex: 1;
            min-width: 220px;
        }
        .subscribe-text h3 {
            margin: 0 0 4px;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--dark);
        }
        .subscribe-text p {
            margin: 0;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex: 1;
            min-width: 260px;
            max-width: 400px;
        }
        .subscribe-form input {
            flex: 1;
            padding: 10px 16px;
            border: 1.5px solid var(--border-strong);
            border-radius: 8px;
            font-size: 0.9rem;
            color: var(--text-main);
            transition: border-color 0.2s ease;
            outline: none;
            min-width: 0;
        }
        .subscribe-form input::placeholder {
            color: var(--text-light);
        }
        .subscribe-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-ring);
        }

        /* 表单 */
        .form-input {
            flex: 1;
            padding: 10px 16px;
            border: 1.5px solid var(--border-strong);
            border-radius: 8px;
            font-size: 0.9rem;
            color: var(--text-main);
            transition: border-color 0.2s ease;
            outline: none;
            min-width: 0;
        }
        .form-input::placeholder {
            color: var(--text-light);
        }
        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-ring);
        }

        /* CTA 收口 */
        .cta-section {
            background: linear-gradient(135deg, #111827 0%, #1F2530 55%, #1A1D24 100%);
            border-radius: 20px;
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 240px;
            height: 240px;
            background: rgba(240, 83, 46, 0.12);
            border-radius: 50%;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 180px;
            height: 180px;
            background: rgba(246, 183, 60, 0.08);
            border-radius: 50%;
        }
        .cta-section>* {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 0 0 12px;
            line-height: 1.4;
            color: #fff;
        }
        .cta-section p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* 页脚 */
        .site-footer {
            background: var(--darker);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 32px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-logo .logo-dot {
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
        }
        .footer-brand p {
            font-size: 0.82rem;
            line-height: 1.7;
            margin: 0;
            color: rgba(255, 255, 255, 0.55);
            max-width: 280px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.85rem;
            font-weight: 600;
            margin: 0 0 14px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 4px;
        }
        .footer-subscribe input {
            flex: 1;
            padding: 8px 12px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 6px;
            color: #fff;
            font-size: 0.78rem;
            outline: none;
            transition: border-color 0.2s ease;
            min-width: 0;
        }
        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-subscribe input:focus {
            border-color: var(--primary);
        }
        .footer-subscribe button {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 6px;
            padding: 8px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s ease;
            white-space: nowrap;
        }
        .footer-subscribe button:hover {
            background: var(--primary-hover);
        }
        .footer-subscribe button:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }
        .footer-bottom-links {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .footer-bottom-links .sep {
            color: rgba(255, 255, 255, 0.3);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero-content {
                gap: 32px;
            }
            .nav-links {
                gap: 18px;
            }
            .nav-links li a {
                font-size: 0.82rem;
            }
        }
        @media (max-width: 860px) {
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .hero {
                min-height: auto;
                padding-top: calc(var(--nav-height) + 40px);
                padding-bottom: 48px;
            }
            .hero-content {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero-image-wrapper img {
                height: 200px;
            }
            .section {
                padding: 56px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 640px) {
            .site-header {
                top: 8px;
                left: 8px;
                right: 8px;
            }
            .site-header.scrolled {
                left: 4px;
                right: 4px;
                top: 0;
            }
            .site-nav {
                padding: 0 16px;
                height: 60px;
                border-radius: 16px;
            }
            .nav-logo {
                font-size: 1.2rem;
            }
            .hero h1 {
                font-size: 1.6rem;
                line-height: 1.35;
            }
            .hero-subtitle {
                font-size: 0.92rem;
                line-height: 1.75;
            }
            .hero-stats {
                gap: 18px;
            }
            .hero-stat-number {
                font-size: 1.1rem;
            }
            .hero-image-wrapper img {
                height: 160px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .section-desc {
                font-size: 0.85rem;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .data-item {
                padding: 14px;
            }
            .data-number {
                font-size: 1.3rem;
            }
            .news-item {
                flex-direction: column;
                padding: 14px;
            }
            .news-img {
                width: 100%;
                height: 140px;
            }
            .subscribe-bar {
                padding: 20px;
                flex-direction: column;
                text-align: center;
            }
            .subscribe-form {
                max-width: 100%;
                width: 100%;
            }
            .cta-section {
                padding: 32px 24px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
                text-align: left;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                flex-wrap: wrap;
                justify-content: center;
            }
            .btn {
                padding: 8px 18px;
                font-size: 0.85rem;
            }
            .hero-content {
                gap: 24px;
            }
            .hero-tag {
                font-size: 0.7rem;
                padding: 4px 10px;
            }
            .hero-right {
                order: 2;
            }
            .hero-left {
                gap: 16px;
            }
        }
        @media (max-width: 420px) {
            .data-strip {
                grid-template-columns: 1fr;
            }
            .hero-stats {
                flex-direction: column;
                gap: 8px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero h1 {
                font-size: 1.4rem;
            }
            .topic-strip {
                gap: 8px;
            }
            .topic-tag {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #F0532E;
            --primary-hover: #D63D16;
            --primary-active: #B9360F;
            --primary-soft: rgba(240, 83, 46, 0.05);
            --primary-ring: rgba(240, 83, 46, 0.25);
            --dark: #1F2937;
            --darker: #111827;
            --accent: #F6B73C;
            --bg-warm: #FAF7F2;
            --bg-light: #F7F8FA;
            --text-main: #1F2937;
            --text-secondary: #4B5563;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border-light: rgba(0, 0, 0, 0.06);
            --border-strong: rgba(0, 0, 0, 0.1);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.10);
            --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.08);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 导航样式 */
        .site-header {
            position: fixed;
            top: 24px;
            left: 32px;
            right: 32px;
            z-index: 60;
            transition: top 0.3s ease, left 0.3s ease, right 0.3s ease;
        }

        .site-header.scrolled {
            top: 0;
            left: 12px;
            right: 12px;
        }

        .site-header.scrolled .site-nav {
            border-radius: 14px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
            border-bottom: 1px solid var(--border-light);
        }

        .site-nav {
            background: rgba(255, 255, 255, 0.96);
            border-radius: 20px;
            box-shadow: var(--shadow-nav);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            transition: border-radius 0.3s ease, box-shadow 0.3s ease;
        }

        .nav-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .nav-logo .logo-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 2px;
            position: relative;
            white-space: nowrap;
            transition: color 0.2s ease;
        }

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

        .nav-links li a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 10px 22px;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.2s ease;
            border: 2px solid transparent;
            line-height: 1.4;
            text-align: center;
            gap: 6px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 2px 8px rgba(240, 83, 46, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(240, 83, 46, 0.35);
        }

        .btn-primary:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }

        .btn-primary:active {
            background: var(--primary-active);
            border-color: var(--primary-active);
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(240, 83, 46, 0.3);
        }

        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-secondary:hover {
            background: var(--primary-soft);
            transform: translateY(-2px);
        }

        .btn-secondary:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }

        .btn-secondary:active {
            background: rgba(240, 83, 46, 0.08);
            transform: translateY(0);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: 8px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            border-radius: 8px;
            color: var(--dark);
        }

        .nav-toggle:hover {
            color: var(--primary);
        }

        .nav-toggle:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }

        .nav-toggle svg {
            width: 24px;
            height: 24px;
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 18px;
            }
            .nav-links li a {
                font-size: 0.85rem;
            }
            .nav-cta .btn-secondary {
                display: none;
            }
        }

        @media (max-width: 820px) {
            .site-header {
                top: 12px;
                left: 12px;
                right: 12px;
            }
            .site-nav {
                padding: 0 16px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: calc(var(--nav-height) + 8px);
                left: 0;
                right: 0;
                background: #fff;
                border-radius: 16px;
                box-shadow: var(--shadow-md);
                flex-direction: column;
                gap: 0;
                padding: 12px 0;
                border: 1px solid var(--border-light);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                display: block;
                padding: 12px 20px;
                font-size: 1rem;
                border-bottom: 1px solid var(--border-light);
            }
            .nav-links li:last-child a {
                border-bottom: none;
            }
            .nav-links li a.active::after {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
        }

        /* 面包屑样式 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--primary);
            transition: color 0.2s ease;
        }

        .breadcrumb a:hover {
            color: var(--primary-hover);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .breadcrumb .sep {
            color: var(--text-light);
        }

        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* H1 区样式 */
        .page-h1-section {
            padding-top: 140px;
            padding-bottom: 48px;
            background: linear-gradient(180deg, #fff 0%, var(--bg-warm) 100%);
            border-bottom: 1px solid var(--border-light);
            position: relative;
        }

        .page-h1-section .h1-title {
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.25;
            color: var(--dark);
            margin: 0 0 12px;
            letter-spacing: -0.01em;
        }

        .page-h1-section .h1-title span {
            color: var(--primary);
        }

        .page-h1-section .h1-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 620px;
            margin: 0;
        }

        /* 板块通用样式 */
        .section-block {
            padding: 64px 0;
        }

        .section-block.bg-light {
            background: var(--bg-light);
        }

        .section-block.bg-white {
            background: #fff;
        }

        .section-block.bg-dark {
            background: var(--darker);
            color: #E5E7EB;
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.4;
            margin: 0 0 12px;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 32px;
            max-width: 680px;
        }

        .section-header {
            margin-bottom: 36px;
        }

        /* 文档卡片样式 */
        .doc-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all 0.25s ease;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .doc-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(240, 83, 46, 0.15);
        }

        .doc-card .doc-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .doc-card .doc-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .doc-card:hover .doc-img-wrap img {
            transform: scale(1.03);
        }

        .doc-card .doc-body {
            padding: 20px 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .doc-card .doc-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 10px;
            border-radius: var(--radius-xs);
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .doc-card .doc-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.4;
            margin: 0 0 8px;
        }

        .doc-card .doc-excerpt {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }

        .doc-card .doc-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
        }

        .doc-card .doc-meta .read-more {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color 0.2s ease, gap 0.2s ease;
        }

        .doc-card .doc-meta .read-more:hover {
            color: var(--primary-hover);
            gap: 8px;
        }

        .doc-card .doc-meta .read-more:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* 数据指标条样式 */
        .metrics-strip {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            background: var(--darker);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
        }

        .metric-item {
            text-align: center;
        }

        .metric-item .metric-value {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin: 0 0 6px;
        }

        .metric-item .metric-label {
            font-size: 0.9rem;
            color: #D1D5DB;
            line-height: 1.5;
            margin: 0;
        }

        /* 场景卡片样式 */
        .scene-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all 0.25s ease;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .scene-card .scene-img-wrap {
            aspect-ratio: 4/3;
            overflow: hidden;
        }

        .scene-card .scene-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .scene-card:hover .scene-img-wrap img {
            transform: scale(1.04);
        }

        .scene-card .scene-body {
            padding: 20px 22px;
            flex: 1;
        }

        .scene-card .scene-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--dark);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .scene-card .scene-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* FAQ 样式 */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.2s ease;
        }

        .faq-item:hover {
            border-color: rgba(240, 83, 46, 0.2);
        }

        .faq-item summary {
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--dark);
            list-style: none;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color 0.2s ease;
        }

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

        .faq-item summary:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 0;
            border-radius: var(--radius-md);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.2rem;
            transition: transform 0.2s ease;
            font-weight: 400;
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* 订阅 CTA 样式 */
        .cta-dark-panel {
            background: var(--darker);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-dark-panel .cta-content {
            flex: 1;
            min-width: 280px;
        }

        .cta-dark-panel .cta-content h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.35;
            margin: 0 0 8px;
        }

        .cta-dark-panel .cta-content p {
            font-size: 0.95rem;
            color: #D1D5DB;
            line-height: 1.7;
            margin: 0;
        }

        .cta-dark-panel .cta-form {
            display: flex;
            gap: 10px;
            min-width: 300px;
            flex-shrink: 0;
        }

        .cta-dark-panel .cta-form input {
            flex: 1;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid rgba(255,255,255,0.2);
            background: rgba(255,255,255,0.08);
            color: #fff;
            font-size: 0.9rem;
            transition: all 0.2s ease;
            min-width: 0;
        }

        .cta-dark-panel .cta-form input::placeholder {
            color: #9CA3AF;
        }

        .cta-dark-panel .cta-form input:focus {
            outline: none;
            border-color: var(--primary);
            background: rgba(255,255,255,0.12);
            box-shadow: 0 0 0 3px var(--primary-ring);
        }

        /* 相关分类入口样式 */
        .category-links {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .category-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 10px;
            border: 1px solid var(--border-strong);
            background: #fff;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: all 0.2s ease;
        }

        .category-links a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
            transform: translateY(-2px);
        }

        .category-links a:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }

        /* 页脚样式 */
        .site-footer {
            background: var(--darker);
            color: #D1D5DB;
            padding: 56px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo .logo-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: #9CA3AF;
            line-height: 1.7;
            margin: 0;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            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: 0.88rem;
            color: #9CA3AF;
            transition: color 0.2s ease;
        }

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

        .footer-subscribe {
            display: flex;
            gap: 8px;
        }

        .footer-subscribe input {
            flex: 1;
            padding: 10px 14px;
            border-radius: 8px;
            border: 1px solid rgba(255,255,255,0.2);
            background: rgba(255,255,255,0.06);
            color: #fff;
            font-size: 0.85rem;
            transition: all 0.2s ease;
            min-width: 0;
        }

        .footer-subscribe input::placeholder {
            color: #6B7280;
        }

        .footer-subscribe input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-ring);
        }

        .footer-subscribe button {
            padding: 10px 18px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            border: none;
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .footer-subscribe button:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
        }

        .footer-subscribe button:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-bottom span {
            font-size: 0.82rem;
            color: #6B7280;
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            font-size: 0.82rem;
            color: #9CA3AF;
            transition: color 0.2s ease;
        }

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

        .footer-bottom-links .sep {
            color: #4B5563;
            font-size: 0.8rem;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .page-h1-section .h1-title {
                font-size: 2.2rem;
            }
            .cta-dark-panel {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-dark-panel .cta-form {
                width: 100%;
                min-width: 0;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .page-h1-section {
                padding-top: 110px;
                padding-bottom: 32px;
            }
            .page-h1-section .h1-title {
                font-size: 1.8rem;
            }
            .page-h1-section .h1-desc {
                font-size: 0.95rem;
            }
            .section-block {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .metrics-strip {
                grid-template-columns: 1fr;
                gap: 20px;
                padding: 28px 20px;
            }
            .metric-item .metric-value {
                font-size: 1.8rem;
            }
            .doc-card .doc-body {
                padding: 16px 16px 20px;
            }
            .doc-card .doc-title {
                font-size: 1.05rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-dark-panel {
                padding: 32px 24px;
            }
            .cta-dark-panel .cta-content h2 {
                font-size: 1.4rem;
            }
            .cta-dark-panel .cta-form {
                flex-direction: column;
            }
            .category-links a {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #F0532E;
  --primary-hover: #D63D16;
  --primary-active: #B9360F;
  --primary-soft: rgba(240, 83, 46, 0.05);
  --primary-ring: rgba(240, 83, 46, 0.25);
  --dark: #1F2937;
  --darker: #111827;
  --accent: #F6B73C;
  --bg-warm: #FAF7F2;
  --bg-light: #F7F8FA;
  --text-main: #1F2937;
  --text-secondary: #4B5563;
  --text-muted: #6B7280;
  --text-light: #9CA3AF;
  --border-light: rgba(0, 0, 0, 0.06);
  --border-strong: rgba(0, 0, 0, 0.1);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.10);
  --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.08);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --container-max: 1200px;
  --nav-height: 68px;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
  background-color: var(--bg-warm);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}
button,
input {
  font-family: inherit;
  font-size: inherit;
}
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
@media (max-width: 640px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}
/* 导航样式 */
.site-header {
  position: fixed;
  top: 24px;
  left: 32px;
  right: 32px;
  z-index: 60;
  transition: top 0.3s ease, left 0.3s ease, right 0.3s ease;
}
.site-header.scrolled {
  top: 0;
  left: 12px;
  right: 12px;
}
.site-header.scrolled .site-nav {
  border-radius: 14px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
  border-bottom: 1px solid var(--border-light);
}
.site-nav {
  background: rgba(255, 255, 255, 0.97);
  border-radius: 20px;
  box-shadow: var(--shadow-nav);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  transition: border-radius 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}
.nav-logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.nav-logo .logo-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  background: var(--primary);
  border-radius: 50%;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links li a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 2px;
  position: relative;
  white-space: nowrap;
  transition: color 0.2s ease;
}
.nav-links li a:hover {
  color: var(--primary);
}
.nav-links li a.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-links li a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 10px 22px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid transparent;
  line-height: 1.4;
  text-align: center;
  gap: 6px;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(240, 83, 46, 0.3);
}
.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(240, 83, 46, 0.35);
}
.btn-primary:focus-visible {
  outline: 3px solid var(--primary-ring);
  outline-offset: 2px;
}
.btn-primary:active {
  background: var(--primary-active);
  border-color: var(--primary-active);
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(240, 83, 46, 0.3);
}
.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-secondary:hover {
  background: var(--primary-soft);
  color: var(--primary-hover);
  border-color: var(--primary-hover);
  transform: translateY(-2px);
}
.btn-secondary:focus-visible {
  outline: 3px solid var(--primary-ring);
  outline-offset: 2px;
}
.btn-secondary:active {
  background: rgba(240, 83, 46, 0.1);
  transform: translateY(0);
}
.btn-sm {
  padding: 7px 16px;
  font-size: 0.82rem;
  border-radius: 8px;
}
.btn-lg {
  padding: 14px 32px;
  font-size: 1rem;
  border-radius: 12px;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: background 0.2s ease;
}
.nav-toggle:hover {
  background: var(--bg-light);
}
.nav-toggle:focus-visible {
  outline: 3px solid var(--primary-ring);
}
.nav-toggle svg {
  width: 24px;
  height: 24px;
}
/* 面包屑与页面头 */
.page-head {
  padding-top: calc(var(--nav-height) + 56px);
  padding-bottom: 36px;
  background: var(--bg-warm);
  border-bottom: 1px solid var(--border-light);
}
.breadcrumb {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.breadcrumb a {
  color: var(--text-secondary);
  transition: color 0.2s ease;
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb .sep {
  color: var(--text-light);
}
.page-head h1 {
  font-size: 2.2rem;
  line-height: 1.3;
  margin: 0 0 12px;
  color: var(--dark);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.page-head .head-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 720px;
  line-height: 1.7;
}
/* 主体区块 */
.main-section {
  padding: 56px 0;
}
.main-section.alt-bg {
  background: var(--bg-light);
}
.main-section.dark-bg {
  background: var(--darker);
  color: #fff;
}
.section-title {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--dark);
  margin: 0 0 12px;
  line-height: 1.35;
  letter-spacing: -0.01em;
}
.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.75;
  margin: 0;
}
.dark-bg .section-title {
  color: #fff;
}
.dark-bg .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}
/* 卡片网格 */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.solution-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.25s ease;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.solution-card .card-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
  background: #e5e7eb;
}
.solution-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.solution-card .card-body {
  padding: 22px 22px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-badge {
  display: inline-flex;
  align-items: center;
  background: rgba(240, 83, 46, 0.08);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
  width: fit-content;
}
.solution-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin: 0 0 8px;
  line-height: 1.4;
}
.solution-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0 0 18px;
  flex: 1;
}
.card-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s ease, gap 0.2s ease;
}
.card-link:hover {
  color: var(--primary-hover);
  gap: 8px;
}
.card-link:focus-visible {
  outline: 3px solid var(--primary-ring);
  outline-offset: 3px;
  border-radius: 4px;
}
/* 数据指标条 */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.stat-item {
  text-align: center;
  padding: 32px 20px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.stat-item .stat-num {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.stat-item .stat-label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 8px;
}
/* 场景图文 */
.scene-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
.scene-row.reverse {
  direction: rtl;
}
.scene-row.reverse > * {
  direction: ltr;
}
.scene-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  aspect-ratio: 16 / 10;
}
.scene-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.scene-text h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--dark);
  margin: 0 0 12px;
  line-height: 1.35;
}
.scene-text p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0 0 16px;
}
.scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.scene-tag {
  font-size: 0.78rem;
  color: var(--text-secondary);
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  padding: 4px 12px;
  border-radius: 999px;
}
/* 订阅 CTA */
.subscribe-box {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-sm);
}
.subscribe-box .info h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--dark);
  margin: 0 0 8px;
}
.subscribe-box .info p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}
.subscribe-form {
  display: flex;
  gap: 10px;
  flex: 1;
  min-width: 280px;
}
.subscribe-form input {
  flex: 1;
  padding: 12px 18px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: var(--bg-warm);
  font-size: 0.9rem;
  color: var(--text-main);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  min-width: 0;
}
.subscribe-form input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-ring);
}
.subscribe-form input::placeholder {
  color: var(--text-light);
}
/* 分类入口 */
.entry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.entry-card {
  display: block;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 22px 20px;
  text-align: center;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}
.entry-card:hover {
  border-color: rgba(240, 83, 46, 0.3);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.entry-card .entry-name {
  font-weight: 700;
  color: var(--dark);
  font-size: 1.05rem;
  margin: 0 0 4px;
}
.entry-card .entry-arrow {
  color: var(--primary);
  font-size: 0.85rem;
}
/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  transition: border-color 0.2s ease;
}
.faq-item:hover {
  border-color: rgba(240, 83, 46, 0.2);
}
.faq-item h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin: 0 0 8px;
  line-height: 1.45;
}
.faq-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.7;
}
/* 页脚 */
.site-footer {
  background: var(--darker);
  color: rgba(255, 255, 255, 0.75);
  padding: 56px 0 24px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 36px;
}
.footer-brand {
  max-width: 320px;
}
.footer-logo {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.footer-logo .logo-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  background: var(--primary);
  border-radius: 50%;
}
.footer-brand p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
  margin: 0;
}
.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  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: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s ease;
}
.footer-col ul li a:hover {
  color: var(--primary);
}
.footer-subscribe {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}
.footer-subscribe input {
  flex: 1;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  font-size: 0.85rem;
  transition: border-color 0.2s ease;
}
.footer-subscribe input:focus {
  outline: none;
  border-color: var(--primary);
}
.footer-subscribe input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}
.footer-subscribe button {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.2s ease;
}
.footer-subscribe button:hover {
  background: var(--primary-hover);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.5);
}
.footer-bottom-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.2s ease;
}
.footer-bottom-links a:hover {
  color: var(--primary);
}
.footer-bottom-links .sep {
  color: rgba(255, 255, 255, 0.3);
  margin: 0 8px;
}
/* 响应式 */
@media (max-width: 1024px) {
  .solution-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .scene-row {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .scene-row.reverse {
    direction: ltr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  .nav-links {
    gap: 14px;
  }
  .nav-links li a {
    font-size: 0.82rem;
  }
}
@media (max-width: 768px) {
  .site-header {
    top: 12px;
    left: 12px;
    right: 12px;
  }
  .site-header.scrolled {
    top: 0;
    left: 0;
    right: 0;
  }
  .site-header.scrolled .site-nav {
    border-radius: 0;
  }
  .site-nav {
    padding: 0 16px;
    border-radius: 14px;
  }
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 12px;
    right: 12px;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    border-radius: 0 0 16px 16px;
    box-shadow: var(--shadow-md);
    padding: 12px 20px;
    display: none;
    z-index: 59;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links li {
    width: 100%;
  }
  .nav-links li a {
    display: block;
    padding: 12px 0;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border-light);
  }
  .nav-cta {
    display: none;
  }
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .page-head {
    padding-top: calc(var(--nav-height) + 32px);
    padding-bottom: 24px;
  }
  .page-head h1 {
    font-size: 1.7rem;
  }
  .solution-grid {
    grid-template-columns: 1fr;
  }
  .stats-strip {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .entry-grid {
    grid-template-columns: 1fr;
  }
  .subscribe-box {
    flex-direction: column;
    align-items: flex-start;
    padding: 28px 22px;
  }
  .subscribe-form {
    width: 100%;
    min-width: 0;
    flex-direction: column;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .main-section {
    padding: 36px 0;
  }
}
@media (max-width: 640px) {
  .site-header {
    top: 8px;
    left: 8px;
    right: 8px;
  }
  .site-nav {
    height: 60px;
    border-radius: 12px;
  }
  .nav-logo {
    font-size: 1.2rem;
  }
  .section-title {
    font-size: 1.4rem;
  }
  .stat-item .stat-num {
    font-size: 1.9rem;
  }
}

/* roulang page: category3 */
:root {
            --primary: #F0532E;
            --primary-hover: #D63D16;
            --primary-active: #B9360F;
            --primary-soft: rgba(240, 83, 46, 0.05);
            --primary-ring: rgba(240, 83, 46, 0.25);
            --dark: #1F2937;
            --darker: #111827;
            --accent: #F6B73C;
            --bg-warm: #FAF7F2;
            --bg-light: #F7F8FA;
            --text-main: #1F2937;
            --text-secondary: #4B5563;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border-light: rgba(0, 0, 0, 0.06);
            --border-strong: rgba(0, 0, 0, 0.1);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.10);
            --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.08);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        .site-header {
            position: fixed;
            top: 24px;
            left: 32px;
            right: 32px;
            z-index: 60;
            transition: top 0.3s ease, left 0.3s ease, right 0.3s ease;
        }
        .site-header.scrolled {
            top: 0;
            left: 12px;
            right: 12px;
        }
        .site-header.scrolled .site-nav {
            border-radius: 14px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
            border-bottom: 1px solid var(--border-light);
        }
        .site-nav {
            background: rgba(255, 255, 255, 0.96);
            border-radius: 20px;
            box-shadow: var(--shadow-nav);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            transition: border-radius 0.3s ease, box-shadow 0.3s ease;
        }
        .nav-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .nav-logo .logo-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li {
            position: relative;
        }
        .nav-links li a {
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 2px;
            position: relative;
            white-space: nowrap;
            transition: color 0.2s ease;
        }
        .nav-links li a:hover {
            color: var(--primary);
        }
        .nav-links li a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: var(--text-main);
            border-radius: 8px;
            transition: background 0.2s ease;
        }
        .nav-toggle:hover {
            background: var(--primary-soft);
        }
        .nav-toggle:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }
        .nav-toggle svg {
            width: 24px;
            height: 24px;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: calc(var(--nav-height) + 36px);
            left: 16px;
            right: 16px;
            background: #fff;
            border-radius: 16px;
            box-shadow: var(--shadow-md);
            padding: 16px 20px;
            z-index: 59;
            flex-direction: column;
            gap: 8px;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            padding: 12px 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all 0.2s ease;
        }
        .mobile-menu a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 600;
            background: var(--primary-soft);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 10px 22px;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.2s ease;
            border: 2px solid transparent;
            line-height: 1.4;
            text-align: center;
            gap: 6px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 2px 8px rgba(240, 83, 46, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(240, 83, 46, 0.35);
        }
        .btn-primary:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }
        .btn-primary:active {
            background: var(--primary-active);
            border-color: var(--primary-active);
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(240, 83, 46, 0.3);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-soft);
            border-color: var(--primary-hover);
            transform: translateY(-2px);
        }
        .btn-secondary:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }
        .btn-secondary:active {
            background: rgba(240, 83, 46, 0.1);
            border-color: var(--primary-active);
            transform: translateY(0);
        }
        .btn-sm {
            padding: 7px 16px;
            font-size: 0.82rem;
            border-radius: 8px;
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 1rem;
            border-radius: 12px;
        }

        .page-breadcrumb {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .page-breadcrumb a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .page-breadcrumb a:hover {
            color: var(--primary);
        }
        .page-breadcrumb .sep {
            margin: 0 6px;
            color: var(--text-light);
        }
        .page-breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }

        .compact-hero {
            padding: calc(var(--nav-height) + 72px) 0 48px;
            background: linear-gradient(180deg, #FAF7F2 0%, #F7F8FA 100%);
        }
        .compact-hero .container {
            max-width: 900px;
        }
        .compact-hero h1 {
            font-size: 2.1rem;
            line-height: 1.3;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .compact-hero h1 .highlight {
            color: var(--primary);
        }
        .compact-hero p.hero-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 620px;
            line-height: 1.7;
        }

        .section {
            padding: 72px 0;
        }
        .section-tight {
            padding: 48px 0;
        }
        .section-warm {
            background: var(--bg-warm);
        }
        .section-light {
            background: var(--bg-light);
        }
        .section-dark {
            background: var(--darker);
            color: #fff;
        }

        .section-heading {
            margin-bottom: 36px;
        }
        .section-heading h2 {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.35;
            letter-spacing: -0.01em;
        }
        .section-heading p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 8px;
            max-width: 560px;
        }
        .section-heading .accent-tag {
            display: inline-block;
            background: rgba(240, 83, 46, 0.08);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
        }

        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        @media (max-width: 1024px) {
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .case-grid {
                grid-template-columns: 1fr;
            }
        }

        .case-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all 0.25s ease;
        }
        .case-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .case-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }
        .case-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .case-card:hover .case-card-img img {
            transform: scale(1.04);
        }
        .case-card-body {
            padding: 20px 22px 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        .case-card-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.76rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 10px;
            border-radius: 20px;
            align-self: flex-start;
        }
        .case-card h3 {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.4;
            margin: 0;
        }
        .case-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
        }
        .case-card .read-more {
            margin-top: auto;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all 0.2s ease;
            align-self: flex-start;
        }
        .case-card .read-more:hover {
            color: var(--primary-hover);
            gap: 8px;
        }

        .stats-strip {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            padding: 28px 32px;
        }
        @media (max-width: 768px) {
            .stats-strip {
                grid-template-columns: 1fr;
                gap: 20px;
                padding: 24px;
            }
        }
        .stat-item {
            text-align: center;
        }
        .stat-item .stat-num {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        @media (max-width: 1024px) {
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }
        .scenario-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .scenario-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }
        .scenario-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .scenario-card:hover .scenario-card-img img {
            transform: scale(1.04);
        }
        .scenario-card-body {
            padding: 18px 20px 20px;
        }
        .scenario-card-body h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
        }
        .scenario-card-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        .cta-panel {
            background: var(--darker);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(240, 83, 46, 0.15);
        }
        .cta-panel::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(246, 183, 60, 0.08);
        }
        .cta-panel h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
            position: relative;
            z-index: 1;
        }
        .cta-panel p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 480px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 1;
        }
        .cta-panel .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .related-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .related-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            border: 1px solid var(--border-light);
            padding: 10px 20px;
            border-radius: 30px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.2s ease;
        }
        .related-links a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
        }

        .faq-list {
            max-width: 720px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all 0.2s ease;
        }
        .faq-item:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-sm);
        }
        .faq-item summary {
            padding: 18px 24px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            font-size: 0.98rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color 0.2s ease;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--primary);
        }
        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            color: var(--primary);
            transition: transform 0.2s ease;
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .site-footer {
            background: var(--darker);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .site-footer .container {
            max-width: var(--container-max);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .footer-brand .footer-logo .logo-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 4px;
        }
        .footer-subscribe input {
            flex: 1;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 8px;
            padding: 10px 14px;
            color: #fff;
            font-size: 0.85rem;
            outline: none;
            transition: all 0.2s ease;
            min-width: 0;
        }
        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-subscribe input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-ring);
        }
        .footer-subscribe button {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 8px;
            padding: 10px 16px;
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .footer-subscribe button:hover {
            background: var(--primary-hover);
        }
        .footer-subscribe button:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.45);
            transition: color 0.2s ease;
        }
        .footer-bottom-links a:hover {
            color: var(--primary);
        }
        .footer-bottom-links .sep {
            color: rgba(255, 255, 255, 0.2);
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .site-header {
                top: 12px;
                left: 12px;
                right: 12px;
            }
            .site-nav {
                padding: 0 16px;
                height: 60px;
                border-radius: 14px;
            }
            .compact-hero {
                padding: calc(60px + 40px) 0 36px;
            }
            .compact-hero h1 {
                font-size: 1.55rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-heading h2 {
                font-size: 1.35rem;
            }
            .cta-panel {
                padding: 32px 20px;
            }
            .cta-panel h2 {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 520px) {
            .case-card-body {
                padding: 16px 18px 20px;
            }
            .case-card h3 {
                font-size: 1rem;
            }
            .stats-strip {
                padding: 20px 16px;
            }
            .stat-item .stat-num {
                font-size: 1.45rem;
            }
            .related-links a {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
        }

/* roulang page: category4 */
:root {
      --primary: #F0532E;
      --primary-hover: #D63D16;
      --primary-active: #B9360F;
      --primary-soft: rgba(240, 83, 46, 0.05);
      --primary-ring: rgba(240, 83, 46, 0.25);
      --dark: #1F2937;
      --darker: #111827;
      --accent: #F6B73C;
      --bg-warm: #FAF7F2;
      --bg-light: #F7F8FA;
      --text-main: #1F2937;
      --text-secondary: #4B5563;
      --text-muted: #6B7280;
      --text-light: #9CA3AF;
      --border-light: rgba(0, 0, 0, 0.06);
      --border-strong: rgba(0, 0, 0, 0.1);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 10px;
      --radius-xs: 6px;
      --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.06);
      --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.10);
      --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.08);
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
      --container-max: 1200px;
      --nav-height: 68px;
    }

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-main);
      background-color: var(--bg-warm);
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }

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

    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.2s ease;
    }

    button,
    input {
      font-family: inherit;
      font-size: inherit;
    }

    .container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    @media (max-width: 640px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }
    }

    /* 导航样式 */
    .site-header {
      position: fixed;
      top: 24px;
      left: 32px;
      right: 32px;
      z-index: 60;
      transition: top 0.3s ease, left 0.3s ease, right 0.3s ease;
    }

    .site-header.scrolled {
      top: 0;
      left: 12px;
      right: 12px;
    }

    .site-header.scrolled .site-nav {
      border-radius: 14px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
      border-bottom: 1px solid var(--border-light);
    }

    .site-nav {
      background: rgba(255, 255, 255, 0.96);
      border-radius: 20px;
      box-shadow: var(--shadow-nav);
      height: var(--nav-height);
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 24px;
      transition: border-radius 0.3s ease, box-shadow 0.3s ease;
      gap: 16px;
    }

    .nav-logo {
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--dark);
      letter-spacing: 0.02em;
      display: flex;
      align-items: center;
      gap: 8px;
      white-space: nowrap;
    }

    .nav-logo .logo-dot {
      display: inline-block;
      width: 10px;
      height: 10px;
      background: var(--primary);
      border-radius: 50%;
      flex-shrink: 0;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 20px;
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .nav-links li a {
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-secondary);
      padding: 8px 2px;
      position: relative;
      white-space: nowrap;
      transition: color 0.2s ease;
    }

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

    .nav-links li a.active {
      color: var(--primary);
      font-weight: 600;
    }

    .nav-links li a.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    .nav-cta {
      display: flex;
      align-items: center;
      gap: 10px;
      white-space: nowrap;
    }

    .nav-toggle {
      display: none;
      background: transparent;
      border: 0;
      cursor: pointer;
      width: 44px;
      height: 44px;
      border-radius: var(--radius-md);
      justify-content: center;
      align-items: center;
    }

    .nav-toggle svg {
      width: 28px;
      height: 28px;
      color: var(--dark);
    }

    @media (max-width: 1024px) {
      .nav-links {
        display: none;
        position: absolute;
        top: calc(var(--nav-height) + 8px);
        left: 0;
        right: 0;
        background: #fff;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-md);
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        padding: 16px;
        border: 1px solid var(--border-light);
      }

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

      .nav-links li {
        width: 100%;
      }

      .nav-links li a {
        display: block;
        padding: 10px 12px;
        border-radius: var(--radius-sm);
      }

      .nav-links li a:hover {
        background: var(--primary-soft);
      }

      .nav-toggle {
        display: flex;
      }

      .nav-cta .btn-secondary {
        display: none;
      }
    }

    @media (max-width: 640px) {
      .site-header {
        left: 8px;
        right: 8px;
        top: 16px;
      }

      .site-header.scrolled {
        top: 0;
        left: 4px;
        right: 4px;
      }

      .site-nav {
        padding: 0 12px;
        border-radius: 16px;
      }

      .nav-logo {
        font-size: 1.2rem;
      }

      .nav-cta .btn {
        padding: 8px 14px;
        font-size: 0.8rem;
      }
    }

    /* 按钮组件 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      border-radius: var(--radius-sm);
      padding: 10px 22px;
      font-size: 0.9rem;
      cursor: pointer;
      transition: all 0.2s ease;
      border: 2px solid transparent;
      line-height: 1.4;
      text-align: center;
      gap: 6px;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
      box-shadow: 0 2px 8px rgba(240, 83, 46, 0.3);
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      border-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(240, 83, 46, 0.35);
    }

    .btn-primary:focus-visible {
      outline: 3px solid var(--primary-ring);
      outline-offset: 2px;
    }

    .btn-primary:active {
      background: var(--primary-active);
      border-color: var(--primary-active);
      transform: translateY(0);
      box-shadow: 0 2px 6px rgba(240, 83, 46, 0.3);
    }

    .btn-secondary {
      background: transparent;
      color: var(--primary);
      border-color: var(--primary);
    }

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

    .btn-secondary:focus-visible {
      outline: 3px solid var(--primary-ring);
      outline-offset: 2px;
    }

    .btn-secondary:active {
      background: var(--primary-soft);
      border-color: var(--primary);
      transform: translateY(0);
    }

    .btn-sm {
      padding: 8px 16px;
      font-size: 0.8rem;
    }

    .btn-lg {
      padding: 14px 28px;
      font-size: 1rem;
    }

    /* 标签样式 */
    .tag {
      display: inline-flex;
      align-items: center;
      padding: 6px 14px;
      background: var(--primary-soft);
      color: var(--primary);
      border-radius: 20px;
      font-size: 0.78rem;
      font-weight: 600;
      transition: all 0.2s ease;
      border: 1px solid rgba(240, 83, 46, 0.15);
    }

    .tag:hover {
      background: rgba(240, 83, 46, 0.1);
      border-color: rgba(240, 83, 46, 0.3);
      color: var(--primary-hover);
    }

    .tag-accent {
      background: rgba(246, 183, 60, 0.15);
      color: #B7820D;
      border-color: rgba(246, 183, 60, 0.3);
    }

    .tag-accent:hover {
      background: rgba(246, 183, 60, 0.22);
    }

    /* 分类H1区 */
    .page-hero {
      padding: calc(var(--nav-height) + 140px) 0 60px;
      background: var(--bg-warm);
      position: relative;
      overflow: hidden;
    }

    .page-hero::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: var(--border-light);
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 16px;
    }

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

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

    .breadcrumb .sep {
      color: var(--text-light);
    }

    .page-hero h1 {
      font-size: 2.6rem;
      font-weight: 700;
      color: var(--dark);
      margin: 0 0 10px;
      line-height: 1.25;
      letter-spacing: -0.01em;
    }

    .page-hero .lead {
      font-size: 1.1rem;
      color: var(--text-secondary);
      max-width: 700px;
      margin: 0;
    }

    @media (max-width: 640px) {
      .page-hero {
        padding-top: calc(var(--nav-height) + 110px);
        padding-bottom: 40px;
      }

      .page-hero h1 {
        font-size: 2rem;
      }

      .page-hero .lead {
        font-size: 1rem;
      }
    }

    /* 板块通用 */
    .section {
      padding: 80px 0;
    }

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

    .section-title {
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--dark);
      margin: 0 0 16px;
      line-height: 1.35;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-secondary);
      max-width: 640px;
      margin: 0 0 40px;
    }

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

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    @media (max-width: 1024px) {
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 640px) {
      .grid-3,
      .grid-2 {
        grid-template-columns: 1fr;
      }

      .section {
        padding: 56px 0;
      }

      .section-title {
        font-size: 1.5rem;
      }
    }

    /* 新闻卡片 */
    .news-card {
      background: #fff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      overflow: hidden;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      display: flex;
      flex-direction: column;
    }

    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(240, 83, 46, 0.2);
    }

    .news-card .news-img {
      aspect-ratio: 16/9;
      overflow: hidden;
      background: var(--bg-light);
    }

    .news-card .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

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

    .news-card .news-body {
      padding: 20px 20px 24px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .news-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    .news-meta .date {
      font-weight: 600;
      color: var(--text-secondary);
    }

    .news-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--dark);
      margin: 0 0 10px;
      line-height: 1.4;
    }

    .news-card p {
      font-size: 0.92rem;
      color: var(--text-secondary);
      line-height: 1.7;
      margin: 0 0 16px;
      flex: 1;
    }

    .news-card .btn {
      align-self: flex-start;
      margin-top: auto;
    }

    /* 数据指标卡片 */
    .stat-card {
      background: #fff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      padding: 28px 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: box-shadow 0.2s ease;
    }

    .stat-card:hover {
      box-shadow: var(--shadow-md);
    }

    .stat-card .stat-value {
      font-size: 2.4rem;
      font-weight: 700;
      color: var(--primary);
      line-height: 1.2;
      margin-bottom: 8px;
    }

    .stat-card .stat-label {
      font-size: 0.95rem;
      color: var(--text-secondary);
      margin: 0;
    }

    /* 场景卡片 */
    .scene-card {
      background: #fff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      overflow: hidden;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      display: flex;
      flex-direction: column;
    }

    .scene-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .scene-card .scene-img {
      aspect-ratio: 4/3;
      overflow: hidden;
      background: var(--bg-light);
    }

    .scene-card .scene-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

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

    .scene-card .scene-body {
      padding: 20px 22px 24px;
    }

    .scene-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--dark);
      margin: 0 0 8px;
    }

    .scene-card p {
      font-size: 0.92rem;
      color: var(--text-secondary);
      margin: 0 0 16px;
      line-height: 1.7;
    }

    /* 订阅CTA */
    .cta-dark {
      background: var(--darker);
      color: #fff;
      border-radius: var(--radius-lg);
      padding: 64px 48px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-dark::before {
      content: '';
      position: absolute;
      top: -80px;
      right: -40px;
      width: 240px;
      height: 240px;
      background: rgba(240, 83, 46, 0.15);
      border-radius: 50%;
      pointer-events: none;
    }

    .cta-dark h2 {
      font-size: 2rem;
      font-weight: 700;
      color: #fff;
      margin: 0 0 16px;
      position: relative;
      z-index: 1;
    }

    .cta-dark p {
      font-size: 1rem;
      color: rgba(255, 255, 255, 0.8);
      max-width: 560px;
      margin: 0 auto 32px;
      position: relative;
      z-index: 1;
    }

    .cta-form {
      display: flex;
      gap: 12px;
      width: 100%;
      max-width: 560px;
      position: relative;
      z-index: 1;
    }

    .cta-form input {
      flex: 1;
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
      font-size: 0.95rem;
      transition: border-color 0.2s ease, background 0.2s ease;
      outline: none;
    }

    .cta-form input::placeholder {
      color: rgba(255, 255, 255, 0.55);
    }

    .cta-form input:focus {
      border-color: var(--primary);
      background: rgba(255, 255, 255, 0.12);
    }

    .cta-form button {
      flex-shrink: 0;
      padding: 14px 28px;
      background: var(--primary);
      color: #fff;
      border: 0;
      border-radius: var(--radius-sm);
      font-weight: 600;
      cursor: pointer;
      transition: background 0.2s ease, transform 0.2s ease;
    }

    .cta-form button:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
    }

    .cta-form button:focus-visible {
      outline: 3px solid var(--primary-ring);
      outline-offset: 2px;
    }

    .cta-form button:active {
      background: var(--primary-active);
      transform: translateY(0);
    }

    @media (max-width: 640px) {
      .cta-dark {
        padding: 40px 24px;
      }

      .cta-form {
        flex-direction: column;
        gap: 10px;
      }

      .cta-form input,
      .cta-form button {
        width: 100%;
      }
    }

    /* 标签云 */
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    /* 页脚 */
    .site-footer {
      background: var(--dark);
      color: rgba(255, 255, 255, 0.8);
      padding: 64px 0 32px;
      margin-top: 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-brand .footer-logo {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 1.4rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }

    .footer-brand .logo-dot {
      display: inline-block;
      width: 10px;
      height: 10px;
      background: var(--primary);
      border-radius: 50%;
    }

    .footer-brand p {
      font-size: 0.9rem;
      color: rgba(255, 255, 255, 0.7);
      line-height: 1.8;
      max-width: 300px;
    }

    .footer-col h4 {
      font-size: 1rem;
      font-weight: 600;
      color: #fff;
      margin: 0 0 16px;
    }

    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-col ul a {
      font-size: 0.9rem;
      color: rgba(255, 255, 255, 0.7);
      transition: color 0.2s ease;
    }

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

    .footer-subscribe {
      display: flex;
      gap: 8px;
      margin-top: 4px;
    }

    .footer-subscribe input {
      flex: 1;
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.06);
      color: #fff;
      font-size: 0.85rem;
      outline: none;
      transition: border-color 0.2s ease;
    }

    .footer-subscribe input:focus {
      border-color: var(--primary);
    }

    .footer-subscribe input::placeholder {
      color: rgba(255, 255, 255, 0.5);
    }

    .footer-subscribe button {
      padding: 10px 18px;
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.3);
      color: #fff;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .footer-subscribe button:hover {
      background: var(--primary);
      border-color: var(--primary);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.85rem;
    }

    .footer-bottom a {
      color: rgba(255, 255, 255, 0.7);
      transition: color 0.2s ease;
    }

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

    .footer-bottom-links {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .footer-bottom .sep {
      color: rgba(255, 255, 255, 0.3);
    }

    @media (max-width: 1024px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }

    @media (max-width: 640px) {
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

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

/* roulang page: category6 */
:root {
      --primary: #F0532E;
      --primary-hover: #D63D16;
      --primary-active: #B9360F;
      --primary-soft: rgba(240, 83, 46, 0.05);
      --primary-ring: rgba(240, 83, 46, 0.25);
      --dark: #1F2937;
      --darker: #111827;
      --accent: #F6B73C;
      --bg-warm: #FAF7F2;
      --bg-light: #F7F8FA;
      --text-main: #1F2937;
      --text-secondary: #4B5563;
      --text-muted: #6B7280;
      --text-light: #9CA3AF;
      --border-light: rgba(0, 0, 0, 0.06);
      --border-strong: rgba(0, 0, 0, 0.1);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 10px;
      --radius-xs: 6px;
      --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.06);
      --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.10);
      --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.08);
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
      --container-max: 1200px;
      --nav-height: 68px;
    }
    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
    body { font-family: var(--font-sans); font-size: 16px; line-height: 1.8; color: var(--text-main); background-color: var(--bg-warm); margin: 0; padding: 0; overflow-x: hidden; }
    img { max-width: 100%; height: auto; display: block; }
    a { text-decoration: none; color: inherit; transition: color 0.2s ease; }
    button, input, textarea { font-family: inherit; font-size: inherit; }
    .container { max-width: var(--container-max); margin: 0 auto; padding-left: 24px; padding-right: 24px; }
    @media (max-width: 640px) { .container { padding-left: 16px; padding-right: 16px; } }

    /* 导航 */
    .site-header { position: fixed; top: 24px; left: 32px; right: 32px; z-index: 60; transition: top 0.3s ease, left 0.3s ease, right 0.3s ease; }
    .site-header.scrolled { top: 0; left: 12px; right: 12px; }
    .site-header.scrolled .site-nav { border-radius: 14px; box-shadow: 0 4px 20px rgba(0,0,0,0.12); border-bottom: 1px solid var(--border-light); }
    .site-nav { background: rgba(255,255,255,0.96); border-radius: 20px; box-shadow: var(--shadow-nav); height: var(--nav-height); display: flex; align-items: center; justify-content: space-between; padding: 0 24px; transition: border-radius 0.3s ease, box-shadow 0.3s ease; }
    .nav-logo { font-size: 1.4rem; font-weight: 700; color: var(--dark); letter-spacing: 0.02em; display: flex; align-items: center; gap: 8px; white-space: nowrap; }
    .nav-logo .logo-dot { display: inline-block; width: 10px; height: 10px; background: var(--primary); border-radius: 50%; flex-shrink: 0; }
    .nav-links { display: flex; align-items: center; gap: 28px; list-style: none; margin: 0; padding: 0; }
    .nav-links li a { font-size: 0.92rem; font-weight: 500; color: var(--text-secondary); padding: 8px 2px; position: relative; white-space: nowrap; transition: color 0.2s ease; }
    .nav-links li a:hover { color: var(--primary); }
    .nav-links li a.active { color: var(--primary); font-weight: 600; }
    .nav-links li a.active::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px; background: var(--primary); border-radius: 2px; }
    .nav-cta { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
    .btn { display: inline-flex; align-items: center; justify-content: center; font-weight: 600; border-radius: var(--radius-sm); padding: 10px 22px; font-size: 0.9rem; cursor: pointer; transition: all 0.2s ease; border: 2px solid transparent; line-height: 1.4; text-align: center; gap: 6px; }
    .btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: 0 2px 8px rgba(240,83,46,0.3); }
    .btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 6px 16px rgba(240,83,46,0.35); }
    .btn-primary:focus-visible { outline: 3px solid var(--primary-ring); outline-offset: 2px; }
    .btn-primary:active { background: var(--primary-active); border-color: var(--primary-active); transform: translateY(0); box-shadow: 0 2px 6px rgba(240,83,46,0.3); }
    .btn-secondary { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
    .btn-secondary:hover { background: var(--primary-soft); transform: translateY(-2px); }
    .btn-secondary:focus-visible { outline: 3px solid var(--primary-ring); outline-offset: 2px; }
    .btn-secondary:active { background: rgba(240,83,46,0.1); transform: translateY(0); }
    .btn-sm { padding: 8px 16px; font-size: 0.82rem; border-radius: 8px; }
    .nav-toggle { display: none; background: none; border: none; cursor: pointer; color: var(--dark); padding: 6px; border-radius: 8px; }
    .nav-toggle:hover { background: var(--bg-light); }
    .nav-toggle svg { width: 24px; height: 24px; }
    @media (max-width: 1024px) {
      .nav-links { gap: 16px; }
      .nav-links li a { font-size: 0.82rem; }
      .nav-cta { gap: 6px; }
    }
    @media (max-width: 768px) {
      .site-header { left: 16px; right: 16px; }
      .nav-links, .nav-cta { display: none; }
      .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
      .site-header.mobile-open .site-nav { flex-wrap: wrap; height: auto; padding: 16px; align-items: flex-start; }
      .site-header.mobile-open .nav-links { display: flex; flex-direction: column; width: 100%; gap: 0; margin-top: 12px; }
      .site-header.mobile-open .nav-links li a { display: block; padding: 10px 4px; border-bottom: 1px solid var(--border-light); }
      .site-header.mobile-open .nav-cta { display: flex; width: 100%; margin-top: 12px; gap: 10px; }
      .site-header.mobile-open .nav-toggle { position: absolute; top: 16px; right: 16px; }
    }

    /* 分类页 H1 区 */
    .page-hero { padding-top: 140px; padding-bottom: 40px; background: var(--bg-warm); }
    .breadcrumb { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 12px; }
    .breadcrumb a { color: var(--text-muted); }
    .breadcrumb a:hover { color: var(--primary); }
    .breadcrumb .sep { margin: 0 8px; color: #D1D5DB; }
    .page-hero h1 { font-size: 2.2rem; font-weight: 700; color: var(--dark); line-height: 1.35; margin: 0 0 8px; }
    .page-hero .hero-desc { font-size: 1rem; color: var(--text-secondary); max-width: 600px; }

    /* 合作卡片 */
    .cooperation-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .coop-card { background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--border-light); box-shadow: var(--shadow-sm); overflow: hidden; transition: all 0.25s ease; display: flex; flex-direction: column; }
    .coop-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--border-strong); }
    .coop-card .card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; background: var(--bg-light); }
    .coop-card .card-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
    .coop-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--dark); margin: 0 0 8px; }
    .coop-card p { font-size: 0.92rem; color: var(--text-secondary); margin: 0 0 16px; line-height: 1.7; }
    .coop-card .btn { margin-top: auto; align-self: flex-start; }
    .tag-badge { display: inline-block; background: var(--primary-soft); color: var(--primary); font-size: 0.75rem; font-weight: 600; padding: 2px 10px; border-radius: var(--radius-xs); margin-bottom: 10px; }

    /* 数据指标条 */
    .stats-strip { background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--border-light); padding: 24px; display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between; }
    .stat-item { text-align: center; flex: 1 1 150px; }
    .stat-item .stat-number { font-size: 1.8rem; font-weight: 700; color: var(--primary); line-height: 1.3; }
    .stat-item .stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }

    /* 合作流程 */
    .flow-steps { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 16px; }
    .flow-step { flex: 1 1 180px; background: #fff; border-radius: var(--radius-md); border: 1px solid var(--border-light); padding: 20px; }
    .flow-step .step-num { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; background: var(--primary); color: #fff; border-radius: 50%; font-weight: 700; font-size: 0.9rem; margin-bottom: 12px; }
    .flow-step h4 { font-size: 1rem; font-weight: 700; color: var(--dark); margin: 0 0 6px; }
    .flow-step p { font-size: 0.88rem; color: var(--text-secondary); margin: 0; line-height: 1.6; }

    /* 相关场景 */
    .scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .scene-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border-light); }
    .scene-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
    .scene-card .scene-overlay { position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: linear-gradient(180deg, transparent 30%, rgba(0,0,0,0.7)); display: flex; align-items: flex-end; padding: 20px; }
    .scene-card .scene-overlay h4 { color: #fff; font-size: 1rem; font-weight: 700; margin: 0; text-shadow: 0 2px 6px rgba(0,0,0,0.4); }

    /* 表单 */
    .contact-form-wrap { background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--border-light); box-shadow: var(--shadow-sm); padding: 28px; }
    .contact-form { display: flex; flex-wrap: wrap; gap: 14px; }
    .contact-form .form-input { flex: 1 1 220px; padding: 12px 16px; border-radius: 8px; border: 1px solid #D1D5DB; background: #fff; font-size: 0.95rem; }
    .contact-form .form-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-ring); }
    .contact-form textarea.form-input { flex: 1 1 100%; min-height: 100px; resize: vertical; }
    .contact-form .btn-primary { flex: 0 0 auto; }

    /* FAQ */
    .faq-list { display: flex; flex-direction: column; gap: 12px; }
    .faq-item { background: #fff; border-radius: var(--radius-md); border: 1px solid var(--border-light); padding: 18px 20px; }
    .faq-item h3 { font-size: 1rem; font-weight: 700; color: var(--dark); margin: 0 0 8px; }
    .faq-item p { font-size: 0.92rem; color: var(--text-secondary); margin: 0; line-height: 1.7; }

    /* 页脚 */
    .site-footer { background: var(--darker); color: #E5E7EB; margin-top: 80px; }
    .site-footer .container { padding-top: 48px; padding-bottom: 24px; }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 32px; }
    .footer-logo { font-size: 1.4rem; font-weight: 700; color: #fff; display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
    .footer-logo .logo-dot { display: inline-block; width: 10px; height: 10px; background: var(--primary); border-radius: 50%; }
    .footer-brand p { font-size: 0.9rem; color: #9CA3AF; line-height: 1.7; margin: 0 0 16px; }
    .footer-col h4 { font-size: 0.95rem; font-weight: 700; color: #fff; margin: 0 0 12px; }
    .footer-col ul { list-style: none; margin: 0; padding: 0; }
    .footer-col ul li { margin-bottom: 8px; }
    .footer-col ul li a { font-size: 0.88rem; color: #9CA3AF; transition: color 0.2s; }
    .footer-col ul li a:hover { color: var(--primary); }
    .footer-subscribe { display: flex; gap: 8px; }
    .footer-subscribe input { flex: 1; padding: 10px 14px; border-radius: 8px; border: 1px solid #374151; background: #111827; color: #fff; font-size: 0.9rem; }
    .footer-subscribe input::placeholder { color: #6B7280; }
    .footer-subscribe input:focus { outline: none; border-color: var(--primary); }
    .footer-subscribe button { padding: 10px 16px; background: var(--primary); color: #fff; border: none; border-radius: 8px; font-weight: 600; cursor: pointer; transition: background 0.2s; }
    .footer-subscribe button:hover { background: var(--primary-hover); }
    .footer-bottom { margin-top: 32px; padding-top: 20px; border-top: 1px solid #374151; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; font-size: 0.82rem; color: #6B7280; }
    .footer-bottom a { color: #6B7280; }
    .footer-bottom a:hover { color: var(--primary); }
    .footer-bottom-links { display: flex; align-items: center; gap: 8px; }
    .footer-bottom-links .sep { color: #4B5563; }

    /* 响应式 */
    @media (max-width: 1024px) {
      .cooperation-grid, .scene-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .page-hero { padding-top: 110px; padding-bottom: 28px; }
      .page-hero h1 { font-size: 1.7rem; }
      .cooperation-grid, .scene-grid { grid-template-columns: 1fr; }
      .flow-steps { flex-direction: column; }
      .stat-item { flex-basis: 100%; }
      .footer-grid { grid-template-columns: 1fr; gap: 24px; }
      .contact-form .form-input { flex: 1 1 100%; }
      .footer-subscribe { flex-direction: column; }
    }
    @media (max-width: 520px) {
      .page-hero h1 { font-size: 1.5rem; }
      .btn { padding: 8px 16px; font-size: 0.82rem; }
    }

/* roulang page: category5 */
:root {
            --primary: #F0532E;
            --primary-hover: #D63D16;
            --primary-active: #B9360F;
            --primary-soft: rgba(240, 83, 46, 0.05);
            --primary-ring: rgba(240, 83, 46, 0.25);
            --dark: #1F2937;
            --darker: #111827;
            --accent: #F6B73C;
            --bg-warm: #FAF7F2;
            --bg-light: #F7F8FA;
            --text-main: #1F2937;
            --text-secondary: #4B5563;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border-light: rgba(0, 0, 0, 0.06);
            --border-strong: rgba(0, 0, 0, 0.1);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.10);
            --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.08);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 导航样式 */
        .site-header {
            position: fixed;
            top: 24px;
            left: 32px;
            right: 32px;
            z-index: 60;
            transition: top 0.3s ease, left 0.3s ease, right 0.3s ease;
        }

        .site-header.scrolled {
            top: 0;
            left: 12px;
            right: 12px;
        }

        .site-header.scrolled .site-nav {
            border-radius: 14px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
            border-bottom: 1px solid var(--border-light);
        }

        .site-nav {
            background: rgba(255, 255, 255, 0.96);
            border-radius: 20px;
            box-shadow: var(--shadow-nav);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            transition: border-radius 0.3s ease, box-shadow 0.3s ease;
        }

        .nav-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .nav-logo .logo-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 2px;
            position: relative;
            white-space: nowrap;
            transition: color 0.2s ease;
        }

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

        .nav-links li a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 10px 22px;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.2s ease;
            border: 2px solid transparent;
            line-height: 1.4;
            text-align: center;
            gap: 6px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 2px 8px rgba(240, 83, 46, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(240, 83, 46, 0.35);
        }

        .btn-primary:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }

        .btn-primary:active {
            background: var(--primary-active);
            border-color: var(--primary-active);
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(240, 83, 46, 0.3);
        }

        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-secondary:hover {
            background: var(--primary-soft);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(240, 83, 46, 0.15);
        }

        .btn-secondary:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }

        .btn-secondary:active {
            background: rgba(240, 83, 46, 0.1);
            transform: translateY(0);
        }

        .btn-sm {
            padding: 7px 16px;
            font-size: 0.82rem;
            border-radius: 8px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: var(--dark);
            border-radius: 8px;
            transition: background 0.2s ease;
        }

        .nav-toggle:hover {
            background: var(--bg-light);
        }

        .nav-toggle svg {
            width: 24px;
            height: 24px;
        }

        .nav-toggle:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }

        /* 面包屑 */
        .breadcrumb {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

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

        .breadcrumb .sep {
            color: var(--text-light);
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* H1区 */
        .page-hero {
            padding-top: calc(var(--nav-height) + 48px);
            padding-bottom: 40px;
            background: var(--bg-warm);
        }

        .page-hero-inner {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }

        .page-hero h1 {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.25;
            color: var(--dark);
            margin: 16px 0 12px;
        }

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

        .page-hero .hero-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0;
        }

        /* Section 通用 */
        .section {
            padding: 72px 0;
        }

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

        .section-dark {
            background: var(--darker);
            color: #fff;
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--dark);
            margin-bottom: 16px;
        }

        .section-title .highlight {
            color: var(--primary);
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 680px;
            margin-bottom: 40px;
        }

        /* 品牌介绍 */
        .brand-intro {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
            padding: 60px 0;
        }

        .brand-intro .divider {
            width: 48px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            margin: 0 auto 28px;
        }

        .brand-intro p {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-secondary);
            text-align: left;
            margin-bottom: 20px;
        }

        .brand-intro .brand-img-wrap {
            margin: 36px auto 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        /* 时间线 */
        .timeline {
            position: relative;
            max-width: 720px;
            margin: 0 auto;
            padding-left: 32px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 4px;
            bottom: 4px;
            width: 3px;
            background: var(--border-strong);
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding: 0 0 36px 24px;
        }

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

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 12px;
            height: 12px;
            background: var(--primary);
            border-radius: 50%;
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px var(--primary-ring);
        }

        .timeline-item .timeline-year {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .timeline-item h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--dark);
            margin: 0 0 6px;
        }

        .timeline-item p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* 数据卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
        }

        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 理念卡片 */
        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .value-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
        }

        .value-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--primary-ring);
        }

        .value-card .value-icon {
            width: 44px;
            height: 44px;
            background: var(--primary-soft);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }

        .value-card .value-icon svg {
            width: 22px;
            height: 22px;
            color: var(--primary);
        }

        .value-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--dark);
            margin: 0 0 8px;
        }

        .value-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 服务承诺 */
        .promise-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .promise-block .promise-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .promise-block .promise-text h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 16px;
        }

        .promise-block .promise-text p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

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

        .promise-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 0.95rem;
            color: var(--text-secondary);
        }

        .promise-list li::before {
            content: '✓';
            color: var(--primary);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 1px;
        }

        /* CTA */
        .cta-section {
            background: var(--darker);
            color: #fff;
            border-radius: var(--radius-lg);
            padding: 56px 40px;
            text-align: center;
            margin: 0 16px 72px;
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cta-section h2 .highlight {
            color: var(--primary);
        }

        .cta-section p {
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 1rem;
        }

        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-section .btn-primary {
            box-shadow: 0 4px 16px rgba(240, 83, 46, 0.35);
        }

        .cta-section .btn-secondary {
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
        }

        .cta-section .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.6);
        }

        /* 订阅表单 */
        .subscribe-section {
            padding: 40px 0 72px;
        }

        .subscribe-box {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .subscribe-box h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--dark);
            margin: 0;
        }

        .subscribe-box p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 4px 0 0;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            padding: 12px 18px;
            border: 2px solid var(--border-strong);
            border-radius: 8px;
            font-size: 0.95rem;
            min-width: 260px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            background: var(--bg-light);
            color: var(--text-main);
        }

        .subscribe-form input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-ring);
            background: #fff;
        }

        .subscribe-form input::placeholder {
            color: var(--text-light);
        }

        /* 页脚 */
        .site-footer {
            background: var(--darker);
            color: var(--text-light);
            padding: 60px 0 32px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }

        .footer-brand .footer-logo .logo-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: var(--text-light);
            margin: 0;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 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: 0.88rem;
            color: var(--text-light);
            transition: color 0.2s ease;
        }

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

        .footer-subscribe {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer-subscribe input {
            flex: 1;
            min-width: 140px;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 8px;
            color: #fff;
            font-size: 0.85rem;
            transition: border-color 0.2s ease;
        }

        .footer-subscribe input::placeholder {
            color: var(--text-muted);
        }

        .footer-subscribe input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-ring);
        }

        .footer-subscribe button {
            padding: 10px 18px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .footer-subscribe button:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
        }

        .footer-subscribe button:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }

        .footer-bottom {
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-bottom-links a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

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

        .footer-bottom-links .sep {
            color: rgba(255, 255, 255, 0.2);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

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

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

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

            .section {
                padding: 56px 0;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                top: 12px;
                left: 12px;
                right: 12px;
            }

            .site-nav {
                padding: 0 16px;
                border-radius: 16px;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: calc(var(--nav-height) + 8px);
                left: 0;
                right: 0;
                background: #fff;
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-md);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border: 1px solid var(--border-light);
            }

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

            .nav-links li a {
                display: block;
                padding: 12px 8px;
                font-size: 0.95rem;
                border-radius: 8px;
            }

            .nav-links li a:hover {
                background: var(--bg-light);
            }

            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .page-hero-inner {
                padding: 24px 20px;
            }

            .page-hero h1 {
                font-size: 1.6rem;
            }

            .section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 1.45rem;
            }

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

            .stat-card {
                padding: 20px 14px;
            }

            .stat-number {
                font-size: 1.7rem;
            }

            .value-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .value-card {
                padding: 24px 20px;
            }

            .timeline {
                padding-left: 24px;
            }

            .timeline-item {
                padding-left: 16px;
            }

            .timeline-item::before {
                left: -22px;
                width: 10px;
                height: 10px;
            }

            .cta-section {
                padding: 40px 24px;
                margin: 0 8px 48px;
            }

            .cta-section h2 {
                font-size: 1.4rem;
            }

            .subscribe-box {
                padding: 28px 20px;
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }

            .subscribe-form input {
                min-width: 100%;
            }

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

            .brand-intro {
                padding: 40px 0;
            }

            .brand-intro p {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .stat-card {
                padding: 16px 10px;
            }

            .stat-number {
                font-size: 1.4rem;
            }

            .stat-label {
                font-size: 0.78rem;
            }

            .cta-buttons {
                flex-direction: column;
                gap: 10px;
            }

            .cta-buttons .btn {
                width: 100%;
            }

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

            .footer-bottom-links {
                flex-wrap: wrap;
                gap: 8px;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #F0532E;
            --primary-hover: #D63D16;
            --primary-active: #B9360F;
            --primary-soft: rgba(240, 83, 46, 0.05);
            --primary-ring: rgba(240, 83, 46, 0.25);
            --dark: #1F2937;
            --darker: #111827;
            --accent: #F6B73C;
            --bg-warm: #FAF7F2;
            --bg-light: #F7F8FA;
            --text-main: #1F2937;
            --text-secondary: #4B5563;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border-light: rgba(0, 0, 0, 0.06);
            --border-strong: rgba(0, 0, 0, 0.1);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.10);
            --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.08);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
            --container-max: 1200px;
            --nav-height: 68px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 导航样式 */
        .site-header {
            position: fixed;
            top: 24px;
            left: 32px;
            right: 32px;
            z-index: 60;
            transition: top 0.3s ease, left 0.3s ease, right 0.3s ease;
        }

        .site-header.scrolled {
            top: 0;
            left: 12px;
            right: 12px;
        }

        .site-header.scrolled .site-nav {
            border-radius: 14px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
            border-bottom: 1px solid var(--border-light);
        }

        .site-nav {
            background: rgba(255, 255, 255, 0.96);
            border-radius: 20px;
            box-shadow: var(--shadow-nav);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            transition: border-radius 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        .nav-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo .logo-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 20px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-shrink: 0;
        }

        .nav-links li a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 4px;
            position: relative;
            white-space: nowrap;
            transition: color 0.2s ease;
            letter-spacing: 0.01em;
        }

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

        .nav-links li a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 10px 20px;
            font-size: 0.88rem;
            cursor: pointer;
            transition: all 0.25s ease;
            border: 2px solid transparent;
            line-height: 1.4;
            text-align: center;
            gap: 6px;
            letter-spacing: 0.01em;
            user-select: none;
            -webkit-tap-highlight-color: transparent;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 2px 8px rgba(240, 83, 46, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(240, 83, 46, 0.35);
        }

        .btn-primary:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }

        .btn-primary:active {
            background: var(--primary-active);
            border-color: var(--primary-active);
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(240, 83, 46, 0.3);
        }

        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
            box-shadow: none;
        }

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

        .btn-secondary:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }

        .btn-secondary:active {
            background: rgba(240, 83, 46, 0.1);
            border-color: var(--primary-active);
            color: var(--primary-active);
            transform: translateY(0);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.82rem;
            border-radius: 8px;
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 0.98rem;
            border-radius: 12px;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: background 0.2s ease;
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: var(--primary-soft);
        }

        .nav-toggle:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
        }

        .nav-toggle svg {
            width: 24px;
            height: 24px;
            color: var(--dark);
        }

        /* 面包屑与H1区 */
        .compact-hero {
            padding-top: calc(var(--nav-height) + 60px);
            padding-bottom: 40px;
            background: linear-gradient(180deg, #FBFAF8 0%, var(--bg-warm) 100%);
            position: relative;
            overflow: hidden;
        }

        .compact-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(240, 83, 46, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .compact-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(246, 183, 60, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

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

        .breadcrumb .sep {
            color: var(--text-light);
            font-size: 0.7rem;
            user-select: none;
        }

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

        .compact-hero h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.3;
            margin: 0 0 8px 0;
            letter-spacing: -0.01em;
            position: relative;
            z-index: 1;
        }

        .compact-hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }

        .compact-hero .hero-sub {
            font-size: 0.96rem;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.7;
            position: relative;
            z-index: 1;
            margin: 0;
        }

        /* 通用板块样式 */
        .section {
            padding: 56px 0;
        }

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

        .section-deep {
            background: var(--darker);
            color: #fff;
        }

        .section-tight {
            padding: 40px 0;
        }

        .section-header {
            margin-bottom: 32px;
        }

        .section-header h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.4;
            margin: 0 0 10px 0;
            letter-spacing: -0.005em;
        }

        .section-header h2 .highlight {
            color: var(--primary);
        }

        .section-header p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
            max-width: 600px;
        }

        .section-deep .section-header h2 {
            color: #fff;
        }

        .section-deep .section-header p {
            color: var(--text-light);
        }

        /* 场景卡片主体 */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(240, 83, 46, 0.15);
        }

        .scenario-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #F0EDE8;
            position: relative;
        }

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

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

        .scenario-card .card-img .scene-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(17, 24, 39, 0.75);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }

        .scenario-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .scenario-card .card-body h3 {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--dark);
            margin: 0 0 8px 0;
            line-height: 1.4;
        }

        .scenario-card .card-body p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 16px 0;
            flex: 1;
        }

        .scenario-card .card-link {
            font-size: 0.84rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color 0.2s ease, gap 0.2s ease;
            align-self: flex-start;
            border-bottom: 1px solid transparent;
            padding-bottom: 2px;
        }

        .scenario-card .card-link:hover {
            color: var(--primary-hover);
            gap: 8px;
            border-bottom-color: var(--primary-hover);
        }

        .scenario-card .card-link:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .scenario-large {
            grid-column: span 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
        }

        .scenario-large .card-img {
            aspect-ratio: auto;
            min-height: 320px;
            height: 100%;
        }

        .scenario-large .card-body {
            justify-content: center;
            padding: 32px;
        }

        .scenario-large .card-body h3 {
            font-size: 1.35rem;
        }

        .scenario-large .card-body p {
            font-size: 0.93rem;
        }

        /* 数据指标条 */
        .metrics-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .metric-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
        }

        .metric-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(240, 83, 46, 0.15);
        }

        .metric-item .metric-value {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 6px;
        }

        .metric-item .metric-label {
            font-size: 0.86rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* 深度场景介绍 */
        .scene-feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .scene-feature {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .scene-feature:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .scene-feature .feature-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #F0EDE8;
        }

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

        .scene-feature:hover .feature-img img {
            transform: scale(1.03);
        }

        .scene-feature .feature-body {
            padding: 22px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .scene-feature .feature-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--dark);
            margin: 0 0 8px 0;
            line-height: 1.4;
        }

        .scene-feature .feature-body p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 12px 0;
            flex: 1;
        }

        .scene-feature .feature-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: auto;
        }

        .feature-tag {
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 0.74rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 16px;
            letter-spacing: 0.02em;
        }

        /* CTA 深色区块 */
        .cta-deep {
            background: var(--darker);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .cta-deep::before {
            content: '';
            position: absolute;
            top: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 200px;
            background: radial-gradient(ellipse, rgba(240, 83, 46, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-deep::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -40px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(246, 183, 60, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-deep h2 {
            font-size: 1.65rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px 0;
            line-height: 1.4;
            position: relative;
            z-index: 1;
        }

        .cta-deep h2 .highlight {
            color: var(--accent);
        }

        .cta-deep p {
            font-size: 0.93rem;
            color: var(--text-light);
            margin: 0 auto 24px;
            max-width: 520px;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }

        .cta-deep .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .cta-deep .btn {
            min-width: 140px;
        }

        .btn-accent {
            background: var(--accent);
            color: var(--darker);
            border-color: var(--accent);
            box-shadow: 0 2px 10px rgba(246, 183, 60, 0.3);
        }

        .btn-accent:hover {
            background: #E5A92E;
            border-color: #E5A92E;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(246, 183, 60, 0.4);
        }

        .btn-accent:focus-visible {
            outline: 3px solid rgba(246, 183, 60, 0.35);
            outline-offset: 2px;
        }

        .btn-accent:active {
            background: #D29A28;
            border-color: #D29A28;
            transform: translateY(0);
        }

        .btn-ghost-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.35);
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.55);
            transform: translateY(-2px);
        }

        .btn-ghost-light:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.25);
            outline-offset: 2px;
        }

        .btn-ghost-light:active {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(0);
        }

        /* 相关分类入口 */
        .related-links-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .related-link-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 6px;
        }

        .related-link-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(240, 83, 46, 0.15);
        }

        .related-link-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--dark);
            margin: 0;
            line-height: 1.4;
        }

        .related-link-card p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        .related-link-card .arrow {
            color: var(--primary);
            font-weight: 700;
            font-size: 1.1rem;
            transition: transform 0.2s ease;
            display: inline-block;
            margin-top: 4px;
        }

        .related-link-card:hover .arrow {
            transform: translateX(6px);
        }

        /* FAQ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all 0.25s ease;
        }

        .faq-item:hover {
            border-color: rgba(240, 83, 46, 0.2);
            box-shadow: var(--shadow-md);
        }

        .faq-item summary {
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--dark);
            line-height: 1.5;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            list-style: none;
            user-select: none;
            -webkit-tap-highlight-color: transparent;
            transition: color 0.2s ease;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

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

        .faq-item summary:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: -3px;
            border-radius: var(--radius-md);
        }

        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            transition: transform 0.35s ease, background 0.25s ease;
            font-weight: 400;
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-item .faq-answer {
            padding: 0 22px 20px 22px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        /* 页脚 */
        .site-footer {
            background: var(--darker);
            color: #E5E7EB;
            padding: 52px 0 24px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand p {
            font-size: 0.86rem;
            color: var(--text-light);
            line-height: 1.7;
            margin: 10px 0 0;
            max-width: 320px;
        }

        .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-logo .logo-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px 0;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 0.86rem;
            color: var(--text-light);
            transition: color 0.2s ease;
            display: inline-block;
            padding: 2px 0;
        }

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

        .footer-col ul a:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 4px;
        }

        .footer-subscribe input {
            flex: 1;
            padding: 10px 14px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: #fff;
            font-size: 0.84rem;
            transition: all 0.25s ease;
            min-width: 0;
        }

        .footer-subscribe input::placeholder {
            color: var(--text-light);
        }

        .footer-subscribe input:focus {
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.1);
            outline: none;
            box-shadow: 0 0 0 3px rgba(240, 83, 46, 0.2);
        }

        .footer-subscribe button {
            padding: 10px 16px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.82rem;
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
            border: 2px solid var(--primary);
        }

        .footer-subscribe button:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
        }

        .footer-subscribe button:focus-visible {
            outline: 3px solid rgba(240, 83, 46, 0.3);
            outline-offset: 2px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            font-size: 0.82rem;
            color: var(--text-light);
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            color: var(--text-light);
            transition: color 0.2s ease;
            padding: 2px 0;
        }

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

        .footer-bottom-links a:focus-visible {
            outline: 3px solid var(--primary-ring);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .footer-bottom-links .sep {
            color: rgba(255, 255, 255, 0.25);
            user-select: none;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .nav-links {
                gap: 16px;
            }

            .nav-links li a {
                font-size: 0.84rem;
            }

            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

            .scenario-large {
                grid-template-columns: 1fr;
                grid-column: span 2;
            }

            .scenario-large .card-img {
                min-height: 240px;
                aspect-ratio: 16/9;
            }

            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 24px;
            }

            .footer-brand {
                grid-column: span 3;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
            }

            .site-header {
                top: 12px;
                left: 12px;
                right: 12px;
            }

            .site-header.scrolled {
                top: 0;
                left: 8px;
                right: 8px;
            }

            .site-nav {
                padding: 0 16px;
                border-radius: 16px;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(255, 255, 255, 0.98);
                border-radius: 14px;
                padding: 16px 20px;
                gap: 6px;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
                border: 1px solid var(--border-light);
                backdrop-filter: blur(10px);
                -webkit-backdrop-filter: blur(10px);
            }

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

            .nav-links li a {
                font-size: 0.92rem;
                padding: 10px 0;
                display: block;
                border-bottom: 1px solid var(--border-light);
            }

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

            .nav-cta {
                display: none;
            }

            .nav-cta.open {
                display: flex;
                position: absolute;
                top: calc(100% + 8px + 220px);
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(255, 255, 255, 0.98);
                border-radius: 14px;
                padding: 14px 20px;
                gap: 10px;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
                border: 1px solid var(--border-light);
                backdrop-filter: blur(10px);
                -webkit-backdrop-filter: blur(10px);
            }

            .nav-cta.open .btn {
                width: 100%;
            }

            .nav-toggle {
                display: block;
            }

            .compact-hero {
                padding-top: calc(var(--nav-height) + 40px);
                padding-bottom: 24px;
            }

            .compact-hero h1 {
                font-size: 1.7rem;
                line-height: 1.35;
            }

            .compact-hero .hero-sub {
                font-size: 0.88rem;
            }

            .section {
                padding: 40px 0;
            }

            .section-header h2 {
                font-size: 1.4rem;
            }

            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .scenario-large {
                grid-column: span 1;
                grid-template-columns: 1fr;
            }

            .scenario-large .card-img {
                min-height: 200px;
                aspect-ratio: 16/9;
            }

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

            .scene-feature-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

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

            .cta-deep {
                padding: 36px 20px;
                border-radius: var(--radius-md);
            }

            .cta-deep h2 {
                font-size: 1.35rem;
            }

            .cta-deep .cta-actions {
                flex-direction: column;
                gap: 10px;
            }

            .cta-deep .btn {
                width: 100%;
                min-width: auto;
            }

            .faq-item summary {
                padding: 14px 16px;
                font-size: 0.88rem;
            }

            .faq-item .faq-answer {
                padding: 0 16px 16px;
                font-size: 0.84rem;
            }

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

            .footer-brand {
                grid-column: span 1;
            }

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

            .footer-bottom-links {
                gap: 6px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 12px;
                padding-right: 12px;
            }

            .site-nav {
                padding: 0 12px;
                border-radius: 14px;
            }

            .nav-logo {
                font-size: 1.2rem;
                gap: 6px;
            }

            .compact-hero h1 {
                font-size: 1.4rem;
            }

            .section-header h2 {
                font-size: 1.25rem;
            }

            .scenario-card .card-body {
                padding: 16px;
            }

            .scenario-card .card-body h3 {
                font-size: 1rem;
            }

            .scenario-card .card-body p {
                font-size: 0.82rem;
            }

            .metric-item .metric-value {
                font-size: 1.8rem;
            }

            .cta-deep {
                padding: 28px 16px;
            }

            .cta-deep h2 {
                font-size: 1.2rem;
            }
        }