/* roulang page: index */
:root {
            --brand-primary: #ff5000;
            --brand-primary-dark: #d63d00;
            --brand-secondary: #1f2429;
            --brand-accent: #ffb703;
            --bg-light: #f6f8fb;
            --bg-white: #ffffff;
            --text-main: #1d2129;
            --text-muted: #6b778c;
            --border-color: #eaedf1;
            --shadow-sm: 0 4px 12px rgba(0,0,0,0.05);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 36px rgba(255,80,0,0.12);
            --radius-md: 10px;
            --radius-lg: 16px;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            margin: 0;
            padding: 0;
            line-height: 1.6;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }
        a:hover, a:focus {
            color: var(--brand-primary);
        }

        .site-header {
            background: #ffffff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
        }
        .site-logo {
            font-size: 24px;
            font-weight: 800;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.5px;
        }
        .site-logo i {
            background: var(--brand-primary);
            color: #fff;
            padding: 8px;
            border-radius: 8px;
            font-size: 18px;
        }
        .main-nav ul {
            margin: 0;
            padding: 0;
            list-style: none;
            display: flex;
            gap: 28px;
            align-items: center;
        }
        .main-nav a {
            font-weight: 600;
            font-size: 15px;
            color: #4e5969;
            padding: 6px 0;
            position: relative;
        }
        .main-nav a.active, .main-nav a:hover {
            color: var(--brand-primary);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--brand-primary);
            border-radius: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .btn-brand {
            background: var(--brand-primary);
            color: #fff !important;
            padding: 10px 22px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px rgba(255, 80, 0, 0.3);
            border: none;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
        }
        .btn-brand:hover {
            background: var(--brand-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 80, 0, 0.4);
        }
        .btn-brand-outline {
            background: transparent;
            color: #ffffff !important;
            border: 2px solid #ffffff;
            padding: 9px 20px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-brand-outline:hover {
            background: #ffffff;
            color: var(--text-main) !important;
        }

        /* Hero */
        .hero-banner {
            position: relative;
            background: linear-gradient(135deg, rgba(31, 36, 41, 0.94) 0%, rgba(15, 18, 20, 0.88) 100%), url('/assets/images/40711aad254a54ea.jpg') center/cover no-repeat;
            padding: 100px 0 110px;
            color: #ffffff;
            overflow: hidden;
            clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
        }
        .hero-badge-tag {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #ffe600;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 24px;
            text-transform: uppercase;
        }
        .hero-title {
            font-size: 44px;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 20px;
            color: #ffffff;
            letter-spacing: -1px;
        }
        .hero-title span {
            color: var(--brand-primary);
        }
        .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: #d1d5db;
            margin-bottom: 32px;
            max-width: 680px;
        }
        .hero-burst {
            position: absolute;
            right: 4%;
            top: 15%;
            background: var(--brand-primary);
            color: #ffffff;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            box-shadow: 0 0 0 8px rgba(255, 80, 0, 0.25);
            transform: rotate(-12deg);
            animation: pulse 2.5s infinite;
        }
        .hero-burst-num {
            font-size: 28px;
            font-weight: 900;
            line-height: 1;
        }
        .hero-burst-txt {
            font-size: 12px;
            font-weight: 600;
        }
        @keyframes pulse {
            0% { transform: rotate(-12deg) scale(1); }
            50% { transform: rotate(-12deg) scale(1.06); }
            100% { transform: rotate(-12deg) scale(1); }
        }

        /* Generic Section */
        .section-block {
            padding: 70px 0;
            position: relative;
        }
        .section-block.alt-bg {
            background-color: #ffffff;
        }
        .section-header {
            margin-bottom: 45px;
            text-align: center;
        }
        .section-tag {
            color: var(--brand-primary);
            font-size: 13px;
            font-weight: 800;
            letter-spacing: 1px;
            text-transform: uppercase;
            display: inline-block;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--brand-secondary);
            margin-bottom: 14px;
        }
        .section-intro {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 760px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* Cards & Components */
        .category-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--brand-primary);
        }
        .cat-icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(255, 80, 0, 0.08);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
        }
        .cat-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .cat-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
            flex-grow: 1;
        }

        .product-item-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            height: 100%;
        }
        .product-item-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .product-img-box {
            position: relative;
            height: 190px;
            overflow: hidden;
        }
        .product-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .product-item-card:hover .product-img-box img {
            transform: scale(1.05);
        }
        .product-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(31, 36, 41, 0.85);
            color: #fff;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
        }
        .product-info-box {
            padding: 18px;
        }
        .product-name {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .product-spec {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 14px;
            line-height: 1.5;
        }
        .product-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px dashed var(--border-color);
            padding-top: 12px;
        }
        .badge-rating {
            color: #f59e0b;
            font-weight: 700;
            font-size: 13px;
        }

        /* Flow Process */
        .process-step-box {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 24px 20px;
            border-left: 4px solid var(--brand-primary);
            box-shadow: var(--shadow-sm);
            height: 100%;
        }
        .step-num {
            font-size: 26px;
            font-weight: 900;
            color: var(--brand-primary);
            margin-bottom: 8px;
        }

        /* Ranking Box */
        .rank-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .rank-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .rank-badge {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: #f0f2f5;
            color: #4e5969;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 15px;
        }
        .rank-badge.top-1 { background: #ff5000; color: #fff; }
        .rank-badge.top-2 { background: #ff7d00; color: #fff; }
        .rank-badge.top-3 { background: #ffaa00; color: #fff; }
        .rank-title { font-weight: 700; font-size: 15px; flex-grow: 1; }
        .rank-score { font-size: 13px; color: var(--text-muted); font-weight: 600; }

        /* Trust Banner */
        .guarantee-band {
            background: var(--brand-secondary);
            color: #ffffff;
            padding: 50px 0;
        }
        .guarantee-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }
        .guarantee-icon {
            font-size: 28px;
            color: var(--brand-primary);
        }

        /* Footer */
        .site-footer {
            background: #14171a;
            color: #8c9ba5;
            padding: 60px 0 30px;
            font-size: 14px;
        }
        .footer-logo {
            font-size: 22px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
            display: inline-block;
        }
        .footer-links-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links-list li {
            margin-bottom: 10px;
        }
        .footer-links-list a {
            color: #8c9ba5;
        }
        .footer-links-list a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 40px;
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
        }

        @media (max-width: 768px) {
            .hero-title { font-size: 28px; }
            .hero-burst { display: none; }
            .header-inner { flex-direction: column; gap: 14px; }
            .main-nav ul { gap: 14px; flex-wrap: wrap; justify-content: center; }
            .section-block { padding: 45px 0; }
        }

/* roulang page: index */
:root {
            --brand-primary: #d9230f;
            --brand-primary-hover: #b81c0a;
            --brand-secondary: #1a222d;
            --brand-accent: #f59e0b;
            --bg-light: #f8fafc;
            --bg-subtle: #edf2f7;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
            --card-hover-shadow: 0 20px 30px -10px rgba(217, 35, 15, 0.12), 0 10px 15px -5px rgba(0, 0, 0, 0.06);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: #ffffff;
            margin: 0;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--brand-primary);
            text-decoration: none;
            transition: all 0.25s ease-in-out;
        }
        a:hover, a:focus {
            color: var(--brand-primary-hover);
        }

        /* 顶部导航 */
        .site-header {
            background: #ffffff;
            border-bottom: 2px solid #f1f5f9;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.03);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 0;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--brand-secondary);
            letter-spacing: -0.5px;
        }
        .brand-logo i {
            color: var(--brand-primary);
            margin-right: 0.5rem;
            font-size: 1.75rem;
        }
        .nav-links {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 1.5rem;
        }
        .nav-links li a {
            color: #334155;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.4rem 0.8rem;
            border-radius: var(--radius-sm);
        }
        .nav-links li a:hover, .nav-links li.active a {
            color: var(--brand-primary);
            background-color: #fff1f0;
        }

        /* 斜切 Hero 与促销主视觉 */
        .hero-banner {
            position: relative;
            background: linear-gradient(135deg, rgba(26, 34, 45, 0.92) 0%, rgba(15, 23, 42, 0.88) 100%), url('/assets/images/40711aad254a54ea.jpg') center/cover no-repeat;
            color: #ffffff;
            padding: 5rem 0 7rem;
            clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
            overflow: hidden;
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .burst-tag {
            display: inline-block;
            background: var(--brand-primary);
            color: #ffffff;
            font-size: 0.85rem;
            font-weight: 700;
            padding: 0.35rem 1rem;
            border-radius: 50px;
            text-transform: uppercase;
            box-shadow: 0 4px 12px rgba(217, 35, 15, 0.4);
            margin-bottom: 1.25rem;
            border: 1px solid rgba(255,255,255,0.2);
            animation: pulse-glow 2s infinite;
        }
        @keyframes pulse-glow {
            0% { transform: scale(1); }
            50% { transform: scale(1.03); }
            100% { transform: scale(1); }
        }
        .hero-title {
            font-size: 2.75rem;
            font-weight: 900;
            line-height: 1.2;
            color: #ffffff;
            margin-bottom: 1.25rem;
        }
        .hero-title span {
            color: var(--brand-accent);
        }
        .hero-desc {
            font-size: 1.1rem;
            line-height: 1.8;
            color: #cbd5e1;
            margin-bottom: 2rem;
            max-width: 780px;
        }
        .hero-actions {
            display: flex;
            gap: 1.25rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .btn-fire {
            background-color: var(--brand-primary);
            color: #ffffff;
            padding: 0.9rem 2.2rem;
            font-size: 1.05rem;
            font-weight: 700;
            border-radius: var(--radius-sm);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            box-shadow: 0 6px 20px rgba(217, 35, 15, 0.5);
            transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
        }
        .btn-fire:hover {
            background-color: var(--brand-primary-hover);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(217, 35, 15, 0.6);
        }
        .btn-outline-white {
            background: transparent;
            color: #ffffff;
            border: 2px solid #ffffff;
            padding: 0.8rem 1.8rem;
            font-size: 1rem;
            font-weight: 700;
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-outline-white:hover {
            background: #ffffff;
            color: var(--brand-secondary);
        }

        /* 基础 Section 排版 */
        .section-padding {
            padding: 5rem 0;
        }
        .bg-subtle-band {
            background-color: var(--bg-light);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .bg-dark-band {
            background-color: var(--brand-secondary);
            color: #ffffff;
        }
        .section-header {
            margin-bottom: 3.5rem;
            text-align: center;
        }
        .section-tag {
            color: var(--brand-primary);
            font-weight: 800;
            font-size: 0.85rem;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            display: block;
            margin-bottom: 0.5rem;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--brand-secondary);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        .bg-dark-band .section-title {
            color: #ffffff;
        }
        .section-intro {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 720px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .bg-dark-band .section-intro {
            color: #94a3b8;
        }

        /* 卡片系统 */
        .spec-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            margin-bottom: 1.5rem;
            transition: all 0.3s ease;
            box-shadow: var(--card-shadow);
            height: calc(100% - 1.5rem);
            display: flex;
            flex-direction: column;
        }
        .spec-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-hover-shadow);
            border-color: #fca5a5;
        }
        .card-icon {
            width: 54px;
            height: 54px;
            background: #fee2e2;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            font-size: 1.5rem;
            margin-bottom: 1.25rem;
        }
        .card-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--brand-secondary);
        }
        .card-text {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            flex-grow: 1;
        }

        /* 品类网格入口 */
        .category-thumb-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            margin-bottom: 1.5rem;
            transition: all 0.3s ease;
        }
        .category-thumb-card:hover {
            box-shadow: var(--card-hover-shadow);
            transform: translateY(-3px);
        }
        .category-thumb-card img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            border-bottom: 2px solid #f1f5f9;
        }
        .category-thumb-body {
            padding: 1.25rem;
        }
        .category-badge {
            font-size: 0.75rem;
            background: #e2e8f0;
            color: #475569;
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: 600;
        }

        /* 附近推荐流 */
        .nearby-item {
            display: flex;
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            margin-bottom: 1.25rem;
            align-items: center;
            justify-content: space-between;
        }
        .nearby-info {
            display: flex;
            align-items: center;
            gap: 1.25rem;
        }
        .nearby-badge-pill {
            background: #f1f5f9;
            color: #334155;
            padding: 0.6rem 0.9rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1.1rem;
            text-align: center;
            min-width: 68px;
        }
        .nearby-badge-pill span {
            display: block;
            font-size: 0.7rem;
            color: #64748b;
            font-weight: normal;
        }

        /* 口碑榜组件 */
        .rank-card {
            border-left: 4px solid var(--brand-primary);
            background: #ffffff;
            padding: 1.5rem;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            box-shadow: var(--card-shadow);
            margin-bottom: 1.5rem;
        }
        .rank-stars {
            color: var(--brand-accent);
            margin-bottom: 0.5rem;
        }

        /* 流程步骤条 */
        .step-box {
            position: relative;
            text-align: center;
            padding: 1.5rem 1rem;
        }
        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #ffffff;
            font-weight: 800;
            font-size: 1.25rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.25rem;
            box-shadow: 0 4px 10px rgba(217, 35, 15, 0.3);
        }

        /* 数据指标大卡 */
        .stat-banner {
            padding: 3rem 0;
            background: #0f172a;
            color: #ffffff;
            text-align: center;
        }
        .stat-val {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--brand-accent);
            line-height: 1;
            margin-bottom: 0.5rem;
        }
        .stat-lbl {
            font-size: 0.95rem;
            color: #94a3b8;
        }

        /* 资讯列表 */
        .news-compact {
            padding: 1rem 0;
            border-bottom: 1px dashed var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .news-compact:last-child {
            border-bottom: none;
        }

        /* 页脚 */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 4rem 0 2rem;
            border-top: 4px solid var(--brand-primary);
            font-size: 0.9rem;
        }
        .footer-brand {
            color: #ffffff;
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 1rem;
            display: inline-block;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 0.6rem;
        }
        .footer-links a {
            color: #94a3b8;
        }
        .footer-links a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid #1e293b;
            text-align: center;
            font-size: 0.85rem;
        }

        /* 响应式调整 */
        @media screen and (max-width: 63.9375em) {
            .hero-title { font-size: 2.2rem; }
            .section-title { font-size: 1.8rem; }
        }
        @media screen and (max-width: 39.9375em) {
            .header-inner { flex-direction: column; gap: 1rem; }
            .nav-links { flex-wrap: wrap; justify-content: center; gap: 0.5rem; }
            .hero-banner { padding: 3.5rem 0 5rem; clip-path: none; text-align: center; }
            .hero-actions { justify-content: center; }
            .nearby-item { flex-direction: column; text-align: center; gap: 1rem; }
        }

/* roulang page: category2 */
:root {
      --brand-primary: #ff5000;
      --brand-primary-dark: #d63d00;
      --brand-secondary: #1f2429;
      --brand-accent: #ffb703;
      --bg-light: #f6f8fb;
      --bg-white: #ffffff;
      --text-main: #1d2129;
      --text-muted: #6b778c;
      --border-color: #eaedf1;
      --shadow-sm: 0 4px 12px rgba(0,0,0,0.05);
      --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
      --shadow-lg: 0 16px 36px rgba(255,80,0,0.12);
      --radius-md: 10px;
      --radius-lg: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      margin: 0;
      padding: 0;
      line-height: 1.6;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    a:hover, a:focus {
      color: var(--brand-primary);
    }
    .site-header {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 0;
    }
    .brand-logo {
      font-size: 22px;
      font-weight: 800;
      color: var(--brand-primary);
      display: flex;
      align-items: center;
      gap: 10px;
      letter-spacing: -0.5px;
    }
    .brand-logo i {
      background: var(--brand-primary);
      color: #fff;
      padding: 8px;
      border-radius: 8px;
      font-size: 16px;
    }
    .nav-links {
      margin: 0;
      padding: 0;
      list-style: none;
      display: flex;
      gap: 26px;
      align-items: center;
    }
    .nav-links a {
      font-weight: 600;
      font-size: 15px;
      color: #4e5969;
      padding: 6px 0;
      position: relative;
    }
    .nav-links li.active a, .nav-links a:hover {
      color: var(--brand-primary);
    }
    .nav-links li.active a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--brand-primary);
      border-radius: 2px;
    }

    /* Sub-page Trial Hero (版式蓝图硬性执行: 试用申请, 权益徽章 + 资格说明 + 申请按钮) */
    .trial-hero-section {
      background: linear-gradient(135deg, rgba(31, 36, 41, 0.95) 0%, rgba(15, 18, 20, 0.92) 100%), url('/assets/images/b8795b6bcba2e3b4.jpg') center/cover no-repeat;
      color: #ffffff;
      padding: 70px 0 80px;
      position: relative;
      border-bottom: 4px solid var(--brand-primary);
    }
    .hero-badge-wrap {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-bottom: 20px;
    }
    .trial-badge {
      background: rgba(255, 80, 0, 0.2);
      border: 1px solid var(--brand-primary);
      color: #ffaa80;
      padding: 5px 14px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .trial-badge.gold {
      background: rgba(255, 183, 3, 0.15);
      border-color: var(--brand-accent);
      color: #ffdd80;
    }
    .hero-main-title {
      font-size: 38px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 18px;
      color: #ffffff;
    }
    .hero-main-title span {
      color: var(--brand-primary);
    }
    .hero-sub-text {
      font-size: 16px;
      color: #cbd5e1;
      line-height: 1.8;
      margin-bottom: 28px;
      max-width: 760px;
    }
    .trial-card-box {
      background: #ffffff;
      color: var(--text-main);
      padding: 30px;
      border-radius: var(--radius-lg);
      box-shadow: 0 20px 40px rgba(0,0,0,0.25);
      border-top: 4px solid var(--brand-primary);
    }
    .trial-card-box h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--brand-secondary);
    }
    .trial-card-box p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 18px;
      line-height: 1.6;
    }
    .qualify-list {
      list-style: none;
      padding: 0;
      margin: 0 0 22px 0;
    }
    .qualify-list li {
      font-size: 13px;
      padding: 6px 0;
      color: #334155;
      display: flex;
      align-items: center;
      gap: 8px;
      border-bottom: 1px dashed #e2e8f0;
    }
    .qualify-list li i {
      color: #10b981;
      font-size: 14px;
    }
    .btn-apply {
      display: block;
      width: 100%;
      text-align: center;
      background: var(--brand-primary);
      color: #ffffff !important;
      font-weight: 700;
      font-size: 15px;
      padding: 12px 20px;
      border-radius: 8px;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(255, 80, 0, 0.35);
      transition: all 0.3s ease;
    }
    .btn-apply:hover {
      background: var(--brand-primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(255, 80, 0, 0.45);
    }

    /* Common Sections */
    .content-block {
      padding: 70px 0;
    }
    .content-block.bg-alt {
      background-color: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-head {
      margin-bottom: 45px;
    }
    .section-head .sec-tag {
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--brand-primary);
      letter-spacing: 1px;
      display: inline-block;
      margin-bottom: 8px;
    }
    .section-head .sec-title {
      font-size: 30px;
      font-weight: 800;
      color: var(--brand-secondary);
      line-height: 1.35;
      margin-bottom: 14px;
    }
    .section-head .sec-desc {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 720px;
      margin: 0;
      line-height: 1.7;
    }

    /* Tier Detail Cards (1~9 grade grouped) */
    .tier-group-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 30px;
      margin-bottom: 30px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      height: calc(100% - 30px);
      display: flex;
      flex-direction: column;
    }
    .tier-group-card:hover {
      border-color: var(--brand-primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .tier-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid #f1f5f9;
      padding-bottom: 16px;
      margin-bottom: 18px;
    }
    .tier-tag {
      font-size: 12px;
      font-weight: 700;
      background: #eff6ff;
      color: #2563eb;
      padding: 4px 10px;
      border-radius: 4px;
    }
    .tier-tag.orange {
      background: #fff7ed;
      color: var(--brand-primary);
    }
    .tier-tag.dark {
      background: #f1f5f9;
      color: #334155;
    }
    .tier-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--brand-secondary);
      margin: 0;
    }
    .param-row {
      display: flex;
      justify-content: space-between;
      padding: 8px 0;
      font-size: 13px;
      border-bottom: 1px dotted #f1f5f9;
    }
    .param-label {
      color: var(--text-muted);
    }
    .param-val {
      font-weight: 600;
      color: #0f172a;
    }
    .tier-desc {
      font-size: 14px;
      color: #475569;
      margin-top: 16px;
      line-height: 1.6;
      flex-grow: 1;
    }
    .tier-img-wrap {
      border-radius: 8px;
      overflow: hidden;
      margin-bottom: 16px;
      height: 150px;
    }
    .tier-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* Comparison Table Block */
    .standard-table-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .spec-table {
      width: 100%;
      border-collapse: collapse;
      margin: 0;
      text-align: left;
    }
    .spec-table th {
      background: #f8fafc;
      padding: 14px 18px;
      font-size: 14px;
      font-weight: 700;
      color: #334155;
      border-bottom: 2px solid var(--border-color);
    }
    .spec-table td {
      padding: 14px 18px;
      font-size: 13px;
      color: #475569;
      border-bottom: 1px solid #f1f5f9;
    }
    .spec-table tr:hover td {
      background-color: #fafbfc;
    }
    .highlight-cell {
      color: var(--brand-primary);
      font-weight: 700;
    }

    /* Inspection Metrics Step Flow */
    .flow-step-box {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      position: relative;
      margin-bottom: 20px;
    }
    .flow-number {
      width: 36px;
      height: 36px;
      background: var(--brand-primary);
      color: #ffffff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      font-weight: 800;
      font-size: 16px;
      margin-bottom: 14px;
    }
    .flow-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--brand-secondary);
      margin-bottom: 8px;
    }
    .flow-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0;
    }

    /* Assurance Metrics Grid */
    .metric-panel {
      background: #ffffff;
      border-left: 4px solid var(--brand-primary);
      padding: 22px 26px;
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      border-top: 1px solid var(--border-color);
      border-right: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 24px;
    }
    .metric-panel .num {
      font-size: 32px;
      font-weight: 900;
      color: var(--brand-primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .metric-panel .lbl {
      font-size: 15px;
      font-weight: 700;
      color: var(--brand-secondary);
      margin-bottom: 6px;
    }
    .metric-panel .txt {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
      margin: 0;
    }

    /* Sample Request Form */
    .form-wrap-block {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }
    .form-control-row {
      margin-bottom: 20px;
    }
    .form-label {
      font-size: 14px;
      font-weight: 600;
      color: #334155;
      margin-bottom: 8px;
      display: block;
    }
    .form-input, .form-select, .form-textarea {
      width: 100%;
      height: 42px;
      border: 1px solid #cbd5e1;
      border-radius: 6px;
      padding: 0 14px;
      font-size: 14px;
      color: var(--text-main);
      background-color: #ffffff;
      outline: none;
      transition: border-color 0.2s ease;
    }
    .form-textarea {
      height: 90px;
      padding: 10px 14px;
      resize: vertical;
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--brand-primary);
      box-shadow: 0 0 0 3px rgba(255, 80, 0, 0.15);
    }

    /* Footer */
    .site-footer {
      background: #14171a;
      color: #94a3b8;
      padding: 60px 0 30px;
      font-size: 14px;
      border-top: 1px solid #262b30;
    }
    .footer-brand {
      font-size: 20px;
      font-weight: 800;
      color: #ffffff;
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }
    .footer-brand i {
      color: var(--brand-primary);
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #94a3b8;
    }
    .footer-links a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      border-top: 1px solid #262b30;
      padding-top: 24px;
      margin-top: 40px;
      font-size: 13px;
      color: #64748b;
      text-align: center;
    }
    
    @media (max-width: 768px) {
      .hero-main-title {
        font-size: 28px;
      }
      .nav-links {
        display: none;
      }
      .form-wrap-block {
        padding: 24px;
      }
    }

/* roulang page: category1 */
:root {
      --brand-primary: #ff5000;
      --brand-primary-dark: #d63d00;
      --brand-secondary: #1f2429;
      --brand-accent: #ffb703;
      --bg-light: #f6f8fb;
      --bg-white: #ffffff;
      --text-main: #1d2129;
      --text-muted: #6b778c;
      --border-color: #eaedf1;
      --shadow-sm: 0 4px 12px rgba(0,0,0,0.05);
      --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
      --shadow-lg: 0 16px 36px rgba(255,80,0,0.12);
      --radius-md: 10px;
      --radius-lg: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      margin: 0;
      padding: 0;
      line-height: 1.6;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    a:hover, a:focus {
      color: var(--brand-primary);
    }
    .site-header {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 0;
    }
    .brand-logo {
      font-size: 22px;
      font-weight: 800;
      color: var(--brand-primary);
      display: flex;
      align-items: center;
      gap: 10px;
      letter-spacing: -0.5px;
    }
    .brand-logo i {
      background: var(--brand-primary);
      color: #fff;
      padding: 8px;
      border-radius: 8px;
      font-size: 16px;
    }
    .nav-links {
      margin: 0;
      padding: 0;
      list-style: none;
      display: flex;
      gap: 28px;
      align-items: center;
    }
    .nav-links li a {
      font-weight: 600;
      font-size: 15px;
      color: #4e5969;
      padding: 6px 0;
      position: relative;
    }
    .nav-links li.active a, .nav-links li a:hover {
      color: var(--brand-primary);
    }
    .nav-links li.active a::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--brand-primary);
      border-radius: 2px;
    }
    .btn-brand {
      background: var(--brand-primary);
      color: #fff !important;
      padding: 10px 24px;
      border-radius: 30px;
      font-weight: 700;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 4px 14px rgba(255, 80, 0, 0.3);
      border: none;
      cursor: pointer;
      transition: all 0.3s ease;
    }
    .btn-brand:hover {
      background: var(--brand-primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 80, 0, 0.4);
    }
    .btn-outline-white {
      background: transparent;
      color: #ffffff !important;
      border: 1px solid rgba(255,255,255,0.4);
      padding: 9px 22px;
      border-radius: 30px;
      font-weight: 600;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-outline-white:hover {
      background: rgba(255,255,255,0.15);
      border-color: #ffffff;
    }
    
    /* Hero: 开发者 / 规约文档风格 */
    .hero-api {
      background: linear-gradient(135deg, #181d22 0%, #0e1215 100%);
      color: #ffffff;
      padding: 70px 0 80px;
      border-bottom: 1px solid #2d3748;
    }
    .api-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 14px;
      background: rgba(255, 80, 0, 0.15);
      border: 1px solid rgba(255, 80, 0, 0.35);
      color: var(--brand-accent);
      border-radius: 16px;
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }
    .hero-h1 {
      font-size: 38px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 18px;
      color: #ffffff;
    }
    .hero-h1 span {
      color: var(--brand-primary);
    }
    .hero-summary {
      font-size: 15px;
      color: #94a3b8;
      line-height: 1.7;
      margin-bottom: 30px;
    }
    .code-console-box {
      background: #0b0f14;
      border: 1px solid #232d3b;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 16px 40px rgba(0,0,0,0.5);
    }
    .console-header {
      background: #141b24;
      padding: 10px 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid #232d3b;
    }
    .console-dots {
      display: flex;
      gap: 6px;
    }
    .console-dots span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #334155;
    }
    .console-dots span:nth-child(1) { background: #ef4444; }
    .console-dots span:nth-child(2) { background: #f59e0b; }
    .console-dots span:nth-child(3) { background: #10b981; }
    .console-title {
      font-size: 12px;
      font-family: monospace;
      color: #64748b;
    }
    .console-content {
      padding: 18px 20px;
      font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
      font-size: 13px;
      line-height: 1.7;
      color: #cbd5e1;
      overflow-x: auto;
    }
    .token-kw { color: #f43f5e; font-weight: 600; }
    .token-fn { color: #38bdf8; }
    .token-str { color: #a3e635; }
    .token-num { color: #fbbf24; }

    /* Section 基础 */
    .section-block {
      padding: 70px 0;
    }
    .section-alt {
      background-color: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-header {
      margin-bottom: 40px;
    }
    .section-tag {
      font-size: 13px;
      font-weight: 700;
      color: var(--brand-primary);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
      display: inline-block;
    }
    .section-title {
      font-size: 28px;
      font-weight: 800;
      color: var(--brand-secondary);
      line-height: 1.35;
      margin-bottom: 12px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0;
    }

    /* 痛点与破局 */
    .pain-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      height: 100%;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .pain-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }
    .pain-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: #fee2e2;
      color: #dc2626;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 18px;
    }
    .solve-icon {
      background: #e0f2fe;
      color: #0284c7;
    }
    .pain-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #0f172a;
    }
    .pain-text {
      font-size: 14px;
      color: #64748b;
      line-height: 1.6;
      margin-bottom: 0;
    }

    /* 流程步骤 */
    .step-box {
      position: relative;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .step-index {
      font-size: 32px;
      font-weight: 900;
      color: rgba(255, 80, 0, 0.15);
      line-height: 1;
      position: absolute;
      top: 18px;
      right: 20px;
    }
    .step-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--brand-secondary);
    }
    .step-desc {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0;
    }

    /* 指标统计 */
    .stat-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px 20px;
      text-align: center;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .stat-number {
      font-size: 38px;
      font-weight: 900;
      color: var(--brand-primary);
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .stat-label {
      font-size: 14px;
      font-weight: 700;
      color: #334155;
      margin-bottom: 4px;
    }
    .stat-sub {
      font-size: 12px;
      color: #94a3b8;
      margin: 0;
    }

    /* 图文技术规范清单 */
    .spec-media-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
    }
    .spec-media-box img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      display: block;
    }
    .spec-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .spec-list-item {
      padding: 16px 0;
      border-bottom: 1px solid var(--border-color);
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }
    .spec-list-item:last-child {
      border-bottom: none;
    }
    .spec-icon {
      color: var(--brand-primary);
      font-size: 18px;
      margin-top: 2px;
    }
    .spec-body h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 4px;
      color: #1e293b;
    }
    .spec-body p {
      font-size: 13.5px;
      color: #64748b;
      margin: 0;
      line-height: 1.5;
    }

    /* 适用行业与应用场景 */
    .scene-grid-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      display: flex;
      align-items: center;
      gap: 16px;
      box-shadow: var(--shadow-sm);
    }
    .scene-icon-wrap {
      width: 50px;
      height: 50px;
      border-radius: 10px;
      background: #f1f5f9;
      color: var(--brand-secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      flex-shrink: 0;
    }
    .scene-item-title {
      font-size: 16px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 4px;
    }
    .scene-item-text {
      font-size: 13px;
      color: #64748b;
      margin: 0;
      line-height: 1.5;
    }

    /* 权威质检与实测反馈 */
    .audit-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      height: 100%;
      box-shadow: var(--shadow-sm);
      position: relative;
    }
    .audit-quote {
      font-size: 14px;
      line-height: 1.7;
      color: #334155;
      margin-bottom: 20px;
    }
    .audit-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }
    .audit-avatar {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #475569;
      font-size: 14px;
      font-weight: 700;
    }
    .audit-name {
      font-size: 14px;
      font-weight: 700;
      color: #0f172a;
    }
    .audit-role {
      font-size: 12px;
      color: #94a3b8;
    }

    /* 转化收口区 */
    .cta-banner {
      background: linear-gradient(135deg, #1f2429 0%, #111417 100%);
      border-radius: var(--radius-lg);
      padding: 50px 40px;
      color: #ffffff;
      position: relative;
      overflow: hidden;
      border: 1px solid #2d3748;
    }
    .cta-title {
      font-size: 28px;
      font-weight: 800;
      margin-bottom: 12px;
      color: #ffffff;
    }
    .cta-desc {
      font-size: 15px;
      color: #94a3b8;
      max-width: 600px;
      line-height: 1.6;
      margin-bottom: 24px;
    }

    /* 页脚 */
    .site-footer {
      background: #11161b;
      color: #94a3b8;
      padding: 60px 0 25px;
      border-top: 1px solid #1e2630;
    }
    .footer-brand {
      font-size: 18px;
      font-weight: 800;
      color: #ffffff;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #94a3b8;
      font-size: 14px;
    }
    .footer-links a:hover {
      color: var(--brand-primary);
    }
    .footer-bottom {
      margin-top: 40px;
      padding-top: 20px;
      border-top: 1px solid #1e2630;
      font-size: 13px;
      color: #64748b;
      text-align: center;
    }

    @media (max-width: 768px) {
      .hero-h1 { font-size: 28px; }
      .header-inner { flex-direction: column; gap: 14px; }
      .nav-links { flex-wrap: wrap; justify-content: center; gap: 16px; }
      .cta-banner { padding: 30px 20px; text-align: center; }
      .cta-desc { margin-left: auto; margin-right: auto; }
      .spec-media-box img { height: 240px; }
    }

/* roulang page: category3 */
:root {
      --brand-primary: #ff5000;
      --brand-primary-dark: #d63d00;
      --brand-secondary: #1f2429;
      --brand-accent: #ffb703;
      --bg-light: #f6f8fb;
      --bg-white: #ffffff;
      --text-main: #1d2129;
      --text-muted: #6b778c;
      --border-color: #eaedf1;
      --shadow-sm: 0 4px 12px rgba(0,0,0,0.05);
      --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
      --shadow-lg: 0 16px 36px rgba(255,80,0,0.12);
      --radius-md: 10px;
      --radius-lg: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      margin: 0;
      padding: 0;
      line-height: 1.6;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    a:hover, a:focus {
      color: var(--brand-primary);
    }
    .site-header {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 0;
    }
    .brand-logo {
      font-size: 22px;
      font-weight: 800;
      color: var(--brand-primary);
      display: flex;
      align-items: center;
      gap: 10px;
      letter-spacing: -0.5px;
    }
    .brand-logo i {
      background: var(--brand-primary);
      color: #fff;
      padding: 8px;
      border-radius: 8px;
      font-size: 16px;
    }
    .nav-links {
      margin: 0;
      padding: 0;
      list-style: none;
      display: flex;
      gap: 28px;
      align-items: center;
    }
    .nav-links li a {
      font-weight: 600;
      font-size: 15px;
      color: #4e5969;
      padding: 6px 0;
      position: relative;
    }
    .nav-links li.active a, .nav-links li a:hover {
      color: var(--brand-primary);
    }
    .nav-links li.active a::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--brand-primary);
      border-radius: 2px;
    }
    
    /* Hero Section */
    .page-hero {
      position: relative;
      background: linear-gradient(135deg, rgba(31, 36, 41, 0.95) 0%, rgba(15, 18, 20, 0.92) 100%), url('/assets/images/40711aad254a54ea.jpg') center/cover no-repeat;
      padding: 80px 0 90px;
      color: #ffffff;
      margin-bottom: 20px;
    }
    .hero-badge {
      background: rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: var(--brand-accent);
      padding: 6px 16px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 20px;
    }
    .page-hero h1 {
      font-size: 40px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 18px;
      color: #ffffff;
      letter-spacing: -0.5px;
    }
    .page-hero h1 span {
      color: var(--brand-primary);
    }
    .hero-summary {
      font-size: 16px;
      line-height: 1.8;
      color: #d1d5db;
      margin-bottom: 30px;
      max-width: 680px;
    }
    .hero-stat-card {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      padding: 24px;
      border-radius: var(--radius-md);
      backdrop-filter: blur(10px);
    }

    /* Section Global */
    .section-block {
      padding: 70px 0;
    }
    .section-block.bg-alt {
      background-color: #ffffff;
    }
    .block-header {
      margin-bottom: 45px;
    }
    .block-header h2 {
      font-size: 30px;
      font-weight: 800;
      color: var(--brand-secondary);
      margin-bottom: 12px;
      line-height: 1.3;
    }
    .block-header p {
      color: var(--text-muted);
      font-size: 15px;
      max-width: 700px;
      margin-bottom: 0;
    }

    /* Cards & Components */
    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      height: 100%;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      position: relative;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #ffccb3;
    }
    .feature-icon {
      width: 50px;
      height: 50px;
      border-radius: 10px;
      background: rgba(255, 80, 0, 0.08);
      color: var(--brand-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
    }
    .feature-card h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* Step Sequence */
    .process-item {
      display: flex;
      gap: 20px;
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      margin-bottom: 20px;
    }
    .step-badge {
      width: 44px;
      height: 44px;
      background: var(--brand-secondary);
      color: #ffffff;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 16px;
      flex-shrink: 0;
    }
    .step-badge.highlight {
      background: var(--brand-primary);
    }

    /* Metric Box */
    .metric-grid {
      background: var(--brand-secondary);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
    }
    .metric-num {
      font-size: 38px;
      font-weight: 900;
      color: var(--brand-accent);
      line-height: 1;
      margin-bottom: 8px;
    }
    .metric-desc {
      font-size: 14px;
      color: #94a3b8;
      margin-bottom: 0;
    }

    /* Testimonial / Evidence */
    .evidence-panel {
      background: #ffffff;
      border-left: 4px solid var(--brand-primary);
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      padding: 24px;
      box-shadow: var(--shadow-sm);
      height: 100%;
    }
    .evidence-quote {
      font-size: 14.5px;
      color: #334155;
      line-height: 1.75;
      margin-bottom: 16px;
    }
    .evidence-author {
      font-weight: 700;
      font-size: 13.5px;
      color: var(--brand-secondary);
    }

    /* Action Strip */
    .cta-banner {
      background: linear-gradient(135deg, #1f2429 0%, #111518 100%);
      border-radius: var(--radius-lg);
      padding: 48px 40px;
      color: #ffffff;
      position: relative;
      overflow: hidden;
    }
    .cta-banner h2 {
      font-size: 28px;
      font-weight: 800;
      margin-bottom: 12px;
      color: #ffffff;
    }
    .btn-action {
      background: var(--brand-primary);
      color: #ffffff !important;
      padding: 12px 28px;
      border-radius: 30px;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 4px 14px rgba(255, 80, 0, 0.35);
      border: none;
    }
    .btn-action:hover {
      background: var(--brand-primary-dark);
      transform: translateY(-2px);
    }

    /* Footer */
    .site-footer {
      background: #14181c;
      color: #94a3b8;
      padding: 60px 0 30px;
      margin-top: 60px;
      border-top: 1px solid #232930;
    }
    .footer-brand {
      color: #ffffff;
      font-size: 20px;
      font-weight: 800;
      display: inline-block;
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #94a3b8;
      font-size: 14px;
    }
    .footer-links a:hover {
      color: var(--brand-primary);
    }
    .footer-bottom {
      margin-top: 45px;
      padding-top: 25px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      text-align: center;
      font-size: 13px;
      color: #64748b;
    }

    @media (max-width: 768px) {
      .header-inner {
        flex-direction: column;
        gap: 12px;
      }
      .nav-links {
        gap: 16px;
        flex-wrap: wrap;
        justify-content: center;
      }
      .page-hero {
        padding: 50px 0 60px;
      }
      .page-hero h1 {
        font-size: 28px;
      }
      .metric-grid {
        padding: 24px;
      }
      .cta-banner {
        padding: 30px 20px;
        text-align: center;
      }
    }

/* roulang page: category4 */
:root {
            --brand-primary: #ff5000;
            --brand-primary-dark: #d63d00;
            --brand-secondary: #1f2429;
            --brand-accent: #ffb703;
            --bg-light: #f6f8fb;
            --bg-white: #ffffff;
            --text-main: #1d2129;
            --text-muted: #6b778c;
            --border-color: #eaedf1;
            --shadow-sm: 0 4px 12px rgba(0,0,0,0.05);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 36px rgba(255,80,0,0.12);
            --radius-md: 10px;
            --radius-lg: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            margin: 0;
            padding: 0;
            line-height: 1.6;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }
        a:hover, a:focus {
            color: var(--brand-primary);
        }
        .site-header {
            background: #ffffff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
        }
        .brand-logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.5px;
        }
        .brand-logo i {
            background: var(--brand-primary);
            color: #fff;
            padding: 8px;
            border-radius: 8px;
            font-size: 16px;
        }
        .nav-links {
            margin: 0;
            padding: 0;
            list-style: none;
            display: flex;
            gap: 24px;
            align-items: center;
        }
        .nav-links li a {
            font-weight: 600;
            font-size: 15px;
            color: #4e5969;
            padding: 6px 0;
            position: relative;
        }
        .nav-links li.active a, .nav-links li a:hover {
            color: var(--brand-primary);
        }
        .nav-links li.active a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--brand-primary);
            border-radius: 2px;
        }
        .guide-hero {
            background: linear-gradient(135deg, rgba(31, 36, 41, 0.95) 0%, rgba(20, 24, 28, 0.92) 100%), url('/assets/images/266f9f808819e80b.webp') center/cover no-repeat;
            padding: 80px 0;
            color: #ffffff;
        }
        .guide-hero h1 {
            font-size: 38px;
            font-weight: 800;
            margin-bottom: 16px;
            color: #ffffff;
            line-height: 1.3;
        }
        .guide-hero p {
            font-size: 16px;
            color: #cbd5e1;
            line-height: 1.8;
            max-width: 760px;
            margin-bottom: 24px;
        }
        .tag-pill {
            display: inline-block;
            background: rgba(255, 80, 0, 0.2);
            border: 1px solid var(--brand-primary);
            color: #ff915b;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .section-block {
            padding: 64px 0;
        }
        .section-block.alt-bg {
            background: #ffffff;
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--brand-secondary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-title::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 22px;
            background: var(--brand-primary);
            border-radius: 2px;
        }
        .section-intro {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .spec-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            height: 100%;
        }
        .spec-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: #ffd6c2;
        }
        .spec-card .icon-box {
            width: 48px;
            height: 48px;
            background: #fff3ed;
            color: var(--brand-primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }
        .spec-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--brand-secondary);
        }
        .spec-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .step-timeline {
            position: relative;
            padding-left: 28px;
            border-left: 2px dashed #cbd5e1;
            margin-left: 10px;
        }
        .step-item {
            position: relative;
            margin-bottom: 32px;
        }
        .step-item:last-child {
            margin-bottom: 0;
        }
        .step-dot {
            position: absolute;
            left: -35px;
            top: 2px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--brand-primary);
            border: 3px solid #ffffff;
            box-shadow: 0 0 0 2px var(--brand-primary);
        }
        .step-item h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }
        .table-custom {
            width: 100%;
            border-collapse: collapse;
            background: #ffffff;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .table-custom th {
            background: #1f2429;
            color: #ffffff;
            font-weight: 600;
            padding: 14px 18px;
            text-align: left;
            font-size: 14px;
        }
        .table-custom td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
            color: #334155;
        }
        .table-custom tr:hover td {
            background-color: #fff9f6;
        }
        .badge-status {
            display: inline-block;
            padding: 2px 8px;
            font-size: 12px;
            border-radius: 4px;
            font-weight: 600;
            background: #e2e8f0;
            color: #475569;
        }
        .badge-primary-soft {
            background: #fff0e6;
            color: var(--brand-primary-dark);
        }
        .site-footer {
            background: #15181b;
            color: #94a3b8;
            padding: 60px 0 24px;
            border-top: 4px solid var(--brand-primary);
        }
        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }
        .footer-brand i {
            color: var(--brand-primary);
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: #94a3b8;
            font-size: 0.9rem;
        }
        .footer-links a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid #262c33;
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
        }
        @media screen and (max-width: 768px) {
            .header-inner {
                flex-direction: column;
                gap: 12px;
            }
            .nav-links {
                gap: 12px;
                flex-wrap: wrap;
                justify-content: center;
            }
            .guide-hero h1 {
                font-size: 28px;
            }
        }