/* roulang page: index */
:root {
            --primary: #0B8F7C;
            --primary-dark: #087B6A;
            --primary-light: #E7F7F4;
            --accent: #F59E0B;
            --accent-light: #FEF3C7;
            --dark-bg: #0F172A;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --bg-light: #F7FAFC;
            --border-color: #E2E8F0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 12px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 6px 30px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.12);
            --transition-fast: all 0.2s ease;
            --transition-normal: all 0.35s ease;
            --header-h: 78px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background: #fff;
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: inline-block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input {
            font-family: inherit;
            outline: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }
        .section {
            padding: 90px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 100px;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            margin: 0 0 12px;
            color: var(--text-main);
            letter-spacing: -0.5px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .text-center {
            text-align: center;
        }

        /* ========== Buttons ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 100px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition-normal);
            line-height: 1.4;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(11, 143, 124, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(11, 143, 124, 0.35);
        }
        .btn-outline {
            background: transparent;
            border-color: #C9D4DE;
            color: var(--text-main);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.8);
            color: #fff;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }
        .btn-light:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 15px 36px;
            font-size: 16px;
        }

        /* ========== Header ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition-normal);
        }
        .site-header.header-scrolled {
            box-shadow: 0 4px 30px rgba(15, 23, 42, 0.08);
            background: rgba(255, 255, 255, 0.96);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            flex-shrink: 0;
        }
        .brand-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 17px;
            box-shadow: 0 4px 14px rgba(11, 143, 124, 0.3);
        }
        .brand-logo .logo-accent {
            color: var(--accent);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            margin: 0 24px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 4px;
            position: relative;
            transition: var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition-normal);
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #F1F5F9;
            border-radius: 100px;
            padding: 8px 18px;
            border: 1px solid transparent;
            transition: var(--transition-fast);
            max-width: 220px;
        }
        .search-box:focus-within {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(11, 143, 124, 0.12);
        }
        .search-box i {
            color: var(--text-muted);
            font-size: 14px;
        }
        .search-box input {
            border: none;
            background: transparent;
            font-size: 14px;
            color: var(--text-main);
            width: 100%;
            line-height: 1.4;
        }
        .search-box input::placeholder {
            color: #94A3B8;
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text-main);
            cursor: pointer;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            transition: var(--transition-fast);
        }
        .menu-toggle:hover {
            background: #F1F5F9;
            color: var(--primary);
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            min-height: 720px;
            display: flex;
            align-items: center;
            padding: calc(var(--header-h) + 70px) 0 90px;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-size: cover;
            background-position: center;
            z-index: -2;
        }
        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(11, 143, 124, 0.78) 100%);
            z-index: -1;
        }
        .hero-content {
            text-align: center;
            color: #fff;
            max-width: 860px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 100px;
            padding: 8px 22px;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.5px;
            backdrop-filter: blur(4px);
            margin-bottom: 26px;
        }
        .hero-badge i {
            color: var(--accent);
        }
        .hero h1 {
            font-size: 54px;
            font-weight: 900;
            line-height: 1.2;
            margin: 0 0 22px;
            letter-spacing: -1px;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }
        .hero-desc {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.9);
            margin: 0 auto 36px;
            max-width: 640px;
        }
        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }
        .hero-metrics {
            display: flex;
            justify-content: center;
            gap: 56px;
            flex-wrap: wrap;
        }
        .hero-metric {
            text-align: center;
        }
        .hero-metric .num {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.2;
        }
        .hero-metric .unit {
            font-size: 18px;
            font-weight: 600;
            margin-left: 2px;
        }
        .hero-metric .label {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
            letter-spacing: 0.5px;
        }

        /* ========== Stats ========== */
        .stats-section {
            background: var(--bg-light);
            padding: 70px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .stats-grid {
            display: flex;
            flex-wrap: wrap;
            margin: 0 -15px;
        }
        .stat-col {
            padding: 0 15px;
            margin-bottom: 20px;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition-normal);
            height: 100%;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .stat-icon {
            width: 54px;
            height: 54px;
            border-radius: 16px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin: 0 auto 18px;
        }
        .stat-number {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.2;
        }
        .stat-number span {
            font-size: 20px;
            color: var(--accent);
            margin-left: 2px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* ========== Categories ========== */
        .categories-section {
            background: #fff;
        }
        .category-col {
            padding: 0 16px;
            margin-bottom: 30px;
        }
        .category-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: transparent;
        }
        .category-card-img {
            position: relative;
            overflow: hidden;
            height: 200px;
        }
        .category-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .category-card:hover .category-card-img img {
            transform: scale(1.06);
        }
        .category-card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, 0.45) 100%);
        }
        .category-card-body {
            padding: 26px 28px 30px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 10px;
        }
        .category-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin: 0 0 18px;
        }
        .category-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            padding: 0;
            border: none;
            background: none;
            cursor: pointer;
            transition: var(--transition-fast);
        }
        .category-link i {
            transition: transform 0.3s ease;
        }
        .category-link:hover {
            color: var(--accent);
        }
        .category-link:hover i {
            transform: translateX(4px);
        }
        .category-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 100px;
            margin-bottom: 14px;
            width: fit-content;
        }

        /* ========== Features ========== */
        .features-section {
            background: var(--bg-light);
        }
        .features-layout {
            align-items: center;
        }
        .features-visual {
            padding: 0 30px 0 0;
        }
        .features-image-wrapper {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .features-image-wrapper img {
            width: 100%;
            height: 480px;
            object-fit: cover;
            display: block;
        }
        .experience-card {
            position: absolute;
            left: 30px;
            bottom: 30px;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-radius: var(--radius-md);
            padding: 18px 24px;
            display: flex;
            align-items: center;
            gap: 14px;
            box-shadow: var(--shadow-lg);
        }
        .experience-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .experience-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.2;
        }
        .experience-label {
            font-size: 13px;
            color: var(--text-muted);
        }
        .features-content {
            padding: 0 0 0 30px;
        }
        .features-content .section-tag {
            margin-bottom: 12px;
        }
        .features-content .section-title {
            font-size: 32px;
            margin-bottom: 10px;
        }
        .features-content .section-desc {
            text-align: left;
            margin: 0 0 30px;
            line-height: 1.7;
        }
        .feature-item {
            display: flex;
            gap: 16px;
            margin-bottom: 24px;
            padding: 20px;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition-normal);
        }
        .feature-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
            border-color: var(--primary);
        }
        .feature-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 19px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .feature-item h3 {
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 6px;
        }
        .feature-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== News ========== */
        .news-section {
            background: #fff;
        }
        .news-col {
            padding: 0 14px;
            margin-bottom: 28px;
        }
        .news-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition-normal);
            height: 100%;
        }
        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .news-card-link {
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .news-card-cover {
            position: relative;
            overflow: hidden;
            height: 190px;
        }
        .news-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card:hover .news-card-cover img {
            transform: scale(1.05);
        }
        .news-card-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(15, 23, 42, 0.35) 100%);
        }
        .news-card-tag {
            position: absolute;
            left: 14px;
            bottom: 14px;
            z-index: 2;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 100px;
            letter-spacing: 0.3px;
        }
        .news-card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.4;
            margin: 0 0 10px;
            color: var(--text-main);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            flex: 1;
            margin: 0 0 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid #F1F5F9;
            padding-top: 14px;
        }
        .news-card-meta i {
            margin-right: 4px;
            font-size: 12px;
        }
        .read-more {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition-fast);
        }
        .read-more:hover {
            color: var(--accent);
        }
        .read-more i {
            font-size: 12px;
        }
        .news-empty {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            color: var(--text-muted);
            font-size: 16px;
        }
        .news-empty i {
            font-size: 40px;
            display: block;
            margin-bottom: 14px;
            color: #CBD5E1;
        }

        /* Featured */
        .news-card-featured .news-card-cover {
            height: 280px;
        }
        .news-card-featured .news-card-body h3 {
            font-size: 20px;
        }
        .news-card-featured .news-card-body p {
            -webkit-line-clamp: 3;
        }

        /* ========== Process ========== */
        .process-section {
            background: var(--dark-bg);
            color: #fff;
        }
        .process-section .section-title {
            color: #fff;
        }
        .process-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }
        .process-section .section-tag {
            background: rgba(255, 255, 255, 0.1);
            color: var(--accent);
        }
        .process-col {
            padding: 0 16px;
            margin-bottom: 30px;
        }
        .process-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 34px 28px;
            text-align: center;
            height: 100%;
            transition: var(--transition-normal);
            position: relative;
        }
        .process-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .step-number {
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 42px;
            font-weight: 900;
            color: rgba(255, 255, 255, 0.08);
            line-height: 1;
        }
        .step-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 6px 20px rgba(11, 143, 124, 0.4);
        }
        .process-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 10px;
        }
        .process-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== Testimonials ========== */
        .testimonials-section {
            background: var(--bg-light);
        }
        .testimonial-col {
            padding: 0 16px;
            margin-bottom: 30px;
        }
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(226, 232, 240, 0.6);
            height: 100%;
            transition: var(--transition-normal);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .testimonial-stars {
            color: var(--accent);
            font-size: 14px;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }
        .testimonial-card blockquote {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-main);
            margin: 0 0 22px;
            padding: 0;
            border: none;
            position: relative;
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 14px;
            border-top: 1px solid #F1F5F9;
            padding-top: 18px;
        }
        .avatar {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }
        .author-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
        }
        .author-meta {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #fff;
        }
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
            list-style: none;
            padding: 0;
        }
        .faq-accordion .accordion-item {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition-fast);
            list-style: none;
        }
        .faq-accordion .accordion-item.is-active {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .faq-accordion .accordion-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--transition-fast);
        }
        .faq-accordion .accordion-title::after {
            content: "";
            width: 0;
            height: 0;
        }
        .faq-accordion .accordion-title:hover {
            color: var(--primary);
            background: rgba(11, 143, 124, 0.04);
        }
        .faq-accordion .accordion-title i {
            color: var(--primary);
            font-size: 14px;
            transition: transform 0.3s ease;
            margin-left: auto;
        }
        .faq-accordion .accordion-item.is-active .accordion-title i {
            transform: rotate(180deg);
        }
        .faq-accordion .accordion-content {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-accordion .accordion-content p {
            margin: 0;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--dark-bg);
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(11, 143, 124, 0.5), transparent 70%);
        }
        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -40%;
            left: -15%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.35), transparent 70%);
        }
        .cta-container {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
            color: #fff;
        }
        .cta-container h2 {
            font-size: 38px;
            font-weight: 800;
            margin: 0 0 16px;
            letter-spacing: -0.5px;
        }
        .cta-container p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            margin: 0 0 34px;
            line-height: 1.7;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0C1220;
            color: #9AA3AF;
            padding-top: 70px;
            font-size: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: flex;
            flex-wrap: wrap;
            margin: 0 -20px;
            padding-bottom: 50px;
        }
        .footer-col {
            padding: 0 20px;
            margin-bottom: 30px;
        }
        .footer-col.footer-brand-col {
            flex: 0 0 36%;
            max-width: 36%;
        }
        .footer-col.footer-links-col {
            flex: 0 0 26%;
            max-width: 26%;
        }
        .footer-col.footer-contact-col {
            flex: 0 0 38%;
            max-width: 38%;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }
        .footer-logo .logo-accent {
            color: var(--accent);
        }
        .footer-desc {
            line-height: 1.7;
            max-width: 320px;
            margin-bottom: 20px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #9AA3AF;
            font-size: 15px;
            transition: var(--transition-fast);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 18px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #9AA3AF;
            transition: var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a:hover {
            color: var(--accent);
            transform: translateX(3px);
        }
        .footer-links a i {
            font-size: 12px;
            color: var(--primary);
        }
        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .footer-contact li i {
            color: var(--primary);
            margin-top: 3px;
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 44px;
            }
            .main-nav {
                gap: 18px;
            }
            .search-box {
                max-width: 160px;
            }
            .features-layout .columns {
                padding: 0 15px;
            }
            .features-visual {
                padding: 0 0 30px;
            }
            .features-content {
                padding: 0;
            }
            .footer-col.footer-brand-col,
            .footer-col.footer-links-col,
            .footer-col.footer-contact-col {
                flex: 0 0 50%;
                max-width: 50%;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .hero {
                min-height: 600px;
                padding: calc(var(--header-h) + 40px) 0 60px;
            }
            .hero h1 {
                font-size: 34px;
                line-height: 1.25;
            }
            .hero-desc {
                font-size: 16px;
            }
            .hero-actions {
                gap: 12px;
                flex-direction: column;
                align-items: center;
            }
            .hero-metrics {
                gap: 30px;
            }
            .site-header {
                height: 66px;
            }
            .brand-logo {
                font-size: 19px;
            }
            .brand-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .main-nav {
                position: fixed;
                top: 66px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 24px 20px;
                box-shadow: 0 20px 40px rgba(15, 23, 42, 0.15);
                transform: translateY(-130%);
                transition: transform 0.35s ease;
                border-radius: 0 0 16px 16px;
                z-index: 999;
            }
            .main-nav.open {
                transform: translateY(0);
            }
            .nav-link {
                padding: 14px 8px;
                font-size: 16px;
                border-bottom: 1px solid #F1F5F9;
            }
            .nav-link::after {
                display: none;
            }
            .nav-link.active {
                color: var(--primary);
                background: var(--primary-light);
                border-radius: 8px;
                padding-left: 14px;
            }
            .nav-actions {
                gap: 10px;
            }
            .search-box {
                display: none;
            }
            .menu-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .category-col,
            .stat-col,
            .news-col,
            .testimonial-col,
            .process-col {
                padding: 0 12px;
            }
            .features-image-wrapper img {
                height: 300px;
            }
            .experience-card {
                left: 20px;
                bottom: 20px;
                padding: 14px 18px;
            }
            .experience-num {
                font-size: 22px;
            }
            .footer-col.footer-brand-col,
            .footer-col.footer-links-col,
            .footer-col.footer-contact-col {
                flex: 0 0 100%;
                max-width: 100%;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }
            .hero h1 {
                font-size: 29px;
            }
            .section-title {
                font-size: 26px;
            }
            .section-desc {
                font-size: 15px;
            }
            .hero-metrics {
                gap: 20px;
            }
            .hero-metric .num {
                font-size: 26px;
            }
            .stat-number {
                font-size: 30px;
            }
            .footer-social a {
                width: 34px;
                height: 34px;
            }
            .cta-container h2 {
                font-size: 28px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-lg {
                width: 100%;
                max-width: 260px;
            }
            .news-card-cover {
                height: 150px;
            }
            .news-card-featured .news-card-cover {
                height: 200px;
            }
        }
        @media (max-width: 420px) {
            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .brand-logo {
                font-size: 18px;
            }
            .nav-actions .btn-primary {
                display: none;
            }
        }

/* roulang page: article */
/* ========== 设计变量 ========== */
        :root {
            --primary: #e83e3c;
            --primary-dark: #c92a2a;
            --primary-light: #fff1f0;
            --accent: #10b981;
            --accent-dark: #059669;
            --accent-light: #ecfdf5;
            --bg: #f6f8fb;
            --bg-white: #ffffff;
            --bg-dark: #0d1117;
            --text: #1e2430;
            --text-light: #6b7280;
            --text-white: #f8fafc;
            --border: #e6eaf0;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(17, 24, 39, 0.05);
            --shadow: 0 8px 30px rgba(17, 24, 39, 0.08);
            --shadow-lg: 0 20px 50px rgba(17, 24, 39, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container: 1200px;
            --space-section: clamp(64px, 8vw, 110px);
        }

        /* ========== 基础 Reset ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
                "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
            border-radius: var(--radius);
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
        }

        /* ========== 容器 ========== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 按钮 ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            padding: 13px 30px;
            border-radius: 50px;
            box-shadow: 0 4px 15px rgba(232, 62, 60, 0.35);
            transition: var(--transition);
            font-size: 15px;
            letter-spacing: 0.3px;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(232, 62, 60, 0.45);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(232, 62, 60, 0.3);
        }
        .btn-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.35);
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 50px;
            transition: var(--transition);
            font-size: 15px;
        }
        .btn-light:hover {
            background: rgba(255, 255, 255, 0.3);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            font-weight: 600;
            padding: 11px 26px;
            border-radius: 50px;
            transition: var(--transition);
            font-size: 15px;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ========== 导航 Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 12px rgba(17, 24, 39, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--text);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border-radius: 12px;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(232, 62, 60, 0.3);
        }
        .logo-accent {
            color: var(--primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            padding: 10px 18px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 8px 16px;
            gap: 8px;
            transition: var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(232, 62, 60, 0.1);
            background: #fff;
        }
        .header-search input {
            background: transparent;
            border: none;
            font-size: 14px;
            width: 140px;
            color: var(--text);
        }
        .header-search input::placeholder {
            color: var(--text-light);
        }
        .header-search i {
            color: var(--text-light);
            font-size: 14px;
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--text);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: 50px;
            transition: var(--transition);
        }
        .header-cta:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            cursor: pointer;
            padding: 8px;
        }
        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* ========== 页面 Hero ========== */
        .page-hero {
            position: relative;
            padding: 90px 0 70px;
            background: linear-gradient(135deg, #0d1117, #1a1f2e);
            overflow: hidden;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 17, 23, 0.85), rgba(17, 24, 39, 0.75));
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 850px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            padding: 8px 20px;
            border-radius: 50px;
            backdrop-filter: blur(8px);
            margin-bottom: 20px;
        }
        .hero-badge i {
            color: var(--accent);
        }
        .page-title {
            font-size: clamp(28px, 4.5vw, 46px);
            color: #fff;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.25;
            letter-spacing: -1px;
        }
        .hero-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            margin-top: 18px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            flex-wrap: wrap;
        }
        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .hero-meta i {
            color: var(--accent);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .sep {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.4);
        }

        /* ========== 文章主体区域 ========== */
        .article-section {
            position: relative;
            z-index: 5;
            margin-top: -40px;
            padding-bottom: var(--space-section);
        }
        .article-layout {
            display: flex;
            gap: 32px;
            align-items: flex-start;
        }
        .main-content {
            flex: 1;
            min-width: 0;
        }
        .sidebar {
            width: 320px;
            flex-shrink: 0;
            position: sticky;
            top: 100px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .article-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            overflow: hidden;
            padding: 40px;
            border: 1px solid var(--border);
        }
        .article-cover {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 30px;
            box-shadow: var(--shadow-sm);
        }
        .article-cover img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            border-radius: var(--radius);
        }
        .article-body {
            font-size: 16.5px;
            line-height: 1.9;
            color: #374151;
        }
        .article-body h2,
        .article-body h3 {
            margin-top: 32px;
            margin-bottom: 14px;
            color: var(--text);
        }
        .article-body h2 {
            font-size: 24px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border);
        }
        .article-body h3 {
            font-size: 19px;
        }
        .article-body p {
            margin-bottom: 18px;
        }
        .article-body img {
            border-radius: var(--radius);
            margin: 20px 0;
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 18px 22px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 24px 0;
            color: var(--text);
        }
        .article-body ul {
            margin: 16px 0;
            padding-left: 0;
        }
        .article-body ul li {
            position: relative;
            padding-left: 26px;
            margin-bottom: 10px;
        }
        .article-body ul li::before {
            content: "\f058";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            color: var(--accent);
            font-size: 14px;
            top: 4px;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .article-tags .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg);
            border: 1px solid var(--border);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 13px;
            color: var(--text-light);
            transition: var(--transition);
        }
        .article-tags .tag:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
        }
        .article-not-found i {
            font-size: 48px;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .article-not-found h2 {
            font-size: 24px;
            margin-bottom: 10px;
        }
        .article-not-found p {
            color: var(--text-light);
            margin-bottom: 24px;
        }

        /* ========== 侧边栏 ========== */
        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 26px;
            border: 1px solid var(--border);
        }
        .sidebar-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            padding-bottom: 14px;
            border-bottom: 2px solid var(--border);
        }
        .sidebar-title i {
            color: var(--primary);
        }
        .sidebar-list li {
            margin-bottom: 10px;
        }
        .sidebar-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            background: var(--bg);
            font-size: 14px;
            color: var(--text);
            transition: var(--transition);
        }
        .sidebar-list a:hover {
            background: var(--primary-light);
            color: var(--primary);
            transform: translateX(4px);
        }
        .sidebar-list a i {
            font-size: 12px;
            color: var(--text-light);
            transition: var(--transition);
        }
        .sidebar-list a:hover i {
            color: var(--primary);
        }
        .sidebar-intro {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border: none;
            position: relative;
            overflow: hidden;
        }
        .sidebar-intro::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
        }
        .sidebar-intro .sidebar-title {
            color: #fff;
            border-color: rgba(255, 255, 255, 0.2);
        }
        .sidebar-intro p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
            line-height: 1.7;
        }

        /* ========== 数据亮点 ========== */
        .stats-section {
            padding: 40px 0 var(--space-section);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .stat-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px 4px 0 0;
        }
        .stat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }
        .stat-num {
            font-size: clamp(28px, 3.5vw, 40px);
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-light);
            font-weight: 500;
        }

        /* ========== 相关推荐 ========== */
        .related-section {
            padding: 40px 0 var(--space-section);
            background: var(--bg-white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 36px;
            gap: 20px;
        }
        .section-title {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            letter-spacing: -0.5px;
        }
        .section-title i {
            color: var(--primary);
            margin-right: 10px;
        }
        .section-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .section-link:hover {
            color: var(--primary-dark);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow);
        }
        .related-img {
            position: relative;
            overflow: hidden;
            height: 200px;
        }
        .related-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .related-card:hover .related-img img {
            transform: scale(1.06);
        }
        .related-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(232, 62, 60, 0.9);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 50px;
            backdrop-filter: blur(4px);
        }
        .related-body {
            padding: 22px;
        }
        .related-body h3 {
            font-size: 17px;
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .related-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 14px;
        }
        .related-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .related-link i {
            font-size: 11px;
            transition: var(--transition);
        }
        .related-link:hover i {
            transform: translateX(4px);
        }

        /* ========== 分类导航区 ========== */
        .cat-section {
            padding: var(--space-section) 0;
            background: var(--bg);
        }
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .cat-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            height: 280px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .cat-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }
        .cat-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .cat-card:hover img {
            transform: scale(1.06);
        }
        .cat-card-body {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(13, 17, 23, 0.88) 20%, rgba(13, 17, 23, 0.2) 60%, transparent);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 24px;
            color: #fff;
        }
        .cat-card-title {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .cat-card-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 14px;
            line-height: 1.6;
        }
        .cat-card-link {
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            opacity: 0.9;
        }
        .cat-card-link i {
            font-size: 11px;
            transition: var(--transition);
        }
        .cat-card-link:hover {
            color: var(--accent);
        }
        .cat-card-link:hover i {
            transform: translateX(4px);
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--space-section) 0;
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 28px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 17px;
            font-weight: 600;
            cursor: pointer;
            color: var(--text);
        }
        .faq-question i {
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }
        .faq-answer {
            margin-top: 14px;
            padding-left: 32px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.7;
            border-left: 3px solid var(--primary-light);
        }

        /* ========== CTA 区 ========== */
        .cta-section {
            padding: var(--space-section) 0;
            background: linear-gradient(135deg, #0d1117, #1a1f2e);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.2;
            z-index: 0;
        }
        .cta-box {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-title {
            font-size: clamp(26px, 4vw, 40px);
            color: #fff;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-desc {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            margin-bottom: 30px;
            line-height: 1.7;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0d1117;
            color: #a0aec0;
            padding: 64px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 20px;
            color: #8b95a5;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: #a0aec0;
            font-size: 16px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: #8b95a5;
            transition: var(--transition);
        }
        .footer-links a i {
            font-size: 10px;
            color: var(--accent);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: #8b95a5;
            margin-bottom: 12px;
        }
        .footer-contact li i {
            width: 20px;
            text-align: center;
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: #6b7280;
        }

        /* ========== 响应式 ========== */
        @media screen and (max-width: 1024px) {
            .article-layout {
                flex-direction: column;
            }
            .sidebar {
                width: 100%;
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .sidebar-card {
                flex: 1;
                min-width: 240px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-grid,
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media screen and (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                gap: 8px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                z-index: 99;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-link {
                padding: 14px 20px;
                font-size: 16px;
            }
            .nav-toggle {
                display: flex;
            }
            .header-search {
                display: none;
            }
            .header-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .page-hero {
                padding: 60px 0 50px;
            }
            .article-card {
                padding: 24px;
            }
            .article-cover img {
                height: 220px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-grid,
            .cat-grid {
                grid-template-columns: 1fr;
            }
            .hero-meta {
                flex-direction: column;
                gap: 10px;
            }
        }
        @media screen and (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .header-cta {
                display: none;
            }
            .btn-primary,
            .btn-light,
            .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .section-header {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .article-body {
                font-size: 15px;
            }
            .footer-social {
                justify-content: center;
            }
            .footer-brand-col {
                text-align: center;
            }
            .footer-logo {
                justify-content: center;
            }
            .footer-contact li {
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0a8f6e;
            --primary-dark: #087a5d;
            --primary-light: #e7f5f0;
            --secondary: #f59e0b;
            --secondary-light: #fffbeb;
            --accent: #ef4444;
            --bg: #f7faf9;
            --bg-deep: #0d2b26;
            --card-bg: #ffffff;
            --text-main: #1f2937;
            --text-weak: #6b7280;
            --text-light: #9ca3af;
            --border-color: #e5e7eb;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 8px rgba(16, 44, 38, 0.06);
            --shadow-md: 0 8px 26px rgba(16, 44, 38, 0.10);
            --shadow-lg: 0 18px 50px rgba(16, 44, 38, 0.14);
            --space-1: 8px;
            --space-2: 16px;
            --space-3: 28px;
            --space-4: 44px;
            --space-5: 72px;
            --transition: all .25s ease;
        }

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

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

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: inline-block;
            vertical-align: middle;
            border: 0;
        }

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.4;
            color: var(--text-main);
            font-weight: 700;
        }

        p {
            margin: 0;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 100%;
            margin: 0;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .section-padding {
            padding: var(--space-5) 0;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(229, 231, 235, 0.6);
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: 76px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 26px;
            font-weight: 800;
            letter-spacing: -0.4px;
            color: var(--text-main);
            flex-shrink: 0;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), #0bb98b);
            color: #fff;
            border-radius: 12px;
            font-size: 18px;
            box-shadow: 0 6px 16px rgba(10, 143, 110, 0.28);
        }

        .logo-accent {
            color: var(--primary);
        }

        .main-nav-wrapper {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
            justify-content: center;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-link {
            display: inline-block;
            padding: 10px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            line-height: 1.4;
            transition: var(--transition);
            background: transparent;
            border: 1px solid transparent;
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-link.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(10, 143, 110, 0.24);
        }

        .header-tools {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: #f1f5f4;
            border: 1px solid #e2e8e7;
            border-radius: 999px;
            padding: 8px 18px;
            gap: 10px;
            width: 210px;
            transition: var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(10, 143, 110, 0.12);
            background: #fff;
        }

        .search-box i {
            color: var(--text-light);
            font-size: 14px;
        }

        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            width: 100%;
            color: var(--text-main);
        }

        .search-box input::placeholder {
            color: var(--text-light);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: 999px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(10, 143, 110, 0.22);
            line-height: 1.4;
        }

        .header-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(10, 143, 110, 0.30);
            color: #fff;
        }

        .menu-toggle {
            display: none;
            width: 46px;
            height: 46px;
            border: 1px solid var(--border-color);
            background: #fff;
            border-radius: 12px;
            color: var(--text-main);
            font-size: 20px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

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

        /* ===== Mobile Menu Panel ===== */
        .mobile-menu-panel {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border-color);
            padding: 16px 24px 24px;
            box-shadow: 0 16px 30px rgba(16, 44, 38, 0.10);
        }

        .mobile-menu-panel.open {
            display: block;
        }

        .mobile-menu-panel .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .mobile-menu-panel .mobile-nav-link {
            display: block;
            padding: 13px 18px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-main);
            background: #fff;
            border: 1px solid transparent;
        }

        .mobile-menu-panel .mobile-nav-link:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .mobile-menu-panel .mobile-nav-link.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        .mobile-search {
            display: none;
            margin-bottom: 16px;
        }

        /* ===== Page Hero / Banner ===== */
        .page-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 110px 0 90px;
            text-align: center;
            isolation: isolate;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(8, 44, 37, 0.88), rgba(10, 80, 63, 0.72));
            z-index: -1;
        }

        .page-hero h1 {
            color: #fff;
            font-size: 46px;
            font-weight: 800;
            letter-spacing: -0.6px;
            margin-bottom: 18px;
            text-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
        }

        .page-hero h1 span {
            color: #5fd6b4;
        }

        .page-hero p {
            color: rgba(255, 255, 255, 0.88);
            font-size: 18px;
            max-width: 660px;
            margin: 0 auto;
            line-height: 1.8;
        }

        .hero-breadcrumb {
            margin-top: 28px;
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: underline;
        }

        .hero-breadcrumb a:hover {
            color: #fff;
        }

        /* ===== Section Header ===== */
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 14px;
            border: 1px solid rgba(10, 143, 110, 0.12);
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.4px;
            line-height: 1.3;
        }

        .section-header p {
            color: var(--text-weak);
            font-size: 17px;
            max-width: 620px;
            margin: 14px auto 0;
        }

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

        .section-header.light p {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ===== Card Common ===== */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(229, 231, 235, 0.7);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
            border-color: rgba(10, 143, 110, 0.2);
        }

        /* ===== Content Grid Cards ===== */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .content-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(229, 231, 235, 0.7);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .content-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
            border-color: rgba(10, 143, 110, 0.25);
        }

        .card-image {
            position: relative;
            height: 220px;
            overflow: hidden;
            background: var(--primary-light);
        }

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

        .content-card:hover .card-image img {
            transform: scale(1.06);
        }

        .card-image .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(255, 255, 255, 0.94);
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 13px;
            border-radius: 999px;
            backdrop-filter: blur(6px);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        }

        .badge.badge-primary {
            background: var(--primary);
            color: #fff;
            border: none;
        }

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

        .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 10px;
        }

        .card-body h3 a {
            color: var(--text-main);
        }

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

        .card-body p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.75;
            margin-bottom: 18px;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-light);
            border-top: 1px solid #f1f3f4;
            padding-top: 16px;
            margin-top: 4px;
        }

        .card-meta i {
            margin-right: 4px;
        }

        /* ===== Health list ===== */
        .health-list-section {
            background: #fff;
        }

        .health-list-card {
            display: grid;
            grid-template-columns: 120px 1fr;
            gap: 24px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 22px 26px;
            margin-bottom: 18px;
            transition: var(--transition);
            align-items: center;
        }

        .health-list-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(10, 143, 110, 0.18);
            transform: translateX(6px);
        }

        .health-list-num {
            font-size: 52px;
            font-weight: 800;
            color: var(--primary-light);
            line-height: 1;
            text-align: center;
            font-family: "Arial", sans-serif;
        }

        .health-list-content h3 {
            font-size: 19px;
            margin-bottom: 6px;
        }

        .health-list-content p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.7;
        }

        /* ===== Comparison Panel ===== */
        .compare-section {
            background: linear-gradient(135deg, #eef7f4 0%, #f9fbfb 50%, #eef7f4 100%);
        }

        .compare-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-top: 30px;
        }

        .compare-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 36px;
            border: 1px solid rgba(229, 231, 235, 0.6);
            position: relative;
        }

        .compare-card.bad {
            border-top: 4px solid var(--accent);
        }

        .compare-card.good {
            border-top: 4px solid var(--primary);
        }

        .compare-card h3 {
            font-size: 22px;
            margin-bottom: 22px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .compare-card.bad h3 i {
            color: var(--accent);
        }

        .compare-card.good h3 i {
            color: var(--primary);
        }

        .compare-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .compare-list li {
            display: flex;
            gap: 12px;
            font-size: 15.5px;
            color: var(--text-main);
            align-items: flex-start;
        }

        .compare-list li i {
            margin-top: 3px;
            font-size: 15px;
            flex-shrink: 0;
        }

        .compare-card.bad .compare-list li i {
            color: var(--accent);
        }

        .compare-card.good .compare-list li i {
            color: var(--primary);
        }

        /* ===== Steps / Process ===== */
        .steps-section {
            background: var(--bg-deep);
            position: relative;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
        }

        .steps-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(9, 40, 34, 0.93);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }

        .step-card {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 34px 26px;
            text-align: center;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

        .step-card:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-6px);
            border-color: rgba(255, 255, 255, 0.28);
        }

        .step-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 20px;
            background: rgba(95, 214, 180, 0.15);
            border: 1px solid rgba(95, 214, 180, 0.35);
            border-radius: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: #5fd6b4;
        }

        .step-card h3 {
            color: #fff;
            font-size: 18px;
            margin-bottom: 12px;
        }

        .step-card p {
            color: rgba(255, 255, 255, 0.68);
            font-size: 14px;
            line-height: 1.7;
        }

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

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            margin-bottom: 14px;
            padding: 24px 28px;
            transition: var(--transition);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: rgba(10, 143, 110, 0.3);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
        }

        .faq-question i {
            color: var(--primary);
            font-size: 16px;
            transition: var(--transition);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            margin-top: 14px;
            border-top: 1px solid #f1f3f4;
            padding-top: 14px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #0bb98b 100%);
            position: relative;
            overflow: hidden;
            padding: 70px 0;
            text-align: center;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            width: 400px;
            height: 400px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
            top: -180px;
            left: -120px;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.9);
            max-width: 620px;
            margin: 0 auto 30px;
            font-size: 17px;
            position: relative;
            z-index: 1;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--primary-dark);
            font-size: 16px;
            font-weight: 700;
            padding: 15px 38px;
            border-radius: 999px;
            border: none;
            cursor: pointer;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
            transition: var(--transition);
            position: relative;
            z-index: 1;
        }

        .cta-btn:hover {
            background: #f1f5f4;
            transform: translateY(-3px);
            box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
            color: var(--primary-dark);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0b1f1b;
            color: rgba(255, 255, 255, 0.72);
            padding: 70px 0 30px;
            font-size: 14.5px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 50px;
            margin-bottom: 50px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            font-size: 16px;
        }

        .footer-desc {
            margin-bottom: 20px;
            max-width: 340px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 12px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 17px;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
            border-color: rgba(255, 255, 255, 0.2);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .footer-links li,
        .footer-contact li {
            margin-bottom: 11px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #5fd6b4;
            padding-left: 4px;
        }

        .footer-links a i {
            font-size: 10px;
            color: var(--primary);
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: rgba(255, 255, 255, 0.65);
        }

        .footer-contact i {
            color: var(--primary);
            margin-top: 5px;
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 28px;
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 13px;
        }

        /* ===== Data Blocks ===== */
        .data-block-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .data-block {
            text-align: center;
            padding: 34px 20px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .data-number {
            font-size: 44px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 8px;
            font-family: "Arial", sans-serif;
        }

        .data-label {
            color: var(--text-weak);
            font-size: 15px;
            font-weight: 500;
        }

        /* ===== Rating / Quotes ===== */
        .quote-section {
            background: #fff;
        }

        .quote-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .quote-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 30px;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .quote-card::before {
            content: "\201C";
            position: absolute;
            top: 14px;
            left: 24px;
            font-size: 80px;
            color: var(--primary);
            opacity: 0.1;
            font-family: Georgia, serif;
            line-height: 1;
        }

        .quote-stars {
            color: #f5b40a;
            font-size: 14px;
            margin-bottom: 14px;
            display: flex;
            gap: 3px;
        }

        .quote-text {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-main);
            margin-bottom: 18px;
            position: relative;
            z-index: 1;
        }

        .quote-author {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-weak);
        }

        .quote-author-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .header-inner {
                gap: 10px;
            }

            .main-nav-wrapper {
                display: none;
            }

            .menu-toggle {
                display: inline-flex;
                order: 3;
            }

            .search-box {
                width: 170px;
            }

            .header-cta {
                display: none;
            }

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

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

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

            .compare-panel {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .search-box {
                display: none;
            }

            .mobile-search {
                display: block;
            }

            .mobile-search input {
                width: 100%;
                padding: 12px 18px;
                border: 1px solid var(--border-color);
                border-radius: 999px;
                font-size: 15px;
            }

            .page-hero {
                padding: 80px 0 60px;
            }

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

            .section-header h2 {
                font-size: 28px;
            }

            .content-grid,
            .quote-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }

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

            .data-number {
                font-size: 34px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .health-list-card {
                grid-template-columns: 1fr;
                text-align: center;
                gap: 12px;
                padding: 22px;
            }

            .health-list-num {
                font-size: 38px;
            }

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

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

            .compare-card {
                padding: 26px 22px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

            .header-inner {
                height: 66px;
            }

            .logo {
                font-size: 21px;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }

            .menu-toggle {
                width: 42px;
                height: 42px;
                font-size: 18px;
            }

            .page-hero h1 {
                font-size: 27px;
            }

            .page-hero p {
                font-size: 15px;
            }

            .data-block-grid {
                grid-template-columns: 1fr;
            }

            .cta-section h2 {
                font-size: 26px;
            }

            .cta-section p {
                font-size: 15px;
            }

            .cta-btn {
                padding: 13px 28px;
                font-size: 15px;
                width: 100%;
                justify-content: center;
            }

            .faq-item {
                padding: 18px 20px;
            }

            .card-image {
                height: 190px;
            }

            .footer-bottom p {
                font-size: 12px;
            }
        }

        /* Focus accessibility */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(10, 143, 110, 0.35);
            outline-offset: 2px;
        }

/* roulang page: category1 */
:root {
    --primary: #0a1f3c;
    --primary-deep: #071527;
    --primary-light: #153a66;
    --accent: #ff6b35;
    --accent-deep: #e8541f;
    --success: #0fa968;
    --bg: #f5f7fb;
    --bg-alt: #eef2f7;
    --card-bg: #ffffff;
    --text: #16233b;
    --text-weak: #5f6d81;
    --text-light: #a7b3c4;
    --border: #e4e9f0;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --shadow: 0 8px 28px rgba(10,31,60,.07);
    --shadow-lg: 0 18px 48px rgba(10,31,60,.13);
    --transition: .25s ease;
    --space: 96px;
    --header-h: 76px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; line-height: 1.65; font-size: 16px; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; transition: color var(--transition), background var(--transition), box-shadow var(--transition), transform var(--transition), border-color var(--transition); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
img { max-width: 100%; height: auto; display: block; border: 0; }
ul, ol, p, h1, h2, h3, h4, h5, figure { margin: 0; padding: 0; }
li { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; line-height: inherit; }
button { cursor: pointer; border: none; background: none; }
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.section { padding: var(--space) 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 700px; margin: 0 auto 52px; text-align: center; }
.section-tag { display: inline-block; padding: 6px 18px; border-radius: 40px; background: rgba(255,107,53,.12); color: var(--accent-deep); font-size: 13px; font-weight: 600; letter-spacing: 1px; margin-bottom: 16px; }
.section-title { font-size: 34px; font-weight: 800; line-height: 1.3; color: var(--primary); letter-spacing: .01em; }
.section-title span { color: var(--accent); }
.section-sub { margin-top: 12px; color: var(--text-weak); font-size: 16px; line-height: 1.7; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: 50px; font-weight: 600; font-size: 15px; border: 1.5px solid transparent; transition: all var(--transition); white-space: nowrap; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 6px 18px rgba(255,107,53,.35); }
.btn-primary:hover { background: var(--accent-deep); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(255,107,53,.42); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { border-color: rgba(255,255,255,.55); color: #fff; }
.btn-outline:hover { background: #fff; color: var(--primary); border-color: #fff; }
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-lg { padding: 15px 36px; font-size: 17px; }

.site-header { position: sticky; top: 0; z-index: 999; background: rgba(255,255,255,.94); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: var(--header-h); }
.brand-logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--primary); letter-spacing: .02em; flex-shrink: 0; }
.logo-icon { width: 38px; height: 38px; border-radius: 12px; background: linear-gradient(135deg, var(--accent), #ff9f43); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; box-shadow: 0 4px 12px rgba(255,107,53,.35); flex-shrink: 0; }
.logo-accent { color: var(--accent); }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav .nav-link { padding: 8px 16px; border-radius: 40px; font-size: 15px; font-weight: 500; color: var(--text-weak); }
.main-nav .nav-link:hover { color: var(--primary); background: var(--bg); }
.main-nav .nav-link.active { color: #fff; background: var(--primary); font-weight: 600; box-shadow: 0 4px 12px rgba(10,31,60,.25); }
.nav-tools { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.command-search { display: flex; align-items: center; gap: 8px; background: var(--bg); border: 1px solid var(--border); border-radius: 40px; padding: 0 16px; height: 42px; width: 230px; transition: border-color var(--transition), box-shadow var(--transition), background var(--transition); }
.command-search .fa-search { color: var(--text-light); font-size: 14px; }
.command-search input { flex: 1; min-width: 0; border: none; background: transparent; outline: none; font-size: 14px; color: var(--text); }
.command-search input::placeholder { color: var(--text-light); }
.search-kbd { font-size: 12px; color: var(--text-light); background: #fff; border: 1px solid var(--border); border-radius: 6px; padding: 2px 6px; line-height: 1.2; }
.command-search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(255,107,53,.12); background: #fff; }
.nav-cta { box-shadow: 0 4px 14px rgba(255,107,53,.3); }
.menu-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--border); background: #fff; color: var(--primary); font-size: 17px; align-items: center; justify-content: center; }

.category-hero { position: relative; background: linear-gradient(100deg, rgba(7,21,39,.97) 0%, rgba(10,31,60,.92) 55%, rgba(21,58,102,.76) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat; color: #fff; padding: 76px 0 84px; overflow: hidden; }
.category-hero::after { content: ''; position: absolute; right: -80px; top: -80px; width: 340px; height: 340px; border-radius: 50%; background: rgba(255,107,53,.18); filter: blur(60px); pointer-events: none; }
.category-hero .container { position: relative; z-index: 2; }
.hero-breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,.7); margin-bottom: 24px; }
.hero-breadcrumb a:hover { color: #fff; }
.hero-breadcrumb i { font-size: 10px; color: rgba(255,255,255,.5); }
.hero-title { font-size: 46px; line-height: 1.2; font-weight: 800; margin-bottom: 18px; letter-spacing: .02em; }
.hero-title span { color: var(--accent); }
.hero-sub { max-width: 660px; font-size: 16.5px; line-height: 1.85; color: rgba(255,255,255,.85); margin-bottom: 42px; }
.hero-stats { display: flex; gap: 48px; flex-wrap: wrap; }
.hero-stat-num { font-size: 30px; font-weight: 800; color: #fff; line-height: 1.1; }
.hero-stat-num small { font-size: 15px; color: rgba(255,255,255,.65); font-weight: 500; }
.hero-stat-label { margin-top: 6px; font-size: 13px; color: rgba(255,255,255,.6); letter-spacing: .5px; }

.feature-layout { display: grid; grid-template-columns: 1.15fr 1fr; gap: 24px; margin-bottom: 24px; }
.feature-stack { display: grid; grid-template-columns: 1fr; gap: 24px; }
.feature-subgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); transition: transform var(--transition), box-shadow var(--transition); display: flex; flex-direction: column; }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.feature-card .card-cover { position: relative; overflow: hidden; background: #dfe5ed; height: 230px; flex-shrink: 0; }
.feature-stack .feature-card .card-cover { height: 210px; }
.feature-subgrid .feature-card .card-cover { height: 200px; }
.feature-card-main .card-cover { flex: 1; height: auto; min-height: 430px; }
.card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.feature-card:hover .card-cover img { transform: scale(1.05); }
.card-cover::after { content: ''; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(7,21,39,.45), transparent 55%); pointer-events: none; }
.card-tag { position: absolute; left: 16px; top: 16px; z-index: 2; padding: 5px 14px; border-radius: 30px; font-size: 12px; font-weight: 600; background: rgba(255,107,53,.95); color: #fff; box-shadow: 0 4px 10px rgba(0,0,0,.15); }
.card-body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.card-title { font-size: 17px; font-weight: 700; line-height: 1.5; color: var(--text); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color var(--transition); }
.feature-card:hover .card-title { color: var(--accent-deep); }
.feature-card-main .card-title { font-size: 22px; }
.card-excerpt { margin-top: 10px; color: var(--text-weak); font-size: 14px; line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.feature-card-main .card-excerpt { -webkit-line-clamp: 3; }
.card-meta { margin-top: 14px; display: flex; align-items: center; gap: 18px; font-size: 13px; color: var(--text-light); }
.card-meta i { margin-right: 6px; }

.news-layout .sidebar-panel { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow); margin-bottom: 24px; }
.news-panel { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 12px 26px; box-shadow: var(--shadow); }
.news-item { display: flex; gap: 18px; padding: 22px 0; border-bottom: 1px dashed var(--border); align-items: center; }
.news-item:last-child { border-bottom: none; padding-bottom: 16px; }
.news-thumb { width: 132px; height: 88px; border-radius: 12px; overflow: hidden; flex-shrink: 0; background: #dfe5ed; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.news-item:hover .news-thumb img { transform: scale(1.06); }
.news-content { flex: 1; min-width: 0; }
.news-tag-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.news-tag { font-size: 12px; padding: 3px 11px; border-radius: 30px; background: rgba(10,31,60,.08); color: var(--primary-light); font-weight: 600; }
.news-tag.accent { background: rgba(255,107,53,.1); color: var(--accent-deep); }
.news-title { font-size: 16px; font-weight: 600; line-height: 1.55; margin-top: 7px; transition: color var(--transition); }
.news-title:hover { color: var(--accent-deep); }
.news-meta { margin-top: 9px; font-size: 13px; color: var(--text-light); display: flex; gap: 16px; flex-wrap: wrap; }
.news-meta i { margin-right: 5px; }
.widget-title { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.widget-title::before { content: ''; width: 4px; height: 20px; border-radius: 4px; background: var(--accent); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-item { padding: 7px 15px; border-radius: 30px; background: var(--bg); color: var(--text-weak); font-size: 13px; border: 1px solid var(--border); transition: all var(--transition); }
.tag-item:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }
.topic-item { display: flex; align-items: center; gap: 14px; padding: 14px 0; border-bottom: 1px dashed var(--border); }
.topic-item:last-child { border: none; padding-bottom: 0; }
.topic-icon { width: 38px; height: 38px; border-radius: 12px; background: rgba(255,107,53,.12); color: var(--accent-deep); display: flex; align-items: center; justify-content: center; font-size: 15px; flex-shrink: 0; }
.topic-item .topic-info a { font-size: 14px; font-weight: 600; line-height: 1.5; }
.topic-item .topic-info a:hover { color: var(--accent-deep); }
.topic-item .topic-info span { display: block; font-size: 12px; color: var(--text-light); margin-top: 4px; }

.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cat-card { position: relative; background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 30px 28px; overflow: hidden; transition: all var(--transition); }
.cat-card::after { content: ''; position: absolute; right: -30px; bottom: -30px; width: 120px; height: 120px; border-radius: 50%; background: rgba(10,31,60,.04); transition: all var(--transition); pointer-events: none; }
.cat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: rgba(255,107,53,.4); }
.cat-card:hover::after { background: rgba(255,107,53,.08); transform: scale(1.2); }
.cat-icon { width: 56px; height: 56px; border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 22px; color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-light)); box-shadow: 0 6px 16px rgba(10,31,60,.25); margin-bottom: 20px; position: relative; z-index: 1; }
.cat-card:nth-child(2) .cat-icon { background: linear-gradient(135deg, var(--accent), #ff9f43); box-shadow: 0 6px 16px rgba(255,107,53,.3); }
.cat-card:nth-child(3) .cat-icon { background: linear-gradient(135deg, #0fa968, #16c784); box-shadow: 0 6px 16px rgba(15,169,104,.3); }
.cat-card:nth-child(4) .cat-icon { background: linear-gradient(135deg, #4361ee, #4895ef); box-shadow: 0 6px 16px rgba(67,97,238,.3); }
.cat-card:nth-child(5) .cat-icon { background: linear-gradient(135deg, #f77f00, #fcbf49); box-shadow: 0 6px 16px rgba(247,127,0,.3); }
.cat-card:nth-child(6) .cat-icon { background: linear-gradient(135deg, #9d4edd, #c77dff); box-shadow: 0 6px 16px rgba(157,78,221,.3); }
.cat-name { font-size: 19px; font-weight: 700; color: var(--text); position: relative; z-index: 1; }
.cat-desc { margin-top: 8px; font-size: 14px; color: var(--text-weak); line-height: 1.7; position: relative; z-index: 1; }
.cat-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; font-size: 14px; font-weight: 600; color: var(--primary-light); position: relative; z-index: 1; }
.cat-link i { transition: transform var(--transition); }
.cat-card:hover .cat-link { color: var(--accent-deep); }
.cat-card:hover .cat-link i { transform: translateX(4px); }

.rank-panel { max-width: 920px; margin: 0 auto; background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 40px 44px; box-shadow: var(--shadow); }
.rank-item { display: flex; align-items: center; gap: 20px; padding: 17px 0; border-bottom: 1px dashed var(--border); }
.rank-item:last-child { border-bottom: none; padding-bottom: 0; }
.rank-num { width: 36px; height: 36px; border-radius: 10px; background: var(--bg); color: var(--primary-light); font-weight: 700; display: flex; align-items: center; justify-content: center; font-size: 15px; flex-shrink: 0; }
.rank-item:nth-child(1) .rank-num { background: linear-gradient(135deg, var(--accent), #ff9f43); color: #fff; box-shadow: 0 4px 10px rgba(255,107,53,.35); }
.rank-item:nth-child(2) .rank-num { background: linear-gradient(135deg, #4361ee, #4895ef); color: #fff; }
.rank-item:nth-child(3) .rank-num { background: linear-gradient(135deg, #0fa968, #16c784); color: #fff; }
.rank-name { flex: 0 0 190px; font-weight: 600; font-size: 15px; }
.rank-bar { flex: 1; height: 10px; border-radius: 20px; background: var(--bg-alt); overflow: hidden; }
.rank-fill { height: 100%; width: 0; border-radius: 20px; background: linear-gradient(90deg, var(--primary), var(--accent)); transition: width 1s ease; }
.rank-value { flex: 0 0 54px; text-align: right; font-weight: 800; color: var(--primary); font-size: 18px; }

.schedule-list { max-width: 880px; margin: 0 auto; }
.schedule-item { display: flex; align-items: center; gap: 24px; background: var(--card-bg); border: 1px solid var(--border); border-left: 4px solid var(--accent); border-radius: 14px; padding: 22px 28px; margin-bottom: 16px; box-shadow: var(--shadow); transition: transform var(--transition); }
.schedule-item:hover { transform: translateX(6px); }
.sc-date { flex: 0 0 110px; text-align: center; border-right: 1px dashed var(--border); padding-right: 20px; }
.sc-day { font-size: 27px; font-weight: 800; color: var(--primary); line-height: 1.1; }
.sc-month { font-size: 13px; color: var(--text-weak); margin-top: 4px; }
.sc-info { flex: 1; min-width: 0; }
.sc-name { font-size: 17px; font-weight: 700; color: var(--text); }
.sc-league { font-size: 13px; color: var(--text-weak); margin-top: 5px; }
.sc-status { flex-shrink: 0; padding: 6px 16px; border-radius: 30px; font-size: 12px; font-weight: 600; background: rgba(15,169,104,.1); color: var(--success); }
.sc-status.warn { background: rgba(255,107,53,.1); color: var(--accent-deep); }

.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item { background: var(--card-bg); border: 1px solid var(--border); border-radius: 14px; margin-bottom: 14px; overflow: hidden; box-shadow: 0 2px 10px rgba(10,31,60,.04); transition: border-color var(--transition), box-shadow var(--transition); }
.faq-item.is-active { border-color: rgba(255,107,53,.45); box-shadow: 0 8px 24px rgba(255,107,53,.12); }
.faq-q { padding: 22px 26px; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-size: 16px; font-weight: 600; color: var(--text); gap: 16px; }
.faq-q:hover { color: var(--accent-deep); }
.faq-q i { color: var(--text-light); transition: transform var(--transition); font-size: 14px; flex-shrink: 0; }
.faq-item.is-active .faq-q i { transform: rotate(45deg); color: var(--accent); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .3s ease; padding: 0 26px; color: var(--text-weak); font-size: 15px; line-height: 1.85; }
.faq-item.is-active .faq-a { max-height: 300px; padding: 0 26px 22px; }

.cta-panel { position: relative; background: linear-gradient(120deg, var(--primary-deep), var(--primary-light) 60%, #1d4d7c); border-radius: var(--radius-lg); padding: 58px 56px; text-align: center; color: #fff; overflow: hidden; }
.cta-panel::before { content: ''; position: absolute; width: 260px; height: 260px; border-radius: 50%; background: rgba(255,107,53,.2); filter: blur(50px); top: -80px; right: -40px; pointer-events: none; }
.cta-panel::after { content: ''; position: absolute; width: 200px; height: 200px; border-radius: 50%; background: rgba(255,255,255,.06); bottom: -80px; left: -40px; pointer-events: none; }
.cta-panel .cta-inner { position: relative; z-index: 2; }
.cta-title { font-size: 30px; font-weight: 800; }
.cta-sub { margin-top: 14px; color: rgba(255,255,255,.8); font-size: 15px; line-height: 1.7; }
.cta-form { margin-top: 30px; display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.cta-form input[type="email"] { width: 380px; height: 52px; border-radius: 50px; border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.12); color: #fff; padding: 0 24px; outline: none; transition: all var(--transition); }
.cta-form input[type="email"]::placeholder { color: rgba(255,255,255,.6); }
.cta-form input[type="email"]:focus { background: rgba(255,255,255,.2); border-color: var(--accent); box-shadow: 0 0 0 4px rgba(255,107,53,.2); }
.cta-note { margin-top: 16px; font-size: 12px; color: rgba(255,255,255,.5); position: relative; z-index: 2; }
.cta-success { margin-top: 24px; display: inline-flex; align-items: center; gap: 10px; background: rgba(15,169,104,.18); border: 1px solid rgba(15,169,104,.5); border-radius: 50px; padding: 12px 24px; font-size: 15px; font-weight: 600; color: #7be3b8; position: relative; z-index: 2; }

.site-footer { background: var(--primary-deep); color: rgba(255,255,255,.78); padding: 68px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1.2fr; gap: 48px; padding-bottom: 44px; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer-logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 18px; }
.footer-desc { font-size: 14.5px; line-height: 1.85; color: rgba(255,255,255,.55); max-width: 340px; }
.footer-social { display: flex; gap: 12px; margin-top: 24px; }
.footer-social a { width: 42px; height: 42px; border-radius: 12px; background: rgba(255,255,255,.08); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,.7); font-size: 16px; transition: all var(--transition); }
.footer-social a:hover { background: var(--accent); color: #fff; transform: translateY(-3px); }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 22px; }
.footer-links li, .footer-contact li { margin-bottom: 13px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,.6); transition: color var(--transition), padding-left var(--transition); }
.footer-links a i { font-size: 10px; margin-right: 7px; color: var(--accent); }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact li { display: flex; gap: 12px; font-size: 14px; color: rgba(255,255,255,.6); align-items: flex-start; }
.footer-contact i { color: var(--accent); margin-top: 5px; width: 14px; }
.footer-bottom { padding: 22px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,.35); }

@media (max-width: 1100px) {
    .command-search { width: 180px; }
    .nav-cta { display: none; }
}
@media (max-width: 1024px) {
    :root { --space: 76px; }
    .feature-layout { grid-template-columns: 1fr; }
    .feature-card-main .card-cover { min-height: 320px; }
    .feature-stack { grid-template-columns: 1fr 1fr; }
    .cat-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .news-layout .grid-margin-x { margin-left: auto; margin-right: auto; }
}
@media (max-width: 900px) {
    .menu-toggle { display: flex; }
    .main-nav { position: fixed; top: var(--header-h); left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 16px 20px; gap: 8px; box-shadow: 0 24px 48px rgba(10,31,60,.18); transform: translateY(-16px); opacity: 0; visibility: hidden; transition: all .3s ease; border-bottom: 1px solid var(--border); z-index: 998; }
    .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
    .main-nav .nav-link { padding: 13px 16px; border-radius: 12px; font-size: 15px; }
    .command-search { display: none; }
    .nav-tools { gap: 10px; }
}
@media (max-width: 768px) {
    :root { --space: 60px; --header-h: 68px; }
    .hero-title { font-size: 34px; }
    .hero-sub { font-size: 15px; }
    .hero-stats { gap: 28px; }
    .hero-stat-num { font-size: 24px; }
    .section-title { font-size: 27px; }
    .feature-stack { grid-template-columns: 1fr; }
    .feature-subgrid { grid-template-columns: 1fr 1fr; }
    .feature-card .card-cover, .feature-stack .feature-card .card-cover, .feature-subgrid .feature-card .card-cover { height: 210px; }
    .schedule-item { flex-wrap: wrap; gap: 14px; padding: 20px 22px; }
    .sc-date { flex: 0 0 90px; }
    .cta-panel { padding: 44px 28px; }
    .cta-form { flex-direction: column; align-items: center; }
    .cta-form input[type="email"] { width: 100%; max-width: 400px; }
    .footer-grid { gap: 36px; }
    .rank-panel { padding: 28px 24px; }
    .rank-name { flex-basis: 140px; }
}
@media (max-width: 520px) {
    .container { padding: 0 18px; }
    :root { --space: 52px; }
    .brand-logo { font-size: 18px; }
    .logo-icon { width: 34px; height: 34px; font-size: 14px; }
    .feature-subgrid { grid-template-columns: 1fr; }
    .cat-grid { grid-template-columns: 1fr; }
    .news-item { flex-direction: column; align-items: flex-start; }
    .news-thumb { width: 100%; height: 180px; }
    .rank-item { flex-wrap: wrap; gap: 12px; }
    .rank-name { flex-basis: 100%; }
    .rank-value { flex-basis: auto; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-breadcrumb { font-size: 13px; }
    .hero-title { font-size: 29px; }
    .btn-lg { padding: 13px 28px; font-size: 15px; }
}

/* roulang page: category3 */
:root{
  --primary:#e63946;
  --primary-dark:#c12230;
  --primary-light:#ff6b6b;
  --secondary:#2ec4b6;
  --secondary-dark:#1a8a7e;
  --accent:#f4a261;
  --dark:#1d2634;
  --dark-2:#2d3748;
  --dark-3:#4a5568;
  --light:#f7fafc;
  --white:#ffffff;
  --gray-50:#f8f9fa;
  --gray-100:#f1f3f5;
  --gray-200:#e9ecef;
  --gray-300:#dee2e6;
  --gray-400:#ced4da;
  --gray-500:#adb5bd;
  --gray-600:#6c757d;
  --gray-700:#495057;
  --text:#2d3748;
  --text-light:#718096;
  --border:#edf2f7;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:22px;
  --radius-xl:30px;
  --shadow-sm:0 2px 10px rgba(0,0,0,.05);
  --shadow-md:0 6px 25px rgba(0,0,0,.08);
  --shadow-lg:0 16px 45px rgba(0,0,0,.12);
  --shadow-primary:0 8px 30px rgba(230,57,70,.25);
  --shadow-secondary:0 8px 30px rgba(46,196,180,.22);
  --transition:all .3s cubic-bezier(.4,0,.2,1);
  --font-body:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-display:"PingFang SC","Microsoft YaHei","Inter",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);color:var(--text);background:var(--white);line-height:1.7;font-size:16px;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
button{font-family:inherit;border:none;cursor:pointer;transition:var(--transition)}
input,textarea{font-family:inherit}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section-header{text-align:center;margin-bottom:56px}
.section-header .section-tag{display:inline-block;background:rgba(230,57,70,.08);color:var(--primary);font-size:13px;font-weight:700;letter-spacing:2px;padding:6px 18px;border-radius:30px;text-transform:uppercase;margin-bottom:14px}
.section-header h2{font-size:36px;font-weight:800;color:var(--dark);font-family:var(--font-display);letter-spacing:-1px;line-height:1.3;margin-bottom:12px}
.section-header p{color:var(--text-light);font-size:16px;max-width:640px;margin:0 auto}
.section-header.light h2{color:var(--white)}
.section-header.light p{color:rgba(255,255,255,.75)}

/*= header =*/
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);box-shadow:0 2px 12px rgba(0,0,0,.04)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-logo{width:38px;height:38px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--white);font-size:18px;box-shadow:var(--shadow-primary)}
.brand-name{font-size:20px;font-weight:800;color:var(--dark);font-family:var(--font-display);letter-spacing:-.5px}
.brand-name .brand-accent{color:var(--primary)}
.main-nav{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
.main-nav .nav-link{display:flex;align-items:center;gap:6px;padding:8px 16px;border-radius:24px;color:var(--gray-700);font-size:14.5px;font-weight:600;position:relative;transition:var(--transition)}
.main-nav .nav-link i{font-size:13px;opacity:.7}
.main-nav .nav-link:hover{color:var(--primary);background:rgba(230,57,70,.05)}
.main-nav .nav-link.active{color:var(--primary);background:rgba(230,57,70,.08)}
.main-nav .nav-link.active::after{content:"";position:absolute;bottom:2px;left:50%;transform:translateX(-50%);width:20px;height:3px;background:var(--primary);border-radius:4px}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-box{position:relative;display:flex;align-items:center}
.search-box input{width:180px;height:38px;border-radius:30px;border:1.5px solid var(--gray-200);background:var(--gray-50);padding:0 14px 0 38px;font-size:13px;color:var(--text);outline:none;transition:var(--transition)}
.search-box input:focus{width:220px;border-color:var(--primary);background:var(--white);box-shadow:0 0 0 4px rgba(230,57,70,.08)}
.search-box i{position:absolute;left:14px;color:var(--gray-500);font-size:13px;pointer-events:none}
.header-cta{display:inline-flex;align-items:center;gap:6px;background:var(--primary);color:var(--white) !important;padding:9px 20px;border-radius:30px;font-size:14px;font-weight:700;white-space:nowrap;box-shadow:var(--shadow-primary)}
.header-cta:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 32px rgba(230,57,70,.32)}
.nav-toggle{display:none;background:none;font-size:22px;color:var(--dark);padding:6px;border-radius:6px}
.nav-toggle:hover{background:var(--gray-100)}

/*= hero banner =*/
.page-hero{position:relative;padding:110px 0 120px;background:linear-gradient(120deg,var(--dark) 0%,var(--dark-2) 55%,rgba(230,57,70,.4) 100%);overflow:hidden;text-align:center}
.page-hero .hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.25;z-index:1}
.page-hero .hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,var(--dark) 0%,rgba(29,38,52,.7) 55%,rgba(29,38,52,.6) 100%)}
.page-hero .container{position:relative;z-index:3}
.page-hero .hero-tag{display:inline-block;background:rgba(230,57,70,.88);color:var(--white);font-size:13px;font-weight:700;letter-spacing:2px;padding:7px 22px;border-radius:30px;margin-bottom:20px;box-shadow:var(--shadow-primary)}
.page-hero h1{font-size:48px;font-weight:800;color:var(--white);font-family:var(--font-display);line-height:1.2;letter-spacing:-2px;margin-bottom:18px}
.page-hero h1 span{color:var(--primary-light)}
.page-hero p.hero-desc{font-size:17px;color:rgba(255,255,255,.82);max-width:700px;margin:0 auto 36px;line-height:1.8}
.page-hero .hero-meta{display:flex;justify-content:center;gap:32px;flex-wrap:wrap}
.page-hero .hero-meta-item{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.88);font-size:14.5px}
.page-hero .hero-meta-item i{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;color:var(--primary-light);font-size:15px}
.hero-wave{position:absolute;bottom:-2px;left:0;right:0;z-index:2}
.hero-wave svg{display:block;width:100%;height:60px}

.breadcrumbs{background:var(--gray-50);border-bottom:1px solid var(--border);padding:13px 0}
.breadcrumbs .container{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-light)}
.breadcrumbs a{color:var(--gray-600)}
.breadcrumbs a:hover{color:var(--primary)}
.breadcrumbs i{font-size:11px;color:var(--gray-400)}

/*= section spacing =*/
.section-padding{padding:100px 0}
.section-padding-sm{padding:70px 0}
.bg-light{background:var(--gray-50)}
.bg-dark-section{background:var(--dark);position:relative;overflow:hidden}
.bg-dark-section::before{content:"";position:absolute;top:-100px;right:-100px;width:400px;height:400px;background:radial-gradient(circle,rgba(230,57,70,.15),transparent 70%)}
.bg-dark-section::after{content:"";position:absolute;bottom:-80px;left:-80px;width:350px;height:350px;background:radial-gradient(circle,rgba(46,196,180,.12),transparent 70%)}
.bg-dark-section .container{position:relative;z-index:2}

/*= course cards =*/
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-bottom:48px}
.course-card{background:var(--white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--border);transition:var(--transition);display:flex;flex-direction:column}
.course-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(230,57,70,.2)}
.course-card .card-cover{position:relative;height:210px;overflow:hidden}
.course-card .card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.course-card:hover .card-cover img{transform:scale(1.06)}
.course-card .card-cover .card-tag{position:absolute;top:14px;left:14px;background:rgba(29,38,52,.8);backdrop-filter:blur(6px);color:var(--white);font-size:12px;font-weight:600;padding:5px 13px;border-radius:20px;display:flex;align-items:center;gap:5px}
.course-card .card-cover .card-level{position:absolute;bottom:14px;right:14px;background:rgba(255,255,255,.92);color:var(--dark);font-size:12px;font-weight:700;padding:4px 12px;border-radius:16px}
.course-card .card-body{padding:24px;display:flex;flex-direction:column;flex:1}
.course-card .card-body h3{font-size:18px;font-weight:700;color:var(--dark);margin-bottom:10px;line-height:1.45}
.course-card .card-body p{font-size:14px;color:var(--text-light);line-height:1.7;flex:1}
.course-card .card-meta{display:flex;justify-content:space-between;align-items:center;margin-top:16px;padding-top:16px;border-top:1px solid var(--gray-100)}
.course-card .card-meta .meta-item{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--gray-600)}
.course-card .card-meta .meta-item i{color:var(--primary);font-size:12px}
.course-card .card-link{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--primary);margin-top:16px;position:relative}
.course-card .card-link:hover{gap:11px}

/*= featured block =*/
.featured-block{display:grid;grid-template-columns:1fr 1fr;background:var(--white);border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--border)}
.featured-block .featured-img{position:relative;min-height:340px;overflow:hidden}
.featured-block .featured-img img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.featured-block .featured-img .featured-badge{position:absolute;top:20px;left:20px;background:rgba(230,57,70,.92);color:var(--white);font-size:13px;font-weight:700;padding:7px 18px;border-radius:24px;z-index:2}
.featured-block .featured-body{padding:45px 40px;display:flex;flex-direction:column;justify-content:center}
.featured-block .featured-body h3{font-size:26px;font-weight:800;color:var(--dark);font-family:var(--font-display);line-height:1.35;margin-bottom:14px}
.featured-block .featured-body p{color:var(--text-light);font-size:15px;line-height:1.8;margin-bottom:20px}
.featured-block .featured-list{margin-bottom:24px}
.featured-block .featured-list li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--gray-700);padding:6px 0}
.featured-block .featured-list li i{color:var(--secondary);font-size:13px}
.featured-block .btn{align-self:flex-start}

/*= method steps =*/
.method-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.method-card{text-align:center;padding:36px 24px;background:var(--white);border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:var(--transition);position:relative}
.method-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.method-card .step-num{position:absolute;top:18px;right:22px;font-size:48px;font-weight:800;color:rgba(230,57,70,.07);font-family:var(--font-display)}
.method-card .method-icon{width:74px;height:74px;margin:0 auto 18px;background:linear-gradient(135deg,rgba(230,57,70,.1),rgba(46,196,180,.1));border-radius:24px;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:28px;transform:rotate(-6deg);transition:var(--transition)}
.method-card:hover .method-icon{transform:rotate(0deg) scale(1.05)}
.method-card h3{font-size:17px;font-weight:700;color:var(--dark);margin-bottom:8px}
.method-card p{font-size:13.5px;color:var(--text-light);line-height:1.65}

/*= stats =*/
.stats-section{padding:70px 0;background:linear-gradient(120deg,var(--dark) 0%,var(--dark-2) 100%);position:relative;overflow:hidden}
.stats-section::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(to right,transparent,rgba(255,255,255,.25),transparent)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.stat-item{text-align:center;padding:24px 16px}
.stat-item .stat-num{font-size:44px;font-weight:800;color:var(--primary-light);font-family:var(--font-display);line-height:1.2;letter-spacing:-2px}
.stat-item .stat-label{font-size:14px;color:rgba(255,255,255,.7);margin-top:8px}

/*= plan cards =*/
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.plan-card{background:var(--white);border-radius:var(--radius-lg);padding:34px 30px;box-shadow:var(--shadow-sm);border:1px solid var(--border);transition:var(--transition);position:relative;overflow:hidden}
.plan-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gray-100)}
.plan-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.plan-card.featured{border-color:var(--primary)}
.plan-card.featured::before{background:linear-gradient(to right,var(--primary),var(--primary-light))}
.plan-card .plan-tag{display:inline-block;background:rgba(230,57,70,.08);color:var(--primary);font-size:12.5px;font-weight:700;padding:5px 14px;border-radius:20px;margin-bottom:16px}
.plan-card h3{font-size:19px;font-weight:700;color:var(--dark);margin-bottom:8px}
.plan-card .plan-desc{font-size:14px;color:var(--text-light);margin-bottom:18px}
.plan-duration{display:flex;align-items:baseline;gap:4px;margin-bottom:20px;padding:14px 0;border-top:1px dashed var(--gray-200);border-bottom:1px dashed var(--gray-200)}
.plan-duration strong{font-size:38px;font-weight:800;color:var(--primary);font-family:var(--font-display)}
.plan-duration span{font-size:14px;color:var(--gray-600);margin-left:4px}
.plan-duration small{font-size:12px;color:var(--gray-400);margin-left:8px}
.plan-list{margin-bottom:24px}
.plan-list li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--gray-700);padding:6px 0}
.plan-list li i{color:var(--secondary);font-size:13px}
.plan-list li.not-include{color:var(--gray-400)}
.plan-list li.not-include i{color:var(--gray-300)}
.plan-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:12px 18px;border-radius:30px;font-size:15px;font-weight:700;background:var(--gray-100);color:var(--dark);transition:var(--transition)}
.plan-btn:hover{background:var(--primary);color:var(--white);box-shadow:var(--shadow-primary)}
.plan-btn.featured-btn{background:var(--primary);color:var(--white);box-shadow:var(--shadow-primary)}
.plan-btn.featured-btn:hover{background:var(--primary-dark)}

/*= video/feature list =*/
.fitness-features{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.fitness-features .feature-visual{position:relative;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-lg)}
.fitness-features .feature-visual img{width:100%;height:460px;object-fit:cover}
.fitness-features .feature-visual .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:74px;height:74px;background:rgba(255,255,255,.95);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:24px;box-shadow:0 8px 30px rgba(0,0,0,.25);transition:var(--transition)}
.fitness-features .feature-visual .play-btn:hover{transform:translate(-50%,-50%) scale(1.08)}
.fitness-features .feature-list-box h3{font-size:26px;font-weight:800;color:var(--dark);font-family:var(--font-display);line-height:1.35;margin-bottom:18px}
.fitness-features .feature-list-box .feature-list-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--gray-100)}
.fitness-features .feature-list-box .feature-list-item:last-child{border-bottom:none}
.feature-list-item .feature-icon{width:40px;height:40px;background:rgba(46,196,180,.1);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--secondary);font-size:15px;flex-shrink:0;margin-top:3px}
.feature-list-item h4{font-size:15.5px;font-weight:700;color:var(--dark);margin-bottom:4px}
.feature-list-item p{font-size:13.5px;color:var(--text-light);line-height:1.6}

/*= faq =*/
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:rgba(230,57,70,.3);box-shadow:var(--shadow-sm)}
.faq-item.active{border-color:rgba(230,57,70,.4);box-shadow:var(--shadow-md)}
.faq-question{display:flex;align-items:center;gap:14px;padding:18px 22px;cursor:pointer;font-size:15.5px;font-weight:600;color:var(--dark);user-select:none;transition:var(--transition)}
.faq-question:hover{color:var(--primary)}
.faq-question .faq-icon{width:32px;height:32px;border-radius:50%;background:var(--gray-100);display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--gray-500);transition:var(--transition);flex-shrink:0;line-height:1}
.faq-item.active .faq-question{color:var(--primary)}
.faq-item.active .faq-icon{background:rgba(230,57,70,.08);color:var(--primary);transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .3s ease;padding:0 22px;font-size:14.5px;color:var(--text-light);line-height:1.8;border-top:0px solid transparent}
.faq-item.active .faq-answer{max-height:500px;padding:0 22px 20px;border-top:1px solid var(--gray-100);padding-top:14px}

/*= cta =*/
.cta-section{padding:90px 0;background:linear-gradient(120deg,var(--primary),var(--primary-dark) 70%,var(--primary-light));position:relative;overflow:hidden}
.cta-section::before{content:"";position:absolute;top:-60px;right:-60px;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.08)}
.cta-section::after{content:"";position:absolute;bottom:-80px;left:-40px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.06)}
.cta-section .container{position:relative;z-index:2;text-align:center}
.cta-section h2{font-size:34px;font-weight:800;color:var(--white);font-family:var(--font-display);letter-spacing:-1px;margin-bottom:14px}
.cta-section p{font-size:16px;color:rgba(255,255,255,.85);max-width:560px;margin:0 auto 30px}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.cta-btn{display:inline-flex;align-items:center;gap:9px;padding:14px 32px;border-radius:30px;font-size:15.5px;font-weight:700;transition:var(--transition)}
.cta-btn-light{background:var(--white);color:var(--primary);box-shadow:0 8px 28px rgba(0,0,0,.16)}
.cta-btn-light:hover{transform:translateY(-3px);box-shadow:0 12px 34px rgba(0,0,0,.22)}
.cta-btn-ghost{background:transparent;color:var(--white);border:2px solid rgba(255,255,255,.6)}
.cta-btn-ghost:hover{background:rgba(255,255,255,.12);border-color:var(--white);transform:translateY(-3px)}

/*= footer =*/
.site-footer{background:var(--dark);color:rgba(255,255,255,.75);padding-top:70px}
.footer-grid{display:grid;grid-template-columns:2fr 1.4fr 1.4fr;gap:50px;padding-bottom:46px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand-col .footer-logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:var(--white);font-family:var(--font-display);margin-bottom:16px}
.footer-brand-col .footer-logo .logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--white)}
.footer-brand-col .footer-logo .logo-accent{color:var(--primary-light)}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.55);margin-bottom:22px;max-width:320px}
.footer-social{display:flex;gap:10px}
.footer-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);font-size:15px;transition:var(--transition)}
.footer-social a:hover{background:var(--primary);color:var(--white);transform:translateY(-3px)}
.footer-col h4{font-size:15px;font-weight:700;color:var(--white);margin-bottom:18px;letter-spacing:.5px}
.footer-links li,.footer-contact li{margin-bottom:10px}
.footer-links a,.footer-contact{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.55);transition:var(--transition)}
.footer-links a:hover{color:var(--primary-light);transform:translateX(4px)}
.footer-links a i{font-size:10px;color:var(--primary)}
.footer-contact li{color:rgba(255,255,255,.55)}
.footer-contact li i{width:30px;height:30px;border-radius:8px;background:rgba(255,255,255,.06);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--primary-light)}
.footer-bottom{padding:22px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.4)}

/*= buttons =*/
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 26px;border-radius:30px;font-size:15px;font-weight:600;transition:var(--transition);border:none;cursor:pointer}
.btn-primary{background:var(--primary);color:var(--white);box-shadow:var(--shadow-primary)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 32px rgba(230,57,70,.32)}
.btn-outline{border:2px solid var(--gray-300);color:var(--dark)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-light{background:var(--white);color:var(--dark)}
.btn-light:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}

/*= responsive =*/
@media screen and (max-width:1024px){
  .course-grid{grid-template-columns:repeat(2,1fr)}
  .method-steps{grid-template-columns:repeat(2,1fr)}
  .plan-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .featured-block{grid-template-columns:1fr}
  .featured-block .featured-img{min-height:280px}
  .fitness-features{grid-template-columns:1fr;gap:30px}
  .main-nav{position:fixed;top:0;right:-320px;width:280px;height:100vh;background:var(--white);flex-direction:column;align-items:flex-start;padding:90px 30px 30px;box-shadow:-8px 0 30px rgba(0,0,0,.1);transition:right .4s ease;z-index:999}
  .main-nav.open{right:0}
  .main-nav .nav-link{width:100%;padding:13px 18px}
  .nav-toggle{display:block}
  .search-box input{width:140px}
  .search-box input:focus{width:170px}
  .site-header .container{height:62px}
  .header-cta{display:none}
}
@media screen and (max-width:768px){
  .section-padding{padding:68px 0}
  .section-header h2{font-size:28px}
  .page-hero{padding:80px 0 90px}
  .page-hero h1{font-size:36px}
  .page-hero p.hero-desc{font-size:15px}
  .page-hero .hero-meta{flex-direction:column;align-items:center;gap:12px}
  .course-grid{grid-template-columns:1fr}
  .method-steps{grid-template-columns:1fr 1fr}
  .plan-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:2}  
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid .stat-item{padding:12px}
  .stat-item .stat-num{font-size:34px}
  .featured-block .featured-body{padding:32px 24px}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .footer-bottom{font-size:12px}
  .cta-section h2{font-size:27px}
  .faq-question{font-size:14.5px;padding:16px 16px}
  .faq-answer{padding:0 16px;font-size:13.5px}
  .faq-item.active .faq-answer{padding:0 16px 16px;padding-top:12px}
}
@media screen and (max-width:520px){
  .container{padding:0 18px}
  .site-header .container{padding:0 16px}
  .brand-name{font-size:17px}
  .search-box input{width:55px;padding:0 12px 0 30px}
  .search-box input:focus{width:120px}
  .search-box i{left:10px}
  .page-hero h1{font-size:29px}
  .page-hero p.hero-desc{font-size:14px}
  .section-header h2{font-size:24px}
  .section-header .section-tag{font-size:12px}
  .method-steps{grid-template-columns:1fr}
  .plan-grid,.course-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .cta-actions{flex-direction:column;align-items:center}
  .cta-btn{width:100%;justify-content:center}
  .featured-block .featured-body{padding:28px 18px}
  .featured-block .featured-body h3{font-size:22px}
  .footer-bottom{font-size:11.5px}
}