/* roulang page: index */
:root {
            --primary: #0E6E75;
            --primary-dark: #0A5A60;
            --primary-light: #E6F4F5;
            --accent: #FF7547;
            --accent-dark: #E85D30;
            --bg: #F4F8FA;
            --card-bg: #FFFFFF;
            --text: #16282E;
            --text-secondary: #5C7178;
            --border: #E3EBEE;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-tag: 6px;
            --shadow-card: 0 4px 16px rgba(14, 45, 55, .06);
            --shadow-hover: 0 12px 28px rgba(14, 45, 55, .12);
            --transition: all .25s ease;
            --sidebar-width: 236px;
            --font-main: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        img {
            max-width: 100%;
            display: block;
            object-fit: cover;
        }

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

        [id] {
            scroll-margin-top: 80px;
        }

        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .sidebar-nav {
            width: var(--sidebar-width);
            min-width: var(--sidebar-width);
            background: var(--card-bg);
            border-right: 1px solid var(--border);
            position: sticky;
            top: 0;
            height: 100vh;
            display: flex;
            flex-direction: column;
            padding: 28px 20px;
            z-index: 1020;
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--border);
        }

        .brand-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 9px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
            letter-spacing: .01em;
        }

        .sidebar-menu {
            display: flex;
            flex-direction: column;
            gap: 4px;
            margin-top: 24px;
            flex: 1;
        }

        .sidebar-menu .nav-link {
            display: flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--radius-btn);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            border-left: 4px solid transparent;
            transition: var(--transition);
            background: transparent;
        }

        .sidebar-menu .nav-link i {
            margin-right: 10px;
            width: 18px;
            text-align: center;
            color: #9AB0B7;
            font-size: 14px;
            transition: var(--transition);
        }

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

        .sidebar-menu .nav-link:hover i {
            color: var(--primary);
        }

        .sidebar-menu .nav-link.active {
            background: var(--primary-light);
            border-left-color: var(--primary);
            color: var(--primary);
            font-weight: 600;
        }

        .sidebar-menu .nav-link.active i {
            color: var(--primary);
        }

        .sidebar-cert {
            padding-top: 16px;
            border-top: 1px solid var(--border);
            font-size: 12px;
            color: #90A6AC;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .main-area {
            flex: 1;
            min-width: 0;
        }

        .top-bar {
            background: rgba(255, 255, 255, .9);
            -webkit-backdrop-filter: blur(10px);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            padding: 12px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .top-bar-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
        }

        .top-bar-title i {
            color: var(--primary);
            font-size: 14px;
        }

        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .search-box {
            position: relative;
        }

        .search-box input {
            width: 240px;
            height: 38px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 0 14px 0 36px;
            background: var(--bg);
            font-size: 13px;
            color: var(--text);
            transition: var(--transition);
        }

        .search-box input::placeholder {
            color: #9AB0B7;
        }

        .search-box input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(14, 110, 117, .1);
        }

        .search-box i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: #9AB0B7;
            font-size: 14px;
            pointer-events: none;
        }

        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            padding: 10px 22px;
            border: 1px solid transparent;
            transition: var(--transition);
            font-size: 14px;
            letter-spacing: .02em;
        }

        .btn:focus,
        .btn:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(14, 110, 117, .18);
        }

        .btn-primary {
            --bs-btn-bg: var(--primary);
            --bs-btn-border-color: var(--primary);
            --bs-btn-hover-bg: var(--primary-dark);
            --bs-btn-hover-border-color: var(--primary-dark);
            --bs-btn-active-bg: var(--primary-dark);
            --bs-btn-active-border-color: var(--primary-dark);
            --bs-btn-color: #fff;
            --bs-btn-hover-color: #fff;
            --bs-btn-active-color: #fff;
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }

        .btn-outline-primary {
            --bs-btn-color: var(--primary);
            --bs-btn-border-color: var(--primary);
            --bs-btn-hover-bg: rgba(14, 110, 117, .1);
            --bs-btn-hover-border-color: var(--primary);
            --bs-btn-hover-color: var(--primary-dark);
            --bs-btn-active-bg: var(--primary-light);
            --bs-btn-active-border-color: var(--primary);
            --bs-btn-active-color: var(--primary-dark);
            color: var(--primary);
            border-color: var(--primary);
            background: transparent;
        }

        .btn-outline-primary:hover {
            background: rgba(14, 110, 117, .1);
            color: var(--primary-dark);
            border-color: var(--primary);
            transform: translateY(-1px);
        }

        .btn-cta {
            --bs-btn-bg: var(--accent);
            --bs-btn-border-color: var(--accent);
            --bs-btn-hover-bg: var(--accent-dark);
            --bs-btn-hover-border-color: var(--accent-dark);
            --bs-btn-active-bg: var(--accent-dark);
            --bs-btn-active-border-color: var(--accent-dark);
            --bs-btn-color: #fff;
            --bs-btn-hover-color: #fff;
            --bs-btn-active-color: #fff;
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }

        .btn-cta:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 117, 71, .3);
        }

        .btn-accent {
            --bs-btn-bg: var(--accent);
            --bs-btn-border-color: var(--accent);
            --bs-btn-hover-bg: var(--accent-dark);
            --bs-btn-hover-border-color: var(--accent-dark);
            --bs-btn-active-bg: var(--accent-dark);
            --bs-btn-active-border-color: var(--accent-dark);
            --bs-btn-color: #fff;
            --bs-btn-hover-color: #fff;
            --bs-btn-active-color: #fff;
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .15);
        }

        .btn-lg {
            padding: 12px 30px;
            font-size: 15px;
            border-radius: 12px;
        }

        .btn-sm {
            padding: 6px 16px;
            font-size: 13px;
            border-radius: 8px;
        }

        .section {
            padding: 72px 0;
        }

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

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            letter-spacing: .02em;
        }

        .section-header p {
            color: var(--text-secondary);
            font-size: 14px;
            margin: 0;
        }

        .text-link {
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .text-link i {
            transition: transform .25s;
        }

        .text-link:hover {
            color: var(--primary-dark);
        }

        .text-link:hover i {
            transform: translateX(4px);
        }

        .hero {
            background: linear-gradient(rgba(255, 255, 255, .7), rgba(255, 255, 255, .7)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 72px 0;
            min-height: 640px;
            display: flex;
            align-items: center;
            position: relative;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            padding: 6px 14px;
            border-radius: 100px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .hero h1 {
            font-size: 40px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            letter-spacing: .02em;
            margin-bottom: 16px;
        }

        .hero-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: flex;
            gap: 36px;
            border-top: 1px solid var(--border);
            padding-top: 24px;
            flex-wrap: wrap;
        }

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

        .stat-item strong {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.2;
        }

        .stat-item span {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .hero-visual-wrap {
            position: relative;
            display: flex;
            justify-content: center;
        }

        .hero-vertical-frame {
            width: 280px;
            height: 480px;
            border-radius: 24px;
            overflow: hidden;
            position: relative;
            box-shadow: 0 24px 48px rgba(14, 45, 55, .16);
            background: #dfe6e8;
        }

        .hero-vertical-frame img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .video-play-overlay {
            position: absolute;
            inset: 0;
            background: rgba(14, 22, 28, .25);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 10px;
        }

        .play-circle {
            width: 56px;
            height: 56px;
            background: rgba(255, 255, 255, .92);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, .2);
            transition: var(--transition);
        }

        .play-circle:hover {
            transform: scale(1.08);
            background: #fff;
        }

        .video-duration {
            color: #fff;
            font-size: 13px;
            background: rgba(0, 0, 0, .45);
            padding: 2px 10px;
            border-radius: 100px;
            letter-spacing: .04em;
        }

        .hero-float-card {
            position: absolute;
            bottom: 24px;
            right: 5%;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 12px 16px;
            box-shadow: var(--shadow-hover);
            display: flex;
            align-items: center;
            gap: 10px;
            animation: floatY 3s ease-in-out infinite;
        }

        @keyframes floatY {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-8px);
            }
        }

        .hero-float-card .float-card-icon {
            font-size: 20px;
            color: var(--accent);
        }

        .hero-float-card strong {
            font-size: 14px;
            display: block;
        }

        .hero-float-card span {
            font-size: 12px;
            color: var(--text-secondary);
        }

        .hot-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
            border: none;
        }

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

        .hot-card-media {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #dfe6e8;
        }

        .hot-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .35s ease;
        }

        .hot-card:hover .hot-card-media img {
            transform: scale(1.02);
        }

        .badge-hot,
        .badge-popular,
        .badge-new {
            position: absolute;
            top: 12px;
            left: 12px;
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 100px;
            z-index: 2;
            box-shadow: 0 2px 8px rgba(0, 0, 0, .12);
        }

        .badge-hot {
            background: var(--accent);
        }

        .badge-popular {
            background: var(--primary);
        }

        .badge-new {
            background: #F5A623;
        }

        .hot-stats {
            position: absolute;
            right: 12px;
            bottom: 12px;
            background: rgba(255, 255, 255, .92);
            color: var(--text);
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: 100px;
            display: flex;
            align-items: center;
            gap: 5px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, .08);
        }

        .hot-card h3 {
            font-size: 15px;
            font-weight: 600;
            padding: 14px 16px 4px;
            margin: 0;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 50px;
        }

        .hot-card p {
            font-size: 13px;
            color: var(--text-secondary);
            padding: 0 16px 16px;
            margin: 0;
            line-height: 1.6;
        }

        .recommend-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 18px;
            display: flex;
            align-items: center;
            gap: 16px;
            height: 100%;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .recommend-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }

        .recommend-num {
            width: 32px;
            height: 32px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .recommend-thumb {
            width: 96px;
            height: 96px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
            background: #dfe6e8;
        }

        .recommend-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .recommend-info {
            flex: 1;
            min-width: 0;
        }

        .recommend-info h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--text);
        }

        .recommend-info p {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            line-height: 1.6;
        }

        .recommend-tags {
            display: flex;
            gap: 6px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .tag {
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            padding: 2px 8px;
            border-radius: var(--radius-tag);
            font-weight: 500;
        }

        .section-reviews {
            background: var(--card-bg);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .review-card {
            background: var(--bg);
            border-radius: var(--radius-card);
            padding: 24px;
            height: 100%;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .review-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--border);
            background: #fff;
        }

        .review-head {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .review-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            flex-shrink: 0;
        }

        .review-user strong {
            font-size: 14px;
            display: block;
            line-height: 1.4;
        }

        .review-stars {
            color: #F5A623;
            font-size: 12px;
            letter-spacing: 2px;
            line-height: 1.4;
        }

        .review-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.8;
        }

        .feature-news-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: block;
            height: 100%;
            transition: var(--transition);
        }

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

        .feature-news-thumb {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #dfe6e8;
        }

        .feature-news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .35s ease;
        }

        .feature-news-card:hover .feature-news-thumb img {
            transform: scale(1.02);
        }

        .feature-news-info {
            padding: 24px;
        }

        .news-cat {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 100px;
            margin-bottom: 12px;
        }

        .feature-news-info h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.5;
            color: var(--text);
        }

        .feature-news-info p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 12px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .feature-news-info time {
            font-size: 13px;
            color: #9AB0B7;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            height: 100%;
        }

        .news-list-item {
            background: var(--card-bg);
            border-radius: 12px;
            box-shadow: var(--shadow-card);
            padding: 16px 18px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .news-list-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
            border-color: var(--primary-light);
        }

        .news-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
            margin-top: 8px;
        }

        .news-list-content {
            flex: 1;
            min-width: 0;
        }

        .news-list-content h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 4px;
            line-height: 1.5;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-list-content p {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 6px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-list-content time {
            font-size: 12px;
            color: #9AB0B7;
        }

        .news-empty {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            min-height: 280px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-card);
            border: 1px dashed var(--border);
        }

        .news-empty p {
            color: var(--text-secondary);
            font-size: 15px;
            margin: 0;
        }

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

        .cta-card {
            background: var(--primary-light);
            border: 2px solid var(--primary);
            border-radius: 20px;
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-card h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .cta-card p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
        }

        .footer {
            background: var(--bg);
            border-top: 1px solid var(--border);
            padding: 64px 0 24px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

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

        .footer h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text);
        }

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

        .footer ul li {
            margin-bottom: 8px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .footer ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

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

        .footer ul li i {
            color: var(--primary);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            margin-top: 48px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
            text-align: center;
            font-size: 13px;
            color: #9AB0B7;
        }

        .mobile-navbar {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            padding: 8px 0;
        }

        .mobile-navbar .navbar-brand {
            font-weight: 700;
            color: var(--primary);
            font-size: 17px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-brand-mark {
            width: 28px;
            height: 28px;
            background: var(--primary);
            color: #fff;
            border-radius: 7px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            font-weight: 700;
        }

        .mobile-navbar .navbar-toggler {
            border: none;
            font-size: 20px;
            color: var(--primary);
            padding: 4px 8px;
        }

        .mobile-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 4px rgba(14, 110, 117, .15);
        }

        .mobile-navbar .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 15px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }

        .mobile-navbar .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .mobile-navbar .nav-link[data-slug] {
            color: var(--primary);
            font-weight: 500;
        }

        @media (max-width: 991.98px) {
            .sidebar-nav {
                display: none;
            }
            .top-bar {
                padding: 10px 20px;
            }
            .hero {
                min-height: auto;
                padding: 56px 0;
            }
            .section {
                padding: 48px 0;
            }
        }

        @media (max-width: 767.98px) {
            .hero h1 {
                font-size: 30px;
            }
            .hero-actions {
                margin-bottom: 28px;
            }
            .hero-stats {
                gap: 20px;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .hero-vertical-frame {
                width: 220px;
                height: 380px;
            }
            .cta-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 32px 24px;
            }
            .recommend-card {
                flex-wrap: wrap;
            }
            .recommend-thumb {
                width: 100%;
                height: auto;
                aspect-ratio: 16/9;
            }
            .search-box input {
                width: 150px;
            }
        }

        @media (max-width: 575.98px) {
            .top-bar {
                padding: 10px 16px;
            }
            .top-bar-right .btn {
                display: none;
            }
            .hero-stats {
                gap: 16px;
            }
            .stat-item strong {
                font-size: 18px;
            }
            .cta-card h2 {
                font-size: 20px;
            }
            .footer {
                padding: 48px 0 20px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0E6E75;
            --primary-dark: #0A565C;
            --primary-light: rgba(14, 110, 117, 0.08);
            --accent: #FF7547;
            --accent-dark: #E85D34;
            --bg: #F4F8FA;
            --card: #FFFFFF;
            --text: #16282E;
            --muted: #5C7178;
            --border: #E3EBEE;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-tag: 6px;
            --shadow: 0 4px 18px rgba(14, 45, 55, 0.07);
            --shadow-hover: 0 12px 32px rgba(14, 45, 55, 0.13);
            --transition: all 0.25s ease;
            --sidebar-width: 236px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
        }

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

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

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-btn);
            padding: 11px 26px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            border: 1px solid transparent;
            transition: var(--transition);
            outline: none;
        }

        .btn:focus-visible {
            box-shadow: 0 0 0 4px rgba(14, 110, 117, 0.25);
        }

        .btn-brand {
            background: var(--primary);
            color: #fff;
        }

        .btn-brand:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 18px rgba(14, 110, 117, 0.22);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: inset 0 -2px 8px rgba(0, 0, 0, 0.12), 0 6px 16px rgba(255, 117, 71, 0.25);
            transform: translateY(-1px);
        }

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

        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        .page-shell {
            min-height: 100vh;
        }

        /* ===== Sidebar ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: #fff;
            border-right: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            padding: 20px 14px 16px;
            z-index: 1040;
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 10px 20px;
            font-size: 21px;
            font-weight: 700;
            color: var(--primary);
        }

        .sidebar-brand i {
            font-size: 26px;
            color: var(--accent);
        }

        .sidebar-menu {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-menu .nav-link {
            display: flex;
            align-items: center;
            gap: 11px;
            padding: 11px 14px;
            border-radius: 10px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            border-left: 4px solid transparent;
        }

        .sidebar-menu .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 15px;
            color: var(--muted);
            transition: var(--transition);
        }

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

        .sidebar-menu .nav-link:hover i {
            color: var(--primary);
        }

        .sidebar-menu .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            border-left-color: var(--primary);
            font-weight: 600;
        }

        .sidebar-menu .nav-link.active i {
            color: var(--primary);
        }

        .sidebar-note {
            margin-top: auto;
            padding: 16px 10px 6px;
            border-top: 1px dashed var(--border);
            font-size: 12px;
            color: var(--muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .sidebar-note i {
            color: var(--primary);
        }

        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== Mobile Navbar ===== */
        .sidebar-mobile {
            display: none;
        }

        .sidebar-mobile .navbar-brand {
            font-weight: 700;
            color: var(--primary);
            font-size: 18px;
        }

        .sidebar-mobile .navbar-brand i {
            color: var(--accent);
            margin-right: 4px;
        }

        .sidebar-mobile .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--primary);
            padding: 6px 12px;
            box-shadow: none;
        }

        .sidebar-mobile .navbar-toggler:focus {
            box-shadow: 0 0 0 4px rgba(14, 110, 117, 0.15);
        }

        .sidebar-mobile .navbar-collapse {
            background: #fff;
            border-radius: 12px;
            padding: 10px;
            margin-top: 8px;
        }

        .sidebar-mobile .navbar-collapse a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 12px;
            border-radius: 10px;
            font-weight: 500;
            color: var(--text);
        }

        .sidebar-mobile .navbar-collapse a.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            padding: 72px 24px;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.72) 60%, rgba(244, 248, 250, 0.72) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            min-height: 420px;
            display: flex;
            align-items: center;
        }

        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-light);
            border: 1px solid rgba(14, 110, 117, 0.2);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: 100px;
            padding: 6px 16px;
            margin-bottom: 18px;
        }

        .category-hero h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 16px;
            color: var(--text);
        }

        .category-hero h1 span {
            color: var(--primary);
        }

        .category-hero p {
            font-size: 16px;
            color: var(--muted);
            max-width: 520px;
            margin-bottom: 26px;
        }

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

        /* ===== Section Base ===== */
        .category-section {
            padding: 64px 0;
        }

        .category-section .container {
            max-width: 1320px;
        }

        .section-heading {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .section-heading h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            margin: 0;
        }

        .section-heading h2 i {
            color: var(--primary);
            margin-right: 8px;
        }

        .section-heading .section-sub {
            color: var(--muted);
            font-size: 14px;
        }

        /* ===== Intro Card ===== */
        .intro-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow);
            padding: 28px;
            display: flex;
            gap: 28px;
            align-items: center;
        }

        .intro-card .intro-media {
            flex: 0 0 260px;
            border-radius: 12px;
            overflow: hidden;
        }

        .intro-card .intro-media img {
            width: 100%;
            height: 190px;
            object-fit: cover;
        }

        .intro-card .intro-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .intro-card .intro-body p {
            color: var(--muted);
            margin-bottom: 16px;
        }

        .intro-card .intro-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 26px;
        }

        .intro-card .intro-stats .stat-item {
            display: flex;
            flex-direction: column;
        }

        .intro-card .intro-stats .stat-num {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
        }

        .intro-card .intro-stats .stat-label {
            font-size: 13px;
            color: var(--muted);
        }

        /* ===== Filter Tags ===== */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 28px;
        }

        .filter-tag {
            padding: 8px 18px;
            border-radius: 100px;
            border: 1px solid var(--border);
            background: #fff;
            font-size: 14px;
            font-weight: 500;
            color: var(--muted);
            cursor: pointer;
            transition: var(--transition);
        }

        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .filter-tag.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(14, 110, 117, 0.2);
        }

        /* ===== Product Grid ===== */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .product-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .product-card .card-media {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

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

        .product-card:hover .card-media img {
            transform: scale(1.03);
        }

        .product-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            z-index: 2;
        }

        .product-card .card-badge.hot {
            background: var(--primary);
        }

        .product-card .card-badge.new {
            background: #7C8AFF;
        }

        .product-card .card-stats {
            position: absolute;
            right: 12px;
            bottom: 10px;
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            text-shadow: 0 1px 4px rgba(0, 0, 0, 0.45);
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(22, 40, 46, 0.28);
            padding: 3px 10px;
            border-radius: 100px;
            backdrop-filter: blur(4px);
        }

        .product-card .card-body {
            padding: 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .product-card .card-body .product-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }

        .product-card .card-body .product-desc {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 14px;
            line-height: 1.6;
        }

        .product-card .card-body .product-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
        }

        .product-card .card-body .product-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .product-card .card-body .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: var(--radius-tag);
            padding: 3px 9px;
        }

        .product-card .card-body .buy-btn {
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            background: var(--accent);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            border: none;
            transition: var(--transition);
        }

        .product-card .card-body .buy-btn:hover {
            background: var(--accent-dark);
            box-shadow: 0 4px 12px rgba(255, 117, 71, 0.25);
        }

        /* ===== Points Section ===== */
        .points-section {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

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

        .point-item {
            display: flex;
            gap: 14px;
            padding: 22px;
            border-radius: var(--radius-card);
            background: var(--bg);
            transition: var(--transition);
        }

        .point-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .point-item .point-icon {
            flex: 0 0 46px;
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }

        .point-item .point-body h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .point-item .point-body p {
            font-size: 13px;
            color: var(--muted);
            margin: 0;
            line-height: 1.6;
        }

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

        .scene-card {
            border-radius: var(--radius-card);
            background: #fff;
            padding: 28px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .scene-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(14, 110, 117, 0.3);
        }

        .scene-card .scene-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
        }

        .scene-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .scene-card p {
            color: var(--muted);
            font-size: 14px;
            margin: 0;
        }

        .scene-card .scene-list {
            list-style: none;
            margin: 14px 0 0;
            padding: 0;
        }

        .scene-card .scene-list li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--muted);
            padding: 4px 0;
        }

        .scene-card .scene-list li i {
            color: var(--primary);
            font-size: 12px;
        }

        /* ===== Steps ===== */
        .steps-section {
            background: #fff;
            border-top: 1px solid var(--border);
        }

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

        .step-item {
            position: relative;
            padding: 26px 20px;
            background: var(--bg);
            border-radius: var(--radius-card);
            text-align: center;
        }

        .step-item .step-num {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            opacity: 0.16;
            line-height: 1;
            margin-bottom: 8px;
        }

        .step-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 13px;
            color: var(--muted);
            margin: 0;
            line-height: 1.6;
        }

        .step-item .step-arrow {
            position: absolute;
            right: -18px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--primary);
            font-size: 14px;
            z-index: 2;
        }

        /* ===== FAQ ===== */
        .faq-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow);
            padding: 28px;
        }

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

        .faq-item {
            border: 1px solid var(--border);
            border-radius: 12px;
            background: #fff;
            transition: var(--transition);
            overflow: hidden;
        }

        .faq-item .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-weight: 600;
            cursor: pointer;
            color: var(--text);
            transition: var(--transition);
        }

        .faq-item .faq-q i {
            color: var(--primary);
            transition: transform 0.25s ease;
        }

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

        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-item.open .faq-a {
            max-height: 240px;
        }

        .faq-item .faq-a p {
            padding: 0 20px 18px;
            color: var(--muted);
            font-size: 14px;
            margin: 0;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding-bottom: 64px;
        }

        .cta-box {
            background: #fff;
            border: 2px solid var(--primary);
            border-radius: var(--radius-card);
            padding: 48px 32px;
            text-align: center;
            position: relative;
            box-shadow: var(--shadow);
        }

        .cta-box h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .cta-box h2 i {
            color: var(--accent);
        }

        .cta-box p {
            color: var(--muted);
            max-width: 460px;
            margin: 0 auto 28px;
        }

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

        /* ===== Footer ===== */
        .footer {
            background: var(--bg);
            border-top: 1px solid var(--border);
            padding: 48px 0 24px;
        }

        .footer .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .footer h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .footer p {
            color: var(--muted);
            font-size: 14px;
        }

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

        .footer ul li {
            padding: 5px 0;
        }

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

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

        .footer .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            margin-top: 36px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            color: var(--muted);
            font-size: 13px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            .product-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .intro-card {
                flex-direction: column;
            }
            .intro-card .intro-media {
                flex: none;
                width: 100%;
            }
            .intro-card .intro-media img {
                height: 180px;
            }
        }

        @media (max-width: 991.98px) {
            :root {
                --sidebar-width: 0px;
            }
            .sidebar {
                display: none;
            }
            .sidebar-mobile {
                display: block;
                position: sticky;
                top: 0;
                z-index: 1030;
                background: #fff;
                border-bottom: 1px solid var(--border);
                padding: 10px 0;
            }
            .main-wrapper {
                margin-left: 0;
            }
            .container {
                max-width: 100%;
                padding: 0 20px;
            }
            .category-hero {
                padding: 52px 20px;
                min-height: auto;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .points-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-item .step-arrow {
                display: none;
            }
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 767.98px) {
            .category-section {
                padding: 48px 0;
            }
            .section-heading h2 {
                font-size: 24px;
            }
            .product-grid {
                grid-template-columns: 1fr;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .points-grid {
                grid-template-columns: 1fr;
            }
            .steps-list {
                grid-template-columns: 1fr;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .cta-box {
                padding: 36px 20px;
            }
            .cta-box h2 {
                font-size: 24px;
            }
            .footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .category-hero {
                padding: 40px 16px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .intro-card {
                padding: 20px;
            }
            .faq-card {
                padding: 20px;
            }
            .sidebar-mobile .navbar-brand {
                font-size: 16px;
            }
            .filter-tag {
                padding: 6px 14px;
                font-size: 13px;
            }
        }

/* roulang page: article */
:root {
    --primary: #0E6E75;
    --primary-dark: #0B5A60;
    --accent: #FF7547;
    --accent-dark: #E8623A;
    --bg: #F4F8FA;
    --card: #FFFFFF;
    --text-main: #16282E;
    --text-secondary: #5C7178;
    --border: #E3EBEE;
    --radius-card: 14px;
    --radius-btn: 10px;
    --radius-tag: 6px;
    --shadow-card: 0 4px 16px rgba(14,45,55,.06);
    --shadow-hover: 0 12px 28px rgba(14,45,55,.12);
    --sidebar-width: 236px;
    --transition: .25s ease;
    --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-main);
    background: var(--bg);
    color: var(--text-main);
    font-size: 15px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color .2s ease; }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }

.container { max-width: 1320px; padding-left: 24px; padding-right: 24px; }

/* ===== Sidebar ===== */
.sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    width: var(--sidebar-width);
    background: var(--card);
    border-right: 1px solid var(--border);
    z-index: 1040;
    display: flex;
    flex-direction: column;
    padding: 28px 0 20px;
}
.sidebar-brand {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
    padding: 12px 24px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
    letter-spacing: .5px;
}
.sidebar-brand i {
    color: var(--primary);
    font-size: 22px;
}
.sidebar-menu {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0 14px;
    overflow-y: auto;
}
.sidebar-menu .nav-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-btn);
    font-size: 14.5px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition);
}
.sidebar-menu .nav-link i {
    width: 18px;
    text-align: center;
    font-size: 15px;
}
.sidebar-menu .nav-link:hover {
    color: var(--primary);
    background: rgba(14,110,117,.06);
}
.sidebar-menu .nav-link.active {
    color: var(--primary);
    font-weight: 600;
    background: rgba(14,110,117,.06);
}
.sidebar-menu .nav-link.active::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 4px;
    background: var(--primary);
    border-radius: 0 4px 4px 0;
}
.sidebar-footer {
    padding: 16px 24px 8px;
    font-size: 12px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
    text-align: center;
    letter-spacing: 1px;
}
.sidebar-footer i { color: var(--primary); margin-right: 4px; }

/* ===== Main Wrapper ===== */
.main-wrapper {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== Mobile Nav ===== */
.mobile-nav {
    display: none;
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
    z-index: 1030;
}
.mobile-nav .navbar-brand {
    font-weight: 700;
    font-size: 18px;
    color: var(--text-main);
}
.mobile-nav .navbar-brand i { color: var(--primary); margin-right: 6px; }
.mobile-nav .navbar-toggler {
    border: none;
    font-size: 20px;
    color: var(--text-main);
    padding: 6px 10px;
}
.mobile-nav .navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(14,110,117,.15);
}
.mobile-nav .navbar-nav {
    padding: 12px 0 4px;
}
.mobile-nav .nav-link {
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-btn);
}
.mobile-nav .nav-link:hover,
.mobile-nav .nav-link.active {
    color: var(--primary);
    background: rgba(14,110,117,.06);
}

/* ===== Article Page ===== */
.article-page {
    flex: 1;
    padding: 48px 0 72px;
}
.breadcrumb-nav {
    margin-bottom: 20px;
    font-size: 13px;
    color: var(--text-secondary);
}
.breadcrumb-nav a {
    color: var(--primary);
    font-weight: 500;
}
.breadcrumb-nav a:hover { color: var(--primary-dark); }
.breadcrumb-nav .sep {
    margin: 0 8px;
    color: #B8C8CE;
}
.breadcrumb-nav .current {
    color: var(--text-secondary);
}

.article-card {
    background: var(--card);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 44px 48px;
}

.article-title {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--text-main);
    margin-bottom: 18px;
    letter-spacing: .3px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    padding-bottom: 20px;
    margin-bottom: 28px;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-secondary);
}
.article-meta .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.article-meta .meta-item i { color: var(--primary); font-size: 12px; }
.article-meta .meta-cat {
    background: rgba(14,110,117,.08);
    color: var(--primary);
    padding: 2px 10px;
    border-radius: var(--radius-tag);
    font-weight: 600;
    font-size: 12px;
}

.article-body {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-main);
}
.article-body > * + * { margin-top: 24px; }
.article-body p { line-height: 1.8; }
.article-body h2 {
    font-size: 22px;
    font-weight: 700;
    margin-top: 40px;
    margin-bottom: 14px;
    color: var(--text-main);
}
.article-body h3 {
    font-size: 18px;
    font-weight: 700;
    margin-top: 32px;
    margin-bottom: 10px;
    color: var(--text-main);
}
.article-body ul,
.article-body ol {
    padding-left: 22px;
    margin: 20px 0;
}
.article-body li { margin-bottom: 8px; }
.article-body img {
    border-radius: var(--radius-card);
    margin: 28px 0;
    width: 100%;
    object-fit: cover;
}
.article-body blockquote {
    border-left: 4px solid var(--primary);
    background: rgba(14,110,117,.05);
    padding: 18px 22px;
    border-radius: 0 var(--radius-card) var(--radius-card) 0;
    font-style: italic;
    color: var(--text-secondary);
}
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
}
.article-body th,
.article-body td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
}
.article-body th {
    background: rgba(14,110,117,.04);
    font-weight: 600;
}
.article-body code {
    background: #F0F5F6;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 13px;
}

.article-back {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 40px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
}

/* ===== Not Found ===== */
.not-found {
    text-align: center;
    padding: 72px 0;
}
.not-found i {
    font-size: 48px;
    color: #CBD8DD;
    margin-bottom: 20px;
}
.not-found h2 {
    font-size: 24px;
    margin-bottom: 12px;
}
.not-found p {
    color: var(--text-secondary);
    margin-bottom: 28px;
}

/* ===== Sidebar Widget ===== */
.article-sidebar .sidebar-widget {
    background: var(--card);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 28px;
    margin-bottom: 24px;
}
.sidebar-widget .widget-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 22px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
    position: relative;
}
.sidebar-widget .widget-title::after {
    content: '';
    position: absolute;
    left: 0; bottom: -1px;
    width: 32px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
}
.rec-item {
    display: flex;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px solid #F0F5F6;
    transition: all var(--transition);
    align-items: flex-start;
}
.rec-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}
.rec-item:hover .rec-info h4 {
    color: var(--primary);
}
.rec-item img {
    width: 84px;
    height: 64px;
    object-fit: cover;
    border-radius: 10px;
    flex-shrink: 0;
}
.rec-info h4 {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.5;
    color: var(--text-main);
    margin-bottom: 4px;
    transition: color var(--transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.rec-info span {
    font-size: 12px;
    color: var(--text-secondary);
}

/* ===== Buttons ===== */
.btn {
    border-radius: var(--radius-btn);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 24px;
    transition: all var(--transition);
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    line-height: 1.5;
}
.btn:focus {
    box-shadow: 0 0 0 4px rgba(14,110,117,.15);
    outline: none;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-hover);
}
.btn-outline-primary {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}
.btn-outline-primary:hover {
    background: rgba(14,110,117,.08);
    color: var(--primary-dark);
    border-color: var(--primary-dark);
}
.btn-cta {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.btn-cta:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(255,117,71,.25);
}

/* ===== CTA Section ===== */
.cta-section {
    padding: 72px 24px;
    background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
    position: relative;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,.85);
}
.cta-section .container {
    position: relative;
    z-index: 1;
}
.cta-card {
    background: var(--card);
    border: 2px solid var(--primary);
    border-radius: var(--radius-card);
    padding: 56px 40px;
    text-align: center;
    box-shadow: var(--shadow-hover);
    max-width: 720px;
    margin: 0 auto;
}
.cta-card h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}
.cta-card p {
    color: var(--text-secondary);
    margin-bottom: 28px;
    font-size: 15px;
}

/* ===== Footer ===== */
.footer {
    background: #EEF4F6;
    padding: 56px 0 24px;
    border-top: 1px solid var(--border);
}
.footer .footer-brand {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 12px;
}
.footer .footer-brand i { color: var(--primary); margin-right: 8px; }
.footer p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0;
    max-width: 320px;
}
.footer h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-main);
}
.footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer ul li {
    margin-bottom: 10px;
    font-size: 14px;
    color: var(--text-secondary);
}
.footer ul li a {
    color: var(--text-secondary);
    transition: color var(--transition);
}
.footer ul li a:hover {
    color: var(--primary);
}
.footer ul li i {
    margin-right: 8px;
    color: var(--primary);
    font-size: 13px;
}
.footer-bottom {
    border-top: 1px solid var(--border);
    margin-top: 40px;
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
    color: var(--text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 1199.98px) {
    .article-card { padding: 36px 32px; }
}

@media (max-width: 991.98px) {
    .sidebar { display: none; }
    .main-wrapper { margin-left: 0; }
    .mobile-nav { display: block; }
    .article-page { padding: 32px 0 56px; }
    .cta-section { padding: 48px 20px; }
}

@media (max-width: 767.98px) {
    .container { padding-left: 16px; padding-right: 16px; }
    .article-card { padding: 28px 20px; }
    .article-title { font-size: 22px; }
    .article-meta { gap: 12px; font-size: 12px; }
    .article-body { font-size: 14.5px; }
    .cta-card { padding: 36px 24px; }
    .cta-card h2 { font-size: 22px; }
    .article-back .btn { width: 100%; justify-content: center; }
}

@media (max-width: 575.98px) {
    .article-page { padding: 24px 0 40px; }
    .breadcrumb-nav { font-size: 12px; }
    .article-meta { flex-direction: column; gap: 6px; }
}