/* roulang page: index */
:root {
            --color-primary: #D95D39;
            --color-primary-hover: #B94A2B;
            --color-secondary: #2F5D50;
            --color-bg: #FAF6F0;
            --color-card: #FFFFFF;
            --color-border: #E7DED3;
            --color-text: #1F2933;
            --color-text-muted: #6B7280;
            --color-tag-bg: #FBEDE8;
            --color-tag-text: #B94A2B;
            --radius-card: 12px;
            --radius-btn: 12px;
            --radius-pill: 999px;
            --radius-input: 10px;
            --shadow-card: 0 8px 24px rgba(31, 41, 51, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(31, 41, 51, 0.10);
            --shadow-btn: 0 6px 16px rgba(217, 93, 57, 0.24);
            --transition: 0.22s ease;
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', Arial, sans-serif;
        }

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

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

        body {
            margin: 0;
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a {
            color: var(--color-secondary);
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), opacity var(--transition);
        }

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            -webkit-tap-highlight-color: transparent;
        }

        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(217, 93, 57, 0.45);
            outline-offset: 2px;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(250, 246, 240, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border);
            padding-top: 14px;
            padding-bottom: 14px;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--color-text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

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

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
            color: #fff;
            border-radius: 10px;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 26px;
        }

        .nav-desktop a {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
        }

        .nav-desktop a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background-color: var(--color-primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
            border-radius: 2px;
        }

        .nav-desktop a:hover::after,
        .nav-desktop a.active::after {
            transform: scaleX(1);
        }

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

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--color-border);
            border-radius: 10px;
            background: var(--color-card);
            color: var(--color-text);
            font-size: 22px;
            line-height: 1;
            transition: background-color var(--transition), border-color var(--transition);
        }

        .nav-toggle:hover {
            border-color: var(--color-primary);
            background-color: var(--color-tag-bg);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 8px;
            padding: 16px 0 8px;
            border-top: 1px solid var(--color-border);
            margin-top: 12px;
        }

        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 10px;
            font-weight: 500;
            color: var(--color-text);
            background: var(--color-card);
            border: 1px solid var(--color-border);
            transition: background-color var(--transition), color var(--transition), border-color var(--transition);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background-color: var(--color-tag-bg);
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

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

        /* Hero */
        .hero {
            position: relative;
            padding: 80px 0 72px;
            background-color: var(--color-bg);
            background-image: radial-gradient(rgba(217, 93, 57, 0.05) 1px, transparent 1px);
            background-size: 28px 28px;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -160px;
            right: -120px;
            width: 460px;
            height: 460px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(217, 93, 57, 0.13), transparent 68%);
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -140px;
            left: -100px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(47, 93, 80, 0.10), transparent 70%);
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            max-width: 840px;
            margin: 0 auto;
            text-align: center;
        }

        .hero h1 {
            font-size: clamp(32px, 5vw, 44px);
            line-height: 1.35;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 18px;
            letter-spacing: -0.02em;
        }

        .hero p {
            font-size: 17px;
            line-height: 1.9;
            color: var(--color-text-muted);
            margin: 0 auto 30px;
            max-width: 680px;
        }

        .hero-search {
            display: flex;
            gap: 12px;
            max-width: 680px;
            margin: 0 auto 22px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .hero-search input {
            flex: 1 1 300px;
            min-width: 240px;
            padding: 16px 20px;
            border: 2px solid var(--color-border);
            border-radius: var(--radius-input);
            background: var(--color-card);
            font-size: 15px;
            color: var(--color-text);
            transition: border-color var(--transition), box-shadow var(--transition);
            appearance: none;
        }

        .hero-search input::placeholder {
            color: #9CA3AF;
        }

        .hero-search input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 4px rgba(217, 93, 57, 0.13);
            outline: none;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            border: 2px solid transparent;
            padding: 12px 22px;
            font-size: 15px;
            white-space: nowrap;
            -webkit-tap-highlight-color: transparent;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: var(--shadow-btn);
            border-color: var(--color-primary);
        }

        .btn-primary:hover {
            background: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
            color: #fff;
            box-shadow: 0 8px 20px rgba(217, 93, 57, 0.32);
        }

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

        .btn-secondary:hover {
            background: #EFF7F4;
            border-color: var(--color-secondary);
            color: var(--color-secondary);
        }

        .btn-lg {
            padding: 15px 28px;
            font-size: 16px;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            border-radius: 999px;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 30px;
        }

        .tag-chip {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--color-tag-bg);
            color: var(--color-tag-text);
            font-size: 13px;
            font-weight: 500;
            border: 1px solid rgba(217, 93, 57, 0.18);
            transition: background-color var(--transition), transform var(--transition);
        }

        .tag-chip:hover {
            background: #FBE0D6;
            transform: translateY(-2px);
            color: var(--color-primary-hover);
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 32px;
            margin-top: 8px;
        }

        .hero-stat {
            text-align: center;
            min-width: 100px;
        }

        .hero-stat strong {
            display: block;
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
        }

        .hero-stat span {
            display: block;
            font-size: 13px;
            color: var(--color-text-muted);
        }

        /* Section */
        .section {
            padding: 64px 0;
        }

        .section-alt {
            background-color: #F6EFE6;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

        .section-header h2 {
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 700;
            color: var(--color-text);
            margin: 0;
            letter-spacing: -0.01em;
        }

        .section-header .section-subtitle {
            font-size: 14px;
            color: var(--color-text-muted);
            max-width: 360px;
            line-height: 1.7;
            margin: 0;
        }

        .section-header .view-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-secondary);
            border-bottom: 2px solid var(--color-secondary);
            padding-bottom: 2px;
            transition: color var(--transition), border-color var(--transition);
        }

        .section-header .view-more:hover {
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

        /* Quick entry bar */
        .quick-entry-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 14px;
        }

        .quick-entry-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 18px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            color: var(--color-text);
            font-weight: 500;
            font-size: 14px;
            transition: all var(--transition);
            box-shadow: 0 2px 8px rgba(31, 41, 51, 0.03);
        }

        .quick-entry-item:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            color: var(--color-primary);
        }

        .quick-entry-icon {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-tag-bg);
            border-radius: 10px;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
        }

        /* Category grid */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .category-card {
            display: block;
            padding: 22px 20px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--color-secondary);
            opacity: 0.7;
            transform: scaleY(0);
            transform-origin: bottom;
            transition: transform var(--transition);
        }

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

        .category-card:hover::before {
            transform: scaleY(1);
        }

        .category-card h3 {
            margin: 0 0 8px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            transition: color var(--transition);
        }

        .category-card:hover h3 {
            color: var(--color-secondary);
        }

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

        .category-card .cat-count {
            display: inline-block;
            margin-top: 10px;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-tag-bg);
            padding: 3px 10px;
            border-radius: var(--radius-pill);
        }

        /* Latest list */
        .latest-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .post-card {
            display: flex;
            flex-direction: column;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .post-card-img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            background: #F0E9E0;
        }

        .post-card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .post-card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            background: var(--color-tag-bg);
            color: var(--color-tag-text);
            border: 1px solid rgba(217, 93, 57, 0.16);
        }

        .badge-green {
            background: #E8F3EF;
            color: var(--color-secondary);
            border-color: rgba(47, 93, 80, 0.16);
        }

        .post-card-time {
            font-size: 12px;
            color: var(--color-text-muted);
        }

        .post-card h3 {
            margin: 0 0 10px;
            font-size: 16px;
            font-weight: 600;
            line-height: 1.6;
            color: var(--color-text);
            transition: color var(--transition);
        }

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

        .post-card p {
            margin: 0 0 14px;
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .post-card-link {
            align-self: flex-start;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-secondary);
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
        }

        .post-card:hover .post-card-link {
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--color-text-muted);
            font-size: 15px;
            background: var(--color-card);
            border: 1px dashed var(--color-border);
            border-radius: var(--radius-card);
        }

        /* Feature cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .feature-card {
            display: flex;
            flex-direction: column;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }

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

        .feature-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: 10px;
            margin-bottom: 16px;
            background: #F0E9E0;
        }

        .feature-card h3 {
            margin: 0 0 10px;
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
        }

        .feature-card p {
            margin: 0 0 14px;
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            flex: 1;
        }

        .feature-card .badge {
            align-self: flex-start;
        }

        /* Split section */
        .split-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .split-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 14px;
        }

        .split-text p {
            font-size: 15px;
            color: var(--color-text-muted);
            line-height: 1.9;
            margin: 0 0 18px;
        }

        .split-text .btn {
            margin-top: 6px;
        }

        .split-image {
            background: #F0E9E0;
            border-radius: var(--radius-card);
            overflow: hidden;
            min-height: 280px;
            box-shadow: var(--shadow-card);
        }

        .split-image img {
            width: 100%;
            height: 100%;
            min-height: 280px;
            object-fit: cover;
        }

        /* Course cards */
        .course-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .course-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .course-card .course-icon {
            width: 44px;
            height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-tag-bg);
            border-radius: 12px;
            color: var(--color-primary);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .course-card h3 {
            margin: 0 0 10px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
        }

        .course-card p {
            margin: 0 0 14px;
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            flex: 1;
        }

        .course-card .course-meta {
            font-size: 12px;
            color: var(--color-text-muted);
            display: flex;
            justify-content: space-between;
            border-top: 1px solid var(--color-border);
            padding-top: 12px;
        }

        /* Ranking list */
        .ranking-list {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            border-bottom: 1px solid var(--color-border);
            transition: background-color var(--transition);
        }

        .ranking-item:last-child {
            border-bottom: none;
        }

        .ranking-item:hover {
            background: #FDF8F4;
        }

        .ranking-number {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-weight: 700;
            font-size: 17px;
            flex-shrink: 0;
            background: #F1EAE2;
            color: var(--color-text-muted);
        }

        .ranking-item.top-1 .ranking-number {
            background: var(--color-primary);
            color: #fff;
        }

        .ranking-item.top-2 .ranking-number {
            background: #E08A73;
            color: #fff;
        }

        .ranking-item.top-3 .ranking-number {
            background: var(--color-secondary);
            color: #fff;
        }

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

        .ranking-info h3 {
            margin: 0 0 4px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .ranking-score {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .score-bar {
            flex: 1;
            max-width: 160px;
            height: 6px;
            background: #F1EAE2;
            border-radius: 3px;
            overflow: hidden;
        }

        .score-bar-fill {
            height: 100%;
            background: var(--color-primary);
            border-radius: 3px;
            transition: width 0.6s ease;
        }

        .score-value {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            min-width: 32px;
            text-align: right;
        }

        /* Steps */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 16px;
        }

        .step-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 20px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }

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

        .step-num {
            width: 44px;
            height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }

        .step-item h3 {
            margin: 0 0 6px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
        }

        .step-item p {
            margin: 0;
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* Hot ranking */
        .hot-list {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .hot-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 20px;
            border-bottom: 1px solid var(--color-border);
            transition: background-color var(--transition);
        }

        .hot-item:last-child {
            border-bottom: none;
        }

        .hot-item:hover {
            background: #FDF8F4;
        }

        .hot-rank {
            font-size: 22px;
            font-weight: 700;
            width: 36px;
            color: var(--color-primary);
            flex-shrink: 0;
            text-align: center;
        }

        .hot-item h3 {
            margin: 0;
            flex: 1;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
        }

        .hot-item .badge {
            flex-shrink: 0;
        }

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

        .tag-cloud a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: var(--color-card);
            border: 1px solid var(--color-border);
            color: var(--color-text-muted);
            font-size: 13px;
            font-weight: 500;
            transition: all var(--transition);
        }

        .tag-cloud a:hover {
            background: var(--color-tag-bg);
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

        /* Resource pack cards */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 16px;
        }

        .resource-card {
            display: flex;
            flex-direction: column;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }

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

        .resource-card img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            background: #F0E9E0;
        }

        .resource-card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .resource-card h3 {
            margin: 0 0 8px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
        }

        .resource-card p {
            margin: 0 0 12px;
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.6;
            flex: 1;
        }

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

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-weight: 600;
            font-size: 15px;
            color: var(--color-text);
            cursor: pointer;
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            transition: color var(--transition);
        }

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

        .faq-arrow {
            width: 22px;
            height: 22px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--color-tag-bg);
            color: var(--color-primary);
            transition: transform var(--transition);
            font-size: 12px;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(90deg);
        }

        .faq-answer {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.8;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* Form */
        .form-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px;
        }

        .form-card h2 {
            margin: 0 0 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text);
        }

        .form-card .form-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 22px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-bottom: 16px;
        }

        .form-group label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            padding: 12px 16px;
            border: 2px solid var(--color-border);
            border-radius: var(--radius-input);
            background: #FFFDFA;
            font-size: 14px;
            color: var(--color-text);
            transition: border-color var(--transition), box-shadow var(--transition);
            appearance: none;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 4px rgba(217, 93, 57, 0.13);
            outline: none;
        }

        .form-group textarea {
            resize: vertical;
            min-height: 90px;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        /* Trust bar */
        .trust-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            align-items: center;
            justify-content: space-between;
            padding: 28px 24px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--color-text);
            font-weight: 500;
        }

        .trust-icon {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #E8F3EF;
            border-radius: 10px;
            color: var(--color-secondary);
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
        }

        /* Footer */
        .site-footer {
            background: #1F2933;
            color: #D1D5DB;
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand:hover {
            color: #F0A48C;
        }

        .footer-desc {
            font-size: 13px;
            color: #9CA3AF;
            line-height: 1.8;
            max-width: 300px;
            margin: 0 0 16px;
        }

        .footer-col h3 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 13px;
            color: #D1D5DB;
            transition: color var(--transition);
        }

        .footer-col ul a:hover {
            color: #F0A48C;
        }

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

        .footer-tags span {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.08);
            color: #D1D5DB;
            font-size: 12px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
            font-size: 12px;
            color: #9CA3AF;
        }

        .footer-bottom a {
            color: #D1D5DB;
        }

        .footer-bottom a:hover {
            color: #F0A48C;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .latest-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .course-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
            .split-grid {
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .nav-desktop {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .hero {
                padding: 56px 0 48px;
            }

            .hero h1 {
                font-size: 28px;
            }

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

            .hero-stats {
                gap: 20px;
            }

            .hero-stat strong {
                font-size: 22px;
            }

            .section {
                padding: 44px 0;
            }

            .category-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .latest-list {
                grid-template-columns: 1fr;
            }

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

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

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

            .split-image {
                min-height: 200px;
            }

            .split-image img {
                min-height: 200px;
            }

            .form-row {
                grid-template-columns: 1fr;
            }

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

            .trust-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 18px;
            }

            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .ranking-item {
                flex-wrap: wrap;
                gap: 10px;
            }

            .ranking-number {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }

            .form-card {
                padding: 22px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .brand {
                font-size: 17px;
                letter-spacing: 0;
            }

            .brand-mark {
                width: 30px;
                height: 30px;
                font-size: 16px;
            }

            .hero h1 {
                font-size: 24px;
            }

            .hero-search {
                flex-direction: column;
            }

            .hero-search input {
                min-width: auto;
                width: 100%;
            }

            .hero-search .btn {
                width: 100%;
                justify-content: center;
            }

            .quick-entry-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .quick-entry-item {
                padding: 10px 12px;
                font-size: 13px;
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

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

            .category-card {
                padding: 16px 14px;
            }

            .category-card h3 {
                font-size: 14px;
            }

            .category-card p {
                font-size: 12px;
            }

            .section-header h2 {
                font-size: 21px;
            }

            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }

            .hero-stat {
                min-width: auto;
            }

            .hot-rank {
                font-size: 18px;
                width: 28px;
            }

            .hot-item h3 {
                font-size: 14px;
            }

            .post-card-img {
                height: 140px;
            }

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

/* roulang page: article */
:root {
            --color-primary: #D95D39;
            --color-primary-hover: #B94A2B;
            --color-secondary: #2F5D50;
            --color-bg: #FAF6F0;
            --color-card: #FFFFFF;
            --color-border: #E7DED3;
            --color-text: #1F2933;
            --color-text-muted: #6B7280;
            --color-tag-bg: #FBEDE8;
            --color-tag-text: #B94A2B;
            --radius-card: 12px;
            --radius-btn: 12px;
            --radius-pill: 999px;
            --radius-input: 10px;
            --shadow-card: 0 8px 24px rgba(31, 41, 51, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(31, 41, 51, 0.10);
            --shadow-btn: 0 6px 16px rgba(217, 93, 57, 0.24);
            --transition: 0.22s ease;
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', Arial, sans-serif;
        }

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

        body {
            margin: 0;
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a {
            color: var(--color-secondary);
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), opacity var(--transition);
        }

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            -webkit-tap-highlight-color: transparent;
        }

        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(217, 93, 57, 0.45);
            outline-offset: 2px;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(250, 246, 240, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border);
            padding-top: 14px;
            padding-bottom: 14px;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--color-text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

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

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
            color: #fff;
            border-radius: 10px;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 26px;
        }

        .nav-desktop a {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
        }

        .nav-desktop a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background-color: var(--color-primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
            border-radius: 2px;
        }

        .nav-desktop a:hover::after,
        .nav-desktop a.active::after {
            transform: scaleX(1);
        }

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

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--color-border);
            border-radius: 10px;
            background: var(--color-card);
            color: var(--color-text);
            font-size: 22px;
            line-height: 1;
            transition: background-color var(--transition), border-color var(--transition);
        }

        .nav-toggle:hover {
            border-color: var(--color-primary);
            background-color: var(--color-tag-bg);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 8px;
            padding: 16px 0 8px;
            border-top: 1px solid var(--color-border);
            margin-top: 12px;
        }

        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 10px;
            font-weight: 500;
            color: var(--color-text);
            background: var(--color-card);
            border: 1px solid var(--color-border);
            transition: background-color var(--transition), color var(--transition), border-color var(--transition);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background-color: var(--color-tag-bg);
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

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

        /* Main sections */
        main {
            flex: 1;
        }

        .section {
            padding: 64px 0;
        }

        .section-alt {
            background-color: #FFFDFC;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .section-heading {
            margin-bottom: 28px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--color-text-muted);
            margin: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            transition: background-color var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
            text-align: center;
            white-space: nowrap;
        }

        .btn:hover {
            transform: translateY(-2px);
        }

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

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
            color: #fff;
            box-shadow: 0 8px 20px rgba(217, 93, 57, 0.30);
        }

        .btn-outline-secondary {
            background-color: #fff;
            color: var(--color-secondary);
            border: 1px solid var(--color-secondary);
        }

        .btn-outline-secondary:hover,
        .btn-outline-secondary:focus {
            background-color: #F0F6F4;
            border-color: var(--color-secondary);
            color: var(--color-secondary);
        }

        .btn-outline-primary {
            background-color: #fff;
            color: var(--color-primary);
            border: 1px solid var(--color-primary);
        }

        .btn-outline-primary:hover,
        .btn-outline-primary:focus {
            background-color: var(--color-tag-bg);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background-color: var(--color-tag-bg);
            color: var(--color-tag-text);
            font-size: 13px;
            font-weight: 600;
            line-height: 1.4;
        }

        /* Article hero */
        .article-hero {
            position: relative;
            padding: 72px 0 48px;
            background-color: var(--color-bg);
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: linear-gradient(120deg, rgba(250, 246, 240, 0.92) 30%, rgba(250, 246, 240, 0.7)), url('/assets/images/0a130338da5cf05d.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.55;
            z-index: 0;
            pointer-events: none;
        }

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

        .article-hero-grid {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 360px;
            gap: 32px;
            align-items: center;
        }

        .article-hero-content {
            max-width: 860px;
        }

        .article-hero h1 {
            font-size: 38px;
            line-height: 1.35;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 16px;
            letter-spacing: 0.01em;
        }

        .article-hero .article-summary {
            font-size: 17px;
            line-height: 1.9;
            color: var(--color-text-muted);
            margin: 0;
            max-width: 760px;
        }

        .article-hero-visual {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 10px;
            box-shadow: var(--shadow-card);
        }

        .article-hero-visual img {
            border-radius: 8px;
            aspect-ratio: 1/1;
            object-fit: cover;
            width: 100%;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            padding: 20px 0 0;
            background: transparent;
        }

        .breadcrumb-list {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .breadcrumb-list li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-list a {
            color: var(--color-secondary);
            font-weight: 500;
        }

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

        .breadcrumb-list .separator {
            color: #B3A89B;
            user-select: none;
        }

        .breadcrumb-list .current {
            color: var(--color-primary);
            font-weight: 600;
            max-width: 360px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* Article body */
        .article-body {
            padding: 32px 0 64px;
        }

        .article-body-inner {
            max-width: 860px;
            margin: 0 auto;
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 48px 56px;
            box-shadow: var(--shadow-card);
        }

        .article-body-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--color-text);
        }

        .article-body-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text);
            margin: 1.6em 0 0.6em;
            line-height: 1.4;
        }

        .article-body-content h3 {
            font-size: 21px;
            font-weight: 700;
            color: var(--color-text);
            margin: 1.5em 0 0.5em;
            line-height: 1.5;
        }

        .article-body-content p {
            margin: 0 0 1.2em;
        }

        .article-body-content ul,
        .article-body-content ol {
            margin: 0 0 1.2em;
            padding-left: 1.6em;
        }

        .article-body-content li {
            margin-bottom: 0.4em;
        }

        .article-body-content blockquote {
            margin: 1.5em 0;
            padding: 16px 24px;
            border-left: 4px solid var(--color-primary);
            background-color: #FFF9F6;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            color: var(--color-text-muted);
            font-style: normal;
        }

        .article-body-content code {
            background-color: #F3EEE8;
            padding: 2px 8px;
            border-radius: 6px;
            font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
            font-size: 0.9em;
            color: #D95D39;
        }

        .article-body-content pre {
            background-color: #1F2933;
            color: #F5F2ED;
            padding: 20px;
            border-radius: var(--radius-card);
            overflow-x: auto;
            margin: 1.5em 0;
        }

        .article-body-content pre code {
            background: none;
            color: inherit;
            padding: 0;
            font-size: 14px;
        }

        .article-body-content img {
            border-radius: var(--radius-card);
            margin: 1.5em 0;
            box-shadow: var(--shadow-card);
        }

        .article-body-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
            font-size: 15px;
        }

        .article-body-content th,
        .article-body-content td {
            border: 1px solid var(--color-border);
            padding: 12px 16px;
            text-align: left;
        }

        .article-body-content th {
            background-color: #F7F1EA;
            font-weight: 600;
            color: var(--color-text);
        }

        .article-empty {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
            padding: 60px 20px;
            text-align: center;
            color: var(--color-text-muted);
        }

        .article-empty p {
            margin: 0;
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
        }

        /* Related */
        .related-section {
            padding: 64px 0;
        }

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

        .related-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 16px;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

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

        .related-card img {
            border-radius: 8px;
            aspect-ratio: 16/9;
            object-fit: cover;
            width: 100%;
            margin-bottom: 12px;
        }

        .related-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 8px 0 6px;
            color: var(--color-text);
            line-height: 1.5;
        }

        .related-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin: 0 0 12px;
            line-height: 1.7;
        }

        .related-card a {
            font-weight: 600;
            color: var(--color-primary);
            font-size: 14px;
        }

        /* Back entry */
        .back-entry-section {
            padding: 32px 0 64px;
        }

        .back-entry-box {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: #FFF9F6;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
        }

        .back-entry-text {
            font-weight: 600;
            color: var(--color-text);
        }

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

        /* FAQ */
        .faq-section {
            padding: 64px 0;
        }

        .faq-list {
            max-width: 860px;
            margin: 24px auto 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-weight: 700;
            font-size: 16px;
            color: var(--color-text);
            background: #fff;
            transition: background-color var(--transition), color var(--transition);
            text-align: left;
        }

        .faq-question:hover {
            background-color: #FFF6F2;
            color: var(--color-primary);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--color-tag-bg);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            transition: transform var(--transition);
        }

        .faq-answer {
            display: none;
            padding: 0 24px 20px;
            color: var(--color-text-muted);
            line-height: 1.8;
        }

        .faq-answer.open {
            display: block;
        }

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

        /* CTA */
        .cta-section {
            padding: 64px 0 80px;
        }

        .cta-card {
            max-width: 860px;
            margin: 0 auto;
            background: linear-gradient(135deg, #FFF4EF, #FFFFFF);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 48px 56px;
            box-shadow: var(--shadow-card);
            text-align: center;
        }

        .cta-card h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .cta-card p {
            color: var(--color-text-muted);
            margin: 0 0 24px;
        }

        .cta-form {
            display: grid;
            grid-template-columns: 1fr 1fr auto;
            gap: 16px;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-form input {
            height: 48px;
            padding: 0 16px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            background: #fff;
            color: var(--color-text);
            transition: border-color var(--transition), box-shadow var(--transition);
            width: 100%;
        }

        .cta-form input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(217, 93, 57, 0.15);
            outline: none;
        }

        .cta-form .btn {
            height: 48px;
            padding: 0 28px;
        }

        /* Footer */
        .site-footer {
            background-color: #1F2933;
            color: #E5E7EB;
            padding: 56px 0 0;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            display: inline-block;
            margin-bottom: 12px;
        }

        .footer-brand:hover {
            color: #F09A7D;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #B8C0CC;
            margin: 0;
        }

        .footer-col h3 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 16px;
        }

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

        .footer-col a {
            color: #B8C0CC;
            font-size: 14px;
            transition: color var(--transition);
        }

        .footer-col a:hover {
            color: #F09A7D;
        }

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

        .footer-tags span {
            background: rgba(255, 255, 255, 0.08);
            color: #E5E7EB;
            border-radius: var(--radius-pill);
            padding: 6px 12px;
            font-size: 13px;
            font-weight: 500;
        }

        .footer-bottom {
            padding: 18px 0;
            text-align: center;
            font-size: 13px;
            color: #9CA3AF;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-hero-grid {
                grid-template-columns: 1fr 300px;
            }
            .article-hero h1 {
                font-size: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .section,
            .article-hero,
            .related-section,
            .faq-section,
            .cta-section,
            .back-entry-section,
            .article-body {
                padding: 40px 0;
            }
            .article-hero-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .article-hero h1 {
                font-size: 28px;
            }
            .article-body-inner {
                padding: 32px 24px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .cta-card {
                padding: 32px 24px;
            }
            .cta-form {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .back-entry-box {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .brand {
                font-size: 17px;
            }
            .brand-mark {
                width: 30px;
                height: 30px;
                font-size: 16px;
            }
            .article-hero h1 {
                font-size: 24px;
            }
            .article-hero .article-summary {
                font-size: 15px;
            }
            .article-body-content h2 {
                font-size: 22px;
            }
            .article-body-content h3 {
                font-size: 19px;
            }
            .badge {
                font-size: 12px;
                padding: 3px 10px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #D95D39;
            --color-primary-hover: #B94A2B;
            --color-secondary: #2F5D50;
            --color-bg: #FAF6F0;
            --color-card: #FFFFFF;
            --color-border: #E7DED3;
            --color-text: #1F2933;
            --color-text-muted: #6B7280;
            --color-tag-bg: #FBEDE8;
            --color-tag-text: #B94A2B;
            --radius-card: 12px;
            --radius-btn: 12px;
            --radius-pill: 999px;
            --radius-input: 10px;
            --shadow-card: 0 8px 24px rgba(31, 41, 51, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(31, 41, 51, 0.10);
            --shadow-btn: 0 6px 16px rgba(217, 93, 57, 0.24);
            --transition: 0.22s ease;
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', Arial, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            margin: 0;
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--color-secondary);
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), opacity var(--transition);
        }
        a:hover {
            color: var(--color-primary);
            text-decoration: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            -webkit-tap-highlight-color: transparent;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(217, 93, 57, 0.45);
            outline-offset: 2px;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(250, 246, 240, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border);
            padding-top: 14px;
            padding-bottom: 14px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--color-text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .brand:hover {
            color: var(--color-primary);
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
            color: #fff;
            border-radius: 10px;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 26px;
        }
        .nav-desktop a {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background-color: var(--color-primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
            border-radius: 2px;
        }
        .nav-desktop a:hover::after,
        .nav-desktop a.active::after {
            transform: scaleX(1);
        }
        .nav-desktop a.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--color-border);
            border-radius: 10px;
            background: var(--color-card);
            color: var(--color-text);
            font-size: 22px;
            line-height: 1;
            transition: background-color var(--transition), border-color var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--color-primary);
            background-color: var(--color-tag-bg);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 8px;
            padding: 16px 0 8px;
            border-top: 1px solid var(--color-border);
            margin-top: 12px;
        }
        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 10px;
            font-weight: 500;
            color: var(--color-text);
            background: var(--color-card);
            border: 1px solid var(--color-border);
            transition: background-color var(--transition), color var(--transition), border-color var(--transition);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            background-color: var(--color-tag-bg);
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        main {
            flex: 1;
            width: 100%;
        }
        section {
            padding: 72px 0;
        }
        .section-alt {
            background-color: #F5EEE6;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--color-text-muted);
            margin-bottom: 40px;
            line-height: 1.7;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
            color: #fff;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 16px;
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
            box-shadow: var(--shadow-btn);
            border: none;
            white-space: nowrap;
        }
        .btn-primary-custom:hover {
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary-hover), var(--color-primary-hover));
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(217, 93, 57, 0.3);
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 26px;
            background: var(--color-card);
            color: var(--color-secondary);
            border: 2px solid var(--color-secondary);
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: background-color var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
            white-space: nowrap;
        }
        .btn-outline-custom:hover {
            background-color: #EFF5F2;
            color: var(--color-secondary);
            border-color: var(--color-secondary);
            transform: translateY(-2px);
        }
        .badge-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            background-color: var(--color-tag-bg);
            color: var(--color-tag-text);
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            white-space: nowrap;
            transition: background-color var(--transition), color var(--transition);
        }
        .badge-tag:hover {
            background-color: var(--color-primary);
            color: #fff;
        }
        .tool-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .tool-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary);
        }
        .tool-card-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: 8px;
            margin-bottom: 16px;
            background-color: var(--color-bg);
        }
        .tool-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
        }
        .tool-card-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }
        .tool-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            padding-top: 12px;
            border-top: 1px solid var(--color-border);
        }
        .rating-stars {
            color: #E8A23D;
            font-size: 14px;
            letter-spacing: 1px;
        }
        .tool-card-time {
            font-size: 12px;
            color: var(--color-text-muted);
        }
        .cat-hero {
            padding: 64px 0 48px;
            background: linear-gradient(135deg, #FAF6F0 0%, #F5E8DD 100%);
            border-bottom: 1px solid var(--color-border);
        }
        .breadcrumb-custom {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb-custom a {
            color: var(--color-secondary);
        }
        .breadcrumb-custom a:hover {
            color: var(--color-primary);
        }
        .cat-hero h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
            line-height: 1.35;
        }
        .cat-hero-desc {
            font-size: 17px;
            color: var(--color-text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .cat-hero-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            margin-top: 8px;
        }
        .cat-hero-stat {
            text-align: center;
            background: var(--color-card);
            border-radius: var(--radius-card);
            padding: 16px 24px;
            box-shadow: var(--shadow-card);
            min-width: 110px;
        }
        .cat-hero-stat-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
        }
        .cat-hero-stat-label {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-top: 4px;
        }
        .subcat-section {
            padding: 48px 0;
        }
        .subcat-list {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .filter-bar-section {
            padding: 32px 0;
            background: var(--color-card);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        .filter-group {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }
        .filter-btn {
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--color-border);
            background: var(--color-bg);
            color: var(--color-text);
            font-size: 14px;
            font-weight: 500;
            transition: background-color var(--transition), color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }
        .filter-btn.active,
        .filter-btn:hover {
            background-color: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .filter-select {
            padding: 9px 16px;
            border-radius: var(--radius-input);
            border: 1px solid var(--color-border);
            background: var(--color-card);
            color: var(--color-text);
            font-size: 14px;
            min-width: 150px;
            cursor: pointer;
        }
        .filter-select:focus {
            outline: 3px solid rgba(217, 93, 57, 0.45);
            outline-offset: 1px;
            border-color: var(--color-primary);
        }
        .view-toggle-group {
            display: flex;
            gap: 6px;
            background: var(--color-bg);
            border-radius: var(--radius-pill);
            padding: 4px;
        }
        .view-toggle-btn {
            padding: 7px 16px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: background-color var(--transition), color var(--transition);
            white-space: nowrap;
        }
        .view-toggle-btn.active,
        .view-toggle-btn:hover {
            background-color: var(--color-card);
            color: var(--color-primary);
            box-shadow: 0 2px 8px rgba(31, 41, 51, 0.08);
        }
        .tool-list-section {
            padding: 56px 0;
        }
        .tool-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .pagination-custom {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .page-btn {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            border: 1px solid var(--color-border);
            background: var(--color-card);
            color: var(--color-text);
            font-size: 14px;
            font-weight: 500;
            transition: background-color var(--transition), color var(--transition), border-color var(--transition);
        }
        .page-btn.active,
        .page-btn:hover {
            background-color: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .featured-section {
            background: var(--color-card);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .featured-card {
            background: var(--color-bg);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .featured-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .featured-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 8px;
            margin-bottom: 16px;
        }
        .featured-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .featured-card p {
            font-size: 15px;
            color: var(--color-text-muted);
            margin-bottom: 0;
        }
        .topic-scroll-section {
            padding: 56px 0;
        }
        .topic-scroll-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-scroll-card {
            background: var(--color-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .topic-scroll-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .topic-scroll-card-img {
            width: 100%;
            height: 150px;
            object-fit: cover;
        }
        .topic-scroll-card-body {
            padding: 18px 20px;
        }
        .topic-scroll-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .topic-scroll-card-body p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 0;
        }
        .faq-section {
            background: var(--color-bg);
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            transition: background-color var(--transition);
        }
        .faq-question:hover {
            background-color: var(--color-tag-bg);
        }
        .faq-icon {
            flex-shrink: 0;
            font-size: 18px;
            transition: transform var(--transition);
            color: var(--color-primary);
        }
        .faq-item.open .faq-icon {
            transform: rotate(90deg);
        }
        .faq-answer {
            display: none;
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--color-text-muted);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .submit-cta-section {
            background: linear-gradient(135deg, var(--color-secondary) 0%, #1D3A32 100%);
            color: #fff;
        }
        .submit-cta-section .section-title {
            color: #fff;
        }
        .submit-cta-section .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
        }
        .submit-form {
            max-width: 680px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-radius: var(--radius-card);
            padding: 32px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .submit-form label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 6px;
            color: rgba(255, 255, 255, 0.9);
        }
        .submit-form input,
        .submit-form textarea,
        .submit-form select {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 15px;
            margin-bottom: 18px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .submit-form input::placeholder,
        .submit-form textarea::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .submit-form input:focus,
        .submit-form textarea:focus,
        .submit-form select:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(217, 93, 57, 0.3);
        }
        .submit-form textarea {
            min-height: 110px;
            resize: vertical;
        }
        .back-home-section {
            padding: 40px 0;
            text-align: center;
        }
        .site-footer {
            background-color: #1F2933;
            color: #CBD5E1;
            padding: 56px 0 24px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: inline-block;
            margin-bottom: 12px;
        }
        .footer-brand:hover {
            color: #F0A58A;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #94A3B8;
            max-width: 320px;
        }
        .footer-col h3 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: #CBD5E1;
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #F0A58A;
        }
        .footer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-tags span {
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-pill);
            font-size: 13px;
            color: #CBD5E1;
            border: 1px solid rgba(255, 255, 255, 0.12);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: #94A3B8;
        }
        @media (max-width: 1024px) {
            .tool-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .mobile-menu {
                display: none;
            }
            .mobile-menu.open {
                display: flex;
            }
            section {
                padding: 48px 0;
            }
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .cat-hero h1 {
                font-size: 28px;
            }
            .cat-hero-stats {
                gap: 14px;
            }
            .cat-hero-stat {
                padding: 12px 18px;
                min-width: 90px;
            }
            .cat-hero-stat-num {
                font-size: 22px;
            }
            .tool-grid {
                grid-template-columns: 1fr;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .topic-scroll-row {
                grid-template-columns: 1fr;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: left;
            }
        }
        @media (max-width: 520px) {
            .cat-hero h1 {
                font-size: 24px;
            }
            .section-title {
                font-size: 22px;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                width: 100%;
                justify-content: center;
            }
            .cat-hero-stats {
                gap: 10px;
            }
            .cat-hero-stat {
                padding: 10px 14px;
                min-width: 75px;
            }
            .cat-hero-stat-num {
                font-size: 18px;
            }
            .submit-form {
                padding: 20px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #D95D39;
            --color-primary-hover: #B94A2B;
            --color-secondary: #2F5D50;
            --color-bg: #FAF6F0;
            --color-card: #FFFFFF;
            --color-border: #E7DED3;
            --color-text: #1F2933;
            --color-text-muted: #6B7280;
            --color-tag-bg: #FBEDE8;
            --color-tag-text: #B94A2B;
            --radius-card: 12px;
            --radius-btn: 12px;
            --radius-pill: 999px;
            --radius-input: 10px;
            --shadow-card: 0 8px 24px rgba(31,41,51,0.06);
            --shadow-card-hover: 0 12px 32px rgba(31,41,51,0.10);
            --shadow-btn: 0 6px 16px rgba(217,93,57,0.24);
            --transition: 0.22s ease;
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', Arial, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            margin: 0;
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--color-secondary);
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), opacity var(--transition);
        }
        a:hover {
            color: var(--color-primary);
            text-decoration: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            -webkit-tap-highlight-color: transparent;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(217,93,57,0.45);
            outline-offset: 2px;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(250,246,240,0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border);
            padding-top: 14px;
            padding-bottom: 14px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--color-text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .brand:hover {
            color: var(--color-primary);
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
            color: #fff;
            border-radius: 10px;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 26px;
        }
        .nav-desktop a {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background-color: var(--color-primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
            border-radius: 2px;
        }
        .nav-desktop a:hover::after,
        .nav-desktop a.active::after {
            transform: scaleX(1);
        }
        .nav-desktop a.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--color-border);
            border-radius: 10px;
            background: var(--color-card);
            color: var(--color-text);
            font-size: 22px;
            line-height: 1;
            transition: background-color var(--transition), border-color var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--color-primary);
            background-color: var(--color-tag-bg);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 8px;
            padding: 16px 0 8px;
            border-top: 1px solid var(--color-border);
            margin-top: 12px;
        }
        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 10px;
            font-weight: 500;
            color: var(--color-text);
            background: var(--color-card);
            border: 1px solid var(--color-border);
            transition: background-color var(--transition), color var(--transition), border-color var(--transition);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            background-color: var(--color-tag-bg);
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        main {
            flex: 1 0 auto;
        }
        section {
            padding: 64px 0;
            background: var(--color-bg);
        }
        section:nth-of-type(even) {
            background: #FFFFFF;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text);
            margin-bottom: 16px;
        }
        h1 {
            font-size: 36px;
            letter-spacing: 0.01em;
        }
        h2 {
            font-size: 28px;
        }
        h3 {
            font-size: 20px;
        }
        p {
            margin-bottom: 16px;
        }
        .badge-soft {
            display: inline-block;
            padding: 6px 14px;
            background-color: var(--color-tag-bg);
            color: var(--color-tag-text);
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            margin-right: 8px;
            margin-bottom: 8px;
        }
        .btn-primary {
            background-color: var(--color-primary);
            border: none;
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-weight: 500;
            box-shadow: var(--shadow-btn);
            transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        .btn-primary:hover {
            background-color: var(--color-primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(217,93,57,0.30);
        }
        .btn-outline-primary {
            border: 2px solid var(--color-primary);
            color: var(--color-primary);
            background: transparent;
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-weight: 500;
            transition: background-color var(--transition), color var(--transition), border-color var(--transition);
        }
        .btn-outline-primary:hover {
            background-color: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .btn-outline-secondary {
            border: 2px solid var(--color-secondary);
            color: var(--color-secondary);
            background: transparent;
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-weight: 500;
            transition: background-color var(--transition), color var(--transition), border-color var(--transition);
        }
        .btn-outline-secondary:hover {
            background-color: var(--color-secondary);
            color: #fff;
            border-color: var(--color-secondary);
        }
        .chip {
            display: inline-block;
            padding: 8px 18px;
            background-color: var(--color-card);
            color: var(--color-text);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
            margin: 0 8px 8px 0;
        }
        .chip:hover {
            background-color: var(--color-tag-bg);
            color: var(--color-primary);
            border-color: var(--color-primary);
            text-decoration: none;
        }
        .filter-toolbar {
            background: #FFFFFF;
            padding: 24px 0;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .toolbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .filter-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .btn-filter {
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--color-bg);
            color: var(--color-text-muted);
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--color-border);
            transition: all var(--transition);
        }
        .btn-filter.active,
        .btn-filter:hover {
            background-color: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .sort-select {
            width: auto;
            min-width: 160px;
            border-radius: var(--radius-input);
            border: 1px solid var(--color-border);
            padding: 8px 16px;
            background-color: var(--color-card);
            color: var(--color-text);
        }
        .resource-card {
            background: var(--color-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            height: 100%;
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            border: 1px solid var(--color-border);
        }
        .resource-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary);
        }
        .resource-card .card-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .resource-card .card-body {
            padding: 20px;
        }
        .resource-card .card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .resource-card .card-text {
            color: var(--color-text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .resource-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .resource-card .badge-soft {
            font-size: 12px;
            padding: 4px 10px;
            margin: 0;
        }
        .resource-card .card-link {
            color: var(--color-secondary);
            font-weight: 500;
        }
        .resource-card .card-link:hover {
            color: var(--color-primary);
        }
        .pagination-wrap {
            margin-top: 40px;
            display: flex;
            justify-content: center;
        }
        .pagination .page-link {
            color: var(--color-text);
            border: 1px solid var(--color-border);
            border-radius: 8px;
            margin: 0 4px;
            padding: 8px 14px;
            transition: all var(--transition);
        }
        .pagination .page-link:hover {
            background-color: var(--color-tag-bg);
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .pagination .page-item.active .page-link {
            background-color: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
        }
        .editor-pick {
            background: #FFFFFF;
        }
        .editor-pick img {
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }
        .related-topics {
            background: var(--color-bg);
        }
        .horizontal-scroll {
            display: flex;
            gap: 24px;
            overflow-x: auto;
            padding-bottom: 16px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .topic-card {
            flex: 0 0 320px;
            min-width: 280px;
            background: var(--color-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            scroll-snap-align: start;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .topic-card .topic-img {
            height: 160px;
            background-size: cover;
            background-position: center;
        }
        .topic-card .topic-body {
            padding: 20px;
        }
        .topic-card .topic-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .topic-card .topic-text {
            color: var(--color-text-muted);
            font-size: 14px;
            line-height: 1.6;
        }
        .faq-section {
            background: #FFFFFF;
        }
        .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .accordion-button {
            background-color: var(--color-card);
            color: var(--color-text);
            font-weight: 600;
            padding: 18px 24px;
            border: none;
            box-shadow: none;
        }
        .accordion-button:not(.collapsed) {
            background-color: var(--color-tag-bg);
            color: var(--color-primary);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--color-primary);
        }
        .accordion-button::after {
            filter: invert(50%);
        }
        .accordion-body {
            padding: 18px 24px;
            color: var(--color-text-muted);
            background-color: var(--color-card);
        }
        .cta-card {
            background: var(--color-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 40px;
            border: 1px solid var(--color-border);
        }
        .form-control,
        .form-select {
            border-radius: var(--radius-input);
            border: 1px solid var(--color-border);
            padding: 12px 16px;
            color: var(--color-text);
        }
        .form-control:focus,
        .form-select:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(217,93,57,0.15);
        }
        .back-home {
            background: var(--color-bg);
            padding: 48px 0;
        }
        .site-footer {
            background-color: #1F2933;
            color: #D1D5DB;
            padding: 64px 0 32px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            color: #FFFFFF;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
            display: block;
        }
        .footer-brand:hover {
            color: var(--color-primary);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #9CA3AF;
            max-width: 360px;
        }
        .footer-col h3 {
            color: #FFFFFF;
            font-size: 16px;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: #D1D5DB;
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--color-primary);
        }
        .footer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-tags span {
            background: rgba(255,255,255,0.08);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            color: #D1D5DB;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #9CA3AF;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            h1 { font-size: 30px; }
            h2 { font-size: 24px; }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-menu {
                display: none;
            }
            .mobile-menu.open {
                display: flex;
            }
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            section {
                padding: 48px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .toolbar-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-card {
                padding: 24px;
            }
            h1 { font-size: 28px; }
            h2 { font-size: 22px; }
        }
        @media (max-width: 520px) {
            .resource-card .card-img {
                height: 140px;
            }
            .horizontal-scroll {
                gap: 16px;
            }
            .topic-card {
                flex: 0 0 85%;
                min-width: 0;
            }
            .pagination .page-link {
                padding: 6px 10px;
                font-size: 13px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #D95D39;
            --color-primary-hover: #B94A2B;
            --color-secondary: #2F5D50;
            --color-bg: #FAF6F0;
            --color-card: #FFFFFF;
            --color-border: #E7DED3;
            --color-text: #1F2933;
            --color-text-muted: #6B7280;
            --color-tag-bg: #FBEDE8;
            --color-tag-text: #B94A2B;
            --radius-card: 12px;
            --radius-btn: 12px;
            --radius-pill: 999px;
            --radius-input: 10px;
            --shadow-card: 0 8px 24px rgba(31, 41, 51, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(31, 41, 51, 0.10);
            --shadow-btn: 0 6px 16px rgba(217, 93, 57, 0.24);
            --transition: 0.22s ease;
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', Arial, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            margin: 0;
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--color-secondary);
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), opacity var(--transition), border-color var(--transition), box-shadow var(--transition);
        }
        a:hover {
            color: var(--color-primary);
            text-decoration: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            -webkit-tap-highlight-color: transparent;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(217, 93, 57, 0.45);
            outline-offset: 2px;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }
        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(250, 246, 240, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border);
            padding-top: 14px;
            padding-bottom: 14px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--color-text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .brand:hover {
            color: var(--color-primary);
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
            color: #fff;
            border-radius: 10px;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 26px;
        }
        .nav-desktop a {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background-color: var(--color-primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
            border-radius: 2px;
        }
        .nav-desktop a:hover::after,
        .nav-desktop a.active::after {
            transform: scaleX(1);
        }
        .nav-desktop a.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--color-border);
            border-radius: 10px;
            background: var(--color-card);
            color: var(--color-text);
            font-size: 22px;
            line-height: 1;
            transition: background-color var(--transition), border-color var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--color-primary);
            background-color: var(--color-tag-bg);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 8px;
            padding: 16px 0 8px;
            border-top: 1px solid var(--color-border);
            margin-top: 12px;
        }
        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 10px;
            font-weight: 500;
            color: var(--color-text);
            background: var(--color-card);
            border: 1px solid var(--color-border);
            transition: background-color var(--transition), color var(--transition), border-color var(--transition);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            background-color: var(--color-tag-bg);
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        /* Category Hero */
        .category-hero {
            position: relative;
            padding: 72px 0 64px;
            background-image: linear-gradient(rgba(31, 41, 51, 0.72), rgba(31, 41, 51, 0.72)), url('/assets/images/0a130338da5cf05d.webp');
            background-size: cover;
            background-position: center;
            color: #fff;
            text-align: center;
        }
        .category-hero .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            color: #fff;
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            margin-bottom: 20px;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        .category-hero h1 {
            font-size: 38px;
            line-height: 1.3;
            font-weight: 700;
            margin-bottom: 18px;
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
            text-shadow: 0 2px 12px rgba(0,0,0,0.3);
        }
        .category-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.9);
            max-width: 720px;
            margin: 0 auto 28px;
        }
        .btn-primary-cta {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            border: none;
            box-shadow: var(--shadow-btn);
            display: inline-block;
            transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
            margin-top: 10px;
        }
        .btn-primary-cta:hover {
            background: linear-gradient(135deg, var(--color-primary-hover), var(--color-primary-hover));
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(217, 93, 57, 0.35);
        }
        /* Generic Section */
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: #fff;
        }
        .section-header {
            margin-bottom: 36px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text);
            position: relative;
            padding-left: 16px;
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            bottom: 8px;
            width: 4px;
            background: var(--color-primary);
            border-radius: 4px;
        }
        .section-subtitle {
            color: var(--color-text-muted);
            font-size: 16px;
            max-width: 680px;
        }
        /* Badges */
        .badge-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            background: var(--color-tag-bg);
            color: var(--color-tag-text);
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            margin: 0 8px 8px 0;
            transition: background-color var(--transition), color var(--transition);
            border: 1px solid transparent;
        }
        .badge-tag:hover {
            background: #f8ddd4;
            color: #9a3e24;
            border-color: #f0c5b8;
        }
        .badge-cat {
            display: inline-block;
            padding: 4px 12px;
            background: var(--color-tag-bg);
            color: var(--color-tag-text);
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .badge-free {
            display: inline-block;
            padding: 4px 10px;
            background: #E8F5E9;
            color: #2E7D32;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
        }
        /* Toolbar */
        .filter-toolbar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: 12px;
            padding: 16px 20px;
            margin-bottom: 40px;
            box-shadow: var(--shadow-card);
        }
        .filter-select {
            padding: 10px 16px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            background: #fff;
            min-width: 150px;
            font-size: 14px;
            color: var(--color-text);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .filter-select:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(217, 93, 57, 0.15);
        }
        .sort-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-left: auto;
        }
        .sort-btn {
            padding: 8px 16px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-pill);
            background: #fff;
            color: var(--color-text-muted);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
        }
        .sort-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-tag-bg);
        }
        .sort-btn.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
        }
        /* Resource Cards */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .resource-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            display: flex;
            flex-direction: column;
        }
        .resource-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary);
        }
        .resource-thumb {
            height: 170px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .resource-thumb .badge-free {
            position: absolute;
            top: 12px;
            left: 12px;
        }
        .resource-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .resource-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .resource-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 16px;
            flex: 1;
        }
        .resource-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 16px;
        }
        .resource-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .resource-actions {
            display: flex;
            gap: 10px;
        }
        .btn-outline-secondary {
            background: transparent;
            border: 1px solid var(--color-secondary);
            color: var(--color-secondary);
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-weight: 500;
            font-size: 14px;
            transition: all var(--transition);
        }
        .btn-outline-secondary:hover {
            background: rgba(47, 93, 80, 0.08);
            border-color: var(--color-secondary);
            color: var(--color-secondary);
        }
        .btn-sm-primary {
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-weight: 600;
            font-size: 14px;
            transition: background-color var(--transition), box-shadow var(--transition);
        }
        .btn-sm-primary:hover {
            background: var(--color-primary-hover);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .view-more-wrapper {
            text-align: center;
            margin-top: 40px;
        }
        .btn-view-more {
            background: #fff;
            border: 2px solid var(--color-secondary);
            color: var(--color-secondary);
            border-radius: var(--radius-pill);
            padding: 10px 28px;
            font-weight: 600;
            transition: all var(--transition);
        }
        .btn-view-more:hover {
            background: var(--color-secondary);
            color: #fff;
        }
        /* Featured Editor */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .featured-card {
            display: flex;
            gap: 20px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition);
            padding: 16px;
            align-items: center;
        }
        .featured-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }
        .featured-img {
            width: 40%;
            min-width: 140px;
            border-radius: 10px;
            overflow: hidden;
            aspect-ratio: 4/3;
        }
        .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .featured-content {
            flex: 1;
        }
        .featured-content h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .featured-content p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 12px;
        }
        /* Topic Slider */
        .topic-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .topic-img {
            height: 160px;
            background-size: cover;
            background-position: center;
        }
        .topic-body {
            padding: 20px;
        }
        .topic-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .topic-body p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 12px;
        }
        /* FAQ */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item.active {
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            text-align: left;
            font-weight: 600;
            font-size: 16px;
            color: var(--color-text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }
        .faq-arrow {
            font-size: 22px;
            color: var(--color-primary);
            transition: transform var(--transition);
        }
        .faq-item.active .faq-arrow {
            transform: rotate(90deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background: #fefcf9;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        .faq-answer p {
            margin: 0;
            padding: 0 22px 20px;
            color: var(--color-text-muted);
            font-size: 15px;
            line-height: 1.8;
        }
        /* Submit CTA */
        .submit-cta {
            background: linear-gradient(135deg, rgba(47, 93, 80, 0.06), rgba(217, 93, 57, 0.06));
            border: 1px solid rgba(47, 93, 80, 0.15);
            border-radius: 16px;
            padding: 40px;
            text-align: center;
        }
        .submit-cta h2 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .submit-cta p {
            color: var(--color-text-muted);
            margin-bottom: 24px;
        }
        .submit-form {
            max-width: 540px;
            margin: 0 auto;
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .submit-form input {
            flex: 1;
            min-width: 200px;
            padding: 12px 18px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-input);
            background: #fff;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .submit-form input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(217, 93, 57, 0.15);
        }
        /* Return */
        .return-home {
            text-align: center;
            padding: 10px 0 40px;
        }
        /* Footer */
        .site-footer {
            background: #1F2933;
            color: rgba(255,255,255,0.75);
            padding: 48px 0 24px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand {
            display: block;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand:hover {
            color: var(--color-primary);
        }
        .footer-desc {
            color: rgba(255,255,255,0.65);
            font-size: 14px;
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-col h3 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255,255,255,0.7);
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--color-primary);
        }
        .footer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-tags span {
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.75);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255,255,255,0.55);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-menu {
                display: none;
            }
            .mobile-menu.open {
                display: flex;
            }
            .category-hero {
                padding: 48px 0 40px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .section {
                padding: 48px 0;
            }
            .section-alt {
                padding: 48px 0;
            }
            .resource-grid {
                grid-template-columns: 1fr;
            }
            .featured-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .featured-img {
                width: 100%;
                min-width: auto;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
            }
            .sort-group {
                margin-left: 0;
                justify-content: flex-start;
            }
            .filter-select {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 26px;
            }
            .brand {
                font-size: 17px;
            }
            .brand-mark {
                width: 28px;
                height: 28px;
                font-size: 15px;
            }
            .section-title {
                font-size: 24px;
            }
            .submit-cta {
                padding: 24px 18px;
            }
            .submit-form {
                flex-direction: column;
            }
        }