/* roulang page: index */
:root {
            --primary: #E63E5C;
            --primary-dark: #c92f4a;
            --primary-light: rgba(230, 62, 92, 0.08);
            --secondary: #1F3A32;
            --secondary-light: #2c5447;
            --bg: #FBF7F4;
            --bg-card: #FFFFFF;
            --text: #2b2b2b;
            --text-light: #6b6b6b;
            --text-weak: #999999;
            --border: rgba(0, 0, 0, 0.06);
            --border-strong: rgba(0, 0, 0, 0.15);
            --amber: #E8A23D;
            --success: #34C77B;
            --warning: #F2994A;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 18px;
            --shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 12px 48px rgba(31, 58, 50, 0.14);
            --font-base: 'PingFang SC', 'Hiragino Sans GB', 'Source Han Sans SC', 'Noto Sans CJK SC', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
            --font-display: 'Source Han Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --container: 1200px;
            --section-padding: 72px 24px;
            --transition: 0.2s ease;
            --gap: 24px;
        }

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

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

        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            overflow-x: hidden;
        }

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

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

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

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

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

        .section {
            padding: var(--section-padding);
        }

        .section:nth-child(even) {
            background-color: #ffffff;
        }

        .section:nth-child(odd) {
            background-color: var(--bg);
        }

        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 48px;
        }

        .section-header .eyebrow {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--secondary);
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            cursor: pointer;
            transition: all var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
            text-decoration: none;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(230, 62, 92, 0.3);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(230, 62, 92, 0.35);
        }

        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: 0 2px 8px rgba(230, 62, 92, 0.3);
        }

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

        .btn-secondary:hover {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: scale(1.02);
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        .btn-light {
            background-color: #fff;
            color: var(--secondary);
            border-color: #fff;
        }

        .btn-light:hover {
            background-color: var(--bg);
            border-color: #fff;
            color: var(--secondary);
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            background-color: var(--primary-light);
            color: var(--primary);
            transition: all var(--transition);
        }

        .tag:hover {
            background-color: var(--primary);
            color: #fff;
        }

        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            background-color: var(--amber);
            color: #fff;
        }

        .badge-green {
            background-color: var(--success);
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(251, 247, 244, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-display);
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 1px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .main-nav a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            text-decoration: none;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

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

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

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            background-color: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.5px;
            border: 2px solid var(--primary);
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(230, 62, 92, 0.35);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: 4px;
            transition: background-color var(--transition);
        }

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

        .hamburger span {
            width: 24px;
            height: 2px;
            background-color: var(--secondary);
            border-radius: 2px;
            transition: all var(--transition);
            display: block;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Hero */
        .hero {
            padding: 80px 24px;
            background-color: var(--bg);
            position: relative;
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: center;
        }

        .hero-inner {
            display: flex;
            align-items: center;
            gap: 56px;
            position: relative;
            z-index: 2;
        }

        .hero-content {
            flex: 1;
            max-width: 580px;
        }

        .hero-content .eyebrow {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 3px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .hero-content h1 {
            font-family: var(--font-display);
            font-size: 48px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--secondary);
            letter-spacing: 1px;
            margin-bottom: 20px;
        }

        .hero-content .hero-subtitle {
            font-size: 18px;
            color: var(--text-light);
            line-height: 1.85;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .hero-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }

        .hero-stat {
            text-align: left;
        }

        .hero-stat .number {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            font-family: var(--font-display);
        }

        .hero-stat .label {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 2px;
        }

        .hero-visual {
            flex: 1;
            max-width: 520px;
            position: relative;
        }

        .hero-visual .hero-bg-img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            position: relative;
            z-index: 1;
        }

        .hero-visual::before {
            content: '';
            position: absolute;
            top: -16px;
            right: -16px;
            width: 100%;
            height: 100%;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, var(--primary-light) 0%, transparent 60%);
            z-index: 0;
        }

        .hero-floating-badge {
            position: absolute;
            bottom: 24px;
            left: -24px;
            z-index: 3;
            background-color: #fff;
            padding: 16px 20px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-hover);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .hero-floating-badge .live-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--success);
            animation: pulse-dot 1.5s infinite;
        }

        .hero-floating-badge .text {
            font-size: 14px;
            font-weight: 600;
            color: var(--secondary);
        }

        .hero-floating-badge .sub {
            font-size: 12px;
            color: var(--text-weak);
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(52, 199, 123, 0.5);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(52, 199, 123, 0);
            }
        }

        /* Quick categories */
        .quick-cats {
            padding: 56px 24px;
            background-color: #fff;
        }

        .quick-cats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
        }

        .quick-cat-card {
            display: block;
            padding: 28px 24px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            background-color: var(--bg-card);
            transition: all var(--transition);
            text-decoration: none;
            position: relative;
            overflow: hidden;
        }

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

        .quick-cat-card .icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 16px;
        }

        .quick-cat-card h3 {
            font-family: var(--font-display);
            font-size: 18px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
            transition: color var(--transition);
        }

        .quick-cat-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            transition: color var(--transition);
        }

        .quick-cat-card .arrow {
            position: absolute;
            top: 28px;
            right: 24px;
            font-size: 18px;
            color: var(--primary);
            opacity: 0;
            transform: translateX(-8px);
            transition: all var(--transition);
        }

        .quick-cat-card:hover .arrow {
            opacity: 1;
            transform: translateX(0);
        }

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

        /* Data showcase */
        .data-showcase {
            padding: var(--section-padding);
            background-color: var(--bg);
        }

        .data-showcase-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
        }

        .data-card {
            text-align: center;
            padding: 32px 20px;
            border-radius: var(--radius);
            background-color: #fff;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }

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

        .data-card .number {
            font-size: 42px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            font-family: var(--font-display);
            letter-spacing: 1px;
            margin-bottom: 6px;
        }

        .data-card .number .unit {
            font-size: 20px;
            font-weight: 600;
            color: var(--amber);
        }

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

        /* Core solutions */
        .core-solutions {
            padding: var(--section-padding);
            background-color: #fff;
        }

        .solution-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 32px;
            border-bottom: 1px solid var(--border);
            padding-bottom: 16px;
        }

        .solution-tab {
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            cursor: pointer;
            border: 1px solid transparent;
            transition: all var(--transition);
            background: none;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .solution-tab:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .solution-tab.active {
            color: #fff;
            background-color: var(--primary);
            border-color: var(--primary);
            font-weight: 600;
        }

        .solution-tab:focus-visible {
            outline: 3px solid rgba(230, 62, 92, 0.3);
            outline-offset: 2px;
        }

        .solution-panel {
            display: none;
            gap: 48px;
            align-items: flex-start;
        }

        .solution-panel.active {
            display: flex;
            animation: fadeInPanel 0.4s ease;
        }

        @keyframes fadeInPanel {
            from {
                opacity: 0;
                transform: translateY(12px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .solution-panel .panel-text {
            flex: 1.2;
        }

        .solution-panel .panel-text h3 {
            font-family: var(--font-display);
            font-size: 24px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .solution-panel .panel-text p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .solution-panel .panel-text ul {
            list-style: none;
            padding: 0;
        }

        .solution-panel .panel-text ul li {
            padding: 8px 0;
            padding-left: 28px;
            position: relative;
            font-size: 15px;
            color: var(--text);
            line-height: 1.7;
        }

        .solution-panel .panel-text ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 16px;
            width: 12px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        .solution-panel .panel-visual {
            flex: 1;
            max-width: 420px;
        }

        .solution-panel .panel-visual img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }

        /* Scene matrix */
        .scene-matrix {
            padding: var(--section-padding);
            background-color: var(--bg);
        }

        .scene-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .scene-tag {
            padding: 14px 24px;
            border-radius: 30px;
            background-color: #fff;
            border: 1px solid var(--border);
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            cursor: default;
            transition: all var(--transition);
            letter-spacing: 0.5px;
        }

        .scene-tag:hover {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(230, 62, 92, 0.3);
        }

        .scene-tag .icon {
            margin-right: 6px;
        }

        /* Tech advantages */
        .tech-adv {
            padding: var(--section-padding);
            background-color: #fff;
        }

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

        .tech-card {
            padding: 32px 24px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            background-color: var(--bg-card);
            transition: all var(--transition);
        }

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

        .tech-card .icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 14px;
        }

        .tech-card h3 {
            font-family: var(--font-display);
            font-size: 17px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .tech-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.75;
        }

        .tech-card .highlight {
            color: var(--primary);
            font-weight: 600;
        }

        /* Brand intro */
        .brand-intro {
            padding: var(--section-padding);
            background-color: var(--bg);
        }

        .brand-intro-inner {
            display: flex;
            gap: 56px;
            align-items: center;
        }

        .brand-intro-text {
            flex: 1.2;
        }

        .brand-intro-text h2 {
            font-family: var(--font-display);
            font-size: 30px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .brand-intro-text p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.9;
            margin-bottom: 14px;
        }

        .brand-intro-visual {
            flex: 1;
            max-width: 440px;
        }

        .brand-intro-visual img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hover);
        }

        /* Workflow */
        .workflow {
            padding: var(--section-padding);
            background-color: #fff;
        }

        .workflow-steps {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
            position: relative;
        }

        .workflow-steps::before {
            content: '';
            position: absolute;
            top: 28px;
            left: 8%;
            right: 8%;
            height: 2px;
            background-color: var(--border);
            z-index: 0;
        }

        .workflow-step {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .workflow-step .circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background-color: #fff;
            border: 2px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 auto 12px;
            transition: all var(--transition);
        }

        .workflow-step:hover .circle {
            background-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230, 62, 92, 0.35);
        }

        .workflow-step h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 4px;
        }

        .workflow-step p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.6;
        }

        /* Cases */
        .cases {
            padding: var(--section-padding);
            background-color: var(--bg);
        }

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

        .case-card {
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            background-color: #fff;
            transition: all var(--transition);
            text-decoration: none;
            display: block;
        }

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

        .case-card .case-img {
            height: 200px;
            object-fit: cover;
            transition: transform var(--transition);
            width: 100%;
        }

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

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

        .case-card .case-body .tag-row {
            display: flex;
            gap: 8px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .case-card .case-body h3 {
            font-family: var(--font-display);
            font-size: 17px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .case-card .case-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .case-card .case-body .case-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .case-card .case-body .case-link:hover {
            color: var(--primary-dark);
        }

        /* Content strategy */
        .content-strategy {
            padding: var(--section-padding);
            background-color: #fff;
        }

        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
            align-items: flex-start;
        }

        .strategy-left {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .strategy-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 20px 24px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            background-color: var(--bg-card);
            transition: all var(--transition);
        }

        .strategy-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }

        .strategy-item .num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            flex-shrink: 0;
            font-family: var(--font-display);
            min-width: 40px;
        }

        .strategy-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 4px;
        }

        .strategy-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        .strategy-right img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hover);
        }

        /* Equipment */
        .equipment {
            padding: var(--section-padding);
            background-color: var(--bg);
        }

        .equipment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
        }

        .equip-card {
            padding: 24px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            background-color: #fff;
            transition: all var(--transition);
            text-align: center;
        }

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

        .equip-card .equip-icon {
            font-size: 32px;
            margin-bottom: 10px;
        }

        .equip-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 6px;
        }

        .equip-card p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.65;
        }

        /* Industry insights */
        .insights {
            padding: var(--section-padding);
            background-color: #fff;
        }

        .insights-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .insight-item {
            display: flex;
            gap: 20px;
            padding: 20px 24px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            background-color: var(--bg-card);
            transition: all var(--transition);
            text-decoration: none;
            align-items: center;
        }

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

        .insight-item .date {
            font-size: 13px;
            color: var(--text-weak);
            font-weight: 500;
            flex-shrink: 0;
            min-width: 90px;
            text-align: center;
            background-color: var(--primary-light);
            padding: 6px 12px;
            border-radius: var(--radius-sm);
        }

        .insight-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 2px;
            line-height: 1.4;
            flex: 1;
        }

        .insight-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.65;
            flex: 2;
        }

        .insight-item .read-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            flex-shrink: 0;
        }

        /* Compliance */
        .compliance {
            padding: var(--section-padding);
            background-color: var(--bg);
        }

        .compliance-inner {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
        }

        .compliance-card {
            padding: 28px 24px;
            border-radius: var(--radius);
            background-color: #fff;
            border-left: 4px solid var(--success);
            transition: all var(--transition);
        }

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

        .compliance-card:nth-child(2) {
            border-left-color: var(--amber);
        }

        .compliance-card:nth-child(3) {
            border-left-color: var(--primary);
        }

        .compliance-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .compliance-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.75;
        }

        /* Training */
        .training {
            padding: var(--section-padding);
            background-color: #fff;
        }

        .training-inner {
            display: flex;
            gap: 48px;
            align-items: center;
        }

        .training-text {
            flex: 1.2;
        }

        .training-text h2 {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .training-text p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .training-text ul {
            list-style: none;
            padding: 0;
            margin-bottom: 20px;
        }

        .training-text ul li {
            padding: 6px 0;
            padding-left: 24px;
            position: relative;
            font-size: 15px;
            color: var(--text);
        }

        .training-text ul li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 6px;
            color: var(--success);
            font-weight: 700;
            font-size: 14px;
        }

        .training-visual img {
            width: 100%;
            max-width: 400px;
            height: 280px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hover);
        }

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

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--secondary);
            transition: all var(--transition);
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
            letter-spacing: 0.3px;
        }

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

        .faq-question:focus-visible {
            outline: 3px solid rgba(230, 62, 92, 0.3);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            transition: all var(--transition);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 0;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 0 24px;
        }

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

        .faq-answer p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.85;
            padding-left: 4px;
            border-left: 3px solid var(--primary);
            padding-left: 16px;
        }

        /* CTA */
        .cta-section {
            padding: 72px 24px;
            background-color: var(--secondary);
            color: #fff;
            text-align: center;
        }

        .cta-section h2 {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 1px;
            line-height: 1.4;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        .cta-section .btn {
            font-size: 16px;
            padding: 16px 32px;
        }

        /* Subscribe */
        .subscribe {
            padding: 56px 24px;
            background-color: var(--bg);
        }

        .subscribe-inner {
            max-width: 600px;
            margin: 0 auto;
            text-align: center;
        }

        .subscribe-inner h2 {
            font-family: var(--font-display);
            font-size: 26px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        .subscribe-inner p {
            font-size: 15px;
            color: var(--text-light);
            margin-bottom: 24px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
        }

        .subscribe-form input[type="email"] {
            flex: 1;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-strong);
            font-size: 15px;
            color: var(--text);
            transition: all var(--transition);
            background-color: #fff;
            min-width: 0;
        }

        .subscribe-form input[type="email"]:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 62, 92, 0.12);
        }

        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-weak);
        }

        .subscribe-form .btn {
            flex-shrink: 0;
            padding: 14px 24px;
            white-space: nowrap;
        }

        /* Footer */
        .site-footer {
            background-color: var(--secondary);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 24px 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
            font-size: 22px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            padding: 4px 0;
            transition: all var(--transition);
            text-decoration: none;
        }

        .footer-col a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

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

        .footer-subscribe input {
            flex: 1;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background-color: rgba(255, 255, 255, 0.05);
            color: #fff;
            font-size: 14px;
            transition: all var(--transition);
            min-width: 0;
        }

        .footer-subscribe input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 62, 92, 0.2);
        }

        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-subscribe button {
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            background-color: var(--primary);
            color: #fff;
            border: none;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            font-size: 14px;
            font-family: inherit;
        }

        .footer-subscribe button:hover {
            background-color: var(--primary-dark);
            box-shadow: 0 4px 14px rgba(230, 62, 92, 0.4);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .footer-bottom .links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* Mobile nav drawer */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 70px;
            left: 0;
            right: 0;
            background-color: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-hover);
            padding: 16px 0;
            z-index: 999;
            flex-direction: column;
        }

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

        .mobile-drawer a {
            display: block;
            padding: 14px 24px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            transition: all var(--transition);
            text-decoration: none;
            border-left: 3px solid transparent;
        }

        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            color: var(--primary);
            background-color: var(--primary-light);
            border-left-color: var(--primary);
        }

        .mobile-drawer .nav-cta {
            margin: 12px 24px;
            display: inline-flex;
            text-align: center;
            justify-content: center;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-inner {
                gap: 36px;
            }
            .hero-content h1 {
                font-size: 36px;
            }
            .quick-cats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-showcase-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .workflow-steps {
                grid-template-columns: repeat(3, 1fr);
                gap: 24px;
            }
            .workflow-steps::before {
                display: none;
            }
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tech-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .equipment-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .insight-item {
                flex-wrap: wrap;
            }
            .insight-item .date {
                min-width: auto;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .strategy-grid {
                grid-template-columns: 1fr;
            }
            .strategy-right img {
                max-height: 280px;
                object-fit: cover;
            }
            .brand-intro-inner {
                flex-direction: column;
                gap: 24px;
            }
            .brand-intro-visual {
                max-width: 100%;
            }
            .training-inner {
                flex-direction: column;
                gap: 24px;
            }
            .training-visual img {
                max-width: 100%;
                width: 100%;
                height: auto;
                max-height: 260px;
                object-fit: cover;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero {
                padding: 48px 16px;
                min-height: auto;
            }
            .hero-inner {
                flex-direction: column;
                gap: 32px;
            }
            .hero-content {
                max-width: 100%;
                text-align: center;
            }
            .hero-content h1 {
                font-size: 32px;
            }
            .hero-content .hero-subtitle {
                font-size: 16px;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-stats {
                justify-content: center;
            }
            .hero-stat {
                text-align: center;
            }
            .hero-visual {
                max-width: 100%;
            }
            .hero-visual .hero-bg-img {
                height: 240px;
            }
            .hero-floating-badge {
                left: 16px;
                bottom: 12px;
                padding: 12px 16px;
            }
            .section {
                padding: 48px 16px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .quick-cats-grid {
                grid-template-columns: 1fr;
            }
            .data-showcase-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-card .number {
                font-size: 32px;
            }
            .solution-tabs {
                gap: 6px;
            }
            .solution-tab {
                padding: 8px 14px;
                font-size: 13px;
            }
            .solution-panel.active {
                flex-direction: column;
            }
            .solution-panel .panel-visual {
                max-width: 100%;
            }
            .solution-panel .panel-visual img {
                height: 200px;
            }
            .scene-tag {
                padding: 10px 16px;
                font-size: 13px;
            }
            .tech-grid {
                grid-template-columns: 1fr;
            }
            .workflow-steps {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
            .equipment-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .insight-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .insight-item p {
                flex: none;
            }
            .compliance-inner {
                grid-template-columns: 1fr;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form .btn {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }
            .footer-bottom .links {
                justify-content: center;
            }
            .strategy-item {
                padding: 16px 18px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 26px;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            .data-showcase-grid {
                grid-template-columns: 1fr;
            }
            .workflow-steps {
                grid-template-columns: 1fr;
            }
            .equipment-grid {
                grid-template-columns: 1fr;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .btn {
                padding: 12px 20px;
                font-size: 14px;
            }
            .footer-grid {
                gap: 16px;
            }
        }

        .skip-link {
            position: absolute;
            top: -100%;
            left: 16px;
            background-color: var(--primary);
            color: #fff;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            z-index: 2000;
            transition: top 0.3s ease;
            font-weight: 600;
            text-decoration: none;
        }

        .skip-link:focus {
            top: 16px;
        }

/* roulang page: category2 */
:root {
            --primary: #E63E5C;
            --primary-dark: #c92f4a;
            --primary-light: rgba(230, 62, 92, 0.08);
            --secondary: #1F3A32;
            --secondary-light: #2c5447;
            --bg: #FBF7F4;
            --bg-card: #FFFFFF;
            --text: #2b2b2b;
            --text-light: #6b6b6b;
            --text-weak: #999999;
            --border: rgba(0, 0, 0, 0.06);
            --border-strong: rgba(0, 0, 0, 0.15);
            --amber: #E8A23D;
            --success: #34C77B;
            --warning: #F2994A;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 18px;
            --shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 12px 48px rgba(31, 58, 50, 0.14);
            --font-base: 'PingFang SC', 'Hiragino Sans GB', 'Source Han Sans SC', 'Noto Sans CJK SC', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
            --font-display: 'Source Han Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --container: 1200px;
            --section-padding: 72px 24px;
            --transition: 0.2s ease;
            --gap: 24px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--section-padding);
        }
        .section:nth-child(even) {
            background-color: #ffffff;
        }
        .section:nth-child(odd) {
            background-color: var(--bg);
        }
        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 48px;
        }
        .section-header .eyebrow {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--secondary);
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }
        .section-header p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            cursor: pointer;
            transition: all var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
            text-decoration: none;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(230, 62, 92, 0.3);
            outline-offset: 2px;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(230, 62, 92, 0.35);
        }
        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: 0 2px 8px rgba(230, 62, 92, 0.3);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: scale(1.02);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .btn-light {
            background-color: #fff;
            color: var(--secondary);
            border-color: #fff;
        }
        .btn-light:hover {
            background-color: var(--bg);
            border-color: #fff;
            color: var(--secondary);
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }
        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
            gap: 6px;
        }
        .btn-block {
            display: flex;
            width: 100%;
        }
        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            background-color: var(--primary-light);
            color: var(--primary);
            transition: all var(--transition);
        }
        .tag:hover {
            background-color: var(--primary);
            color: #fff;
        }
        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            background-color: var(--primary-light);
            color: var(--primary);
        }
        .card {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background-color: var(--bg-card);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .card-img-wrap {
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background-color: #f0ebe7;
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .card-body {
            padding: 20px 22px 22px;
        }
        .card-title {
            font-family: var(--font-display);
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--secondary);
            margin-bottom: 10px;
        }
        .card-text {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-weak);
        }
        .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .card-link {
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .card-link::after {
            content: '→';
            transition: transform var(--transition);
        }
        .card-link:hover::after {
            transform: translateX(4px);
        }
        .breadcrumb-section {
            padding: 28px 24px 16px;
            background-color: var(--bg);
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-light);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--text-weak);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        .category-hero {
            padding: 48px 24px 56px;
            background-color: var(--bg);
            border-bottom: 1px solid var(--border);
        }
        .category-hero .inner {
            max-width: var(--container);
            margin: 0 auto;
        }
        .category-hero h1 {
            font-family: var(--font-display);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--secondary);
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }
        .category-hero .lead {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-light);
            max-width: 780px;
            margin-bottom: 24px;
        }
        .category-hero .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        .category-hero .stat-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .category-hero .stat-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
        }
        .category-hero .stat-label {
            font-size: 13px;
            color: var(--text-weak);
        }
        .article-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
        }
        .article-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--gap);
        }
        .article-list-item {
            display: flex;
            gap: 20px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background-color: var(--bg-card);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            overflow: hidden;
            padding: 16px;
        }
        .article-list-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .article-list-item .thumb {
            flex-shrink: 0;
            width: 180px;
            aspect-ratio: 16 / 10;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background-color: #f0ebe7;
        }
        .article-list-item .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .article-list-item:hover .thumb img {
            transform: scale(1.05);
        }
        .article-list-item .info {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .article-list-item .info h3 {
            font-family: var(--font-display);
            font-size: 17px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--secondary);
            margin-bottom: 8px;
        }
        .article-list-item .info p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.65;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-list-item .info .meta {
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .article-list-item .info .meta a {
            font-weight: 600;
            font-size: 14px;
            color: var(--primary);
        }
        .article-list-item .info .meta a:hover {
            color: var(--primary-dark);
        }
        .horizontal-scroll {
            display: grid;
            grid-auto-flow: column;
            grid-auto-columns: minmax(300px, 360px);
            gap: var(--gap);
            overflow-x: auto;
            padding-bottom: 16px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .horizontal-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .horizontal-scroll::-webkit-scrollbar-track {
            background: transparent;
        }
        .horizontal-scroll::-webkit-scrollbar-thumb {
            background: var(--border-strong);
            border-radius: 3px;
        }
        .horizontal-scroll .card {
            scroll-snap-align: start;
            min-width: 100%;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-top: 16px;
        }
        .tag-cloud a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 24px;
            font-size: 14px;
            font-weight: 500;
            background-color: #fff;
            color: var(--text-light);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .tag-cloud a:hover {
            background-color: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .expand-text {
            max-width: 860px;
            margin: 0 auto;
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
        }
        .expand-text h3 {
            font-family: var(--font-display);
            font-size: 22px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 16px;
            margin-top: 32px;
        }
        .expand-text h3:first-child {
            margin-top: 0;
        }
        .expand-text p {
            margin-bottom: 16px;
        }
        .expand-text ul {
            list-style: none;
            padding: 0;
            margin: 16px 0;
        }
        .expand-text ul li {
            padding-left: 28px;
            position: relative;
            margin-bottom: 12px;
            color: var(--text-light);
        }
        .expand-text ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--primary);
        }
        .cta-banner {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 60%, #3d6b5a 100%);
            border-radius: var(--radius-lg);
            padding: 56px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background-color: rgba(230, 62, 92, 0.12);
            pointer-events: none;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -15%;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background-color: rgba(232, 162, 61, 0.1);
            pointer-events: none;
        }
        .cta-banner h2 {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 1;
        }
        .cta-banner .btn {
            position: relative;
            z-index: 1;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 18px 0;
            transition: all var(--transition);
        }
        .faq-item:first-of-type {
            border-top: 1px solid var(--border);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-weight: 600;
            font-size: 17px;
            color: var(--secondary);
            line-height: 1.5;
            padding: 4px 0;
            user-select: none;
            border: none;
            background: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-base);
        }
        .faq-question:focus-visible {
            outline: 3px solid rgba(230, 62, 92, 0.25);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .faq-question .icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            transition: all var(--transition);
        }
        .faq-item.active .faq-question .icon {
            background-color: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-light);
            padding-left: 0;
        }
        .faq-item.active .faq-answer {
            max-height: 600px;
            padding: 12px 0 4px 0;
        }
        .faq-item.active {
            border-left: 3px solid var(--primary);
            padding-left: 16px;
        }
        .subscribe-box {
            background-color: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 48px 40px;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }
        .subscribe-box h2 {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 12px;
        }
        .subscribe-box p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
        }
        .subscribe-form input[type="email"] {
            flex: 1;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-strong);
            background-color: #fff;
            font-size: 15px;
            color: var(--text);
            transition: all var(--transition);
            min-width: 0;
        }
        .subscribe-form input[type="email"]:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 62, 92, 0.12);
        }
        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-weak);
        }
        .site-header {
            background-color: #fff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 14px 0;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .site-header .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-display);
            font-size: 22px;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: 0.5px;
            text-decoration: none;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .site-header .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, #f06a83 100%);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
            padding: 0;
            list-style: none;
            flex-wrap: wrap;
        }
        .main-nav a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            text-decoration: none;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
            background-color: var(--primary-light);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background-color: #fff;
            cursor: pointer;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background-color: var(--secondary);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--primary);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .site-footer {
            background-color: var(--secondary);
            color: rgba(255, 255, 255, 0.85);
            padding: 56px 24px 28px;
            margin-top: 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 40px;
            max-width: var(--container);
            margin: 0 auto;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .site-footer .footer-brand .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-display);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            text-decoration: none;
            margin-bottom: 14px;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 320px;
        }
        .site-footer .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            margin-bottom: 10px;
            transition: color var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: #fff;
        }
        .site-footer .footer-col p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 8px;
        }
        .footer-subscribe input[type="email"] {
            flex: 1;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background-color: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
            transition: all var(--transition);
            min-width: 0;
        }
        .footer-subscribe input[type="email"]::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-subscribe input[type="email"]:focus {
            outline: none;
            border-color: var(--primary);
            background-color: rgba(255, 255, 255, 0.12);
        }
        .footer-subscribe button {
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            border: none;
            background-color: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .footer-subscribe button:hover {
            background-color: var(--primary-dark);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            max-width: var(--container);
            margin: 0 auto;
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom .links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom .links a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: color var(--transition);
            font-size: 13px;
        }
        .footer-bottom .links a:hover {
            color: #fff;
        }
        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        @media (max-width: 1024px) {
            .article-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
            .site-footer .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-padding: 48px 20px;
                --gap: 18px;
            }
            .site-header {
                padding: 10px 0;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                background-color: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow);
                padding: 12px 20px 20px;
                display: none;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease;
            }
            .main-nav.open {
                display: flex;
                max-height: 500px;
            }
            .main-nav a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 16px;
            }
            .article-card-grid {
                grid-template-columns: 1fr;
            }
            .article-list-grid {
                grid-template-columns: 1fr;
            }
            .article-list-item {
                flex-direction: column;
            }
            .article-list-item .thumb {
                width: 100%;
                aspect-ratio: 16 / 9;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .category-hero .lead {
                font-size: 15px;
            }
            .category-hero .hero-stats {
                gap: 20px;
            }
            .category-hero .stat-num {
                font-size: 22px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .cta-banner {
                padding: 40px 24px;
            }
            .cta-banner h2 {
                font-size: 26px;
            }
            .subscribe-box {
                padding: 32px 20px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form button {
                width: 100%;
            }
            .footer-subscribe {
                flex-direction: column;
            }
            .footer-subscribe button {
                width: 100%;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .site-footer .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-brand {
                grid-column: 1;
            }
            .article-list-item {
                padding: 12px;
            }
            .category-hero {
                padding: 36px 20px 40px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
        }

/* roulang page: category1 */
:root {
      --primary: #E63E5C;
      --primary-dark: #c92f4a;
      --primary-light: rgba(230, 62, 92, 0.08);
      --secondary: #1F3A32;
      --secondary-light: #2c5447;
      --bg: #FBF7F4;
      --bg-card: #FFFFFF;
      --text: #2b2b2b;
      --text-light: #6b6b6b;
      --text-weak: #999999;
      --border: rgba(0, 0, 0, 0.06);
      --border-strong: rgba(0, 0, 0, 0.15);
      --amber: #E8A23D;
      --success: #34C77B;
      --warning: #F2994A;
      --radius: 14px;
      --radius-sm: 8px;
      --radius-lg: 18px;
      --shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
      --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.12);
      --shadow-lg: 0 12px 48px rgba(31, 58, 50, 0.14);
      --font-base: 'PingFang SC', 'Hiragino Sans GB', 'Source Han Sans SC', 'Noto Sans CJK SC', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
      --font-display: 'Source Han Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
      --container: 1200px;
      --section-padding: 72px 24px;
      --transition: 0.2s ease;
      --gap: 24px;
    }
    html {
      scroll-behavior: smooth;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    body {
      font-family: var(--font-base);
      font-size: 16px;
      line-height: 1.75;
      color: var(--text);
      background-color: var(--bg);
      overflow-x: hidden;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      color: var(--primary);
      text-decoration: none;
      transition: color var(--transition), background-color var(--transition), border-color var(--transition);
    }
    a:hover {
      color: var(--primary-dark);
    }
    button, input {
      font-family: inherit;
      font-size: inherit;
    }
    .container {
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 24px;
    }
    .section {
      padding: var(--section-padding);
      background-color: var(--bg);
    }
    .section:nth-child(even) {
      background-color: #ffffff;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px;
    }
    .section-header .eyebrow {
      display: inline-block;
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      letter-spacing: 2px;
      text-transform: uppercase;
      margin-bottom: 12px;
    }
    .section-header h2 {
      font-family: var(--font-display);
      font-size: 32px;
      font-weight: 700;
      line-height: 1.35;
      color: var(--secondary);
      letter-spacing: 0.5px;
      margin-bottom: 14px;
    }
    .section-header p {
      font-size: 16px;
      color: var(--text-light);
      line-height: 1.8;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 15px;
      letter-spacing: 0.5px;
      cursor: pointer;
      transition: all var(--transition);
      border: 2px solid transparent;
      white-space: nowrap;
      text-decoration: none;
    }
    .btn:focus-visible {
      outline: 3px solid rgba(230, 62, 92, 0.3);
      outline-offset: 2px;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }
    .btn-primary:hover {
      background-color: var(--primary-dark);
      border-color: var(--primary-dark);
      color: #fff;
      transform: scale(1.02);
      box-shadow: 0 6px 20px rgba(230, 62, 92, 0.35);
    }
    .btn-primary:active {
      transform: scale(0.98);
      box-shadow: 0 2px 8px rgba(230, 62, 92, 0.3);
    }
    .btn-secondary {
      background-color: transparent;
      color: var(--primary);
      border-color: var(--primary);
    }
    .btn-secondary:hover {
      background-color: var(--primary-light);
      color: var(--primary-dark);
      border-color: var(--primary-dark);
      transform: scale(1.02);
    }
    .btn-secondary:active {
      transform: scale(0.98);
    }
    .btn-light {
      background-color: #fff;
      color: var(--secondary);
      border-color: #fff;
    }
    .btn-light:hover {
      background-color: var(--bg);
      border-color: #fff;
      color: var(--secondary);
      transform: scale(1.02);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    }
    .tag {
      display: inline-block;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.5px;
      background-color: var(--primary-light);
      color: var(--primary);
      transition: all var(--transition);
      text-decoration: none;
    }
    .tag:hover {
      background-color: var(--primary);
      color: #fff;
    }
    .badge {
      display: inline-block;
      padding: 3px 10px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.5px;
      background-color: var(--primary-light);
      color: var(--primary);
    }
    /* Header & Navigation */
    .site-header {
      background-color: #ffffff;
      border-bottom: 1px solid var(--border);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 24px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 24px;
      color: var(--secondary);
      text-decoration: none;
      letter-spacing: 1px;
    }
    .logo:hover {
      color: var(--secondary);
    }
    .logo-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      background-color: var(--primary);
      color: #fff;
      border-radius: var(--radius-sm);
      font-size: 20px;
      font-weight: 700;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .main-nav a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text);
      text-decoration: none;
      padding: 8px 0;
      position: relative;
      transition: color var(--transition);
    }
    .main-nav a:hover,
    .main-nav a.active {
      color: var(--primary);
    }
    .main-nav a.active::after {
      content: '';
      position: absolute;
      left: 0;
      right: 0;
      bottom: -2px;
      height: 3px;
      background-color: var(--primary);
      border-radius: 2px;
    }
    .nav-toggle {
      display: none;
      background: transparent;
      border: none;
      font-size: 28px;
      color: var(--secondary);
      cursor: pointer;
      padding: 4px;
      line-height: 1;
    }
    .nav-toggle:focus {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }
    @media (max-width: 768px) {
      .main-nav {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background-color: #fff;
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
        gap: 20px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        display: none;
        border-top: 1px solid var(--border);
      }
      .main-nav.open {
        display: flex;
      }
      .main-nav a {
        font-size: 18px;
        width: 100%;
        padding: 8px 0;
      }
      .nav-toggle {
        display: block;
      }
    }
    /* Breadcrumb & Page Hero */
    .page-hero {
      background-color: var(--bg);
      padding: 48px 24px 40px;
    }
    .breadcrumb {
      font-size: 14px;
      color: var(--text-light);
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 6px;
      flex-wrap: wrap;
    }
    .breadcrumb a {
      color: var(--text-light);
      text-decoration: none;
    }
    .breadcrumb a:hover {
      color: var(--primary);
    }
    .breadcrumb span {
      color: var(--text);
      font-weight: 500;
    }
    .page-hero h1 {
      font-family: var(--font-display);
      font-size: 40px;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .page-hero .hero-desc {
      font-size: 17px;
      color: var(--text-light);
      max-width: 800px;
      line-height: 1.8;
      margin: 0;
    }
    /* Article Grid */
    .article-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: var(--gap);
    }
    .article-card {
      background-color: var(--bg-card);
      border-radius: var(--radius);
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      overflow: hidden;
      transition: all var(--transition);
      display: flex;
      flex-direction: column;
    }
    .article-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .card-img {
      width: 100%;
      aspect-ratio: 16/9;
      overflow: hidden;
      position: relative;
    }
    .card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .article-card:hover .card-img img {
      transform: scale(1.04);
    }
    .card-body {
      padding: 20px 20px 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .card-body .tag {
      align-self: flex-start;
      margin-bottom: 12px;
    }
    .card-body h3 {
      font-family: var(--font-display);
      font-size: 20px;
      font-weight: 700;
      line-height: 1.4;
      color: var(--secondary);
      margin-bottom: 10px;
    }
    .card-body h3 a {
      color: var(--secondary);
      text-decoration: none;
      transition: color var(--transition);
    }
    .card-body h3 a:hover {
      color: var(--primary);
    }
    .card-body p {
      font-size: 15px;
      color: var(--text-light);
      line-height: 1.7;
      margin-bottom: 16px;
      flex: 1;
    }
    .meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 14px;
      color: var(--text-weak);
      border-top: 1px solid var(--border);
      padding-top: 14px;
      margin-top: auto;
    }
    .meta a {
      color: var(--primary);
      font-weight: 600;
      text-decoration: none;
    }
    .meta a:hover {
      color: var(--primary-dark);
    }
    .more-wrap {
      text-align: center;
      margin-top: 40px;
    }
    @media (max-width: 768px) {
      .article-grid {
        grid-template-columns: 1fr;
      }
      .page-hero h1 {
        font-size: 32px;
      }
    }
    /* Hot Scroll */
    .hot-scroll-section {
      background-color: #fff;
    }
    .hot-scroll {
      display: flex;
      gap: 20px;
      overflow-x: auto;
      padding-bottom: 16px;
      scroll-snap-type: x mandatory;
      -webkit-overflow-scrolling: touch;
    }
    .hot-scroll::-webkit-scrollbar {
      height: 6px;
    }
    .hot-scroll::-webkit-scrollbar-track {
      background: var(--border);
      border-radius: 3px;
    }
    .hot-scroll::-webkit-scrollbar-thumb {
      background: var(--primary);
      border-radius: 3px;
    }
    .hot-card {
      scroll-snap-align: start;
      min-width: 280px;
      max-width: 300px;
      background-color: var(--bg);
      border-radius: var(--radius);
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      overflow: hidden;
      transition: transform var(--transition), box-shadow var(--transition);
      flex: 0 0 auto;
    }
    .hot-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .hot-card .card-img {
      aspect-ratio: 4/3;
    }
    .hot-card .card-body {
      padding: 16px;
    }
    .hot-card h3 {
      font-size: 16px;
      margin-bottom: 6px;
    }
    .hot-card h3 a {
      color: var(--secondary);
      text-decoration: none;
    }
    .hot-card h3 a:hover {
      color: var(--primary);
    }
    .hot-card p {
      font-size: 14px;
      margin-bottom: 8px;
      color: var(--text-light);
    }
    /* Tag Cloud */
    .tag-cloud-section {
      background-color: var(--bg);
    }
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      justify-content: center;
      max-width: 800px;
      margin: 0 auto;
    }
    .tag-cloud .tag {
      font-size: 15px;
      padding: 8px 18px;
      border-radius: 30px;
      background-color: #fff;
      border: 1px solid var(--border);
      color: var(--text-light);
      transition: all var(--transition);
    }
    .tag-cloud .tag:hover {
      background-color: var(--primary);
      color: #fff;
      border-color: var(--primary);
      transform: translateY(-2px);
    }
    /* Expand Section */
    .expand-section {
      background-color: #fff;
    }
    .expand-content {
      max-width: 860px;
      margin: 0 auto;
    }
    .expand-content p {
      font-size: 16px;
      line-height: 1.9;
      color: var(--text-light);
      margin-bottom: 20px;
    }
    .expand-content p:last-child {
      margin-bottom: 0;
    }
    /* Data Section */
    .data-section {
      background-color: var(--secondary);
      color: #fff;
    }
    .data-section .section-header h2 {
      color: #fff;
    }
    .data-section .section-header p {
      color: rgba(255,255,255,0.7);
    }
    .data-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: var(--gap);
      max-width: 1000px;
      margin: 0 auto;
    }
    .data-item {
      text-align: center;
      padding: 32px 16px;
      background-color: rgba(255,255,255,0.06);
      border-radius: var(--radius);
      border: 1px solid rgba(255,255,255,0.1);
      transition: background-color var(--transition);
    }
    .data-item:hover {
      background-color: rgba(255,255,255,0.1);
    }
    .data-num {
      display: block;
      font-size: 40px;
      font-weight: 700;
      font-family: var(--font-display);
      color: var(--amber);
      line-height: 1.2;
      margin-bottom: 8px;
    }
    .data-label {
      font-size: 15px;
      color: rgba(255,255,255,0.8);
    }
    @media (max-width: 768px) {
      .data-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }
    }
    @media (max-width: 520px) {
      .data-grid {
        grid-template-columns: 1fr;
      }
    }
    /* FAQ */
    .faq-section {
      background-color: var(--bg);
    }
    .faq-accordion {
      max-width: 820px;
      margin: 0 auto;
    }
    .faq-item {
      border-bottom: 1px solid var(--border);
      position: relative;
      background-color: #fff;
      border-radius: 0;
      transition: all var(--transition);
    }
    .faq-item:first-child {
      border-top-left-radius: var(--radius-sm);
      border-top-right-radius: var(--radius-sm);
    }
    .faq-item:last-child {
      border-bottom-left-radius: var(--radius-sm);
      border-bottom-right-radius: var(--radius-sm);
      border-bottom: none;
    }
    .faq-item.active {
      border-left: 3px solid var(--primary);
    }
    .faq-question {
      background: transparent;
      border: none;
      width: 100%;
      text-align: left;
      padding: 20px 24px;
      font-size: 17px;
      font-weight: 700;
      color: var(--secondary);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      transition: color var(--transition);
    }
    .faq-question:hover {
      color: var(--primary);
    }
    .faq-question:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: -2px;
    }
    .faq-question::after {
      content: '+';
      font-size: 24px;
      font-weight: 400;
      color: var(--text-weak);
      transition: transform var(--transition);
    }
    .faq-item.active .faq-question::after {
      transform: rotate(45deg);
      color: var(--primary);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0 24px;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 24px 20px;
    }
    .faq-answer p {
      font-size: 15px;
      color: var(--text-light);
      line-height: 1.8;
      margin: 0;
    }
    /* CTA */
    .cta-section {
      background-color: #fff;
    }
    .cta-box {
      background-color: var(--secondary);
      color: #fff;
      padding: 48px 32px;
      border-radius: var(--radius-lg);
      text-align: center;
      box-shadow: var(--shadow-lg);
      max-width: 900px;
      margin: 0 auto;
    }
    .cta-box h2 {
      font-family: var(--font-display);
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 12px;
      color: #fff;
    }
    .cta-box p {
      font-size: 17px;
      color: rgba(255,255,255,0.8);
      margin-bottom: 28px;
      line-height: 1.8;
    }
    /* Footer */
    .site-footer {
      background-color: var(--secondary);
      color: rgba(255,255,255,0.75);
      padding: 56px 24px 0;
      font-size: 15px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      padding-bottom: 40px;
    }
    .footer-brand .logo {
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      color: rgba(255,255,255,0.65);
      margin: 0;
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }
    .footer-col a {
      display: block;
      color: rgba(255,255,255,0.65);
      text-decoration: none;
      margin-bottom: 12px;
      transition: color var(--transition);
      font-size: 14px;
    }
    .footer-col a:hover {
      color: var(--primary);
    }
    .footer-subscribe {
      display: flex;
      gap: 10px;
      margin-top: 8px;
    }
    .footer-subscribe input {
      flex: 1;
      background-color: rgba(255,255,255,0.1);
      border: 1px solid rgba(255,255,255,0.2);
      border-radius: var(--radius-sm);
      padding: 10px 14px;
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: border-color var(--transition), box-shadow var(--transition);
    }
    .footer-subscribe input::placeholder {
      color: rgba(255,255,255,0.4);
    }
    .footer-subscribe input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(230,62,92,0.25);
    }
    .footer-subscribe button {
      background-color: var(--primary);
      color: #fff;
      border: none;
      border-radius: var(--radius-sm);
      padding: 10px 20px;
      font-weight: 600;
      cursor: pointer;
      transition: background-color var(--transition);
      white-space: nowrap;
    }
    .footer-subscribe button:hover {
      background-color: var(--primary-dark);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.1);
      padding: 20px 0;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      font-size: 13px;
      color: rgba(255,255,255,0.5);
    }
    .footer-bottom .links {
      display: flex;
      gap: 20px;
    }
    .footer-bottom .links a {
      color: rgba(255,255,255,0.5);
      text-decoration: none;
      transition: color var(--transition);
    }
    .footer-bottom .links a:hover {
      color: #fff;
    }
    @media (max-width: 992px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
      .footer-brand {
        grid-column: 1 / -1;
      }
    }
    @media (max-width: 576px) {
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }

/* roulang page: category3 */
:root {
            --primary: #E63E5C;
            --primary-dark: #c92f4a;
            --primary-light: rgba(230, 62, 92, 0.08);
            --secondary: #1F3A32;
            --secondary-light: #2c5447;
            --bg: #FBF7F4;
            --bg-card: #FFFFFF;
            --text: #2b2b2b;
            --text-light: #6b6b6b;
            --text-weak: #999999;
            --border: rgba(0, 0, 0, 0.06);
            --border-strong: rgba(0, 0, 0, 0.15);
            --amber: #E8A23D;
            --success: #34C77B;
            --warning: #F2994A;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 18px;
            --shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 12px 48px rgba(31, 58, 50, 0.14);
            --font-base: 'PingFang SC', 'Hiragino Sans GB', 'Source Han Sans SC', 'Noto Sans CJK SC', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
            --font-display: 'Source Han Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --container: 1200px;
            --section-padding: 72px 24px;
            --transition: 0.2s ease;
            --gap: 24px;
        }

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

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

        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            overflow-x: hidden;
        }

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

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

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

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

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

        .section {
            padding: var(--section-padding);
        }

        .section:nth-child(even) {
            background-color: #ffffff;
        }

        .section:nth-child(odd) {
            background-color: var(--bg);
        }

        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 48px;
        }

        .section-header .eyebrow {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--secondary);
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            cursor: pointer;
            transition: all var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
            text-decoration: none;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(230, 62, 92, 0.3);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(230, 62, 92, 0.35);
        }

        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: 0 2px 8px rgba(230, 62, 92, 0.3);
        }

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

        .btn-secondary:hover {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: scale(1.02);
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        .btn-light {
            background-color: #fff;
            color: var(--secondary);
            border-color: #fff;
        }

        .btn-light:hover {
            background-color: var(--bg);
            border-color: #fff;
            color: var(--secondary);
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            background-color: var(--primary-light);
            color: var(--primary);
            transition: all var(--transition);
        }

        .tag:hover {
            background-color: var(--primary);
            color: #fff;
        }

        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            background-color: var(--primary-light);
            color: var(--primary);
        }

        /* Header */
        .site-header {
            background-color: #ffffff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 24px;
            max-width: var(--container);
            margin: 0 auto;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-display);
            font-size: 22px;
            font-weight: 700;
            color: var(--secondary);
            text-decoration: none;
            letter-spacing: 1px;
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--secondary);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .main-nav a {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            text-decoration: none;
            padding: 6px 0;
            position: relative;
            transition: color var(--transition);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: width var(--transition);
            border-radius: 1px;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--primary);
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background-color var(--transition);
        }

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

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--secondary);
            border-radius: 2px;
            transition: all var(--transition);
        }

        /* Breadcrumb */
        .breadcrumb-wrapper {
            background-color: #ffffff;
            padding: 16px 24px;
            border-bottom: 1px solid var(--border);
        }

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

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

        .breadcrumb li:not(:last-child)::after {
            content: '›';
            color: var(--text-weak);
            font-size: 16px;
        }

        .breadcrumb a {
            color: var(--text-light);
            text-decoration: none;
            transition: color var(--transition);
        }

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

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

        /* Page H1 */
        .page-hero {
            background-color: #ffffff;
            padding: 56px 24px 48px;
        }

        .page-hero-inner {
            max-width: var(--container);
            margin: 0 auto;
        }

        .page-hero h1 {
            font-family: var(--font-display);
            font-size: 40px;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .page-hero .lead {
            font-size: 17px;
            color: var(--text-light);
            line-height: 1.8;
            max-width: 820px;
            margin-bottom: 0;
        }

        /* Article Listing */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: var(--gap);
        }

        .article-card {
            background-color: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all var(--transition);
            height: 100%;
        }

        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(230, 62, 92, 0.2);
        }

        .article-card .card-img-wrapper {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background-color: #f0ebe7;
        }

        .article-card .card-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

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

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

        .article-card .card-tag {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.5px;
            margin-bottom: 10px;
            display: inline-block;
        }

        .article-card h3 {
            font-family: var(--font-display);
            font-size: 18px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.45;
            margin-bottom: 10px;
        }

        .article-card h3 a {
            color: var(--secondary);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .article-card .card-summary {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 14px;
        }

        .article-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-weak);
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }

        .article-card .card-meta .date {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .article-card .card-meta .read-link {
            font-weight: 600;
            color: var(--primary);
            font-size: 13px;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition);
        }

        .article-card .card-meta .read-link:hover {
            color: var(--primary-dark);
        }

        /* Hot recommendations horizontal scroll */
        .hot-scroll {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding-bottom: 16px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
        }

        .hot-scroll::-webkit-scrollbar {
            height: 6px;
        }

        .hot-scroll::-webkit-scrollbar-track {
            background: transparent;
        }

        .hot-scroll::-webkit-scrollbar-thumb {
            background-color: var(--border-strong);
            border-radius: 3px;
        }

        .hot-card {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background-color: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .hot-card .hot-img {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            background-color: #f0ebe7;
        }

        .hot-card .hot-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

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

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

        .hot-card .hot-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--amber);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

        .hot-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .hot-card h4 a {
            color: var(--secondary);
            text-decoration: none;
            transition: color var(--transition);
        }

        .hot-card h4 a:hover {
            color: var(--primary);
        }

        .hot-card .hot-date {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: auto;
        }

        /* Tag cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .tag-cloud .scene-tag {
            display: inline-block;
            padding: 8px 20px;
            border-radius: 24px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.5px;
            border: 1px solid var(--border-strong);
            background-color: var(--bg-card);
            color: var(--text-light);
            transition: all var(--transition);
            text-decoration: none;
            cursor: pointer;
        }

        .tag-cloud .scene-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* Scene explainer */
        .scene-explainer {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .scene-explainer .text-content h3 {
            font-family: var(--font-display);
            font-size: 24px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .scene-explainer .text-content p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.85;
            margin-bottom: 14px;
        }

        .scene-explainer .visual-content {
            background-color: var(--secondary);
            border-radius: var(--radius-lg);
            padding: 32px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .scene-explainer .visual-content .stat-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .scene-explainer .visual-content .stat-item {
            text-align: center;
        }

        .scene-explainer .visual-content .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--amber);
            font-family: var(--font-display);
            letter-spacing: 1px;
            margin-bottom: 4px;
        }

        .scene-explainer .visual-content .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.5px;
        }

        /* CTA band */
        .cta-band {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
        }

        .cta-band h3 {
            font-family: var(--font-display);
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .cta-band p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            max-width: 600px;
            margin: 0 auto 28px;
        }

        .cta-band .btn-light {
            background-color: #fff;
            color: var(--primary);
            border-color: #fff;
            font-size: 16px;
            padding: 16px 36px;
        }

        .cta-band .btn-light:hover {
            background-color: var(--bg);
            border-color: #fff;
            color: var(--primary-dark);
            transform: scale(1.03);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 16px;
            cursor: pointer;
            font-weight: 700;
            font-size: 16px;
            color: var(--secondary);
            background: none;
            border: none;
            text-align: left;
            width: 100%;
            transition: all var(--transition);
            font-family: var(--font-base);
            letter-spacing: 0.5px;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            font-size: 18px;
            font-weight: 700;
            transition: all var(--transition);
            margin-left: 12px;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 16px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 16px 20px;
            border-left: 3px solid var(--primary);
            margin-left: 0;
        }

        .faq-item.open {
            background-color: var(--bg-card);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow);
        }

        /* Subscribe section */
        .subscribe-section {
            background-color: var(--secondary);
            padding: 64px 24px;
            color: #fff;
            text-align: center;
        }

        .subscribe-section h3 {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .subscribe-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 500px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            max-width: 480px;
            margin: 0 auto;
            gap: 12px;
        }

        .subscribe-form input {
            flex: 1;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background-color: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 15px;
            outline: none;
            transition: all var(--transition);
            min-width: 0;
        }

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

        .subscribe-form input:focus {
            border-color: var(--amber);
            box-shadow: 0 0 0 3px rgba(232, 162, 61, 0.2);
            background-color: rgba(255, 255, 255, 0.15);
        }

        .subscribe-form button {
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            background-color: var(--amber);
            color: var(--secondary);
            border: none;
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .subscribe-form button:hover {
            background-color: #d18f2e;
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(232, 162, 61, 0.4);
        }

        .subscribe-form button:focus-visible {
            outline: 3px solid rgba(232, 162, 61, 0.4);
            outline-offset: 2px;
        }

        /* Footer */
        .site-footer {
            background-color: var(--secondary);
            color: #fff;
            padding: 56px 24px 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 32px;
            max-width: var(--container);
            margin: 0 auto;
            padding-bottom: 40px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
            font-size: 22px;
        }

        .footer-brand .logo-icon {
            background-color: var(--primary);
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.75;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            line-height: 2;
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .footer-col p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-bottom: 8px;
        }

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

        .footer-subscribe input {
            flex: 1;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background-color: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 13px;
            outline: none;
            min-width: 0;
            transition: all var(--transition);
        }

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

        .footer-subscribe input:focus {
            border-color: var(--amber);
            box-shadow: 0 0 0 3px rgba(232, 162, 61, 0.2);
        }

        .footer-subscribe button {
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            background-color: var(--amber);
            color: var(--secondary);
            border: none;
            font-weight: 700;
            font-size: 13px;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .footer-subscribe button:hover {
            background-color: #d18f2e;
            transform: scale(1.02);
        }

        .footer-subscribe button:focus-visible {
            outline: 3px solid rgba(232, 162, 61, 0.4);
            outline-offset: 2px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            max-width: var(--container);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom .links {
            display: flex;
            gap: 20px;
        }

        .footer-bottom .links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition);
        }

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

        /* More link */
        .view-more-wrapper {
            text-align: center;
            margin-top: 28px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
            }

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

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

        @media (max-width: 768px) {
            .header-inner {
                padding: 12px 16px;
                flex-wrap: nowrap;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                display: none;
                flex-direction: column;
                gap: 0;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: #ffffff;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
                align-items: flex-start;
                gap: 4px;
            }

            .main-nav.mobile-open {
                display: flex;
            }

            .main-nav a {
                padding: 12px 0;
                width: 100%;
                border-bottom: 1px solid var(--border);
                font-size: 16px;
            }

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

            .main-nav a::after {
                display: none;
            }

            .page-hero h1 {
                font-size: 30px;
            }

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

            .article-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .hot-card {
                flex: 0 0 240px;
            }

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

            .cta-band {
                padding: 40px 24px;
            }

            .cta-band h3 {
                font-size: 24px;
            }

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

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

            .subscribe-form button {
                width: 100%;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .footer-bottom .links {
                justify-content: center;
            }

            .scene-explainer .visual-content .stat-row {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .scene-explainer .visual-content .stat-number {
                font-size: 28px;
            }

            .tag-cloud {
                gap: 8px;
            }

            .tag-cloud .scene-tag {
                padding: 6px 14px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-padding: 48px 16px;
                --radius: 12px;
                --radius-lg: 14px;
            }

            .container {
                padding: 0 16px;
            }

            .logo {
                font-size: 18px;
            }

            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
                border-radius: 8px;
            }

            .page-hero {
                padding: 32px 16px 32px;
            }

            .page-hero h1 {
                font-size: 26px;
            }

            .article-card .card-body {
                padding: 16px 16px 18px;
            }

            .hot-card {
                flex: 0 0 220px;
            }

            .cta-band {
                padding: 32px 20px;
            }

            .cta-band h3 {
                font-size: 21px;
            }

            .cta-band .btn-light {
                font-size: 14px;
                padding: 13px 28px;
            }

            .subscribe-section {
                padding: 40px 16px;
            }

            .subscribe-section h3 {
                font-size: 23px;
            }

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

            .footer-subscribe button {
                width: 100%;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #E63E5C;
            --primary-dark: #c92f4a;
            --primary-light: rgba(230, 62, 92, 0.08);
            --secondary: #1F3A32;
            --secondary-light: #2c5447;
            --bg: #FBF7F4;
            --bg-card: #FFFFFF;
            --text: #2b2b2b;
            --text-light: #6b6b6b;
            --text-weak: #999999;
            --border: rgba(0, 0, 0, 0.06);
            --border-strong: rgba(0, 0, 0, 0.15);
            --amber: #E8A23D;
            --success: #34C77B;
            --warning: #F2994A;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 18px;
            --shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 12px 48px rgba(31, 58, 50, 0.14);
            --font-base: 'PingFang SC', 'Hiragino Sans GB', 'Source Han Sans SC', 'Noto Sans CJK SC', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
            --font-display: 'Source Han Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --container: 1200px;
            --section-padding: 72px 24px;
            --transition: 0.2s ease;
            --gap: 24px;
        }

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

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

        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            overflow-x: hidden;
        }

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

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

        .section {
            padding: var(--section-padding);
        }

        .section:nth-child(even) {
            background-color: #ffffff;
        }

        .section:nth-child(odd) {
            background-color: var(--bg);
        }

        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 48px;
        }

        .section-header .eyebrow {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--secondary);
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            cursor: pointer;
            transition: all var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
            text-decoration: none;
            line-height: 1.4;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(230, 62, 92, 0.3);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(230, 62, 92, 0.35);
        }

        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: 0 2px 8px rgba(230, 62, 92, 0.3);
        }

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

        .btn-secondary:hover {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: scale(1.02);
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        .btn-light {
            background-color: #fff;
            color: var(--secondary);
            border-color: #fff;
        }

        .btn-light:hover {
            background-color: var(--bg);
            border-color: #fff;
            color: var(--secondary);
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            background-color: var(--primary-light);
            color: var(--primary);
            transition: all var(--transition);
        }

        .tag:hover {
            background-color: var(--primary);
            color: #fff;
        }

        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            background-color: var(--secondary);
            color: #fff;
        }

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

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 0, 0, 0.1);
        }

        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background-color: #f0ece8;
        }

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

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

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

        .card-date {
            display: block;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 8px;
        }

        .card-title {
            font-family: var(--font-display);
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        .card-text {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.75;
            margin-bottom: 14px;
        }

        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .card-link::after {
            content: '→';
            transition: transform var(--transition);
        }

        .card-link:hover::after {
            transform: translateX(4px);
        }

        /* Header / Navigation */
        .site-header {
            background-color: #fff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
        }

        .nav-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-display);
            font-size: 20px;
            font-weight: 700;
            color: var(--secondary);
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--secondary);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background-color: var(--primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            text-decoration: none;
            transition: all var(--transition);
            white-space: nowrap;
        }

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

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

        .nav-toggle {
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            gap: 5px;
            background: none;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            border-radius: 2px;
            background-color: var(--secondary);
            transition: all 0.3s ease;
        }

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

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-light);
            text-decoration: none;
            transition: color var(--transition);
        }

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

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

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

        /* Category Head */
        .category-head {
            background-color: var(--bg);
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .category-head h1 {
            font-family: var(--font-display);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--secondary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .category-head .lead {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.9;
            max-width: 820px;
        }

        /* Card Grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
        }

        /* Trending Scroll */
        .trending-scroll {
            display: flex;
            gap: var(--gap);
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }

        .trending-scroll::-webkit-scrollbar {
            height: 6px;
        }

        .trending-scroll::-webkit-scrollbar-track {
            background: var(--border);
            border-radius: 3px;
        }

        .trending-scroll::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 3px;
        }

        .trending-item {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background-color: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
        }

        .trending-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 0, 0, 0.1);
        }

        .trending-item .card-img-wrap {
            aspect-ratio: 16 / 9;
        }

        .trending-item .card-body {
            padding: 16px 18px 18px;
        }

        .trending-item .card-title {
            font-size: 16px;
            margin-bottom: 8px;
        }

        .trending-item .card-date {
            font-size: 12px;
        }

        /* Data Strip */
        .data-strip {
            background-color: var(--secondary) !important;
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .data-item {
            text-align: center;
            padding: 20px 16px;
        }

        .data-item .data-number {
            font-family: var(--font-display);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 8px;
        }

        .data-item .data-number .unit {
            font-size: 18px;
            color: var(--amber);
            margin-left: 2px;
        }

        .data-item .data-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.5;
        }

        /* Tag Cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .tag-cloud .tag {
            font-size: 14px;
            padding: 8px 18px;
            border-radius: 24px;
        }

        /* Category About */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .about-text h2 {
            font-family: var(--font-display);
            font-size: 26px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--secondary);
            margin-bottom: 18px;
        }

        .about-text p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.9;
            margin-bottom: 14px;
        }

        .about-side {
            background-color: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 24px;
            box-shadow: var(--shadow);
        }

        .about-side h3 {
            font-family: var(--font-display);
            font-size: 17px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 16px;
        }

        .about-side li {
            list-style: none;
            padding: 10px 0;
            font-size: 14px;
            color: var(--text-light);
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.7;
        }

        .about-side li:last-child {
            border-bottom: none;
        }

        .about-side li::before {
            content: '●';
            color: var(--primary);
            font-size: 10px;
            margin-top: 6px;
            flex-shrink: 0;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #E63E5C 0%, #c92f4a 60%, #a8243e 100%) !important;
        }

        .cta-block {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-block h2 {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 700;
            line-height: 1.4;
            color: #fff;
            margin-bottom: 8px;
        }

        .cta-block p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 18px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            transition: all var(--transition);
            text-align: left;
            width: 100%;
            background: none;
            border: none;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            transition: all var(--transition);
        }

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

        .faq-answer {
            display: none;
            padding: 0 18px 20px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.85;
        }

        .faq-item.open {
            border-left: 3px solid var(--primary);
            background-color: rgba(230, 62, 92, 0.02);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }

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

        /* Footer */
        .site-footer {
            background-color: var(--secondary);
            color: #fff;
            padding: 56px 24px 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
            gap: 40px;
            max-width: var(--container);
            margin: 0 auto;
            padding-bottom: 40px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand .logo:hover {
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
        }

        .footer-col h4 {
            font-family: var(--font-display);
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            padding: 4px 0;
            transition: all var(--transition);
        }

        .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-col p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            margin-bottom: 12px;
        }

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

        .footer-subscribe input {
            flex: 1;
            min-width: 160px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background-color: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: all var(--transition);
        }

        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-subscribe input:focus {
            border-color: var(--primary);
            background-color: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 3px rgba(230, 62, 92, 0.2);
        }

        .footer-subscribe button {
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            background-color: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border: none;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .footer-subscribe button:hover {
            background-color: var(--primary-dark);
            transform: scale(1.03);
            box-shadow: 0 4px 16px rgba(230, 62, 92, 0.4);
        }

        .footer-bottom {
            max-width: var(--container);
            margin: 0 auto;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom .links {
            display: flex;
            gap: 16px;
        }

        .footer-bottom .links a {
            color: rgba(255, 255, 255, 0.45);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .about-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 20px;
            }
            .container {
                padding: 0 20px;
            }
            .nav-bar {
                height: 60px;
                position: relative;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                background-color: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow);
                padding: 8px 20px 16px;
                display: none;
                z-index: 1001;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 12px 12px;
                border-radius: var(--radius-sm);
                font-size: 15px;
            }
            .main-nav a.active {
                background-color: var(--primary-light);
                color: var(--primary);
            }
            .category-head h1 {
                font-size: 28px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-item .data-number {
                font-size: 28px;
            }
            .data-item .data-number .unit {
                font-size: 14px;
            }
            .trending-item {
                flex: 0 0 240px;
            }
            .cta-block {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-block h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: auto;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding: 36px 16px;
            }
            .container {
                padding: 0 16px;
            }
            .logo {
                font-size: 17px;
                gap: 8px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
                border-radius: 8px;
            }
            .category-head {
                padding-top: 32px;
                padding-bottom: 32px;
            }
            .category-head h1 {
                font-size: 24px;
            }
            .category-head .lead {
                font-size: 14px;
            }
            .card-body {
                padding: 16px 16px 18px;
            }
            .card-title {
                font-size: 16px;
            }
            .data-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .trending-item {
                flex: 0 0 200px;
            }
            .footer-subscribe input {
                min-width: 100%;
            }
            .footer-subscribe button {
                width: 100%;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}