/* roulang page: index */
:root {
            --primary: #1B5E3B;
            --primary-hover: #164A2F;
            --secondary: #E8890C;
            --secondary-hover: #C97508;
            --accent: #D9342B;
            --bg-base: #F7F5F0;
            --bg-panel: #FFFFFF;
            --border: #E3DFD3;
            --text-main: #1F2937;
            --text-sub: #5B6472;
            --text-muted: #8A94A3;
            --success: #2E7D32;
            --warning: #E8890C;
            --radius-lg: 12px;
            --radius-sm: 8px;
            --shadow-card: 0px 2px 10px rgba(31,41,55,0.06);
            --shadow-hover: 0px 8px 24px rgba(27,94,59,0.12);
            --font-stack: 'PingFang SC','Microsoft YaHei','Noto Sans SC',-apple-system,BlinkMacSystemFont,sans-serif;
            --section-pad: 64px 0;
            --section-pad-mobile: 36px 0;
            --container-max: 1200px;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-base);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease, border-color 0.3s ease, background-color 0.3s ease;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        button {
            font-family: var(--font-stack);
            cursor: pointer;
            border: none;
            background: none;
        }

        input {
            font-family: var(--font-stack);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

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

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

        .section-dark {
            background: #14201A;
            color: #E5E7EB;
        }

        .section-dark h2,
        .section-dark h3 {
            color: #FFFFFF;
        }

        .section-dark .section-sub {
            color: #A7B0AA;
        }

        .section-title {
            font-size: 28px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-title .highlight {
            color: var(--primary);
        }

        .section-sub {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 32px;
            max-width: 720px;
        }

        .text-center {
            text-align: center;
        }

        .text-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-panel);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(31,41,55,0.04);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(31,41,55,0.1);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

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

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-sub);
            border-radius: 6px;
            transition: color 0.25s ease, background-color 0.25s ease;
            white-space: nowrap;
        }

        .nav-link:hover,
        .nav-link:focus {
            color: var(--primary);
            background-color: rgba(27,94,59,0.06);
        }

        .nav-link.active {
            color: var(--primary);
            background-color: rgba(27,94,59,0.1);
        }

        .nav-chip-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            height: 28px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .nav-chip .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .chip-preheat {
            background-color: #E8EDF0;
            color: #4A5A66;
        }
        .chip-preheat .dot {
            background-color: #6B7F8E;
        }

        .chip-live {
            background-color: #FDF0E6;
            color: #C0392B;
            animation: chipPulse 2s infinite;
        }
        .chip-live .dot {
            background-color: #D9342B;
        }

        .chip-replay {
            background-color: #E9F2EB;
            color: #4A7A5A;
        }
        .chip-replay .dot {
            background-color: #5B8C68;
        }

        @keyframes chipPulse {
            0%, 100% { box-shadow: 0 0 0 0 rgba(217,52,43,0.25); }
            50% { box-shadow: 0 0 0 4px rgba(217,52,43,0.1); }
        }

        .header-cta {
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            text-decoration: none;
            white-space: nowrap;
            cursor: pointer;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(27,94,59,0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.95);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-secondary:hover,
        .btn-secondary:focus {
            background-color: rgba(27,94,59,0.06);
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-accent {
            background-color: var(--secondary);
            color: #fff;
            border: 1px solid var(--secondary);
        }
        .btn-accent:hover,
        .btn-accent:focus {
            background-color: var(--secondary-hover);
            border-color: var(--secondary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(232,137,12,0.25);
        }

        .btn-white-outline {
            background-color: transparent;
            color: #fff;
            border: 1px solid rgba(255,255,255,0.6);
        }
        .btn-white-outline:hover,
        .btn-white-outline:focus {
            background-color: rgba(255,255,255,0.1);
            border-color: #fff;
            color: #fff;
        }

        .btn-sm {
            padding: 8px 14px;
            font-size: 13px;
            border-radius: 6px;
        }

        .btn-lg {
            padding: 16px 28px;
            font-size: 16px;
            border-radius: 10px;
        }

        .hamburger-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: transparent;
            border: 1px solid var(--border);
            transition: background-color 0.3s ease;
            flex-shrink: 0;
        }

        .hamburger-toggle:hover,
        .hamburger-toggle:focus {
            background-color: rgba(27,94,59,0.06);
        }

        .hamburger-toggle .bar {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-main);
            margin: 4px 0;
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        .hamburger-toggle.open .bar:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .hamburger-toggle.open .bar:nth-child(2) {
            opacity: 0;
        }
        .hamburger-toggle.open .bar:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            background: var(--bg-panel);
            border-top: 1px solid var(--border);
            padding: 16px 20px 24px;
            max-height: calc(100vh - 68px);
            overflow-y: auto;
        }

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

        .mobile-menu .nav-chip-group {
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .mobile-menu .nav-link {
            padding: 12px 0;
            font-size: 16px;
            border-bottom: 1px solid var(--border);
            border-radius: 0;
        }
        .mobile-menu .nav-link:last-of-type {
            border-bottom: none;
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background-image: url('/assets/images/5cafb6568df47752.webp');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(20,32,26,0.8) 0%, rgba(27,94,59,0.72) 45%, rgba(20,32,26,0.55) 100%);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .hero-content {
            max-width: 700px;
            padding: 60px 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(232,137,12,0.2);
            border: 1px solid rgba(232,137,12,0.4);
            border-radius: 999px;
            color: #FDEBD3;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }

        .hero-badge .dot {
            width: 7px;
            height: 7px;
            background: var(--secondary);
            border-radius: 50%;
            animation: chipPulse 2s infinite;
        }

        .hero h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.35;
            color: #FFFFFF;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-sub {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(255,255,255,0.85);
            margin-bottom: 32px;
            max-width: 560px;
        }

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

        .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

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

        .hero-stat .stat-num {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.5px;
        }

        .hero-stat .stat-label {
            font-size: 13px;
            color: rgba(255,255,255,0.7);
            margin-top: 2px;
        }

        /* Activity Stage Bar */
        .activity-stage-bar {
            background: var(--bg-panel);
            border-bottom: 1px solid var(--border);
            padding: 28px 0;
        }

        .stage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .stage-card {
            padding: 20px 22px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            background: var(--bg-base);
            display: flex;
            align-items: center;
            gap: 14px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .stage-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }

        .stage-card .stage-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 18px;
        }

        .stage-preheat .stage-icon {
            background: #E8EDF0;
            color: #4A5A66;
        }
        .stage-live .stage-icon {
            background: #FDF0E6;
            color: #C0392B;
        }
        .stage-replay .stage-icon {
            background: #E9F2EB;
            color: #4A7A5A;
        }

        .stage-info h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 2px;
        }

        .stage-info p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        .stage-tag {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 0.3px;
            flex-shrink: 0;
        }

        /* Cards & Grids */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .card-grid.two-col {
            grid-template-columns: repeat(2, 1fr);
        }

        .card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
        }

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

        .card-top-accent-primary {
            border-top: 3px solid var(--primary);
        }
        .card-top-accent-secondary {
            border-top: 3px solid var(--secondary);
        }

        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: rgba(27,94,59,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 14px;
            flex-shrink: 0;
        }

        .card-icon.orange {
            background: rgba(232,137,12,0.1);
            color: var(--secondary-hover);
        }

        .card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.45;
        }

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

        .card .btn {
            margin-top: 14px;
        }

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

        .feature-item {
            padding: 20px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

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

        .feature-item .feature-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(27,94,59,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .feature-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .feature-item p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* Scenario Timeline */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .scenario-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            position: relative;
            box-shadow: var(--shadow-card);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .scenario-card:hover {
            border-color: var(--secondary);
            box-shadow: var(--shadow-hover);
        }

        .scenario-step {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--secondary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .scenario-card h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .scenario-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* Data Demo */
        .data-demo {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }

        .data-demo-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            aspect-ratio: 4/3;
            background: #f0ede5;
        }

        .data-demo-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .data-metrics {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .metric-badge {
            padding: 14px 18px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            text-align: center;
            min-width: 110px;
            flex: 1;
        }

        .metric-badge .metric-num {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
        }

        .metric-badge .metric-label {
            font-size: 12px;
            color: var(--text-sub);
            margin-top: 2px;
        }

        /* Case Cards */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .case-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 22px;
            box-shadow: var(--shadow-card);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .case-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .case-card .case-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(27,94,59,0.1);
            color: var(--primary);
            margin-bottom: 10px;
        }

        .case-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .case-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* Pricing */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            align-items: stretch;
        }

        .price-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
            position: relative;
        }

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

        .price-card.recommended {
            border-color: var(--secondary);
            box-shadow: 0 4px 20px rgba(232,137,12,0.15);
        }
        .price-card.recommended::before {
            content: '推荐方案';
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--secondary);
            color: #fff;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        .price-name {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .price-amount {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            margin-bottom: 4px;
        }
        .price-card.recommended .price-amount {
            color: var(--secondary-hover);
        }

        .price-period {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .price-features {
            list-style: none;
            padding: 0;
            margin: 0 0 20px 0;
            flex: 1;
        }

        .price-features li {
            font-size: 14px;
            color: var(--text-sub);
            padding: 6px 0 6px 22px;
            position: relative;
            line-height: 1.6;
        }

        .price-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--success);
            font-weight: 700;
            font-size: 13px;
            top: 6px;
        }

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

        .review-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 18px;
            box-shadow: var(--shadow-card);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .review-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .review-stars {
            color: var(--secondary);
            font-size: 14px;
            letter-spacing: 2px;
            margin-bottom: 8px;
        }

        .review-text {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .review-author {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 600;
        }

        /* User Kudos Metrics */
        .kudos-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .kudos-item .kudos-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            letter-spacing: -1px;
        }

        .kudos-item .kudos-label {
            font-size: 14px;
            color: var(--text-sub);
            margin-top: 4px;
        }

        .kudos-item .kudos-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            line-height: 1.6;
        }

        /* Brand Intro */
        .brand-intro {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }

        .brand-text h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .brand-text p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 2.0;
            margin-bottom: 12px;
        }

        .brand-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            aspect-ratio: 16/10;
            background: #f0ede5;
        }
        .brand-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Deep Content */
        .deep-content {
            max-width: 860px;
            margin: 0 auto;
        }

        .deep-content h2 {
            font-size: 24px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 18px;
            line-height: 1.4;
        }

        .deep-content p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 2.0;
            margin-bottom: 16px;
            text-align: justify;
        }

        /* News List */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .news-item {
            display: flex;
            gap: 18px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 18px 20px;
            box-shadow: var(--shadow-card);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
            align-items: flex-start;
        }
        .news-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .news-date {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-width: 56px;
            background: rgba(27,94,59,0.06);
            border-radius: var(--radius-sm);
            padding: 8px 6px;
            flex-shrink: 0;
        }

        .news-date .day {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .news-date .month {
            font-size: 12px;
            color: var(--text-sub);
            font-weight: 600;
        }

        .news-info {
            flex: 1;
        }
        .news-info h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            line-height: 1.45;
        }
        .news-info p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .news-info .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.3s ease, color 0.3s ease;
        }
        .news-info .read-more:hover {
            color: var(--primary-hover);
            gap: 7px;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: border-color 0.3s ease;
        }
        .faq-item:hover {
            border-color: var(--primary);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            gap: 12px;
            transition: background-color 0.3s ease, color 0.3s ease;
        }
        .faq-question:hover {
            background-color: rgba(27,94,59,0.03);
            color: var(--primary);
        }
        .faq-question .faq-arrow {
            font-size: 14px;
            color: var(--text-muted);
            transition: transform 0.3s ease, color 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            display: none;
            padding: 0 20px 18px;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

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

        .compliance-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px 18px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
        }

        .compliance-item .comp-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(46,125,50,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--success);
            font-size: 16px;
            flex-shrink: 0;
        }

        .compliance-item h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 2px;
        }
        .compliance-item p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* Partners */
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }

        .partner-item {
            padding: 20px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            letter-spacing: 0.5px;
            min-height: 64px;
            text-align: center;
            opacity: 0.8;
            transition: opacity 0.3s ease, border-color 0.3s ease, color 0.3s ease;
        }
        .partner-item:hover {
            opacity: 1;
            border-color: var(--primary);
            color: var(--primary);
        }

        /* CTA */
        .cta-section {
            background-image: linear-gradient(135deg, rgba(20,32,26,0.92) 0%, rgba(27,94,59,0.88) 60%, rgba(20,32,26,0.9) 100%), url('/assets/images/cf0cd11ab1c36d64.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 60px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255,255,255,0.8);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .cta-actions {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 24px auto 0;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input {
            flex: 1;
            min-width: 200px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255,255,255,0.3);
            background: rgba(255,255,255,0.1);
            color: #fff;
            font-size: 14px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .cta-form input::placeholder {
            color: rgba(255,255,255,0.5);
        }
        .cta-form input:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(232,137,12,0.2);
            outline: none;
        }
        .cta-form .privacy-note {
            width: 100%;
            font-size: 12px;
            color: rgba(255,255,255,0.5);
            margin-top: 8px;
            text-align: center;
        }

        /* Footer */
        .site-footer {
            background: #14201A;
            color: #A7B0AA;
            font-size: 14px;
            line-height: 1.7;
        }

        .footer-top {
            padding: 48px 0 32px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 28px;
        }

        .footer-brand .logo-link {
            margin-bottom: 12px;
        }
        .footer-brand .logo-text {
            color: #fff;
        }
        .footer-brand p {
            font-size: 13px;
            color: #8A94A3;
            line-height: 1.7;
            margin-top: 8px;
            max-width: 240px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #A7B0AA;
            font-size: 13px;
            transition: color 0.3s ease, padding-left 0.3s ease;
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }

        .footer-subscribe p {
            font-size: 13px;
            color: #8A94A3;
            margin-bottom: 12px;
            line-height: 1.7;
        }

        .footer-subscribe .subscribe-form {
            display: flex;
            gap: 6px;
        }
        .footer-subscribe input {
            flex: 1;
            padding: 9px 12px;
            border-radius: 6px;
            border: 1px solid #3A4A42;
            background: rgba(255,255,255,0.06);
            color: #fff;
            font-size: 13px;
            min-width: 0;
        }
        .footer-subscribe input::placeholder {
            color: #6B7F8E;
        }
        .footer-subscribe input:focus {
            border-color: var(--secondary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(232,137,12,0.15);
        }

        .footer-bottom {
            border-top: 1px solid #2A3A30;
            padding: 18px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #6B7F8E;
        }

        .footer-bottom-links {
            display: flex;
            gap: 16px;
            align-items: center;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: #6B7F8E;
            font-size: 13px;
            transition: color 0.3s ease;
        }
        .footer-bottom-links a:hover {
            color: var(--secondary);
        }

        /* Responsive */
        @media screen and (max-width: 1024px) {
            .nav-desktop {
                display: none;
            }
            .nav-chip-group {
                display: none;
            }
            .hamburger-toggle {
                display: flex;
            }
            .header-cta {
                display: none;
            }
            .feature-grid,
            .scenario-grid,
            .case-grid,
            .pricing-grid,
            .compliance-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .kudos-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .partners-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-demo {
                grid-template-columns: 1fr;
            }
            .brand-intro {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
            .stage-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 30px;
            }
        }

        @media screen and (max-width: 768px) {
            .section {
                padding: var(--section-pad-mobile);
            }
            .hero {
                min-height: auto;
                padding: 40px 0;
            }
            .hero h1 {
                font-size: 24px;
            }
            .hero-sub {
                font-size: 14px;
            }
            .hero-stats {
                gap: 18px;
            }
            .hero-stat .stat-num {
                font-size: 20px;
            }
            .card-grid,
            .card-grid.two-col,
            .feature-grid,
            .scenario-grid,
            .case-grid,
            .pricing-grid,
            .compliance-grid,
            .reviews-grid,
            .kudos-grid,
            .partners-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .section-title {
                font-size: 22px;
            }
            .deep-content h2 {
                font-size: 20px;
            }
            .deep-content p {
                font-size: 14px;
                line-height: 1.9;
            }
            .news-item {
                flex-direction: column;
                gap: 10px;
            }
            .news-date {
                flex-direction: row;
                gap: 6px;
                min-width: auto;
                padding: 6px 12px;
                align-items: baseline;
            }
            .news-date .day {
                font-size: 16px;
            }
            .cta-form {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-form input {
                min-width: 0;
            }
            .data-metrics {
                flex-direction: column;
            }
        }

        @media screen and (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .hero h1 {
                font-size: 20px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn-lg {
                padding: 12px 20px;
                font-size: 14px;
            }
            .section-title {
                font-size: 20px;
            }
            .feature-item,
            .scenario-card,
            .case-card,
            .price-card,
            .review-card,
            .compliance-item {
                padding: 16px;
            }
            .card {
                padding: 18px;
            }
            .brand-text p {
                font-size: 14px;
            }
            .kudos-item .kudos-num {
                font-size: 24px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1B5E3B;
            --primary-hover: #164A2F;
            --secondary: #E8890C;
            --secondary-hover: #C97508;
            --accent: #D9342B;
            --bg-base: #F7F5F0;
            --bg-panel: #FFFFFF;
            --border: #E3DFD3;
            --text-main: #1F2937;
            --text-sub: #5B6472;
            --text-muted: #8A94A3;
            --success: #2E7D32;
            --warning: #E8890C;
            --radius-lg: 12px;
            --radius-sm: 8px;
            --shadow-card: 0px 2px 10px rgba(31,41,55,0.06);
            --shadow-hover: 0px 8px 24px rgba(27,94,59,0.12);
            --font-stack: 'PingFang SC','Microsoft YaHei','Noto Sans SC',-apple-system,BlinkMacSystemFont,sans-serif;
            --section-pad: 64px 0;
            --section-pad-mobile: 36px 0;
            --container-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-base);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease, border-color 0.3s ease, background-color 0.3s ease;
        }
        a:hover,
        a:focus {
            color: var(--primary-hover);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        button {
            font-family: var(--font-stack);
            cursor: pointer;
            border: none;
            background: none;
        }
        input {
            font-family: var(--font-stack);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .section {
            padding: var(--section-pad);
        }
        .section-alt {
            background-color: var(--bg-panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-dark {
            background: #14201A;
            color: #E5E7EB;
        }
        .section-dark h2,
        .section-dark h3 {
            color: #FFFFFF;
        }
        .section-dark .section-sub {
            color: #A7B0AA;
        }
        .section-title {
            font-size: 28px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-title .highlight {
            color: var(--primary);
        }
        .section-sub {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 32px;
            max-width: 720px;
        }
        .text-center {
            text-align: center;
        }
        .text-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-panel);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(31,41,55,0.04);
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(31,41,55,0.1);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--primary);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-sub);
            border-radius: 6px;
            transition: color 0.25s ease, background-color 0.25s ease;
            white-space: nowrap;
        }
        .nav-link:hover,
        .nav-link:focus {
            color: var(--primary);
            background-color: rgba(27,94,59,0.06);
        }
        .nav-link.active {
            color: var(--primary);
            background-color: rgba(27,94,59,0.1);
        }
        .header-cta {
            flex-shrink: 0;
            display: flex;
            align-items: center;
        }
        .nav-chip-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            height: 28px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .nav-chip .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            flex-shrink: 0;
        }
        .chip-preheat {
            background-color: #E8EDF0;
            color: #4A5A66;
        }
        .chip-preheat .dot {
            background-color: #7A8A96;
        }
        .chip-live {
            background-color: #FDECEA;
            color: #B3241F;
        }
        .chip-live .dot {
            background-color: var(--accent);
            animation: pulse-dot 1.4s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }
        .chip-replay {
            background-color: #E7F2E8;
            color: #3D6B47;
        }
        .chip-replay .dot {
            background-color: #5C9468;
        }
        .hamburger-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            flex-shrink: 0;
        }
        .hamburger-toggle .bar {
            width: 22px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .mobile-menu {
            display: none;
            background: var(--bg-panel);
            border-top: 1px solid var(--border);
            padding: 16px 20px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu .nav-link {
            padding: 12px 14px;
            border-radius: 6px;
        }
        .mobile-menu .nav-chip-group {
            flex-wrap: wrap;
            margin-bottom: 12px;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: all 0.3s ease;
            letter-spacing: 0.3px;
            text-align: center;
            white-space: nowrap;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(27,94,59,0.25);
        }
        .btn-primary:active {
            background: #0E3520;
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-accent {
            background: var(--secondary);
            color: #fff;
        }
        .btn-accent:hover,
        .btn-accent:focus {
            background: var(--secondary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(232,137,12,0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }
        .btn-outline:hover,
        .btn-outline:focus {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-ghost-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255,255,255,0.6);
        }
        .btn-ghost-light:hover,
        .btn-ghost-light:focus {
            background: rgba(255,255,255,0.12);
            border-color: #fff;
            color: #fff;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb a {
            color: var(--text-sub);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Category Hero / H1 section */
        .cat-hero {
            padding: 48px 0 36px;
            background: var(--bg-panel);
            border-bottom: 1px solid var(--border);
        }
        .cat-hero h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .cat-hero-desc {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-sub);
            max-width: 760px;
            margin-bottom: 0;
        }

        /* Article list cards */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .article-card {
            display: flex;
            gap: 20px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 22px 24px;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-card);
        }
        .article-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .article-card .date-badge {
            flex-shrink: 0;
            width: 58px;
            height: 58px;
            background: var(--bg-base);
            border: 1px solid var(--border);
            border-radius: 8px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            line-height: 1.2;
        }
        .date-badge .day {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
        }
        .date-badge .month {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .article-card .content {
            flex: 1;
            min-width: 0;
        }
        .article-card .tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 8px;
        }
        .tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.3px;
        }
        .tag-primary {
            background-color: rgba(27,94,59,0.1);
            color: var(--primary);
        }
        .tag-secondary {
            background-color: rgba(232,137,12,0.12);
            color: var(--secondary-hover);
        }
        .tag-accent {
            background-color: rgba(217,52,43,0.1);
            color: var(--accent);
        }
        .tag-info {
            background-color: rgba(74,90,102,0.08);
            color: #4A5A66;
        }
        .article-card h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .article-card .summary {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-sub);
            margin-bottom: 10px;
        }
        .article-card .meta-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
        }
        .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .read-more:hover {
            color: var(--primary-hover);
        }

        /* Featured / Highlight cards */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }
        .featured-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-card);
        }
        .featured-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .featured-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .featured-card .body {
            padding: 18px 20px 20px;
        }
        .featured-card h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .featured-card p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .featured-card .tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }
        .featured-card .read-more {
            font-size: 13px;
        }

        /* Stats section */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }
        .stat-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 26px 20px;
            text-align: center;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-card);
        }
        .stat-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }
        .stat-item .num {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
            font-variant-numeric: tabular-nums;
        }
        .stat-item .label {
            font-size: 14px;
            color: var(--text-sub);
            font-weight: 500;
            line-height: 1.6;
        }

        /* Knowledge / excerpt section */
        .knowledge-block {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-left: 4px solid var(--primary);
            border-radius: var(--radius-lg);
            padding: 28px 30px;
            box-shadow: var(--shadow-card);
        }
        .knowledge-block h2 {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.45;
        }
        .knowledge-block p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-sub);
            margin-bottom: 14px;
        }
        .knowledge-block p:last-child {
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
            background: transparent;
            width: 100%;
            text-align: left;
            transition: all 0.3s ease;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .fa-chevron-down {
            font-size: 14px;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            display: none;
            padding: 0 22px 20px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-sub);
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* CTA section */
        .cta-banner {
            background: linear-gradient(135deg, #14201A 0%, #1B5E3B 100%);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
            box-shadow: 0 8px 28px rgba(20,32,26,0.3);
        }
        .cta-banner .cta-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .cta-banner .cta-text p {
            font-size: 15px;
            color: #B8C2BC;
            margin-bottom: 0;
            line-height: 1.7;
            max-width: 520px;
        }
        .cta-banner .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }

        /* Tail note */
        .tail-note {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 22px 26px;
            box-shadow: var(--shadow-card);
            font-size: 14px;
            line-height: 1.85;
            color: var(--text-sub);
        }
        .tail-note .note-title {
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            font-size: 15px;
        }

        /* Footer */
        .site-footer {
            background: #14201A;
            color: #A7B0AA;
            padding: 48px 0 20px;
            margin-top: 0;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .logo-link {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #A7B0AA;
            margin-bottom: 0;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            color: #A7B0AA;
            font-size: 14px;
            transition: color 0.3s ease;
        }
        .footer-col ul a:hover,
        .footer-col ul a:focus {
            color: var(--secondary);
        }
        .footer-subscribe p {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .subscribe-form {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 160px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255,255,255,0.2);
            background: rgba(255,255,255,0.06);
            color: #fff;
            font-size: 14px;
            transition: border-color 0.3s ease;
        }
        .subscribe-form input::placeholder {
            color: #8A94A3;
        }
        .subscribe-form input:focus {
            border-color: var(--secondary);
            outline: none;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 18px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px 20px;
            font-size: 13px;
            color: #6E7A72;
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: auto;
        }
        .footer-bottom-links a {
            color: #6E7A72;
            font-size: 13px;
        }
        .footer-bottom-links a:hover,
        .footer-bottom-links a:focus {
            color: var(--secondary);
        }
        .footer-bottom-links span {
            color: #4A554E;
        }

        /* Responsive */
        @media (max-width: 1100px) {
            .nav-desktop .nav-link {
                padding: 8px 10px;
                font-size: 14px;
            }
            .nav-chip {
                padding: 4px 10px;
                font-size: 11px;
            }
            .header-cta .btn {
                padding: 8px 12px;
                font-size: 12px;
            }
        }
        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 2px;
            }
            .nav-desktop .nav-link {
                padding: 8px 8px;
                font-size: 13px;
            }
            .nav-chip-group {
                gap: 4px;
            }
            .nav-chip {
                padding: 4px 8px;
                font-size: 11px;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop,
            .header-cta,
            .header-inner > .nav-chip-group {
                display: none;
            }
            .hamburger-toggle {
                display: flex;
            }
            .mobile-menu {
                display: none;
            }
            .mobile-menu.open {
                display: flex;
            }
            .site-header {
                position: sticky;
                top: 0;
            }
            .header-inner {
                height: 60px;
            }
            .section {
                padding: var(--section-pad-mobile);
            }
            .section-title {
                font-size: 23px;
            }
            .cat-hero {
                padding: 32px 0 28px;
            }
            .cat-hero h1 {
                font-size: 26px;
            }
            .cat-hero-desc {
                font-size: 15px;
            }
            .article-card {
                flex-direction: column;
                gap: 14px;
                padding: 18px 16px;
            }
            .article-card .date-badge {
                width: 48px;
                height: 48px;
                flex-direction: row;
                gap: 4px;
                padding: 0 10px;
                border-radius: 6px;
            }
            .date-badge .day {
                font-size: 18px;
            }
            .date-badge .month {
                font-size: 12px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item .num {
                font-size: 26px;
            }
            .knowledge-block {
                padding: 22px 20px;
            }
            .cta-banner {
                padding: 28px 22px;
                flex-direction: column;
                text-align: center;
            }
            .cta-banner .cta-text p {
                margin-left: auto;
                margin-right: auto;
            }
            .cta-banner .cta-actions {
                justify-content: center;
                width: 100%;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-bottom-links {
                margin-left: 0;
            }
        }
        @media (max-width: 520px) {
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .article-card .meta-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .cta-banner .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-banner .btn {
                width: 100%;
            }
            .section-title {
                font-size: 21px;
            }
            .cat-hero h1 {
                font-size: 23px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1B5E3B;
            --primary-hover: #164A2F;
            --secondary: #E8890C;
            --secondary-hover: #C97508;
            --accent: #D9342B;
            --bg-base: #F7F5F0;
            --bg-panel: #FFFFFF;
            --border: #E3DFD3;
            --text-main: #1F2937;
            --text-sub: #5B6472;
            --text-muted: #8A94A3;
            --success: #2E7D32;
            --warning: #E8890C;
            --radius-lg: 12px;
            --radius-sm: 8px;
            --shadow-card: 0px 2px 10px rgba(31,41,55,0.06);
            --shadow-hover: 0px 8px 24px rgba(27,94,59,0.12);
            --font-stack: 'PingFang SC','Microsoft YaHei','Noto Sans SC',-apple-system,BlinkMacSystemFont,sans-serif;
            --section-pad: 64px 0;
            --section-pad-mobile: 36px 0;
            --container-max: 1200px;
            --footer-bg: #14201A;
            --footer-text: #A7B0AA;
            --footer-heading: #FFFFFF;
        }

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-base);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease, border-color 0.3s ease, background-color 0.3s ease;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        button {
            font-family: var(--font-stack);
            cursor: pointer;
            border: none;
            background: none;
        }

        input {
            font-family: var(--font-stack);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

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

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

        .section-dark {
            background: var(--footer-bg);
            color: #E5E7EB;
        }

        .section-dark h2,
        .section-dark h3 {
            color: #FFFFFF;
        }

        .section-dark .section-sub {
            color: #A7B0AA;
        }

        .section-tint {
            background-color: rgba(27, 94, 59, 0.04);
            border-top: 1px solid rgba(27, 94, 59, 0.08);
            border-bottom: 1px solid rgba(27, 94, 59, 0.08);
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-title .highlight {
            color: var(--primary);
        }

        .section-sub {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 32px;
            max-width: 720px;
        }

        .text-center {
            text-align: center;
        }

        .text-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-panel);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(31,41,55,0.04);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(31,41,55,0.1);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

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

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-sub);
            border-radius: 6px;
            transition: color 0.25s ease, background-color 0.25s ease;
            white-space: nowrap;
        }

        .nav-link:hover,
        .nav-link:focus {
            color: var(--primary);
            background-color: rgba(27,94,59,0.06);
        }

        .nav-link.active {
            color: var(--primary);
            background-color: rgba(27,94,59,0.1);
        }

        .nav-chip-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            height: 28px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .nav-chip .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .chip-preheat {
            background-color: #E8EDF0;
            color: #4A5A66;
        }

        .chip-preheat .dot {
            background-color: #7A8A94;
        }

        .chip-live {
            background-color: rgba(217, 52, 43, 0.1);
            color: var(--accent);
            animation: chipPulse 2s infinite;
        }

        .chip-live .dot {
            background-color: var(--accent);
            animation: dotPulse 1.5s infinite;
        }

        .chip-replay {
            background-color: rgba(46, 125, 50, 0.1);
            color: var(--success);
        }

        .chip-replay .dot {
            background-color: var(--success);
        }

        @keyframes chipPulse {
            0%, 100% { box-shadow: 0 0 0 0 rgba(217, 52, 43, 0.25); }
            50% { box-shadow: 0 0 0 6px rgba(217, 52, 43, 0); }
        }

        @keyframes dotPulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        .header-cta {
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 20px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
            letter-spacing: 0.3px;
            line-height: 1.4;
            white-space: nowrap;
            cursor: pointer;
            border: 2px solid transparent;
        }

        .btn:active {
            filter: brightness(0.95);
            transform: translateY(1px);
        }

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

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-hover);
            color: #ffffff;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(27,94,59,0.25);
        }

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

        .btn-accent:hover,
        .btn-accent:focus {
            background-color: var(--secondary-hover);
            color: #ffffff;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(232,137,12,0.25);
        }

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

        .btn-outline:hover,
        .btn-outline:focus {
            background-color: var(--primary);
            color: #ffffff;
            transform: translateY(-1px);
        }

        .btn-outline-white {
            background-color: transparent;
            color: #ffffff;
            border-color: rgba(255,255,255,0.6);
        }

        .btn-outline-white:hover,
        .btn-outline-white:focus {
            background-color: rgba(255,255,255,0.15);
            color: #ffffff;
            border-color: #ffffff;
        }

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

        .btn-lg {
            padding: 16px 28px;
            font-size: 16px;
            border-radius: var(--radius-sm);
        }

        /* Hamburger */
        .hamburger-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            border-radius: 6px;
            background: transparent;
            transition: background-color 0.2s;
        }

        .hamburger-toggle:hover {
            background-color: rgba(27,94,59,0.06);
        }

        .hamburger-toggle .bar {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--text-main);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        .hamburger-toggle[aria-expanded="true"] .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger-toggle[aria-expanded="true"] .bar:nth-child(2) {
            opacity: 0;
        }

        .hamburger-toggle[aria-expanded="true"] .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            background: var(--bg-panel);
            border-top: 1px solid var(--border);
            padding: 16px 20px 20px;
            flex-direction: column;
            gap: 4px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }

        .mobile-menu.open {
            max-height: 500px;
            padding: 16px 20px 20px;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .breadcrumb a {
            color: var(--text-sub);
            transition: color 0.2s;
        }

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

        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 12px;
        }

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

        /* Category Header */
        .category-header {
            padding: 40px 0 24px;
            background-color: var(--bg-panel);
            border-bottom: 1px solid var(--border);
        }

        .category-header h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .category-header .category-desc {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-sub);
            max-width: 880px;
        }

        /* List cards */
        .data-list-wrap {
            background: var(--bg-panel);
        }

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

        .data-list-card {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 22px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
        }

        .data-list-card:hover,
        .data-list-card:focus-within {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .data-list-card .card-tag {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            height: 26px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-top: 4px;
        }

        .tag-live {
            background-color: rgba(217, 52, 43, 0.1);
            color: var(--accent);
        }

        .tag-update {
            background-color: rgba(27, 94, 59, 0.1);
            color: var(--primary);
        }

        .tag-history {
            background-color: rgba(232, 137, 12, 0.12);
            color: var(--secondary-hover);
        }

        .tag-league {
            background-color: rgba(90, 100, 120, 0.1);
            color: var(--text-sub);
        }

        .data-list-card .card-body {
            flex: 1;
            min-width: 0;
        }

        .data-list-card .card-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-main);
            margin-bottom: 8px;
            transition: color 0.25s;
        }

        .data-list-card:hover .card-title {
            color: var(--primary);
        }

        .data-list-card .card-desc {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 10px;
        }

        .data-list-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .data-list-card .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .data-list-card .btn-read {
            flex-shrink: 0;
            align-self: center;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            padding: 8px 16px;
            border-radius: 6px;
            border: 1px solid var(--border);
            transition: all 0.25s;
            white-space: nowrap;
        }

        .data-list-card .btn-read:hover,
        .data-list-card .btn-read:focus {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* Featured cards */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .featured-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s;
            display: flex;
            flex-direction: column;
        }

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

        .featured-card .featured-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background-color: #E8EDF0;
            margin: 0;
        }

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

        .featured-card .featured-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            margin-bottom: 10px;
            width: fit-content;
        }

        .featured-card .featured-title {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .featured-card .featured-desc {
            font-size: 13px;
            line-height: 1.75;
            color: var(--text-sub);
            margin-bottom: 14px;
            flex: 1;
        }

        .featured-card .featured-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            align-self: flex-start;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

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

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }

        .stat-block {
            text-align: center;
            padding: 28px 20px;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-lg);
        }

        .stat-number {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: #fff;
            font-variant-numeric: tabular-nums;
            margin-bottom: 6px;
        }

        .stat-number .stat-unit {
            font-size: 16px;
            font-weight: 500;
            color: var(--secondary);
            margin-left: 3px;
        }

        .stat-label {
            font-size: 14px;
            line-height: 1.6;
            color: #A7B0AA;
        }

        /* Knowledge text */
        .knowledge-block {
            max-width: 880px;
            margin: 0 auto;
        }

        .knowledge-block p {
            font-size: 16px;
            line-height: 2.0;
            color: var(--text-sub);
            margin-bottom: 18px;
        }

        .knowledge-block p:last-child {
            margin-bottom: 0;
        }

        .knowledge-block strong {
            color: var(--text-main);
        }

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

        .faq-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        .faq-item:hover {
            border-color: rgba(27,94,59,0.3);
        }

        .faq-item.active {
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(27,94,59,0.1);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: background-color 0.25s;
        }

        .faq-question:hover {
            background-color: rgba(27,94,59,0.04);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 14px;
            transition: transform 0.3s, background-color 0.3s, color 0.3s;
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
            background-color: rgba(27,94,59,0.08);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-sub);
            margin: 0;
        }

        /* CTA */
        .cta-banner {
            background: var(--footer-bg);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
        }

        .cta-banner .cta-text h3 {
            font-size: 22px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }

        .cta-banner .cta-text p {
            font-size: 15px;
            color: #A7B0AA;
            margin: 0;
        }

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

        /* Tail note */
        .tailnote {
            max-width: 860px;
            margin: 0 auto;
            text-align: center;
            font-size: 14px;
            line-height: 1.9;
            color: var(--text-muted);
        }

        /* Footer */
        .site-footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding: 48px 0 20px;
            margin-top: 0;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 36px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        .footer-brand .logo-link {
            margin-bottom: 14px;
        }

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

        .footer-brand p {
            font-size: 14px;
            line-height: 1.85;
            color: var(--footer-text);
            margin: 0;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--footer-heading);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

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

        .footer-col ul a {
            font-size: 14px;
            color: var(--footer-text);
            transition: color 0.25s;
        }

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

        .footer-subscribe p {
            font-size: 13px;
            line-height: 1.75;
            color: var(--footer-text);
            margin-bottom: 12px;
        }

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

        .subscribe-form input {
            flex: 1;
            min-width: 160px;
            padding: 10px 14px;
            font-size: 14px;
            border-radius: 6px;
            border: 1px solid rgba(255,255,255,0.2);
            background: rgba(255,255,255,0.07);
            color: #fff;
            transition: border-color 0.25s, box-shadow 0.25s;
        }

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

        .subscribe-form input:focus {
            outline: none;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(232,137,12,0.15);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 18px;
            font-size: 13px;
            color: rgba(255,255,255,0.45);
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-bottom-links a {
            color: rgba(255,255,255,0.55);
            font-size: 13px;
            transition: color 0.25s;
        }

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

        /* Responsive */
        @media (max-width: 1199px) {
            .nav-desktop {
                gap: 2px;
            }
            .nav-link {
                padding: 8px 10px;
                font-size: 14px;
            }
            .nav-chip {
                padding: 4px 8px;
                font-size: 11px;
            }
        }

        @media (max-width: 1023px) {
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .category-header h1 {
                font-size: 28px;
            }
            .nav-desktop {
                display: none;
            }
            .nav-chip-group {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .hamburger-toggle {
                display: flex;
            }
            .mobile-menu {
                display: flex;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .cta-banner {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .cta-banner .cta-actions {
                justify-content: center;
            }
        }

        @media (max-width: 767px) {
            .section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .category-header h1 {
                font-size: 24px;
            }
            .category-header .category-desc {
                font-size: 15px;
            }
            .data-list-card {
                flex-direction: column;
                gap: 12px;
                padding: 16px 18px;
            }
            .data-list-card .btn-read {
                align-self: flex-start;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .cta-banner {
                padding: 28px 20px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 26px;
            }
        }

        @media (max-width: 519px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .breadcrumb {
                font-size: 13px;
            }
            .btn-lg {
                padding: 14px 22px;
                font-size: 15px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1B5E3B;
            --primary-hover: #164A2F;
            --secondary: #E8890C;
            --secondary-hover: #C97508;
            --accent: #D9342B;
            --bg-base: #F7F5F0;
            --bg-panel: #FFFFFF;
            --border: #E3DFD3;
            --text-main: #1F2937;
            --text-sub: #5B6472;
            --text-muted: #8A94A3;
            --success: #2E7D32;
            --warning: #E8890C;
            --radius-lg: 12px;
            --radius-sm: 8px;
            --shadow-card: 0px 2px 10px rgba(31, 41, 55, 0.06);
            --shadow-hover: 0px 8px 24px rgba(27, 94, 59, 0.12);
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --section-pad: 64px 0;
            --section-pad-mobile: 36px 0;
            --container-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-base);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease, border-color 0.3s ease, background-color 0.3s ease;
        }
        a:hover,
        a:focus {
            color: var(--primary-hover);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        button {
            font-family: var(--font-stack);
            cursor: pointer;
            border: none;
            background: none;
        }
        input {
            font-family: var(--font-stack);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .section {
            padding: var(--section-pad);
        }
        .section-alt {
            background-color: var(--bg-panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-dark {
            background: #14201A;
            color: #E5E7EB;
        }
        .section-dark h2,
        .section-dark h3 {
            color: #FFFFFF;
        }
        .section-dark .section-sub {
            color: #A7B0AA;
        }
        .section-title {
            font-size: 28px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-title .highlight {
            color: var(--primary);
        }
        .section-sub {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 32px;
            max-width: 720px;
        }
        .text-center {
            text-align: center;
        }
        .text-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-panel);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(31, 41, 55, 0.04);
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(31, 41, 55, 0.1);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 14px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--primary);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-sub);
            border-radius: 6px;
            transition: color 0.25s ease, background-color 0.25s ease;
            white-space: nowrap;
        }
        .nav-link:hover,
        .nav-link:focus {
            color: var(--primary);
            background-color: rgba(27, 94, 59, 0.06);
        }
        .nav-link.active {
            color: var(--primary);
            background-color: rgba(27, 94, 59, 0.1);
        }
        .nav-chip-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            height: 28px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .nav-chip .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            flex-shrink: 0;
        }
        .chip-preheat {
            background-color: #E8EDF0;
            color: #4A5A66;
        }
        .chip-preheat .dot {
            background: #6B7B86;
        }
        .chip-live {
            background-color: #FDE3E0;
            color: #C0392B;
            animation: live-pulse 2s infinite;
        }
        .chip-live .dot {
            background: #D9342B;
            box-shadow: 0 0 0 3px rgba(217, 52, 43, 0.2);
        }
        .chip-replay {
            background-color: #E4EFE6;
            color: #2E7D32;
        }
        .chip-replay .dot {
            background: #2E7D32;
        }
        @keyframes live-pulse {
            0%, 100% {
                box-shadow: 0 0 0 0 rgba(217, 52, 43, 0.25);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(217, 52, 43, 0);
            }
        }
        .header-cta {
            flex-shrink: 0;
        }
        .hamburger-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 36px;
            height: 36px;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            background: transparent;
            border: 1px solid var(--border);
        }
        .hamburger-toggle .bar {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 6px;
            padding: 16px 20px 20px;
            background: var(--bg-panel);
            border-top: 1px solid var(--border);
            box-shadow: 0 8px 20px rgba(31, 41, 55, 0.08);
        }
        .mobile-menu .nav-chip-group {
            margin-bottom: 10px;
            flex-wrap: wrap;
        }
        .mobile-menu .nav-link {
            padding: 10px 12px;
            font-size: 15px;
        }
        .mobile-menu .btn {
            align-self: flex-start;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 22px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            transition: all 0.3s ease;
            cursor: pointer;
            text-align: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(27, 94, 59, 0.2);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
            filter: brightness(0.95);
        }
        .btn-accent {
            background: var(--secondary);
            color: #fff;
            border: 1px solid var(--secondary);
        }
        .btn-accent:hover {
            background: var(--secondary-hover);
            border-color: var(--secondary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(232, 137, 12, 0.22);
        }
        .btn-accent:active {
            transform: translateY(0);
            box-shadow: none;
            filter: brightness(0.95);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--border);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(27, 94, 59, 0.05);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 6px;
        }
        .btn-lg {
            padding: 16px 28px;
            font-size: 16px;
            border-radius: var(--radius-sm);
        }
        .btn-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .btn-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-1px);
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            white-space: nowrap;
            line-height: 1.4;
        }
        .badge-primary {
            background: rgba(27, 94, 59, 0.1);
            color: var(--primary);
        }
        .badge-accent {
            background: rgba(217, 52, 43, 0.08);
            color: var(--accent);
        }
        .badge-secondary {
            background: rgba(232, 137, 12, 0.1);
            color: var(--secondary);
        }
        .badge-success {
            background: rgba(46, 125, 50, 0.1);
            color: var(--success);
        }

        /* Cards */
        .card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.35s ease;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--primary);
        }
        .card-body {
            padding: 22px 24px;
        }
        .card-title {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.45;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .card-text {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 14px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.3s ease;
        }
        .card-link:hover {
            color: var(--primary-hover);
            gap: 10px;
        }
        .card-img-top {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }

        /* Breadcrumb */
        .breadcrumb-container {
            background: var(--bg-base);
            border-bottom: 1px solid var(--border);
            padding: 18px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            list-style: none;
            margin: 0;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: #C5C9D0;
            font-size: 12px;
        }
        .breadcrumb a {
            color: var(--text-sub);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Category Hero */
        .category-hero {
            background: var(--bg-panel);
            border-bottom: 1px solid var(--border);
            padding: 42px 0 36px;
        }
        .category-hero h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .category-hero .category-desc {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-sub);
            max-width: 780px;
            margin: 0;
        }
        .category-hero .category-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 16px;
            flex-wrap: wrap;
        }

        /* List Cards */
        .list-card {
            display: flex;
            gap: 18px;
            padding: 20px 22px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: all 0.35s ease;
            align-items: flex-start;
        }
        .list-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            transform: translateX(4px);
        }
        .list-card .date-badge {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            line-height: 1.2;
        }
        .list-card .date-badge .day {
            font-size: 20px;
            font-weight: 700;
        }
        .list-card .date-badge .month {
            font-size: 12px;
            opacity: 0.85;
        }
        .list-card .content-flex {
            flex: 1;
            min-width: 0;
        }
        .list-card .tag-row {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 6px;
        }
        .list-card h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.45;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .list-card .summary {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 10px;
        }
        .list-card .read-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.3s ease;
        }
        .list-card .read-more:hover {
            gap: 10px;
            color: var(--primary-hover);
        }
        .list-card .article-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap 0.3s ease, color 0.3s ease;
        }
        .list-card .article-link:hover {
            gap: 10px;
            color: var(--primary-hover);
        }

        /* Featured Cards */
        .featured-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.35s ease;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .featured-card img {
            width: 100%;
            aspect-ratio: 16/8;
            object-fit: cover;
        }
        .featured-card .featured-body {
            padding: 18px 20px;
        }
        .featured-card h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.45;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .featured-card .featured-tag {
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            display: inline-block;
            margin-bottom: 8px;
        }
        .tag-hot {
            background: rgba(217, 52, 43, 0.1);
            color: var(--accent);
        }
        .tag-data {
            background: rgba(27, 94, 59, 0.1);
            color: var(--primary);
        }
        .tag-trend {
            background: rgba(232, 137, 12, 0.1);
            color: var(--secondary);
        }

        /* Stats */
        .stat-block {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .stat-item {
            flex: 1;
            min-width: 160px;
            text-align: center;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 22px 16px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }
        .stat-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-sub);
            margin-top: 6px;
            font-weight: 500;
        }

        /* Knowledge Section */
        .knowledge-block {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 30px;
            box-shadow: var(--shadow-card);
        }
        .knowledge-block p {
            font-size: 15px;
            line-height: 2.0;
            color: var(--text-sub);
            margin-bottom: 16px;
        }
        .knowledge-block p:last-child {
            margin-bottom: 0;
        }
        .knowledge-block h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            background: var(--bg-panel);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }
        .faq-item.active {
            border-color: var(--primary);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            background: transparent;
            transition: color 0.3s ease;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(27, 94, 59, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 12px;
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-sub);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* CTA Banner */
        .cta-banner {
            background: #14201A;
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(232, 137, 12, 0.15);
            pointer-events: none;
        }
        .cta-banner h3 {
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .cta-banner p {
            color: #B8C4BC;
            font-size: 15px;
            margin: 0;
            max-width: 520px;
            line-height: 1.8;
        }
        .cta-banner .btn {
            flex-shrink: 0;
        }

        /* Resource Cards */
        .resource-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px 22px;
            box-shadow: var(--shadow-card);
            display: flex;
            gap: 14px;
            align-items: flex-start;
            transition: all 0.3s ease;
        }
        .resource-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .resource-card .resource-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(27, 94, 59, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }
        .resource-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .resource-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-sub);
            margin: 0 0 10px;
        }
        .resource-card .resource-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .resource-card .resource-link:hover {
            gap: 8px;
        }

        /* Page Note */
        .page-note {
            background: #F2F0E9;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 22px 26px;
        }
        .page-note h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .page-note p {
            font-size: 14px;
            line-height: 1.9;
            color: var(--text-sub);
            margin: 0;
        }

        /* Footer */
        .site-footer {
            background: #14201A;
            color: #B8C4BC;
            padding: 48px 0 0;
        }
        .site-footer .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-footer .footer-brand .logo-link {
            margin-bottom: 14px;
        }
        .site-footer .footer-brand .logo-text {
            color: #E5E7EB;
        }
        .site-footer .footer-brand .logo-text span {
            color: var(--secondary);
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            color: #A7B0AA;
            margin: 0;
            max-width: 300px;
        }
        .site-footer h5 {
            color: #E5E7EB;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .site-footer ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            font-size: 14px;
            color: #A7B0AA;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }
        .site-footer ul li a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .site-footer .footer-subscribe p {
            font-size: 14px;
            color: #A7B0AA;
            margin: 0 0 14px;
            line-height: 1.8;
        }
        .subscribe-form {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 160px;
            padding: 10px 14px;
            border-radius: 6px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.06);
            color: #E5E7EB;
            font-size: 14px;
            transition: border-color 0.3s ease, background 0.3s ease;
        }
        .subscribe-form input::placeholder {
            color: #8A94A3;
        }
        .subscribe-form input:focus {
            border-color: var(--secondary);
            background: rgba(255, 255, 255, 0.1);
            outline: none;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            padding: 16px 0;
            font-size: 13px;
            color: #8A94A3;
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-bottom-links a {
            color: #8A94A3;
            font-size: 13px;
        }
        .footer-bottom-links a:hover {
            color: var(--secondary);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 0;
            }
            .nav-link {
                padding: 8px 10px;
                font-size: 14px;
            }
            .header-inner {
                gap: 10px;
            }
            .nav-chip-group {
                gap: 4px;
            }
            .nav-chip {
                padding: 4px 8px;
                font-size: 11px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: var(--section-pad-mobile);
            }
            .section-title {
                font-size: 24px;
            }
            .hamburger-toggle {
                display: flex;
            }
            .nav-desktop {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .mobile-menu {
                display: flex;
            }
            .mobile-menu .nav-chip-group {
                margin-bottom: 8px;
            }
            .site-footer .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .site-footer .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .list-card {
                flex-direction: column;
                padding: 16px 18px;
            }
            .list-card .date-badge {
                width: 48px;
                height: 48px;
            }
            .list-card .date-badge .day {
                font-size: 17px;
            }
            .cta-banner {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 24px;
            }
            .stat-block {
                flex-direction: column;
                gap: 10px;
            }
            .stat-item {
                min-width: 100%;
            }
            .category-hero h1 {
                font-size: 26px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header-inner {
                height: 60px;
            }
            .logo-text {
                font-size: 16px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
            .section-title {
                font-size: 21px;
            }
            .section-sub {
                font-size: 15px;
            }
            .site-footer .footer-top {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input {
                min-width: 100%;
            }
            .breadcrumb {
                flex-wrap: wrap;
                font-size: 13px;
            }
            .breadcrumb-container {
                padding: 14px 0;
            }
            .category-hero {
                padding: 28px 0 24px;
            }
            .category-hero h1 {
                font-size: 23px;
            }
            .category-hero .category-desc {
                font-size: 14px;
            }
            .list-card h3 {
                font-size: 16px;
            }
            .list-card .summary {
                font-size: 13px;
            }
            .knowledge-block {
                padding: 20px 18px;
            }
            .knowledge-block p {
                font-size: 14px;
            }
            .resource-card {
                padding: 16px 18px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1B5E3B;
            --primary-hover: #164A2F;
            --secondary: #E8890C;
            --secondary-hover: #C97508;
            --accent: #D9342B;
            --bg-base: #F7F5F0;
            --bg-panel: #FFFFFF;
            --border: #E3DFD3;
            --text-main: #1F2937;
            --text-sub: #5B6472;
            --text-muted: #8A94A3;
            --success: #2E7D32;
            --warning: #E8890C;
            --radius-lg: 12px;
            --radius-sm: 8px;
            --shadow-card: 0px 2px 10px rgba(31,41,55,0.06);
            --shadow-hover: 0px 8px 24px rgba(27,94,59,0.12);
            --font-stack: 'PingFang SC','Microsoft YaHei','Noto Sans SC',-apple-system,BlinkMacSystemFont,sans-serif;
            --section-pad: 64px 0;
            --section-pad-mobile: 36px 0;
            --container-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-base);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease, border-color 0.3s ease, background-color 0.3s ease;
        }
        a:hover,
        a:focus {
            color: var(--primary-hover);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        button {
            font-family: var(--font-stack);
            cursor: pointer;
            border: none;
            background: none;
        }
        input {
            font-family: var(--font-stack);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .section {
            padding: var(--section-pad);
        }
        .section-alt {
            background-color: var(--bg-panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-dark {
            background: #14201A;
            color: #E5E7EB;
        }
        .section-dark h2,
        .section-dark h3 {
            color: #FFFFFF;
        }
        .section-dark .section-sub {
            color: #A7B0AA;
        }
        .section-title {
            font-size: 28px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-title .highlight {
            color: var(--primary);
        }
        .section-sub {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 32px;
            max-width: 720px;
        }
        .text-center {
            text-align: center;
        }
        .text-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-panel);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(31,41,55,0.04);
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(31,41,55,0.1);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--primary);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-sub);
            border-radius: 6px;
            transition: color 0.25s ease, background-color 0.25s ease;
            white-space: nowrap;
        }
        .nav-link:hover,
        .nav-link:focus {
            color: var(--primary);
            background-color: rgba(27,94,59,0.06);
        }
        .nav-link.active {
            color: var(--primary);
            background-color: rgba(27,94,59,0.1);
        }
        .nav-chip-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            height: 28px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .nav-chip .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            flex-shrink: 0;
        }
        .chip-preheat {
            background-color: #E8EDF0;
            color: #4A5A66;
        }
        .chip-preheat .dot {
            background-color: #8199A8;
        }
        .chip-live {
            background-color: #FDE8E7;
            color: #B93830;
            animation: pulseLive 2s infinite ease-in-out;
        }
        .chip-live .dot {
            background-color: var(--accent);
        }
        @keyframes pulseLive {
            0%, 100% { box-shadow: 0 0 0 0 rgba(217,52,43,0.25); }
            50% { box-shadow: 0 0 0 6px rgba(217,52,43,0); }
        }
        .chip-replay {
            background-color: #E5F0E8;
            color: #4F7A5E;
        }
        .chip-replay .dot {
            background-color: #6FA87E;
        }
        .header-cta {
            flex-shrink: 0;
        }
        .hamburger-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            padding: 0;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: var(--bg-panel);
            cursor: pointer;
            transition: border-color 0.3s ease, background-color 0.3s ease;
        }
        .hamburger-toggle:hover {
            border-color: var(--primary);
            background-color: rgba(27,94,59,0.04);
        }
        .hamburger-toggle .bar {
            display: block;
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background-color: var(--text-main);
            transition: transform 0.3s ease, opacity 0.3s ease;
        }
        .hamburger-toggle.active .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger-toggle.active .bar:nth-child(2) {
            opacity: 0;
        }
        .hamburger-toggle.active .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            background: var(--bg-panel);
            border-top: 1px solid var(--border);
            padding: 16px 20px 20px;
            flex-direction: column;
            gap: 4px;
            position: absolute;
            top: 68px;
            left: 0;
            right: 0;
            box-shadow: 0 8px 20px rgba(31,41,55,0.1);
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu .nav-chip-group {
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .mobile-menu .nav-link {
            padding: 10px 12px;
            font-size: 15px;
            border-radius: 8px;
            display: block;
        }

        /* Button Styles */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 2px solid transparent;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn:hover {
            transform: translateY(-1px);
        }
        .btn:active {
            transform: translateY(0);
            filter: brightness(0.95);
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
        }
        .btn-accent {
            background: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
        }
        .btn-accent:hover {
            background: var(--secondary-hover);
            border-color: var(--secondary-hover);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: rgba(27,94,59,0.05);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            border-radius: 6px;
        }
        .btn-lg {
            padding: 16px 28px;
            font-size: 16px;
        }
        .btn-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            padding: 0;
            border: none;
            background: none;
        }
        .btn-link:hover {
            color: var(--primary-hover);
        }
        .btn-link i {
            font-size: 13px;
            transition: transform 0.3s ease;
        }
        .btn-link:hover i {
            transform: translateX(3px);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--bg-panel);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 14px;
            color: var(--text-muted);
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb li::after {
            content: "/";
            color: var(--border);
            font-size: 13px;
        }
        .breadcrumb li:last-child::after {
            display: none;
        }
        .breadcrumb a {
            color: var(--text-sub);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Category H1 Area */
        .cat-hero {
            background: linear-gradient(135deg, #1B5E3B 0%, #164A2F 60%, #14201A 100%);
            padding: 48px 0 64px;
            position: relative;
            overflow: hidden;
        }
        .cat-hero::before {
            content: "";
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232,137,12,0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        .cat-hero::after {
            content: "";
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .cat-hero .breadcrumb {
            position: relative;
            z-index: 1;
            margin-bottom: 18px;
        }
        .cat-hero .breadcrumb a,
        .cat-hero .breadcrumb li {
            color: rgba(255,255,255,0.7);
        }
        .cat-hero .breadcrumb li::after {
            color: rgba(255,255,255,0.3);
        }
        .cat-hero .breadcrumb .current {
            color: #F5C47A;
        }
        .cat-hero-content {
            position: relative;
            z-index: 1;
        }
        .cat-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.35;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .cat-hero p {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255,255,255,0.85);
            max-width: 820px;
            margin-bottom: 0;
        }
        .cat-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 20px;
            position: relative;
            z-index: 1;
        }
        .cat-tag {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(255,255,255,0.12);
            color: #E5E7EB;
            border: 1px solid rgba(255,255,255,0.15);
            letter-spacing: 0.3px;
        }

        /* Rule List Cards */
        .rule-list-grid {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .rule-card {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
            cursor: default;
        }
        .rule-card:hover {
            border-color: rgba(27,94,59,0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .rule-card-icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0;
        }
        .rule-card-icon.icon-green { background: var(--primary); }
        .rule-card-icon.icon-orange { background: var(--secondary); }
        .rule-card-icon.icon-red { background: var(--accent); }
        .rule-card-icon.icon-teal { background: #3A8A78; }
        .rule-card-icon.icon-navy { background: #394B6D; }
        .rule-card-icon.icon-purple { background: #7A5E9E; }
        .rule-card-body {
            flex: 1;
            min-width: 0;
        }
        .rule-card-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin-bottom: 8px;
        }
        .rule-card-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(27,94,59,0.08);
            color: var(--primary);
            letter-spacing: 0.3px;
        }
        .rule-card-date {
            font-size: 13px;
            color: var(--text-muted);
        }
        .rule-card h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.45;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .rule-card h3 a {
            color: var(--text-main);
            transition: color 0.3s ease;
        }
        .rule-card h3 a:hover {
            color: var(--primary);
        }
        .rule-card p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 12px;
            max-width: 780px;
        }
        .rule-card .btn-link {
            font-size: 14px;
        }

        /* Featured Cards */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            border-color: rgba(27,94,59,0.35);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .featured-card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .featured-card-img::after {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(to bottom, transparent 50%, rgba(20,32,26,0.45) 100%);
            pointer-events: none;
        }
        .featured-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .featured-card:hover .featured-card-img img {
            transform: scale(1.04);
        }
        .featured-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .featured-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(232,137,12,0.1);
            color: var(--secondary-hover);
            letter-spacing: 0.3px;
            align-self: flex-start;
            margin-bottom: 10px;
        }
        .featured-badge i {
            font-size: 11px;
        }
        .featured-card h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.45;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .featured-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-sub);
            margin-bottom: 14px;
            flex: 1;
        }
        .featured-card .btn-link {
            align-self: flex-start;
        }

        /* Stats Bar */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .stat-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .stat-number {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--primary);
            margin-bottom: 6px;
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.5px;
        }
        .stat-number.stat-orange {
            color: var(--secondary-hover);
        }
        .stat-number.stat-red {
            color: var(--accent);
        }
        .stat-number.stat-teal {
            color: #3A8A78;
        }
        .stat-label {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-sub);
            font-weight: 500;
        }

        /* Knowledge Content */
        .knowledge-block {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            box-shadow: var(--shadow-card);
            display: flex;
            gap: 30px;
            align-items: flex-start;
        }
        .knowledge-text {
            flex: 1;
            min-width: 0;
        }
        .knowledge-text h3 {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.45;
            margin-bottom: 14px;
            color: var(--text-main);
        }
        .knowledge-text p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-sub);
            margin-bottom: 14px;
        }
        .knowledge-text p:last-child {
            margin-bottom: 0;
        }
        .knowledge-img {
            flex-shrink: 0;
            width: 260px;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        .knowledge-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: border-color 0.3s ease;
        }
        .faq-item:hover {
            border-color: rgba(27,94,59,0.3);
        }
        .faq-item.open {
            border-color: rgba(27,94,59,0.45);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            cursor: pointer;
            transition: background-color 0.3s ease, color 0.3s ease;
            background: none;
            border: none;
        }
        .faq-question:hover {
            background: rgba(27,94,59,0.03);
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(27,94,59,0.08);
            color: var(--primary);
            font-size: 12px;
            transition: transform 0.35s ease, background-color 0.3s ease;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding-top 0.3s ease, padding-bottom 0.3s ease;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 4px;
            padding-bottom: 18px;
        }
        .faq-answer p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 0;
        }

        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, #164A2F 0%, #1B5E3B 40%, #14201A 100%);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(20,32,26,0.25);
        }
        .cta-banner::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232,137,12,0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-banner-content {
            position: relative;
            z-index: 1;
            flex: 1;
            min-width: 280px;
        }
        .cta-banner-content h3 {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.4;
            color: #FFFFFF;
            margin-bottom: 8px;
        }
        .cta-banner-content p {
            font-size: 15px;
            line-height: 1.7;
            color: rgba(255,255,255,0.8);
            margin-bottom: 0;
            max-width: 480px;
        }
        .cta-banner-actions {
            position: relative;
            z-index: 1;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* Tail Note */
        .note-block {
            background: var(--bg-panel);
            border: 1px dashed var(--border);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
        .note-block i {
            flex-shrink: 0;
            font-size: 18px;
            color: var(--secondary);
            margin-top: 4px;
        }
        .note-block p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 0;
        }

        /* Footer */
        .site-footer {
            background: #14201A;
            color: #A7B0AA;
            padding: 48px 0 0;
            margin-top: 0;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo-link {
            margin-bottom: 14px;
        }
        .footer-brand .logo-text {
            color: #FFFFFF;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #A7B0AA;
            margin-bottom: 0;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col a {
            font-size: 14px;
            color: #A7B0AA;
            transition: color 0.3s ease;
        }
        .footer-col a:hover {
            color: var(--secondary);
        }
        .footer-subscribe p {
            font-size: 14px;
            line-height: 1.7;
            color: #A7B0AA;
            margin-bottom: 14px;
        }
        .subscribe-form {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 140px;
            padding: 10px 14px;
            border-radius: 6px;
            border: 1px solid rgba(255,255,255,0.15);
            background: rgba(255,255,255,0.06);
            color: #E5E7EB;
            font-size: 14px;
            transition: border-color 0.3s ease, background-color 0.3s ease;
        }
        .subscribe-form input::placeholder {
            color: rgba(255,255,255,0.45);
        }
        .subscribe-form input:focus {
            outline: none;
            border-color: rgba(232,137,12,0.5);
            background: rgba(255,255,255,0.08);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            padding: 18px 0 20px;
            font-size: 13px;
            color: #8A94A3;
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-bottom-links a {
            color: #8A94A3;
            font-size: 13px;
            transition: color 0.3s ease;
        }
        .footer-bottom-links a:hover {
            color: var(--secondary);
        }
        .footer-bottom-links span {
            color: rgba(255,255,255,0.2);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 0;
            }
            .nav-link {
                padding: 8px 10px;
                font-size: 14px;
            }
            .header-cta {
                display: none;
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .knowledge-block {
                flex-direction: column;
            }
            .knowledge-img {
                width: 100%;
                max-height: 220px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-chip-group {
                display: none;
            }
            .hamburger-toggle {
                display: flex;
            }
            .header-cta {
                display: none;
            }
            .cat-hero {
                padding: 36px 0 48px;
            }
            .cat-hero h1 {
                font-size: 28px;
            }
            .cat-hero p {
                font-size: 15px;
            }
            .rule-card {
                flex-direction: column;
                gap: 14px;
                padding: 18px;
            }
            .rule-card-icon {
                width: 44px;
                height: 44px;
                font-size: 17px;
                border-radius: 8px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 22px;
            }
            .cta-banner {
                padding: 28px 24px;
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section {
                padding: var(--section-pad-mobile);
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .cat-hero h1 {
                font-size: 24px;
            }
            .cat-tags {
                gap: 6px;
            }
            .cat-tag {
                font-size: 12px;
                padding: 4px 10px;
            }
            .stats-bar {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .stat-item {
                padding: 18px 14px;
            }
            .rule-card {
                padding: 14px;
            }
            .rule-card p {
                font-size: 14px;
            }
            .featured-card h3 {
                font-size: 15px;
            }
            .knowledge-block {
                padding: 20px 18px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }
            .cta-banner {
                padding: 22px 18px;
            }
            .cta-banner-content h3 {
                font-size: 19px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1B5E3B;
            --primary-hover: #164A2F;
            --secondary: #E8890C;
            --secondary-hover: #C97508;
            --accent: #D9342B;
            --bg-base: #F7F5F0;
            --bg-panel: #FFFFFF;
            --border: #E3DFD3;
            --text-main: #1F2937;
            --text-sub: #5B6472;
            --text-muted: #8A94A3;
            --success: #2E7D32;
            --warning: #E8890C;
            --radius-lg: 12px;
            --radius-sm: 8px;
            --shadow-card: 0px 2px 10px rgba(31,41,55,0.06);
            --shadow-hover: 0px 8px 24px rgba(27,94,59,0.12);
            --font-stack: 'PingFang SC','Microsoft YaHei','Noto Sans SC',-apple-system,BlinkMacSystemFont,sans-serif;
            --section-pad: 64px 0;
            --section-pad-mobile: 36px 0;
            --container-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-base);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease, border-color 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
        }
        a:hover,
        a:focus {
            color: var(--primary-hover);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        button {
            font-family: var(--font-stack);
            cursor: pointer;
            border: none;
            background: none;
        }
        input {
            font-family: var(--font-stack);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .section {
            padding: var(--section-pad);
        }
        .section-alt {
            background-color: var(--bg-panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-dark {
            background: #14201A;
            color: #E5E7EB;
        }
        .section-dark h2,
        .section-dark h3 {
            color: #FFFFFF;
        }
        .section-dark .section-sub {
            color: #A7B0AA;
        }
        .section-title {
            font-size: 28px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-title .highlight {
            color: var(--primary);
        }
        .section-sub {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 32px;
            max-width: 720px;
        }
        .text-center {
            text-align: center;
        }
        .text-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-panel);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(31,41,55,0.04);
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(31,41,55,0.1);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--primary);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-sub);
            border-radius: 6px;
            transition: color 0.25s ease, background-color 0.25s ease;
            white-space: nowrap;
        }
        .nav-link:hover,
        .nav-link:focus {
            color: var(--primary);
            background-color: rgba(27,94,59,0.06);
        }
        .nav-link.active {
            color: var(--primary);
            background-color: rgba(27,94,59,0.1);
        }
        .nav-chip-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            height: 28px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .nav-chip .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            flex-shrink: 0;
        }
        .chip-preheat {
            background-color: #E8EDF0;
            color: #4A5A66;
        }
        .chip-preheat .dot {
            background-color: #6B7D8A;
        }
        .chip-live {
            background-color: #FCE8E6;
            color: var(--accent);
            animation: chipPulse 1.8s ease-in-out infinite;
        }
        .chip-live .dot {
            background-color: var(--accent);
            animation: dotPulse 1.8s ease-in-out infinite;
        }
        .chip-replay {
            background-color: #E4F0E6;
            color: #3D6B45;
        }
        .chip-replay .dot {
            background-color: #4D8A58;
        }
        @keyframes chipPulse {
            0%, 100% { box-shadow: 0 0 0 0 rgba(217,52,43,0.15); }
            50% { box-shadow: 0 0 0 4px rgba(217,52,43,0.08); }
        }
        @keyframes dotPulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.3); }
        }
        .header-cta {
            flex-shrink: 0;
        }
        .hamburger-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 4px;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: transparent;
            flex-shrink: 0;
        }
        .hamburger-toggle .bar {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--text-main);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }
        .hamburger-toggle[aria-expanded="true"] .bar:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .hamburger-toggle[aria-expanded="true"] .bar:nth-child(2) {
            opacity: 0;
        }
        .hamburger-toggle[aria-expanded="true"] .bar:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 6px;
            padding: 16px 20px 20px;
            border-top: 1px solid var(--border);
            background: var(--bg-panel);
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }
        .mobile-menu.open {
            display: flex;
            max-height: 520px;
            padding: 16px 20px 20px;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .btn:hover {
            transform: translateY(-1px);
        }
        .btn:active {
            transform: translateY(0);
            filter: brightness(0.95);
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            color: #fff;
            box-shadow: 0 4px 12px rgba(27,94,59,0.2);
        }
        .btn-secondary {
            background-color: var(--secondary);
            color: #1F2937;
        }
        .btn-secondary:hover {
            background-color: var(--secondary-hover);
            color: #1F2937;
            box-shadow: 0 4px 12px rgba(232,137,12,0.25);
        }
        .btn-accent {
            background-color: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background-color: #B8261F;
            color: #fff;
            box-shadow: 0 4px 12px rgba(217,52,43,0.22);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--border);
            color: var(--text-main);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(27,94,59,0.05);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }
        .btn-lg {
            padding: 16px 28px;
            font-size: 16px;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
            background: var(--bg-panel);
        }
        .breadcrumb-list {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .breadcrumb-list li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-list li:not(:last-child)::after {
            content: '›';
            color: var(--text-muted);
            font-size: 16px;
            margin-left: 4px;
        }
        .breadcrumb-list a {
            color: var(--text-sub);
            font-weight: 500;
        }
        .breadcrumb-list a:hover {
            color: var(--primary);
        }
        .breadcrumb-list .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Category H1 Section */
        .page-head-section {
            padding: 48px 0 32px;
            background: var(--bg-panel);
            border-bottom: 1px solid var(--border);
        }
        .page-head-section h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .page-head-section h1 .highlight {
            color: var(--primary);
        }
        .page-head-desc {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-sub);
            max-width: 820px;
        }

        /* List Cards (Category Main Body) */
        .article-list-grid {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .article-card-row {
            display: flex;
            gap: 20px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            transition: box-shadow 0.3s ease, border-color 0.3s ease, transform 0.2s ease;
            align-items: flex-start;
        }
        .article-card-row:hover {
            border-color: rgba(27,94,59,0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .article-card-tag {
            flex-shrink: 0;
            min-width: 72px;
            text-align: center;
            padding: 4px 10px;
            background: rgba(27,94,59,0.08);
            color: var(--primary);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .article-card-content {
            flex: 1;
        }
        .article-card-content h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.45;
            margin-bottom: 8px;
        }
        .article-card-content h3 a {
            color: var(--text-main);
        }
        .article-card-content h3 a:hover {
            color: var(--primary);
        }
        .article-card-summary {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 10px;
        }
        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .article-card-meta .date {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .article-card-meta .read-more {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }
        .article-card-meta .read-more:hover {
            color: var(--primary-hover);
        }

        /* Featured Cards */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: box-shadow 0.3s ease, transform 0.2s ease;
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .featured-card-img {
            height: 180px;
            overflow: hidden;
            background: #E4E8E3;
        }
        .featured-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .featured-card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .featured-card-body .badge-row {
            display: flex;
            gap: 8px;
            margin-bottom: 10px;
        }
        .featured-card-body h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .featured-card-body h3 a {
            color: var(--text-main);
        }
        .featured-card-body h3 a:hover {
            color: var(--primary);
        }
        .featured-card-body p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 14px;
        }
        .featured-card-body .meta-bottom {
            margin-top: auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Badge */
        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.2px;
        }
        .badge-primary {
            background: rgba(27,94,59,0.1);
            color: var(--primary);
        }
        .badge-warm {
            background: rgba(232,137,12,0.12);
            color: var(--secondary-hover);
        }
        .badge-live {
            background: rgba(217,52,43,0.1);
            color: var(--accent);
        }

        /* Stats */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .stat-block {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            transition: box-shadow 0.3s ease, transform 0.2s ease;
        }
        .stat-block:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* Knowledge Section */
        .knowledge-panel {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            box-shadow: var(--shadow-card);
            line-height: 2.0;
            color: var(--text-main);
        }
        .knowledge-panel p {
            font-size: 15px;
            color: var(--text-sub);
            margin-bottom: 16px;
        }
        .knowledge-panel p:last-child {
            margin-bottom: 0;
        }
        .knowledge-panel strong {
            color: var(--text-main);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: border-color 0.3s ease;
        }
        .faq-item:hover {
            border-color: rgba(27,94,59,0.4);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            background: var(--bg-panel);
            text-align: left;
            width: 100%;
            border-radius: var(--radius-sm);
            transition: background-color 0.3s ease;
        }
        .faq-question:hover {
            background: rgba(249,250,248,0.8);
        }
        .faq-question .faq-arrow {
            font-size: 14px;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-sub);
        }
        .faq-item.open .faq-answer {
            max-height: 240px;
            padding: 0 20px 18px;
        }

        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, #14201A 0%, #1B5E3B 60%, #164A2F 100%);
            border-radius: var(--radius-lg);
            padding: 44px 40px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            box-shadow: 0 8px 28px rgba(20,32,26,0.25);
        }
        .cta-banner-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .cta-banner-text p {
            font-size: 15px;
            line-height: 1.8;
            color: #C8D5CE;
            margin: 0;
            max-width: 520px;
        }
        .cta-banner-actions {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
        }

        /* Tail Note */
        .tail-note {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            font-size: 13px;
            line-height: 1.9;
            color: var(--text-muted);
            max-width: 900px;
        }

        /* Footer */
        .site-footer {
            background: #14201A;
            color: #A7B0AA;
            padding: 48px 0 28px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand .logo-link {
            margin-bottom: 14px;
        }
        .footer-brand .logo-text {
            color: #E5E7EB;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: #8A94A3;
            max-width: 300px;
        }
        .footer-col h5 {
            font-size: 14px;
            font-weight: 600;
            color: #E5E7EB;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: #8A94A3;
            transition: color 0.3s ease;
        }
        .footer-col ul a:hover {
            color: var(--secondary);
        }
        .footer-subscribe p {
            font-size: 13px;
            line-height: 1.7;
            color: #8A94A3;
            margin-bottom: 12px;
        }
        .subscribe-form {
            display: flex;
            gap: 8px;
        }
        .subscribe-form input {
            flex: 1;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: var(--radius-sm);
            padding: 8px 14px;
            color: #E5E7EB;
            font-size: 13px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .subscribe-form input::placeholder {
            color: #5B6472;
        }
        .subscribe-form input:focus {
            outline: none;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(232,137,12,0.15);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px 18px;
            font-size: 13px;
            color: #6B7280;
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
        }
        .footer-bottom-links a {
            color: #6B7280;
            font-size: 13px;
        }
        .footer-bottom-links a:hover {
            color: var(--secondary);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 0;
            }
            .nav-link {
                padding: 8px 10px;
                font-size: 14px;
            }
            .header-cta {
                display: none;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: var(--section-pad-mobile);
            }
            .section-title {
                font-size: 24px;
            }
            .nav-desktop {
                display: none;
            }
            .nav-chip-group {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .hamburger-toggle {
                display: flex;
            }
            .mobile-menu .nav-chip-group {
                display: flex;
                margin-bottom: 12px;
            }
            .mobile-menu .nav-link {
                padding: 10px 12px;
                border-radius: 8px;
            }
            .mobile-menu .nav-link.active {
                background: rgba(27,94,59,0.1);
            }
            .page-head-section h1 {
                font-size: 26px;
            }
            .article-card-row {
                flex-direction: column;
                gap: 12px;
                padding: 16px 18px;
            }
            .article-card-tag {
                min-width: auto;
                align-self: flex-start;
            }
            .article-card-meta {
                flex-wrap: wrap;
                gap: 8px;
            }
            .article-card-meta .read-more {
                margin-left: 0;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr;
            }
            .knowledge-panel {
                padding: 22px 20px;
            }
            .cta-banner {
                flex-direction: column;
                padding: 32px 24px;
                align-items: flex-start;
            }
            .cta-banner-actions {
                flex-wrap: wrap;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-bottom-links {
                margin-left: 0;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .page-head-section h1 {
                font-size: 22px;
            }
            .article-card-content h3 {
                font-size: 16px;
            }
            .article-card-summary {
                font-size: 13px;
            }
            .featured-card-img {
                height: 140px;
            }
            .stat-number {
                font-size: 22px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 14px;
            }
            .cta-banner-text h3 {
                font-size: 20px;
            }
            .subscribe-form {
                flex-direction: column;
            }
        }