/* roulang page: index */
:root {
            --primary: #1B4D3E;
            --primary-dark: #142E26;
            --primary-light: #2E5F50;
            --accent: #D98E32;
            --accent-dark: #C07624;
            --accent-light: #F7EEE0;
            --bg: #F7F5F0;
            --bg-secondary: #EDEFEA;
            --text: #232A27;
            --text-secondary: #5B6560;
            --border: #E0E4DE;
            --divider: #D5DBD4;
            --success: #2E7D5A;
            --warning: #C07624;
            --white: #FFFFFF;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 8px rgba(35, 42, 39, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(35, 42, 39, 0.12);
            --shadow-btn-accent: 0 2px 10px rgba(217, 142, 50, 0.2);
            --font-cn: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
            --font-num: 'Inter', 'Roboto', system-ui, sans-serif;
            --transition: all .25s ease;
        }

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

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

        body {
            font-family: var(--font-cn);
            font-size: 15px;
            line-height: 1.85;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .container-wide {
                padding: 0 16px;
            }
        }

        section {
            padding: 64px 0;
        }
        @media (max-width: 768px) {
            section {
                padding: 40px 0;
            }
        }

        .section-tag {
            display: inline-block;
            background: var(--primary);
            color: var(--white);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .08em;
            padding: 4px 14px;
            border-radius: 50px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 14px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 32px;
            max-width: 820px;
        }

        /* Header */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(35, 42, 39, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }
        .logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--white);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .logo:hover {
            color: var(--primary-dark);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
        }
        .main-nav > li {
            position: relative;
        }
        .main-nav > li > a {
            display: block;
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            border-radius: 4px;
            transition: var(--transition);
            position: relative;
        }
        .main-nav > li > a:hover,
        .main-nav > li > a.active {
            color: var(--primary);
        }
        .main-nav > li > a:hover::after,
        .main-nav > li > a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .main-nav > li.has-dropdown > a::before {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            border-right: 1.5px solid currentColor;
            border-bottom: 1.5px solid currentColor;
            transform: rotate(45deg) translateY(-3px);
            margin-right: 8px;
            transition: var(--transition);
        }
        .main-nav > li.has-dropdown:hover > a::before {
            transform: rotate(225deg) translateY(-1px);
        }

        .dropdown-panel {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 200px;
            background: var(--white);
            border-radius: 8px;
            box-shadow: 0 6px 24px rgba(35, 42, 39, 0.1);
            border: 1px solid var(--border);
            padding: 8px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: var(--transition);
            z-index: 101;
        }
        .main-nav > li.has-dropdown:hover .dropdown-panel,
        .main-nav > li.has-dropdown:focus-within .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .dropdown-panel a {
            display: block;
            padding: 9px 20px;
            font-size: 13px;
            color: var(--text);
            transition: var(--transition);
        }
        .dropdown-panel a:hover {
            background: var(--bg-secondary);
            color: var(--primary);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            border-radius: 4px;
        }
        .nav-toggle:hover {
            background: var(--bg-secondary);
        }

        @media (max-width: 1024px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: stretch;
                padding: 12px 16px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 24px rgba(35, 42, 39, 0.08);
                display: none;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav > li > a {
                padding: 12px 8px;
                font-size: 15px;
                border-bottom: 1px solid var(--bg-secondary);
            }
            .main-nav > li > a:hover::after,
            .main-nav > li > a.active::after {
                display: none;
            }
            .dropdown-panel {
                position: static;
                box-shadow: none;
                border: none;
                padding-left: 16px;
                opacity: 1;
                visibility: visible;
                transform: none;
                display: none;
                background: var(--bg);
                border-radius: 4px;
            }
            .main-nav > li.has-dropdown.open .dropdown-panel {
                display: block;
            }
            .main-nav > li.has-dropdown > a::before {
                transform: rotate(45deg) translateY(-3px);
            }
            .main-nav > li.has-dropdown.open > a::before {
                transform: rotate(225deg) translateY(-1px);
            }
        }

        /* Hero */
        .hero {
            background: var(--bg);
            padding: 48px 0 60px;
            min-height: 75vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 45%;
            height: 100%;
            background: linear-gradient(135deg, rgba(27, 77, 62, 0.03) 0%, rgba(217, 142, 50, 0.06) 100%);
            border-radius: 0 0 0 40px;
            z-index: 0;
        }
        .hero .container-wide {
            position: relative;
            z-index: 1;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
        }
        .hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 520px;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
            line-height: 1.4;
            min-height: 44px;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--white);
            box-shadow: var(--shadow-btn-accent);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--white);
            transform: translateY(-1px);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-secondary:hover {
            background: #E8F0EC;
            color: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            min-height: 36px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            list-style: none;
        }
        .hero-stats li {
            display: flex;
            flex-direction: column;
        }
        .hero-stat-num {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-num);
            line-height: 1.3;
        }
        .hero-stat-label {
            font-size: 12px;
            color: var(--text-secondary);
            letter-spacing: .04em;
        }

        .hero-visual {
            position: relative;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(35, 42, 39, 0.12);
        }
        .hero-visual img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: 14px;
        }
        .hero-visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px 20px;
            background: linear-gradient(0deg, rgba(20, 46, 38, 0.92) 0%, rgba(20, 46, 38, 0.4) 70%, transparent 100%);
            color: var(--white);
            border-radius: 0 0 14px 14px;
        }
        .hero-visual-overlay h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 4px;
        }
        .hero-visual-overlay p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
        }

        @media (max-width: 768px) {
            .hero {
                min-height: auto;
                padding: 32px 0 40px;
            }
            .hero::before {
                width: 100%;
                height: 200px;
                top: auto;
                bottom: 0;
                border-radius: 40px 40px 0 0;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-title {
                font-size: 26px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-stat-num {
                font-size: 20px;
            }
        }

        /* Lottery Quickview */
        .lottery-strip {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            padding: 32px 0;
        }
        .strip-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            flex-wrap: wrap;
            gap: 10px;
        }
        .strip-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
        }
        .strip-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
        }
        .strip-link:hover {
            color: var(--accent-dark);
        }
        .lottery-cards {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }
        .lottery-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 16px;
            transition: var(--transition);
        }
        .lottery-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .lottery-card .lc-date {
            font-size: 12px;
            color: var(--text-secondary);
            margin-bottom: 6px;
            font-family: var(--font-num);
        }
        .lottery-card .lc-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .lottery-card .lc-numbers {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 8px;
        }
        .lottery-card .lc-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 600;
            font-family: var(--font-num);
        }
        .lottery-card .lc-info {
            font-size: 12px;
            color: var(--text-secondary);
        }

        @media (max-width: 1024px) {
            .lottery-cards {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 640px) {
            .lottery-cards {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* Feature Grid */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .feature-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .feature-card:nth-child(2) {
            margin-top: 16px;
        }
        .feature-card:nth-child(3) {
            margin-top: 32px;
        }
        .feature-card:nth-child(4) {
            margin-top: 8px;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .feature-card .fc-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--bg-secondary);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 4px;
        }
        .feature-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin: 0;
            line-height: 1.5;
        }
        .feature-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }
        .feature-card .fc-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 4px;
        }
        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            font-size: 11px;
            font-weight: 500;
            letter-spacing: .02em;
        }
        .badge-primary {
            background: #E8F0EC;
            color: var(--primary);
        }
        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }
        .badge-gray {
            background: #F0F1EF;
            color: var(--text-secondary);
        }

        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-card:nth-child(2),
            .feature-card:nth-child(3),
            .feature-card:nth-child(4) {
                margin-top: 0;
            }
        }
        @media (max-width: 640px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Data Module */
        .data-module {
            background: var(--bg-secondary);
            border-radius: 14px;
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }
        .data-module-text h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
            line-height: 1.5;
        }
        .data-module-text p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 12px;
        }
        .data-module-img {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 4px 16px rgba(35, 42, 39, 0.08);
        }
        .data-module-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: 10px;
        }
        @media (max-width: 768px) {
            .data-module {
                grid-template-columns: 1fr;
                padding: 24px 20px;
                gap: 20px;
            }
        }

        /* Scenario Cards */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .scenario-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .scenario-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent);
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .scenario-card .sc-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--border);
            font-family: var(--font-num);
            line-height: 1;
            margin-bottom: 10px;
        }
        .scenario-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .scenario-card .sc-play {
            font-size: 12px;
            color: var(--accent-dark);
            font-weight: 600;
            margin-bottom: 10px;
        }
        .scenario-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .scenario-card ul li {
            font-size: 13px;
            color: var(--text-secondary);
            padding: 6px 0;
            border-bottom: 1px dashed var(--border);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .scenario-card ul li:last-child {
            border-bottom: none;
        }
        .scenario-card ul li::before {
            content: '•';
            color: var(--primary);
            font-weight: 700;
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Demo Section */
        .demo-wrap {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 32px;
            align-items: center;
        }
        .demo-text h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
            line-height: 1.5;
        }
        .demo-text ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .demo-text ul li {
            font-size: 14px;
            color: var(--text-secondary);
            padding: 10px 0;
            display: flex;
            gap: 10px;
            align-items: flex-start;
            line-height: 1.7;
        }
        .demo-text ul li i {
            color: var(--primary);
            margin-top: 4px;
            flex-shrink: 0;
        }
        .demo-img {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(35, 42, 39, 0.1);
        }
        .demo-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: 12px;
        }
        @media (max-width: 768px) {
            .demo-wrap {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* Deep Content */
        .deep-content {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 44px 40px;
        }
        .deep-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 18px;
            line-height: 1.4;
        }
        .deep-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin: 28px 0 12px;
            line-height: 1.5;
        }
        .deep-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.95;
            margin-bottom: 14px;
            text-align: justify;
        }
        .deep-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 18px 0;
            font-size: 13px;
        }
        .deep-content table th {
            background: var(--primary);
            color: var(--white);
            padding: 10px 14px;
            text-align: left;
            font-weight: 600;
        }
        .deep-content table td {
            padding: 10px 14px;
            border-bottom: 1px solid var(--border);
            color: var(--text-secondary);
        }
        .deep-content table tr:nth-child(even) td {
            background: var(--bg);
        }
        @media (max-width: 640px) {
            .deep-content {
                padding: 24px 18px;
            }
            .deep-content table {
                font-size: 12px;
            }
            .deep-content table th,
            .deep-content table td {
                padding: 8px 6px;
            }
        }

        /* Case Cards */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .case-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition);
        }
        .case-card:nth-child(2) {
            margin-top: 20px;
        }
        .case-card:nth-child(3) {
            margin-top: 40px;
        }
        .case-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .case-card .cc-img {
            height: 160px;
            overflow: hidden;
        }
        .case-card .cc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .case-card .cc-body {
            padding: 20px;
        }
        .case-card .cc-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .case-card .cc-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 8px;
        }
        .case-card .cc-body .cc-meta {
            font-size: 12px;
            color: var(--accent-dark);
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .case-grid {
                grid-template-columns: 1fr;
            }
            .case-card:nth-child(2),
            .case-card:nth-child(3) {
                margin-top: 0;
            }
        }

        /* Pricing */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            align-items: stretch;
        }
        .pricing-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }
        .pricing-card.featured {
            border: 2px solid var(--accent);
            background: var(--accent-light);
            position: relative;
            transform: translateY(-8px);
        }
        .pricing-card .pc-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: var(--white);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            white-space: nowrap;
        }
        .pricing-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .pricing-card .pc-price {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            font-family: var(--font-num);
            margin-bottom: 4px;
        }
        .pricing-card .pc-price span {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            font-family: var(--font-cn);
        }
        .pricing-card .pc-desc {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            line-height: 1.7;
        }
        .pricing-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
            flex: 1;
        }
        .pricing-card ul li {
            font-size: 13px;
            color: var(--text-secondary);
            padding: 7px 0;
            display: flex;
            gap: 8px;
            align-items: flex-start;
            line-height: 1.6;
            border-bottom: 1px solid var(--divider);
        }
        .pricing-card ul li:last-child {
            border-bottom: none;
        }
        .pricing-card ul li i {
            color: var(--success);
            margin-top: 4px;
            flex-shrink: 0;
            font-size: 12px;
        }
        @media (max-width: 768px) {
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            .pricing-card.featured {
                transform: none;
            }
        }

        /* Brand Intro */
        .brand-intro {
            display: flex;
            align-items: center;
            gap: 32px;
            background: var(--white);
            border-radius: 14px;
            padding: 36px 32px;
            border: 1px solid var(--border);
        }
        .brand-intro .bi-icon {
            flex-shrink: 0;
            width: 80px;
            height: 80px;
            background: var(--primary);
            color: var(--white);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 36px;
        }
        .brand-intro .bi-text h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .brand-intro .bi-text p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin: 0;
        }
        @media (max-width: 640px) {
            .brand-intro {
                flex-direction: column;
                text-align: center;
                gap: 16px;
                padding: 28px 20px;
            }
        }

        /* Reviews */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .review-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px 16px;
            transition: var(--transition);
        }
        .review-card:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .review-card .rv-stars {
            color: var(--accent);
            font-size: 13px;
            margin-bottom: 8px;
        }
        .review-card .rv-text {
            font-size: 13px;
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 10px;
        }
        .review-card .rv-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--text-secondary);
        }
        .review-card .rv-user {
            font-weight: 600;
            color: var(--text);
        }
        @media (max-width: 768px) {
            .review-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Word of Mouth */
        .wom-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .wom-item {
            background: var(--white);
            border-left: 3px solid var(--accent);
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            padding: 22px 24px;
            border: 1px solid var(--border);
            border-left: 3px solid var(--accent);
        }
        .wom-item blockquote {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin: 0 0 10px;
            font-style: italic;
        }
        .wom-item .wom-user {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }

        /* News List */
        .news-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .news-list li {
            display: grid;
            grid-template-columns: 90px 1fr auto;
            gap: 18px;
            padding: 18px 8px;
            border-bottom: 1px solid var(--divider);
            transition: var(--transition);
            align-items: start;
        }
        .news-list li:hover {
            background: var(--bg-secondary);
            border-radius: 6px;
            cursor: pointer;
        }
        .news-list .nl-date {
            font-size: 13px;
            color: var(--text-secondary);
            font-family: var(--font-num);
            padding-top: 2px;
        }
        .news-list .nl-content h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.6;
        }
        .news-list .nl-content p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }
        .news-list .nl-btn {
            flex-shrink: 0;
            align-self: center;
        }
        @media (max-width: 640px) {
            .news-list li {
                grid-template-columns: 1fr;
                gap: 8px;
                padding: 14px 4px;
            }
            .news-list .nl-btn {
                align-self: flex-start;
            }
        }

        /* FAQ */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: 8px;
            margin-bottom: 12px;
            background: var(--white);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            width: 100%;
            border: none;
            background: none;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            text-align: left;
            gap: 12px;
            min-height: 44px;
            transition: var(--transition);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--primary);
            transition: var(--transition);
            font-size: 14px;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.9;
            border-left: 2px solid var(--primary);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 12px 20px 18px;
            margin-left: 12px;
        }

        /* CTA */
        .cta-section {
            background: var(--primary-dark);
            border-radius: 16px;
            padding: 56px 40px;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.9;
            max-width: 580px;
            margin: 0 auto 28px;
        }
        .cta-section .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 18px;
        }
        .cta-section .btn-primary {
            background: var(--accent);
        }
        .cta-section .btn-secondary {
            border-color: rgba(255, 255, 255, 0.5);
            color: var(--white);
        }
        .cta-section .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--white);
        }
        .cta-trust {
            display: flex;
            justify-content: center;
            gap: 28px;
            flex-wrap: wrap;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }
        .cta-trust span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .cta-trust i {
            color: var(--accent);
        }
        @media (max-width: 640px) {
            .cta-section {
                padding: 36px 20px;
            }
            .cta-section h2 {
                font-size: 22px;
            }
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 28px;
            font-size: 13px;
            line-height: 1.8;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin: 0;
            line-height: 1.9;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 12px;
            letter-spacing: .04em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 13px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-bottom .fb-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* Utility */
        .text-center { text-align: center; }
        .mt-0 { margin-top: 0; }
        .mb-0 { margin-bottom: 0; }
        .gap-sm { gap: 10px; }

/* roulang page: category3 */
:root {
            --primary: #1B4D3E;
            --primary-dark: #142E26;
            --primary-light: #2E5F50;
            --accent: #D98E32;
            --accent-dark: #C07624;
            --accent-light: #F7EEE0;
            --bg: #F7F5F0;
            --bg-secondary: #EDEFEA;
            --text: #232A27;
            --text-secondary: #5B6560;
            --border: #E0E4DE;
            --divider: #D5DBD4;
            --success: #2E7D5A;
            --warning: #C07624;
            --white: #FFFFFF;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 8px rgba(35, 42, 39, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(35, 42, 39, 0.12);
            --shadow-btn-accent: 0 2px 10px rgba(217, 142, 50, 0.2);
            --font-cn: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
            --font-num: 'Inter', 'Roboto', system-ui, sans-serif;
            --transition: all .25s ease;
        }

        * {
            box-sizing: border-box;
        }

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

        body {
            font-family: var(--font-cn);
            font-size: 15px;
            line-height: 1.85;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }

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

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

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

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

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

        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: 64px 0;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary);
            color: var(--white);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .08em;
            padding: 4px 14px;
            border-radius: 50px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 14px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 32px;
            max-width: 820px;
        }

        /* Header */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(35, 42, 39, 0.04);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }

        .logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--white);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .main-nav>li {
            position: relative;
        }

        .main-nav>li>a {
            display: block;
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            border-radius: 4px;
            transition: var(--transition);
            position: relative;
            cursor: pointer;
        }

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

        .main-nav>li>a:hover::after,
        .main-nav>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .has-dropdown>a::before {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            border-right: 1.5px solid currentColor;
            border-bottom: 1.5px solid currentColor;
            transform: rotate(45deg) translateY(-2px);
            margin-right: 8px;
            transition: var(--transition);
        }

        .dropdown-panel {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 200px;
            background: var(--white);
            border-radius: 8px;
            box-shadow: 0 8px 24px rgba(35, 42, 39, 0.1);
            padding: 8px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: var(--transition);
            z-index: 200;
            border: 1px solid var(--border);
        }

        .has-dropdown:hover .dropdown-panel,
        .has-dropdown:focus-within .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-panel a {
            display: block;
            padding: 10px 20px;
            font-size: 13px;
            color: var(--text);
            transition: var(--transition);
            border-left: 2px solid transparent;
        }

        .dropdown-panel a:hover {
            background: var(--bg-secondary);
            color: var(--primary);
            border-left-color: var(--primary);
        }

        .dropdown-panel a.active {
            color: var(--primary);
            font-weight: 600;
            border-left-color: var(--primary);
            background: var(--bg-secondary);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 4px;
            padding: 8px 12px;
            color: var(--text);
            cursor: pointer;
            font-size: 16px;
        }

        /* Breadcrumb */
        .breadcrumb-nav {
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }

        .breadcrumb-inner {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .breadcrumb-inner a {
            color: var(--text-secondary);
        }

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

        .breadcrumb-inner .separator {
            color: var(--divider);
        }

        .breadcrumb-inner .current {
            color: var(--text);
            font-weight: 500;
        }

        /* Category Hero */
        .category-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            padding: 48px 0;
            position: relative;
            overflow: hidden;
        }

        .category-header::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 45%;
            height: 100%;
            background: var(--bg-secondary);
            clip-path: polygon(20% 0, 100% 0, 100% 100%, 0 100%);
            z-index: 0;
        }

        .category-header .container-wide {
            position: relative;
            z-index: 1;
        }

        .category-header-content {
            max-width: 65%;
        }

        .category-header h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .category-header .intro {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 680px;
        }

        .category-header-meta {
            display: flex;
            gap: 16px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .category-header-meta .badge-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 6px 14px;
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* Listing cards */
        .listing-section {
            padding: 48px 0;
        }

        .listing-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

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

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

        .listing-card .card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-secondary);
        }

        .listing-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .listing-card:hover .card-image img {
            transform: scale(1.03);
        }

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

        .listing-card .card-date {
            font-size: 12px;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }

        .listing-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .listing-card p {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.8;
            flex: 1;
            margin-bottom: 14px;
        }

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

        .tag-badge {
            display: inline-block;
            background: var(--bg-secondary);
            color: var(--text-secondary);
            font-size: 12px;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            border: 1px solid var(--border);
        }

        .tag-badge.accent {
            background: var(--accent-light);
            color: var(--accent-dark);
            border-color: transparent;
        }

        .tag-badge.primary {
            background: #E8F0EC;
            color: var(--primary);
            border-color: transparent;
        }

        /* Deep content section */
        .deep-content {
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 64px 0;
        }

        .deep-content .content-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .deep-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 20px;
        }

        .deep-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin: 28px 0 12px;
        }

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

        /* Featured items */
        .featured-section {
            padding: 56px 0;
        }

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

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

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

        .featured-card .featured-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--bg-secondary);
        }

        .featured-card .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-card .featured-body {
            padding: 18px 20px 20px;
        }

        .featured-card .featured-date {
            font-size: 12px;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }

        .featured-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .featured-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Tools resources */
        .tools-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 56px 0;
        }

        .tools-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .tool-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .tool-card .tool-icon {
            width: 44px;
            height: 44px;
            background: var(--accent-light);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-dark);
            font-size: 18px;
            margin-bottom: 14px;
        }

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

        .tool-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        .tool-card .tool-action {
            margin-top: 14px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .tool-card .tool-action:hover {
            color: var(--accent-dark);
        }

        /* FAQ */
        .faq-section {
            padding: 56px 0;
        }

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

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 10px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 14px;
            color: var(--text);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 12px;
            transition: var(--transition);
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
            border-top: 1px solid transparent;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            border-top-color: var(--divider);
        }

        .faq-answer p {
            padding: 14px 20px 18px;
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        /* CTA */
        .cta-section {
            background: var(--primary-dark);
            padding: 64px 0;
            text-align: center;
        }

        .cta-section .cta-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
        }

        .cta-section .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--white);
            box-shadow: var(--shadow-btn-accent);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--white);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--white);
            border-color: rgba(255, 255, 255, 0.4);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--white);
            border-color: var(--white);
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
        }

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

        .footer-brand h3 {
            color: var(--white);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 300px;
        }

        .footer-col h4 {
            color: var(--white);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 12px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 13px;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            align-items: center;
        }

        .fb-links {
            display: flex;
            gap: 12px;
            margin-left: auto;
        }

        .fb-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 12px;
        }

        .fb-links a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .category-header-content {
                max-width: 100%;
            }

            .category-header::before {
                width: 35%;
            }

            .listing-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .tools-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

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

        @media (max-width: 640px) {
            .container-wide {
                padding: 0 12px;
            }

            section {
                padding: 36px 0;
            }

            .header-inner {
                height: 56px;
                gap: 10px;
            }

            .logo {
                font-size: 17px;
            }

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

            .nav-toggle {
                display: block;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 56px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: stretch;
                padding: 12px 0;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 16px rgba(35, 42, 39, 0.08);
                max-height: 75vh;
                overflow-y: auto;
            }

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

            .main-nav>li>a {
                padding: 10px 16px;
                font-size: 14px;
            }

            .main-nav>li>a:hover::after,
            .main-nav>li>a.active::after {
                display: none;
            }

            .has-dropdown>a::before {
                display: none;
            }

            .dropdown-panel {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                border: none;
                min-width: auto;
                padding: 4px 0 8px;
                background: var(--bg);
                border-radius: 0;
                display: none;
            }

            .has-dropdown.open-mobile .dropdown-panel {
                display: block;
            }

            .dropdown-panel a {
                padding: 10px 28px;
                font-size: 13px;
            }

            .category-header {
                padding: 32px 0;
            }

            .category-header::before {
                display: none;
            }

            .category-header h1 {
                font-size: 24px;
            }

            .category-header .intro {
                font-size: 14px;
            }

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

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

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

            .section-title {
                font-size: 22px;
            }

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

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                align-items: flex-start;
            }

            .fb-links {
                margin-left: 0;
            }
        }

        @media (min-width: 641px) and (max-width: 1024px) {
            .main-nav>li>a {
                padding: 10px 12px;
                font-size: 13px;
            }

            .dropend-panel {
                min-width: 180px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1B4D3E;
            --primary-dark: #142E26;
            --primary-light: #2E5F50;
            --accent: #D98E32;
            --accent-dark: #C07624;
            --accent-light: #F7EEE0;
            --bg: #F7F5F0;
            --bg-secondary: #EDEFEA;
            --text: #232A27;
            --text-secondary: #5B6560;
            --border: #E0E4DE;
            --divider: #D5DBD4;
            --success: #2E7D5A;
            --warning: #C07624;
            --white: #FFFFFF;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 8px rgba(35, 42, 39, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(35, 42, 39, 0.12);
            --shadow-btn-accent: 0 2px 10px rgba(217, 142, 50, 0.2);
            --font-cn: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
            --font-num: 'Inter', 'Roboto', system-ui, sans-serif;
            --transition: all .25s ease;
        }

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

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

        body {
            font-family: var(--font-cn);
            font-size: 15px;
            line-height: 1.85;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
        }

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

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

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

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

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

        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: 56px 0;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary);
            color: var(--white);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .08em;
            padding: 4px 14px;
            border-radius: 50px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 14px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 32px;
            max-width: 820px;
        }

        /* Header */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(35, 42, 39, 0.04);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }

        .logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--white);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
        }

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

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 22px;
            cursor: pointer;
            padding: 8px;
            border-radius: 4px;
            transition: var(--transition);
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            margin: 0;
        }

        .main-nav>li {
            position: relative;
        }

        .main-nav>li>a {
            display: block;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            border-radius: 4px;
            transition: var(--transition);
            position: relative;
        }

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

        .main-nav>li>a:hover::after,
        .main-nav>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .main-nav>li.has-dropdown>a::before {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            border-right: 1.5px solid currentColor;
            border-bottom: 1.5px solid currentColor;
            transform: rotate(45deg) translateY(-3px);
            margin-right: 8px;
            transition: var(--transition);
        }

        .main-nav>li.has-dropdown:hover>a::before,
        .main-nav>li.has-dropdown:focus-within>a::before {
            transform: rotate(225deg) translateY(-1px);
        }

        .dropdown-panel {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 200px;
            background: var(--white);
            border-radius: 8px;
            box-shadow: var(--shadow-card-hover);
            padding: 8px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: var(--transition);
            z-index: 50;
            border: 1px solid var(--border);
        }

        .main-nav>li.has-dropdown:hover .dropdown-panel,
        .main-nav>li.has-dropdown:focus-within .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-panel a {
            display: block;
            padding: 9px 20px;
            font-size: 13px;
            color: var(--text);
            transition: var(--transition);
        }

        .dropdown-panel a:hover {
            background: var(--bg-secondary);
            color: var(--primary);
        }

        .dropdown-panel a.active {
            color: var(--primary);
            font-weight: 600;
            background: var(--bg-secondary);
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border);
            padding: 10px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
            list-style: none;
            margin: 0;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .breadcrumb li+li::before {
            content: '/';
            color: var(--divider);
            font-size: 12px;
        }

        .breadcrumb a {
            color: var(--text-secondary);
        }

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

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

        /* Category Hero */
        .category-hero {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            padding: 40px 0 48px;
        }

        .category-hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .category-hero-text h1 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.35;
            margin-bottom: 16px;
        }

        .category-hero-text .intro {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 20px;
        }

        .category-hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            background: var(--bg-secondary);
            color: var(--text-secondary);
            border: 1px solid var(--border);
        }

        .badge.badge-primary {
            background: var(--primary);
            color: var(--white);
            border-color: var(--primary);
        }

        .badge.badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
            border-color: var(--accent);
        }

        .badge.badge-success {
            background: #E8F5EE;
            color: var(--success);
            border-color: #B8DCC8;
        }

        .category-hero-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card-hover);
        }

        .category-hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 260px;
        }

        /* Data List Section */
        .data-list-section {
            background: var(--bg);
        }

        .data-list-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 24px;
        }

        .data-list-header .section-title {
            margin-bottom: 4px;
        }

        .data-list-header .update-info {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .data-entry-list {
            background: var(--white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .data-entry-item {
            display: grid;
            grid-template-columns: 110px 1fr auto;
            gap: 16px;
            padding: 16px 20px;
            border-bottom: 1px solid var(--divider);
            align-items: center;
            transition: var(--transition);
        }

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

        .data-entry-item:hover {
            background: var(--bg-secondary);
        }

        .data-entry-date {
            font-size: 13px;
            color: var(--text-secondary);
            font-family: var(--font-num);
            letter-spacing: .02em;
        }

        .data-entry-content h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 6px;
        }

        .data-entry-content .summary {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .data-entry-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .data-entry-tags .tag {
            font-size: 11px;
            padding: 2px 8px;
            border-radius: var(--radius-badge);
            background: var(--bg-secondary);
            color: var(--text-secondary);
            border: 1px solid var(--border);
        }

        .data-entry-arrow {
            color: var(--divider);
            font-size: 14px;
            transition: var(--transition);
        }

        .data-entry-item:hover .data-entry-arrow {
            color: var(--primary);
            transform: translateX(4px);
        }

        .view-more-link {
            display: inline-block;
            margin-top: 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }

        .view-more-link:hover {
            color: var(--accent-dark);
        }

        .view-more-link i {
            margin-left: 4px;
            font-size: 12px;
        }

        /* Deep Intro Section */
        .deep-intro-section {
            background: var(--bg-secondary);
        }

        .deep-intro-content {
            max-width: 820px;
        }

        .deep-intro-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin: 24px 0 10px;
        }

        .deep-intro-content h3:first-child {
            margin-top: 0;
        }

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

        .deep-intro-content ul {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
        }

        .deep-intro-content ul li {
            position: relative;
            padding-left: 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 8px;
        }

        .deep-intro-content ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 12px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        /* Featured Section */
        .featured-section {
            background: var(--white);
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

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

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

        .featured-card-image {
            height: 160px;
            overflow: hidden;
        }

        .featured-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .featured-card:hover .featured-card-image img {
            transform: scale(1.03);
        }

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

        .featured-card-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .featured-card-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .featured-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* Tools Section */
        .tools-section {
            background: var(--bg);
        }

        .tools-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .tool-card {
            background: var(--white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 20px 22px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }

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

        .tool-card-icon {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            background: var(--primary);
            color: var(--white);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

        .tool-card-body h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .tool-card-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }

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

        .faq-list {
            max-width: 820px;
        }

        .faq-item {
            background: var(--white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--divider);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            transition: var(--transition);
            line-height: 1.6;
        }

        .faq-question:hover {
            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: var(--bg-secondary);
            color: var(--text-secondary);
            font-size: 12px;
            transition: var(--transition);
        }

        .faq-item.active .faq-question .faq-icon {
            background: var(--primary);
            color: var(--white);
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease, padding .4s ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.9;
            padding-left: 10px;
            border-left: 2px solid var(--primary);
            margin: 0;
        }

        /* CTA Section */
        .cta-section {
            background: var(--primary-dark);
            padding: 64px 0;
        }

        .cta-inner {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--white);
            line-height: 1.4;
            margin-bottom: 14px;
        }

        .cta-inner p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.9;
            margin-bottom: 28px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            line-height: 1.5;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--white);
            box-shadow: var(--shadow-btn-accent);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(217, 142, 50, 0.3);
            transform: translateY(-1px);
        }

        .btn-secondary {
            background: transparent;
            color: var(--white);
            border: 1px solid rgba(255, 255, 255, 0.4);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--white);
            color: var(--white);
            transform: translateY(-1px);
        }

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

        .btn-outline-primary:hover {
            background: #E8F0EC;
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .cta-trust {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .cta-trust span {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .cta-trust i {
            font-size: 14px;
            color: var(--accent);
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 0;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 12px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }

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

        .fb-links a {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }

        .fb-links a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .category-hero-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .category-hero-image {
                max-height: 300px;
            }

            .category-hero-image img {
                min-height: auto;
            }

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

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

        @media (max-width: 768px) {
            .header-inner {
                height: 60px;
            }

            .nav-toggle {
                display: block;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: stretch;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-card-hover);
                max-height: calc(100vh - 60px);
                overflow-y: auto;
                padding: 8px 0;
            }

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

            .main-nav>li {
                width: 100%;
            }

            .main-nav>li>a {
                padding: 12px 24px;
                font-size: 15px;
            }

            .main-nav>li>a:hover::after,
            .main-nav>li>a.active::after {
                display: none;
            }

            .main-nav>li.has-dropdown>a::before {
                transform: rotate(45deg) translateY(-3px);
            }

            .dropdown-panel {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                border: none;
                padding: 0 0 0 24px;
                min-width: 0;
                display: none;
                background: var(--bg-secondary);
                border-radius: 0;
            }

            .main-nav>li.has-dropdown.open .dropdown-panel {
                display: block;
            }

            .dropdown-panel a {
                padding: 10px 24px;
                font-size: 14px;
            }

            .data-entry-item {
                grid-template-columns: 1fr;
                gap: 6px;
                padding: 14px 16px;
            }

            .data-entry-date {
                font-size: 12px;
            }

            .data-entry-arrow {
                display: none;
            }

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

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

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .cta-inner h2 {
                font-size: 22px;
            }

            .section-title {
                font-size: 21px;
            }
        }

        @media (max-width: 520px) {
            .container-wide {
                padding: 0 14px;
            }

            section {
                padding: 36px 0;
            }

            .category-hero {
                padding: 28px 0 36px;
            }

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

            .category-hero-meta {
                gap: 6px;
            }

            .badge {
                font-size: 11px;
                padding: 3px 10px;
            }

            .data-list-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .btn {
                width: 100%;
                justify-content: center;
                max-width: 280px;
            }

            .tool-card {
                flex-direction: column;
                align-items: flex-start;
            }

            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }

            .faq-answer p {
                font-size: 13px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1B4D3E;
            --primary-dark: #142E26;
            --primary-light: #2E5F50;
            --accent: #D98E32;
            --accent-dark: #C07624;
            --accent-light: #F7EEE0;
            --bg: #F7F5F0;
            --bg-secondary: #EDEFEA;
            --text: #232A27;
            --text-secondary: #5B6560;
            --border: #E0E4DE;
            --divider: #D5DBD4;
            --success: #2E7D5A;
            --warning: #C07624;
            --white: #FFFFFF;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 8px rgba(35,42,39,.06);
            --shadow-card-hover: 0 6px 20px rgba(35,42,39,.12);
            --shadow-btn-accent: 0 2px 10px rgba(217,142,50,.2);
            --font-cn: 'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
            --font-num: 'Inter','Roboto',system-ui,sans-serif;
            --transition: all .25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-cn);
            font-size: 15px;
            line-height: 1.85;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            margin: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: 56px 0;
        }
        .section-tag {
            display: inline-block;
            background: var(--primary);
            color: var(--white);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .08em;
            padding: 4px 14px;
            border-radius: 50px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 14px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 32px;
            max-width: 820px;
        }
        /* Header */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(35,42,39,.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }
        .logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--white);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .logo:hover {
            color: var(--primary-dark);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .main-nav>li {
            position: relative;
        }
        .main-nav>li>a {
            display: block;
            padding: 24px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .main-nav>li>a:hover,
        .main-nav>li>a.active {
            color: var(--primary);
        }
        .main-nav>li>a:hover::after,
        .main-nav>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .has-dropdown>a .dropdown-arrow {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-right: 1.5px solid currentColor;
            border-bottom: 1.5px solid currentColor;
            transform: rotate(45deg) translateY(-3px);
            margin-left: 8px;
            transition: var(--transition);
        }
        .has-dropdown:hover>a .dropdown-arrow {
            transform: rotate(225deg) translateY(-1px);
        }
        .dropdown-panel {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 200px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 8px;
            box-shadow: var(--shadow-card-hover);
            padding: 8px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all .25s ease;
            z-index: 50;
        }
        .has-dropdown:hover .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .dropdown-panel a {
            display: block;
            padding: 9px 20px;
            font-size: 13px;
            color: var(--text);
            transition: var(--transition);
        }
        .dropdown-panel a:hover {
            background: var(--bg-secondary);
            color: var(--primary);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border);
            color: var(--text);
            border-radius: 6px;
            padding: 8px 12px;
            font-size: 18px;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-secondary);
            color: var(--primary);
        }
        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li+li::before {
            content: '/';
            color: var(--divider);
            font-size: 12px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        /* Hero Page Intro */
        .page-intro {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            padding: 40px 0 32px;
        }
        .page-intro h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .page-intro .intro-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 820px;
        }
        /* List Cards */
        .data-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .data-list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .data-list-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .data-list-item .item-date {
            flex-shrink: 0;
            min-width: 80px;
            text-align: center;
            background: var(--bg-secondary);
            border-radius: 8px;
            padding: 10px 8px;
        }
        .data-list-item .item-date .day {
            font-family: var(--font-num);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .data-list-item .item-date .month {
            font-size: 12px;
            color: var(--text-secondary);
        }
        .data-list-item .item-content {
            flex: 1;
            min-width: 0;
        }
        .data-list-item .item-content h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .data-list-item .item-content .item-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 8px;
        }
        .data-list-item .item-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .item-tags .tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 12px;
            font-weight: 500;
            padding: 2px 10px;
            border-radius: 50px;
        }
        .item-tags .tag.green {
            background: var(--bg-secondary);
            color: var(--primary);
        }
        .item-tags .tag.grey {
            background: var(--bg);
            color: var(--text-secondary);
        }
        .view-more-row {
            margin-top: 20px;
            text-align: center;
        }
        /* Deep Content */
        .deep-content {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            box-shadow: var(--shadow-card);
        }
        .deep-content h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .deep-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin: 24px 0 10px;
            line-height: 1.5;
        }
        .deep-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 14px;
        }
        .deep-content ul {
            list-style: none;
            padding: 0;
            margin: 12px 0;
        }
        .deep-content ul li {
            padding-left: 20px;
            position: relative;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 6px;
        }
        .deep-content ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }
        .deep-image-wrap {
            margin: 20px 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .deep-image-wrap img {
            width: 100%;
            object-fit: cover;
        }
        /* Featured Cards */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }
        .featured-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }
        .featured-card .fc-img {
            height: 170px;
            overflow: hidden;
        }
        .featured-card .fc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .featured-card:hover .fc-img img {
            transform: scale(1.03);
        }
        .featured-card .fc-body {
            padding: 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .featured-card .fc-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .featured-card .fc-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
            flex: 1;
        }
        .featured-card .fc-body .fc-meta {
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        /* Tools */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 18px;
        }
        .tool-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }
        .tool-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .tool-card .tool-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: var(--white);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .tool-card .tool-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .tool-card .tool-info p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }
        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-list details {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 0;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-list details[open] {
            border-left: 3px solid var(--primary);
            box-shadow: var(--shadow-card);
        }
        .faq-list summary {
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--text);
            padding: 16px 20px;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            user-select: none;
            transition: var(--transition);
        }
        .faq-list summary::-webkit-details-marker {
            display: none;
        }
        .faq-list summary::after {
            content: '+';
            font-size: 20px;
            font-weight: 300;
            color: var(--text-secondary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-list details[open] summary::after {
            content: '−';
            color: var(--primary);
        }
        .faq-list summary:hover {
            background: var(--bg-secondary);
            color: var(--primary);
        }
        .faq-list .faq-answer {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.85;
        }
        /* CTA */
        .cta-section {
            background: var(--primary-dark);
            border-radius: var(--radius-card);
            padding: 48px 36px;
            text-align: center;
            color: var(--white);
        }
        .cta-section h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--white);
        }
        .cta-section p {
            font-size: 15px;
            color: rgba(255,255,255,.8);
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-primary {
            display: inline-block;
            background: var(--accent);
            color: var(--white);
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            box-shadow: var(--shadow-btn-accent);
            transition: var(--transition);
            text-align: center;
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(217,142,50,.3);
        }
        .btn-secondary {
            display: inline-block;
            background: transparent;
            color: var(--primary);
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn-secondary:hover {
            background: var(--bg-secondary);
            color: var(--primary-dark);
        }
        .cta-section .btn-primary {
            background: var(--accent);
            box-shadow: var(--shadow-btn-accent);
        }
        .cta-section .btn-secondary {
            border-color: rgba(255,255,255,.6);
            color: var(--white);
            margin-left: 10px;
        }
        .cta-section .btn-secondary:hover {
            background: rgba(255,255,255,.1);
            color: var(--white);
        }
        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,.8);
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255,255,255,.7);
            margin-bottom: 0;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 12px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: rgba(255,255,255,.7);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,.15);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            font-size: 12px;
            color: rgba(255,255,255,.55);
            align-items: center;
            justify-content: space-between;
        }
        .footer-bottom .fb-links {
            display: flex;
            gap: 16px;
        }
        .footer-bottom .fb-links a {
            color: rgba(255,255,255,.7);
            font-size: 12px;
        }
        .footer-bottom .fb-links a:hover {
            color: var(--accent);
        }
        /* Responsive */
        @media screen and (max-width: 1024px) {
            .nav-toggle {
                display: block;
            }
            #mainNav {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--white);
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-card-hover);
                max-height: calc(100vh - 68px);
                overflow-y: auto;
                z-index: 90;
            }
            #mainNav.open {
                display: block;
            }
            .main-nav {
                flex-direction: column;
                align-items: stretch;
                padding: 8px 0;
            }
            .main-nav>li>a {
                padding: 14px 20px;
                border-bottom: 1px solid var(--bg-secondary);
            }
            .main-nav>li>a:hover::after,
            .main-nav>li>a.active::after {
                display: none;
            }
            .main-nav>li>a.active {
                background: var(--bg-secondary);
                color: var(--primary);
            }
            .dropdown-panel {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                border: none;
                box-shadow: none;
                padding: 0 0 0 20px;
                min-width: auto;
                border-radius: 0;
                display: none;
            }
            .has-dropdown.dropdown-open .dropdown-panel {
                display: block;
            }
            .dropdown-panel a {
                padding: 10px 20px;
                border-bottom: 1px solid var(--bg-secondary);
                font-size: 13px;
            }
            .has-dropdown>a .dropdown-arrow {
                transform: rotate(45deg) translateY(-3px);
                transition: var(--transition);
            }
            .has-dropdown.dropdown-open>a .dropdown-arrow {
                transform: rotate(225deg) translateY(-1px);
            }
        }
        @media screen and (max-width: 768px) {
            .container-wide {
                padding: 0 16px;
            }
            section {
                padding: 40px 0;
            }
            .page-intro h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 21px;
            }
            .deep-content {
                padding: 20px;
            }
            .data-list-item {
                flex-direction: column;
                gap: 10px;
                padding: 14px;
            }
            .data-list-item .item-date {
                min-width: auto;
                display: flex;
                align-items: center;
                gap: 8px;
                text-align: left;
                padding: 6px 12px;
            }
            .data-list-item .item-date .day {
                font-size: 18px;
            }
            .featured-grid,
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section .btn-secondary {
                margin-left: 0;
                margin-top: 10px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }
        @media screen and (max-width: 520px) {
            .header-inner {
                height: 60px;
                padding: 0 12px;
            }
            .logo {
                font-size: 17px;
            }
            .logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }
            #mainNav {
                top: 60px;
                max-height: calc(100vh - 60px);
            }
            .page-intro {
                padding: 28px 0 24px;
            }
            .page-intro h1 {
                font-size: 22px;
            }
            .breadcrumb-bar {
                padding: 8px 0;
            }
            .breadcrumb {
                font-size: 12px;
            }
            .data-list-item .item-content h3 {
                font-size: 15px;
            }
            .data-list-item .item-content .item-summary {
                font-size: 13px;
            }
            .deep-content h2 {
                font-size: 18px;
            }
            .deep-content h3 {
                font-size: 16px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1B4D3E;
            --primary-dark: #142E26;
            --primary-light: #2E5F50;
            --accent: #D98E32;
            --accent-dark: #C07624;
            --accent-light: #F7EEE0;
            --bg: #F7F5F0;
            --bg-secondary: #EDEFEA;
            --text: #232A27;
            --text-secondary: #5B6560;
            --border: #E0E4DE;
            --divider: #D5DBD4;
            --success: #2E7D5A;
            --warning: #C07624;
            --white: #FFFFFF;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 8px rgba(35, 42, 39, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(35, 42, 39, 0.12);
            --shadow-btn-accent: 0 2px 10px rgba(217, 142, 50, 0.2);
            --font-cn: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
            --font-num: 'Inter', 'Roboto', system-ui, sans-serif;
            --transition: all .25s ease;
        }

        * {
            box-sizing: border-box;
        }

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

        body {
            font-family: var(--font-cn);
            font-size: 15px;
            line-height: 1.85;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }

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

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

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

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

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

        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: 64px 0;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary);
            color: var(--white);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .08em;
            padding: 4px 14px;
            border-radius: 50px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 14px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 32px;
            max-width: 820px;
        }

        /* Header */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(35, 42, 39, 0.04);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }

        .logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--white);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .main-nav>li {
            position: relative;
        }

        .main-nav>li>a {
            display: block;
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            border-radius: 4px;
            transition: var(--transition);
            position: relative;
        }

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

        .main-nav>li>a:hover::after,
        .main-nav>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .main-nav>li.has-dropdown>a::after {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            border-right: 1.5px solid currentColor;
            border-bottom: 1.5px solid currentColor;
            transform: rotate(45deg) translateY(-3px);
            margin-right: 8px;
            transition: var(--transition);
        }

        .main-nav>li.has-dropdown:hover>a::after {
            transform: rotate(225deg) translateY(-1px);
        }

        .dropdown-panel {
            position: absolute;
            top: 100%;
            left: 0;
            background: var(--white);
            border-radius: 8px;
            box-shadow: var(--shadow-card-hover);
            padding: 8px 0;
            min-width: 180px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: var(--transition);
            border: 1px solid var(--border);
            z-index: 200;
        }

        .main-nav>li.has-dropdown:hover .dropdown-panel,
        .main-nav>li.has-dropdown:focus-within .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-panel a {
            display: block;
            padding: 9px 20px;
            font-size: 13px;
            color: var(--text);
            transition: var(--transition);
        }

        .dropdown-panel a:hover {
            background: var(--bg-secondary);
            color: var(--primary);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text);
            cursor: pointer;
            padding: 8px 12px;
            border-radius: var(--radius-btn);
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .breadcrumb li+li::before {
            content: '/';
            color: var(--divider);
            margin-right: 2px;
        }

        .breadcrumb a {
            color: var(--text-secondary);
        }

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

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

        /* Category page hero */
        .category-hero {
            background: var(--white);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border);
        }

        .category-hero h1 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .category-hero .intro-text {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 860px;
        }

        /* Data insight list */
        .insight-list {
            background: var(--bg);
        }

        .insight-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 26px;
            margin-bottom: 16px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }

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

        .insight-item .date-block {
            flex-shrink: 0;
            width: 64px;
            text-align: center;
            background: var(--bg-secondary);
            border-radius: var(--radius-btn);
            padding: 10px 8px;
        }

        .insight-item .date-block .day {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-num);
            line-height: 1.2;
        }

        .insight-item .date-block .month {
            font-size: 12px;
            color: var(--text-secondary);
        }

        .insight-item .item-content {
            flex: 1;
        }

        .insight-item .item-content h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.5;
        }

        .insight-item .item-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 0 10px;
        }

        .insight-item .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 500;
            line-height: 1.6;
        }

        .badge-primary {
            background: var(--bg-secondary);
            color: var(--primary);
        }

        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }

        .badge-outline {
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border);
        }

        /* Deep intro */
        .deep-intro {
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .deep-intro .section-title {
            font-size: 24px;
        }

        .deep-intro .content-body {
            max-width: 860px;
        }

        .deep-intro .content-body p {
            font-size: 15px;
            line-height: 2;
            color: var(--text);
            margin-bottom: 1.5em;
        }

        .deep-intro .content-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin: 1.8em 0 0.8em;
        }

        /* Featured items */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

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

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

        .featured-card .card-img {
            height: 160px;
            overflow: hidden;
            background: var(--bg-secondary);
        }

        .featured-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .featured-card .card-body {
            padding: 18px 20px;
        }

        .featured-card .card-body h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.5;
        }

        .featured-card .card-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* Tools */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .tool-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            display: flex;
            gap: 16px;
            align-items: center;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

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

        .tool-card .tool-icon {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            background: var(--bg-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 22px;
            flex-shrink: 0;
        }

        .tool-card .tool-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 4px;
        }

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

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

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .faq-item details summary {
            padding: 16px 20px;
            font-weight: 600;
            font-size: 15px;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .faq-item details summary::-webkit-details-marker {
            display: none;
        }

        .faq-item details summary::after {
            content: '+';
            font-size: 20px;
            color: var(--text-secondary);
            transition: var(--transition);
            margin-left: 8px;
        }

        .faq-item details[open] summary::after {
            content: '−';
            color: var(--primary);
        }

        .faq-item details .faq-answer {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-left: 2px solid var(--primary);
            margin-left: 20px;
        }

        /* CTA */
        .cta-section {
            background: var(--primary-dark);
            padding: 56px 0;
        }

        .cta-section .section-title {
            color: var(--white);
        }

        .cta-section .section-desc {
            color: rgba(255, 255, 255, 0.75);
        }

        .btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
            line-height: 1.5;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--white);
            box-shadow: var(--shadow-btn-accent);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--white);
        }

        .btn-secondary {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
        }

        .btn-secondary:hover {
            background: #E8F0EC;
            color: var(--primary);
        }

        .btn-light {
            background: var(--white);
            color: var(--primary);
        }

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

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            color: var(--white);
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 10px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            margin: 0;
        }

        .footer-col h4 {
            color: var(--white);
            font-size: 14px;
            font-weight: 600;
            margin: 0 0 12px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 16px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom .fb-links {
            display: flex;
            gap: 12px;
        }

        .footer-bottom .fb-links a {
            color: rgba(255, 255, 255, 0.7);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-card-hover);
                padding: 8px 16px;
                z-index: 150;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav>li {
                width: 100%;
            }
            .main-nav>li>a {
                padding: 12px 4px;
                font-size: 15px;
            }
            .main-nav>li>a:hover::after,
            .main-nav>li>a.active::after {
                display: none;
            }
            .dropdown-panel {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                border: none;
                padding: 0 0 0 16px;
                min-width: auto;
                display: none;
            }
            .main-nav>li.has-dropdown:hover .dropdown-panel,
            .main-nav>li.has-dropdown:focus-within .dropdown-panel {
                display: block;
            }
            .main-nav>li.has-dropdown:hover>a::after {
                transform: rotate(225deg) translateY(-1px);
            }
            .category-hero {
                padding: 32px 0 28px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .insight-item {
                flex-direction: column;
                gap: 12px;
                padding: 18px 16px;
            }
            .insight-item .date-block {
                width: auto;
                display: flex;
                gap: 6px;
                align-items: baseline;
                background: none;
                padding: 0;
            }
            .insight-item .date-block .day {
                font-size: 18px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
            section {
                padding: 40px 0;
            }
            .container-wide {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 21px;
            }
            .btn {
                padding: 8px 16px;
                font-size: 13px;
            }
            .tool-card {
                flex-direction: column;
                text-align: center;
                align-items: flex-start;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1B4D3E;
            --primary-dark: #142E26;
            --primary-light: #2E5F50;
            --accent: #D98E32;
            --accent-dark: #C07624;
            --accent-light: #F7EEE0;
            --bg: #F7F5F0;
            --bg-secondary: #EDEFEA;
            --text: #232A27;
            --text-secondary: #5B6560;
            --border: #E0E4DE;
            --divider: #D5DBD4;
            --success: #2E7D5A;
            --warning: #C07624;
            --white: #FFFFFF;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 8px rgba(35, 42, 39, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(35, 42, 39, 0.12);
            --shadow-btn-accent: 0 2px 10px rgba(217, 142, 50, 0.2);
            --font-cn: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
            --font-num: 'Inter', 'Roboto', system-ui, sans-serif;
            --transition: all .25s ease;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-cn);
            font-size: 15px;
            line-height: 1.85;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            margin: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .container-wide {
                padding: 0 16px;
            }
        }
        section {
            padding: 64px 0;
        }
        @media (max-width: 640px) {
            section {
                padding: 40px 0;
            }
        }
        .section-tag {
            display: inline-block;
            background: var(--primary);
            color: var(--white);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .08em;
            padding: 4px 14px;
            border-radius: 50px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 14px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 32px;
            max-width: 820px;
        }
        /* Header */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(35, 42, 39, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }
        .logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--white);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .logo:hover {
            color: var(--primary-dark);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .main-nav>li {
            position: relative;
        }
        .main-nav>li>a {
            display: block;
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            border-radius: 4px;
            transition: var(--transition);
            position: relative;
        }
        .main-nav>li>a:hover,
        .main-nav>li>a.active {
            color: var(--primary);
        }
        .main-nav>li>a:hover::after,
        .main-nav>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .main-nav>li.has-dropdown>a::after {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            border-right: 1.5px solid currentColor;
            border-bottom: 1.5px solid currentColor;
            transform: rotate(45deg) translateY(-3px);
            margin-right: 8px;
            transition: var(--transition);
        }
        .main-nav>li.has-dropdown:hover>a::after,
        .main-nav>li.has-dropdown:focus-within>a::after {
            transform: rotate(225deg) translateY(-1px);
        }
        .dropdown-panel {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 220px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 8px;
            box-shadow: var(--shadow-card-hover);
            padding: 8px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: var(--transition);
            z-index: 200;
        }
        .main-nav>li.has-dropdown:hover .dropdown-panel,
        .main-nav>li.has-dropdown:focus-within .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .dropdown-panel a {
            display: block;
            padding: 9px 20px;
            font-size: 13px;
            color: var(--text);
            transition: var(--transition);
        }
        .dropdown-panel a:hover {
            background: var(--bg-secondary);
            color: var(--primary);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }
        /* Breadcrumb */
        .breadcrumb-wrap {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: var(--divider);
            font-size: 12px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb li:last-child {
            color: var(--primary);
            font-weight: 500;
        }
        /* Category Hero */
        .cat-hero {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            padding: 40px 0 32px;
        }
        .cat-hero h1 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.35;
            margin-bottom: 12px;
        }
        .cat-hero p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 880px;
            margin: 0;
        }
        /* Info Card List */
        .info-list-section {
            background: var(--bg);
        }
        .info-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .info-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            padding: 18px 20px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .info-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .info-item .info-date {
            flex-shrink: 0;
            width: 84px;
            background: var(--bg-secondary);
            border-radius: 8px;
            padding: 8px 10px;
            text-align: center;
            font-family: var(--font-num);
            color: var(--primary);
            font-weight: 600;
            font-size: 13px;
            line-height: 1.4;
        }
        .info-item .info-content {
            flex: 1;
        }
        .info-item .info-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .info-item .info-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 10px;
        }
        .info-item .info-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            line-height: 1.5;
        }
        .badge-green {
            background: #E8F0EC;
            color: var(--primary);
        }
        .badge-amber {
            background: var(--accent-light);
            color: var(--accent-dark);
        }
        .badge-gray {
            background: var(--bg-secondary);
            color: var(--text-secondary);
        }
        .badge-red {
            background: #FBE9E7;
            color: #B5412D;
        }
        /* Deep Article */
        .deep-section {
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .deep-article {
            max-width: 860px;
            font-size: 15px;
            line-height: 2.0;
            color: var(--text);
        }
        .deep-article h2 {
            font-size: 21px;
            font-weight: 700;
            margin: 28px 0 14px;
            color: var(--text);
            line-height: 1.45;
        }
        .deep-article h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 24px 0 10px;
            color: var(--primary);
            line-height: 1.5;
        }
        .deep-article p {
            margin: 0 0 16px;
            color: var(--text);
        }
        .deep-article ul {
            margin: 0 0 16px;
            padding-left: 20px;
            color: var(--text);
        }
        .deep-article li {
            margin-bottom: 8px;
        }
        .deep-article blockquote {
            border-left: 3px solid var(--accent);
            background: var(--accent-light);
            padding: 12px 16px;
            border-radius: 0 8px 8px 0;
            margin: 0 0 16px;
            color: var(--text-secondary);
            font-size: 14px;
        }
        /* Featured */
        .featured-section {
            background: var(--bg-secondary);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }
        .featured-card img {
            width: 100%;
            height: 150px;
            object-fit: cover;
        }
        .featured-card .featured-body {
            padding: 14px 16px;
            flex: 1;
        }
        .featured-card .featured-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 6px;
        }
        .featured-card .featured-summary {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .featured-card .featured-date {
            font-size: 12px;
            color: var(--text-secondary);
            font-family: var(--font-num);
        }
        /* Tools */
        .tools-section {
            background: var(--white);
        }
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .tool-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            transition: var(--transition);
            text-align: left;
        }
        .tool-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary-light);
        }
        .tool-card .tool-icon {
            width: 42px;
            height: 42px;
            background: var(--primary);
            color: var(--white);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
        }
        .tool-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .tool-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        /* FAQ */
        .faq-section {
            background: var(--bg);
        }
        .faq-list {
            max-width: 840px;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 8px;
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            padding: 16px 18px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            padding: 0 18px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 18px 16px;
            border-left: 2px solid var(--primary);
        }
        /* CTA */
        .cta-section {
            background: var(--primary-dark);
            padding: 56px 0;
        }
        .cta-inner {
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            color: var(--white);
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            margin-bottom: 24px;
            line-height: 1.8;
        }
        .btn {
            display: inline-block;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
            line-height: 1.5;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--white);
            box-shadow: var(--shadow-btn-accent);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--white);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--white);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--white);
            border-color: var(--white);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-outline:hover {
            background: #E8F0EC;
            color: var(--primary-dark);
        }
        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand h3 {
            color: var(--white);
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            margin: 0;
        }
        .footer-col h4 {
            color: var(--white);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            padding: 16px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            align-items: center;
        }
        .footer-bottom .fb-links {
            margin-left: auto;
            display: flex;
            gap: 16px;
        }
        .footer-bottom .fb-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 12px;
        }
        .footer-bottom .fb-links a:hover {
            color: var(--accent);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tools-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: stretch;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-card-hover);
                max-height: 80vh;
                overflow-y: auto;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav>li {
                border-bottom: 1px solid var(--border);
            }
            .main-nav>li>a {
                padding: 14px 16px;
            }
            .main-nav>li>a:hover::after,
            .main-nav>li>a.active::after {
                display: none;
            }
            .dropdown-panel {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                border: none;
                border-top: 1px solid var(--border);
                border-radius: 0;
                padding: 0;
                background: var(--bg-secondary);
            }
            .dropdown-panel a {
                padding: 10px 30px;
            }
            .main-nav>li.has-dropdown>a::after {
                float: right;
                margin-top: 6px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-bottom .fb-links {
                margin-left: 0;
            }
        }
        @media (max-width: 640px) {
            .featured-grid,
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .cat-hero h1 {
                font-size: 24px;
            }
            .info-item {
                flex-direction: column;
                gap: 10px;
            }
            .info-item .info-date {
                width: auto;
                display: inline-block;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

/* roulang page: category4 */
:root {
        --primary: #1B4D3E;
        --primary-dark: #142E26;
        --primary-light: #2E5F50;
        --accent: #D98E32;
        --accent-dark: #C07624;
        --accent-light: #F7EEE0;
        --bg: #F7F5F0;
        --bg-secondary: #EDEFEA;
        --text: #232A27;
        --text-secondary: #5B6560;
        --border: #E0E4DE;
        --divider: #D5DBD4;
        --success: #2E7D5A;
        --warning: #C07624;
        --white: #FFFFFF;
        --radius-card: 10px;
        --radius-btn: 6px;
        --radius-badge: 4px;
        --shadow-card: 0 2px 8px rgba(35, 42, 39, 0.06);
        --shadow-card-hover: 0 6px 20px rgba(35, 42, 39, 0.12);
        --shadow-btn-accent: 0 2px 10px rgba(217, 142, 50, 0.2);
        --font-cn: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
        --font-num: 'Inter', 'Roboto', system-ui, sans-serif;
        --transition: all .25s ease;
    }

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

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

    body {
        font-family: var(--font-cn);
        font-size: 15px;
        line-height: 1.85;
        color: var(--text);
        background: var(--bg);
        min-height: 100vh;
        margin: 0;
    }

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

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

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

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

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

    .container-wide {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }

    .container-narrow {
        max-width: 860px;
        margin: 0 auto;
        padding: 0 24px;
    }

    section {
        padding: 64px 0;
    }

    .section-tag {
        display: inline-block;
        background: var(--primary);
        color: var(--white);
        font-size: 12px;
        font-weight: 600;
        letter-spacing: .08em;
        padding: 4px 14px;
        border-radius: 50px;
        text-transform: uppercase;
        margin-bottom: 12px;
    }

    .section-title {
        font-size: 26px;
        font-weight: 700;
        color: var(--text);
        line-height: 1.4;
        margin-bottom: 14px;
    }

    .section-desc {
        font-size: 15px;
        color: var(--text-secondary);
        line-height: 1.9;
        margin-bottom: 32px;
        max-width: 820px;
    }

    /* Header & Navigation */
    .site-header {
        background: var(--white);
        border-bottom: 1px solid var(--border);
        position: sticky;
        top: 0;
        z-index: 100;
        box-shadow: 0 1px 4px rgba(35, 42, 39, 0.04);
    }

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

    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 700;
        color: var(--primary);
        white-space: nowrap;
    }

    .logo .logo-icon {
        width: 36px;
        height: 36px;
        background: var(--primary);
        color: var(--white);
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
    }

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

    .main-nav {
        display: flex;
        align-items: center;
        gap: 0;
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .main-nav>li {
        position: relative;
    }

    .main-nav>li>a {
        display: block;
        padding: 10px 16px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text);
        border-radius: 4px;
        transition: var(--transition);
        position: relative;
    }

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

    .main-nav>li>a:hover::after,
    .main-nav>li>a.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 16px;
        right: 16px;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
    }

    .has-dropdown>a::before {
        content: '';
        display: inline-block;
        width: 8px;
        height: 8px;
        border-right: 1.5px solid currentColor;
        border-bottom: 1.5px solid currentColor;
        transform: rotate(45deg) translateY(-3px);
        margin-right: 8px;
        transition: var(--transition);
    }

    .has-dropdown:hover>a::before,
    .has-dropdown:focus-within>a::before {
        transform: rotate(225deg) translateY(-1px);
    }

    .dropdown-panel {
        position: absolute;
        top: 100%;
        left: 0;
        min-width: 180px;
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: 8px;
        box-shadow: var(--shadow-card-hover);
        padding: 8px 0;
        opacity: 0;
        visibility: hidden;
        transform: translateY(4px);
        transition: var(--transition);
        z-index: 50;
        list-style: none;
        margin: 0;
    }

    .has-dropdown:hover .dropdown-panel,
    .has-dropdown:focus-within .dropdown-panel {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .dropdown-panel a {
        display: block;
        padding: 9px 20px;
        font-size: 13px;
        color: var(--text);
        transition: var(--transition);
    }

    .dropdown-panel a:hover {
        background: var(--bg-secondary);
        color: var(--primary);
    }

    .dropdown-panel a.active {
        color: var(--primary);
        font-weight: 600;
        background: var(--accent-light);
    }

    .nav-toggle {
        display: none;
        background: none;
        border: none;
        font-size: 22px;
        color: var(--primary);
        cursor: pointer;
        padding: 8px;
        min-width: 44px;
        min-height: 44px;
        align-items: center;
        justify-content: center;
    }

    /* Breadcrumb */
    .breadcrumb-bar {
        background: var(--white);
        border-bottom: 1px solid var(--divider);
        padding: 12px 0;
    }

    .breadcrumbs {
        display: flex;
        align-items: center;
        gap: 8px;
        list-style: none;
        margin: 0;
        padding: 0;
        font-size: 13px;
        color: var(--text-secondary);
    }

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

    .breadcrumbs li:not(:last-child)::after {
        content: '›';
        color: var(--text-secondary);
        font-weight: 600;
    }

    .breadcrumbs a {
        color: var(--primary);
        font-weight: 500;
    }

    .breadcrumbs .current {
        color: var(--text-secondary);
        font-weight: 400;
    }

    /* Hero for category page */
    .cat-hero {
        background: var(--white);
        padding: 48px 0 40px;
        border-bottom: 1px solid var(--divider);
    }

    .cat-hero-grid {
        display: flex;
        align-items: center;
        gap: 40px;
        flex-wrap: wrap;
    }

    .cat-hero-text {
        flex: 1 1 55%;
        min-width: 300px;
    }

    .cat-hero-text h1 {
        font-size: 32px;
        font-weight: 700;
        color: var(--text);
        line-height: 1.3;
        margin: 0 0 16px;
    }

    .cat-hero-text .cat-desc {
        font-size: 15px;
        color: var(--text-secondary);
        line-height: 1.9;
        margin-bottom: 24px;
    }

    .cat-hero-img {
        flex: 1 1 38%;
        min-width: 280px;
        border-radius: var(--radius-card);
        overflow: hidden;
        box-shadow: var(--shadow-card);
    }

    .cat-hero-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        aspect-ratio: 16/10;
    }

    .hero-stats {
        display: flex;
        gap: 20px;
        flex-wrap: wrap;
    }

    .hero-stat {
        background: var(--accent-light);
        border-radius: 8px;
        padding: 12px 18px;
        min-width: 100px;
    }

    .hero-stat .stat-num {
        font-family: var(--font-num);
        font-size: 22px;
        font-weight: 700;
        color: var(--primary);
        display: block;
    }

    .hero-stat .stat-label {
        font-size: 12px;
        color: var(--text-secondary);
    }

    /* List section */
    .period-list {
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .period-item {
        display: flex;
        gap: 20px;
        padding: 18px 16px;
        border-bottom: 1px solid var(--divider);
        transition: var(--transition);
        border-radius: 6px;
    }

    .period-item:hover {
        background: var(--bg-secondary);
        cursor: pointer;
    }

    .period-date {
        flex: 0 0 100px;
        font-family: var(--font-num);
        font-weight: 600;
        color: var(--primary);
        font-size: 14px;
        padding-top: 2px;
    }

    .period-info {
        flex: 1;
    }

    .period-info h3 {
        font-size: 16px;
        font-weight: 600;
        color: var(--text);
        margin: 0 0 6px;
        line-height: 1.5;
    }

    .period-info p {
        font-size: 13px;
        color: var(--text-secondary);
        margin: 0;
        line-height: 1.7;
    }

    .period-tags {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
        margin-top: 6px;
    }

    .badge {
        display: inline-block;
        padding: 3px 10px;
        font-size: 12px;
        font-weight: 500;
        border-radius: var(--radius-badge);
        background: var(--bg-secondary);
        color: var(--text-secondary);
    }

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

    .badge-accent {
        background: var(--accent-light);
        color: var(--accent-dark);
    }

    .badge-outline {
        background: transparent;
        border: 1px solid var(--border);
        color: var(--text);
    }

    .more-link {
        display: inline-block;
        margin-top: 20px;
        font-weight: 600;
        font-size: 14px;
        color: var(--primary);
    }

    .more-link:hover {
        color: var(--accent-dark);
    }

    /* Cards */
    .card {
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        transition: var(--transition);
        overflow: hidden;
        height: 100%;
    }

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

    .card-img {
        aspect-ratio: 16/9;
        overflow: hidden;
        background: var(--bg-secondary);
    }

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

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

    .card-body {
        padding: 18px 20px 20px;
    }

    .card-body h3 {
        font-size: 17px;
        font-weight: 600;
        color: var(--text);
        margin: 0 0 8px;
        line-height: 1.5;
    }

    .card-body p {
        font-size: 13px;
        color: var(--text-secondary);
        margin: 0 0 12px;
        line-height: 1.7;
    }

    /* Tool cards */
    .tool-card {
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        padding: 20px;
        box-shadow: var(--shadow-card);
        transition: var(--transition);
        height: 100%;
        display: flex;
        flex-direction: column;
    }

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

    .tool-card .tool-icon {
        width: 44px;
        height: 44px;
        background: var(--accent-light);
        color: var(--accent-dark);
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        margin-bottom: 12px;
        flex-shrink: 0;
    }

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

    .tool-card p {
        font-size: 13px;
        color: var(--text-secondary);
        margin: 0 0 14px;
        flex: 1;
        line-height: 1.7;
    }

    /* Buttons */
    .btn {
        display: inline-block;
        font-size: 14px;
        font-weight: 600;
        padding: 10px 22px;
        border-radius: var(--radius-btn);
        border: 1px solid transparent;
        cursor: pointer;
        transition: var(--transition);
        text-align: center;
        line-height: 1.5;
    }

    .btn-primary {
        background: var(--accent);
        color: var(--white);
        box-shadow: var(--shadow-btn-accent);
    }

    .btn-primary:hover {
        background: var(--accent-dark);
        color: var(--white);
        transform: translateY(-1px);
    }

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

    .btn-secondary:hover {
        background: #E8F0EC;
        color: var(--primary);
        transform: translateY(-1px);
    }

    .btn-sm {
        padding: 7px 14px;
        font-size: 13px;
    }

    /* Insight/Card Grid */
    .insight-card {
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        padding: 20px;
        box-shadow: var(--shadow-card);
        transition: var(--transition);
        height: 100%;
    }

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

    .insight-card h3 {
        font-size: 16px;
        font-weight: 600;
        color: var(--text);
        margin: 0 0 10px;
        line-height: 1.5;
    }

    .insight-card p {
        font-size: 13px;
        color: var(--text-secondary);
        margin: 0 0 12px;
        line-height: 1.75;
    }

    .insight-card .insight-meta {
        font-size: 12px;
        color: var(--text-secondary);
        display: flex;
        gap: 16px;
        align-items: center;
    }

    /* Trend section */
    .trend-bar {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
        align-items: stretch;
    }

    .trend-item {
        flex: 1 1 200px;
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        padding: 20px;
        text-align: center;
        box-shadow: var(--shadow-card);
    }

    .trend-item .trend-num {
        font-family: var(--font-num);
        font-size: 32px;
        font-weight: 700;
        color: var(--primary);
        display: block;
        margin-bottom: 4px;
    }

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

    .trend-item .trend-change {
        font-size: 12px;
        font-weight: 600;
        margin-top: 6px;
        display: inline-block;
        padding: 2px 8px;
        border-radius: var(--radius-badge);
    }

    .trend-up {
        color: var(--success);
        background: rgba(46, 125, 90, 0.1);
    }

    .trend-down {
        color: var(--warning);
        background: rgba(192, 118, 36, 0.1);
    }

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

    .faq-item {
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: 8px;
        margin-bottom: 12px;
        overflow: hidden;
        transition: var(--transition);
    }

    .faq-item:hover {
        border-color: var(--divider);
    }

    .faq-question {
        padding: 16px 20px;
        font-weight: 600;
        cursor: pointer;
        background: var(--white);
        transition: var(--transition);
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-size: 15px;
        color: var(--text);
        gap: 12px;
        user-select: none;
        min-height: 44px;
    }

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

    .faq-question .faq-icon {
        flex-shrink: 0;
        transition: transform .25s ease;
        font-size: 14px;
        color: var(--text-secondary);
    }

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

    .faq-answer {
        padding: 0 20px;
        max-height: 0;
        overflow: hidden;
        transition: max-height .35s ease, padding .3s ease;
        border-left: 2px solid var(--primary);
        margin-left: 18px;
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.8;
    }

    .faq-item.open .faq-answer {
        max-height: 300px;
        padding: 12px 20px 18px;
    }

    /* CTA Section */
    .cta-section {
        background: var(--primary-dark);
        color: var(--white);
        text-align: center;
        padding: 64px 0;
    }

    .cta-section h2 {
        font-size: 26px;
        font-weight: 700;
        color: var(--white);
        margin: 0 0 12px;
        line-height: 1.4;
    }

    .cta-section p {
        font-size: 15px;
        color: rgba(255, 255, 255, 0.8);
        margin: 0 auto 24px;
        max-width: 600px;
        line-height: 1.8;
    }

    .cta-section .btn-primary {
        background: var(--accent);
        color: var(--white);
        box-shadow: none;
    }

    .cta-section .btn-primary:hover {
        background: var(--accent-dark);
    }

    .cta-trust {
        display: flex;
        justify-content: center;
        gap: 24px;
        flex-wrap: wrap;
        margin-top: 20px;
        font-size: 12px;
        color: rgba(255, 255, 255, 0.6);
    }

    .cta-trust span {
        display: flex;
        align-items: center;
        gap: 6px;
    }

    /* Footer */
    .site-footer {
        background: var(--primary-dark);
        color: rgba(255, 255, 255, 0.8);
        padding: 48px 0 24px;
    }

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

    .footer-brand h3 {
        color: var(--white);
        font-size: 18px;
        font-weight: 700;
        margin: 0 0 12px;
    }

    .footer-brand p {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.7);
        line-height: 1.8;
        margin: 0;
        max-width: 300px;
    }

    .footer-col h4 {
        color: var(--white);
        font-size: 14px;
        font-weight: 600;
        margin: 0 0 12px;
    }

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

    .footer-col ul li {
        margin-bottom: 8px;
    }

    .footer-col ul li a {
        color: rgba(255, 255, 255, 0.7);
        font-size: 13px;
        transition: var(--transition);
    }

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

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.15);
        padding-top: 20px;
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 12px;
        color: rgba(255, 255, 255, 0.55);
        justify-content: space-between;
        align-items: center;
    }

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

    .fb-links a {
        color: rgba(255, 255, 255, 0.6);
        font-size: 12px;
    }

    .fb-links a:hover {
        color: var(--accent);
    }

    /* Responsive */
    @media (max-width: 1024px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
        .cat-hero-grid {
            flex-direction: column;
            gap: 24px;
        }
        .cat-hero-text {
            flex: 1 1 100%;
        }
        .cat-hero-img {
            flex: 1 1 100%;
            width: 100%;
        }
        .main-nav>li>a {
            padding: 10px 12px;
            font-size: 13px;
        }
    }

    @media (max-width: 768px) {
        section {
            padding: 40px 0;
        }
        .container-wide {
            padding: 0 16px;
        }
        .container-narrow {
            padding: 0 16px;
        }
        .header-inner {
            height: 60px;
            gap: 12px;
        }
        .logo {
            font-size: 17px;
        }
        .logo .logo-icon {
            width: 30px;
            height: 30px;
            font-size: 15px;
        }
        .nav-toggle {
            display: flex;
        }
        .main-nav {
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: var(--white);
            flex-direction: column;
            align-items: stretch;
            box-shadow: var(--shadow-card-hover);
            border-bottom: 1px solid var(--border);
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
            z-index: 99;
        }
        .main-nav.open {
            max-height: 500px;
            overflow-y: auto;
        }
        .main-nav>li {
            border-bottom: 1px solid var(--divider);
        }
        .main-nav>li:last-child {
            border-bottom: none;
        }
        .main-nav>li>a {
            padding: 14px 24px;
            font-size: 14px;
        }
        .main-nav>li>a:hover::after,
        .main-nav>li>a.active::after {
            display: none;
        }
        .has-dropdown>a::before {
            float: right;
            margin-right: 0;
            margin-left: 8px;
            transform: rotate(45deg) translateY(2px);
        }
        .has-dropdown:hover>a::before,
        .has-dropdown:focus-within>a::before {
            transform: rotate(225deg) translateY(-2px);
        }
        .dropdown-panel {
            position: static;
            min-width: auto;
            border: none;
            box-shadow: none;
            border-radius: 0;
            padding: 0;
            opacity: 1;
            visibility: visible;
            transform: none;
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
            background: var(--bg-secondary);
        }
        .has-dropdown.open .dropdown-panel {
            max-height: 250px;
        }
        .dropdown-panel a {
            padding: 12px 32px;
            border-bottom: 1px solid var(--divider);
        }
        .dropdown-panel a:last-child {
            border-bottom: none;
        }
        .cat-hero {
            padding: 32px 0;
        }
        .cat-hero-text h1 {
            font-size: 26px;
        }
        .period-item {
            flex-direction: column;
            gap: 8px;
        }
        .period-date {
            flex: 0 0 auto;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
            gap: 8px;
        }
        .cta-section {
            padding: 40px 16px;
        }
    }

    @media (max-width: 480px) {
        .hero-stats {
            gap: 10px;
        }
        .hero-stat {
            min-width: 80px;
            padding: 8px 12px;
        }
        .hero-stat .stat-num {
            font-size: 18px;
        }
        .section-title {
            font-size: 22px;
        }
        .btn {
            padding: 9px 16px;
            font-size: 13px;
        }
        .trend-item .trend-num {
            font-size: 24px;
        }
    }

/* roulang page: category7 */
:root {
            --primary: #1B4D3E;
            --primary-dark: #142E26;
            --primary-light: #2E5F50;
            --accent: #D98E32;
            --accent-dark: #C07624;
            --accent-light: #F7EEE0;
            --bg: #F7F5F0;
            --bg-secondary: #EDEFEA;
            --text: #232A27;
            --text-secondary: #5B6560;
            --border: #E0E4DE;
            --divider: #D5DBD4;
            --success: #2E7D5A;
            --warning: #C07624;
            --white: #FFFFFF;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-badge: 4px;
            --shadow-card: 0 2px 8px rgba(35, 42, 39, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(35, 42, 39, 0.12);
            --shadow-btn-accent: 0 2px 10px rgba(217, 142, 50, 0.2);
            --font-cn: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
            --font-num: 'Inter', 'Roboto', system-ui, sans-serif;
            --transition: all .25s ease;
        }

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

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

        body {
            font-family: var(--font-cn);
            font-size: 15px;
            line-height: 1.85;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }

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

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

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

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

        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: 56px 0;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary);
            color: var(--white);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: .08em;
            padding: 4px 14px;
            border-radius: 50px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 28px;
            max-width: 820px;
        }

        /* Header */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(35, 42, 39, 0.04);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }
        .logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--white);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .logo:hover {
            color: var(--primary-dark);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            color: var(--primary);
            background: var(--bg-secondary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .main-nav > li {
            position: relative;
        }
        .main-nav > li > a {
            display: block;
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            border-radius: 4px;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .main-nav > li > a:hover,
        .main-nav > li > a.active {
            color: var(--primary);
        }
        .main-nav > li > a:hover::after,
        .main-nav > li > a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .has-dropdown > a::before {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            border-right: 1.5px solid currentColor;
            border-bottom: 1.5px solid currentColor;
            transform: rotate(45deg) translateY(-3px);
            margin-right: 8px;
            transition: var(--transition);
        }

        .dropdown-panel {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 200px;
            background: var(--white);
            border-radius: 8px;
            box-shadow: 0 6px 20px rgba(35, 42, 39, 0.12);
            padding: 8px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all .22s ease;
            z-index: 20;
            border: 1px solid var(--border);
        }
        .has-dropdown:hover .dropdown-panel,
        .has-dropdown:focus-within .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .dropdown-panel a {
            display: block;
            padding: 9px 20px;
            font-size: 13px;
            color: var(--text);
            transition: var(--transition);
        }
        .dropdown-panel a:hover {
            background: var(--bg-secondary);
            color: var(--primary);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border);
            padding: 10px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li + li::before {
            content: '/';
            color: var(--divider);
            margin-right: 4px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Category Hero */
        .cat-hero {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            padding: 40px 0 36px;
        }
        .cat-hero-grid {
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 32px;
            align-items: start;
        }
        .cat-hero h1 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.35;
            margin-bottom: 14px;
        }
        .cat-hero .cat-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.95;
            margin-bottom: 16px;
        }
        .cat-hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .cat-hero-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .cat-hero-meta i {
            color: var(--accent);
        }
        .cat-hero-side {
            background: var(--bg-secondary);
            border-radius: var(--radius-card);
            padding: 20px;
            border: 1px solid var(--border);
        }
        .cat-hero-side h3 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }
        .cat-hero-side ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .cat-hero-side li {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 0;
            border-bottom: 1px solid var(--divider);
            font-size: 13px;
            color: var(--text-secondary);
        }
        .cat-hero-side li:last-child {
            border-bottom: none;
        }
        .cat-hero-side .stat-num {
            font-family: var(--font-num);
            font-weight: 700;
            color: var(--primary);
            font-size: 18px;
            margin-left: auto;
        }

        /* Discussion Feed List */
        .discussion-list {
            list-style: none;
            margin: 0;
            padding: 0;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            background: var(--white);
            box-shadow: var(--shadow-card);
        }
        .discussion-item {
            display: grid;
            grid-template-columns: 80px 1fr auto;
            gap: 18px;
            padding: 20px 22px;
            align-items: start;
            border-bottom: 1px solid var(--divider);
            transition: var(--transition);
        }
        .discussion-item:last-child {
            border-bottom: none;
        }
        .discussion-item:hover {
            background: var(--bg-secondary);
            cursor: pointer;
        }
        .discussion-date {
            font-family: var(--font-num);
            font-size: 12px;
            color: var(--text-secondary);
            background: var(--bg-secondary);
            border-radius: 4px;
            padding: 6px 8px;
            text-align: center;
            line-height: 1.4;
        }
        .discussion-date .day {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            display: block;
        }
        .discussion-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .discussion-title a {
            color: var(--text);
        }
        .discussion-title a:hover {
            color: var(--primary);
        }
        .discussion-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 8px;
        }
        .discussion-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            padding: 2px 10px;
            border-radius: var(--radius-badge);
            background: var(--bg-secondary);
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .badge-primary {
            background: var(--primary);
            color: var(--white);
        }
        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }
        .discussion-heat {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 4px;
            white-space: nowrap;
        }
        .discussion-heat i {
            color: var(--accent);
        }

        /* Deep content section */
        .deep-content {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            box-shadow: var(--shadow-card);
        }
        .deep-content h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 18px;
        }
        .deep-content h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            margin: 24px 0 10px;
        }
        .deep-content p {
            font-size: 15px;
            line-height: 1.95;
            color: var(--text);
            margin-bottom: 14px;
        }
        .deep-content ul {
            list-style: none;
            padding: 0;
            margin: 10px 0 16px;
        }
        .deep-content ul li {
            position: relative;
            padding-left: 18px;
            margin-bottom: 8px;
            font-size: 14px;
            line-height: 1.75;
            color: var(--text);
        }
        .deep-content ul li::before {
            content: '—';
            position: absolute;
            left: 0;
            color: var(--accent);
        }

        /* Tag cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud a {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            border: 1px solid var(--border);
            background: var(--white);
            color: var(--text);
            transition: var(--transition);
        }
        .tag-cloud a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--bg-secondary);
        }
        .tag-cloud a.hot {
            background: var(--primary);
            color: var(--white);
            border-color: var(--primary);
        }
        .tag-cloud a.warm {
            background: var(--accent-light);
            color: var(--accent-dark);
            border-color: var(--accent);
        }

        /* Featured cards */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .featured-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .featured-card .fc-body {
            padding: 18px 20px 20px;
        }
        .featured-card .fc-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .featured-card .fc-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 10px;
        }
        .featured-card .fc-meta {
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            gap: 14px;
        }

        /* Tools grid */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .tool-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            text-align: center;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .tool-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .tool-card .tool-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 12px;
            border-radius: 12px;
            background: var(--bg-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
        }
        .tool-card h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .tool-card p {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 10px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            gap: 12px;
        }
        .faq-question .faq-q-text {
            flex: 1;
        }
        .faq-question .faq-toggle-icon {
            font-size: 14px;
            color: var(--primary);
            transition: transform .25s ease;
            min-width: 20px;
            text-align: center;
        }
        .faq-item.open .faq-toggle-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
            background: var(--bg-secondary);
        }
        .faq-answer-inner {
            padding: 0 20px 16px 36px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-left: 3px solid var(--primary);
            margin-left: 20px;
        }

        /* CTA */
        .cta-box {
            background: var(--primary-dark);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            text-align: center;
            color: var(--white);
        }
        .cta-box h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--white);
        }
        .cta-box p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 580px;
            margin: 0 auto 22px;
            line-height: 1.8;
        }
        .btn {
            display: inline-block;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            border: 2px solid transparent;
            line-height: 1.5;
            text-align: center;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--white);
            border-color: var(--accent);
            box-shadow: var(--shadow-btn-accent);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: var(--white);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--white);
            border-color: var(--primary);
        }
        .btn-light {
            background: var(--white);
            color: var(--primary-dark);
            border-color: var(--white);
        }
        .btn-light:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: var(--accent-dark);
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
        }
        .footer-brand h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            max-width: 320px;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 12px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col li {
            margin-bottom: 6px;
        }
        .footer-col a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 16px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            justify-content: space-between;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom .fb-links {
            display: flex;
            gap: 16px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 12px;
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .cat-hero-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cat-hero-side {
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .tools-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: stretch;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 16px rgba(35, 42, 39, 0.08);
                padding: 8px 0;
                max-height: 70vh;
                overflow-y: auto;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav > li > a {
                padding: 12px 24px;
                font-size: 15px;
                border-radius: 0;
            }
            .main-nav > li > a:hover::after,
            .main-nav > li > a.active::after {
                display: none;
            }
            .has-dropdown > a::before {
                margin-right: 10px;
            }
            .dropdown-panel {
                position: static;
                min-width: auto;
                box-shadow: none;
                border: none;
                background: var(--bg-secondary);
                border-radius: 0;
                padding: 0;
                opacity: 1;
                visibility: visible;
                transform: none;
                display: none;
            }
            .has-dropdown.open .dropdown-panel {
                display: block;
            }
            .dropdown-panel a {
                padding: 10px 40px;
                font-size: 14px;
            }
            .has-dropdown > a::before {
                transform: rotate(45deg) translateY(-3px);
                transition: transform .2s ease;
            }
            .has-dropdown.open > a::before {
                transform: rotate(225deg) translateY(-1px);
            }
            .discussion-item {
                grid-template-columns: 1fr;
                gap: 10px;
                padding: 16px;
            }
            .discussion-date {
                display: inline-block;
                text-align: left;
                padding: 4px 10px;
            }
            .discussion-date .day {
                display: inline;
                font-size: 14px;
            }
            .discussion-heat {
                justify-content: flex-start;
            }
            .deep-content {
                padding: 24px 20px;
            }
            .cat-hero h1 {
                font-size: 24px;
            }
            .cat-hero-side {
                grid-template-columns: 1fr;
            }
            section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
            .cta-box {
                padding: 28px 20px;
            }
            .featured-card img {
                height: 140px;
            }
        }

        @media (max-width: 520px) {
            .container-wide {
                padding: 0 12px;
            }
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .header-inner {
                height: 60px;
                gap: 12px;
            }
            .logo {
                font-size: 17px;
            }
            .logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
            .main-nav {
                top: 60px;
            }
            section {
                padding: 28px 0;
            }
            .cat-hero {
                padding: 28px 0 24px;
            }
            .cat-hero h1 {
                font-size: 21px;
            }
            .cat-hero-meta {
                gap: 10px;
                font-size: 12px;
            }
            .discussion-title {
                font-size: 14px;
            }
            .discussion-excerpt {
                font-size: 13px;
            }
            .deep-content h2 {
                font-size: 19px;
            }
            .deep-content h3 {
                font-size: 15px;
            }
            .btn {
                padding: 9px 18px;
                font-size: 13px;
                display: block;
                margin: 6px auto 0;
                width: 100%;
                max-width: 260px;
            }
        }