/* roulang page: index */
:root {
            --primary: #186A3B;
            --primary-dark: #0F4E2A;
            --primary-light: #E8F3EC;
            --accent: #C9A227;
            --accent-light: #FBF6E7;
            --text: #1F2520;
            --text-light: #5D6B61;
            --bg: #F7F5EF;
            --card: #FFFFFF;
            --border: #E3DFD4;
            --danger: #D64541;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(31, 37, 32, 0.04);
            --shadow-md: 0 8px 24px rgba(31, 37, 32, 0.06);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08);
            --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s, text-decoration 0.2s;
        }

        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header */
        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 40;
            box-shadow: 0 2px 8px rgba(31, 37, 32, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
            flex-wrap: nowrap;
        }

        .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo a {
            color: inherit;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }

        .main-nav::-webkit-scrollbar {
            height: 3px;
        }

        .main-nav::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }

        .main-nav>a {
            display: inline-flex;
            align-items: center;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            text-decoration: none;
            transition: color 0.15s, background 0.15s;
            position: relative;
        }

        .main-nav>a:hover,
        .main-nav>a.active {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }

        .mega-trigger {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            transition: color 0.15s, background 0.15s;
            user-select: none;
            white-space: nowrap;
        }

        .mega-trigger:hover,
        .mega-trigger.active {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }

        .mega-trigger .arrow {
            transition: transform 0.2s;
            font-size: 10px;
        }

        .mega-trigger.active .arrow {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 680px;
            max-width: 90vw;
            background: var(--card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            padding: 20px;
            display: none;
            z-index: 50;
        }

        .mega-panel.open {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 16px;
        }

        .mega-col {
            min-width: 0;
        }

        .mega-col h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .mega-col a {
            display: block;
            padding: 6px 0;
            font-size: 14px;
            color: var(--text);
            text-decoration: none;
            border-bottom: 1px dashed var(--border);
            transition: color 0.15s;
        }

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

        .mega-card {
            background: var(--bg);
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }

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

        .mega-card-body {
            padding: 10px 12px;
        }

        .mega-card-body h5 {
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--text);
        }

        .mega-card-body p {
            font-size: 12px;
            color: var(--text-light);
            line-height: 1.5;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            color: var(--text);
            font-size: 22px;
            padding: 4px 8px;
            border-radius: 6px;
        }

        .mobile-menu-btn:hover {
            background: var(--bg);
        }

        /* Hero */
        .hero {
            background: linear-gradient(135deg, #F0F7F2 0%, var(--bg) 45%, var(--accent-light) 100%);
            border-bottom: 1px solid var(--border);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }

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

        .hero-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 20px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-light);
            color: #8A6D1F;
            border: 1px solid #E8D89A;
            border-radius: 20px;
            padding: 4px 12px;
            font-size: 13px;
            font-weight: 500;
            width: fit-content;
        }

        .hero h1 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--text);
            margin: 0;
        }

        .hero-sub {
            font-size: 17px;
            color: var(--text-light);
            line-height: 1.9;
            max-width: 560px;
            margin: 0;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 8px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 11px 20px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            text-decoration: none;
            border: none;
            line-height: 1.4;
            white-space: nowrap;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(24, 106, 59, 0.25);
            text-decoration: none;
            color: #fff;
        }

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

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
        }

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

        .btn-accent:hover {
            background: #A88A1D;
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(201, 162, 39, 0.3);
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 300px;
        }

        .hero-image-wrap {
            width: 100%;
            max-width: 480px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            position: relative;
            background: rgba(255, 255, 255, 0.5);
        }

        .hero-image-wrap img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        .hero-before-after {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 4px;
        }

        .ba-card {
            background: var(--card);
            border-radius: var(--radius-sm);
            padding: 14px 16px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .ba-label {
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.03em;
            text-transform: uppercase;
            margin-bottom: 6px;
            display: inline-block;
            padding: 2px 8px;
            border-radius: 4px;
        }

        .ba-label.before {
            background: #FDEDED;
            color: var(--danger);
        }

        .ba-label.after {
            background: var(--primary-light);
            color: var(--primary);
        }

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

        /* Section common */
        .section {
            padding: 48px 0;
            border-bottom: 1px solid var(--border);
        }

        .section:nth-child(even) {
            background: var(--card);
        }

        .section-alt {
            background: rgba(24, 106, 59, 0.02);
        }

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

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 10px;
            border-radius: 4px;
            margin-bottom: 8px;
        }

        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            letter-spacing: -0.015em;
            line-height: 1.3;
            color: var(--text);
            margin: 0 0 8px;
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            max-width: 760px;
            margin: 0;
        }

        /* KPI board */
        .kpi-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 16px;
        }

        .kpi-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            box-shadow: var(--shadow-sm);
            transition: all 0.2s;
        }

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

        .kpi-card.large {
            grid-row: span 2;
            display: flex;
            flex-direction: column;
            justify-content: center;
            background: linear-gradient(135deg, #E8F3EC 0%, #FFFFFF 100%);
        }

        .kpi-value {
            font-size: 36px;
            font-weight: 700;
            letter-spacing: -0.03em;
            color: var(--text);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .kpi-card.large .kpi-value {
            font-size: 44px;
        }

        .kpi-label {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }

        .kpi-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            margin-left: 8px;
        }

        .kpi-trend.up {
            color: var(--primary);
        }

        .kpi-trend.down {
            color: var(--danger);
        }

        /* Service matrix */
        .service-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 16px;
        }

        .service-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            transition: all 0.2s;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

        .service-card.large {
            grid-row: span 2;
            padding: 28px;
            background: linear-gradient(135deg, #FFFFFF 0%, #F7F5EF 100%);
        }

        .service-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            margin-bottom: 6px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text);
            margin: 0;
        }

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

        /* Odds comparison */
        .odds-compare {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 24px;
            align-items: start;
        }

        .odds-info {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .odds-info h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text);
        }

        .odds-info p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .odds-bars {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .odds-bar-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            box-shadow: var(--shadow-sm);
            transition: all 0.2s;
        }

        .odds-bar-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .odds-bar-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
        }

        .odds-bar-label .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            display: inline-block;
        }

        .dot-initial {
            background: #A8B5AB;
        }

        .dot-live {
            background: var(--primary);
        }

        .dot-final {
            background: var(--accent);
        }

        .odds-bar-track {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .odds-bar-fill {
            height: 8px;
            border-radius: 4px;
            background: #E8E5DC;
            flex: 1;
            position: relative;
            overflow: hidden;
        }

        .odds-bar-fill span {
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            border-radius: 4px;
            transition: width 0.4s ease;
        }

        .odds-bar-value {
            font-size: 14px;
            font-weight: 700;
            color: var(--text);
            min-width: 48px;
            text-align: right;
        }

        /* Hot matches */
        .matches-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }

        .matches-scroll::-webkit-scrollbar {
            height: 5px;
        }

        .matches-scroll::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 5px;
        }

        .match-card {
            min-width: 280px;
            scroll-snap-align: start;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.2s;
            flex-shrink: 0;
        }

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

        .match-card img {
            width: 100%;
            height: 150px;
            object-fit: cover;
        }

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

        .match-date {
            font-size: 12px;
            color: var(--text-light);
            margin-bottom: 2px;
        }

        .match-teams {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
        }

        .match-tag {
            display: inline-block;
            background: var(--accent-light);
            color: #8A6D1F;
            font-size: 12px;
            font-weight: 500;
            padding: 2px 8px;
            border-radius: 4px;
            margin-top: 8px;
        }

        /* Deep article */
        .article-deep {
            max-width: 800px;
            margin: 0;
        }

        .article-deep h3 {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text);
            margin: 24px 0 12px;
        }

        .article-deep p {
            font-size: 15px;
            line-height: 2.0;
            color: var(--text);
            margin-bottom: 18px;
            word-break: break-word;
        }

        .strategy-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 28px;
            align-items: start;
        }

        .strategy-main {
            font-size: 15px;
            line-height: 2.0;
            color: var(--text);
        }

        .strategy-main p {
            margin-bottom: 18px;
        }

        .strategy-side {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 80px;
        }

        .strategy-side h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text);
        }

        .strategy-point {
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 14px;
            color: var(--text);
            line-height: 1.7;
            display: flex;
            gap: 8px;
            align-items: flex-start;
        }

        .strategy-point:last-child {
            border-bottom: none;
        }

        .strategy-point .num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 22px;
            height: 22px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }

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

        .expert-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: left;
            box-shadow: var(--shadow-sm);
            transition: all 0.2s;
        }

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

        .expert-avatar {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--bg);
            overflow: hidden;
            margin-bottom: 12px;
            border: 2px solid var(--border);
        }

        .expert-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .expert-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 4px;
        }

        .expert-field {
            font-size: 13px;
            color: var(--primary);
            font-weight: 500;
            margin-bottom: 6px;
        }

        .expert-tag {
            display: inline-block;
            background: var(--accent-light);
            color: #8A6D1F;
            font-size: 11px;
            padding: 2px 6px;
            border-radius: 3px;
        }

        /* Tools */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
        }

        .tool-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 16px 20px;
            transition: all 0.2s;
            cursor: pointer;
            text-decoration: none;
            color: var(--text);
        }

        .tool-item:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            text-decoration: none;
            color: var(--text);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .tool-item .tool-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
        }

        .tool-item .tool-desc {
            font-size: 13px;
            color: var(--text-light);
        }

        .tool-item .arrow-icon {
            font-size: 18px;
            color: var(--primary);
            font-weight: 700;
        }

        /* Timeline */
        .timeline {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            position: relative;
            padding-left: 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            top: 24px;
            height: 2px;
            background: var(--border);
            z-index: 0;
        }

        .timeline-item {
            flex: 1;
            min-width: 200px;
            position: relative;
            z-index: 1;
            padding: 0 12px;
            text-align: left;
        }

        .timeline-dot {
            width: 14px;
            height: 14px;
            background: var(--primary);
            border-radius: 50%;
            margin-bottom: 12px;
            border: 3px solid var(--bg);
            box-shadow: 0 0 0 2px var(--primary);
        }

        .timeline-year {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .timeline-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .timeline-desc {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }

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

        .news-item {
            display: flex;
            gap: 16px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px;
            box-shadow: var(--shadow-sm);
            transition: all 0.2s;
            align-items: flex-start;
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .news-item img {
            width: 140px;
            height: 100px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

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

        .news-date {
            font-size: 12px;
            color: var(--text-light);
            margin-bottom: 2px;
        }

        .news-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .news-summary {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .news-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            text-decoration: none;
        }

        .news-more:hover {
            color: var(--accent);
            text-decoration: underline;
        }

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

        .guarantee-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: all 0.2s;
        }

        .guarantee-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .guarantee-icon {
            font-size: 24px;
            margin-bottom: 10px;
            display: block;
        }

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

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

        /* Quick answer */
        .qa-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 24px;
            align-items: start;
        }

        .qa-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .qa-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            box-shadow: var(--shadow-sm);
        }

        .qa-item h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

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

        .qa-tip {
            background: var(--accent-light);
            border: 1px solid #E8D89A;
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: left;
        }

        .qa-tip h3 {
            font-size: 16px;
            font-weight: 600;
            color: #8A6D1F;
            margin-bottom: 8px;
        }

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

        /* Brand intro */
        .brand-intro {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 32px;
            box-shadow: var(--shadow-sm);
            max-width: 860px;
        }

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

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 860px;
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            user-select: none;
            transition: background 0.15s;
            gap: 12px;
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            font-family: inherit;
        }

        .faq-question:hover {
            background: var(--bg);
        }

        .faq-question .plus {
            font-size: 20px;
            font-weight: 300;
            color: var(--text-light);
            flex-shrink: 0;
            transition: transform 0.2s;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 16px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
            margin: 0;
        }

        /* Form */
        .form-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }

        .form-info h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .form-info p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.9;
        }

        .form-box {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-md);
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            height: 42px;
            padding: 0 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-family: inherit;
            color: var(--text);
            background: var(--card);
            transition: border-color 0.15s;
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--primary);
            outline: none;
        }

        .form-group input::placeholder {
            color: #A8A8A0;
        }

        .form-error {
            font-size: 12px;
            color: var(--danger);
            margin-top: 4px;
            display: none;
        }

        .form-success {
            font-size: 14px;
            color: var(--primary);
            margin-top: 10px;
            display: none;
        }

        /* Footer */
        .site-footer {
            background: #1F2520;
            color: #E8E8E0;
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: #B8BEB8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-col a {
            display: block;
            font-size: 13px;
            color: #B8BEB8;
            padding: 4px 0;
            text-decoration: none;
            transition: color 0.15s;
        }

        .footer-col a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .footer-subscribe p {
            font-size: 13px;
            color: #B8BEB8;
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .footer-subscribe input {
            width: 100%;
            height: 38px;
            padding: 0 12px;
            border: 1px solid #3A443D;
            background: #2A312C;
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-family: inherit;
        }

        .footer-subscribe input:focus {
            outline: none;
            border-color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid #3A443D;
            padding-top: 20px;
            font-size: 12px;
            color: #9AA19A;
            line-height: 1.8;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
        }

        .footer-bottom a {
            color: #B8BEB8;
            text-decoration: none;
            transition: color 0.15s;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

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

            .kpi-card.large {
                grid-row: span 1;
                grid-column: span 2;
            }

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

            .service-card.large {
                grid-column: span 2;
                grid-row: span 1;
            }

            .odds-compare {
                grid-template-columns: 1fr;
            }

            .strategy-layout {
                grid-template-columns: 1fr;
            }

            .strategy-side {
                position: static;
            }

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

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

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

            .qa-layout {
                grid-template-columns: 1fr;
            }

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

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

            .mega-panel {
                width: 560px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
                flex-wrap: nowrap;
            }

            .main-nav {
                display: none;
            }

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

            .main-nav.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 56px;
                left: 0;
                right: 0;
                background: var(--card);
                border-bottom: 1px solid var(--border);
                padding: 12px 16px;
                gap: 2px;
                box-shadow: var(--shadow-md);
                max-height: 70vh;
                overflow-y: auto;
                z-index: 45;
            }

            .main-nav.mobile-open>a,
            .main-nav.mobile-open .mega-trigger {
                width: 100%;
                justify-content: space-between;
                padding: 12px 8px;
            }

            .mega-panel {
                position: static;
                width: 100%;
                max-width: 100%;
                box-shadow: none;
                border: none;
                padding: 0;
                display: none;
            }

            .mega-panel.open {
                display: flex;
                flex-direction: column;
                gap: 8px;
                padding: 8px 0;
            }

            .hero {
                padding: 32px 0 32px;
            }

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

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

            .hero-image-wrap img {
                height: 220px;
            }

            .section {
                padding: 32px 0;
            }

            .section-header h2 {
                font-size: 22px;
            }

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

            .kpi-card.large {
                grid-column: span 2;
            }

            .kpi-value {
                font-size: 28px;
            }

            .kpi-card.large .kpi-value {
                font-size: 34px;
            }

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

            .service-card.large {
                grid-column: span 1;
            }

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

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

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

            .timeline {
                flex-direction: column;
                gap: 20px;
            }

            .timeline::before {
                display: none;
            }

            .timeline-item {
                padding-left: 32px;
                position: relative;
            }

            .timeline-item::before {
                content: '';
                position: absolute;
                left: 0;
                top: 8px;
                width: 12px;
                height: 12px;
                background: var(--primary);
                border-radius: 50%;
                border: 3px solid var(--bg);
                box-shadow: 0 0 0 2px var(--primary);
            }

            .news-item {
                flex-direction: column;
                gap: 10px;
            }

            .news-item img {
                width: 100%;
                height: 160px;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }

            .form-box {
                padding: 20px;
            }

            .brand-intro {
                padding: 20px;
            }

            .qa-layout {
                gap: 16px;
            }
        }

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

            .hero h1 {
                font-size: 21px;
            }

            .hero-tag {
                font-size: 11px;
                padding: 3px 9px;
            }

            .btn {
                padding: 9px 16px;
                font-size: 14px;
            }

            .kpi-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .kpi-card.large {
                grid-column: span 1;
            }

            .kpi-value {
                font-size: 26px;
            }

            .kpi-card.large .kpi-value {
                font-size: 30px;
            }

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

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

            .service-card.large img {
                height: 120px;
            }

            .hero-image-wrap img {
                height: 180px;
            }

            .section-header h2 {
                font-size: 20px;
            }

            .article-deep p {
                font-size: 14px;
                line-height: 1.9;
            }

            .match-card {
                min-width: 240px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #186A3B;
            --primary-dark: #0F4E2A;
            --primary-light: #E8F3EC;
            --accent: #C9A227;
            --accent-light: #FBF6E7;
            --text: #1F2520;
            --text-light: #5D6B61;
            --bg: #F7F5EF;
            --card: #FFFFFF;
            --border: #E3DFD4;
            --danger: #D64541;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(31, 37, 32, 0.04);
            --shadow-md: 0 8px 24px rgba(31, 37, 32, 0.06);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08);
            --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s, text-decoration 0.2s;
        }

        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 40;
            box-shadow: 0 2px 8px rgba(31, 37, 32, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
            flex-wrap: nowrap;
        }

        .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo a {
            color: inherit;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }

        .main-nav::-webkit-scrollbar {
            height: 3px;
        }

        .main-nav::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }

        .main-nav>a {
            display: inline-flex;
            align-items: center;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            text-decoration: none;
            transition: color 0.15s, background 0.15s;
            position: relative;
        }

        .main-nav>a:hover,
        .main-nav>a.active {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }

        .mega-trigger {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            transition: color 0.15s, background 0.15s;
            user-select: none;
            white-space: nowrap;
        }

        .mega-trigger:hover,
        .mega-trigger.active {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }

        .mega-trigger .arrow {
            transition: transform 0.2s;
            font-size: 10px;
        }

        .mega-trigger.active .arrow {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 680px;
            max-width: 90vw;
            background: var(--card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            padding: 20px;
            display: none;
            z-index: 50;
        }

        .mega-panel.open {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 16px;
        }

        .mega-col {
            min-width: 0;
        }

        .mega-col h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .mega-col a {
            display: block;
            padding: 6px 0;
            font-size: 14px;
            color: var(--text);
            text-decoration: none;
            border-bottom: 1px dashed var(--border);
            transition: color 0.15s;
        }

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

        .mega-card {
            background: var(--bg);
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .mega-card img {
            width: 100%;
            height: 96px;
            object-fit: cover;
        }

        .mega-card-body {
            padding: 10px;
        }

        .mega-card-body h5 {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--text);
        }

        .mega-card-body p {
            font-size: 12px;
            color: var(--text-light);
            line-height: 1.5;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 16px 0;
            font-size: 14px;
            color: var(--text-light);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-light);
            text-decoration: none;
            font-weight: 400;
        }

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

        .breadcrumb span.sep {
            color: var(--border);
        }

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

        .page-main {
            padding: 24px 0 60px;
        }

        .section-block {
            margin-bottom: 36px;
            scroll-margin-top: 80px;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
            line-height: 1.3;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .section-title .title-accent {
            display: inline-block;
            width: 4px;
            height: 24px;
            background: var(--accent);
            border-radius: 2px;
            flex-shrink: 0;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-light);
            margin-bottom: 20px;
            line-height: 1.7;
            max-width: 800px;
        }

        .card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
            overflow: hidden;
        }

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

        .card-body {
            padding: 18px;
        }

        .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 6px;
        }

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

        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 8px;
            flex-wrap: wrap;
        }

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

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            background: var(--primary-light);
            color: var(--primary);
            line-height: 1.4;
        }

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

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            border: none;
            text-decoration: none;
            line-height: 1.4;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

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

        .btn-secondary:hover {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
        }

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

        .btn-accent:hover {
            background: #b8901e;
            color: #fff;
            text-decoration: none;
        }

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

        .analysis-item {
            display: grid;
            grid-template-columns: 1fr 220px;
            gap: 16px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
            align-items: center;
        }

        .analysis-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .analysis-item .item-cover {
            width: 100%;
            height: 128px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--border);
            border: 1px solid var(--border);
        }

        .analysis-item .item-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .analysis-item .item-body {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .analysis-item .item-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .analysis-item .item-desc {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 8px;
        }

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

        .knowledge-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s;
        }

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

        .knowledge-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

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

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

        .featured-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
        }

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

        .featured-card .featured-cover {
            width: 100%;
            height: 140px;
            overflow: hidden;
            background: var(--border);
        }

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

        .featured-card .featured-body {
            padding: 14px;
        }

        .featured-card .featured-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 4px;
        }

        .featured-card .featured-desc {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }

        .related-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .related-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            text-decoration: none;
            transition: all 0.2s;
        }

        .related-item:hover {
            border-color: var(--accent);
            color: var(--primary);
            text-decoration: none;
            background: var(--primary-light);
        }

        .related-item .rel-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

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

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

        .faq-question {
            padding: 14px 18px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            user-select: none;
            transition: background 0.2s;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
        }

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

        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform 0.2s;
            font-weight: 400;
        }

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

        .faq-answer {
            padding: 0 18px 16px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }

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

        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 32px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: center;
            color: #fff;
            box-shadow: var(--shadow-lg);
        }

        .cta-section h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }

        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .cta-form {
            background: var(--card);
            border-radius: var(--radius-md);
            padding: 22px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            box-shadow: var(--shadow-sm);
        }

        .cta-form label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            display: block;
            margin-bottom: 2px;
        }

        .cta-form input,
        .cta-form select {
            width: 100%;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0 14px;
            font-size: 14px;
            font-family: var(--font-sans);
            transition: border-color 0.2s, box-shadow 0.2s;
            background: var(--card);
            color: var(--text);
        }

        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(24, 106, 59, 0.1);
            outline: none;
        }

        .cta-form .form-hint {
            font-size: 12px;
            color: var(--text-light);
            line-height: 1.5;
        }

        .site-footer {
            background: #1F2520;
            color: rgba(255, 255, 255, 0.78);
            padding: 40px 0 20px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.3fr 1fr 1fr 1.2fr;
            gap: 28px;
            margin-bottom: 28px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
        }

        .footer-col a {
            display: block;
            padding: 4px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color 0.2s;
        }

        .footer-col a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .footer-subscribe h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
        }

        .footer-subscribe p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .footer-subscribe input {
            width: 100%;
            height: 40px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-sm);
            padding: 0 14px;
            font-size: 14px;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-family: var(--font-sans);
            transition: border-color 0.2s;
        }

        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-subscribe input:focus {
            border-color: var(--accent);
            outline: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color 0.2s;
        }

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

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

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

            .analysis-item {
                grid-template-columns: 1fr 180px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: auto;
                padding-top: 10px;
                padding-bottom: 10px;
                flex-wrap: wrap;
                justify-content: center;
            }

            .logo {
                font-size: 18px;
            }

            .main-nav {
                width: 100%;
                justify-content: flex-start;
                padding-bottom: 4px;
            }

            .main-nav>a {
                padding: 6px 10px;
                font-size: 13px;
            }

            .mega-trigger {
                font-size: 13px;
                padding: 6px 10px;
            }

            .mega-panel {
                width: 100%;
                left: 0;
                right: 0;
                max-width: 100%;
                padding: 16px;
            }

            .mega-panel.open {
                grid-template-columns: 1fr;
                gap: 12px;
            }

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

            .analysis-item .item-cover {
                height: 160px;
                order: -1;
            }

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

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

            .cta-section {
                grid-template-columns: 1fr;
                padding: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

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

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

            .breadcrumb {
                font-size: 13px;
                padding: 12px 0;
            }
        }

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

            .main-nav>a {
                padding: 5px 8px;
                font-size: 12px;
            }

            .mega-trigger {
                font-size: 12px;
                padding: 5px 8px;
            }

            .section-title {
                font-size: 19px;
            }

            .card-body {
                padding: 14px;
            }

            .analysis-item {
                padding: 12px;
            }

            .cta-section {
                padding: 18px;
                border-radius: var(--radius-md);
            }

            .cta-form {
                padding: 16px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #186A3B;
            --primary-dark: #0F4E2A;
            --primary-light: #E8F3EC;
            --accent: #C9A227;
            --accent-light: #FBF6E7;
            --text: #1F2520;
            --text-light: #5D6B61;
            --bg: #F7F5EF;
            --card: #FFFFFF;
            --border: #E3DFD4;
            --danger: #D64541;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(31, 37, 32, 0.04);
            --shadow-md: 0 8px 24px rgba(31, 37, 32, 0.06);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08);
            --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s, text-decoration 0.2s;
        }

        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header */
        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 40;
            box-shadow: 0 2px 8px rgba(31, 37, 32, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
            flex-wrap: nowrap;
        }

        .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo a {
            color: inherit;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }

        .main-nav::-webkit-scrollbar {
            height: 3px;
        }

        .main-nav::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }

        .main-nav>a {
            display: inline-flex;
            align-items: center;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            text-decoration: none;
            transition: color 0.15s, background 0.15s;
            position: relative;
        }

        .main-nav>a:hover,
        .main-nav>a.active {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }

        .mega-trigger {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            transition: color 0.15s, background 0.15s;
            user-select: none;
            white-space: nowrap;
        }

        .mega-trigger:hover,
        .mega-trigger.active {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }

        .mega-trigger .arrow {
            transition: transform 0.2s;
            font-size: 10px;
        }

        .mega-trigger.active .arrow {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 680px;
            max-width: 90vw;
            background: var(--card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            padding: 20px;
            display: none;
            z-index: 50;
        }

        .mega-panel.open {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 16px;
        }

        .mega-col {
            min-width: 0;
        }

        .mega-col h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .mega-col a {
            display: block;
            padding: 6px 0;
            font-size: 14px;
            color: var(--text);
            text-decoration: none;
            border-bottom: 1px dashed var(--border);
            transition: color 0.15s;
        }

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

        .mega-card {
            background: var(--bg);
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }

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

        .mega-card-body {
            padding: 12px;
        }

        .mega-card-body h5 {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .mega-card-body p {
            font-size: 12px;
            color: var(--text-light);
            line-height: 1.5;
        }

        /* Breadcrumb */
        .breadcrumb {
            padding: 16px 0;
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-light);
            text-decoration: none;
            transition: color 0.15s;
        }

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

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

        .breadcrumb .current {
            color: var(--text);
            font-weight: 700;
            text-decoration: none;
        }

        /* Category Hero Section */
        .category-hero {
            padding: 40px 0 32px;
            background: linear-gradient(180deg, #fff 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border);
        }

        .category-hero-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .category-hero-left {
            flex: 1 1 60%;
            min-width: 280px;
        }

        .category-hero-left h1 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 12px;
        }

        .category-hero-left .subtitle {
            font-size: 17px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }

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

        .category-hero-tags .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            font-size: 13px;
            font-weight: 500;
            border-radius: 20px;
            background: var(--primary-light);
            color: var(--primary);
            border: 1px solid rgba(24, 106, 59, 0.15);
        }

        .category-hero-right {
            flex: 0 0 260px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
        }

        .category-hero-right .stat-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }

        .category-hero-right .stat-item:last-child {
            border-bottom: none;
        }

        .category-hero-right .stat-label {
            font-size: 13px;
            color: var(--text-light);
        }

        .category-hero-right .stat-value {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
        }

        /* Section common */
        .section {
            padding: 48px 0;
            border-bottom: 1px solid var(--border);
        }

        .section-alt {
            background: #fff;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: -0.01em;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-title .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 4px;
            background: var(--accent-light);
            color: var(--accent);
            letter-spacing: 0.02em;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.9;
            margin-bottom: 28px;
            max-width: 860px;
        }

        /* Category description text */
        .category-desc {
            font-size: 16px;
            line-height: 2.0;
            color: var(--text);
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 32px;
            box-shadow: var(--shadow-sm);
            max-width: 100%;
        }

        .category-desc p {
            margin-bottom: 16px;
        }

        .category-desc p:last-child {
            margin-bottom: 0;
        }

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

        .brief-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            transition: box-shadow 0.2s, border-color 0.2s, transform 0.2s;
            cursor: default;
        }

        .brief-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
            transform: translateY(-1px);
        }

        .brief-item .brief-img {
            flex-shrink: 0;
            width: 100px;
            height: 70px;
            border-radius: 6px;
            overflow: hidden;
            background: var(--bg);
            border: 1px solid var(--border);
        }

        .brief-item .brief-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .brief-item .brief-content {
            flex: 1;
            min-width: 0;
        }

        .brief-item .brief-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-light);
            margin-bottom: 4px;
            flex-wrap: wrap;
        }

        .brief-item .brief-meta .date {
            font-weight: 500;
        }

        .brief-item .brief-meta .tag {
            display: inline-block;
            padding: 2px 8px;
            font-size: 11px;
            font-weight: 500;
            border-radius: 3px;
            background: var(--primary-light);
            color: var(--primary);
        }

        .brief-item .brief-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 4px;
        }

        .brief-item .brief-summary {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* Data frequency comparison table */
        .data-compare-table {
            width: 100%;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border-collapse: collapse;
        }

        .data-compare-table thead {
            background: var(--primary);
            color: #fff;
        }

        .data-compare-table th {
            padding: 14px 16px;
            font-size: 14px;
            font-weight: 600;
            text-align: left;
            letter-spacing: 0.02em;
        }

        .data-compare-table td {
            padding: 14px 16px;
            font-size: 14px;
            color: var(--text);
            border-bottom: 1px solid var(--border);
            text-align: left;
        }

        .data-compare-table tbody tr:last-child td {
            border-bottom: none;
        }

        .data-compare-table tbody tr:hover {
            background: var(--primary-light);
        }

        .data-compare-table .freq-high {
            color: var(--primary);
            font-weight: 600;
        }

        .data-compare-table .freq-mid {
            color: var(--accent);
            font-weight: 600;
        }

        /* Ranking list */
        .ranking-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            transition: box-shadow 0.2s, border-color 0.2s;
        }

        .ranking-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--accent);
        }

        .ranking-num {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 13px;
            font-weight: 700;
            background: var(--primary-light);
            color: var(--primary);
        }

        .ranking-num.top3 {
            background: var(--accent);
            color: #fff;
        }

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

        .ranking-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
        }

        .ranking-detail {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 2px;
        }

        .ranking-value {
            flex-shrink: 0;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
        }

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

        .tool-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: box-shadow 0.2s, border-color 0.2s, transform 0.2s;
        }

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

        .tool-icon {
            font-size: 24px;
            margin-bottom: 10px;
            color: var(--primary);
        }

        .tool-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .tool-desc {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* Related articles */
        .related-articles {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }

        .related-article {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px;
            transition: box-shadow 0.2s, border-color 0.2s;
        }

        .related-article:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--accent);
        }

        .related-article .ra-img {
            flex-shrink: 0;
            width: 80px;
            height: 60px;
            border-radius: 6px;
            overflow: hidden;
            background: var(--bg);
            border: 1px solid var(--border);
        }

        .related-article .ra-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .related-article .ra-content {
            flex: 1;
            min-width: 0;
        }

        .related-article .ra-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 4px;
        }

        .related-article .ra-date {
            font-size: 12px;
            color: var(--text-light);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 100%;
        }

        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: border-color 0.2s;
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            font-family: var(--font-sans);
            transition: color 0.15s;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 16px;
            font-weight: 700;
            transition: transform 0.2s, background 0.2s;
        }

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

        .faq-answer {
            display: none;
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

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

        /* CTA section */
        .cta-section {
            padding: 48px 0;
            background: var(--primary);
            color: #fff;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .cta-left {
            flex: 1 1 50%;
            min-width: 280px;
        }

        .cta-left h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .cta-left p {
            font-size: 15px;
            line-height: 1.8;
            opacity: 0.9;
        }

        .cta-right {
            flex: 0 0 320px;
            background: var(--card);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-lg);
        }

        .cta-form-group {
            margin-bottom: 14px;
        }

        .cta-form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .cta-form-group input,
        .cta-form-group select {
            width: 100%;
            height: 42px;
            padding: 0 12px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text);
            background: #fff;
            font-family: var(--font-sans);
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .cta-form-group input:focus,
        .cta-form-group select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(24, 106, 59, 0.1);
        }

        .cta-submit {
            width: 100%;
            height: 42px;
            border: none;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            font-family: var(--font-sans);
            transition: background 0.2s, transform 0.2s;
        }

        .cta-submit:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }

        .cta-submit:active {
            transform: translateY(0);
        }

        /* Footer */
        .site-footer {
            background: var(--text);
            color: #d1d5d0;
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: #b0b8b0;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-col a {
            display: block;
            font-size: 13px;
            color: #b0b8b0;
            text-decoration: none;
            padding: 4px 0;
            transition: color 0.15s;
        }

        .footer-col a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        .footer-subscribe h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-subscribe p {
            font-size: 13px;
            color: #b0b8b0;
            margin-bottom: 12px;
        }

        .footer-subscribe input {
            width: 100%;
            height: 40px;
            padding: 0 12px;
            border: 1px solid #3a3f3b;
            border-radius: var(--radius-sm);
            background: #2a2f2b;
            color: #fff;
            font-size: 13px;
            font-family: var(--font-sans);
            transition: border-color 0.2s;
        }

        .footer-subscribe input::placeholder {
            color: #8a908a;
        }

        .footer-subscribe input:focus {
            outline: none;
            border-color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid #3a3f3b;
            font-size: 12px;
            color: #8a908a;
            flex-wrap: wrap;
        }

        .footer-bottom a {
            color: #b0b8b0;
            text-decoration: none;
            transition: color 0.15s;
        }

        .footer-bottom a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .category-hero-inner {
                flex-direction: column;
            }

            .category-hero-right {
                flex: 0 0 auto;
                width: 100%;
            }

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

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

        @media (max-width: 768px) {
            .header-inner {
                height: auto;
                padding: 10px 0;
                flex-wrap: wrap;
            }

            .main-nav {
                order: 3;
                width: 100%;
                gap: 2px;
                padding-bottom: 4px;
            }

            .mega-panel {
                position: static;
                width: 100%;
                max-width: 100%;
                margin-top: 8px;
                box-shadow: none;
                border-radius: var(--radius-sm);
            }

            .mega-panel.open {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .category-hero {
                padding: 24px 0 20px;
            }

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

            .category-hero-left .subtitle {
                font-size: 15px;
            }

            .category-desc {
                padding: 20px 16px;
                font-size: 14px;
            }

            .brief-item {
                flex-direction: column;
                padding: 14px;
            }

            .brief-item .brief-img {
                width: 100%;
                height: 120px;
            }

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

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

            .related-articles {
                grid-template-columns: 1fr;
            }

            .cta-inner {
                flex-direction: column;
            }

            .cta-right {
                flex: 0 0 auto;
                width: 100%;
            }

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

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

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

            .logo {
                font-size: 18px;
            }

            .category-hero-left h1 {
                font-size: 22px;
            }

            .section {
                padding: 32px 0;
            }

            .section-title {
                font-size: 20px;
            }

            .data-compare-table th,
            .data-compare-table td {
                padding: 10px 10px;
                font-size: 12px;
            }

            .brief-item .brief-title {
                font-size: 14px;
            }

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

/* roulang page: category3 */
:root {
            --primary: #186A3B;
            --primary-dark: #0F4E2A;
            --primary-light: #E8F3EC;
            --accent: #C9A227;
            --accent-light: #FBF6E7;
            --text: #1F2520;
            --text-light: #5D6B61;
            --bg: #F7F5EF;
            --card: #FFFFFF;
            --border: #E3DFD4;
            --danger: #D64541;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(31, 37, 32, 0.04);
            --shadow-md: 0 8px 24px rgba(31, 37, 32, 0.06);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08);
            --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s, text-decoration 0.2s;
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 40;
            box-shadow: 0 2px 8px rgba(31, 37, 32, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
            flex-wrap: nowrap;
        }
        .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo a {
            color: inherit;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }
        .main-nav::-webkit-scrollbar {
            height: 3px;
        }
        .main-nav::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }
        .main-nav>a {
            display: inline-flex;
            align-items: center;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            text-decoration: none;
            transition: color 0.15s, background 0.15s;
            position: relative;
        }
        .main-nav>a:hover,
        .main-nav>a.active {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }
        .mega-trigger {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            transition: color 0.15s, background 0.15s;
            user-select: none;
            white-space: nowrap;
        }
        .mega-trigger:hover,
        .mega-trigger.active {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }
        .mega-trigger .arrow {
            transition: transform 0.2s;
            font-size: 10px;
        }
        .mega-trigger.active .arrow {
            transform: rotate(180deg);
        }
        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 680px;
            max-width: 90vw;
            background: var(--card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            padding: 20px;
            display: none;
            z-index: 50;
        }
        .mega-panel.open {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 16px;
        }
        .mega-col {
            min-width: 0;
        }
        .mega-col h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .mega-col a {
            display: block;
            padding: 6px 0;
            font-size: 14px;
            color: var(--text);
            text-decoration: none;
            border-bottom: 1px dashed var(--border);
            transition: color 0.15s;
        }
        .mega-col a:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .mega-card {
            background: var(--bg);
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .mega-card img {
            width: 100%;
            height: 100px;
            object-fit: cover;
        }
        .mega-card-body {
            padding: 10px;
        }
        .mega-card-body h5 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 4px;
        }
        .mega-card-body p {
            font-size: 12px;
            color: var(--text-light);
            margin: 0;
            line-height: 1.5;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-light);
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .breadcrumb .separator {
            color: var(--text-light);
            opacity: 0.6;
        }
        .breadcrumb .current {
            font-weight: 700;
            color: var(--text);
        }
        .page-header {
            padding: 32px 0 20px;
            border-bottom: 1px solid var(--border);
            background: var(--card);
            margin-bottom: 24px;
        }
        .page-header h1 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--text);
            margin: 0 0 8px;
        }
        .page-header .subtitle {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
            max-width: 700px;
        }
        .section {
            padding: 28px 0;
            border-bottom: 1px solid var(--border);
        }
        .section:last-child {
            border-bottom: none;
        }
        .section-title {
            font-size: 22px;
            font-weight: 650;
            line-height: 1.3;
            color: var(--text);
            margin: 0 0 16px;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .section-title .title-accent {
            display: inline-block;
            width: 4px;
            height: 22px;
            background: var(--accent);
            border-radius: 2px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.95;
            margin: 0 0 20px;
            max-width: 820px;
        }
        .card {
            background: var(--card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: all 0.2s;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            text-decoration: none;
            color: #fff;
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
        }
        .tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
            white-space: nowrap;
        }
        .tag-accent {
            background: var(--accent-light);
            color: #8a6d1f;
        }
        .tag-gray {
            background: #F0EDE5;
            color: var(--text-light);
        }
        .date-badge {
            font-size: 13px;
            color: var(--text-light);
            font-weight: 500;
        }
        .horizontal-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
        }
        .horizontal-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .horizontal-scroll::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }
        .horizontal-scroll::-webkit-scrollbar-track {
            background: transparent;
        }
        .scroll-card {
            flex: 0 0 300px;
            scroll-snap-align: start;
            background: var(--card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
        }
        .scroll-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .scroll-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            background: #e9e6dd;
        }
        .scroll-card-body {
            padding: 14px 16px;
        }
        .scroll-card-body h3 {
            font-size: 15px;
            font-weight: 650;
            color: var(--text);
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .scroll-card-body .summary {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.65;
            margin: 0 0 10px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .scroll-card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .model-section {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }
        .model-section h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 12px;
            line-height: 1.4;
        }
        .model-point {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--text);
        }
        .model-point-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            font-weight: 700;
            margin-top: 2px;
        }
        .trend-chart {
            display: flex;
            align-items: flex-end;
            gap: 8px;
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .trend-bar {
            flex: 1;
            min-width: 40px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
        }
        .trend-bar .bar-fill {
            width: 100%;
            max-width: 56px;
            background: var(--primary);
            border-radius: 4px 4px 0 0;
            transition: height 0.3s;
        }
        .trend-bar .bar-fill.accent {
            background: var(--accent);
        }
        .trend-bar .bar-label {
            font-size: 12px;
            color: var(--text-light);
            font-weight: 500;
            text-align: center;
        }
        .trend-bar .bar-value {
            font-size: 13px;
            font-weight: 700;
            color: var(--text);
        }
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .article-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 12px 16px;
            background: var(--card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: border-color 0.2s;
        }
        .article-item:hover {
            border-color: var(--accent);
        }
        .article-item .article-dot {
            flex-shrink: 0;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            margin-top: 8px;
        }
        .article-item .article-content {
            flex: 1;
        }
        .article-item .article-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.5;
        }
        .article-item .article-title a {
            color: var(--text);
            text-decoration: none;
        }
        .article-item .article-title a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .article-item .article-meta {
            font-size: 12px;
            color: var(--text-light);
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 10px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            padding: 6px 0;
            user-select: none;
            transition: color 0.2s;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            transition: transform 0.2s;
        }
        .faq-question.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent-light);
            color: #8a6d1f;
        }
        .faq-answer {
            padding: 0 0 8px 32px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        .cta-section {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 32px;
            color: #fff;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: center;
        }
        .cta-section h3 {
            font-size: 22px;
            font-weight: 650;
            margin: 0 0 8px;
            color: #fff;
        }
        .cta-section p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
        }
        .cta-form {
            background: var(--card);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-lg);
        }
        .cta-form label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }
        .cta-form input,
        .cta-form select {
            width: 100%;
            height: 42px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: #fff;
            padding: 0 12px;
            font-size: 14px;
            color: var(--text);
            margin-bottom: 12px;
            transition: border-color 0.2s;
        }
        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--primary);
            outline: none;
        }
        .cta-form .btn {
            width: 100%;
            justify-content: center;
            margin-top: 4px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .form-row .form-group {
            margin-bottom: 0;
        }
        .form-group {
            margin-bottom: 12px;
        }
        .form-error {
            color: var(--danger);
            font-size: 12px;
            margin-top: 2px;
            display: none;
        }
        .form-success {
            color: var(--primary);
            font-size: 13px;
            margin-top: 6px;
            display: none;
        }
        .site-footer {
            background: #1F2520;
            color: rgba(255, 255, 255, 0.8);
            padding: 40px 0 20px;
            margin-top: 40px;
            font-size: 14px;
            line-height: 1.7;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 28px;
            margin-bottom: 28px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 10px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            padding: 3px 0;
            text-decoration: none;
        }
        .footer-col a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .footer-subscribe h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 10px;
        }
        .footer-subscribe p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin: 0 0 10px;
        }
        .footer-subscribe input {
            width: 100%;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            padding: 0 12px;
            font-size: 13px;
            outline: none;
        }
        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-section {
                grid-template-columns: 1fr;
                padding: 24px;
            }
            .mega-panel.open {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
                gap: 8px;
            }
            .logo {
                font-size: 17px;
            }
            .main-nav>a {
                padding: 6px 8px;
                font-size: 13px;
            }
            .mega-trigger {
                padding: 6px 8px;
                font-size: 13px;
            }
            .mega-panel.open {
                grid-template-columns: 1fr;
                position: static;
                max-width: 100%;
                margin-top: 8px;
                box-shadow: none;
                border: 1px solid var(--border);
            }
            .page-header h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 19px;
            }
            .scroll-card {
                flex: 0 0 260px;
            }
            .scroll-card img {
                height: 140px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .cta-form {
                padding: 16px;
            }
            .breadcrumb {
                font-size: 12px;
                padding: 12px 0;
            }
            .model-section {
                padding: 18px;
            }
            .section {
                padding: 22px 0;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .logo {
                font-size: 16px;
            }
            .logo-badge {
                width: 26px;
                height: 26px;
                font-size: 13px;
            }
            .main-nav>a {
                font-size: 12px;
                padding: 5px 6px;
            }
            .mega-trigger {
                font-size: 12px;
                padding: 5px 6px;
            }
            .page-header h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 17px;
            }
            .scroll-card {
                flex: 0 0 240px;
            }
            .scroll-card img {
                height: 130px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #186A3B;
            --primary-dark: #0F4E2A;
            --primary-light: #E8F3EC;
            --accent: #C9A227;
            --accent-light: #FBF6E7;
            --text: #1F2520;
            --text-light: #5D6B61;
            --bg: #F7F5EF;
            --card: #FFFFFF;
            --border: #E3DFD4;
            --danger: #D64541;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(31, 37, 32, 0.04);
            --shadow-md: 0 8px 24px rgba(31, 37, 32, 0.06);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08);
            --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s, text-decoration 0.2s, background 0.2s, border-color 0.2s, transform 0.2s, box-shadow 0.2s;
        }

        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header */
        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 40;
            box-shadow: 0 2px 8px rgba(31, 37, 32, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
            flex-wrap: nowrap;
            position: relative;
        }

        .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo a {
            color: inherit;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }

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

        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }

        .main-nav::-webkit-scrollbar {
            height: 3px;
        }

        .main-nav::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }

        .main-nav>a {
            display: inline-flex;
            align-items: center;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            text-decoration: none;
            transition: color 0.15s, background 0.15s;
            position: relative;
        }

        .main-nav>a:hover,
        .main-nav>a.active {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }

        .mega-trigger {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            transition: color 0.15s, background 0.15s;
            user-select: none;
            white-space: nowrap;
        }

        .mega-trigger:hover,
        .mega-trigger.active {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }

        .mega-trigger .arrow {
            transition: transform 0.2s;
            font-size: 10px;
        }

        .mega-trigger.active .arrow {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 680px;
            max-width: 90vw;
            background: var(--card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            padding: 20px;
            display: none;
            z-index: 50;
        }

        .mega-panel.open {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 16px;
        }

        .mega-col {
            min-width: 0;
        }

        .mega-col h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .mega-col a {
            display: block;
            padding: 6px 0;
            font-size: 14px;
            color: var(--text);
            text-decoration: none;
            border-bottom: 1px dashed var(--border);
            transition: color 0.15s;
        }

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

        .mega-card {
            background: var(--bg);
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }

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

        .mega-card-body {
            padding: 10px 12px;
        }

        .mega-card-body h5 {
            font-size: 13px;
            font-weight: 600;
            margin: 0 0 4px;
            color: var(--text);
        }

        .mega-card-body p {
            font-size: 12px;
            color: var(--text-light);
            margin: 0;
            line-height: 1.5;
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: var(--text);
            font-size: 20px;
            line-height: 1;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-light);
            padding: 16px 0 8px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
        }

        .breadcrumb a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        .breadcrumb .sep {
            color: var(--border);
            font-size: 12px;
            user-select: none;
        }

        .breadcrumb .current {
            font-weight: 700;
            color: var(--text);
            cursor: default;
        }

        /* Page header */
        .page-header {
            padding: 32px 0 20px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 28px;
        }

        .page-header h1 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin: 0 0 12px;
            color: var(--text);
        }

        .page-header .subtitle {
            font-size: 16px;
            color: var(--text-light);
            margin: 0;
            max-width: 680px;
            line-height: 1.7;
        }

        /* Section common */
        .section-block {
            margin-bottom: 40px;
        }

        .section-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 18px;
            gap: 12px;
            flex-wrap: wrap;
        }

        .section-heading h2 {
            font-size: 24px;
            font-weight: 650;
            line-height: 1.3;
            margin: 0;
            color: var(--text);
        }

        .section-heading .section-note {
            font-size: 13px;
            color: var(--text-light);
        }

        /* Intro card */
        .intro-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            line-height: 1.9;
            font-size: 15px;
            color: var(--text-light);
        }

        .intro-card strong {
            color: var(--text);
            font-weight: 600;
        }

        /* Expert grid */
        .expert-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .expert-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
            display: flex;
            flex-direction: column;
        }

        .expert-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .expert-card .expert-img {
            width: 100%;
            aspect-ratio: 1.4 / 1;
            object-fit: cover;
            background: var(--bg);
            border-bottom: 1px solid var(--border);
        }

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

        .expert-card .expert-name {
            font-size: 17px;
            font-weight: 650;
            color: var(--text);
            margin: 0 0 4px;
            line-height: 1.4;
        }

        .expert-card .expert-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 20px;
            padding: 3px 12px;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .expert-card .expert-desc {
            font-size: 13px;
            color: var(--text-light);
            margin: 0 0 12px;
            line-height: 1.7;
            flex: 1;
        }

        .expert-card .expert-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-light);
            border-top: 1px dashed var(--border);
            padding-top: 10px;
            flex-wrap: wrap;
        }

        .expert-card .expert-meta .hit-tag {
            font-weight: 600;
            color: var(--primary);
        }

        /* Tag aggregation */
        .tag-cloud {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 26px;
            box-shadow: var(--shadow-sm);
        }

        .tag-cloud .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 12px;
        }

        .tag-cloud .tag-item {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text);
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 20px;
            transition: all 0.2s;
            cursor: default;
        }

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

        .tag-cloud .tag-item.tag-active {
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
        }

        /* Review list */
        .review-list {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .review-list .review-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 24px;
            border-bottom: 1px solid var(--border);
            flex-wrap: wrap;
        }

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

        .review-list .review-date {
            font-size: 13px;
            color: var(--text-light);
            min-width: 80px;
            font-weight: 500;
        }

        .review-list .review-match {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            min-width: 150px;
        }

        .review-list .review-content {
            font-size: 13px;
            color: var(--text-light);
            flex: 1;
            min-width: 160px;
            line-height: 1.6;
        }

        .review-list .review-result {
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            white-space: nowrap;
        }

        .review-list .review-result.hit {
            color: var(--primary);
            background: var(--primary-light);
        }

        .review-list .review-result.miss {
            color: var(--danger);
            background: #FDECEA;
        }

        .review-list .review-result.pending {
            color: var(--text-light);
            background: var(--bg);
        }

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

        .related-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 18px 20px;
            transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
            display: flex;
            flex-direction: column;
            min-height: 130px;
        }

        .related-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
            text-decoration: none;
        }

        .related-card .related-cat {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .related-card .related-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin: 0;
        }

        .related-card:hover .related-title {
            color: var(--primary);
            text-decoration: none;
        }

        /* FAQ */
        .faq-list {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: background 0.2s;
            gap: 16px;
        }

        .faq-question:hover {
            background: var(--bg);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 16px;
            font-weight: 700;
            transition: transform 0.25s ease, background 0.2s;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.75;
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }

        /* CTA */
        .cta-section {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-section .cta-text h2 {
            font-size: 22px;
            font-weight: 650;
            margin: 0 0 8px;
            color: var(--text);
            line-height: 1.4;
        }

        .cta-section .cta-text p {
            font-size: 14px;
            color: var(--text-light);
            margin: 0;
            line-height: 1.7;
            max-width: 560px;
        }

        .cta-section .cta-form {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }

        .cta-section .cta-form input[type="email"] {
            min-width: 240px;
            height: 44px;
            padding: 0 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-family: var(--font-sans);
            outline: none;
            transition: border-color 0.2s, box-shadow 0.2s;
            background: var(--bg);
            color: var(--text);
        }

        .cta-section .cta-form input[type="email"]:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(24, 106, 59, 0.12);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 11px 22px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all 0.2s;
            text-decoration: none;
            font-family: var(--font-sans);
            line-height: 1.5;
            white-space: nowrap;
            min-height: 44px;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(24, 106, 59, 0.25);
        }

        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-secondary:hover {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }

        /* Footer */
        .site-footer {
            background: #1F2520;
            color: #D5DAD4;
            margin-top: 60px;
            padding: 48px 0 20px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .site-footer h3,
        .site-footer h4 {
            color: #fff;
            margin: 0 0 12px;
            font-weight: 600;
        }

        .site-footer h3 {
            font-size: 20px;
        }

        .site-footer h4 {
            font-size: 15px;
        }

        .site-footer p {
            font-size: 13px;
            color: #B8C0B8;
            line-height: 1.7;
            margin: 0 0 12px;
        }

        .site-footer .footer-brand p {
            max-width: 300px;
        }

        .site-footer .footer-col a {
            display: block;
            font-size: 13px;
            color: #B8C0B8;
            padding: 4px 0;
            text-decoration: none;
            transition: color 0.2s;
        }

        .site-footer .footer-col a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .site-footer .footer-subscribe input {
            width: 100%;
            max-width: 260px;
            height: 40px;
            padding: 0 14px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            font-size: 13px;
            font-family: var(--font-sans);
            outline: none;
            transition: border-color 0.2s;
        }

        .site-footer .footer-subscribe input::placeholder {
            color: #8A948A;
        }

        .site-footer .footer-subscribe input:focus {
            border-color: var(--accent);
        }

        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            font-size: 12px;
            color: #8A948A;
        }

        .site-footer .footer-bottom a {
            color: #B8C0B8;
            text-decoration: none;
            font-size: 12px;
        }

        .site-footer .footer-bottom a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .expert-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: auto;
                min-height: 56px;
                flex-wrap: nowrap;
                padding: 8px 0;
            }
            .main-nav {
                gap: 2px;
                padding: 4px 0;
            }
            .main-nav>a {
                padding: 6px 8px;
                font-size: 13px;
            }
            .mega-trigger {
                padding: 6px 8px;
                font-size: 13px;
            }
            .mega-panel {
                position: fixed;
                top: auto;
                bottom: 0;
                left: 0;
                right: 0;
                width: 100%;
                max-width: 100%;
                border-radius: var(--radius-lg) var(--radius-lg) 0 0;
                padding: 16px;
            }
            .mega-panel.open {
                grid-template-columns: 1fr;
                gap: 12px;
                max-height: 65vh;
                overflow-y: auto;
            }
            .mega-card {
                display: none;
            }
            .page-header h1 {
                font-size: 26px;
            }
            .expert-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .review-list .review-item {
                padding: 14px 16px;
                gap: 8px;
            }
            .review-list .review-date {
                min-width: 70px;
                font-size: 12px;
            }
            .review-list .review-match {
                min-width: 120px;
                font-size: 13px;
            }
            .review-list .review-content {
                min-width: 100%;
                font-size: 12px;
            }
            .cta-section {
                padding: 24px 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-section .cta-form {
                width: 100%;
            }
            .cta-section .cta-form input[type="email"] {
                min-width: 0;
                flex: 1;
                width: 100%;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-answer {
                padding: 0 16px;
                font-size: 13px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
            .intro-card {
                padding: 18px 20px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .page-header {
                padding: 20px 0 14px;
                margin-bottom: 18px;
            }
            .page-header h1 {
                font-size: 22px;
            }
            .page-header .subtitle {
                font-size: 14px;
                line-height: 1.6;
            }
            .section-heading h2 {
                font-size: 20px;
            }
            .expert-grid {
                grid-template-columns: 1fr;
            }
            .expert-card .expert-img {
                aspect-ratio: 1.8 / 1;
            }
            .tag-cloud {
                padding: 16px 18px;
            }
            .tag-cloud .tag-item {
                padding: 5px 12px;
                font-size: 12px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 13px;
                min-height: 40px;
            }
            .cta-section .cta-form {
                flex-direction: column;
                width: 100%;
            }
            .cta-section .cta-form input[type="email"] {
                width: 100%;
            }
            .cta-section .cta-form .btn {
                width: 100%;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #186A3B;
            --primary-dark: #0F4E2A;
            --primary-light: #E8F3EC;
            --accent: #C9A227;
            --accent-light: #FBF6E7;
            --text: #1F2520;
            --text-light: #5D6B61;
            --bg: #F7F5EF;
            --card: #FFFFFF;
            --border: #E3DFD4;
            --danger: #D64541;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(31, 37, 32, 0.04);
            --shadow-md: 0 8px 24px rgba(31, 37, 32, 0.06);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08);
            --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s, text-decoration 0.2s;
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section {
            padding: 36px 0 40px;
            border-bottom: 1px solid var(--border);
        }
        .section:last-child {
            border-bottom: none;
        }
        .section-alt {
            background: rgba(24, 106, 59, 0.04);
        }
        .section-heading {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: -0.01em;
            line-height: 1.3;
            margin-bottom: 8px;
            color: var(--text);
        }
        .section-sub {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.6;
            background: var(--primary-light);
            color: var(--primary);
            white-space: nowrap;
        }
        .badge-accent {
            background: var(--accent-light);
            color: #8A6D1A;
        }
        .badge-danger {
            background: #FDE8E7;
            color: var(--danger);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            border-radius: var(--radius-sm);
            padding: 10px 18px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(24, 106, 59, 0.25);
            text-decoration: none;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-sm);
            padding: 9px 16px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, color 0.2s, transform 0.2s;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
            text-decoration: none;
        }
        .card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .card-body {
            padding: 18px 20px;
        }
        .card-title {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 6px;
            color: var(--text);
        }
        .card-text {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 12px;
            color: var(--text-light);
        }
        .card-img-wrap {
            background: #ECEAE2;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            min-height: 160px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-item {
            display: inline-block;
            padding: 6px 16px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 13px;
            color: var(--text);
            transition: border-color 0.2s, color 0.2s, background 0.2s;
            cursor: default;
        }
        .tag-item:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .archive-cal {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 4px;
            max-width: 380px;
        }
        .archive-cal .day {
            text-align: center;
            font-size: 13px;
            padding: 8px 4px;
            border-radius: 6px;
            background: var(--card);
            border: 1px solid var(--border);
            color: var(--text-light);
            transition: background 0.15s, color 0.15s;
            cursor: default;
        }
        .archive-cal .day.highlight {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
            font-weight: 600;
        }
        .archive-cal .day:hover {
            background: var(--accent-light);
            color: #8A6D1A;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .breadcrumb .sep {
            color: var(--border);
            user-select: none;
        }
        .breadcrumb .current {
            font-weight: 600;
            color: var(--text);
        }
        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 40;
            box-shadow: 0 2px 8px rgba(31, 37, 32, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
            flex-wrap: nowrap;
        }
        .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo a {
            color: inherit;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }
        .main-nav::-webkit-scrollbar {
            height: 3px;
        }
        .main-nav::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }
        .main-nav>a {
            display: inline-flex;
            align-items: center;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            text-decoration: none;
            transition: color 0.15s, background 0.15s;
            position: relative;
        }
        .main-nav>a:hover,
        .main-nav>a.active {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }
        .mega-trigger {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            transition: color 0.15s, background 0.15s;
            user-select: none;
            white-space: nowrap;
        }
        .mega-trigger:hover,
        .mega-trigger.active {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }
        .mega-trigger .arrow {
            transition: transform 0.2s;
            font-size: 10px;
        }
        .mega-trigger.active .arrow {
            transform: rotate(180deg);
        }
        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 680px;
            max-width: 90vw;
            background: var(--card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            padding: 20px;
            display: none;
            z-index: 50;
        }
        .mega-panel.open {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 16px;
        }
        .mega-col {
            min-width: 0;
        }
        .mega-col h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .mega-col a {
            display: block;
            padding: 6px 0;
            font-size: 14px;
            color: var(--text);
            text-decoration: none;
            border-bottom: 1px dashed var(--border);
            transition: color 0.15s;
        }
        .mega-col a:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .mega-card {
            background: var(--bg);
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .mega-card img {
            width: 100%;
            height: 100px;
            object-fit: cover;
        }
        .mega-card-body {
            padding: 10px 12px;
        }
        .mega-card-body h5 {
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--text);
        }
        .mega-card-body p {
            font-size: 12px;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0;
        }
        .site-footer {
            background: #1F2520;
            color: rgba(255, 255, 255, 0.78);
            padding: 40px 0 24px;
            margin-top: 20px;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.78);
            text-decoration: none;
            transition: color 0.2s;
        }
        .site-footer a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 24px;
            margin-bottom: 24px;
        }
        .footer-brand h3 {
            font-size: 18px;
            color: #fff;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 14px;
            color: #fff;
            margin-bottom: 10px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            padding: 3px 0;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-subscribe {
            font-size: 13px;
        }
        .footer-subscribe h4 {
            font-size: 14px;
            color: #fff;
            margin-bottom: 10px;
            font-weight: 600;
        }
        .footer-subscribe p {
            font-size: 13px;
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .footer-subscribe input {
            width: 100%;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
            transition: border-color 0.2s, background 0.2s;
        }
        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-subscribe input:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.12);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            overflow: hidden;
            transition: box-shadow 0.2s;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 18px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            gap: 12px;
            background: var(--card);
            border: none;
            width: 100%;
            text-align: left;
            transition: color 0.2s;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            transition: transform 0.25s;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            display: none;
            padding: 0 18px 14px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .news-list-item {
            display: grid;
            grid-template-columns: 260px 1fr;
            gap: 16px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px;
            transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
        }
        .news-list-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .news-list-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            background: #ECEAE2;
            border: 1px solid var(--border);
        }
        .news-list-content {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 8px;
        }
        .news-list-date {
            font-size: 12px;
            color: var(--text-light);
        }
        .news-list-title {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text);
            text-decoration: none;
            transition: color 0.2s;
        }
        .news-list-title:hover {
            color: var(--primary);
        }
        .news-list-summary {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }
        .news-list-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-list-more:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .stat-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
        }
        .stat-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .stat-card .label {
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 4px;
        }
        .stat-card .value {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.03em;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-card .trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            margin-top: 4px;
        }
        .trend-up {
            color: var(--primary);
        }
        .trend-down {
            color: var(--danger);
        }
        .page-title-wrap {
            padding: 28px 0 20px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 28px;
        }
        .page-title {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 8px;
            color: var(--text);
        }
        .page-desc {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            max-width: 720px;
        }
        .support-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .support-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .support-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .support-card p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }
        .cta-band {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            color: #fff;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .cta-band h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 0;
            color: #fff;
        }
        .cta-band p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin: 4px 0 0;
        }
        .cta-band .btn-light {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            color: var(--primary);
            border: none;
            border-radius: var(--radius-sm);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.2s;
            text-decoration: none;
            white-space: nowrap;
        }
        .cta-band .btn-light:hover {
            background: var(--accent-light);
            color: #8A6D1A;
            transform: translateY(-1px);
            text-decoration: none;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .news-list-item {
                grid-template-columns: 200px 1fr;
            }
            .mega-panel {
                width: 100%;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: auto;
                flex-wrap: wrap;
                padding: 8px 0;
                gap: 8px;
            }
            .main-nav {
                order: 3;
                width: 100%;
                gap: 2px;
                padding-bottom: 4px;
            }
            .main-nav>a {
                padding: 6px 10px;
                font-size: 13px;
            }
            .mega-panel {
                position: static;
                width: 100%;
                max-width: 100%;
                box-shadow: none;
                border-radius: 0;
                border: none;
                border-top: 1px solid var(--border);
                padding: 12px 0;
                margin-top: 4px;
            }
            .mega-panel.open {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .page-title {
                font-size: 26px;
            }
            .section {
                padding: 24px 0 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .news-list-item {
                grid-template-columns: 1fr;
            }
            .news-list-img {
                height: 180px;
            }
            .archive-cal {
                grid-template-columns: repeat(7, 1fr);
                gap: 3px;
                max-width: 100%;
            }
            .archive-cal .day {
                font-size: 11px;
                padding: 6px 2px;
            }
            .cta-band {
                padding: 20px;
                flex-direction: column;
                text-align: center;
            }
            .cta-band .btn-light {
                width: 100%;
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .page-title {
                font-size: 22px;
            }
            .page-desc {
                font-size: 14px;
            }
            .section-heading {
                font-size: 19px;
            }
            .main-nav>a {
                padding: 5px 8px;
                font-size: 12px;
            }
            .mega-trigger {
                padding: 6px 8px;
                font-size: 12px;
            }
            .news-list-date {
                font-size: 11px;
            }
            .news-list-title {
                font-size: 14px;
            }
            .news-list-summary {
                font-size: 13px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #186A3B;
            --primary-dark: #0F4E2A;
            --primary-light: #E8F3EC;
            --accent: #C9A227;
            --accent-light: #FBF6E7;
            --text: #1F2520;
            --text-light: #5D6B61;
            --bg: #F7F5EF;
            --card: #FFFFFF;
            --border: #E3DFD4;
            --danger: #D64541;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(31, 37, 32, 0.04);
            --shadow-md: 0 8px 24px rgba(31, 37, 32, 0.06);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08);
            --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s, text-decoration 0.2s;
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 40;
            box-shadow: 0 2px 8px rgba(31, 37, 32, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
            flex-wrap: nowrap;
        }
        .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo a {
            color: inherit;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }
        .main-nav::-webkit-scrollbar {
            height: 3px;
        }
        .main-nav::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }
        .main-nav>a {
            display: inline-flex;
            align-items: center;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            text-decoration: none;
            transition: color 0.15s, background 0.15s;
            position: relative;
        }
        .main-nav>a:hover,
        .main-nav>a.active {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }
        .mega-trigger {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-sm);
            transition: color 0.15s, background 0.15s;
            user-select: none;
            white-space: nowrap;
        }
        .mega-trigger:hover,
        .mega-trigger.active {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }
        .mega-trigger .arrow {
            transition: transform 0.2s;
            font-size: 10px;
        }
        .mega-trigger.active .arrow {
            transform: rotate(180deg);
        }
        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 680px;
            max-width: 90vw;
            background: var(--card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            padding: 20px;
            display: none;
            z-index: 50;
        }
        .mega-panel.open {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 16px;
        }
        .mega-col {
            min-width: 0;
        }
        .mega-col h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .mega-col a {
            display: block;
            padding: 6px 0;
            font-size: 14px;
            color: var(--text);
            text-decoration: none;
            border-bottom: 1px dashed var(--border);
            transition: color 0.15s;
        }
        .mega-col a:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .mega-card {
            background: var(--bg);
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .mega-card img {
            width: 100%;
            height: 80px;
            object-fit: cover;
        }
        .mega-card-body {
            padding: 10px 12px;
        }
        .mega-card-body h5 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }
        .mega-card-body p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.5;
            margin: 0;
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: var(--text);
            font-size: 22px;
            line-height: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
            padding: 16px 0 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-light);
            text-decoration: none;
            transition: color 0.15s;
        }
        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb .separator {
            color: var(--border);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }
        .category-header {
            padding: 16px 0 28px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 28px;
        }
        .category-header h1 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 10px;
        }
        .category-header .subtitle {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.7;
            max-width: 640px;
        }
        .section-block {
            margin-bottom: 40px;
        }
        .section-title {
            font-size: 24px;
            font-weight: 650;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 800px;
        }
        .intro-text {
            font-size: 16px;
            line-height: 2;
            color: var(--text);
            max-width: 800px;
        }
        .strategy-float-panel {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            padding: 24px;
        }
        .strategy-float-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px dashed var(--border);
        }
        .strategy-float-item:last-child {
            border-bottom: none;
        }
        .strategy-float-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--accent-light);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }
        .strategy-float-text h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }
        .strategy-float-text p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }
        .article-list-item {
            display: grid;
            grid-template-columns: 220px 1fr;
            gap: 20px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
            padding: 16px;
            margin-bottom: 16px;
        }
        .article-list-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .article-list-item img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
        }
        .article-list-content {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .article-list-content h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .article-list-content .summary {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            flex-grow: 1;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 8px;
        }
        .article-meta .date {
            font-size: 13px;
            color: var(--text-light);
        }
        .article-tag {
            display: inline-block;
            padding: 2px 10px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
        }
        .article-tag.accent {
            background: var(--accent-light);
            color: var(--accent);
        }
        .rational-tips {
            background: var(--card);
            border-left: 4px solid var(--accent);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            border-top: 1px solid var(--border);
            border-right: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .rational-tips h4 {
            font-size: 18px;
            font-weight: 650;
            color: var(--text);
            margin-bottom: 14px;
        }
        .rational-tips ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .rational-tips ul li {
            font-size: 15px;
            color: var(--text);
            line-height: 1.8;
            padding: 8px 0 8px 24px;
            position: relative;
            border-bottom: 1px dashed var(--border);
        }
        .rational-tips ul li:last-child {
            border-bottom: none;
        }
        .rational-tips ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 16px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            opacity: 0.6;
        }
        .related-articles {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .related-article-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 14px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
        }
        .related-article-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .related-article-card h5 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 6px;
        }
        .related-article-card p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            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;
            font-family: var(--font-sans);
            line-height: 1.5;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: transform 0.2s;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 18px 16px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            color: #fff;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .cta-section h3 {
            font-size: 22px;
            font-weight: 650;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .cta-section p {
            font-size: 15px;
            line-height: 1.8;
            opacity: 0.9;
            margin: 0;
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .cta-form input,
        .cta-form select {
            height: 42px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            padding: 0 14px;
            font-size: 14px;
            font-family: var(--font-sans);
            transition: border-color 0.2s, background 0.2s;
        }
        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }
        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.18);
            outline: none;
        }
        .cta-form select option {
            color: var(--text);
            background: #fff;
        }
        .cta-btn {
            height: 42px;
            border-radius: var(--radius-sm);
            border: none;
            background: var(--accent);
            color: var(--text);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            font-family: var(--font-sans);
            transition: background 0.2s, transform 0.2s;
        }
        .cta-btn:hover {
            background: #e0b840;
            transform: translateY(-1px);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            padding: 40px 0 24px;
        }
        .footer-brand h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            padding: 4px 0;
            transition: color 0.15s;
        }
        .footer-col a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .footer-subscribe h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-subscribe p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .footer-subscribe input {
            width: 100%;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            padding: 0 12px;
            font-size: 14px;
            font-family: var(--font-sans);
        }
        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-subscribe input:focus {
            border-color: var(--accent);
            outline: none;
        }
        .site-footer {
            background: #1F2520;
            color: #fff;
            margin-top: 48px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 16px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color 0.15s;
        }
        .footer-bottom a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .related-articles {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-section {
                grid-template-columns: 1fr;
                padding: 24px;
            }
            .article-list-item {
                grid-template-columns: 160px 1fr;
                gap: 14px;
            }
            .article-list-item img {
                height: 110px;
            }
            .category-header h1 {
                font-size: 28px;
            }
        }
        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--card);
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                padding: 8px 16px;
                flex-direction: column;
                align-items: stretch;
                max-height: 70vh;
                overflow-y: auto;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav>a {
                padding: 12px 8px;
                border-bottom: 1px dashed var(--border);
            }
            .mega-trigger {
                padding: 12px 8px;
                border-bottom: 1px dashed var(--border);
            }
            .mega-panel {
                position: static;
                width: 100%;
                max-width: 100%;
                box-shadow: none;
                border: none;
                padding: 8px 0;
                margin-top: 4px;
            }
            .mega-panel.open {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .mega-col a {
                padding: 8px 0;
            }
            .header-inner {
                height: 56px;
            }
            .logo {
                font-size: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 28px 0 16px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .related-articles {
                grid-template-columns: 1fr;
            }
            .article-list-item {
                grid-template-columns: 1fr;
                padding: 12px;
            }
            .article-list-item img {
                height: 160px;
            }
            .category-header h1 {
                font-size: 24px;
            }
            .section-title {
                font-size: 20px;
            }
            .strategy-float-panel {
                padding: 16px;
            }
            .rational-tips {
                padding: 20px;
            }
            .breadcrumb {
                font-size: 13px;
                padding: 12px 0 4px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .category-header h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 18px;
            }
            .article-list-content h3 {
                font-size: 15px;
            }
            .article-list-content .summary {
                font-size: 13px;
            }
            .intro-text {
                font-size: 15px;
            }
            .cta-section {
                padding: 20px 16px;
            }
            .cta-section h3 {
                font-size: 18px;
            }
            .strategy-float-text h5 {
                font-size: 14px;
            }
            .strategy-float-text p {
                font-size: 13px;
            }
        }