/* roulang page: index */
:root {
            --primary: #1E8E3E;
            --primary-deep: #0F5C2E;
            --accent: #F97316;
            --accent-soft: #F59E0B;
            --bg: #F8FAFC;
            --surface: #FFFFFF;
            --ink: #0F172A;
            --ink-soft: #475569;
            --line: #E2E8F0;
            --dark-bg: #111827;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-hover: 0 8px 24px rgba(0,0,0,0.12);
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: 'system-ui', '-apple-system', 'BlinkMacSystemFont', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background-color: var(--bg);
            color: var(--ink);
            line-height: 1.65;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        input {
            font-family: inherit;
            transition: var(--transition-base);
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 导航样式 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            box-shadow: 0 1px 3px rgba(0,0,0,0.06);
        }

        .nav-container {
            display: flex;
            align-items: center;
            gap: 20px;
            height: 64px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--ink);
            flex-shrink: 0;
        }

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

        .nav-search {
            flex: 1;
            max-width: 280px;
            margin-left: 12px;
        }

        .nav-search-form {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--line);
            border-radius: 8px;
            padding: 0 12px;
            height: 38px;
            transition: var(--transition-base);
        }

        .nav-search-form:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 142, 62, 0.12);
        }

        .nav-search-form input {
            flex: 1;
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--ink);
            padding: 0 8px;
            width: 100%;
        }

        .nav-search-form input::placeholder {
            color: #94A3B8;
        }

        .nav-search-form .search-icon {
            color: #94A3B8;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }

        .nav-link {
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-soft);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.06);
        }

        .nav-link.active {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.1);
            font-weight: 600;
        }

        .nav-version {
            padding: 6px 12px;
            font-size: 13px;
            font-weight: 500;
            color: var(--ink-soft);
            border: 1px solid var(--line);
            border-radius: 8px;
            background: var(--surface);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-hamburger {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            border: 1px solid var(--line);
            background: var(--surface);
            color: var(--ink);
            font-size: 22px;
            flex-shrink: 0;
        }

        .mobile-menu {
            display: none;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 12px 0;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }

        .mobile-menu.open {
            display: block;
            max-height: 420px;
            padding: 12px 0;
        }

        .mobile-menu-inner {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 0 16px;
        }

        .mobile-menu .nav-link {
            padding: 12px 16px;
            font-size: 15px;
            border-radius: 8px;
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-version {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .nav-search {
                max-width: 200px;
            }
        }

        @media (max-width: 640px) {
            .nav-search {
                display: none;
            }
            .nav-container {
                gap: 8px;
                height: 56px;
            }
            .nav-logo {
                font-size: 17px;
            }
            .nav-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
        }

        /* Hero 样式 */
        .hero-section {
            background: linear-gradient(160deg, #0F1F0F 0%, #111827 45%, #1A2E1A 100%);
            position: relative;
            overflow: hidden;
            padding: 72px 0 80px;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(30, 142, 62, 0.3) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -140px;
            left: -100px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(249, 115, 22, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1.4fr 1fr;
            gap: 36px;
            align-items: center;
        }

        .hero-side-left,
        .hero-side-right {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(30, 142, 62, 0.25);
            color: #A7F3D0;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 20px;
            border: 1px solid rgba(30, 142, 62, 0.4);
            margin-bottom: 20px;
        }

        .hero-badge-dot {
            width: 8px;
            height: 8px;
            background: #4ADE80;
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.8); }
        }

        .hero-title {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.25;
            color: #FFFFFF;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

        .hero-title .highlight {
            color: #4ADE80;
            position: relative;
        }

        .hero-desc {
            font-size: 16px;
            font-weight: 400;
            color: #CBD5E1;
            line-height: 1.8;
            max-width: 680px;
            margin: 0 auto 28px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            transition: var(--transition-base);
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: #EA580C;
            box-shadow: 0 6px 24px rgba(249, 115, 22, 0.45);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--accent-soft);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #E2E8F0;
            font-weight: 600;
            font-size: 15px;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(226, 232, 240, 0.3);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(226, 232, 240, 0.55);
            color: #fff;
        }

        .btn-secondary:focus-visible {
            outline: 2px solid #4ADE80;
            outline-offset: 2px;
        }

        .hero-value-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: #CBD5E1;
            font-size: 14px;
            line-height: 1.55;
        }

        .hero-value-icon {
            width: 28px;
            height: 28px;
            background: rgba(30, 142, 62, 0.3);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #4ADE80;
            font-size: 14px;
            flex-shrink: 0;
        }

        .hero-download-buttons {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            color: #E2E8F0;
            font-size: 13px;
            font-weight: 500;
            padding: 10px 18px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .btn-download:hover {
            background: rgba(255, 255, 255, 0.18);
            border-color: rgba(255, 255, 255, 0.35);
            color: #fff;
        }

        .hero-data-card {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 16px;
            padding: 20px;
        }

        .hero-data-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            color: #E2E8F0;
            font-size: 14px;
        }

        .hero-data-row:last-child {
            border-bottom: none;
        }

        .hero-data-label {
            color: #94A3B8;
        }

        .hero-data-value {
            font-weight: 700;
            color: #4ADE80;
            font-size: 16px;
        }

        .hero-screen-stage {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 18px;
            padding: 20px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
            position: relative;
        }

        .hero-screen-header {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hero-screen-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #4ADE80;
        }

        .hero-screen-dot:nth-child(2) {
            background: #F59E0B;
        }
        .hero-screen-dot:nth-child(3) {
            background: #EF4444;
        }

        .hero-screen-title {
            margin-left: 8px;
            color: #94A3B8;
            font-size: 12px;
            font-weight: 500;
        }

        .hero-screen-body {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }

        .hero-screen-block {
            background: rgba(255, 255, 255, 0.07);
            border-radius: 10px;
            padding: 14px;
            min-height: 80px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .hero-screen-block-label {
            font-size: 11px;
            color: #94A3B8;
            margin-bottom: 6px;
        }

        .hero-screen-block-value {
            font-size: 20px;
            font-weight: 700;
            color: #4ADE80;
        }

        @media (max-width: 1024px) {
            .hero-container {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-side-left,
            .hero-side-right {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-screen-body {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 640px) {
            .hero-section {
                padding: 48px 0 56px;
            }
            .hero-title {
                font-size: 26px;
                line-height: 1.35;
            }
            .hero-desc {
                font-size: 14px;
                margin-bottom: 20px;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
                gap: 10px;
            }
            .btn-primary,
            .btn-secondary {
                justify-content: center;
                width: 100%;
            }
            .hero-side-left,
            .hero-side-right {
                flex-direction: column;
                gap: 12px;
            }
            .hero-data-card {
                padding: 14px;
            }
            .hero-screen-block-value {
                font-size: 16px;
            }
        }

        /* 板块通用样式 */
        .section {
            padding: 64px 0;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(30, 142, 62, 0.08);
            padding: 4px 12px;
            border-radius: 6px;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--ink);
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--ink-soft);
            line-height: 1.75;
            max-width: 720px;
        }

        /* KPI 看板 */
        .kpi-board {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-card);
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .kpi-item {
            text-align: center;
            padding: 12px;
            border-right: 1px solid var(--line);
        }

        .kpi-item:last-child {
            border-right: none;
        }

        .kpi-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .kpi-label {
            font-size: 13px;
            color: var(--ink-soft);
            margin-top: 6px;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .kpi-board {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
                padding: 20px;
            }
            .kpi-item {
                border-right: none;
                border-bottom: 1px solid var(--line);
                padding: 8px;
            }
            .kpi-item:nth-last-child(-n+2) {
                border-bottom: none;
            }
            .kpi-number {
                font-size: 24px;
            }
        }

        /* 赛事速览条 */
        .match-strip {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 14px;
        }

        .match-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 16px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .match-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #C8E6C9;
        }

        .match-card-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .match-league {
            font-size: 12px;
            font-weight: 600;
            color: var(--ink-soft);
        }

        .match-status {
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            white-space: nowrap;
        }

        .status-live {
            background: #FEE2E2;
            color: #DC2626;
        }

        .status-ended {
            background: #E2E8F0;
            color: #475569;
        }

        .status-upcoming {
            background: #DCFCE7;
            color: #16A34A;
        }

        .match-teams {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
        }

        .match-score {
            font-size: 18px;
            font-weight: 800;
            color: var(--primary);
        }

        .match-time {
            font-size: 12px;
            color: #94A3B8;
        }

        /* 服务矩阵卡片 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .service-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 12px;
            cursor: pointer;
        }

        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: #A7F3D0;
        }

        .service-card-icon {
            width: 48px;
            height: 48px;
            background: rgba(30, 142, 62, 0.1);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
        }

        .service-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
        }

        .service-card-desc {
            font-size: 13px;
            color: var(--ink-soft);
            line-height: 1.65;
        }

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

        @media (max-width: 640px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
        }

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

        .scene-card {
            background: var(--bg);
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 18px;
            transition: var(--transition-base);
        }

        .scene-card:hover {
            background: var(--surface);
            box-shadow: var(--shadow-card);
            border-color: #C8E6C9;
        }

        .scene-card-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }

        .scene-card-desc {
            font-size: 13px;
            color: var(--ink-soft);
            line-height: 1.6;
        }

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

        @media (max-width: 640px) {
            .scene-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 截图区 */
        .screenshot-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .screenshot-card {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--line);
            background: var(--surface);
        }

        .screenshot-card img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .screenshot-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(15, 23, 42, 0.85));
            padding: 24px 18px 16px;
            color: #fff;
        }

        .screenshot-label {
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        @media (max-width: 768px) {
            .screenshot-grid {
                grid-template-columns: 1fr;
            }
            .screenshot-card img {
                height: 200px;
            }
        }

        /* 结果对比 */
        .comparison-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .comparison-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 22px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .comparison-card.featured {
            border-color: var(--accent);
            box-shadow: 0 4px 20px rgba(249, 115, 22, 0.15);
        }

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

        .comparison-value {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 4px;
        }

        .comparison-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
        }

        .comparison-desc {
            font-size: 12px;
            color: var(--ink-soft);
            margin-top: 6px;
        }

        @media (max-width: 768px) {
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* 里程碑时间线 */
        .timeline-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            max-width: 640px;
            margin: 0 auto;
            position: relative;
            padding-left: 24px;
        }

        .timeline-list::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--line);
        }

        .timeline-item {
            position: relative;
            padding: 0 0 28px 28px;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -20px;
            top: 4px;
            width: 12px;
            height: 12px;
            background: var(--primary);
            border-radius: 50%;
            border: 3px solid var(--surface);
            box-shadow: 0 0 0 2px var(--primary);
        }

        .timeline-year {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
        }

        .timeline-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            margin: 2px 0 4px;
        }

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

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

        .case-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

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

        .case-card-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 8px;
        }

        .case-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }

        .case-card-desc {
            font-size: 13px;
            color: var(--ink-soft);
            line-height: 1.65;
        }

        @media (max-width: 768px) {
            .case-grid {
                grid-template-columns: 1fr;
            }
        }

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

        .pricing-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 16px;
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .pricing-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .pricing-card.highlight {
            border-color: var(--accent);
            box-shadow: 0 6px 28px rgba(249, 115, 22, 0.18);
        }

        .pricing-plan {
            font-size: 13px;
            font-weight: 600;
            color: var(--ink-soft);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .pricing-price {
            font-size: 34px;
            font-weight: 800;
            color: var(--ink);
        }

        .pricing-price span {
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-soft);
        }

        .pricing-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }
        .pricing-features li {
            font-size: 13px;
            color: var(--ink-soft);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .pricing-features li::before {
            content: '✓';
            color: var(--primary);
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            padding: 11px 20px;
            border-radius: 8px;
            transition: var(--transition-base);
            cursor: pointer;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }

        .btn-solid-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 11px 20px;
            border-radius: 8px;
            transition: var(--transition-base);
            cursor: pointer;
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.25);
        }
        .btn-solid-accent:hover {
            background: #EA580C;
            box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
            transform: translateY(-1px);
        }

        @media (max-width: 900px) {
            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

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

        .review-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 18px;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .review-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .review-user {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .review-avatar {
            width: 40px;
            height: 40px;
            background: #E2E8F0;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            color: var(--ink-soft);
            flex-shrink: 0;
        }
        .review-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
        }
        .review-role {
            font-size: 12px;
            color: #94A3B8;
        }
        .review-text {
            font-size: 13px;
            color: var(--ink-soft);
            line-height: 1.65;
        }
        .review-stars {
            color: #F59E0B;
            font-size: 14px;
            letter-spacing: 2px;
        }

        @media (max-width: 900px) {
            .review-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 640px) {
            .review-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 新闻中心 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .news-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 18px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .news-date {
            font-size: 12px;
            font-weight: 500;
            color: #94A3B8;
        }
        .news-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.45;
        }
        .news-summary {
            font-size: 13px;
            color: var(--ink-soft);
            line-height: 1.6;
            flex: 1;
        }
        .news-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition-base);
        }
        .news-link:hover {
            color: var(--primary-deep);
            gap: 8px;
        }

        @media (max-width: 900px) {
            .news-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 640px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 品牌介绍 */
        .brand-about {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 16px;
            padding: 36px;
            box-shadow: var(--shadow-card);
        }
        .brand-about p {
            font-size: 15px;
            color: var(--ink-soft);
            line-height: 1.85;
            margin-bottom: 12px;
        }
        .brand-about p:last-child {
            margin-bottom: 0;
        }

        /* 开通 CTA */
        .cta-banner {
            background: linear-gradient(135deg, #0F5C2E 0%, #1E8E3E 60%, #2EA34A 100%);
            border-radius: 20px;
            padding: 56px 36px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-title {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }
        .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 560px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 2;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            padding: 14px 36px;
            border-radius: 10px;
            transition: var(--transition-base);
            cursor: pointer;
            box-shadow: 0 6px 24px rgba(249, 115, 22, 0.4);
            position: relative;
            z-index: 2;
        }
        .cta-btn:hover {
            background: #EA580C;
            box-shadow: 0 8px 32px rgba(249, 115, 22, 0.55);
            transform: translateY(-2px);
        }

        /* FAQ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 0;
            transition: var(--transition-base);
            overflow: hidden;
        }
        .faq-item:hover {
            border-color: #C8E6C9;
        }
        .faq-question {
            width: 100%;
            padding: 18px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            text-align: left;
            background: none;
            border: none;
            cursor: pointer;
            gap: 12px;
            transition: var(--transition-base);
            background: var(--surface);
        }
        .faq-question:hover {
            color: var(--primary);
            background: #FAFBFC;
        }
        .faq-icon {
            font-size: 20px;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            font-size: 14px;
            color: var(--ink-soft);
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* 合作媒体 */
        .media-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .media-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 30px;
            padding: 10px 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--ink-soft);
            transition: var(--transition-base);
        }
        .media-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(30, 142, 62, 0.04);
        }
        .media-chip-dot {
            width: 8px;
            height: 8px;
            background: #CBD5E1;
            border-radius: 50%;
        }

        /* 数据服务 */
        .data-service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .data-service-card {
            background: var(--dark-bg);
            border-radius: 12px;
            padding: 20px;
            color: #E2E8F0;
            transition: var(--transition-base);
        }
        .data-service-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        }
        .data-service-title {
            font-size: 14px;
            font-weight: 600;
            color: #4ADE80;
            margin-bottom: 6px;
        }
        .data-service-desc {
            font-size: 12px;
            color: #94A3B8;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .data-service-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 移动端下载 */
        .download-section {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 16px;
            padding: 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card);
        }
        .download-info h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 6px;
        }
        .download-info p {
            font-size: 14px;
            color: var(--ink-soft);
        }
        .download-buttons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn-download-solid {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 12px 22px;
            border-radius: 8px;
            transition: var(--transition-base);
            cursor: pointer;
        }
        .btn-download-solid:hover {
            background: var(--primary-deep);
            transform: translateY(-1px);
        }

        /* 订阅表单 */
        .subscribe-box {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 16px;
            padding: 28px;
            text-align: center;
            box-shadow: var(--shadow-card);
            max-width: 560px;
            margin: 0 auto;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            margin-top: 16px;
        }
        .subscribe-input {
            flex: 1;
            padding: 12px 16px;
            border: 1px solid var(--line);
            border-radius: 8px;
            font-size: 14px;
            outline: none;
            transition: var(--transition-base);
            background: var(--bg);
        }
        .subscribe-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 142, 62, 0.1);
            background: #fff;
        }
        @media (max-width: 640px) {
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-input {
                width: 100%;
            }
        }

        /* 页脚 */
        .site-footer {
            background: var(--dark-bg);
            color: #94A3B8;
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand {
            font-size: 14px;
            line-height: 1.7;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-logo-icon {
            width: 30px;
            height: 30px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 15px;
            font-weight: 700;
        }
        .footer-heading {
            font-size: 14px;
            font-weight: 700;
            color: #E2E8F0;
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            font-size: 13px;
            color: #94A3B8;
            transition: var(--transition-base);
        }
        .footer-links a:hover {
            color: #4ADE80;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 0;
            font-size: 13px;
            flex-wrap: wrap;
            gap: 10px;
        }
        .footer-bottom-links a {
            color: #94A3B8;
            transition: var(--transition-base);
        }
        .footer-bottom-links a:hover {
            color: #4ADE80;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .site-footer {
                padding-top: 36px;
            }
        }

        /* 通用过渡 */
        .fade-in {
            animation: fadeInUp 0.6s ease both;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1E8E3E;
            --primary-deep: #0F5C2E;
            --accent: #F97316;
            --accent-soft: #F59E0B;
            --bg: #F8FAFC;
            --surface: #FFFFFF;
            --ink: #0F172A;
            --ink-soft: #475569;
            --line: #E2E8F0;
            --dark-bg: #111827;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'system-ui', '-apple-system', 'BlinkMacSystemFont', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background-color: var(--bg);
            color: var(--ink);
            line-height: 1.65;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }
        input {
            font-family: inherit;
            transition: var(--transition-base);
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        /* 导航样式 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
        }
        .nav-container {
            display: flex;
            align-items: center;
            gap: 20px;
            height: 64px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--ink);
            flex-shrink: 0;
        }
        .nav-logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-search {
            flex: 1;
            max-width: 280px;
            margin-left: 12px;
        }
        .nav-search-form {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--line);
            border-radius: 8px;
            padding: 0 12px;
            height: 38px;
            transition: var(--transition-base);
        }
        .nav-search-form:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 142, 62, 0.12);
        }
        .nav-search-form input {
            flex: 1;
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--ink);
            padding: 0 8px;
            width: 100%;
        }
        .nav-search-form input::placeholder {
            color: #94A3B8;
        }
        .nav-search-form .search-icon {
            color: #94A3B8;
            font-size: 16px;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }
        .nav-link {
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-soft);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition-base);
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.06);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.1);
            font-weight: 600;
        }
        .nav-version {
            padding: 6px 12px;
            font-size: 13px;
            font-weight: 500;
            color: var(--ink-soft);
            border: 1px solid var(--line);
            border-radius: 8px;
            background: var(--surface);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-hamburger {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            border: 1px solid var(--line);
            background: var(--surface);
            color: var(--ink);
            font-size: 22px;
            flex-shrink: 0;
        }
        .mobile-menu {
            display: none;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 12px 0;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }
        .mobile-menu.open {
            display: block;
            max-height: 420px;
            padding: 12px 0;
        }
        .mobile-menu-inner {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 0 16px;
        }
        .mobile-menu .nav-link {
            padding: 12px 16px;
            font-size: 15px;
            border-radius: 8px;
        }
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-version {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
        }
        @media (max-width: 768px) {
            .nav-search {
                max-width: 200px;
            }
        }
        @media (max-width: 520px) {
            .nav-search {
                display: none;
            }
            .nav-container {
                gap: 8px;
                height: 56px;
            }
            .nav-logo {
                font-size: 17px;
            }
            .nav-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
        }
        /* 面包屑 */
        .breadcrumb-section {
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 16px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--ink-soft);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--ink-soft);
            transition: var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: #CBD5E1;
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--ink);
            font-weight: 600;
        }
        /* 板块通用 */
        .section {
            padding: 64px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-dark {
            background: var(--dark-bg);
            color: #fff;
        }
        .section-alt {
            background: var(--surface);
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--ink);
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--ink-soft);
            line-height: 1.7;
            max-width: 680px;
        }
        .section-head {
            margin-bottom: 36px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-sm {
                padding: 28px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .section-subtitle {
                font-size: 15px;
            }
            .section-head {
                margin-bottom: 24px;
            }
        }
        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: var(--transition-base);
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn:active {
            transform: translateY(1px);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-deep);
            box-shadow: 0 4px 16px rgba(30, 142, 62, 0.3);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: #EA580C;
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--ink);
            border: 1px solid var(--line);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(30, 142, 62, 0.04);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 8px;
        }
        .btn-lg {
            padding: 16px 32px;
            font-size: 17px;
            border-radius: 12px;
        }
        /* 卡片 */
        .card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(30, 142, 62, 0.25);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 20px;
        }
        .card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--ink);
        }
        .card-text {
            font-size: 14px;
            color: var(--ink-soft);
            line-height: 1.7;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 20px;
            white-space: nowrap;
        }
        .badge-green {
            background: rgba(30, 142, 62, 0.1);
            color: var(--primary);
        }
        .badge-orange {
            background: rgba(249, 115, 22, 0.12);
            color: var(--accent);
        }
        .badge-gray {
            background: rgba(71, 85, 105, 0.1);
            color: var(--ink-soft);
        }
        /* 统计条 */
        .stat-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }
        .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--ink-soft);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stat-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 28px;
            }
            .stat-item {
                padding: 20px 12px;
            }
        }
        @media (max-width: 520px) {
            .stat-bar {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
        }
        /* 列表卡片 */
        .list-card {
            display: flex;
            gap: 20px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            padding: 16px;
            transition: var(--transition-base);
        }
        .list-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(30, 142, 62, 0.25);
        }
        .list-card-img {
            width: 160px;
            min-width: 160px;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-radius: 10px;
        }
        .list-card-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
        }
        .list-card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--ink-soft);
            margin-bottom: 8px;
            flex-wrap: wrap;
        }
        .list-card-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 6px;
            color: var(--ink);
        }
        .list-card-text {
            font-size: 14px;
            color: var(--ink-soft);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        @media (max-width: 640px) {
            .list-card {
                flex-direction: column;
                gap: 12px;
                padding: 12px;
            }
            .list-card-img {
                width: 100%;
                min-width: unset;
                aspect-ratio: 16/9;
            }
        }
        /* FAQ */
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:last-child {
            margin-bottom: 0;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            background: transparent;
            width: 100%;
            text-align: left;
            cursor: pointer;
            transition: var(--transition-base);
        }
        .faq-question:hover {
            background: rgba(30, 142, 62, 0.04);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--bg);
            color: var(--ink-soft);
            font-size: 18px;
            font-weight: 700;
            transition: var(--transition-base);
        }
        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 20px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--ink-soft);
            line-height: 1.8;
            margin: 0;
        }
        /* 订阅CTA */
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
            border-radius: 16px;
            padding: 48px 40px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-box h3 {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .cta-box p {
            font-size: 15px;
            opacity: 0.9;
            line-height: 1.7;
            max-width: 480px;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            flex: 1;
            max-width: 420px;
            min-width: 280px;
        }
        .cta-form input {
            flex: 1;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 8px;
            padding: 12px 16px;
            font-size: 14px;
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            outline: none;
            transition: var(--transition-base);
        }
        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }
        .cta-form input:focus {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.22);
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.15);
        }
        .cta-form .btn-accent {
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .cta-box {
                padding: 32px 24px;
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            .cta-box h3 {
                font-size: 20px;
            }
            .cta-form {
                max-width: 100%;
                min-width: unset;
                flex-direction: column;
                width: 100%;
            }
            .cta-form .btn-accent {
                width: 100%;
            }
        }
        /* 热门推荐小卡片 */
        .mini-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 10px;
            padding: 16px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .mini-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(30, 142, 62, 0.25);
        }
        .mini-card-img {
            width: 72px;
            height: 72px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .mini-card-title {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--ink);
            margin-bottom: 4px;
        }
        .mini-card-text {
            font-size: 13px;
            color: var(--ink-soft);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        /* 页脚 */
        .site-footer {
            background: var(--dark-bg);
            color: #D1D5DB;
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #9CA3AF;
            max-width: 380px;
        }
        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            color: #9CA3AF;
            font-size: 14px;
            transition: var(--transition-base);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 14px;
            color: #9CA3AF;
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-bottom-links a {
            color: #9CA3AF;
            font-size: 14px;
            transition: var(--transition-base);
        }
        .footer-bottom-links a:hover {
            color: #fff;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .site-footer {
                padding: 32px 0 20px;
            }
        }
        /* H1区域 */
        .page-h1-section {
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 32px 0;
        }
        .page-h1 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--ink);
            margin-bottom: 10px;
        }
        .page-h1-sub {
            font-size: 15px;
            color: var(--ink-soft);
            line-height: 1.7;
            max-width: 720px;
        }
        @media (max-width: 768px) {
            .page-h1 {
                font-size: 26px;
            }
            .page-h1-section {
                padding: 24px 0;
            }
        }
        /* 网格 */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        @media (max-width: 768px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .grid-3 {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }
        /* 数据标签 */
        .player-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 10px;
        }
        .player-tag {
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 500;
            border-radius: 6px;
            background: var(--bg);
            color: var(--ink-soft);
            border: 1px solid var(--line);
            transition: var(--transition-base);
        }
        .player-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(30, 142, 62, 0.04);
        }

/* roulang page: category1 */
:root {
            --primary: #1E8E3E;
            --primary-deep: #0F5C2E;
            --accent: #F97316;
            --accent-soft: #F59E0B;
            --bg: #F8FAFC;
            --surface: #FFFFFF;
            --ink: #0F172A;
            --ink-soft: #475569;
            --line: #E2E8F0;
            --dark-bg: #111827;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'system-ui', '-apple-system', 'BlinkMacSystemFont', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--ink);
            line-height: 1.65;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        input {
            font-family: inherit;
            transition: var(--transition-base);
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 导航样式 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
        }

        .nav-container {
            display: flex;
            align-items: center;
            gap: 20px;
            height: 64px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--ink);
            flex-shrink: 0;
        }

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

        .nav-search {
            flex: 1;
            max-width: 280px;
            margin-left: 12px;
        }

        .nav-search-form {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--line);
            border-radius: 8px;
            padding: 0 12px;
            height: 38px;
            transition: var(--transition-base);
        }

        .nav-search-form:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 142, 62, 0.12);
        }

        .nav-search-form input {
            flex: 1;
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--ink);
            padding: 0 8px;
            width: 100%;
        }

        .nav-search-form input::placeholder {
            color: #94A3B8;
        }

        .nav-search-form .search-icon {
            color: #94A3B8;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }

        .nav-link {
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-soft);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.06);
        }

        .nav-link.active {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.1);
            font-weight: 600;
        }

        .nav-version {
            padding: 6px 12px;
            font-size: 13px;
            font-weight: 500;
            color: var(--ink-soft);
            border: 1px solid var(--line);
            border-radius: 8px;
            background: var(--surface);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-hamburger {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            border: 1px solid var(--line);
            background: var(--surface);
            color: var(--ink);
            font-size: 22px;
            flex-shrink: 0;
        }

        .mobile-menu {
            display: none;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 12px 0;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }

        .mobile-menu.open {
            display: block;
            max-height: 420px;
            padding: 12px 0;
        }

        .mobile-menu-inner {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 0 16px;
        }

        .mobile-menu .nav-link {
            padding: 12px 16px;
            font-size: 15px;
            border-radius: 8px;
            display: block;
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-version {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .nav-search {
                max-width: 200px;
            }
        }

        @media (max-width: 768px) {
            .nav-search {
                display: none;
            }
            .nav-container {
                gap: 8px;
                height: 56px;
            }
            .nav-logo {
                font-size: 17px;
            }
            .nav-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
        }

        /* 面包屑 */
        .breadcrumb-bar {
            background: #F1F5F9;
            border-bottom: 1px solid var(--line);
            padding: 16px 0;
        }

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

        .breadcrumb a {
            color: var(--ink-soft);
        }

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

        .breadcrumb .separator {
            color: #94A3B8;
            user-select: none;
        }

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

        /* 分类页 H1 区 */
        .page-hero {
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 32px 0 36px;
        }

        .page-hero h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--ink);
            margin-bottom: 12px;
        }

        .page-hero .subtitle {
            font-size: 16px;
            color: var(--ink-soft);
            line-height: 1.8;
            max-width: 720px;
        }

        @media (max-width: 768px) {
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero {
                padding: 24px 0 28px;
            }
            .page-hero .subtitle {
                font-size: 15px;
            }
        }

        /* 两栏布局 */
        .page-layout {
            display: flex;
            gap: 32px;
            padding-top: 28px;
            padding-bottom: 64px;
        }

        /* 侧栏 */
        .page-sidebar {
            width: 260px;
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-sticky {
            position: sticky;
            top: 84px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 16px;
            box-shadow: var(--shadow-card);
        }

        .sidebar-title {
            font-size: 13px;
            font-weight: 700;
            color: var(--ink-soft);
            text-transform: uppercase;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--line);
        }

        .sidebar-link {
            display: block;
            padding: 8px 12px;
            font-size: 14px;
            color: var(--ink-soft);
            border-radius: 8px;
            transition: var(--transition-base);
            margin-bottom: 2px;
        }

        .sidebar-link:hover {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.06);
        }

        .sidebar-link.active {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.1);
            font-weight: 600;
        }

        .sidebar-toggle-btn {
            display: none;
            width: 100%;
            justify-content: space-between;
            align-items: center;
            padding: 10px 16px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
        }

        @media (max-width: 1024px) {
            .page-layout {
                flex-direction: column;
                gap: 20px;
            }
            .page-sidebar {
                width: 100%;
            }
            .sidebar-sticky {
                position: static;
                padding: 0;
                border: none;
                box-shadow: none;
                background: transparent;
            }
            .sidebar-toggle-btn {
                display: flex;
                margin-bottom: 8px;
            }
            .sidebar-links-container {
                display: none;
                flex-direction: column;
                gap: 4px;
                background: var(--surface);
                border: 1px solid var(--line);
                border-radius: 8px;
                padding: 12px;
                box-shadow: var(--shadow-card);
            }
            .sidebar-links-container.open {
                display: flex;
            }
            .sidebar-title {
                display: none;
            }
            .sidebar-link {
                padding: 10px 12px;
            }
        }

        /* 主内容区 */
        .page-content {
            flex: 1;
            min-width: 0;
        }

        /* 板块样式 */
        .section {
            margin-bottom: 40px;
        }

        .section-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 18px;
            flex-wrap: wrap;
            gap: 8px;
        }

        .section-heading h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.3;
        }

        .section-heading .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            background: rgba(30, 142, 62, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: 999px;
        }

        /* 数据列表卡片 */
        .data-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 16px;
        }

        .data-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 16px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }

        .data-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(30, 142, 62, 0.3);
        }

        .data-card-img {
            width: 56px;
            height: 56px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
            background: #E2E8F0;
        }

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

        .data-card-league {
            font-size: 12px;
            font-weight: 600;
            color: var(--ink-soft);
            text-transform: uppercase;
            letter-spacing: 0.02em;
            margin-bottom: 2px;
        }

        .data-card-matchup {
            font-size: 15px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .data-card-score {
            font-size: 20px;
            font-weight: 800;
            color: var(--ink);
            margin-bottom: 4px;
        }

        .data-card-score .score-highlight {
            color: var(--accent);
        }

        .data-card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--ink-soft);
            flex-wrap: wrap;
        }

        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 2px 8px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 600;
            white-space: nowrap;
        }

        .status-badge.live {
            background: rgba(249, 115, 22, 0.12);
            color: var(--accent);
        }

        .status-badge.live::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            animation: pulse-dot 1.2s ease-in-out infinite;
        }

        .status-badge.ended {
            background: rgba(71, 85, 105, 0.1);
            color: var(--ink-soft);
        }

        .status-badge.upcoming {
            background: rgba(30, 142, 62, 0.1);
            color: var(--primary);
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        /* 数据统计条 */
        .stats-bar {
            background: var(--dark-bg);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-bottom: 40px;
        }

        .stat-item {
            text-align: center;
            padding: 8px;
        }

        .stat-number {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .stat-number .stat-accent {
            color: var(--accent);
        }

        .stat-label {
            font-size: 13px;
            color: #94A3B8;
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                padding: 18px 16px;
                gap: 12px;
            }
            .stat-number {
                font-size: 24px;
            }
        }

        @media (max-width: 480px) {
            .stats-bar {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* 热门推荐 */
        .hot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .hot-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

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

        .hot-card-img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            background: #E2E8F0;
        }

        .hot-card-body {
            padding: 14px 16px 16px;
        }

        .hot-card-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .hot-card-desc {
            font-size: 13px;
            color: var(--ink-soft);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        @media (max-width: 768px) {
            .hot-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 订阅 CTA */
        .subscribe-cta {
            background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary) 100%);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .subscribe-cta-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }

        .subscribe-cta-text p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
        }

        .subscribe-form {
            display: flex;
            gap: 8px;
            flex-shrink: 0;
            min-width: 280px;
        }

        .subscribe-form input {
            flex: 1;
            height: 42px;
            border-radius: 8px;
            border: none;
            outline: none;
            padding: 0 14px;
            font-size: 14px;
            color: var(--ink);
            background: #fff;
        }

        .subscribe-form input::placeholder {
            color: #94A3B8;
        }

        .subscribe-form button {
            height: 42px;
            padding: 0 18px;
            border-radius: 8px;
            background: var(--accent);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
        }

        .subscribe-form button:hover {
            background: #EA580C;
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.35);
        }

        @media (max-width: 768px) {
            .subscribe-cta {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
                padding: 22px 18px;
            }
            .subscribe-form {
                min-width: 0;
                flex-direction: column;
            }
            .subscribe-form button {
                width: 100%;
            }
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 10px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(30, 142, 62, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 18px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            background: transparent;
            width: 100%;
            text-align: left;
            border-radius: 10px;
            transition: var(--transition-base);
        }

        .faq-question:hover {
            background: rgba(30, 142, 62, 0.04);
        }

        .faq-question .faq-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(30, 142, 62, 0.1);
            color: var(--primary);
            font-size: 16px;
            font-weight: 700;
            transition: var(--transition-base);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 18px;
            font-size: 14px;
            color: var(--ink-soft);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 18px 16px;
        }

        /* 页脚 */
        .site-footer {
            background: var(--dark-bg);
            color: #E2E8F0;
            padding: 40px 0 20px;
            margin-top: 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 24px;
            margin-bottom: 28px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 18px;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-logo-icon {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .footer-brand p {
            font-size: 13px;
            color: #94A3B8;
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-heading {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .footer-links a {
            font-size: 13px;
            color: #94A3B8;
            transition: var(--transition-base);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: #64748B;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom-links a {
            color: #94A3B8;
        }

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

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        /* 通用按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 20px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-deep);
            box-shadow: 0 4px 12px rgba(30, 142, 62, 0.3);
            transform: translateY(-1px);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 20px;
            background: transparent;
            color: var(--ink);
            font-size: 14px;
            font-weight: 600;
            border: 1px solid var(--line);
            border-radius: var(--radius-btn);
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(30, 142, 62, 0.04);
        }

        .btn-secondary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .btn-sm {
            padding: 6px 12px;
            font-size: 12px;
            font-weight: 500;
            border-radius: 6px;
            border: 1px solid var(--line);
            background: transparent;
            color: var(--ink-soft);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition-base);
        }

        .btn-sm:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(30, 142, 62, 0.04);
        }

        /* 分隔线 */
        .section-divider {
            height: 1px;
            background: var(--line);
            margin: 32px 0;
        }

        /* 焦点可见性 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

/* roulang page: category2 */
:root {
            --primary: #1E8E3E;
            --primary-deep: #0F5C2E;
            --accent: #F97316;
            --accent-soft: #F59E0B;
            --bg: #F8FAFC;
            --surface: #FFFFFF;
            --ink: #0F172A;
            --ink-soft: #475569;
            --line: #E2E8F0;
            --dark-bg: #111827;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'system-ui', '-apple-system', 'BlinkMacSystemFont', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background-color: var(--bg);
            color: var(--ink);
            line-height: 1.65;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        input {
            font-family: inherit;
            transition: var(--transition-base);
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 导航样式 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
        }

        .nav-container {
            display: flex;
            align-items: center;
            gap: 20px;
            height: 64px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--ink);
            flex-shrink: 0;
        }

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

        .nav-search {
            flex: 1;
            max-width: 280px;
            margin-left: 12px;
        }

        .nav-search-form {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--line);
            border-radius: 8px;
            padding: 0 12px;
            height: 38px;
            transition: var(--transition-base);
        }

        .nav-search-form:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 142, 62, 0.12);
        }

        .nav-search-form input {
            flex: 1;
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--ink);
            padding: 0 8px;
            width: 100%;
        }

        .nav-search-form input::placeholder {
            color: #94A3B8;
        }

        .nav-search-form .search-icon {
            color: #94A3B8;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }

        .nav-link {
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-soft);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.06);
        }

        .nav-link.active {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.1);
            font-weight: 600;
        }

        .nav-version {
            padding: 6px 12px;
            font-size: 13px;
            font-weight: 500;
            color: var(--ink-soft);
            border: 1px solid var(--line);
            border-radius: 8px;
            background: var(--surface);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-hamburger {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            border: 1px solid var(--line);
            background: var(--surface);
            color: var(--ink);
            font-size: 22px;
            flex-shrink: 0;
        }

        .mobile-menu {
            display: none;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 12px 0;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }

        .mobile-menu.open {
            display: block;
            max-height: 420px;
            padding: 12px 0;
        }

        .mobile-menu-inner {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 0 16px;
        }

        .mobile-menu .nav-link {
            padding: 12px 16px;
            font-size: 15px;
            border-radius: 8px;
        }

        /* 面包屑样式 */
        .breadcrumb-section {
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 20px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--ink-soft);
            margin-bottom: 8px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--ink-soft);
        }

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

        .breadcrumb-sep {
            color: #94A3B8;
            font-size: 12px;
        }

        .breadcrumb-current {
            color: var(--ink-soft);
            font-weight: 500;
        }

        .page-h1 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--ink);
            margin: 0;
        }

        /* 导语样式 */
        .category-intro {
            font-size: 16px;
            line-height: 1.75;
            color: var(--ink-soft);
            margin: 0;
            max-width: 760px;
        }

        /* section 通用 */
        .content-section {
            padding: 48px 0;
        }

        .content-section-alt {
            background: var(--surface);
            padding: 48px 0;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--ink);
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--ink-soft);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        /* 文章列表卡片 */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

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

        .article-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(30, 142, 62, 0.3);
        }

        .article-card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-bottom: 1px solid var(--line);
        }

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

        .article-card-date {
            font-size: 13px;
            color: #94A3B8;
            margin-bottom: 8px;
        }

        .article-card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--ink);
            margin-bottom: 10px;
        }

        .article-card-summary {
            font-size: 14px;
            line-height: 1.7;
            color: var(--ink-soft);
            margin-bottom: 16px;
            flex: 1;
        }

        .read-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition-base);
            align-self: flex-start;
        }

        .read-more-btn:hover {
            color: var(--primary-deep);
            gap: 10px;
        }

        .read-more-btn .arrow {
            font-size: 16px;
            transition: var(--transition-base);
        }

        /* 统计条 */
        .stats-bar {
            background: var(--dark-bg);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            color: #fff;
        }

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

        .stat-number {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--accent-soft);
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 14px;
            color: #CBD5E1;
        }

        /* 热门推荐 */
        .hot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .hot-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .hot-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(30, 142, 62, 0.3);
        }

        .hot-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .hot-card-desc {
            font-size: 14px;
            color: var(--ink-soft);
            line-height: 1.65;
        }

        /* 订阅 CTA */
        .subscribe-cta {
            background: var(--dark-bg);
            background-image: linear-gradient(135deg, #0F5C2E 0%, #111827 60%);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 24px;
            color: #fff;
        }

        .subscribe-cta-content {
            flex: 1;
            min-width: 260px;
        }

        .subscribe-cta-title {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 6px;
            color: #fff;
        }

        .subscribe-cta-desc {
            font-size: 14px;
            color: #CBD5E1;
            line-height: 1.65;
        }

        .subscribe-form {
            display: flex;
            gap: 8px;
            flex: 1;
            min-width: 260px;
            max-width: 440px;
        }

        .subscribe-form input {
            flex: 1;
            padding: 12px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 14px;
            outline: none;
            min-width: 0;
        }

        .subscribe-form input::placeholder {
            color: #94A3B8;
        }

        .subscribe-form input:focus {
            border-color: var(--accent-soft);
            box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            white-space: nowrap;
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .btn-accent:hover {
            background: #E8650A;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.35);
        }

        .btn-accent:active {
            transform: translateY(0);
        }

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

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item.active {
            border-color: rgba(30, 142, 62, 0.4);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            cursor: pointer;
            width: 100%;
            text-align: left;
            transition: var(--transition-base);
        }

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

        .faq-icon {
            font-size: 20px;
            color: var(--primary);
            flex-shrink: 0;
            transition: var(--transition-base);
            line-height: 1;
        }

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

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

        .faq-item.active .faq-answer {
            max-height: 260px;
            padding: 0 20px 16px;
        }

        .faq-answer p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--ink-soft);
            margin: 0;
        }

        /* 页脚 */
        .site-footer {
            background: var(--dark-bg);
            color: #CBD5E1;
            padding: 48px 0 24px;
            margin-top: 48px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-logo-icon {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: #94A3B8;
            margin: 0;
        }

        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

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

        .footer-links a {
            font-size: 14px;
            color: #94A3B8;
            transition: var(--transition-base);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: #94A3B8;
        }

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

        .footer-bottom-links a {
            color: #94A3B8;
            font-size: 14px;
        }

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

        /* 更多文章按钮 */
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--line);
            background: var(--surface);
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            transition: var(--transition-base);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(30, 142, 62, 0.04);
        }

        .btn-outline:active {
            transform: translateY(1px);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }

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

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .nav-version {
                display: none;
            }

            .nav-hamburger {
                display: flex;
            }

            .nav-search {
                max-width: 200px;
                flex: 0 1 auto;
            }

            .nav-container {
                gap: 8px;
                height: 56px;
            }

            .nav-logo {
                font-size: 17px;
            }

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

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .content-section,
            .content-section-alt {
                padding: 36px 0;
            }

            .article-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .hot-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                padding: 20px 16px;
                gap: 16px;
            }

            .stat-number {
                font-size: 26px;
            }

            .subscribe-cta {
                padding: 28px 20px;
                flex-direction: column;
                align-items: stretch;
            }

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

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

        @media (max-width: 520px) {
            .nav-search {
                display: none;
            }

            .nav-container {
                gap: 6px;
                height: 52px;
            }

            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .content-section,
            .content-section-alt {
                padding: 28px 0;
            }

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

            .article-card-body {
                padding: 14px 16px 16px;
            }

            .article-card-title {
                font-size: 16px;
            }

            .page-h1 {
                font-size: 22px;
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                padding: 16px 12px;
                gap: 12px;
            }

            .stat-number {
                font-size: 22px;
            }

            .stat-label {
                font-size: 12px;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .btn-accent {
                width: 100%;
                text-align: center;
            }

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

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

/* roulang page: category4 */
:root {
            --primary: #1E8E3E;
            --primary-deep: #0F5C2E;
            --accent: #F97316;
            --accent-soft: #F59E0B;
            --bg: #F8FAFC;
            --surface: #FFFFFF;
            --ink: #0F172A;
            --ink-soft: #475569;
            --line: #E2E8F0;
            --dark-bg: #111827;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'system-ui', '-apple-system', 'BlinkMacSystemFont', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background-color: var(--bg);
            color: var(--ink);
            line-height: 1.65;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

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

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

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

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

        input,
        textarea {
            font-family: inherit;
            transition: var(--transition-base);
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ========== 导航样式 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
        }

        .nav-container {
            display: flex;
            align-items: center;
            gap: 20px;
            height: 64px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--ink);
            flex-shrink: 0;
        }

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

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

        .nav-search {
            flex: 1;
            max-width: 280px;
            margin-left: 12px;
        }

        .nav-search-form {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--line);
            border-radius: 8px;
            padding: 0 12px;
            height: 38px;
            transition: var(--transition-base);
        }

        .nav-search-form:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 142, 62, 0.12);
        }

        .nav-search-form input {
            flex: 1;
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--ink);
            padding: 0 8px;
            width: 100%;
        }

        .nav-search-form input::placeholder {
            color: #94A3B8;
        }

        .nav-search-form .search-icon {
            color: #94A3B8;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }

        .nav-link {
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-soft);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.06);
        }

        .nav-link.active {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.1);
            font-weight: 600;
        }

        .nav-version {
            padding: 6px 12px;
            font-size: 13px;
            font-weight: 500;
            color: var(--ink-soft);
            border: 1px solid var(--line);
            border-radius: 8px;
            background: var(--surface);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-hamburger {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            border: 1px solid var(--line);
            background: var(--surface);
            color: var(--ink);
            font-size: 22px;
            flex-shrink: 0;
        }

        .mobile-menu {
            display: none;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 0;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }

        .mobile-menu.open {
            max-height: 420px;
            padding: 12px 0;
        }

        .mobile-menu-inner {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 0 16px;
        }

        .mobile-menu .nav-link {
            padding: 12px 16px;
            font-size: 15px;
            border-radius: 8px;
            display: block;
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-version {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .nav-search {
                max-width: 200px;
            }
        }

        @media (max-width: 640px) {
            .nav-search {
                display: none;
            }
            .nav-container {
                gap: 8px;
                height: 56px;
            }
            .nav-logo {
                font-size: 17px;
            }
            .nav-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 12px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--ink-soft);
        }

        .breadcrumb a {
            color: var(--ink-soft);
        }

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

        .breadcrumb .separator {
            color: #CBD5E1;
            font-size: 12px;
        }

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

        /* ========== 分类页布局（含侧栏） ========== */
        .category-layout {
            display: flex;
            gap: 32px;
            padding: 40px 0 64px;
        }

        .category-sidebar {
            width: 260px;
            flex-shrink: 0;
            position: sticky;
            top: 80px;
            align-self: flex-start;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 20px 16px;
            box-shadow: var(--shadow-card);
        }

        .category-sidebar-heading {
            font-size: 14px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 12px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
            letter-spacing: 0.5px;
        }

        .category-sidebar-links {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .category-sidebar-links a {
            padding: 10px 12px;
            font-size: 14px;
            color: var(--ink-soft);
            border-radius: 8px;
            transition: var(--transition-base);
            display: block;
        }

        .category-sidebar-links a:hover {
            background: rgba(30, 142, 62, 0.06);
            color: var(--primary);
        }

        .category-sidebar-links a.active-sidebar {
            background: rgba(30, 142, 62, 0.1);
            color: var(--primary);
            font-weight: 600;
        }

        .category-main {
            flex: 1;
            min-width: 0;
        }

        @media (max-width: 1024px) {
            .category-layout {
                flex-direction: column;
                gap: 24px;
                padding: 24px 0 48px;
            }
            .category-sidebar {
                position: static;
                width: 100%;
                padding: 16px;
            }
        }

        /* ========== H1 区块 ========== */
        .page-h1-section {
            margin-bottom: 8px;
        }

        .page-h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--ink);
            margin: 0 0 8px 0;
            letter-spacing: -0.3px;
        }

        @media (max-width: 768px) {
            .page-h1 {
                font-size: 26px;
            }
        }

        .page-h1-sub {
            font-size: 17px;
            color: var(--ink-soft);
            line-height: 1.75;
            margin: 0 0 24px 0;
            max-width: 720px;
        }

        /* ========== 话题卡片列表 ========== */
        .topic-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .topic-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 20px;
            display: flex;
            gap: 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .topic-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(30, 142, 62, 0.35);
            transform: translateY(-2px);
        }

        .topic-card-image {
            width: 180px;
            height: 120px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
            background: #E2E8F0;
        }

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

        .topic-card-content {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        .topic-card-tags {
            display: flex;
            gap: 8px;
            margin-bottom: 8px;
            flex-wrap: wrap;
        }

        .topic-tag {
            padding: 3px 10px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 20px;
            white-space: nowrap;
        }

        .topic-tag-hot {
            background: rgba(249, 115, 22, 0.12);
            color: #C2410C;
        }

        .topic-tag-new {
            background: rgba(30, 142, 62, 0.12);
            color: var(--primary);
        }

        .topic-tag-discuss {
            background: rgba(71, 85, 105, 0.1);
            color: var(--ink-soft);
        }

        .topic-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 6px 0;
            line-height: 1.4;
            transition: var(--transition-base);
        }

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

        .topic-card-desc {
            font-size: 14px;
            color: var(--ink-soft);
            line-height: 1.6;
            margin: 0 0 12px 0;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .topic-card-meta {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: #94A3B8;
            align-items: center;
        }

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

        @media (max-width: 640px) {
            .topic-card {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }
            .topic-card-image {
                width: 100%;
                height: 160px;
            }
            .topic-card-title {
                font-size: 16px;
            }
        }

        /* ========== 统计条 ========== */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin: 32px 0;
        }

        .stat-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 20px 16px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .stat-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(30, 142, 62, 0.3);
        }

        .stat-number {
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 13px;
            color: var(--ink-soft);
            margin-top: 6px;
        }

        @media (max-width: 768px) {
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 24px;
            }
        }

        @media (max-width: 400px) {
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-item {
                padding: 14px 10px;
            }
            .stat-number {
                font-size: 20px;
            }
        }

        /* ========== 热门推荐 ========== */
        .hot-recommend-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin: 24px 0;
        }

        .hot-recommend-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 16px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .hot-recommend-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(249, 115, 22, 0.3);
            transform: translateY(-2px);
        }

        .hot-recommend-rank {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
        }

        .hot-recommend-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.45;
        }

        .hot-recommend-meta {
            font-size: 12px;
            color: #94A3B8;
        }

        @media (max-width: 768px) {
            .hot-recommend-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* ========== 订阅 CTA ========== */
        .subscribe-cta-section {
            background: linear-gradient(135deg, var(--dark-bg) 0%, #1a2a1f 100%);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            margin: 32px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 24px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
        }

        .subscribe-cta-text {
            flex: 1;
            min-width: 240px;
        }

        .subscribe-cta-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 8px 0;
            line-height: 1.35;
        }

        .subscribe-cta-text p {
            font-size: 15px;
            color: #CBD5E1;
            margin: 0;
            line-height: 1.6;
        }

        .subscribe-cta-form {
            flex: 0 0 auto;
            display: flex;
            gap: 10px;
            min-width: 280px;
        }

        .subscribe-cta-form input {
            flex: 1;
            padding: 12px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #FFFFFF;
            font-size: 14px;
            outline: none;
            min-width: 180px;
        }

        .subscribe-cta-form input::placeholder {
            color: #94A3B8;
        }

        .subscribe-cta-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.25);
        }

        .subscribe-cta-form button {
            padding: 12px 24px;
            background: var(--accent);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 14px;
            border-radius: var(--radius-btn);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.35);
        }

        .subscribe-cta-form button:hover {
            background: #EA580C;
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.45);
            transform: translateY(-1px);
        }

        .subscribe-cta-form button:active {
            transform: translateY(0);
        }

        @media (max-width: 640px) {
            .subscribe-cta-section {
                padding: 24px 20px;
                flex-direction: column;
                align-items: stretch;
                gap: 16px;
            }
            .subscribe-cta-form {
                flex-direction: column;
                min-width: 0;
            }
            .subscribe-cta-form input {
                min-width: 0;
                width: 100%;
            }
            .subscribe-cta-form button {
                width: 100%;
            }
        }

        /* ========== FAQ ========== */
        .faq-section {
            margin: 32px 0 8px;
        }

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

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

        .faq-item:hover {
            border-color: rgba(30, 142, 62, 0.3);
        }

        .faq-question {
            width: 100%;
            padding: 18px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            text-align: left;
            background: transparent;
            cursor: pointer;
            transition: var(--transition-base);
            user-select: none;
        }

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

        .faq-question:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: -2px;
        }

        .faq-icon {
            font-size: 20px;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform 0.3s ease;
            font-weight: 700;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            color: var(--ink-soft);
            font-size: 15px;
            line-height: 1.7;
        }

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

        .faq-answer p {
            margin: 0;
        }

        /* ========== 板块标题 ========== */
        .section-title-group {
            margin-bottom: 20px;
        }

        .section-title-group h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 6px 0;
            line-height: 1.3;
            letter-spacing: -0.2px;
        }

        .section-title-group p {
            font-size: 15px;
            color: var(--ink-soft);
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .section-title-group h2 {
                font-size: 21px;
            }
        }

        /* ========== 查看更多按钮 ========== */
        .view-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border: 1px solid var(--line);
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            color: var(--ink-soft);
            background: var(--surface);
            transition: var(--transition-base);
        }

        .view-more-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(30, 142, 62, 0.04);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        }

        .view-more-btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ========== 分隔线 ========== */
        .section-divider {
            height: 1px;
            background: var(--line);
            margin: 40px 0;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--dark-bg);
            color: #CBD5E1;
            padding: 48px 0 32px;
            margin-top: 48px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: #94A3B8;
            margin-top: 12px;
            max-width: 320px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: #FFFFFF;
        }

        .footer-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            color: #fff;
        }

        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

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

        .footer-links a {
            font-size: 14px;
            color: #94A3B8;
            transition: var(--transition-base);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 14px;
            color: #64748B;
        }

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

        .footer-bottom-links a {
            color: #64748B;
            transition: var(--transition-base);
        }

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

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer {
                padding: 32px 0 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        /* ========== 通用按钮 focus 状态 ========== */
        .btn:focus-visible,
        .view-more-btn:focus-visible,
        .subscribe-cta-form button:focus-visible,
        .faq-question:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ========== 移动端侧栏抽屉按钮 ========== */
        .sidebar-toggle-btn {
            display: none;
            padding: 10px 16px;
            border: 1px solid var(--line);
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            color: var(--ink-soft);
            background: var(--surface);
            gap: 8px;
            align-items: center;
            margin-bottom: 16px;
        }

        @media (max-width: 1024px) {
            .sidebar-toggle-btn {
                display: inline-flex;
            }
        }

        .category-sidebar.collapsed {
            display: none;
        }

        @media (max-width: 1024px) {
            .category-sidebar {
                display: none;
            }
            .category-sidebar.open {
                display: block;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1E8E3E;
            --primary-deep: #0F5C2E;
            --accent: #F97316;
            --accent-soft: #F59E0B;
            --bg: #F8FAFC;
            --surface: #FFFFFF;
            --ink: #0F172A;
            --ink-soft: #475569;
            --line: #E2E8F0;
            --dark-bg: #111827;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-hover: 0 8px 24px rgba(0,0,0,0.12);
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'system-ui', '-apple-system', 'BlinkMacSystemFont', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background-color: var(--bg);
            color: var(--ink);
            line-height: 1.65;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

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

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

        input {
            font-family: inherit;
            transition: var(--transition-base);
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ========== 导航样式 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            box-shadow: 0 1px 3px rgba(0,0,0,0.06);
        }

        .nav-container {
            display: flex;
            align-items: center;
            gap: 20px;
            height: 64px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--ink);
            flex-shrink: 0;
        }

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

        .nav-search {
            flex: 1;
            max-width: 280px;
            margin-left: 12px;
        }

        .nav-search-form {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--line);
            border-radius: 8px;
            padding: 0 12px;
            height: 38px;
            transition: var(--transition-base);
        }

        .nav-search-form:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 142, 62, 0.12);
        }

        .nav-search-form input {
            flex: 1;
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--ink);
            padding: 0 8px;
            width: 100%;
        }

        .nav-search-form input::placeholder {
            color: #94A3B8;
        }

        .nav-search-form .search-icon {
            color: #94A3B8;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }

        .nav-link {
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-soft);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.06);
        }

        .nav-link.active {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.1);
            font-weight: 600;
        }

        .nav-version {
            padding: 6px 12px;
            font-size: 13px;
            font-weight: 500;
            color: var(--ink-soft);
            border: 1px solid var(--line);
            border-radius: 8px;
            background: var(--surface);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-hamburger {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            border: 1px solid var(--line);
            background: var(--surface);
            color: var(--ink);
            font-size: 22px;
            flex-shrink: 0;
        }

        .mobile-menu {
            display: none;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 12px 0;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }

        .mobile-menu.open {
            display: block;
            max-height: 420px;
            padding: 12px 0;
        }

        .mobile-menu-inner {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 0 16px;
        }

        .mobile-menu .nav-link {
            padding: 12px 16px;
            font-size: 15px;
            border-radius: 8px;
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-version {
                display: none;
            }
            .nav-hamburger {
                display: flex;
                margin-left: auto;
            }
            .nav-search {
                max-width: 200px;
            }
            .nav-container {
                gap: 10px;
            }
        }

        @media (max-width: 640px) {
            .nav-search {
                display: none;
            }
            .nav-container {
                height: 56px;
            }
            .nav-logo {
                font-size: 17px;
            }
            .nav-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 16px;
            }
        }

        /* ========== 面包屑 & H1 区 ========== */
        .page-header {
            background: #EEF2F7;
            padding: 28px 0 24px;
            border-bottom: 1px solid var(--line);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--ink-soft);
            margin-bottom: 10px;
        }

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

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

        .breadcrumb .divider {
            color: #94A3B8;
            font-size: 12px;
        }

        .page-header h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--ink);
            margin: 0;
            letter-spacing: -0.01em;
        }

        @media (max-width: 640px) {
            .page-header {
                padding: 20px 0 16px;
            }
            .page-header h1 {
                font-size: 26px;
            }
            .breadcrumb {
                font-size: 13px;
            }
        }

        /* ========== 侧栏 + 主内容 ========== */
        .content-layout {
            display: flex;
            gap: 32px;
            padding: 40px 0 0;
            align-items: flex-start;
        }

        .sidebar {
            width: 280px;
            flex-shrink: 0;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px;
            position: sticky;
            top: 96px;
        }

        .sidebar-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary);
            display: inline-block;
        }

        .sidebar-group {
            margin-bottom: 18px;
        }

        .sidebar-group-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--ink-soft);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 8px;
        }

        .sidebar-link {
            display: block;
            padding: 8px 12px;
            font-size: 14px;
            color: var(--ink-soft);
            border-radius: 6px;
            transition: var(--transition-base);
            border-left: 3px solid transparent;
        }

        .sidebar-link:hover {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.05);
            border-left-color: var(--primary);
        }

        .sidebar-link.active {
            color: var(--primary);
            background: rgba(30, 142, 62, 0.08);
            border-left-color: var(--primary);
            font-weight: 600;
        }

        .sidebar-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .sidebar-tag {
            display: inline-block;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 500;
            color: var(--ink-soft);
            background: var(--bg);
            border: 1px solid var(--line);
            border-radius: 20px;
            transition: var(--transition-base);
        }

        .sidebar-tag:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: rgba(30, 142, 62, 0.06);
        }

        .sidebar-toggle-btn {
            display: none;
            width: 100%;
            padding: 12px 16px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            cursor: pointer;
            margin-bottom: 16px;
            text-align: left;
        }

        .sidebar-toggle-btn .icon {
            float: right;
            font-size: 18px;
            transition: transform 0.3s ease;
        }

        .sidebar-toggle-btn.active .icon {
            transform: rotate(180deg);
        }

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

        @media (max-width: 1024px) {
            .content-layout {
                flex-direction: column;
                gap: 20px;
            }
            .sidebar {
                width: 100%;
                position: static;
                top: auto;
                flex-shrink: 0;
            }
            .sidebar-toggle-btn {
                display: block;
            }
            .sidebar-collapsible {
                display: none;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease;
            }
            .sidebar-collapsible.open {
                display: block;
                max-height: 600px;
            }
        }

        /* ========== 分类导语 ========== */
        .intro-text {
            font-size: 16px;
            color: var(--ink-soft);
            line-height: 1.8;
            margin-bottom: 32px;
            background: var(--surface);
            padding: 20px 24px;
            border-radius: var(--radius-card);
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
        }

        /* ========== 词条卡片网格 ========== */
        .entries-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-bottom: 40px;
        }

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

        .entry-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(30, 142, 62, 0.3);
        }

        .entry-card-image {
            height: 180px;
            overflow: hidden;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

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

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

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

        .entry-card-category {
            display: inline-block;
            padding: 3px 10px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(30, 142, 62, 0.08);
            border-radius: 20px;
            margin-bottom: 10px;
            width: fit-content;
        }

        .entry-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 10px;
            line-height: 1.4;
        }

        .entry-card-body p {
            font-size: 14px;
            color: var(--ink-soft);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }

        .entry-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition-base);
        }

        .entry-card-link:hover {
            color: var(--primary-deep);
            gap: 10px;
        }

        .entry-card-link .arrow {
            font-size: 16px;
            transition: transform 0.2s ease;
        }

        .entry-card-link:hover .arrow {
            transform: translateX(3px);
        }

        @media (max-width: 768px) {
            .entries-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .entry-card-image {
                height: 160px;
            }
            .entry-card-body {
                padding: 16px 18px;
            }
        }

        /* ========== 数据统计条 ========== */
        .stats-bar {
            background: var(--dark-bg);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            margin-bottom: 40px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            box-shadow: var(--shadow-card);
        }

        .stat-item {
            text-align: center;
            padding: 8px 12px;
        }

        .stat-item .stat-number {
            display: block;
            font-size: 32px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: #CBD5E1;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                padding: 24px 20px;
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 26px;
            }
        }

        @media (max-width: 480px) {
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
        }

        /* ========== 热门推荐 ========== */
        .recommend-section {
            margin-bottom: 40px;
        }

        .recommend-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 16px;
        }

        .recommend-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 12px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
            cursor: pointer;
        }

        .recommend-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(30, 142, 62, 0.3);
        }

        .recommend-img {
            height: 110px;
            overflow: hidden;
        }

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

        .recommend-body {
            padding: 14px 16px;
        }

        .recommend-body h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            margin: 0 0 6px;
            line-height: 1.4;
        }

        .recommend-body p {
            font-size: 13px;
            color: var(--ink-soft);
            line-height: 1.6;
            margin: 0;
        }

        @media (max-width: 768px) {
            .recommend-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .recommend-img {
                height: 100px;
            }
        }

        /* ========== 订阅 CTA ========== */
        .subscribe-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            margin-bottom: 40px;
            box-shadow: var(--shadow-card);
        }

        .subscribe-cta h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
        }

        .subscribe-cta p {
            font-size: 15px;
            color: rgba(255,255,255,0.85);
            margin: 0 0 20px;
            line-height: 1.7;
        }

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

        .subscribe-form input {
            flex: 1;
            padding: 12px 16px;
            font-size: 15px;
            border: none;
            border-radius: var(--radius-btn);
            background: #fff;
            color: var(--ink);
            outline: none;
        }

        .subscribe-form input:focus {
            box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.35);
        }

        .subscribe-form button {
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            background: var(--accent);
            border-radius: var(--radius-btn);
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .subscribe-form button:hover {
            background: var(--accent-soft);
            box-shadow: 0 4px 12px rgba(249, 115, 22, 0.35);
            transform: translateY(-1px);
        }

        .subscribe-form button:active {
            transform: translateY(0);
        }

        @media (max-width: 640px) {
            .subscribe-cta {
                padding: 24px 20px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form button {
                width: 100%;
                padding: 14px;
            }
        }

        /* ========== FAQ ========== */
        .faq-section {
            margin-bottom: 40px;
        }

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

        .faq-item.active {
            border-color: rgba(30, 142, 62, 0.4);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            transition: var(--transition-base);
            user-select: none;
            gap: 16px;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--ink-soft);
            transition: var(--transition-base);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            color: var(--ink-soft);
            font-size: 15px;
            line-height: 1.75;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        @media (max-width: 640px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 16px;
                font-size: 14px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 16px;
            }
        }

        /* ========== 版块标题通用 ========== */
        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--ink-soft);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        @media (max-width: 640px) {
            .section-title {
                font-size: 19px;
            }
            .section-subtitle {
                font-size: 14px;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--dark-bg);
            color: #CBD5E1;
            padding: 48px 0 24px;
            margin-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.08);
        }

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

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-logo-icon {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
            margin: 0;
            max-width: 360px;
        }

        .footer-heading {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }

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

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

        .footer-links a {
            font-size: 14px;
            color: #94A3B8;
            transition: var(--transition-base);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.08);
            font-size: 14px;
            color: #94A3B8;
        }

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

        .footer-bottom-links a {
            color: #94A3B8;
            transition: var(--transition-base);
        }

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

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer {
                padding: 32px 0 16px;
            }
        }

        /* ========== 其他 ========== */
        .focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .see-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            background: transparent;
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            transition: var(--transition-base);
        }

        .see-more-btn:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(30, 142, 62, 0.25);
        }