/* roulang page: index */
:root {
            --color-pitch: #0B4F2A;
            --color-pitch-dark: #083F21;
            --color-pitch-deeper: #062F18;
            --color-charcoal: #111713;
            --color-accent: #B8E62E;
            --color-warmbg: #F5F7F3;
            --color-bordergray: #DFE6DD;
            --color-textsecondary: #5B6B5E;
            --shadow-card: 0 2px 8px rgba(15, 42, 24, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(15, 42, 24, 0.12);
            --transition-base: 200ms ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
            background-color: var(--color-warmbg);
            color: var(--color-charcoal);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid rgba(11, 79, 42, 0.5);
            outline-offset: 2px;
        }

        /* 侧栏导航 */
        .app-sidebar {
            background-color: var(--color-charcoal);
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 260px;
            z-index: 50;
            display: flex;
            flex-direction: column;
            padding: 24px 16px;
            transition: transform 200ms ease, opacity 200ms ease;
        }

        .app-sidebar .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.72);
            font-size: 15px;
            font-weight: 500;
            transition: background-color var(--transition-base), color var(--transition-base);
            position: relative;
            border-left: 3px solid transparent;
        }

        .app-sidebar .nav-item:hover {
            background-color: rgba(255, 255, 255, 0.07);
            color: #ffffff;
        }

        .app-sidebar .nav-item.active {
            color: #ffffff;
            border-left-color: var(--color-accent);
            background-color: rgba(255, 255, 255, 0.05);
        }

        .app-sidebar .nav-item .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .sidebar-footer-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 16px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            transition: background-color var(--transition-base), color var(--transition-base);
        }

        .sidebar-footer-link:hover {
            background-color: rgba(255, 255, 255, 0.07);
            color: #ffffff;
        }

        /* 移动端抽屉 */
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 280px;
            max-width: 85vw;
            background-color: var(--color-charcoal);
            z-index: 100;
            transform: translateX(-100%);
            transition: transform 280ms ease;
            display: flex;
            flex-direction: column;
            padding: 20px 16px;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 90;
            opacity: 0;
            pointer-events: none;
            transition: opacity 200ms ease;
        }

        .drawer-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        /* 主内容区 */
        .main-content {
            margin-left: 260px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        @media (max-width: 1024px) {
            .app-sidebar {
                transform: translateX(-100%);
                opacity: 0;
                pointer-events: none;
            }

            .main-content {
                margin-left: 0;
            }

            .mobile-topbar {
                display: flex;
            }
        }

        @media (min-width: 1025px) {
            .mobile-topbar {
                display: none;
            }
        }

        /* 卡片 */
        .card-base {
            background-color: #ffffff;
            border: 1px solid var(--color-bordergray);
            border-radius: var(--border-radius-card, 12px);
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
        }

        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(11, 79, 42, 0.25);
        }

        /* 按钮 */
        .btn-primary {
            background-color: var(--color-pitch);
            color: #ffffff;
            border-radius: var(--border-radius-btn, 8px);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background-color: var(--color-pitch-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(11, 79, 42, 0.25);
        }

        .btn-primary:active {
            background-color: var(--color-pitch-deeper);
            transform: translateY(0);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--color-pitch);
            border: 1px solid var(--color-pitch);
            border-radius: var(--border-radius-btn, 8px);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            cursor: pointer;
        }

        .btn-secondary:hover {
            background-color: rgba(11, 79, 42, 0.06);
            border-color: var(--color-pitch);
        }

        .btn-secondary:active {
            background-color: rgba(11, 79, 42, 0.12);
        }

        /* 徽章 */
        .badge-pill {
            display: inline-flex;
            align-items: center;
            border-radius: 999px;
            padding: 4px 14px;
            font-size: 13px;
            font-weight: 500;
            background-color: rgba(11, 79, 42, 0.06);
            color: var(--color-pitch);
            border: 1px solid rgba(11, 79, 42, 0.15);
            transition: background-color var(--transition-base), border-color var(--transition-base);
        }

        .badge-accent {
            background-color: var(--color-accent);
            color: var(--color-pitch);
            border: none;
            font-weight: 700;
            padding: 4px 14px;
        }

        /* 数据数字 */
        .data-number {
            font-family: "DIN Alternate", "Roboto Condensed", system-ui, sans-serif;
            font-weight: 700;
            letter-spacing: -0.02em;
        }

        /* 倒计时条 */
        .countdown-bar {
            background-color: rgba(17, 23, 19, 0.75);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(184, 230, 46, 0.3);
            border-radius: 8px;
            padding: 12px 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            color: #ffffff;
        }

        .countdown-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 52px;
        }

        .countdown-value {
            font-family: "DIN Alternate", "Roboto Condensed", system-ui, sans-serif;
            font-size: 28px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1.1;
        }

        .countdown-label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.05em;
        }

        /* 积分榜预览表格 */
        .standings-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }

        .standings-table th {
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
            font-size: 13px;
            color: var(--color-textsecondary);
            border-bottom: 1px solid var(--color-bordergray);
        }

        .standings-table td {
            padding: 12px 16px;
            border-bottom: 1px solid #F0F2EF;
            color: var(--color-charcoal);
        }

        .standings-table tr:hover td {
            background-color: #FAFBF9;
        }

        /* 时间轴 */
        .timeline-item {
            position: relative;
            padding-left: 32px;
            padding-bottom: 24px;
            border-left: 2px solid var(--color-bordergray);
            margin-left: 8px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -7px;
            top: 4px;
            width: 12px;
            height: 12px;
            background-color: var(--color-pitch);
            border-radius: 50%;
            box-shadow: 0 0 0 3px rgba(11, 79, 42, 0.15);
        }

        .timeline-item:last-child {
            border-left-color: transparent;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-bordergray);
            border-radius: 10px;
            background-color: #ffffff;
            transition: border-color var(--transition-base);
            overflow: hidden;
        }

        .faq-item:hover {
            border-color: rgba(11, 79, 42, 0.3);
        }

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

        .faq-question:hover {
            background-color: #FAFBF9;
        }

        .faq-question .faq-icon {
            transition: transform 200ms ease;
            flex-shrink: 0;
            margin-left: 12px;
            font-size: 14px;
            color: var(--color-textsecondary);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 200ms ease, padding 200ms ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

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

        /* 板块交替背景 */
        .section-dark {
            background-color: var(--color-charcoal);
            color: #ffffff;
        }

        .section-dark .card-base {
            background-color: #1A211C;
            border-color: #2A332C;
            color: #ffffff;
        }

        /* 图片遮罩 */
        .img-overlay {
            position: relative;
            overflow: hidden;
            border-radius: 10px;
        }

        .img-overlay::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.05) 50%, rgba(0, 0, 0, 0) 100%);
            border-radius: 10px;
            pointer-events: none;
        }

        .img-overlay img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 10px;
        }

        /* 版块间距 */
        .section-space {
            padding-top: 64px;
            padding-bottom: 64px;
        }

        @media (max-width: 768px) {
            .section-space {
                padding-top: 40px;
                padding-bottom: 40px;
            }
        }

        /* 移动端顶部栏 */
        .mobile-topbar {
            position: sticky;
            top: 0;
            z-index: 60;
            background-color: var(--color-charcoal);
            padding: 12px 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
        }

        /* 表格滚动容器 */
        .table-scroll {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        /* 卡片图片固定高度 */
        .card-img-h {
            height: 180px;
        }

        @media (max-width: 768px) {
            .card-img-h {
                height: 160px;
            }
        }

        /* 无障碍卡片 hover 保持 */
        .card-link:focus-visible {
            outline: 2px solid rgba(11, 79, 42, 0.5);
            outline-offset: 3px;
        }

/* roulang page: category3 */
:root {
            --color-pitch: #0B4F2A;
            --color-pitch-dark: #083F21;
            --color-pitch-deeper: #062F18;
            --color-charcoal: #111713;
            --color-accent: #B8E62E;
            --color-warmbg: #F5F7F3;
            --color-bordergray: #DFE6DD;
            --color-textsecondary: #5B6B5E;
            --shadow-card: 0 2px 8px rgba(15, 42, 24, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(15, 42, 24, 0.12);
            --transition-base: 200ms ease;
            --border-radius-card: 12px;
            --border-radius-btn: 8px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
            background-color: var(--color-warmbg);
            color: var(--color-charcoal);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid rgba(11, 79, 42, 0.5);
            outline-offset: 2px;
        }
        .app-sidebar .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.72);
            font-size: 15px;
            font-weight: 500;
            transition: background-color var(--transition-base), color var(--transition-base);
            position: relative;
            border-left: 3px solid transparent;
        }
        .app-sidebar .nav-item:hover {
            background-color: rgba(255, 255, 255, 0.07);
            color: #ffffff;
        }
        .app-sidebar .nav-item.active {
            color: #ffffff;
            border-left-color: var(--color-accent);
            background-color: rgba(255, 255, 255, 0.05);
        }
        .app-sidebar .nav-item .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 15px;
            flex-shrink: 0;
        }
        .sidebar-footer-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 16px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            transition: background-color var(--transition-base), color var(--transition-base);
        }
        .sidebar-footer-link:hover {
            background-color: rgba(255, 255, 255, 0.07);
            color: #ffffff;
        }
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 280px;
            max-width: 85vw;
            background-color: var(--color-charcoal);
            z-index: 100;
            transform: translateX(-100%);
            transition: transform 280ms ease;
            display: flex;
            flex-direction: column;
            padding: 20px 16px;
            overflow-y: auto;
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 90;
            opacity: 0;
            pointer-events: none;
            transition: opacity 200ms ease;
        }
        .drawer-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }
        .main-content {
            margin-left: 260px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .mobile-topbar {
            display: none;
        }
        .card-base {
            background-color: #ffffff;
            border: 1px solid var(--color-bordergray);
            border-radius: var(--border-radius-card);
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
        }
        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(11, 79, 42, 0.25);
        }
        .btn-primary {
            background-color: var(--color-pitch);
            color: #ffffff;
            border-radius: var(--border-radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background-color: var(--color-pitch-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(11, 79, 42, 0.25);
        }
        .btn-primary:active {
            background-color: var(--color-pitch-deeper);
            transform: translateY(0);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--color-pitch);
            border: 1px solid var(--color-pitch);
            border-radius: var(--border-radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            cursor: pointer;
        }
        .btn-secondary:hover {
            background-color: rgba(11, 79, 42, 0.06);
            border-color: var(--color-pitch);
        }
        .btn-secondary:active {
            background-color: rgba(11, 79, 42, 0.12);
        }
        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            line-height: 1.5;
        }
        .badge-accent {
            background-color: var(--color-accent);
            color: var(--color-pitch);
        }
        .badge-outline {
            border: 1px solid var(--color-bordergray);
            color: var(--color-textsecondary);
        }
        .section-title {
            font-size: 28px;
            line-height: 1.3;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--color-charcoal);
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--color-textsecondary);
            line-height: 1.7;
        }
        .topic-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 20px;
            border-bottom: 1px solid var(--color-bordergray);
            transition: background-color var(--transition-base);
        }
        .topic-item:hover {
            background-color: rgba(245, 247, 243, 0.8);
        }
        .topic-item:last-child {
            border-bottom: none;
        }
        .stat-number {
            font-family: "DIN Alternate", "Roboto Condensed", system-ui, sans-serif;
            font-weight: 700;
            font-size: 36px;
            line-height: 1.2;
            color: var(--color-pitch);
        }
        .sidebar-footer-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 16px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            transition: background-color var(--transition-base), color var(--transition-base);
        }
        .sidebar-footer-link:hover {
            background-color: rgba(255, 255, 255, 0.07);
            color: #ffffff;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-bordergray);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 0;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-charcoal);
            text-align: left;
            transition: color var(--transition-base);
        }
        .faq-question:hover {
            color: var(--color-pitch);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 200ms ease;
            color: var(--color-textsecondary);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }
        .faq-question i {
            transition: transform 200ms ease;
            color: var(--color-textsecondary);
            flex-shrink: 0;
        }
        .breadcrumb-link {
            font-size: 13px;
            color: var(--color-textsecondary);
            transition: color var(--transition-base);
        }
        .breadcrumb-link:hover {
            color: var(--color-pitch);
        }
        @media (max-width: 1023px) {
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
                position: sticky;
                top: 0;
                z-index: 80;
                background-color: var(--color-charcoal);
                align-items: center;
                justify-content: space-between;
                padding: 12px 16px;
                color: #ffffff;
            }
        }
        @media (min-width: 1024px) {
            .main-content {
                margin-left: 260px;
            }
        }
        @media (max-width: 640px) {
            .section-title {
                font-size: 24px;
            }
            .stat-number {
                font-size: 28px;
            }
        }

/* roulang page: category1 */
:root {
            --color-pitch: #0B4F2A;
            --color-pitch-dark: #083F21;
            --color-pitch-deeper: #062F18;
            --color-charcoal: #111713;
            --color-accent: #B8E62E;
            --color-warmbg: #F5F7F3;
            --color-bordergray: #DFE6DD;
            --color-textsecondary: #5B6B5E;
            --shadow-card: 0 2px 8px rgba(15, 42, 24, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(15, 42, 24, 0.12);
            --transition-base: 200ms ease;
            --border-radius-card: 12px;
            --border-radius-btn: 8px;
        }

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

        body {
            font-family: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, sans-serif;
            background-color: var(--color-warmbg);
            color: var(--color-charcoal);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid rgba(11, 79, 42, 0.5);
            outline-offset: 2px;
        }

        .app-sidebar .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.72);
            font-size: 15px;
            font-weight: 500;
            transition: background-color var(--transition-base), color var(--transition-base);
            position: relative;
            border-left: 3px solid transparent;
            line-height: 1.4;
        }

        .app-sidebar .nav-item:hover {
            background-color: rgba(255, 255, 255, 0.07);
            color: #ffffff;
        }

        .app-sidebar .nav-item.active {
            color: #ffffff;
            border-left-color: var(--color-accent);
            background-color: rgba(255, 255, 255, 0.05);
        }

        .app-sidebar .nav-item .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .sidebar-footer-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 16px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            transition: background-color var(--transition-base), color var(--transition-base);
        }

        .sidebar-footer-link:hover {
            background-color: rgba(255, 255, 255, 0.07);
            color: #ffffff;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 280px;
            max-width: 85vw;
            background-color: var(--color-charcoal);
            z-index: 100;
            transform: translateX(-100%);
            transition: transform 280ms ease;
            display: flex;
            flex-direction: column;
            padding: 20px 16px;
            overflow-y: auto;
            box-shadow: 4px 0 24px rgba(0, 0, 0, 0.25);
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 90;
            opacity: 0;
            pointer-events: none;
            transition: opacity 200ms ease;
        }

        .drawer-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        .card-base {
            background-color: #ffffff;
            border: 1px solid var(--color-bordergray);
            border-radius: var(--border-radius-card);
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
        }

        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(11, 79, 42, 0.25);
        }

        .btn-primary {
            background-color: var(--color-pitch);
            color: #ffffff;
            border-radius: var(--border-radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background-color: var(--color-pitch-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(11, 79, 42, 0.25);
        }

        .btn-primary:active {
            background-color: var(--color-pitch-deeper);
            transform: translateY(0);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--color-pitch);
            border: 1px solid var(--color-pitch);
            border-radius: var(--border-radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            cursor: pointer;
        }

        .btn-secondary:hover {
            background-color: rgba(11, 79, 42, 0.06);
            border-color: var(--color-pitch);
        }

        .btn-secondary:active {
            background-color: rgba(11, 79, 42, 0.12);
        }

        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            background-color: rgba(11, 79, 42, 0.08);
            color: var(--color-pitch);
            border: 1px solid rgba(11, 79, 42, 0.15);
            white-space: nowrap;
        }

        .badge-accent {
            background-color: var(--color-accent);
            color: var(--color-pitch-deeper);
            border: none;
        }

        .section-padding {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }

        @media (min-width: 1024px) {
            .section-padding {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }

        @media (min-width: 1280px) {
            .section-padding {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }

        .faq-item {
            border-bottom: 1px solid var(--color-bordergray);
            transition: background-color var(--transition-base);
        }

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

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

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 250ms ease, padding 250ms ease;
            font-size: 14px;
            color: var(--color-textsecondary);
            line-height: 1.8;
            padding: 0;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-bottom: 16px;
        }

        .faq-icon {
            font-size: 14px;
            color: var(--color-textsecondary);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

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

        .stat-number {
            font-family: 'DIN Alternate', 'Roboto Condensed', system-ui, sans-serif;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--color-pitch);
        }

        .news-list-item {
            transition: background-color var(--transition-base), border-color var(--transition-base);
            border: 1px solid var(--color-bordergray);
            border-radius: var(--border-radius-card);
            background-color: #ffffff;
            overflow: hidden;
        }

        .news-list-item:hover {
            border-color: rgba(11, 79, 42, 0.3);
            background-color: #fafbf9;
        }

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

/* roulang page: category2 */
:root {
            --color-pitch: #0B4F2A;
            --color-pitch-dark: #083F21;
            --color-pitch-deeper: #062F18;
            --color-charcoal: #111713;
            --color-accent: #B8E62E;
            --color-warmbg: #F5F7F3;
            --color-bordergray: #DFE6DD;
            --color-textsecondary: #5B6B5E;
            --shadow-card: 0 2px 8px rgba(15, 42, 24, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(15, 42, 24, 0.12);
            --transition-base: 200ms ease;
            --border-radius-card: 12px;
            --border-radius-btn: 8px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
            background-color: var(--color-warmbg);
            color: var(--color-charcoal);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid rgba(11, 79, 42, 0.5);
            outline-offset: 2px;
        }

        /* 左侧导航栏 */
        .app-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 260px;
            background-color: var(--color-charcoal);
            z-index: 50;
            display: flex;
            flex-direction: column;
            padding: 24px 16px;
            overflow-y: auto;
        }

        .app-sidebar .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.72);
            font-size: 15px;
            font-weight: 500;
            transition: background-color var(--transition-base), color var(--transition-base);
            position: relative;
            border-left: 3px solid transparent;
        }

        .app-sidebar .nav-item:hover {
            background-color: rgba(255, 255, 255, 0.07);
            color: #ffffff;
        }

        .app-sidebar .nav-item.active {
            color: #ffffff;
            border-left-color: var(--color-accent);
            background-color: rgba(255, 255, 255, 0.05);
        }

        .app-sidebar .nav-item .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .sidebar-footer-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 16px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            transition: background-color var(--transition-base), color var(--transition-base);
        }

        .sidebar-footer-link:hover {
            background-color: rgba(255, 255, 255, 0.07);
            color: #ffffff;
        }

        /* 移动端抽屉 */
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 280px;
            max-width: 85vw;
            background-color: var(--color-charcoal);
            z-index: 100;
            transform: translateX(-100%);
            transition: transform 280ms ease;
            display: flex;
            flex-direction: column;
            padding: 20px 16px;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 90;
            opacity: 0;
            pointer-events: none;
            transition: opacity 200ms ease;
        }

        .drawer-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        /* 主内容区 */
        .main-content {
            margin-left: 260px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .mobile-topbar {
            display: none;
        }

        /* 响应式断点 */
        @media (max-width: 1023px) {
            .app-sidebar {
                display: none;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
        }

        /* 卡片 */
        .card-base {
            background-color: #ffffff;
            border: 1px solid var(--color-bordergray);
            border-radius: var(--border-radius-card);
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
        }

        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(11, 79, 42, 0.25);
        }

        /* 按钮 */
        .btn-primary {
            background-color: var(--color-pitch);
            color: #ffffff;
            border-radius: var(--border-radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background-color: var(--color-pitch-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(11, 79, 42, 0.25);
        }

        .btn-primary:active {
            background-color: var(--color-pitch-deeper);
            transform: translateY(0);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--color-pitch);
            border: 1px solid var(--color-pitch);
            border-radius: var(--border-radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            cursor: pointer;
        }

        .btn-secondary:hover {
            background-color: rgba(11, 79, 42, 0.06);
            border-color: var(--color-pitch);
        }

        .btn-secondary:active {
            background-color: rgba(11, 79, 42, 0.12);
        }

        /* 徽章 */
        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background-color: rgba(11, 79, 42, 0.07);
            color: var(--color-pitch);
            letter-spacing: 0.01em;
        }

        .badge-accent {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            background-color: var(--color-accent);
            color: var(--color-pitch-deeper);
            letter-spacing: 0.01em;
        }

        /* 表格 */
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }

        .data-table thead {
            background-color: rgba(11, 79, 42, 0.05);
        }

        .data-table thead th {
            text-align: left;
            padding: 12px 16px;
            font-weight: 700;
            font-size: 13px;
            color: var(--color-textsecondary);
            border-bottom: 1px solid var(--color-bordergray);
            white-space: nowrap;
        }

        .data-table tbody td {
            padding: 12px 16px;
            border-bottom: 1px solid #EDF2EB;
            color: var(--color-charcoal);
            white-space: nowrap;
        }

        .data-table tbody tr:hover {
            background-color: rgba(11, 79, 42, 0.03);
        }

        .data-table .rank-highlight {
            font-weight: 800;
            color: var(--color-pitch);
        }

        .data-table .accent-num {
            font-weight: 700;
            color: var(--color-pitch);
        }

        /* FAQ 手风琴 */
        .faq-item {
            border-bottom: 1px solid var(--color-bordergray);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 4px;
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-charcoal);
            transition: color var(--transition-base);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--color-textsecondary);
            transition: transform var(--transition-base);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 200ms ease, padding 200ms ease;
            padding: 0 4px;
            font-size: 14px;
            color: var(--color-textsecondary);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 320px;
            padding-bottom: 16px;
        }

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

        /* 输入框 */
        .form-input {
            width: 100%;
            border-radius: 6px;
            border: 1px solid var(--color-bordergray);
            padding: 12px 16px;
            font-size: 15px;
            background-color: #ffffff;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .form-input:focus {
            outline: none;
            border-color: var(--color-pitch);
            box-shadow: 0 0 0 3px rgba(11, 79, 42, 0.08);
        }

        /* 深色区块 */
        .section-dark {
            background-color: var(--color-charcoal);
            color: rgba(255, 255, 255, 0.82);
        }

        .section-dark .section-title {
            color: #ffffff;
        }

        /* 辅助文字 */
        .text-secondary {
            color: var(--color-textsecondary);
        }

        /* hover 上浮 */
        .hover-lift {
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .hover-lift:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(11, 79, 42, 0.25);
        }

        /* 数据数字 */
        .data-num {
            font-family: "DIN Alternate", "Roboto Condensed", system-ui, sans-serif;
            font-weight: 800;
            letter-spacing: -0.01em;
        }

        /* 滚动条 */
        .app-sidebar::-webkit-scrollbar,
        .mobile-drawer::-webkit-scrollbar {
            width: 4px;
        }

        .app-sidebar::-webkit-scrollbar-thumb,
        .mobile-drawer::-webkit-scrollbar-thumb {
            background-color: rgba(255, 255, 255, 0.15);
            border-radius: 4px;
        }

        .mobile-topbar {
            position: sticky;
            top: 0;
            z-index: 60;
            background-color: var(--color-charcoal);
            padding: 14px 16px;
            display: none;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        @media (max-width: 1023px) {
            .mobile-topbar {
                display: flex;
            }
        }

/* roulang page: category4 */
:root {
            --color-pitch: #0B4F2A;
            --color-pitch-dark: #083F21;
            --color-pitch-deeper: #062F18;
            --color-charcoal: #111713;
            --color-accent: #B8E62E;
            --color-warmbg: #F5F7F3;
            --color-bordergray: #DFE6DD;
            --color-textsecondary: #5B6B5E;
            --shadow-card: 0 2px 8px rgba(15, 42, 24, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(15, 42, 24, 0.12);
            --transition-base: 200ms ease;
            --border-radius-card: 12px;
            --border-radius-btn: 8px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
            background-color: var(--color-warmbg);
            color: var(--color-charcoal);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid rgba(11, 79, 42, 0.5);
            outline-offset: 2px;
        }

        .app-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 260px;
            background-color: var(--color-charcoal);
            z-index: 60;
            display: flex;
            flex-direction: column;
            padding: 24px 16px;
            overflow-y: auto;
            box-shadow: 2px 0 16px rgba(0, 0, 0, 0.08);
        }

        .app-sidebar .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.72);
            font-size: 15px;
            font-weight: 500;
            transition: background-color var(--transition-base), color var(--transition-base);
            position: relative;
            border-left: 3px solid transparent;
        }

        .app-sidebar .nav-item:hover {
            background-color: rgba(255, 255, 255, 0.07);
            color: #ffffff;
        }

        .app-sidebar .nav-item.active {
            color: #ffffff;
            border-left-color: var(--color-accent);
            background-color: rgba(255, 255, 255, 0.05);
        }

        .app-sidebar .nav-item .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .sidebar-footer-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 16px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            transition: background-color var(--transition-base), color var(--transition-base);
        }

        .sidebar-footer-link:hover {
            background-color: rgba(255, 255, 255, 0.07);
            color: #ffffff;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 280px;
            max-width: 85vw;
            background-color: var(--color-charcoal);
            z-index: 100;
            transform: translateX(-100%);
            transition: transform 280ms ease;
            display: flex;
            flex-direction: column;
            padding: 20px 16px;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 90;
            opacity: 0;
            pointer-events: none;
            transition: opacity 200ms ease;
        }

        .drawer-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 80;
            background-color: var(--color-charcoal);
            padding: 12px 20px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
        }

        .main-content {
            margin-left: 260px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .card-base {
            background-color: #ffffff;
            border: 1px solid var(--color-bordergray);
            border-radius: var(--border-radius-card);
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
        }

        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(11, 79, 42, 0.25);
        }

        .btn-primary {
            background-color: var(--color-pitch);
            color: #ffffff;
            border-radius: var(--border-radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background-color: var(--color-pitch-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(11, 79, 42, 0.25);
        }

        .btn-primary:active {
            background-color: var(--color-pitch-deeper);
            transform: translateY(0);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--color-pitch);
            border: 1px solid var(--color-pitch);
            border-radius: var(--border-radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            cursor: pointer;
        }

        .btn-secondary:hover {
            background-color: rgba(11, 79, 42, 0.06);
            border-color: var(--color-pitch);
        }

        .btn-secondary:active {
            background-color: rgba(11, 79, 42, 0.12);
        }

        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.6;
            letter-spacing: 0.01em;
        }

        .badge-accent {
            background-color: var(--color-accent);
            color: #0B4F2A;
        }

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

        .badge-outline-green {
            background-color: rgba(11, 79, 42, 0.06);
            color: var(--color-pitch);
            border: 1px solid rgba(11, 79, 42, 0.2);
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.3;
            color: var(--color-charcoal);
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--color-textsecondary);
            line-height: 1.8;
            max-width: 680px;
        }

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

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

        .faq-item {
            border-bottom: 1px solid var(--color-bordergray);
            padding: 18px 0;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: var(--color-charcoal);
            transition: color var(--transition-base);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: rgba(11, 79, 42, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--color-pitch);
            transition: transform var(--transition-base);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 200ms ease, padding-top 200ms ease;
            font-size: 14px;
            color: var(--color-textsecondary);
            line-height: 1.85;
            padding-top: 0;
        }

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

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

        .stat-num {
            font-family: "DIN Alternate", "Roboto Condensed", system-ui, sans-serif;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--color-pitch);
        }

        .team-card {
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
        }

        .team-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(11, 79, 42, 0.25);
        }

        .news-list-item {
            transition: background-color var(--transition-base), border-color var(--transition-base);
        }

        .news-list-item:hover {
            background-color: #FAFCF9;
            border-color: rgba(11, 79, 42, 0.2);
        }

        .form-input {
            border: 1px solid var(--color-bordergray);
            border-radius: 6px;
            padding: 12px 16px;
            font-size: 15px;
            background-color: #ffffff;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            width: 100%;
            color: var(--color-charcoal);
        }

        .form-input:focus {
            outline: none;
            border-color: var(--color-pitch);
            box-shadow: 0 0 0 3px rgba(11, 79, 42, 0.08);
        }

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

        @media (max-width: 1024px) {
            .app-sidebar {
                display: none;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                margin-left: 0;
            }
            .section-title {
                font-size: 24px;
            }
        }

        @media (max-width: 640px) {
            .section-title {
                font-size: 22px;
            }
            .main-content {
                padding: 0;
            }
            .stat-num {
                font-size: 24px !important;
            }
        }

/* roulang page: category5 */
:root {
            --color-pitch: #0B4F2A;
            --color-pitch-dark: #083F21;
            --color-pitch-deeper: #062F18;
            --color-charcoal: #111713;
            --color-accent: #B8E62E;
            --color-warmbg: #F5F7F3;
            --color-bordergray: #DFE6DD;
            --color-textsecondary: #5B6B5E;
            --shadow-card: 0 2px 8px rgba(15, 42, 24, 0.06);
            --shadow-card-hover: 0 8px 24px rgba(15, 42, 24, 0.12);
            --transition-base: 200ms ease;
            --border-radius-card: 12px;
            --border-radius-btn: 8px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
            background-color: var(--color-warmbg);
            color: var(--color-charcoal);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid rgba(11, 79, 42, 0.5);
            outline-offset: 2px;
        }

        .app-sidebar {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: 260px;
            background-color: var(--color-charcoal);
            z-index: 50;
            display: flex;
            flex-direction: column;
            padding: 20px 16px;
            overflow-y: auto;
        }

        .app-sidebar .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.72);
            font-size: 15px;
            font-weight: 500;
            transition: background-color var(--transition-base), color var(--transition-base);
            position: relative;
            border-left: 3px solid transparent;
        }

        .app-sidebar .nav-item:hover {
            background-color: rgba(255, 255, 255, 0.07);
            color: #ffffff;
        }

        .app-sidebar .nav-item.active {
            color: #ffffff;
            border-left-color: var(--color-accent);
            background-color: rgba(255, 255, 255, 0.05);
        }

        .app-sidebar .nav-item .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .sidebar-footer-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 16px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            transition: background-color var(--transition-base), color var(--transition-base);
        }

        .sidebar-footer-link:hover {
            background-color: rgba(255, 255, 255, 0.07);
            color: #ffffff;
        }

        .main-content {
            margin-left: 260px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .mobile-topbar {
            display: none;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 280px;
            max-width: 85vw;
            background-color: var(--color-charcoal);
            z-index: 100;
            transform: translateX(-100%);
            transition: transform 280ms ease;
            display: flex;
            flex-direction: column;
            padding: 20px 16px;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 90;
            opacity: 0;
            pointer-events: none;
            transition: opacity 200ms ease;
        }

        .drawer-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        .card-base {
            background-color: #ffffff;
            border: 1px solid var(--color-bordergray);
            border-radius: var(--border-radius-card, 12px);
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
        }

        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(11, 79, 42, 0.25);
        }

        .btn-primary {
            background-color: var(--color-pitch);
            color: #ffffff;
            border-radius: var(--border-radius-btn, 8px);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background-color: var(--color-pitch-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(11, 79, 42, 0.25);
        }

        .btn-primary:active {
            background-color: var(--color-pitch-deeper);
            transform: translateY(0);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--color-pitch);
            border: 1px solid var(--color-pitch);
            border-radius: var(--border-radius-btn, 8px);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            cursor: pointer;
        }

        .btn-secondary:hover {
            background-color: rgba(11, 79, 42, 0.06);
            border-color: var(--color-pitch);
        }

        .btn-secondary:active {
            background-color: rgba(11, 79, 42, 0.12);
        }

        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            border-radius: 999px;
            padding: 4px 14px;
            font-size: 13px;
            font-weight: 500;
            line-height: 1.5;
        }

        .badge-green {
            background-color: rgba(11, 79, 42, 0.08);
            color: var(--color-pitch);
        }

        .badge-accent {
            background-color: var(--color-accent);
            color: var(--color-pitch-dark);
            font-weight: 600;
        }

        .breadcrumb-link {
            color: var(--color-textsecondary);
            font-size: 13px;
            transition: color var(--transition-base);
        }

        .breadcrumb-link:hover {
            color: var(--color-pitch);
        }

        .faq-item {
            border: 1px solid var(--color-bordergray);
            border-radius: 10px;
            background: #ffffff;
            overflow: hidden;
            transition: border-color var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(11, 79, 42, 0.3);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: var(--color-charcoal);
            text-align: left;
            gap: 12px;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-base);
            color: var(--color-pitch);
            font-size: 14px;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 200ms ease, padding 200ms ease;
            padding: 0 20px;
            color: var(--color-textsecondary);
            font-size: 14px;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .form-input {
            width: 100%;
            border: 1px solid var(--color-bordergray);
            border-radius: 6px;
            padding: 12px 16px;
            font-size: 14px;
            background: #ffffff;
            color: var(--color-charcoal);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .form-input:focus {
            border-color: var(--color-pitch);
            box-shadow: 0 0 0 4px rgba(11, 79, 42, 0.08);
            outline: none;
        }

        .stat-number {
            font-family: "DIN Alternate", "Roboto Condensed", system-ui, sans-serif;
            font-weight: 700;
            letter-spacing: -0.02em;
        }

        @media (max-width: 1023px) {
            .app-sidebar {
                display: none;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
                align-items: center;
                justify-content: space-between;
                background-color: var(--color-charcoal);
                padding: 12px 16px;
                position: sticky;
                top: 0;
                z-index: 60;
            }
        }

        @media (min-width: 1024px) {
            .mobile-drawer,
            .drawer-overlay {
                display: none;
            }
        }