/* roulang page: index */
:root {
            --color-brand: #7c3aed;
            --color-brand-dark: #5b21b6;
            --color-accent: #f59e0b;
            --color-accent-dark: #d97706;
            --color-deep: #1e1b35;
            --color-surface: #ffffff;
            --color-bg: #f8f7fc;
            --color-text: #1f2937;
            --color-text-muted: #6b7280;
            --color-border: #e5e7eb;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.10), 0 4px 8px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.07);
            --sidebar-width: 260px;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--color-brand);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }

        /* 侧边栏导航 */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: linear-gradient(180deg, #1e1b35 0%, #2a2348 40%, #1e1b35 100%);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.18);
            transition: transform var(--transition-smooth);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-nav::-webkit-scrollbar {
            width: 3px;
        }
        .sidebar-nav::-webkit-scrollbar-track {
            background: transparent;
        }
        .sidebar-nav::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 10px;
        }

        .sidebar-logo {
            padding: 1.5rem 1.25rem 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }
        .sidebar-logo .logo-text {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .sidebar-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #7c3aed, #a78bfa);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #fff;
            flex-shrink: 0;
        }
        .sidebar-logo .logo-sub {
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 0.08em;
            margin-top: 0.15rem;
            padding-left: 0.3rem;
        }

        .sidebar-nav-list {
            list-style: none;
            margin: 0;
            padding: 1rem 0;
            flex: 1;
        }
        .sidebar-nav-list li {
            margin: 0.15rem 0.75rem;
        }
        .sidebar-nav-list li a {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            padding: 0.7rem 1rem;
            border-radius: 0.6rem;
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.02em;
        }
        .sidebar-nav-list li a:hover {
            background: rgba(255, 255, 255, 0.07);
            color: #ffffff;
            transform: translateX(2px);
        }
        .sidebar-nav-list li a.active {
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.55), rgba(124, 58, 237, 0.25));
            color: #ffffff;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(124, 58, 237, 0.3);
        }
        .sidebar-nav-list li a.active::before {
            content: '';
            position: absolute;
            left: -0.75rem;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: #f59e0b;
            border-radius: 0 4px 4px 0;
        }
        .sidebar-nav-list li a .nav-icon {
            width: 22px;
            text-align: center;
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .sidebar-footer {
            padding: 1rem 1.25rem 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }
        .sidebar-footer .side-cta {
            display: block;
            text-align: center;
            padding: 0.65rem 1rem;
            border-radius: 0.6rem;
            background: linear-gradient(135deg, #f59e0b, #fbbf24);
            color: #1e1b35;
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
        }
        .sidebar-footer .side-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.45);
            background: linear-gradient(135deg, #fbbf24, #fcd34d);
        }

        /* 主内容区 */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            transition: margin-left var(--transition-smooth);
        }

        /* 移动端顶部导航 */
        .mobile-header {
            display: none;
            position: sticky;
            top: 0;
            z-index: 999;
            background: #1e1b35;
            padding: 0.75rem 1rem;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
        }
        .mobile-header .m-logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .mobile-header .m-logo .logo-icon-sm {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, #7c3aed, #a78bfa);
            border-radius: 7px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: #fff;
        }
        .menu-toggle {
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 0.4rem;
            cursor: pointer;
            transition: color var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .menu-toggle:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }

        /* 移动端遮罩 */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 999;
            transition: opacity var(--transition-smooth);
            opacity: 0;
            pointer-events: none;
        }
        .sidebar-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        /* 板块通用 */
        .section-block {
            padding: 3.5rem 2rem;
        }
        .section-block-sm {
            padding: 2.5rem 2rem;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: #1e1b35;
            margin-bottom: 0.6rem;
            letter-spacing: 0.03em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: #6b7280;
            margin-bottom: 2rem;
            letter-spacing: 0.02em;
        }
        .section-divider {
            width: 56px;
            height: 4px;
            background: linear-gradient(90deg, #7c3aed, #a78bfa);
            border-radius: 2px;
            margin-bottom: 1.5rem;
        }

        /* 卡片 */
        .card-hover {
            transition: all var(--transition-fast);
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-xl);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid #e5e7eb;
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
            background: #fff;
        }
        .faq-item:hover {
            border-color: #c4b5fd;
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 1.1rem 1.4rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            color: #1e1b35;
            font-size: 1rem;
            user-select: none;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: #7c3aed;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 1.4rem;
            color: #4b5563;
            font-size: 0.95rem;
            line-height: 1.75;
            background: #faf9ff;
            border-top: 0 solid transparent;
            transition: max-height 0.4s ease, padding 0.4s ease, border-top 0.1s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 1rem 1.4rem 1.2rem;
            border-top: 1px solid #e5e7eb;
        }
        .faq-item.open .faq-question {
            color: #7c3aed;
        }
        .faq-toggle-icon {
            transition: transform 0.35s ease;
            font-size: 0.85rem;
            color: #9ca3af;
            flex-shrink: 0;
        }
        .faq-item.open .faq-toggle-icon {
            transform: rotate(180deg);
            color: #7c3aed;
        }

        /* 新闻卡片 */
        .news-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            border: 1px solid #f3f4f6;
        }
        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: #e5e7eb;
        }
        .news-card-img {
            height: 180px;
            object-fit: cover;
            width: 100%;
        }
        .news-card-body {
            padding: 1.2rem 1.3rem;
        }
        .news-date {
            font-size: 0.8rem;
            color: #9ca3af;
            letter-spacing: 0.04em;
        }
        .news-title {
            font-weight: 700;
            font-size: 1.05rem;
            color: #1e1b35;
            margin: 0.4rem 0;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-excerpt {
            font-size: 0.88rem;
            color: #6b7280;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            :root {
                --sidebar-width: 220px;
            }
            .section-block {
                padding: 2.5rem 1.5rem;
            }
            .section-block-sm {
                padding: 2rem 1.5rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .sidebar-nav {
                transform: translateX(-100%);
                width: 280px;
                box-shadow: 4px 0 30px rgba(0, 0, 0, 0.35);
            }
            .sidebar-nav.mobile-open {
                transform: translateX(0);
            }
            .sidebar-overlay {
                display: block;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .section-block {
                padding: 2rem 1rem;
            }
            .section-block-sm {
                padding: 1.5rem 1rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
            }
            .news-card-img {
                height: 150px;
            }
        }

        @media (max-width: 520px) {
            .sidebar-nav {
                width: 260px;
            }
            .section-block {
                padding: 1.5rem 0.75rem;
            }
            .section-block-sm {
                padding: 1.2rem 0.75rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .news-card-img {
                height: 130px;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 0.9rem 1rem;
            }
            .faq-answer {
                font-size: 0.85rem;
            }
            .faq-item.open .faq-answer {
                padding: 0.8rem 1rem 1rem;
            }
        }

/* roulang page: category3 */
:root {
            --brand-600: #7d5c40;
            --brand-700: #5a3f2b;
            --accent-400: #e8b46a;
            --accent-500: #dba14a;
            --deep-900: #121018;
            --deep-950: #0c0a10;
            --warm-50: #fefaf5;
            --warm-100: #fdf2e8;
            --text-strong: #1c1815;
            --text-soft: #6b5f55;
            --text-muted: #9c8d80;
            --border-soft: #e5dcd3;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --nav-width: 250px;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.25, 0.8, 0.25, 1.2);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.7;
            background-color: #fefaf5;
            color: #1c1815;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        input,
        button {
            font-family: inherit;
        }

        .app-layout {
            display: flex;
            min-height: 100vh;
        }

        .desktop-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: linear-gradient(180deg, #16141d 0%, #0c0a10 100%);
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            box-shadow: 4px 0 32px rgba(0, 0, 0, 0.25);
        }

        .sidebar-logo {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }
        .sidebar-logo a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            transition: opacity var(--transition-base);
        }
        .sidebar-logo a:hover {
            opacity: 0.85;
        }
        .logo-icon-box {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, #7d5c40, #b08968);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(180, 130, 80, 0.35);
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .sidebar-nav .nav-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: rgba(255, 255, 255, 0.3);
            padding: 10px 14px 6px;
            font-weight: 600;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition-base);
            position: relative;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 0.85rem;
            opacity: 0.7;
            transition: all var(--transition-base);
        }
        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
        }
        .sidebar-nav a:hover i {
            opacity: 1;
            color: #e8b46a;
        }
        .sidebar-nav a.active {
            background: rgba(200, 160, 100, 0.15);
            color: #e8b46a;
            font-weight: 600;
            box-shadow: inset 3px 0 0 #e8b46a;
            border-radius: var(--radius-sm);
        }
        .sidebar-nav a.active i {
            opacity: 1;
            color: #e8b46a;
        }

        .sidebar-footer {
            padding: 14px 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
            display: flex;
            gap: 8px;
        }
        .sidebar-footer a {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.85rem;
            transition: all var(--transition-base);
        }
        .sidebar-footer a:hover {
            background: rgba(232, 180, 106, 0.2);
            color: #e8b46a;
            transform: translateY(-2px);
        }

        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .mobile-header {
            display: none;
            position: sticky;
            top: 0;
            z-index: 999;
            background: #16141d;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }
        .mobile-header .m-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1.05rem;
            color: #fff;
        }
        .mobile-header .m-logo .logo-icon-sm {
            width: 30px;
            height: 30px;
            border-radius: 6px;
            background: linear-gradient(135deg, #7d5c40, #b08968);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.8rem;
        }
        .menu-toggle {
            background: rgba(255, 255, 255, 0.08);
            border: none;
            color: #fff;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-base);
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.15);
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-smooth);
            pointer-events: none;
        }
        .mobile-nav-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 270px;
            height: 100%;
            background: #16141d;
            z-index: 999;
            transform: translateX(-100%);
            transition: transform var(--transition-smooth);
            flex-direction: column;
            overflow-y: auto;
            box-shadow: 4px 0 28px rgba(0, 0, 0, 0.4);
        }
        .mobile-nav-panel.open {
            transform: translateX(0);
        }
        .mobile-nav-panel .mp-close {
            align-self: flex-end;
            margin: 12px 14px;
            background: rgba(255, 255, 255, 0.08);
            border: none;
            color: #fff;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-base);
        }
        .mobile-nav-panel .mp-close:hover {
            background: rgba(255, 255, 255, 0.18);
        }
        .mobile-nav-panel .mp-links {
            padding: 8px 16px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .mobile-nav-panel .mp-links a {
            padding: 11px 14px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .mobile-nav-panel .mp-links a i {
            width: 18px;
            text-align: center;
            font-size: 0.8rem;
        }
        .mobile-nav-panel .mp-links a:hover {
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
        }
        .mobile-nav-panel .mp-links a.active {
            background: rgba(200, 160, 100, 0.18);
            color: #e8b46a;
            font-weight: 600;
            box-shadow: inset 3px 0 0 #e8b46a;
        }

        .section-block {
            padding: 56px 0;
        }
        .section-block-sm {
            padding: 36px 0;
        }
        .section-block-lg {
            padding: 72px 0;
        }

        .container-main {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .card-base {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-base);
            overflow: hidden;
        }
        .card-base:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: #d4c0a8;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            background: linear-gradient(135deg, #7d5c40, #9c7654);
            color: #fff;
            border: none;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(125, 92, 64, 0.3);
            text-decoration: none;
            letter-spacing: 0.01em;
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, #6b4d35, #8a6442);
            box-shadow: 0 6px 22px rgba(125, 92, 64, 0.4);
            transform: translateY(-1px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            background: transparent;
            color: #5a3f2b;
            border: 2px solid #bfa07e;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
        }
        .btn-outline:hover {
            background: #fdf2e8;
            border-color: #7d5c40;
            color: #3d2a18;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            background: linear-gradient(135deg, #e8b46a, #dba14a);
            color: #1c1108;
            border: none;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(219, 161, 74, 0.35);
            text-decoration: none;
        }
        .btn-accent:hover {
            background: linear-gradient(135deg, #f0c78e, #e8b46a);
            box-shadow: 0 6px 22px rgba(219, 161, 74, 0.5);
            transform: translateY(-2px);
        }

        .tag-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 500;
            letter-spacing: 0.02em;
        }
        .tag-hot {
            background: #fff0e6;
            color: #c45500;
        }
        .tag-new {
            background: #e8f5e9;
            color: #2e7d32;
        }
        .tag-featured {
            background: #f3e5f5;
            color: #6a1b9a;
        }
        .tag-live {
            background: #fce4ec;
            color: #c62828;
            animation: pulse-tag 2s infinite;
        }
        @keyframes pulse-tag {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.7;
            }
        }

        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, #7d5c40, #b08968);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.1;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-soft);
            padding: 18px 0;
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            color: #5a3f2b;
        }
        .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
            color: var(--text-soft);
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 10px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-icon {
            transition: transform var(--transition-smooth);
            font-size: 0.9rem;
            color: #bfa07e;
            flex-shrink: 0;
        }

        @media (max-width: 1024px) {
            .desktop-sidebar {
                display: none;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .mobile-nav-overlay {
                display: block;
            }
            .mobile-nav-panel {
                display: flex;
            }
            .container-main {
                padding: 0 18px;
            }
            .section-block {
                padding: 36px 0;
            }
            .section-block-lg {
                padding: 48px 0;
            }
            .stat-number {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .container-main {
                padding: 0 14px;
            }
            .section-block {
                padding: 28px 0;
            }
            .section-block-lg {
                padding: 36px 0;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .btn-primary,
            .btn-accent,
            .btn-outline {
                padding: 10px 20px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 520px) {
            .container-main {
                padding: 0 10px;
            }
            .stat-number {
                font-size: 1.4rem;
            }
            .card-base:hover {
                transform: none;
            }
        }

/* roulang page: category1 */
:root {
            --sidebar-width: 260px;
            --sidebar-bg: #151825;
            --sidebar-text: #d8dae2;
            --sidebar-active-bg: rgba(108, 63, 181, 0.25);
            --sidebar-active-text: #d2b8eb;
            --sidebar-hover-bg: rgba(255, 255, 255, 0.04);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s 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: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            line-height: 1.7;
            color: #1f2232;
            background-color: #f8f9fb;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

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

        :focus-visible {
            outline: 2px solid #9465cd;
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ========== 桌面端布局容器 ========== */
        .app-layout {
            display: flex;
            min-height: 100vh;
        }

        /* ========== 左侧竖向导航（桌面端） ========== */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--sidebar-bg);
            z-index: 100;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-nav, 2px 0 20px rgba(0, 0, 0, 0.08));
            transition: transform var(--transition-smooth);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-nav .nav-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-brand .brand-logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, #7a45b8 0%, #4a287d 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(108, 63, 181, 0.35);
        }

        .sidebar-nav .nav-brand .brand-text {
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .sidebar-nav .nav-menu {
            flex: 1;
            padding: 16px 14px;
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-nav .nav-menu li a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 16px;
            border-radius: 10px;
            color: #b3b7c7;
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .sidebar-nav .nav-menu li a:hover {
            background: var(--sidebar-hover-bg);
            color: #e8daf5;
        }

        .sidebar-nav .nav-menu li a.active {
            background: var(--sidebar-active-bg);
            color: var(--sidebar-active-text);
            font-weight: 600;
            box-shadow: inset 3px 0 0 #9465cd;
            border-radius: 10px 10px 10px 10px;
        }

        .sidebar-nav .nav-menu li a .nav-icon {
            width: 22px;
            text-align: center;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-footer {
            padding: 16px 20px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            flex-shrink: 0;
        }

        .sidebar-nav .nav-footer .nav-cta-btn {
            display: block;
            width: 100%;
            padding: 11px 20px;
            border-radius: 10px;
            background: linear-gradient(135deg, #7a45b8 0%, #5a3199 100%);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            text-align: center;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 14px rgba(108, 63, 181, 0.3);
        }

        .sidebar-nav .nav-footer .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(108, 63, 181, 0.4);
            background: linear-gradient(135deg, #9465cd 0%, #6C3FB5 100%);
        }

        .sidebar-nav .nav-footer .support-text {
            color: #8a90a8;
            font-size: 0.78rem;
            margin-top: 10px;
            text-align: center;
        }

        /* ========== 右侧内容区 ========== */
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ========== 移动端头部 ========== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: #151825;
            z-index: 99;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }

        .mobile-header .m-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
        }

        .mobile-header .m-logo .logo-icon-sm {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, #7a45b8 0%, #4a287d 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
        }

        .mobile-header .menu-toggle {
            margin-left: auto;
            color: #fff;
            font-size: 1.4rem;
            padding: 8px;
            border-radius: 8px;
            transition: background var(--transition-fast);
        }

        .mobile-header .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        /* 移动端遮罩 */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 98;
            transition: opacity var(--transition-smooth);
        }

        .sidebar-overlay.show {
            display: block;
            opacity: 1;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .sidebar-nav {
                transform: translateX(-100%);
                box-shadow: 4px 0 30px rgba(0, 0, 0, 0.3);
            }
            .sidebar-nav.mobile-open {
                transform: translateX(0);
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }
            .sidebar-overlay.show {
                display: block;
            }
        }

        @media (min-width: 1025px) {
            .sidebar-nav {
                transform: translateX(0) !important;
            }
            .mobile-header {
                display: none !important;
            }
            .sidebar-overlay {
                display: none !important;
            }
            .main-content {
                margin-left: var(--sidebar-width);
                padding-top: 0;
            }
        }

        /* ========== 板块通用间距 ========== */
        .section-block {
            padding: 64px 0;
        }
        .section-block-sm {
            padding: 40px 0;
        }
        .section-block-lg {
            padding: 80px 0;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 40px 0;
            }
            .section-block-lg {
                padding: 52px 0;
            }
            .section-block-sm {
                padding: 28px 0;
            }
        }

        /* ========== 卡片悬停效果 ========== */
        .card-hover-lift {
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }
        .card-hover-lift:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.1);
        }

        /* ========== 标签样式 ========== */
        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.01em;
            transition: all var(--transition-fast);
        }
        .tag-pill.tag-brand {
            background: #f5f0fa;
            color: #5a3199;
        }
        .tag-pill.tag-accent {
            background: #fff9e0;
            color: #b87d00;
        }
        .tag-pill.tag-outline {
            background: transparent;
            border: 1px solid #d2b8eb;
            color: #5a3199;
        }
        .tag-pill:hover {
            transform: scale(1.04);
        }

        /* ========== FAQ手风琴基础 ========== */
        .faq-item {
            border: 1px solid #e8eaf0;
            border-radius: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
            background: #fff;
        }
        .faq-item:hover {
            border-color: #d2b8eb;
        }
        .faq-item summary {
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: #2d3245;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-arrow {
            transition: transform var(--transition-fast);
            font-size: 0.85rem;
            color: #7a45b8;
            flex-shrink: 0;
        }
        .faq-item[open] summary .faq-arrow {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 22px 20px;
            color: #535a75;
            font-size: 0.93rem;
            line-height: 1.8;
        }

        /* ========== 装饰分隔线 ========== */
        .divider-dot {
            width: 48px;
            height: 4px;
            border-radius: 4px;
            background: linear-gradient(90deg, #7a45b8, #d2b8eb);
            margin: 0 auto;
        }
        .divider-dot-left {
            width: 48px;
            height: 4px;
            border-radius: 4px;
            background: linear-gradient(90deg, #7a45b8, #d2b8eb);
        }

        /* ========== 统计数字动画 ========== */
        .stat-number {
            font-variant-numeric: tabular-nums;
            font-feature-settings: "tnum";
            letter-spacing: -0.02em;
        }

        /* ========== 滚动条美化（侧边栏） ========== */
        .sidebar-nav::-webkit-scrollbar {
            width: 4px;
        }
        .sidebar-nav::-webkit-scrollbar-track {
            background: transparent;
        }
        .sidebar-nav::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.12);
            border-radius: 4px;
        }

        /* ========== 骨架加载渐变 ========== */
        @keyframes shimmer {
            0% {
                background-position: -200% 0;
            }
            100% {
                background-position: 200% 0;
            }
        }

/* roulang page: category2 */
:root {
            --brand-50: #fef3ee;
            --brand-100: #fde4d7;
            --brand-200: #fac5ae;
            --brand-300: #f69d7b;
            --brand-400: #f17046;
            --brand-500: #ee4d22;
            --brand-600: #df3618;
            --brand-700: #b92616;
            --brand-800: #932119;
            --brand-900: #771f18;
            --brand-950: #400c0a;
            --accent-300: #fbbf24;
            --accent-400: #f59e0b;
            --accent-500: #d97706;
            --deep-900: #0f0f1a;
            --deep-950: #080814;
            --surface-50: #fafafa;
            --surface-100: #f5f5f5;
            --surface-200: #e8e8e8;
            --surface-700: #3a3a4a;
            --surface-800: #262636;
            --text-primary: #1a1a2e;
            --text-secondary: #5a5a72;
            --text-muted: #8888a0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --sidebar-width: 250px;
            --transition-fast: 180ms ease;
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            line-height: 1.7;
            background-color: #fafafa;
            color: #1a1a2e;
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            outline: none;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
        }
        p {
            margin: 0;
        }

        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: linear-gradient(180deg, #0f0f1a 0%, #141428 40%, #0d0d1c 100%);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 4px 0 24px rgba(0, 0, 0, 0.25);
            transition: transform var(--transition-smooth);
        }

        .sidebar-logo-area {
            padding: 24px 20px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
            flex-shrink: 0;
        }
        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
            transition: opacity var(--transition-fast);
        }
        .sidebar-logo:hover {
            opacity: 0.88;
        }
        .sidebar-logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, #ee4d22 0%, #df3618 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.95rem;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(238, 77, 34, 0.4);
        }

        .sidebar-nav-list {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav-list .nav-section-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: rgba(255, 255, 255, 0.3);
            padding: 12px 10px 6px;
            font-weight: 600;
        }
        .sidebar-nav-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.93rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
        }
        .sidebar-nav-list a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
        }
        .sidebar-nav-list a.active {
            background: rgba(238, 77, 34, 0.18);
            color: #ffffff;
            font-weight: 600;
            box-shadow: inset 3px 0 0 #ee4d22;
        }
        .sidebar-nav-list a .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 0.85rem;
            opacity: 0.7;
            flex-shrink: 0;
        }
        .sidebar-nav-list a.active .nav-icon {
            opacity: 1;
            color: #f17046;
        }

        .sidebar-footer-cta {
            padding: 16px 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            flex-shrink: 0;
        }
        .sidebar-footer-cta .sidebar-cta-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, #ee4d22 0%, #df3618 100%);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 14px rgba(238, 77, 34, 0.35);
            letter-spacing: 0.02em;
        }
        .sidebar-footer-cta .sidebar-cta-btn:hover {
            box-shadow: 0 6px 20px rgba(238, 77, 34, 0.5);
            transform: translateY(-1px);
        }

        .main-content-area {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            background: #fafafa;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: #0f0f1a;
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }
        .mobile-header .m-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #ffffff;
            font-weight: 700;
            font-size: 1.05rem;
            letter-spacing: 0.02em;
        }
        .mobile-header .m-logo .logo-icon-sm {
            width: 30px;
            height: 30px;
            border-radius: 6px;
            background: linear-gradient(135deg, #ee4d22 0%, #df3618 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            color: #fff;
            flex-shrink: 0;
        }
        .mobile-header .menu-toggle {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            transition: background var(--transition-fast);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mobile-header .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        .mobile-drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1001;
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .mobile-drawer-overlay.open {
            display: block;
            opacity: 1;
        }
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 280px;
            height: 100vh;
            background: #0f0f1a;
            z-index: 1002;
            transform: translateX(-100%);
            transition: transform var(--transition-smooth);
            display: flex;
            flex-direction: column;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 4px 0 28px rgba(0, 0, 0, 0.4);
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-drawer .drawer-header {
            padding: 18px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-drawer .drawer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .mobile-drawer .drawer-close {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            transition: background var(--transition-fast);
        }
        .mobile-drawer .drawer-close:hover {
            background: rgba(255, 255, 255, 0.16);
        }
        .mobile-drawer .drawer-nav {
            flex: 1;
            overflow-y: auto;
            padding: 12px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .mobile-drawer .drawer-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 13px 14px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
        }
        .mobile-drawer .drawer-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }
        .mobile-drawer .drawer-nav a.active {
            background: rgba(238, 77, 34, 0.2);
            color: #fff;
            font-weight: 600;
            box-shadow: inset 3px 0 0 #ee4d22;
        }

        .section-block {
            padding: 64px 0;
        }
        .section-block-sm {
            padding: 40px 0;
        }
        .section-block-lg {
            padding: 80px 0;
        }

        .content-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .content-container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .card-hover {
            transition: all var(--transition-smooth);
            cursor: pointer;
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .glass-card {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.5);
            border-radius: var(--radius-lg);
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
        }
        .tag-hot {
            background: #fef3ee;
            color: #df3618;
            border: 1px solid #fde4d7;
        }
        .tag-new {
            background: #eefbf4;
            color: #0d7a3e;
            border: 1px solid #d2f5e0;
        }
        .tag-live {
            background: #fef9ee;
            color: #b45309;
            border: 1px solid #fef0d0;
        }

        .stat-card {
            text-align: center;
            padding: 28px 20px;
            border-radius: var(--radius-lg);
            background: #ffffff;
            border: 1px solid #e8e8e8;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #f69d7b;
        }
        .stat-card .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #ee4d22 0%, #df3618 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.1;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: #5a5a72;
            margin-top: 6px;
            font-weight: 500;
        }

        .event-list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 20px;
            border-radius: var(--radius-md);
            background: #ffffff;
            border: 1px solid #e8e8e8;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .event-list-item:hover {
            border-color: #f69d7b;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .event-list-item .event-date-badge {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, #ee4d22 0%, #df3618 100%);
            color: #fff;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            line-height: 1.1;
        }
        .event-list-item .event-date-badge .date-day {
            font-size: 1.3rem;
        }
        .event-list-item .event-date-badge .date-month {
            font-size: 0.7rem;
            text-transform: uppercase;
            opacity: 0.9;
        }

        .faq-item {
            border: 1px solid #e8e8e8;
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
            background: #ffffff;
        }
        .faq-item:hover {
            border-color: #f69d7b;
        }
        .faq-item summary {
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: #1a1a2e;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: background var(--transition-fast);
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            background: #fef9f8;
        }
        .faq-item summary .faq-arrow {
            font-size: 0.8rem;
            color: #8888a0;
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item[open] summary .faq-arrow {
            transform: rotate(180deg);
            color: #ee4d22;
        }
        .faq-item .faq-answer {
            padding: 0 20px 18px;
            color: #5a5a72;
            font-size: 0.93rem;
            line-height: 1.75;
        }

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            background: linear-gradient(135deg, #ee4d22 0%, #df3618 100%);
            color: #ffffff;
            box-shadow: 0 4px 16px rgba(238, 77, 34, 0.35);
            cursor: pointer;
            border: none;
        }
        .btn-brand:hover {
            box-shadow: 0 6px 24px rgba(238, 77, 34, 0.5);
            transform: translateY(-2px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.93rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            background: transparent;
            color: #1a1a2e;
            border: 2px solid #e8e8e8;
            cursor: pointer;
        }
        .btn-outline:hover {
            border-color: #ee4d22;
            color: #ee4d22;
            background: #fef9f8;
        }

        .review-card {
            background: #ffffff;
            border: 1px solid #e8e8e8;
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition-fast);
            position: relative;
        }
        .review-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #f69d7b;
        }
        .review-card::before {
            content: '"';
            position: absolute;
            top: 8px;
            left: 16px;
            font-size: 3.5rem;
            color: #fde4d7;
            font-weight: 700;
            line-height: 1;
            pointer-events: none;
            font-family: Georgia, serif;
        }

        @media (max-width: 1024px) {
            .sidebar-nav {
                transform: translateX(-100%);
                box-shadow: none;
            }
            .sidebar-nav.mobile-visible {
                transform: translateX(0);
                box-shadow: 4px 0 24px rgba(0, 0, 0, 0.3);
                z-index: 1003;
            }
            .main-content-area {
                margin-left: 0;
                padding-top: 60px;
            }
            .mobile-header {
                display: flex;
            }
            .section-block {
                padding: 44px 0;
            }
            .section-block-lg {
                padding: 56px 0;
            }
            .section-block-sm {
                padding: 30px 0;
            }
            .content-container,
            .content-container-wide {
                padding: 0 16px;
            }
            .stat-card .stat-number {
                font-size: 2rem;
            }
            .event-list-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 14px 16px;
            }
            .event-list-item .event-date-badge {
                width: 44px;
                height: 44px;
            }
            .event-list-item .event-date-badge .date-day {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 640px) {
            .content-container,
            .content-container-wide {
                padding: 0 12px;
            }
            .section-block {
                padding: 32px 0;
            }
            .section-block-lg {
                padding: 40px 0;
            }
            .btn-brand,
            .btn-outline {
                padding: 11px 20px;
                font-size: 0.85rem;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-number {
                font-size: 1.7rem;
            }
            .review-card {
                padding: 18px;
            }
            .faq-item summary {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
        }

        .animate-fade-up {
            animation: fadeUp 0.7s ease forwards;
        }
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-delay-1 {
            animation-delay: 0.1s;
            opacity: 0;
        }
        .animate-delay-2 {
            animation-delay: 0.2s;
            opacity: 0;
        }
        .animate-delay-3 {
            animation-delay: 0.3s;
            opacity: 0;
        }
        .animate-delay-4 {
            animation-delay: 0.4s;
            opacity: 0;
        }

/* roulang page: category4 */
:root {
            --brand-600: #7c3aed;
            --brand-500: #8b5cf6;
            --accent-400: #fbbf24;
            --accent-500: #f59e0b;
            --deep-950: #0a0a0f;
            --deep-900: #111118;
            --surface-50: #fafafa;
            --surface-100: #f5f5f5;
            --surface-200: #e8e8ec;
            --text-primary: #1a1a24;
            --text-secondary: #5c5c6e;
            --text-muted: #9090a0;
            --border-light: #e4e4ec;
            --radius-lg: 0.875rem;
            --radius-xl: 1.125rem;
            --shadow-soft: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.08);
            --shadow-elevated: 0 8px 40px rgba(0, 0, 0, 0.12);
            --transition-fast: 180ms ease;
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
            --sidebar-width: 260px;
        }

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

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

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            line-height: 1.65;
            color: #1a1a24;
            background: #fafafa;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        .page-wrapper {
            display: flex;
            min-height: 100vh;
        }

        /* 左侧竖向导航 - 桌面端 */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: #ffffff;
            border-right: 1px solid #e8e8ec;
            z-index: 100;
            display: flex;
            flex-direction: column;
            padding: 1.75rem 1.25rem;
            overflow-y: auto;
            transition: transform var(--transition-smooth);
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.03);
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.25rem;
            font-weight: 700;
            color: #1a1a24;
            margin-bottom: 2rem;
            padding: 0.5rem 0.4rem;
            letter-spacing: -0.01em;
        }

        .sidebar-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, #7c3aed, #8b5cf6);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3);
        }

        .sidebar-nav-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.35rem;
            flex: 1;
        }

        .sidebar-nav-list li a {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            padding: 0.7rem 0.85rem;
            border-radius: 0.625rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: #5c5c6e;
            transition: all var(--transition-fast);
            position: relative;
        }

        .sidebar-nav-list li a:hover {
            background: #f5f0ff;
            color: #7c3aed;
        }

        .sidebar-nav-list li a.active {
            background: #f5f0ff;
            color: #7c3aed;
            font-weight: 600;
            box-shadow: inset 3px 0 0 #7c3aed;
            border-radius: 0.625rem 0.625rem 0.625rem 0.625rem;
        }

        .sidebar-nav-list li a .nav-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #d4d4dc;
            flex-shrink: 0;
            transition: background var(--transition-fast);
        }

        .sidebar-nav-list li a.active .nav-dot,
        .sidebar-nav-list li a:hover .nav-dot {
            background: #7c3aed;
        }

        .sidebar-cta {
            margin-top: auto;
            padding-top: 1.5rem;
            border-top: 1px solid #e8e8ec;
        }

        .sidebar-cta .cta-btn {
            display: block;
            width: 100%;
            padding: 0.7rem 1rem;
            background: linear-gradient(135deg, #7c3aed, #6d28d9);
            color: #fff;
            border-radius: 0.625rem;
            font-weight: 600;
            font-size: 0.9rem;
            text-align: center;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.25);
        }

        .sidebar-cta .cta-btn:hover {
            box-shadow: 0 6px 22px rgba(124, 58, 237, 0.4);
            transform: translateY(-1px);
        }

        /* 主内容区 */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        main {
            flex: 1;
        }

        /* 移动端顶部导航 */
        .mobile-header {
            display: none;
            position: sticky;
            top: 0;
            z-index: 99;
            background: #ffffff;
            border-bottom: 1px solid #e8e8ec;
            padding: 0.75rem 1.25rem;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-header .m-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.1rem;
            color: #1a1a24;
        }

        .mobile-header .logo-icon-sm {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, #7c3aed, #8b5cf6);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.8rem;
        }

        .menu-toggle {
            width: 38px;
            height: 38px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: #5c5c6e;
            transition: all var(--transition-fast);
        }

        .menu-toggle:hover {
            background: #f5f5f5;
            color: #7c3aed;
        }

        /* 移动端抽屉菜单 */
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 280px;
            height: 100vh;
            background: #ffffff;
            z-index: 200;
            transform: translateX(-100%);
            transition: transform var(--transition-smooth);
            box-shadow: 4px 0 30px rgba(0, 0, 0, 0.18);
            display: flex;
            flex-direction: column;
            padding: 1.5rem 1.25rem;
            overflow-y: auto;
        }

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

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.45);
            z-index: 199;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }

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

        .mobile-drawer .drawer-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.2rem;
            font-weight: 700;
            color: #1a1a24;
            margin-bottom: 1.5rem;
        }

        .mobile-drawer .drawer-logo .logo-icon-dr {
            width: 36px;
            height: 36px;
            border-radius: 9px;
            background: linear-gradient(135deg, #7c3aed, #8b5cf6);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.9rem;
        }

        .mobile-drawer .drawer-nav-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .mobile-drawer .drawer-nav-list li a {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.75rem 0.9rem;
            border-radius: 0.5rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: #5c5c6e;
            transition: all var(--transition-fast);
        }

        .mobile-drawer .drawer-nav-list li a:hover,
        .mobile-drawer .drawer-nav-list li a.active {
            background: #f5f0ff;
            color: #7c3aed;
            font-weight: 600;
        }

        .drawer-close {
            position: absolute;
            top: 1rem;
            right: 1rem;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #5c5c6e;
            background: #f5f5f5;
            transition: all var(--transition-fast);
        }

        .drawer-close:hover {
            background: #e8e8ec;
            color: #1a1a24;
        }

        /* 板块间距 */
        .section-block {
            padding: 3.5rem 2rem;
        }
        .section-block-sm {
            padding: 2rem 2rem;
        }
        .section-block-lg {
            padding: 5rem 2rem;
        }

        @media (min-width: 1024px) {
            .section-block {
                padding: 4rem 3rem;
            }
            .section-block-sm {
                padding: 2.5rem 3rem;
            }
            .section-block-lg {
                padding: 5.5rem 3rem;
            }
        }

        @media (min-width: 1280px) {
            .section-block {
                padding: 4.5rem 4rem;
            }
            .section-block-sm {
                padding: 3rem 4rem;
            }
            .section-block-lg {
                padding: 6rem 4rem;
            }
        }

        /* 卡片通用 */
        .card-hover {
            transition: all var(--transition-smooth);
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-elevated);
        }

        /* 标签 */
        .tag-pill {
            display: inline-block;
            padding: 0.3rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.01em;
            transition: all var(--transition-fast);
        }

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid #e8e8ec;
            transition: all var(--transition-fast);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            cursor: pointer;
            padding: 1.15rem 0;
            font-weight: 600;
            font-size: 1rem;
            color: #1a1a24;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            user-select: none;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: #7c3aed;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            color: #5c5c6e;
            line-height: 1.7;
            font-size: 0.925rem;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-bottom: 1rem;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: #7c3aed;
        }
        .faq-icon {
            transition: transform 0.35s ease, color var(--transition-fast);
            flex-shrink: 0;
            color: #9090a0;
            font-size: 0.85rem;
        }

        /* 响应式 */
        @media (max-width: 1023px) {
            .sidebar-nav {
                display: none;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .section-block {
                padding: 2.5rem 1.25rem;
            }
            .section-block-sm {
                padding: 1.5rem 1.25rem;
            }
            .section-block-lg {
                padding: 3.5rem 1.25rem;
            }
        }

        @media (max-width: 640px) {
            .section-block {
                padding: 2rem 1rem;
            }
            .section-block-sm {
                padding: 1.25rem 1rem;
            }
            .section-block-lg {
                padding: 2.5rem 1rem;
            }
        }