/* roulang page: index */
:root {
            --nav-width: 260px;
            --header-height: 64px;
            --color-brand: #d4551e;
            --color-brand-hover: #b0411b;
            --color-brand-light: #fef5f0;
            --color-text: #292524;
            --color-text-soft: #78716c;
            --color-text-muted: #a8a29e;
            --color-border: #e7e5e4;
            --color-bg: #fafaf9;
            --color-surface: #ffffff;
            --color-surface-alt: #f5f2ee;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 2px 8px rgba(0, 0, 0, 0.05), 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-xl: 0 4px 16px rgba(0, 0, 0, 0.06), 0 16px 48px rgba(0, 0, 0, 0.10);
            --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;
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: #292524;
            background-color: #fafaf9;
            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;
        }

        input {
            font-family: inherit;
        }

        /* 左侧导航 - 桌面端 */
        .site-nav {
            position: fixed;
            left: 0;
            top: 0;
            width: var(--nav-width);
            height: 100vh;
            background: #ffffff;
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-smooth);
            box-shadow: var(--shadow-sm);
        }

        .site-nav__logo {
            padding: 28px 24px 20px;
            border-bottom: 1px solid var(--color-border);
            flex-shrink: 0;
        }

        .site-nav__logo-text {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 1.5rem;
            font-weight: 700;
            color: #292524;
            letter-spacing: 0.06em;
        }

        .site-nav__logo-sub {
            font-size: 0.75rem;
            color: #a8a29e;
            letter-spacing: 0.04em;
            margin-top: 2px;
        }

        .site-nav__links {
            flex: 1;
            overflow-y: auto;
            padding: 16px 0;
            list-style: none;
            margin: 0;
        }

        .site-nav__links li {
            margin: 0;
        }

        .site-nav__link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 24px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #57534e;
            transition: all var(--transition-fast);
            border-left: 3px solid transparent;
            letter-spacing: 0.02em;
        }

        .site-nav__link:hover {
            background: #fef5f0;
            color: #d4551e;
            border-left-color: #f28b4b;
        }

        .site-nav__link--active {
            background: #fef5f0;
            color: #d4551e;
            border-left-color: #d4551e;
            font-weight: 600;
        }

        .site-nav__link-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            opacity: 0.7;
        }

        .site-nav__footer {
            padding: 20px 24px;
            border-top: 1px solid var(--color-border);
            flex-shrink: 0;
            font-size: 0.78rem;
            color: #a8a29e;
            letter-spacing: 0.03em;
        }

        /* 主内容区 */
        .site-main {
            margin-left: var(--nav-width);
            min-height: 100vh;
        }

        /* 移动端顶部导航 */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: var(--shadow-sm);
        }

        .mobile-header__logo {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 1.2rem;
            font-weight: 700;
            color: #292524;
            letter-spacing: 0.04em;
        }

        .mobile-menu-btn {
            width: 40px;
            height: 40px;
            border: none;
            background: transparent;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-menu-btn:hover {
            background: #f5f2ee;
        }

        .mobile-menu-btn__bar {
            display: block;
            width: 22px;
            height: 2px;
            background: #292524;
            border-radius: 2px;
            position: relative;
            transition: all var(--transition-smooth);
        }

        .mobile-menu-btn__bar::before,
        .mobile-menu-btn__bar::after {
            content: '';
            display: block;
            width: 22px;
            height: 2px;
            background: #292524;
            border-radius: 2px;
            position: absolute;
            left: 0;
            transition: all var(--transition-smooth);
        }

        .mobile-menu-btn__bar::before {
            top: -7px;
        }
        .mobile-menu-btn__bar::after {
            top: 7px;
        }

        .mobile-menu-btn--open .mobile-menu-btn__bar {
            background: transparent;
        }
        .mobile-menu-btn--open .mobile-menu-btn__bar::before {
            top: 0;
            transform: rotate(45deg);
        }
        .mobile-menu-btn--open .mobile-menu-btn__bar::after {
            top: 0;
            transform: rotate(-45deg);
        }

        /* 移动端遮罩 */
        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.45);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-smooth);
            pointer-events: none;
        }
        .nav-overlay--visible {
            opacity: 1;
            pointer-events: auto;
        }

        /* 板块通用 */
        .section-padding {
            padding: 72px 0;
        }
        .section-title {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 2rem;
            font-weight: 700;
            color: #292524;
            letter-spacing: 0.04em;
            margin-bottom: 8px;
        }
        .section-subtitle {
            font-size: 1rem;
            color: #78716c;
            margin-bottom: 40px;
            letter-spacing: 0.02em;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: #d4551e;
            margin-bottom: 8px;
            background: #fef5f0;
            padding: 4px 12px;
            border-radius: 20px;
        }

        /* 卡片通用 */
        .card-elegant {
            background: #ffffff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            transition: all var(--transition-smooth);
            overflow: hidden;
            border: 1px solid transparent;
        }
        .card-elegant:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: #e7e5e4;
        }

        /* 按钮 */
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: #d4551e;
            color: #ffffff;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-brand:hover {
            background: #b0411b;
            box-shadow: 0 4px 16px rgba(212, 85, 30, 0.35);
            transform: translateY(-1px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 27px;
            background: transparent;
            color: #d4551e;
            border: 2px solid #d4551e;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-outline:hover {
            background: #fef5f0;
            border-color: #b0411b;
            color: #b0411b;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: transparent;
            color: #57534e;
            border: none;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-ghost:hover {
            background: #f5f2ee;
            color: #292524;
        }

        /* 标签 */
        .tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.04em;
        }
        .tag--brand {
            background: #fef5f0;
            color: #d4551e;
        }
        .tag--neutral {
            background: #f5f2ee;
            color: #78716c;
        }
        .tag--accent {
            background: #e8e3db;
            color: #5f493b;
        }

        /* 统计数字 */
        .stat-number {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 2.8rem;
            font-weight: 700;
            color: #d4551e;
            line-height: 1.1;
            letter-spacing: 0.02em;
        }
        .stat-label {
            font-size: 0.9rem;
            color: #78716c;
            margin-top: 4px;
            letter-spacing: 0.03em;
        }

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid #e7e5e4;
            padding: 20px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .faq-item:first-child {
            border-top: 1px solid #e7e5e4;
        }
        .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            color: #292524;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            letter-spacing: 0.02em;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            color: #57534e;
            font-size: 0.95rem;
            line-height: 1.8;
            letter-spacing: 0.02em;
        }
        .faq-item--open .faq-answer {
            max-height: 400px;
            padding-top: 12px;
        }
        .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
            color: #a8a29e;
        }
        .faq-item--open .faq-icon {
            transform: rotate(180deg);
            color: #d4551e;
        }

        /* 响应式 */
        @media (max-width: 1023px) {
            .site-nav {
                transform: translateX(-100%);
                width: 280px;
            }
            .site-nav--open {
                transform: translateX(0);
            }
            .site-main {
                margin-left: 0;
                padding-top: var(--header-height);
            }
            .mobile-header {
                display: flex;
            }
            .nav-overlay {
                display: block;
            }
            .section-padding {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .stat-number {
                font-size: 2.2rem;
            }
        }

        @media (min-width: 1024px) {
            .site-nav--open {
                transform: translateX(0);
            }
            .nav-overlay {
                display: none !important;
            }
            .site-nav {
                transform: translateX(0) !important;
            }
        }

        @media (max-width: 640px) {
            .section-padding {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .card-elegant {
                border-radius: var(--radius-lg);
            }
            .site-nav {
                width: 260px;
            }
        }

        /* 自定义滚动条 */
        .site-nav__links::-webkit-scrollbar {
            width: 4px;
        }
        .site-nav__links::-webkit-scrollbar-track {
            background: transparent;
        }
        .site-nav__links::-webkit-scrollbar-thumb {
            background: #d6d3d1;
            border-radius: 4px;
        }

        /* 焦点可见轮廓 */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid #d4551e;
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: category3 */
:root {
            --color-primary: #c8a45c;
            --color-primary-dark: #a6803a;
            --color-primary-light: #e0c880;
            --color-bg: #faf9f6;
            --color-surface: #ffffff;
            --color-text: #1c1917;
            --color-text-soft: #5c5348;
            --color-text-muted: #8a8076;
            --color-border: #e5e0d8;
            --color-accent: #2a2520;
            --shadow-sm: 0 1px 3px rgba(28, 25, 23, 0.06);
            --shadow-md: 0 4px 16px rgba(28, 25, 23, 0.08);
            --shadow-lg: 0 8px 32px rgba(28, 25, 23, 0.12);
            --shadow-xl: 0 16px 48px rgba(28, 25, 23, 0.16);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --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;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        @media (min-width: 1024px) {
            body {
                flex-direction: row;
            }
        }

        /* ===== 侧边栏导航 ===== */
        .sidebar {
            background: linear-gradient(180deg, #1c1917 0%, #2a2520 100%);
            color: #d6d0c8;
            width: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 100;
            box-shadow: 4px 0 24px rgba(28, 25, 23, 0.25);
            transition: transform var(--transition-smooth);
            overflow-y: auto;
        }

        .sidebar__logo-area {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
        }

        .sidebar__logo-text {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', 'Songti SC', serif;
            font-size: 1.55rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.06em;
            line-height: 1.2;
        }

        .sidebar__logo-sub {
            font-size: 0.65rem;
            letter-spacing: 0.16em;
            color: #a8a090;
            margin-top: 4px;
            text-transform: uppercase;
            font-weight: 400;
        }

        .sidebar__nav {
            flex: 1;
            padding: 16px 12px;
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar__nav-item {
            list-style: none;
        }

        .sidebar__nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: #c4bcb2;
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            position: relative;
            cursor: pointer;
        }

        .sidebar__nav-link:hover {
            background: rgba(200, 164, 92, 0.12);
            color: #e8dcc8;
            transform: translateX(3px);
        }

        .sidebar__nav-link--active {
            background: linear-gradient(135deg, rgba(200, 164, 92, 0.22) 0%, rgba(200, 164, 92, 0.08) 100%);
            color: #f0e4c8;
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--color-primary);
            border-radius: var(--radius-md);
        }

        .sidebar__nav-link--active:hover {
            background: linear-gradient(135deg, rgba(200, 164, 92, 0.28) 0%, rgba(200, 164, 92, 0.12) 100%);
            color: #fff;
        }

        .sidebar__nav-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            opacity: 0.8;
        }

        .sidebar__nav-link--active .sidebar__nav-icon {
            opacity: 1;
            color: var(--color-primary-light);
        }

        .sidebar__footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
            font-size: 0.7rem;
            color: #7a7068;
            letter-spacing: 0.03em;
        }

        /* ===== 移动端顶部导航 ===== */
        .mobile-header {
            display: none;
            background: #1c1917;
            color: #fff;
            padding: 0 16px;
            height: 56px;
            align-items: center;
            justify-content: space-between;
            position: sticky;
            top: 0;
            z-index: 200;
            box-shadow: var(--shadow-md);
        }

        .mobile-header__logo {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-weight: 700;
            font-size: 1.2rem;
            letter-spacing: 0.04em;
            color: #fff;
            text-decoration: none;
        }

        .mobile-header__toggle {
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
        }

        .mobile-header__toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 150;
            opacity: 0;
            transition: opacity var(--transition-smooth);
            pointer-events: none;
        }

        .mobile-overlay--open {
            opacity: 1;
            pointer-events: auto;
        }

        @media (max-width: 1023px) {
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
                position: fixed;
                z-index: 180;
                transition: transform var(--transition-smooth);
            }

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

            .mobile-header {
                display: flex;
            }

            .mobile-overlay {
                display: block;
            }

            body {
                flex-direction: column;
            }

            .main-content {
                margin-left: 0 !important;
                padding-top: 0 !important;
            }
        }

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

            .mobile-overlay {
                display: none;
            }

            .sidebar {
                transform: translateX(0);
            }

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

        /* ===== 主内容区 ===== */
        .main-content {
            flex: 1;
            min-height: 100vh;
            background: var(--color-bg);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 60px 32px;
        }

        .section--alt {
            background: #f5f2ec;
        }

        .section--dark {
            background: #1c1917;
            color: #e8e2d6;
        }

        .section__inner {
            max-width: 1100px;
            margin: 0 auto;
        }

        .section__label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--color-primary-dark);
            background: rgba(200, 164, 92, 0.1);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section__heading {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', 'Songti SC', serif;
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .section--dark .section__heading {
            color: #f0e8d8;
        }

        .section__subheading {
            font-size: 1rem;
            color: var(--color-text-soft);
            max-width: 640px;
            line-height: 1.6;
        }

        .section--dark .section__subheading {
            color: #b8afa0;
        }

        /* ===== 会员 Hero ===== */
        .member-hero {
            position: relative;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .member-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(28, 25, 23, 0.82) 0%, rgba(28, 25, 23, 0.55) 50%, rgba(28, 25, 23, 0.7) 100%);
            z-index: 1;
        }

        .member-hero__content {
            position: relative;
            z-index: 2;
            max-width: 1100px;
            margin: 0 auto;
            padding: 60px 32px;
            width: 100%;
        }

        .member-hero__badge {
            display: inline-block;
            background: var(--color-primary);
            color: #1c1917;
            font-weight: 700;
            font-size: 0.85rem;
            padding: 8px 20px;
            border-radius: 24px;
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }

        .member-hero__title {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 2.8rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.04em;
            line-height: 1.25;
            margin-bottom: 12px;
        }

        .member-hero__desc {
            font-size: 1.1rem;
            color: #d6cec0;
            max-width: 560px;
            line-height: 1.7;
        }

        /* ===== 会员等级卡片 ===== */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .tier-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .tier-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
            border-color: var(--color-primary-light);
        }

        .tier-card--featured {
            border: 2px solid var(--color-primary);
            box-shadow: var(--shadow-lg), 0 0 0 8px rgba(200, 164, 92, 0.08);
            background: linear-gradient(180deg, #fffef9 0%, #fffdf5 100%);
        }

        .tier-card--featured::before {
            content: '热门推荐';
            position: absolute;
            top: 14px;
            right: -28px;
            background: var(--color-primary);
            color: #1c1917;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 32px;
            transform: rotate(45deg);
            letter-spacing: 0.04em;
        }

        .tier-card__icon {
            width: 60px;
            height: 60px;
            margin: 0 auto 16px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
        }

        .tier-card__icon--silver {
            background: linear-gradient(135deg, #e8e4dc, #c8c0b4);
            color: #5c5040;
        }

        .tier-card__icon--gold {
            background: linear-gradient(135deg, #f0d88a, #c8a44c);
            color: #3d2e10;
        }

        .tier-card__icon--diamond {
            background: linear-gradient(135deg, #d4e4f8, #8ab8e0);
            color: #1a3048;
        }

        .tier-card__icon--supreme {
            background: linear-gradient(135deg, #2a1a3a, #5a2a6a);
            color: #e0c0f0;
        }

        .tier-card__name {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--color-text);
        }

        .tier-card__price {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-bottom: 12px;
        }

        .tier-card__features {
            list-style: none;
            text-align: left;
            font-size: 0.85rem;
            color: var(--color-text-soft);
            line-height: 2;
        }

        .tier-card__features li::before {
            content: '✓ ';
            color: var(--color-primary-dark);
            font-weight: 700;
        }

        .tier-card__btn {
            display: inline-block;
            margin-top: 16px;
            padding: 10px 24px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-decoration: none;
            border: none;
        }

        .tier-card__btn--outline {
            background: transparent;
            border: 2px solid var(--color-primary);
            color: var(--color-primary-dark);
        }

        .tier-card__btn--outline:hover {
            background: var(--color-primary);
            color: #fff;
        }

        .tier-card__btn--solid {
            background: var(--color-primary);
            color: #1c1917;
            border: 2px solid var(--color-primary);
        }

        .tier-card__btn--solid:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
        }

        /* ===== 权益列表 ===== */
        .benefit-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            list-style: none;
        }

        .benefit-list__item {
            display: flex;
            gap: 14px;
            padding: 18px 20px;
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }

        .benefit-list__item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-primary-light);
            transform: translateY(-2px);
        }

        .benefit-list__icon {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            border-radius: 50%;
            background: rgba(200, 164, 92, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--color-primary-dark);
        }

        .benefit-list__text h4 {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            margin-bottom: 2px;
        }

        .benefit-list__text p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.5;
        }

        /* ===== 统计数字 ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-card {
            padding: 24px 16px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .stat-card__number {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--color-primary-light);
            letter-spacing: 0.02em;
        }

        .stat-card__label {
            font-size: 0.9rem;
            color: #b8afa0;
            margin-top: 4px;
        }

        /* ===== 专享服务卡片 ===== */
        .service-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .service-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
            transition: all var(--transition-smooth);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-xl);
        }

        .service-card__img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .service-card__body {
            padding: 20px;
        }

        .service-card__title {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .service-card__desc {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.5;
        }

        /* ===== 评价卡片 ===== */
        .testimonial-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
        }

        .testimonial-card__stars {
            color: #e8b830;
            font-size: 0.9rem;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }

        .testimonial-card__text {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .testimonial-card__author {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--color-text);
        }

        .testimonial-card__role {
            font-size: 0.75rem;
            color: var(--color-text-muted);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-item__q {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--color-text);
            background: #fefdfa;
            transition: background var(--transition-fast);
        }

        .faq-item__q:hover {
            background: #fdfaf2;
        }

        .faq-item__q i {
            transition: transform var(--transition-fast);
            color: var(--color-primary-dark);
            font-size: 0.8rem;
        }

        .faq-item__a {
            padding: 0 22px 18px;
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, #2a2520 0%, #1c1917 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #e8e2d6;
            position: relative;
            overflow: hidden;
        }

        .cta-block::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(200, 164, 92, 0.08);
            pointer-events: none;
        }

        .cta-block__title {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }

        .cta-block__desc {
            font-size: 1rem;
            color: #b8afa0;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }

        .cta-block__btn {
            display: inline-block;
            padding: 14px 36px;
            background: var(--color-primary);
            color: #1c1917;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 28px;
            text-decoration: none;
            letter-spacing: 0.04em;
            transition: all var(--transition-fast);
            position: relative;
            z-index: 1;
            border: none;
            cursor: pointer;
        }

        .cta-block__btn:hover {
            background: #d4b468;
            box-shadow: 0 8px 28px rgba(200, 164, 92, 0.35);
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1023px) {
            .section {
                padding: 40px 20px;
            }
            .member-hero__title {
                font-size: 2rem;
            }
            .member-hero__desc {
                font-size: 0.95rem;
            }
            .tier-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .benefit-list {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .service-cards {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .testimonial-cards {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .section__heading {
                font-size: 1.5rem;
            }
            .stat-card__number {
                font-size: 2.2rem;
            }
            .cta-block {
                padding: 36px 24px;
            }
            .cta-block__title {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 640px) {
            .tier-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .service-cards {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .section {
                padding: 32px 14px;
            }
            .member-hero {
                min-height: 300px;
            }
            .member-hero__title {
                font-size: 1.6rem;
            }
            .member-hero__content {
                padding: 40px 16px;
            }
            .section__heading {
                font-size: 1.3rem;
            }
            .stat-card__number {
                font-size: 1.8rem;
            }
            .faq-item__q {
                font-size: 0.85rem;
                padding: 14px 16px;
            }
            .faq-item__a {
                padding: 0 16px 14px;
                font-size: 0.8rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #c9913b;
            --color-primary-dark: #a0742a;
            --color-primary-light: #e9c088;
            --color-accent: #8b5e3c;
            --color-bg: #f8f7f4;
            --color-white: #ffffff;
            --color-text: #2c2420;
            --color-text-soft: #6b5f56;
            --color-text-muted: #9a8d82;
            --color-border: #e0d9cf;
            --color-border-light: #ede8df;
            --color-dark: #1c1917;
            --color-dark-soft: #2a2521;
            --color-success: #5a8a6a;
            --color-warning: #c9913b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(28, 25, 23, 0.06);
            --shadow-md: 0 4px 16px rgba(28, 25, 23, 0.08);
            --shadow-lg: 0 8px 32px rgba(28, 25, 23, 0.12);
            --shadow-xl: 0 16px 48px rgba(28, 25, 23, 0.16);
            --nav-width: 250px;
            --nav-width-tablet: 210px;
            --transition-fast: 180ms ease;
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

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

        /* ========== APP LAYOUT ========== */
        .app-layout {
            display: flex;
            min-height: 100vh;
        }

        /* ========== SITE NAV (Left Sidebar Desktop) ========== */
        .site-nav {
            position: sticky;
            top: 0;
            height: 100vh;
            width: var(--nav-width);
            min-width: var(--nav-width);
            background: var(--color-dark);
            color: #c5bfb5;
            display: flex;
            flex-direction: column;
            z-index: 100;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform var(--transition-smooth), width var(--transition-smooth);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .site-nav__logo {
            padding: 1.6rem 1.5rem 1.2rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .site-nav__logo a {
            display: block;
            text-decoration: none;
            color: inherit;
        }

        .site-nav__logo-text {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 1.35rem;
            font-weight: 700;
            color: #f0e6d3;
            letter-spacing: 0.06em;
            line-height: 1.3;
        }

        .site-nav__logo-sub {
            font-size: 0.65rem;
            letter-spacing: 0.12em;
            color: #8a8178;
            margin-top: 2px;
            text-transform: uppercase;
        }

        .site-nav__links {
            list-style: none;
            flex: 1;
            padding: 1rem 0.8rem;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .site-nav__link {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            padding: 0.7rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: #b0a89e;
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .site-nav__link:hover {
            background: rgba(255, 255, 255, 0.05);
            color: #e8dfd2;
        }

        .site-nav__link--active {
            background: rgba(201, 145, 59, 0.15);
            color: #e9c088;
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--color-primary);
            border-radius: var(--radius-sm);
        }

        .site-nav__link--active:hover {
            background: rgba(201, 145, 59, 0.2);
            color: #f0d9a8;
        }

        .site-nav__link-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            opacity: 0.8;
        }

        .site-nav__link--active .site-nav__link-icon {
            opacity: 1;
            color: #e9c088;
        }

        .site-nav__footer {
            padding: 1rem 1.2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.7rem;
            color: #6b6158;
            flex-shrink: 0;
            line-height: 1.5;
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            position: fixed;
            top: 0.75rem;
            left: 0.75rem;
            z-index: 200;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: var(--color-dark);
            color: #e8dfd2;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-fast);
        }

        .nav-toggle:hover {
            background: var(--color-dark-soft);
        }

        .nav-toggle__bar {
            display: block;
            width: 20px;
            height: 2px;
            background: currentColor;
            border-radius: 2px;
            position: relative;
            transition: all var(--transition-smooth);
        }

        .nav-toggle__bar::before,
        .nav-toggle__bar::after {
            content: '';
            display: block;
            width: 20px;
            height: 2px;
            background: currentColor;
            border-radius: 2px;
            position: absolute;
            transition: all var(--transition-smooth);
        }

        .nav-toggle__bar::before {
            top: -6px;
        }
        .nav-toggle__bar::after {
            top: 6px;
        }

        .nav-toggle--open .nav-toggle__bar {
            background: transparent;
        }
        .nav-toggle--open .nav-toggle__bar::before {
            top: 0;
            transform: rotate(45deg);
        }
        .nav-toggle--open .nav-toggle__bar::after {
            top: 0;
            transform: rotate(-45deg);
        }

        /* Mobile nav overlay */
        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 95;
            opacity: 0;
            transition: opacity var(--transition-smooth);
            pointer-events: none;
        }
        .nav-overlay--visible {
            opacity: 1;
            pointer-events: auto;
        }

        /* ========== MAIN CONTENT AREA ========== */
        .main-content {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            padding: 4rem 3rem;
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            min-height: 340px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(28, 25, 23, 0.82) 0%, rgba(28, 25, 23, 0.5) 55%, rgba(28, 25, 23, 0.35) 100%);
            z-index: 1;
        }

        .page-banner__content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }

        .page-banner__label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: #e9c088;
            background: rgba(201, 145, 59, 0.15);
            padding: 0.35rem 0.9rem;
            border-radius: 20px;
            margin-bottom: 1rem;
            border: 1px solid rgba(201, 145, 59, 0.25);
        }

        .page-banner__title {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 2.6rem;
            font-weight: 700;
            color: #ffffff;
            line-height: 1.3;
            margin-bottom: 0.8rem;
            letter-spacing: 0.03em;
        }

        .page-banner__desc {
            font-size: 1.05rem;
            color: #d5cdc3;
            line-height: 1.7;
            max-width: 550px;
        }

        /* ========== SECTION STYLES ========== */
        .section {
            padding: 4rem 3rem;
        }

        .section--alt {
            background: var(--color-white);
        }

        .section--dark {
            background: var(--color-dark);
            color: #d5cdc3;
        }

        .section__header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section__label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.07em;
            color: var(--color-primary);
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }

        .section__title {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.35;
            margin-bottom: 0.6rem;
            letter-spacing: 0.02em;
        }

        .section--dark .section__title {
            color: #f0e6d3;
        }

        .section__subtitle {
            font-size: 0.95rem;
            color: var(--color-text-soft);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .section--dark .section__subtitle {
            color: #a8a29e;
        }

        /* ========== CARDS ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
        }

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

        .card-grid--four {
            grid-template-columns: repeat(4, 1fr);
        }

        .service-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-border);
        }

        .service-card__image {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }

        .service-card__body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card__icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(201, 145, 59, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 0.8rem;
            color: var(--color-primary);
            flex-shrink: 0;
        }

        .service-card__title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 0.5rem;
            letter-spacing: 0.02em;
        }

        .service-card__desc {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            flex: 1;
        }

        .service-card__tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--color-primary);
            background: rgba(201, 145, 59, 0.08);
            padding: 0.25rem 0.65rem;
            border-radius: 14px;
            margin-top: 0.8rem;
            align-self: flex-start;
        }

        /* ========== PROCESS STEPS ========== */
        .process-list {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
            justify-content: center;
        }

        .process-step {
            flex: 1;
            min-width: 180px;
            max-width: 220px;
            text-align: center;
            position: relative;
        }

        .process-step__number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            position: relative;
            z-index: 2;
            box-shadow: 0 4px 14px rgba(201, 145, 59, 0.35);
        }

        .process-step__title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text);
            margin-bottom: 0.35rem;
        }

        .process-step__desc {
            font-size: 0.82rem;
            color: var(--color-text-soft);
            line-height: 1.5;
        }

        .process-connector {
            display: none;
            position: absolute;
            top: 28px;
            left: calc(50% + 28px);
            width: calc(100% - 56px);
            height: 2px;
            background: var(--color-border);
            z-index: 1;
        }

        /* ========== STATS ========== */
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            justify-content: center;
        }

        .stat-item {
            text-align: center;
            min-width: 140px;
            flex: 1;
            max-width: 200px;
        }

        .stat-item__number {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.1;
            margin-bottom: 0.3rem;
        }

        .stat-item__label {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            font-weight: 500;
        }

        .section--dark .stat-item__number {
            color: #e9c088;
        }
        .section--dark .stat-item__label {
            color: #a8a29e;
        }

        /* ========== CASE CARDS ========== */
        .case-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
        }

        .case-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .case-card__image {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }

        .case-card__body {
            padding: 1.3rem;
        }

        .case-card__title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text);
            margin-bottom: 0.4rem;
        }

        .case-card__desc {
            font-size: 0.84rem;
            color: var(--color-text-soft);
            line-height: 1.5;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 750px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: 1.2rem 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .faq-item__question {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            user-select: none;
            letter-spacing: 0.02em;
        }

        .faq-item__icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(201, 145, 59, 0.1);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            transition: transform var(--transition-smooth);
            font-weight: 600;
        }

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

        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding-top var(--transition-smooth);
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.65;
            padding-top: 0;
        }

        .faq-item--open .faq-item__answer {
            max-height: 400px;
            padding-top: 0.7rem;
        }

        /* ========== CTA ========== */
        .cta-block {
            text-align: center;
            padding: 3.5rem 1.5rem;
            background: linear-gradient(135deg, #2a2521 0%, #1c1917 100%);
            border-radius: var(--radius-xl);
            color: #e8dfd2;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(201, 145, 59, 0.08);
            pointer-events: none;
        }

        .cta-block__title {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            position: relative;
            z-index: 1;
            color: #f0e6d3;
        }

        .cta-block__desc {
            font-size: 0.95rem;
            color: #b8b0a6;
            margin-bottom: 1.5rem;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.8rem;
            font-size: 0.9rem;
            font-weight: 600;
            border-radius: 30px;
            letter-spacing: 0.03em;
            transition: all var(--transition-smooth);
            text-decoration: none;
            cursor: pointer;
            position: relative;
            z-index: 1;
        }

        .btn--primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(201, 145, 59, 0.3);
        }

        .btn--primary:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 6px 22px rgba(201, 145, 59, 0.45);
            transform: translateY(-2px);
        }

        .btn--outline {
            background: transparent;
            color: #e8dfd2;
            border: 2px solid rgba(232, 223, 210, 0.4);
        }

        .btn--outline:hover {
            border-color: #e8dfd2;
            background: rgba(255, 255, 255, 0.04);
        }

        .btn--sm {
            padding: 0.45rem 1.1rem;
            font-size: 0.78rem;
            border-radius: 20px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-dark);
            color: #a8a29e;
            padding: 3rem 3rem 2rem;
            margin-top: auto;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .app-layout {
                flex-direction: column;
            }

            .site-nav {
                position: fixed;
                top: 0;
                left: 0;
                height: 100vh;
                width: 260px;
                min-width: 260px;
                transform: translateX(-100%);
                box-shadow: var(--shadow-xl);
                z-index: 150;
                transition: transform var(--transition-smooth);
            }

            .site-nav--open {
                transform: translateX(0);
            }

            .nav-toggle {
                display: flex;
            }

            .nav-overlay {
                display: block;
            }

            .main-content {
                width: 100%;
            }

            .page-banner {
                padding: 3rem 1.5rem;
                min-height: 260px;
            }

            .page-banner__title {
                font-size: 2rem;
            }

            .page-banner__desc {
                font-size: 0.9rem;
            }

            .section {
                padding: 2.5rem 1.5rem;
            }

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

            .card-grid--two {
                grid-template-columns: 1fr;
            }

            .process-list {
                gap: 1rem;
            }

            .process-step {
                min-width: 140px;
                max-width: 160px;
            }

            .site-footer {
                padding: 2.5rem 1.5rem 1.5rem;
            }

            .section__title {
                font-size: 1.6rem;
            }

            .cta-block__title {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .site-nav {
                width: 100%;
                min-width: 100%;
                max-width: 320px;
            }

            .page-banner {
                padding: 2.5rem 1.2rem;
                min-height: 220px;
            }

            .page-banner__title {
                font-size: 1.7rem;
            }

            .page-banner__desc {
                font-size: 0.85rem;
            }

            .section {
                padding: 2rem 1rem;
            }

            .section__title {
                font-size: 1.4rem;
            }

            .card-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .card-grid--four {
                grid-template-columns: 1fr 1fr;
            }

            .card-grid--two {
                grid-template-columns: 1fr;
            }

            .service-card__image {
                height: 160px;
            }

            .process-list {
                flex-direction: column;
                align-items: center;
                gap: 0.8rem;
            }

            .process-step {
                max-width: 100%;
                min-width: auto;
                width: 100%;
                display: flex;
                align-items: center;
                gap: 1rem;
                text-align: left;
            }

            .process-step__number {
                margin: 0;
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
                flex-shrink: 0;
            }

            .stats-row {
                gap: 1.2rem;
            }

            .stat-item {
                min-width: 110px;
                flex: 1 1 40%;
                max-width: none;
            }

            .stat-item__number {
                font-size: 2rem;
            }

            .cta-block {
                padding: 2.5rem 1rem;
            }

            .cta-block__title {
                font-size: 1.3rem;
            }

            .btn {
                padding: 0.6rem 1.4rem;
                font-size: 0.82rem;
            }

            .site-footer {
                padding: 2rem 1rem 1.5rem;
            }

            .faq-item__question {
                font-size: 0.9rem;
            }

            .case-card__image {
                height: 180px;
            }
        }

        @media (max-width: 520px) {
            .page-banner {
                padding: 2rem 1rem;
                min-height: 200px;
            }

            .page-banner__title {
                font-size: 1.4rem;
            }

            .page-banner__label {
                font-size: 0.7rem;
            }

            .section {
                padding: 1.8rem 0.8rem;
            }

            .section__title {
                font-size: 1.25rem;
            }

            .card-grid--four {
                grid-template-columns: 1fr;
            }

            .service-card__image {
                height: 180px;
            }

            .stats-row {
                gap: 1rem;
            }

            .stat-item__number {
                font-size: 1.7rem;
            }

            .stat-item__label {
                font-size: 0.75rem;
            }

            .btn {
                padding: 0.55rem 1.2rem;
                font-size: 0.78rem;
                border-radius: 24px;
            }
        }

/* roulang page: category4 */
:root {
            --color-brand: #c5892e;
            --color-brand-dark: #a66d24;
            --color-brand-light: #e0a33e;
            --color-bg: #fafaf8;
            --color-surface: #ffffff;
            --color-text: #1c1917;
            --color-text-weak: #78716c;
            --color-text-muted: #a8a29e;
            --color-border: #e7e5e4;
            --color-nav-bg: #1c1917;
            --color-nav-text: #a8a29e;
            --color-nav-active: #e0a33e;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --nav-width: 260px;
            --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', 'Helvetica Neue', sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
        }

        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;
        }

        input {
            font-family: inherit;
        }

        ::selection {
            background-color: rgba(197, 137, 46, 0.22);
            color: #1c1917;
        }

        /* ========== 左侧竖向导航 ========== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--nav-width);
            background-color: var(--color-nav-bg);
            z-index: 100;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            overflow-x: hidden;
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.25);
            transition: transform var(--transition-smooth);
            scrollbar-width: thin;
            scrollbar-color: #3d3935 transparent;
        }

        .site-nav::-webkit-scrollbar {
            width: 4px;
        }

        .site-nav::-webkit-scrollbar-track {
            background: transparent;
        }

        .site-nav::-webkit-scrollbar-thumb {
            background: #3d3935;
            border-radius: 4px;
        }

        .site-nav__logo {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .site-nav__logo-text {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 1.55rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.04em;
            line-height: 1.2;
        }

        .site-nav__logo-sub {
            font-size: 0.65rem;
            letter-spacing: 0.12em;
            color: #78716c;
            margin-top: 2px;
            font-weight: 500;
        }

        .site-nav__links {
            list-style: none;
            margin: 0;
            padding: 16px 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .site-nav__link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: var(--color-nav-text);
            font-size: 0.925rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            position: relative;
            text-decoration: none;
            white-space: nowrap;
        }

        .site-nav__link:hover {
            background-color: rgba(255, 255, 255, 0.05);
            color: #e7e5e4;
        }

        .site-nav__link--active {
            background-color: rgba(197, 137, 46, 0.15);
            color: var(--color-nav-active);
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--color-nav-active);
        }

        .site-nav__link--active:hover {
            background-color: rgba(197, 137, 46, 0.2);
            color: #e0a33e;
        }

        .site-nav__link-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            opacity: 0.75;
            transition: opacity var(--transition-fast);
        }

        .site-nav__link--active .site-nav__link-icon {
            opacity: 1;
            color: var(--color-nav-active);
        }

        .site-nav__footer {
            padding: 16px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.7rem;
            color: #57534e;
            flex-shrink: 0;
            text-align: center;
            letter-spacing: 0.03em;
        }

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

        /* ========== 移动端顶部导航 ========== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 99;
            background-color: #1c1917;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
            padding: 14px 18px;
            align-items: center;
            justify-content: space-between;
        }

        .mobile-nav__logo {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.04em;
        }

        .mobile-nav__toggle {
            background: none;
            border: none;
            color: #e7e5e4;
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .mobile-nav__toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .mobile-nav__toggle svg {
            width: 26px;
            height: 26px;
        }

        .mobile-nav__menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background-color: #1c1917;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 8px 12px 16px;
            flex-direction: column;
            gap: 2px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
            max-height: 70vh;
            overflow-y: auto;
        }

        .mobile-nav__menu--open {
            display: flex;
        }

        .mobile-nav__menu a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: #a8a29e;
            font-size: 0.925rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            text-decoration: none;
        }

        .mobile-nav__menu a:hover {
            background-color: rgba(255, 255, 255, 0.05);
            color: #e7e5e4;
        }

        .mobile-nav__menu a.mobile-nav__link--active {
            background-color: rgba(197, 137, 46, 0.15);
            color: #e0a33e;
            font-weight: 600;
        }

        .mobile-nav__menu a svg {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            opacity: 0.7;
        }

        /* ========== Banner ========== */
        .page-banner {
            position: relative;
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            padding: 80px 40px 70px;
            min-height: 340px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(28, 25, 23, 0.82) 0%, rgba(28, 25, 23, 0.55) 50%, rgba(28, 25, 23, 0.72) 100%);
            z-index: 1;
        }

        .page-banner__content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .page-banner__badge {
            display: inline-block;
            background-color: rgba(197, 137, 46, 0.85);
            color: #ffffff;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        .page-banner__title {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 2.6rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.04em;
            line-height: 1.25;
            margin: 0 0 12px;
        }

        .page-banner__desc {
            font-size: 1.05rem;
            color: #d6d3d1;
            line-height: 1.7;
            max-width: 580px;
        }

        /* ========== 卡片与组件 ========== */
        .news-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            height: 100%;
            border: 1px solid var(--color-border);
        }

        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #d6d3d1;
        }

        .news-card__image-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background-color: #f5f5f4;
        }

        .news-card__image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .news-card:hover .news-card__image-wrap img {
            transform: scale(1.04);
        }

        .news-card__badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background-color: rgba(197, 137, 46, 0.9);
            color: #ffffff;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            padding: 4px 12px;
            border-radius: 14px;
            z-index: 3;
        }

        .news-card__body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card__meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.78rem;
            color: #a8a29e;
            margin-bottom: 8px;
        }

        .news-card__title {
            font-size: 1.1rem;
            font-weight: 600;
            color: #1c1917;
            line-height: 1.45;
            margin: 0 0 8px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .news-card__title a:hover {
            color: #a66d24;
        }

        .news-card__excerpt {
            font-size: 0.875rem;
            color: #78716c;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }

        .news-card__readmore {
            font-size: 0.85rem;
            font-weight: 600;
            color: #a66d24;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
            margin-top: auto;
            text-decoration: none;
        }

        .news-card__readmore:hover {
            gap: 8px;
            color: #85541f;
        }

        .news-card__readmore svg {
            width: 16px;
            height: 16px;
        }

        /* 头条卡片 */
        .news-card--featured {
            flex-direction: row;
            border: 1px solid #d6d3d1;
        }

        .news-card--featured .news-card__image-wrap {
            width: 48%;
            flex-shrink: 0;
            aspect-ratio: auto;
            min-height: 280px;
        }

        .news-card--featured .news-card__body {
            padding: 28px 30px 28px;
            justify-content: center;
        }

        .news-card--featured .news-card__title {
            font-size: 1.35rem;
        }

        /* 标签 */
        .tag-pill {
            display: inline-block;
            padding: 7px 18px;
            border-radius: 24px;
            font-size: 0.82rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1.5px solid var(--color-border);
            background: #ffffff;
            color: #57534e;
            white-space: nowrap;
            text-decoration: none;
        }

        .tag-pill:hover {
            border-color: #c5892e;
            color: #a66d24;
            background: #fdf8f0;
        }

        .tag-pill--active {
            background: #c5892e;
            color: #ffffff;
            border-color: #c5892e;
        }

        .tag-pill--active:hover {
            background: #a66d24;
            border-color: #a66d24;
            color: #ffffff;
        }

        /* 排行列表 */
        .rank-list {
            list-style: none;
            padding: 0;
            margin: 0;
            counter-reset: rank;
        }

        .rank-list__item {
            counter-increment: rank;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid #f0efed;
            transition: background var(--transition-fast);
            cursor: pointer;
            border-radius: var(--radius-sm);
            padding-left: 8px;
            padding-right: 8px;
            margin: 0 -8px;
        }

        .rank-list__item:hover {
            background: #fdf8f0;
        }

        .rank-list__item:last-child {
            border-bottom: none;
        }

        .rank-list__num {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 1.3rem;
            font-weight: 700;
            color: #c5892e;
            width: 32px;
            flex-shrink: 0;
            text-align: center;
            line-height: 1.2;
        }

        .rank-list__item:nth-child(1) .rank-list__num {
            color: #e0a33e;
            font-size: 1.5rem;
        }

        .rank-list__item:nth-child(2) .rank-list__num {
            color: #b88a4b;
        }

        .rank-list__item:nth-child(3) .rank-list__num {
            color: #8b7355;
        }

        .rank-list__info {
            flex: 1;
            min-width: 0;
        }

        .rank-list__title {
            font-size: 0.9rem;
            font-weight: 600;
            color: #1c1917;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .rank-list__date {
            font-size: 0.72rem;
            color: #a8a29e;
            margin-top: 3px;
        }

        /* CTA区域 */
        .cta-section {
            background: linear-gradient(135deg, #1c1917 0%, #292524 40%, #3d3935 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(197, 137, 46, 0.08);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(197, 137, 46, 0.06);
            pointer-events: none;
        }

        .cta-section__content {
            position: relative;
            z-index: 1;
        }

        /* 统计条 */
        .stat-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            padding: 32px 20px;
            background: #ffffff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
        }

        .stat-bar__item {
            text-align: center;
            flex: 1;
            min-width: 120px;
            padding: 0 16px;
        }

        .stat-bar__num {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', serif;
            font-size: 2.2rem;
            font-weight: 700;
            color: #c5892e;
            line-height: 1.1;
        }

        .stat-bar__label {
            font-size: 0.82rem;
            color: #78716c;
            margin-top: 4px;
            letter-spacing: 0.03em;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1199px) {
            .site-nav {
                transform: translateX(-100%);
                width: 270px;
            }

            .site-nav--open {
                transform: translateX(0);
            }

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

            .mobile-nav {
                display: flex;
            }

            .main-content {
                padding-top: 56px;
            }

            .page-banner {
                padding: 50px 24px 44px;
                min-height: 260px;
            }

            .page-banner__title {
                font-size: 2rem;
            }

            .page-banner__desc {
                font-size: 0.95rem;
            }

            .news-card--featured {
                flex-direction: column;
            }

            .news-card--featured .news-card__image-wrap {
                width: 100%;
                aspect-ratio: 16 / 9;
                min-height: auto;
            }

            .news-card--featured .news-card__body {
                padding: 20px 22px 22px;
            }

            .news-card--featured .news-card__title {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 767px) {
            .page-banner {
                padding: 40px 18px 36px;
                min-height: 220px;
            }

            .page-banner__title {
                font-size: 1.6rem;
            }

            .page-banner__desc {
                font-size: 0.875rem;
            }

            .page-banner__badge {
                font-size: 0.7rem;
                padding: 5px 12px;
            }

            .news-card__body {
                padding: 16px 16px 18px;
            }

            .news-card__title {
                font-size: 1rem;
            }

            .news-card__excerpt {
                font-size: 0.8rem;
            }

            .stat-bar {
                gap: 12px;
                padding: 20px 14px;
            }

            .stat-bar__num {
                font-size: 1.6rem;
            }

            .stat-bar__item {
                min-width: 80px;
                padding: 0 8px;
            }

            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }

            .tag-pill {
                font-size: 0.75rem;
                padding: 6px 14px;
            }
        }

        @media (max-width: 520px) {
            .page-banner__title {
                font-size: 1.35rem;
            }

            .news-card--featured .news-card__image-wrap {
                aspect-ratio: 4 / 3;
            }

            .stat-bar__num {
                font-size: 1.3rem;
            }

            .stat-bar__label {
                font-size: 0.7rem;
            }

            .rank-list__num {
                font-size: 1.1rem;
                width: 24px;
            }

            .rank-list__title {
                font-size: 0.82rem;
            }
        }

        /* 导航遮罩 */
        .nav-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 95;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }

        .nav-overlay--visible {
            opacity: 1;
            pointer-events: auto;
        }

        @media (min-width: 1200px) {
            .nav-overlay {
                display: none !important;
            }
            .site-nav {
                transform: translateX(0) !important;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #c9a96e;
            --color-primary-hover: #b8934f;
            --color-primary-light: #f5ecd7;
            --color-dark: #1c1917;
            --color-dark-2: #2d2825;
            --color-bg: #fafaf9;
            --color-bg-alt: #f5f0eb;
            --color-text: #1c1917;
            --color-text-soft: #6b6560;
            --color-text-light: #8c8580;
            --color-border: #e7e0d8;
            --color-border-light: #f0ebe4;
            --color-white: #ffffff;
            --color-accent: #d4a853;
            --color-accent-dark: #b8860b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(28, 25, 23, 0.06);
            --shadow-md: 0 4px 16px rgba(28, 25, 23, 0.08);
            --shadow-lg: 0 8px 32px rgba(28, 25, 23, 0.12);
            --shadow-xl: 0 16px 48px rgba(28, 25, 23, 0.16);
            --nav-width: 260px;
            --nav-width-collapsed: 0px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.4s 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: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        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;
            background: none;
            padding: 0;
        }

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

        ::selection {
            background-color: var(--color-primary-light);
            color: var(--color-dark);
        }

        :focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 2px;
        }

        .site-wrapper {
            display: flex;
            min-height: 100vh;
            position: relative;
        }

        /* ============ SIDEBAR NAVIGATION (Desktop) ============ */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: linear-gradient(180deg, #1c1917 0%, #2d2825 100%);
            color: #d6d0c8;
            display: flex;
            flex-direction: column;
            z-index: 1000;
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.25);
            transition: transform var(--transition-normal), width var(--transition-normal);
            overflow-y: auto;
            overflow-x: hidden;
            border-right: 1px solid rgba(201, 169, 110, 0.15);
        }

        .site-nav::-webkit-scrollbar {
            width: 4px;
        }
        .site-nav::-webkit-scrollbar-track {
            background: transparent;
        }
        .site-nav::-webkit-scrollbar-thumb {
            background: rgba(201, 169, 110, 0.3);
            border-radius: 4px;
        }

        .site-nav__logo {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            flex-shrink: 0;
        }

        .site-nav__logo-text {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', 'Songti SC', serif;
            font-size: 1.5rem;
            font-weight: 700;
            color: #f5e6c8;
            letter-spacing: 0.06em;
            line-height: 1.3;
        }

        .site-nav__logo-sub {
            font-size: 0.65rem;
            letter-spacing: 0.18em;
            color: #a09888;
            margin-top: 4px;
            font-weight: 400;
        }

        .site-nav__links {
            list-style: none;
            margin: 0;
            padding: 16px 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .site-nav__link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            font-weight: 500;
            color: #bfb8ae;
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.02em;
            white-space: nowrap;
            text-decoration: none;
        }

        .site-nav__link:hover {
            background: rgba(255, 255, 255, 0.05);
            color: #f0e6d2;
            transform: translateX(3px);
        }

        .site-nav__link--active {
            background: linear-gradient(135deg, rgba(201, 169, 110, 0.2) 0%, rgba(201, 169, 110, 0.08) 100%);
            color: #f5e0b8;
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--color-primary);
            border-radius: var(--radius-md);
        }

        .site-nav__link--active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 60%;
            background: var(--color-primary);
            border-radius: 0 3px 3px 0;
        }

        .site-nav__link-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            opacity: 0.75;
            transition: opacity var(--transition-fast);
        }

        .site-nav__link--active .site-nav__link-icon {
            opacity: 1;
            color: var(--color-primary);
        }

        .site-nav__link:hover .site-nav__link-icon {
            opacity: 0.9;
        }

        .site-nav__footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            font-size: 0.7rem;
            color: #7a7268;
            flex-shrink: 0;
            letter-spacing: 0.04em;
        }

        /* ============ MAIN CONTENT AREA ============ */
        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition-normal);
        }

        /* ============ MOBILE HEADER BAR ============ */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: #1c1917;
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
            height: 56px;
        }

        .mobile-header__logo {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', 'Songti SC', serif;
            font-size: 1.15rem;
            font-weight: 700;
            color: #f5e6c8;
            letter-spacing: 0.04em;
        }

        .mobile-header__burger {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: #d6d0c8;
            font-size: 1.4rem;
            transition: all var(--transition-fast);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .mobile-header__burger:active {
            background: rgba(255, 255, 255, 0.1);
        }

        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 998;
            transition: opacity var(--transition-normal);
            opacity: 0;
            pointer-events: none;
        }
        .mobile-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        /* ============ SECTION STYLES ============ */
        .section-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .section-padding {
            padding: 64px 0;
        }

        .section-padding-lg {
            padding: 80px 0;
        }

        .section-title {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', 'Songti SC', serif;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-dark);
            letter-spacing: 0.03em;
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-soft);
            letter-spacing: 0.02em;
            margin-bottom: 40px;
        }

        .section-divider {
            width: 48px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
            margin-bottom: 20px;
        }

        /* ============ BANNER ============ */
        .page-banner {
            position: relative;
            padding: 80px 0 72px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(28, 25, 23, 0.88) 0%, rgba(28, 25, 23, 0.65) 50%, rgba(28, 25, 23, 0.8) 100%);
            z-index: 1;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--color-bg) 0%, transparent 100%);
            z-index: 2;
        }

        .page-banner__content {
            position: relative;
            z-index: 3;
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 32px;
            width: 100%;
        }

        .page-banner__badge {
            display: inline-block;
            background: rgba(201, 169, 110, 0.25);
            color: #f5e0b8;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            letter-spacing: 0.06em;
            font-weight: 500;
            margin-bottom: 16px;
            border: 1px solid rgba(201, 169, 110, 0.35);
        }

        .page-banner__title {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', 'Songti SC', serif;
            font-size: 2.8rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
            line-height: 1.25;
        }

        .page-banner__desc {
            font-size: 1.05rem;
            color: #d6cec0;
            max-width: 600px;
            line-height: 1.8;
        }

        /* ============ CARDS ============ */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
        }

        .event-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .event-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-border);
        }

        .event-card__image-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .event-card__image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .event-card:hover .event-card__image-wrap img {
            transform: scale(1.06);
        }

        .event-card__badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-primary);
            color: #fff;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            z-index: 2;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }

        .event-card__body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .event-card__title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 8px;
            line-height: 1.4;
            letter-spacing: 0.02em;
        }

        .event-card__meta {
            font-size: 0.8rem;
            color: var(--color-text-light);
            margin-bottom: 10px;
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .event-card__meta i {
            color: var(--color-primary);
            margin-right: 4px;
        }

        .event-card__desc {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            flex: 1;
        }

        .event-card__footer {
            padding: 14px 20px;
            border-top: 1px solid var(--color-border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--color-text-soft);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 25px;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            border: 2px solid var(--color-primary);
        }
        .btn-primary:hover {
            background: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
            box-shadow: 0 6px 20px rgba(201, 169, 110, 0.35);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--color-dark);
            border: 2px solid var(--color-border);
        }
        .btn-outline:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-primary-light);
        }

        .btn-sm {
            padding: 6px 16px;
            font-size: 0.8rem;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }

        /* ============ TIMELINE ============ */
        .timeline {
            position: relative;
            padding-left: 32px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--color-border);
            border-radius: 1px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 28px;
            padding-left: 28px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--color-primary);
            border: 3px solid var(--color-bg);
            box-shadow: 0 0 0 3px var(--color-primary-light);
            z-index: 1;
        }

        .timeline-item__date {
            font-size: 0.8rem;
            color: var(--color-primary);
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 4px;
        }

        .timeline-item__title {
            font-weight: 700;
            color: var(--color-dark);
            font-size: 1rem;
            margin-bottom: 4px;
        }

        .timeline-item__desc {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            line-height: 1.5;
        }

        /* ============ STAT CARDS ============ */
        .stat-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--color-primary-light);
        }
        .stat-card__number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', 'Songti SC', serif;
            line-height: 1.1;
        }
        .stat-card__label {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            margin-top: 6px;
            letter-spacing: 0.03em;
        }

        /* ============ TAG / FILTER ============ */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 22px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1.5px solid var(--color-border);
            background: var(--color-white);
            color: var(--color-text-soft);
        }
        .tag:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-primary-light);
        }
        .tag--active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            font-weight: 600;
        }

        /* ============ HIGHLIGHT SECTION ============ */
        .highlight-block {
            background: var(--color-dark);
            border-radius: var(--radius-xl);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr 1fr;
            min-height: 360px;
            box-shadow: var(--shadow-lg);
        }
        .highlight-block__image {
            background-size: cover;
            background-position: center;
            min-height: 300px;
        }
        .highlight-block__content {
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            color: #d6cec0;
        }
        .highlight-block__content h3 {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', 'Songti SC', serif;
            font-size: 1.5rem;
            font-weight: 700;
            color: #f5e0b8;
            margin-bottom: 12px;
        }
        .highlight-block__content p {
            line-height: 1.7;
            margin-bottom: 16px;
            font-size: 0.95rem;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            background: linear-gradient(135deg, #1c1917 0%, #2d2825 50%, #1c1917 100%);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            color: #d6cec0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(201, 169, 110, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section h3 {
            font-family: 'Noto Serif SC', 'STSong', 'SimSun', 'Songti SC', serif;
            font-size: 1.7rem;
            font-weight: 700;
            color: #f5e0b8;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            position: relative;
            z-index: 1;
            margin-bottom: 24px;
            font-size: 0.95rem;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn {
            position: relative;
            z-index: 1;
        }

        /* ============ FOOTER (inside main content) ============ */
        .site-footer {
            background: #1c1917;
            color: #a8a29e;
            margin-top: auto;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            :root {
                --nav-width: 0px;
            }

            .site-nav {
                transform: translateX(-100%);
                width: 280px;
                z-index: 1001;
                box-shadow: 4px 0 32px rgba(0, 0, 0, 0.5);
            }
            .site-nav.mobile-open {
                transform: translateX(0);
            }

            .mobile-header {
                display: flex;
            }
            .mobile-overlay {
                display: block;
            }

            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }

            .page-banner {
                min-height: 260px;
                padding: 56px 0 48px;
            }
            .page-banner__title {
                font-size: 2rem;
            }
            .page-banner__desc {
                font-size: 0.9rem;
            }

            .section-container {
                padding: 0 20px;
            }
            .section-padding {
                padding: 48px 0;
            }
            .section-padding-lg {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }

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

            .highlight-block {
                grid-template-columns: 1fr;
                min-height: auto;
            }
            .highlight-block__image {
                min-height: 220px;
            }
            .highlight-block__content {
                padding: 28px 20px;
            }

            .stat-card__number {
                font-size: 2rem;
            }

            .cta-section {
                padding: 40px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.4rem;
            }

            .timeline {
                padding-left: 20px;
            }
            .timeline-item {
                padding-left: 20px;
            }
            .timeline-item::before {
                left: -20px;
                width: 12px;
                height: 12px;
            }
        }

        @media (max-width: 640px) {
            .page-banner__title {
                font-size: 1.6rem;
            }
            .page-banner {
                min-height: 220px;
                padding: 44px 0 36px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .section-padding {
                padding: 36px 0;
            }
            .section-padding-lg {
                padding: 44px 0;
            }
            .section-container {
                padding: 0 16px;
            }
            .event-card__body {
                padding: 16px;
            }
            .event-card__footer {
                padding: 10px 16px;
                flex-direction: column;
                gap: 8px;
                align-items: flex-start;
            }
            .tag {
                padding: 6px 14px;
                font-size: 0.78rem;
            }
            .highlight-block__content {
                padding: 20px 16px;
            }
            .highlight-block__content h3 {
                font-size: 1.25rem;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-card__number {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 400px) {
            .page-banner__title {
                font-size: 1.35rem;
            }
            .btn {
                padding: 8px 18px;
                font-size: 0.82rem;
            }
        }