/* roulang page: index */
/* ============ 设计变量 ============ */
        :root {
            --color-primary: #1B1F2E;
            --color-primary-light: #2A3045;
            --color-accent: #C8A45C;
            --color-accent-hover: #B08D3E;
            --color-accent-light: #F0E6D3;
            --color-bg: #F8F6F3;
            --color-bg-white: #FFFFFF;
            --color-bg-dark: #1B1F2E;
            --color-bg-section: #F2EFEB;
            --color-text: #2C2C2C;
            --color-text-light: #6B6B6B;
            --color-text-muted: #999999;
            --color-text-on-dark: #E8E6E1;
            --color-border: #E0DCD5;
            --color-border-light: #EDEAE5;
            --color-success: #5A8F6C;
            --color-warning: #D4A843;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.11);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.07);
            --shadow-hover: 0 6px 24px rgba(0, 0, 0, 0.13);
            --space-xs: 6px;
            --space-sm: 12px;
            --space-md: 20px;
            --space-lg: 32px;
            --space-xl: 48px;
            --space-2xl: 64px;
            --space-3xl: 80px;
            --nav-width: 238px;
            --nav-width-collapsed: 0px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --font-heading: 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }

        /* ============ 基础 Reset ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            -webkit-tap-highlight-color: transparent;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 3px;
        }
        a:focus:not(:focus-visible) {
            outline: none;
        }

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            line-height: 1.3;
            color: var(--color-primary);
            margin-top: 0;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 700;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            font-weight: 650;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
        }
        p {
            margin: 0 0 1em;
        }

        /* ============ Off-Canvas 与布局 ============ */
        .off-canvas-wrapper {
            min-height: 100vh;
            background-color: var(--color-bg);
            position: relative;
            overflow-x: hidden;
        }

        .off-canvas.position-left {
            width: var(--nav-width);
            background-color: var(--color-primary);
            color: var(--color-text-on-dark);
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.18);
            z-index: 100;
            transition: transform var(--transition-smooth);
        }
        .off-canvas.position-left.is-open {
            transform: translateX(0);
        }

        /* 桌面端 off-canvas 始终可见 */
        .off-canvas.position-left.reveal-for-large {
            transform: translateX(0);
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            height: 100vh;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
        }

        .off-canvas-content {
            transition: margin-left var(--transition-smooth), transform var(--transition-smooth);
            min-height: 100vh;
            background-color: var(--color-bg);
        }

        /* 桌面端内容区偏移 */
        @media screen and (min-width: 1024px) {
            .off-canvas-content {
                margin-left: var(--nav-width);
            }
            .off-canvas.position-left.reveal-for-large~.off-canvas-content {
                margin-left: var(--nav-width);
            }
        }

        /* ============ 左侧导航内部样式 ============ */
        .side-nav {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: var(--space-lg) var(--space-md);
        }
        .side-nav__logo {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            font-size: 1.3rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: #FFFFFF;
            padding-bottom: var(--space-lg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.15);
            margin-bottom: var(--space-lg);
            text-decoration: none;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .side-nav__logo:hover {
            color: var(--color-accent);
        }
        .side-nav__logo i {
            font-size: 1.5rem;
            color: var(--color-accent);
        }
        .side-nav__list {
            list-style: none;
            margin: 0;
            padding: 0;
            flex: 1;
        }
        .side-nav__list li {
            margin-bottom: 2px;
        }
        .side-nav__list a {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            padding: 11px 14px;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.95rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            text-decoration: none;
            position: relative;
        }
        .side-nav__list a:hover {
            color: #FFFFFF;
            background-color: rgba(255, 255, 255, 0.08);
        }
        .side-nav__list a.active {
            color: #FFFFFF;
            background-color: var(--color-accent);
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(200, 164, 92, 0.3);
        }
        .side-nav__list a.active:hover {
            background-color: var(--color-accent-hover);
        }
        .side-nav__list a i {
            width: 20px;
            text-align: center;
            font-size: 0.9rem;
            opacity: 0.8;
        }
        .side-nav__cta {
            margin-top: auto;
            padding-top: var(--space-md);
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }
        .side-nav__cta .btn-side-cta {
            display: block;
            width: 100%;
            padding: 12px 18px;
            text-align: center;
            border-radius: var(--radius-md);
            background-color: transparent;
            border: 1.5px solid var(--color-accent);
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-decoration: none;
        }
        .side-nav__cta .btn-side-cta:hover {
            background-color: var(--color-accent);
            color: #FFFFFF;
            box-shadow: 0 4px 16px rgba(200, 164, 92, 0.35);
        }

        /* ============ 移动端顶部栏 ============ */
        .mobile-top-bar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 90;
            background-color: var(--color-primary);
            padding: var(--space-sm) var(--space-md);
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
        }
        .mobile-top-bar__logo {
            font-size: 1.1rem;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }
        .mobile-top-bar__toggle {
            background: none;
            border: none;
            color: #FFFFFF;
            font-size: 1.4rem;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background-color var(--transition-fast);
        }
        .mobile-top-bar__toggle:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        .mobile-top-bar__toggle i {
            pointer-events: none;
        }

        @media screen and (max-width: 1023px) {
            .mobile-top-bar {
                display: flex;
            }
            .off-canvas.position-left.reveal-for-large {
                transform: translateX(-100%);
                position: fixed;
                top: 0;
                left: 0;
                bottom: 0;
                height: 100vh;
                z-index: 100;
                transition: transform var(--transition-smooth);
            }
            .off-canvas.position-left.is-open.reveal-for-large {
                transform: translateX(0);
            }
            .off-canvas-content {
                margin-left: 0 !important;
            }
        }
        @media screen and (min-width: 1024px) {
            .mobile-top-bar {
                display: none !important;
            }
        }

        /* ============ 主内容容器 ============ */
        .main-content {
            padding: 0;
        }
        .section-container {
            max-width: 1100px;
            margin: 0 auto;
            padding-left: var(--space-lg);
            padding-right: var(--space-lg);
        }
        @media screen and (max-width: 768px) {
            .section-container {
                padding-left: var(--space-md);
                padding-right: var(--space-md);
            }
        }

        /* ============ 板块间距 ============ */
        .section-spacing {
            padding-top: var(--space-3xl);
            padding-bottom: var(--space-3xl);
        }
        @media screen and (max-width: 768px) {
            .section-spacing {
                padding-top: var(--space-xl);
                padding-bottom: var(--space-xl);
            }
        }
        .section-spacing-sm {
            padding-top: var(--space-xl);
            padding-bottom: var(--space-xl);
        }

        /* ============ Hero 板块 ============ */
        .hero-section {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(27, 31, 46, 0.82) 0%, rgba(27, 31, 46, 0.45) 50%, rgba(27, 31, 46, 0.7) 100%);
            z-index: 1;
        }
        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            color: #FFFFFF;
            max-width: 650px;
            padding: var(--space-2xl) 0;
        }
        .hero-section .hero-badge {
            display: inline-block;
            background-color: var(--color-accent);
            color: #FFFFFF;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            padding: 7px 16px;
            border-radius: 20px;
            margin-bottom: var(--space-md);
            text-transform: uppercase;
        }
        .hero-section h1 {
            font-size: 3rem;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: -0.02em;
            margin-bottom: var(--space-md);
            line-height: 1.2;
        }
        .hero-section .hero-desc {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: var(--space-lg);
            line-height: 1.6;
            max-width: 520px;
        }
        .hero-section .hero-buttons {
            display: flex;
            gap: var(--space-md);
            flex-wrap: wrap;
        }
        @media screen and (max-width: 768px) {
            .hero-section {
                min-height: 420px;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .hero-section .hero-desc {
                font-size: 1rem;
            }
            .hero-section .hero-buttons {
                flex-direction: column;
                gap: var(--space-sm);
            }
        }

        /* ============ 按钮系统 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            cursor: pointer;
            border: none;
            transition: all var(--transition-bounce);
            text-decoration: none;
            white-space: nowrap;
            font-family: var(--font-body);
            line-height: 1.3;
        }
        .btn-primary {
            background-color: var(--color-accent);
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(200, 164, 92, 0.3);
        }
        .btn-primary:hover {
            background-color: var(--color-accent-hover);
            box-shadow: 0 6px 22px rgba(200, 164, 92, 0.45);
            transform: translateY(-2px);
            color: #FFFFFF;
        }
        .btn-primary:active {
            transform: scale(0.97);
            box-shadow: 0 2px 8px rgba(200, 164, 92, 0.25);
        }
        .btn-outline {
            background-color: transparent;
            border: 1.5px solid #FFFFFF;
            color: #FFFFFF;
        }
        .btn-outline:hover {
            background-color: #FFFFFF;
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(255, 255, 255, 0.2);
        }
        .btn-outline:active {
            transform: scale(0.97);
        }
        .btn-dark {
            background-color: var(--color-primary);
            color: #FFFFFF;
            border: 1.5px solid var(--color-primary);
        }
        .btn-dark:hover {
            background-color: var(--color-primary-light);
            border-color: var(--color-primary-light);
            box-shadow: 0 4px 16px rgba(27, 31, 46, 0.3);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 9px 18px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 16px 34px;
            font-size: 1.05rem;
            border-radius: var(--radius-lg);
        }

        /* ============ 板块标题 ============ */
        .section-header {
            text-align: center;
            margin-bottom: var(--space-xl);
        }
        .section-header .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: var(--space-xs);
        }
        .section-header h2 {
            margin-bottom: var(--space-sm);
            color: var(--color-primary);
        }
        .section-header .section-subtitle {
            color: var(--color-text-light);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto;
        }
        @media screen and (max-width: 768px) {
            .section-header h2 {
                font-size: 1.5rem;
            }
            .section-header .section-subtitle {
                font-size: 0.9rem;
            }
        }

        /* ============ 数据看板 ============ */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-md);
        }
        .stat-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: var(--space-lg);
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            border: 1px solid var(--color-border-light);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--color-accent-light);
        }
        .stat-card__number {
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1;
        }
        .stat-card__number .accent {
            color: var(--color-accent);
        }
        .stat-card__label {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin-top: var(--space-xs);
            font-weight: 500;
        }
        .stat-card__trend {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            margin-top: var(--space-xs);
        }
        .trend-up {
            background-color: #E8F5E9;
            color: #388E3C;
        }
        .trend-stable {
            background-color: #FFF8E1;
            color: #F57C00;
        }
        @media screen and (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media screen and (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-sm);
            }
            .stat-card {
                padding: var(--space-md);
            }
            .stat-card__number {
                font-size: 2rem;
            }
        }

        /* ============ 品牌矩阵卡片 ============ */
        .brand-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-lg);
        }
        .brand-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }
        .brand-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--color-accent-light);
        }
        .brand-card__img {
            height: 200px;
            object-fit: cover;
            width: 100%;
        }
        .brand-card__body {
            padding: var(--space-md);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .brand-card__tag {
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 6px;
        }
        .brand-card__title {
            font-size: 1.15rem;
            font-weight: 650;
            margin-bottom: 6px;
            color: var(--color-primary);
        }
        .brand-card__desc {
            font-size: 0.88rem;
            color: var(--color-text-light);
            flex: 1;
            line-height: 1.5;
        }
        .brand-card__link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--color-accent);
            margin-top: var(--space-sm);
            transition: gap var(--transition-fast);
        }
        .brand-card__link:hover {
            gap: 8px;
            color: var(--color-accent-hover);
        }
        @media screen and (max-width: 1024px) {
            .brand-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media screen and (max-width: 600px) {
            .brand-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
        }

        /* ============ 资讯列表 ============ */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--space-md);
        }
        .news-item {
            display: flex;
            gap: var(--space-md);
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: var(--space-md);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            align-items: flex-start;
        }
        .news-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--color-accent-light);
            transform: translateX(3px);
        }
        .news-item__img {
            width: 120px;
            height: 85px;
            object-fit: cover;
            border-radius: var(--radius-md);
            flex-shrink: 0;
        }
        .news-item__content {
            flex: 1;
            min-width: 0;
        }
        .news-item__date {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            letter-spacing: 0.03em;
            margin-bottom: 4px;
        }
        .news-item__title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item__title a {
            color: inherit;
        }
        .news-item__title a:hover {
            color: var(--color-accent);
        }
        @media screen and (max-width: 768px) {
            .news-list {
                grid-template-columns: 1fr;
            }
            .news-item__img {
                width: 90px;
                height: 65px;
            }
        }

        /* ============ 服务入口网格 ============ */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-md);
        }
        .service-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: var(--space-lg) var(--space-md);
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--color-accent);
        }
        .service-card__icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background-color: var(--color-accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--space-sm);
            font-size: 1.4rem;
            color: var(--color-accent);
            transition: all var(--transition-fast);
        }
        .service-card:hover .service-card__icon {
            background-color: var(--color-accent);
            color: #FFFFFF;
            transform: scale(1.08);
        }
        .service-card__title {
            font-weight: 650;
            font-size: 1rem;
            color: var(--color-primary);
            margin-bottom: 4px;
        }
        .service-card__desc {
            font-size: 0.8rem;
            color: var(--color-text-light);
        }
        @media screen and (max-width: 1024px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media screen and (max-width: 520px) {
            .service-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-sm);
            }
        }

        /* ============ 移动端体验板块 ============ */
        .mobile-showcase {
            display: flex;
            align-items: center;
            gap: var(--space-2xl);
            background: var(--color-bg-dark);
            border-radius: var(--radius-xl);
            padding: var(--space-2xl);
            color: #FFFFFF;
        }
        .mobile-showcase__img-wrap {
            flex-shrink: 0;
            width: 220px;
        }
        .mobile-showcase__img-wrap img {
            border-radius: var(--radius-lg);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
        }
        .mobile-showcase__text h3 {
            color: #FFFFFF;
            font-size: 1.6rem;
            margin-bottom: var(--space-sm);
        }
        .mobile-showcase__text p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: var(--space-md);
        }
        .mobile-showcase__features {
            list-style: none;
            padding: 0;
            margin: 0 0 var(--space-md);
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-sm);
        }
        .mobile-showcase__features li {
            background: rgba(255, 255, 255, 0.1);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.9);
            white-space: nowrap;
        }
        @media screen and (max-width: 768px) {
            .mobile-showcase {
                flex-direction: column;
                text-align: center;
                padding: var(--space-lg);
            }
            .mobile-showcase__img-wrap {
                width: 160px;
                margin: 0 auto;
            }
            .mobile-showcase__features {
                justify-content: center;
            }
        }

        /* ============ 品牌故事板块 ============ */
        .story-block {
            display: flex;
            gap: var(--space-2xl);
            align-items: center;
            background: var(--color-bg-white);
            border-radius: var(--radius-xl);
            padding: var(--space-2xl);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
        }
        .story-block__img {
            flex-shrink: 0;
            width: 45%;
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        .story-block__img img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }
        .story-block__text h3 {
            font-size: 1.5rem;
            margin-bottom: var(--space-sm);
        }
        .story-block__text p {
            color: var(--color-text-light);
            line-height: 1.7;
        }
        @media screen and (max-width: 768px) {
            .story-block {
                flex-direction: column;
                padding: var(--space-lg);
            }
            .story-block__img {
                width: 100%;
            }
            .story-block__img img {
                height: 200px;
            }
        }

        /* ============ 高端生活方式 ============ */
        .lifestyle-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-lg);
        }
        .lifestyle-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 3/4;
            cursor: pointer;
            box-shadow: var(--shadow-card);
        }
        .lifestyle-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .lifestyle-card:hover img {
            transform: scale(1.06);
        }
        .lifestyle-card__overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: var(--space-lg);
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.75));
            color: #FFFFFF;
        }
        .lifestyle-card__overlay h4 {
            color: #FFFFFF;
            font-size: 1.1rem;
            margin-bottom: 2px;
        }
        .lifestyle-card__overlay span {
            font-size: 0.8rem;
            opacity: 0.85;
        }
        @media screen and (max-width: 768px) {
            .lifestyle-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--space-md);
            }
        }
        @media screen and (max-width: 520px) {
            .lifestyle-grid {
                grid-template-columns: 1fr;
                aspect-ratio: auto;
            }
            .lifestyle-card {
                aspect-ratio: 16/10;
            }
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            margin-bottom: var(--space-sm);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-accent-light);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary);
            background: none;
            border: none;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: var(--space-sm);
            transition: background-color var(--transition-fast);
            font-family: var(--font-body);
            line-height: 1.4;
        }
        .faq-question:hover {
            background-color: #FAFAF8;
        }
        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--color-accent);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.6;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        /* ============ CTA 板块 ============ */
        .cta-section {
            background: var(--color-bg-dark);
            border-radius: var(--radius-xl);
            padding: var(--space-2xl);
            text-align: center;
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(200, 164, 92, 0.1);
            pointer-events: none;
        }
        .cta-section h2 {
            color: #FFFFFF;
            font-size: 2rem;
            margin-bottom: var(--space-sm);
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: var(--space-lg);
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn {
            position: relative;
            z-index: 1;
        }
        @media screen and (max-width: 768px) {
            .cta-section {
                padding: var(--space-lg);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.72);
            padding: var(--space-2xl) 0 var(--space-lg);
            font-size: 0.88rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--space-lg);
            margin-bottom: var(--space-xl);
        }
        .footer-col h4 {
            color: #FFFFFF;
            font-size: 1rem;
            font-weight: 650;
            margin-bottom: var(--space-md);
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.04em;
            margin-bottom: var(--space-sm);
            display: block;
        }
        .footer-disclaimer {
            border-top: 1px solid rgba(255, 255, 255, 0.13);
            padding-top: var(--space-md);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.6;
            text-align: center;
        }
        @media screen and (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-md);
            }
        }
        @media screen and (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ 滚动条美化 ============ */
        .off-canvas.position-left::-webkit-scrollbar {
            width: 4px;
        }
        .off-canvas.position-left::-webkit-scrollbar-track {
            background: transparent;
        }
        .off-canvas.position-left::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 3px;
        }

        /* ============ Foundation 覆盖 ============ */
        .off-canvas-wrapper-inner {
            overflow: visible;
        }
        .off-canvas-content {
            box-shadow: none;
        }
        @media screen and (min-width: 1024px) {
            .off-canvas.position-left.reveal-for-large~.off-canvas-content {
                margin-left: var(--nav-width);
            }
        }
        .off-canvas.position-left {
            background-color: var(--color-primary) !important;
        }

        /* ============ 工具类 ============ */
        .text-accent {
            color: var(--color-accent);
        }
        .text-muted {
            color: var(--color-text-light);
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .text-center {
            text-align: center;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

/* roulang page: category4 */
:root {
            --primary-deep: #0f172a;
            --primary-nav: #1e293b;
            --accent-gold: #c9a96e;
            --accent-soft: #decba4;
            --bg-page: #f9f7f4;
            --bg-card: #ffffff;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border-soft: #e7e0d8;
            --border-light: #f0ece5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --shadow-card: 0 8px 24px rgba(0,0,0,0.04), 0 2px 6px rgba(0,0,0,0.02);
            --shadow-elevated: 0 16px 32px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.02);
            --transition-base: all 0.25s ease;
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif;
            --nav-width: 260px;
            --mobile-header-height: 56px;
        }

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

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

        body {
            font-family: var(--font-sans);
            line-height: 1.6;
            color: var(--text-main);
            background-color: var(--bg-page);
            display: flex;
            min-height: 100vh;
            flex-direction: row;
            overflow-x: hidden;
        }

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

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

        button, input {
            font-family: inherit;
        }

        /* ---------- 移动顶部栏 ---------- */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--mobile-header-height);
            background-color: var(--primary-deep);
            z-index: 1100;
            align-items: center;
            justify-content: space-between;
            padding: 0 1.2rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }

        .mobile-header .brand-icon {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
            letter-spacing: 0.3px;
        }

        .menu-toggle {
            background: transparent;
            border: none;
            color: white;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.2rem;
            line-height: 1;
            transition: var(--transition-base);
        }

        .menu-toggle:hover {
            color: var(--accent-gold);
        }

        /* ---------- 侧边导航 (桌面固定左侧) ---------- */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: var(--primary-deep);
            color: #ffffff;
            display: flex;
            flex-direction: column;
            padding: 2rem 1.2rem;
            z-index: 1000;
            box-shadow: 2px 0 12px rgba(0,0,0,0.06);
            transition: left 0.3s ease;
        }

        .side-nav__logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.3rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: white;
            margin-bottom: 2.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

        .side-nav__logo i {
            color: var(--accent-gold);
            font-size: 1.5rem;
        }

        .side-nav__list {
            list-style: none;
            flex: 1;
        }

        .side-nav__list li {
            margin-bottom: 0.4rem;
        }

        .side-nav__list a {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            padding: 0.8rem 1rem;
            border-radius: var(--radius-sm);
            color: rgba(255,255,255,0.8);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition-base);
        }

        .side-nav__list a i {
            width: 1.2rem;
            text-align: center;
            font-size: 1rem;
        }

        .side-nav__list a:hover {
            background-color: rgba(255,255,255,0.08);
            color: white;
        }

        .side-nav__list a.active {
            background-color: rgba(201,169,110,0.2);
            color: var(--accent-gold);
            font-weight: 600;
        }

        .side-nav__cta {
            margin-top: 2rem;
        }

        .btn-side-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--accent-gold);
            color: var(--primary-deep);
            font-weight: 600;
            padding: 0.8rem 1.2rem;
            border-radius: 50px;
            font-size: 0.9rem;
            transition: var(--transition-base);
            text-align: center;
            border: none;
            cursor: pointer;
        }

        .btn-side-cta:hover {
            background: #decba4;
            transform: translateY(-1px);
        }

        /* ---------- 主内容区 ---------- */
        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            background-color: var(--bg-page);
            min-height: 100vh;
            padding-bottom: 2rem;
            width: 100%;
        }

        .section-container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        /* ---------- 页面标题区 ---------- */
        .page-hero {
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            color: white;
            padding: 3.5rem 2rem;
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            margin-bottom: 2.5rem;
        }

        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            letter-spacing: -0.5px;
            color: white;
        }

        .page-hero p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.7);
            max-width: 650px;
            margin-bottom: 0;
        }

        .breadcrumb {
            display: flex;
            gap: 0.5rem;
            align-items: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
            margin-bottom: 1rem;
        }

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

        .breadcrumb i {
            font-size: 0.7rem;
            color: rgba(255,255,255,0.4);
        }

        /* ---------- 数据卡片网格 ---------- */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin: 2.5rem 0;
        }

        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.8rem 1.2rem;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }

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

        .stat-icon {
            font-size: 2rem;
            color: var(--accent-gold);
            margin-bottom: 0.8rem;
        }

        .stat-value {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary-deep);
            line-height: 1.2;
            margin-bottom: 0.3rem;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .stat-change {
            font-size: 0.8rem;
            margin-top: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.2rem;
        }

        .stat-change.positive {
            color: #16a34a;
        }

        /* ---------- 双列布局区块 ---------- */
        .flex-row-block {
            display: flex;
            gap: 2rem;
            margin: 3rem 0;
            align-items: flex-start;
        }

        .flex-row-block .col-text {
            flex: 1;
        }

        .flex-row-block .col-image {
            flex: 1;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

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

        /* ---------- 报告卡片列表 ---------- */
        .insight-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.8rem;
            margin: 2rem 0;
        }

        .insight-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }

        .insight-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-elevated);
        }

        .insight-img {
            height: 160px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .insight-tag {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background: var(--accent-gold);
            color: var(--primary-deep);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.3rem 0.8rem;
            border-radius: 50px;
            text-transform: uppercase;
        }

        .insight-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .insight-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-main);
        }

        .insight-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 1rem;
            flex: 1;
        }

        .insight-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-soft);
            padding-top: 0.8rem;
        }

        /* ---------- 排行榜列表 ---------- */
        .ranking-list {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            box-shadow: var(--shadow-card);
            margin: 2.5rem 0;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.9rem 0;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition-base);
        }

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

        .rank-num {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-deep);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .rank-num.gold {
            background: var(--accent-gold);
            color: var(--primary-deep);
        }

        .rank-info h4 {
            font-size: 1rem;
            font-weight: 600;
            margin: 0;
        }

        .rank-info span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ---------- 渐变CTA ---------- */
        .cta-glow {
            background: linear-gradient(105deg, #1e293b 0%, #0f172a 60%);
            border-radius: var(--radius-lg);
            padding: 3rem 2.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            margin: 3rem 0;
            color: white;
        }

        .cta-glow h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .btn-outline-light {
            border: 2px solid var(--accent-gold);
            background: transparent;
            color: var(--accent-gold);
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition-base);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-outline-light:hover {
            background: var(--accent-gold);
            color: var(--primary-deep);
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background-color: var(--primary-deep);
            color: white;
            padding: 3rem 2rem 1.5rem;
            margin-top: 2rem;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            max-width: 1120px;
            margin: 0 auto;
        }

        .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: white;
            margin-bottom: 0.8rem;
            display: block;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.8rem;
            color: var(--accent-soft);
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 0.4rem;
        }

        .footer-col ul li a {
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--accent-gold);
        }

        .footer-disclaimer {
            max-width: 1120px;
            margin: 2rem auto 0;
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 1.5rem;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.5);
            text-align: center;
        }

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

        @media (max-width: 768px) {
            .mobile-header {
                display: flex;
            }

            .side-nav {
                left: -100%;
                width: 75%;
                max-width: 300px;
                transition: left 0.3s ease;
            }

            body.nav-open .side-nav {
                left: 0;
            }

            body.nav-open::after {
                content: '';
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                background: rgba(0,0,0,0.4);
                z-index: 999;
            }

            .main-content {
                margin-left: 0;
                padding-top: var(--mobile-header-height);
            }

            .page-hero {
                border-radius: 0;
                padding: 2.5rem 1.5rem;
            }

            .page-hero h1 {
                font-size: 2rem;
            }

            .flex-row-block {
                flex-direction: column;
            }

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

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

            .cta-glow {
                flex-direction: column;
                text-align: center;
            }

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

            .section-container {
                padding: 0 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }

            .page-hero h1 {
                font-size: 1.7rem;
            }
        }

/* roulang page: category2 */
/* ============ 设计变量 ============ */
        :root {
            --color-primary: #1a1a2e;
            --color-primary-light: #25253e;
            --color-accent: #c8a45c;
            --color-accent-hover: #d4b368;
            --color-accent-subtle: rgba(200, 164, 92, 0.1);
            --color-accent-border: rgba(200, 164, 92, 0.25);
            --color-bg: #fafaf8;
            --color-bg-alt: #f3f0ea;
            --color-bg-dark: #1a1a2e;
            --color-bg-card: #ffffff;
            --color-text: #2c2c2c;
            --color-text-secondary: #6b6b6b;
            --color-text-muted: #999999;
            --color-text-light: #c0c0c0;
            --color-text-on-dark: #e8e8e8;
            --color-border: #e5e2dc;
            --color-border-light: #f0ede8;
            --color-tag-bg: #f7f5f0;
            --color-tag-text: #8a7a5a;
            --color-success: #4a8c6f;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.16);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --side-nav-width: 260px;
            --topbar-height: 60px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --font-serif: 'Georgia', 'Noto Serif SC', 'STSong', 'Songti SC', serif;
        }

        /* ============ 基础 Reset & Base ============ */
        *,
        *::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: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

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

        button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 600;
            color: var(--color-primary);
        }

        /* ============ 页面整体布局 ============ */
        .app-layout {
            display: flex;
            min-height: 100vh;
        }

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

        .content-body {
            flex: 1;
        }

        /* ============ 左侧导航栏 (App Shell) ============ */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--side-nav-width);
            height: 100vh;
            background: var(--color-bg-dark);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            padding: 28px 0 20px;
            overflow-y: auto;
            overflow-x: hidden;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform var(--transition-base);
        }

        .side-nav__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 24px 24px;
            font-size: 1.15rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.5px;
            transition: opacity var(--transition-fast);
            white-space: nowrap;
        }

        .side-nav__logo i {
            color: var(--color-accent);
            font-size: 1.3rem;
        }

        .side-nav__logo:hover {
            opacity: 0.85;
        }

        .side-nav__list {
            flex: 1;
            padding: 0 12px;
        }

        .side-nav__list li {
            margin-bottom: 2px;
        }

        .side-nav__list a {
            display: flex;
            align-items: center;
            gap: 11px;
            padding: 11px 14px;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.93rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .side-nav__list a i {
            width: 18px;
            text-align: center;
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .side-nav__list a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
        }

        .side-nav__list a.active {
            background: var(--color-accent);
            color: #1a1a2e;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(200, 164, 92, 0.3);
        }

        .side-nav__list a.active i {
            color: #1a1a2e;
        }

        .side-nav__cta {
            padding: 16px 16px 0;
        }

        .btn-side-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 11px 16px;
            border-radius: var(--radius-md);
            background: transparent;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.9rem;
            border: 1.5px solid var(--color-accent-border);
            transition: all var(--transition-fast);
            cursor: pointer;
            letter-spacing: 0.4px;
        }

        .btn-side-cta:hover {
            background: var(--color-accent);
            color: #1a1a2e;
            border-color: var(--color-accent);
            box-shadow: 0 4px 16px rgba(200, 164, 92, 0.28);
        }

        .btn-side-cta:active {
            transform: scale(0.97);
            transition: transform 0.1s ease;
        }

        /* ============ 移动端顶部栏 ============ */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--topbar-height);
            background: var(--color-bg-dark);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-topbar__logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1rem;
            color: #ffffff;
            letter-spacing: 0.4px;
        }

        .mobile-topbar__logo i {
            color: var(--color-accent);
            font-size: 1.1rem;
        }

        .btn-hamburger {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            color: #ffffff;
            font-size: 1.3rem;
            transition: background var(--transition-fast);
        }

        .btn-hamburger:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .btn-hamburger:active {
            background: rgba(255, 255, 255, 0.14);
        }

        /* 侧边栏遮罩 */
        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 998;
            transition: opacity var(--transition-base);
        }

        .nav-overlay.show {
            display: block;
        }

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

        .section-container--wide {
            max-width: 1200px;
        }

        /* ============ 页面Banner区 ============ */
        .page-banner {
            position: relative;
            background: var(--color-bg-dark);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center 40%;
            background-repeat: no-repeat;
            padding: 70px 0 60px;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.88) 0%, rgba(26, 26, 46, 0.6) 55%, rgba(26, 26, 46, 0.82) 100%);
            z-index: 0;
        }

        .page-banner__content {
            position: relative;
            z-index: 1;
        }

        .page-banner__breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-light);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .page-banner__breadcrumb a {
            color: var(--color-accent);
            transition: color var(--transition-fast);
        }

        .page-banner__breadcrumb a:hover {
            color: var(--color-accent-hover);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .page-banner__breadcrumb span {
            color: var(--color-text-light);
        }

        .page-banner__title {
            font-size: 2.5rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.6px;
            margin-bottom: 10px;
            font-family: var(--font-serif);
        }

        .page-banner__desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 620px;
            line-height: 1.7;
        }

        /* ============ 板块间距 ============ */
        .section {
            padding: 60px 0;
        }

        .section--sm {
            padding: 40px 0;
        }

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

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

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

        .section-header__title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.4px;
            margin-bottom: 6px;
            font-family: var(--font-serif);
        }

        .section-header__subtitle {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* ============ 筛选标签栏 ============ */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 36px;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 24px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-tag-text);
            background: var(--color-tag-bg);
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition-fast);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .filter-tag:hover {
            background: var(--color-accent-subtle);
            border-color: var(--color-accent-border);
            color: #5c4a2a;
        }

        .filter-tag--active {
            background: var(--color-accent);
            color: #1a1a2e;
            font-weight: 600;
            border-color: var(--color-accent);
            box-shadow: 0 3px 12px rgba(200, 164, 92, 0.25);
        }

        .filter-tag--active:hover {
            background: var(--color-accent-hover);
            color: #1a1a2e;
            border-color: var(--color-accent-hover);
        }

        .filter-tag:active {
            transform: scale(0.96);
        }

        /* ============ 资讯卡片网格 ============ */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

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

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

        .news-card__image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--color-bg-alt);
        }

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

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

        .news-card__badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--color-accent);
            color: #1a1a2e;
            letter-spacing: 0.5px;
            z-index: 1;
        }

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

        .news-card__meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-bottom: 10px;
        }

        .news-card__meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .news-card__title {
            font-size: 1.12rem;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.45;
            letter-spacing: 0.3px;
            transition: color var(--transition-fast);
        }

        .news-card:hover .news-card__title {
            color: #5c4a2a;
        }

        .news-card__excerpt {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }

        .news-card__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-accent);
            transition: all var(--transition-fast);
            letter-spacing: 0.3px;
            margin-top: auto;
            align-self: flex-start;
        }

        .news-card__link i {
            transition: transform var(--transition-fast);
            font-size: 0.75rem;
        }

        .news-card__link:hover {
            color: #5c4a2a;
        }

        .news-card__link:hover i {
            transform: translateX(4px);
        }

        /* 精选大卡片 */
        .news-card--featured {
            grid-column: 1 / -1;
            flex-direction: row;
        }

        .news-card--featured .news-card__image {
            width: 48%;
            aspect-ratio: auto;
            min-height: 300px;
            flex-shrink: 0;
        }

        .news-card--featured .news-card__body {
            padding: 28px 24px 24px;
            justify-content: center;
        }

        .news-card--featured .news-card__title {
            font-size: 1.4rem;
        }

        /* ============ 侧边热门资讯 ============ */
        .hot-list {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            padding: 24px 20px;
            box-shadow: var(--shadow-xs);
        }

        .hot-list__title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--color-accent);
            display: inline-block;
            letter-spacing: 0.4px;
        }

        .hot-list__item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }

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

        .hot-list__item:hover {
            padding-left: 6px;
        }

        .hot-list__rank {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-accent-subtle);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
        }

        .hot-list__rank--top {
            background: var(--color-accent);
            color: #1a1a2e;
        }

        .hot-list__text a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text);
            line-height: 1.4;
            transition: color var(--transition-fast);
        }

        .hot-list__text a:hover {
            color: #5c4a2a;
        }

        .hot-list__text small {
            display: block;
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 3px;
        }

        /* ============ 双栏布局 ============ */
        .two-col-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            align-items: start;
        }

        /* ============ 订阅CTA区 ============ */
        .cta-subscribe {
            background: var(--color-bg-dark);
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            padding: 50px 40px;
            text-align: center;
        }

        .cta-subscribe::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(26, 26, 46, 0.82);
            z-index: 0;
        }

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

        .cta-subscribe__icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #1a1a2e;
            font-size: 1.4rem;
            margin-bottom: 16px;
        }

        .cta-subscribe__title {
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 8px;
            letter-spacing: 0.5px;
            font-family: var(--font-serif);
        }

        .cta-subscribe__desc {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            margin-bottom: 24px;
            line-height: 1.6;
        }

        .cta-subscribe__form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-subscribe__input {
            flex: 1;
            min-width: 220px;
            padding: 12px 18px;
            border-radius: var(--radius-md);
            border: 1.5px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
            font-size: 0.93rem;
            transition: all var(--transition-fast);
        }

        .cta-subscribe__input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .cta-subscribe__input:focus {
            outline: none;
            border-color: var(--color-accent);
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 4px rgba(200, 164, 92, 0.12);
        }

        .btn-subscribe {
            padding: 12px 28px;
            border-radius: var(--radius-md);
            background: var(--color-accent);
            color: #1a1a2e;
            font-weight: 700;
            font-size: 0.93rem;
            letter-spacing: 0.4px;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            border: none;
        }

        .btn-subscribe:hover {
            background: var(--color-accent-hover);
            box-shadow: 0 6px 22px rgba(200, 164, 92, 0.35);
            transform: translateY(-1px);
        }

        .btn-subscribe:active {
            transform: scale(0.96);
            transition: transform 0.1s ease;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 28px;
            margin-top: auto;
        }

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

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            display: block;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            transition: all var(--transition-fast);
            display: inline-block;
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
            transform: translateX(3px);
        }

        .footer-disclaimer {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.7;
            text-align: center;
        }

        /* ============ 响应式断点 ============ */

        /* 桌面 1024px+ */
        @media (min-width: 1025px) {
            .side-nav {
                transform: translateX(0) !important;
            }
            .nav-overlay {
                display: none !important;
            }
            .mobile-topbar {
                display: none !important;
            }
            .main-content {
                margin-left: var(--side-nav-width);
            }
        }

        /* 平板及以下 1024px */
        @media (max-width: 1024px) {
            :root {
                --side-nav-width: 250px;
            }
            .side-nav {
                transform: translateX(-100%);
                box-shadow: var(--shadow-xl);
                z-index: 1001;
            }
            .side-nav.open {
                transform: translateX(0);
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: var(--topbar-height);
            }
            .nav-overlay.show {
                display: block;
            }
            .page-banner {
                padding: 50px 0 40px;
            }
            .page-banner__title {
                font-size: 2rem;
            }
            .section {
                padding: 44px 0;
            }
            .section-container {
                padding: 0 20px;
            }
            .news-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .two-col-layout {
                grid-template-columns: 1fr;
            }
            .hot-list {
                order: -1;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .news-card--featured {
                flex-direction: column;
            }
            .news-card--featured .news-card__image {
                width: 100%;
                min-height: 220px;
            }
        }

        /* 手机 768px */
        @media (max-width: 768px) {
            .page-banner__title {
                font-size: 1.6rem;
            }
            .page-banner__desc {
                font-size: 0.9rem;
            }
            .section {
                padding: 36px 0;
            }
            .section-container {
                padding: 0 16px;
            }
            .news-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .filter-tags {
                gap: 7px;
            }
            .filter-tag {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            .cta-subscribe {
                padding: 34px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-subscribe__title {
                font-size: 1.25rem;
            }
            .cta-subscribe__form {
                flex-direction: column;
                align-items: center;
            }
            .cta-subscribe__input {
                width: 100%;
                min-width: auto;
            }
            .btn-subscribe {
                width: 100%;
                text-align: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section-header__title {
                font-size: 1.4rem;
            }
            .news-card__title {
                font-size: 1rem;
            }
            .news-card--featured .news-card__title {
                font-size: 1.15rem;
            }
            .news-card--featured .news-card__image {
                min-height: 180px;
            }
        }

        /* 小手机 520px */
        @media (max-width: 520px) {
            .page-banner {
                padding: 38px 0 30px;
            }
            .page-banner__title {
                font-size: 1.35rem;
            }
            .page-banner__breadcrumb {
                font-size: 0.78rem;
            }
            .section {
                padding: 28px 0;
            }
            .section-container {
                padding: 0 12px;
            }
            .news-grid {
                gap: 14px;
            }
            .news-card__body {
                padding: 16px 14px 14px;
            }
            .cta-subscribe {
                padding: 26px 14px;
            }
            .cta-subscribe__title {
                font-size: 1.15rem;
            }
            .hot-list {
                padding: 16px 14px;
            }
            .btn-side-cta {
                font-size: 0.82rem;
                padding: 9px 12px;
            }
        }

        /* ============ Foundation 覆盖 ============ */
        .grid-x {
            margin: 0;
        }
        .cell {
            padding: 0;
        }
        .foundation .grid-container {
            padding: 0;
        }

/* roulang page: category3 */
/* ========================================
            设计变量体系
        ======================================== */
        :root {
            --color-primary: #1a1a28;
            --color-primary-light: #252538;
            --color-accent: #c8a45c;
            --color-accent-hover: #d9b76d;
            --color-accent-subtle: rgba(200, 164, 92, 0.12);
            --color-bg: #f9f8f5;
            --color-bg-alt: #f3f1ec;
            --color-surface: #ffffff;
            --color-text: #2a2a2e;
            --color-text-strong: #1a1a1f;
            --color-muted: #6e6e75;
            --color-muted-light: #9a9aa2;
            --color-border: #e4e1da;
            --color-border-light: #efede8;
            --color-success: #3b8c5e;
            --color-warning: #d4a24e;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.09);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.13);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.16);
            --space-xs: 0.35rem;
            --space-sm: 0.7rem;
            --space-md: 1.2rem;
            --space-lg: 2rem;
            --space-xl: 3rem;
            --space-2xl: 4.5rem;
            --space-3xl: 6rem;
            --nav-width: 250px;
            --nav-collapsed-width: 0px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-heading: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
        }

        /* ========================================
            基础 Reset & Base
        ======================================== */
        *,
        *::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: var(--font-body);
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            display: flex;
            min-height: 100vh;
            overflow-x: hidden;
            position: relative;
        }

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

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

        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            line-height: 1.3;
            color: var(--color-text-strong);
            font-weight: 600;
        }

        /* ========================================
            布局：App Shell - 左侧导航 + 右侧主内容
        ======================================== */
        .app-shell {
            display: flex;
            width: 100%;
            min-height: 100vh;
        }

        /* ========================================
            侧边导航栏
        ======================================== */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--color-primary);
            color: #e0dfe8;
            display: flex;
            flex-direction: column;
            z-index: 100;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            padding: var(--space-xl) var(--space-lg) var(--space-lg);
            overflow-y: auto;
            box-shadow: 2px 0 30px rgba(0, 0, 0, 0.15);
        }

        .side-nav__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
            padding-bottom: var(--space-lg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            margin-bottom: var(--space-lg);
            transition: color var(--transition-fast);
            font-family: var(--font-heading);
        }
        .side-nav__logo i {
            color: var(--color-accent);
            font-size: 1.35rem;
            transition: transform var(--transition-slow);
        }
        .side-nav__logo:hover i {
            transform: rotate(-15deg) scale(1.1);
        }
        .side-nav__logo:hover {
            color: #ffffff;
        }

        .side-nav__list {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .side-nav__list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-md);
            color: #c5c4d2;
            font-size: 0.93rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.015em;
        }
        .side-nav__list li a i {
            width: 20px;
            text-align: center;
            font-size: 0.9rem;
            transition: transform var(--transition-fast);
        }
        .side-nav__list li a:hover {
            background: rgba(255, 255, 255, 0.07);
            color: #ffffff;
            transform: translateX(3px);
        }
        .side-nav__list li a:hover i {
            transform: scale(1.15);
        }
        .side-nav__list li a.active {
            background: var(--color-accent-subtle);
            color: var(--color-accent);
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--color-accent);
        }
        .side-nav__list li a.active i {
            color: var(--color-accent);
        }

        .side-nav__cta {
            margin-top: auto;
            padding-top: var(--space-lg);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .btn-side-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 18px;
            border-radius: var(--radius-md);
            background: var(--color-accent);
            color: #1a1a1f;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-align: center;
        }
        .btn-side-cta:hover {
            background: var(--color-accent-hover);
            color: #1a1a1f;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 164, 92, 0.3);
        }
        .btn-side-cta:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(200, 164, 92, 0.25);
        }

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

        /* ========================================
            移动端顶部栏
        ======================================== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--color-primary);
            color: #fff;
            z-index: 99;
            align-items: center;
            padding: 0 var(--space-md);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.2);
        }
        .mobile-topbar__logo {
            font-weight: 700;
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-heading);
        }
        .mobile-topbar__logo i {
            color: var(--color-accent);
        }
        .mobile-topbar__toggle {
            margin-left: auto;
            color: #fff;
            font-size: 1.4rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-topbar__toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* 遮罩层 */
        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 98;
            transition: opacity var(--transition-base);
        }
        .nav-overlay.active {
            display: block;
        }

        /* ========================================
            板块容器
        ======================================== */
        .section-container {
            max-width: 1040px;
            margin: 0 auto;
            padding: 0 var(--space-lg);
            width: 100%;
        }
        .section-container--fluid {
            max-width: none;
            padding: 0;
        }

        /* ========================================
            Banner / Hero 内页
        ======================================== */
        .page-banner {
            position: relative;
            padding: var(--space-3xl) var(--space-lg) var(--space-2xl);
            background-size: cover;
            background-position: center 35%;
            background-repeat: no-repeat;
            color: #ffffff;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: flex-end;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(26, 26, 40, 0.35) 0%,
                    rgba(26, 26, 40, 0.65) 55%,
                    rgba(26, 26, 40, 0.9) 100%);
            z-index: 1;
        }
        .page-banner__content {
            position: relative;
            z-index: 2;
            max-width: 1040px;
            margin: 0 auto;
            width: 100%;
            padding: 0 var(--space-lg);
        }
        .page-banner__tag {
            display: inline-block;
            background: var(--color-accent);
            color: #1a1a1f;
            font-weight: 600;
            font-size: 0.8rem;
            letter-spacing: 0.06em;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: var(--space-md);
            text-transform: uppercase;
        }
        .page-banner__title {
            font-size: 2.8rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
            margin-bottom: var(--space-sm);
            line-height: 1.15;
        }
        .page-banner__subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            line-height: 1.6;
        }

        /* ========================================
            板块通用间距
        ======================================== */
        .section {
            padding: var(--space-2xl) 0;
        }
        .section--alt {
            background: var(--color-bg-alt);
        }
        .section--dark {
            background: var(--color-primary);
            color: #e0dfe8;
        }
        .section--dark h2,
        .section--dark h3 {
            color: #ffffff;
        }
        .section--dark .section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--space-xl);
        }
        .section-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.07em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: var(--space-xs);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: var(--space-sm);
            letter-spacing: 0.015em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-muted);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* ========================================
            服务概览卡片
        ======================================== */
        .service-overview-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-lg);
        }
        .service-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: var(--space-xl) var(--space-lg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            border: 1px solid var(--color-border-light);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .service-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--color-accent);
            transform: scaleX(0);
            transform-origin: center;
            transition: transform var(--transition-base);
            border-radius: 0 0 var(--radius-sm) var(--radius-sm);
        }
        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .service-card:hover::after {
            transform: scaleX(1);
        }
        .service-card__icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--color-accent-subtle);
            color: var(--color-accent);
            font-size: 1.5rem;
            margin-bottom: var(--space-md);
            transition: all var(--transition-base);
        }
        .service-card:hover .service-card__icon {
            background: var(--color-accent);
            color: #fff;
            transform: scale(1.08);
        }
        .service-card h3 {
            font-size: 1.15rem;
            margin-bottom: var(--space-sm);
            font-weight: 600;
        }
        .service-card p {
            color: var(--color-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* ========================================
            图片服务卡片（带封面图）
        ======================================== */
        .image-service-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--space-lg);
        }
        .image-service-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }
        .image-service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .image-service-card__img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .image-service-card__body {
            padding: var(--space-lg);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .image-service-card__body h3 {
            font-size: 1.1rem;
            margin-bottom: var(--space-xs);
            font-weight: 600;
        }
        .image-service-card__body p {
            color: var(--color-muted);
            font-size: 0.88rem;
            line-height: 1.6;
            flex: 1;
            margin-bottom: var(--space-md);
        }
        .image-service-card__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.9rem;
            transition: gap var(--transition-fast);
        }
        .image-service-card__link:hover {
            gap: 10px;
            color: var(--color-accent-hover);
        }
        .image-service-card__link i {
            font-size: 0.75rem;
        }

        /* ========================================
            流程步骤
        ======================================== */
        .steps-list {
            display: flex;
            gap: var(--space-lg);
            counter-reset: step;
            flex-wrap: wrap;
        }
        .step-item {
            flex: 1;
            min-width: 200px;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: var(--space-xl) var(--space-lg);
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            position: relative;
            text-align: center;
            transition: all var(--transition-base);
            counter-increment: step;
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .step-item__number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-accent);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: var(--space-md);
            font-family: var(--font-heading);
        }
        .step-item h4 {
            font-size: 1rem;
            margin-bottom: var(--space-xs);
            font-weight: 600;
        }
        .step-item p {
            color: var(--color-muted);
            font-size: 0.85rem;
            line-height: 1.6;
        }

        /* ========================================
            内容列表
        ======================================== */
        .resource-list {
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }
        .resource-item {
            display: flex;
            align-items: center;
            gap: var(--space-md);
            background: var(--color-surface);
            padding: var(--space-md) var(--space-lg);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .resource-item:hover {
            background: var(--color-bg-alt);
            border-color: var(--color-border);
            box-shadow: var(--shadow-xs);
        }
        .resource-item__icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--color-accent-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1rem;
        }
        .resource-item__info {
            flex: 1;
        }
        .resource-item__info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .resource-item__info span {
            font-size: 0.8rem;
            color: var(--color-muted-light);
        }
        .resource-item__arrow {
            color: var(--color-muted-light);
            transition: all var(--transition-fast);
        }
        .resource-item:hover .resource-item__arrow {
            color: var(--color-accent);
            transform: translateX(3px);
        }

        /* ========================================
            FAQ Accordion
        ======================================== */
        .faq-accordion {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            margin-bottom: var(--space-sm);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: box-shadow var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-xs);
        }
        .faq-item__trigger {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--space-md) var(--space-lg);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text-strong);
            text-align: left;
            background: transparent;
            border: none;
            cursor: pointer;
            transition: color var(--transition-fast);
            gap: var(--space-md);
        }
        .faq-item__trigger:hover {
            color: var(--color-accent);
        }
        .faq-item__trigger i {
            font-size: 0.8rem;
            color: var(--color-muted-light);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.open .faq-item__trigger i {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-item__content {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 var(--space-lg);
            color: var(--color-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-item__content {
            max-height: 300px;
            padding: 0 var(--space-lg) var(--space-lg);
        }

        /* ========================================
            CTA 区域
        ======================================== */
        .cta-section {
            background: var(--color-primary);
            color: #ffffff;
            text-align: center;
            padding: var(--space-2xl) var(--space-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(200, 164, 92, 0.08);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(200, 164, 92, 0.06);
            pointer-events: none;
        }
        .cta-section__inner {
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto;
        }
        .cta-section h2 {
            color: #ffffff;
            font-size: 1.8rem;
            margin-bottom: var(--space-sm);
            font-weight: 700;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: var(--space-lg);
            line-height: 1.6;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 30px;
            background: var(--color-accent);
            color: #1a1a1f;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            box-shadow: 0 6px 20px rgba(200, 164, 92, 0.3);
        }
        .btn-cta:hover {
            background: var(--color-accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(200, 164, 92, 0.4);
            color: #1a1a1f;
        }
        .btn-cta:active {
            transform: translateY(0);
        }

        /* ========================================
            页脚
        ======================================== */
        .site-footer {
            background: #14141f;
            color: #c5c4d2;
            padding: var(--space-2xl) 0 var(--space-lg);
            font-size: 0.88rem;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: var(--space-xl);
            margin-bottom: var(--space-xl);
        }
        .footer-brand {
            font-weight: 700;
            font-size: 1.1rem;
            color: #ffffff;
            display: block;
            margin-bottom: var(--space-sm);
            font-family: var(--font-heading);
            letter-spacing: 0.02em;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: var(--space-sm);
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-disclaimer {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--space-lg);
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.8rem;
            line-height: 1.6;
        }

        /* ========================================
            响应式断点
        ======================================== */

        /* 平板及较小桌面 (≤1024px) */
        @media (max-width: 1024px) {
            :root {
                --nav-width: 230px;
            }
            .page-banner__title {
                font-size: 2.2rem;
            }
            .service-overview-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--space-md);
            }
            .image-service-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-md);
            }
            .steps-list {
                gap: var(--space-md);
            }
            .step-item {
                min-width: 160px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-lg);
            }
            .section-title {
                font-size: 1.7rem;
            }
            .page-banner {
                min-height: 280px;
                padding: var(--space-2xl) var(--space-lg) var(--space-xl);
            }
        }

        /* 移动端 (≤768px) */
        @media (max-width: 768px) {
            :root {
                --nav-width: 260px;
            }
            .side-nav {
                transform: translateX(-100%);
                box-shadow: none;
                width: 260px;
            }
            .side-nav.open {
                transform: translateX(0);
                box-shadow: 4px 0 40px rgba(0, 0, 0, 0.35);
            }
            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }
            .mobile-topbar {
                display: flex;
            }
            .nav-overlay.active {
                display: block;
            }
            .page-banner {
                min-height: 240px;
                padding: var(--space-xl) var(--space-md);
            }
            .page-banner__title {
                font-size: 1.7rem;
            }
            .page-banner__subtitle {
                font-size: 0.9rem;
            }
            .page-banner__content {
                padding: 0 var(--space-md);
            }
            .section-container {
                padding: 0 var(--space-md);
            }
            .section {
                padding: var(--space-xl) 0;
            }
            .service-overview-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
            .image-service-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
            .image-service-card__img {
                height: 180px;
            }
            .steps-list {
                flex-direction: column;
                gap: var(--space-md);
            }
            .step-item {
                min-width: unset;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-md);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .resource-item {
                flex-wrap: wrap;
                padding: var(--space-sm) var(--space-md);
            }
            .faq-item__trigger {
                padding: var(--space-sm) var(--space-md);
                font-size: 0.9rem;
            }
        }

        /* 小型手机 (≤520px) */
        @media (max-width: 520px) {
            .page-banner__title {
                font-size: 1.4rem;
            }
            .page-banner {
                min-height: 200px;
                padding: var(--space-lg) var(--space-sm);
            }
            .page-banner__content {
                padding: 0 var(--space-sm);
            }
            .section-container {
                padding: 0 var(--space-sm);
            }
            .section {
                padding: var(--space-lg) 0;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
            .service-card {
                padding: var(--space-lg) var(--space-md);
            }
            .image-service-card__img {
                height: 150px;
            }
            .side-nav {
                width: 240px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0d1117;
            --color-primary-light: #1a2332;
            --color-accent: #c9a96e;
            --color-accent-hover: #b8944e;
            --color-accent-light: #e8d5b0;
            --color-bg: #f8f7f4;
            --color-bg-alt: #f0ede8;
            --color-surface: #ffffff;
            --color-text: #1a1a1a;
            --color-text-secondary: #5c5c5c;
            --color-text-muted: #8a8a8a;
            --color-border: #e5e2dc;
            --color-border-light: #f0ede8;
            --color-tag-bg: #f5f2ec;
            --color-tag-text: #7a6e5c;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.12);
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;
            --spacing-4xl: 5rem;
            --nav-width: 260px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-heading: 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, sans-serif;
        }

        *,
        *::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: var(--font-body);
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            display: grid;
            grid-template-columns: var(--nav-width) 1fr;
            grid-template-rows: auto;
            min-height: 100vh;
            overflow-x: hidden;
            transition: grid-template-columns var(--transition-normal);
        }

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

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

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

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

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

        button:focus-visible,
        a:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            line-height: 1.25;
            color: var(--color-primary);
            margin-bottom: 0.5em;
        }

        h1 {
            font-size: 2.4rem;
            font-weight: 700;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.8rem;
            font-weight: 650;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 600;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ============ SIDE NAVIGATION ============ */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--color-primary);
            color: #ffffff;
            display: flex;
            flex-direction: column;
            z-index: 100;
            padding: var(--spacing-xl) var(--spacing-lg);
            overflow-y: auto;
            overflow-x: hidden;
            transition: transform var(--transition-slow), box-shadow var(--transition-normal);
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.18);
        }

        .side-nav__logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff !important;
            letter-spacing: 0.03em;
            padding-bottom: var(--spacing-xl);
            margin-bottom: var(--spacing-lg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .side-nav__logo i {
            color: var(--color-accent);
            font-size: 1.4rem;
            transition: transform var(--transition-fast);
        }
        .side-nav__logo:hover i {
            transform: scale(1.12);
        }
        .side-nav__logo:hover {
            color: var(--color-accent-light) !important;
        }

        .side-nav__list {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .side-nav__list li a {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            padding: 0.7rem 0.85rem;
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.78);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .side-nav__list li a i {
            width: 1.25rem;
            text-align: center;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }
        .side-nav__list li a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
        }
        .side-nav__list li a:hover i {
            color: var(--color-accent);
        }
        .side-nav__list li a.active {
            background: rgba(201, 169, 110, 0.18);
            color: #ffffff;
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--color-accent);
        }
        .side-nav__list li a.active i {
            color: var(--color-accent);
        }

        .side-nav__cta {
            padding-top: var(--spacing-lg);
            margin-top: var(--spacing-md);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .btn-side-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.7rem 1.2rem;
            border-radius: var(--radius-md);
            background: var(--color-accent);
            color: #ffffff !important;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            white-space: nowrap;
            text-align: center;
        }
        .btn-side-cta:hover {
            background: var(--color-accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(201, 169, 110, 0.35);
            color: #ffffff !important;
        }
        .btn-side-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(201, 169, 110, 0.3);
        }

        /* ============ MOBILE NAV TOGGLE ============ */
        .mobile-nav-toggle {
            display: none;
            position: fixed;
            top: 14px;
            left: 14px;
            z-index: 200;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #ffffff;
            font-size: 1.2rem;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-fast);
            border: 2px solid rgba(255, 255, 255, 0.15);
        }
        .mobile-nav-toggle:hover {
            background: var(--color-primary-light);
            box-shadow: var(--shadow-lg);
        }
        .mobile-nav-toggle:active {
            transform: scale(0.94);
        }

        .side-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 99;
            opacity: 0;
            transition: opacity var(--transition-normal);
            pointer-events: none;
        }
        .side-nav-overlay.is-visible {
            opacity: 1;
            pointer-events: auto;
        }

        /* ============ MAIN CONTENT AREA ============ */
        .main-content {
            grid-column: 2;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .section-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 var(--spacing-xl);
            width: 100%;
        }

        /* ============ CATEGORY BANNER ============ */
        .category-banner {
            background: var(--color-primary);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            padding: var(--spacing-4xl) 0 var(--spacing-3xl);
            color: #ffffff;
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg,
                    rgba(13, 17, 23, 0.88) 0%,
                    rgba(13, 17, 23, 0.72) 40%,
                    rgba(13, 17, 23, 0.55) 100%);
            z-index: 1;
        }
        .category-banner .section-container {
            position: relative;
            z-index: 2;
        }
        .category-banner__breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: var(--spacing-lg);
            flex-wrap: wrap;
        }
        .category-banner__breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            transition: color var(--transition-fast);
        }
        .category-banner__breadcrumb a:hover {
            color: var(--color-accent);
        }
        .category-banner__breadcrumb span {
            color: var(--color-accent-light);
        }
        .category-banner h1 {
            color: #ffffff;
            font-size: 2.8rem;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.02em;
        }
        .category-banner__subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 600px;
            line-height: 1.6;
        }
        .category-banner__stats {
            display: flex;
            gap: var(--spacing-2xl);
            margin-top: var(--spacing-xl);
            flex-wrap: wrap;
        }
        .category-banner__stat {
            text-align: left;
        }
        .category-banner__stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-accent);
            font-family: var(--font-heading);
            letter-spacing: -0.01em;
        }
        .category-banner__stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 2px;
        }

        /* ============ SECTIONS ============ */
        .section {
            padding: var(--spacing-3xl) 0;
        }
        .section--alt {
            background: var(--color-bg-alt);
        }
        .section--no-top {
            padding-top: 0;
        }
        .section__header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: var(--spacing-xl);
            flex-wrap: wrap;
            gap: var(--spacing-md);
        }
        .section__title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            position: relative;
            padding-bottom: 0.5rem;
        }
        .section__title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 48px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .section__link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-accent);
            display: flex;
            align-items: center;
            gap: 0.4rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .section__link:hover {
            color: var(--color-accent-hover);
            gap: 0.6rem;
        }
        .section__link i {
            font-size: 0.75rem;
            transition: transform var(--transition-fast);
        }
        .section__link:hover i {
            transform: translateX(3px);
        }

        /* ============ FEATURED ARTICLE ============ */
        .featured-article {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: flex-end;
            background: var(--color-primary);
            box-shadow: var(--shadow-lg);
            transition: box-shadow var(--transition-normal), transform var(--transition-normal);
        }
        .featured-article:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-2px);
        }
        .featured-article__bg {
            position: absolute;
            inset: 0;
            object-fit: cover;
            width: 100%;
            height: 100%;
            transition: transform var(--transition-slow);
        }
        .featured-article:hover .featured-article__bg {
            transform: scale(1.04);
        }
        .featured-article__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top,
                    rgba(13, 17, 23, 0.9) 0%,
                    rgba(13, 17, 23, 0.4) 45%,
                    rgba(13, 17, 23, 0.1) 100%);
            z-index: 1;
        }
        .featured-article__content {
            position: relative;
            z-index: 3;
            padding: var(--spacing-2xl) var(--spacing-xl);
            max-width: 650px;
        }
        .featured-article__tag {
            display: inline-block;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            background: var(--color-accent);
            color: #ffffff;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: var(--spacing-sm);
        }
        .featured-article__title {
            font-size: 1.8rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
            letter-spacing: -0.01em;
        }
        .featured-article__excerpt {
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: var(--spacing-md);
        }
        .featured-article__meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
            flex-wrap: wrap;
        }
        .featured-article__meta span {
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }

        /* ============ ARTICLE CARDS ============ */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-xl);
            margin-top: var(--spacing-lg);
        }
        .article-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-normal);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .article-card__image-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--color-bg-alt);
        }
        .article-card__image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .article-card:hover .article-card__image {
            transform: scale(1.06);
        }
        .article-card__tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 0.25rem 0.7rem;
            border-radius: 16px;
            background: rgba(13, 17, 23, 0.8);
            color: var(--color-accent-light);
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            backdrop-filter: blur(4px);
            z-index: 2;
        }
        .article-card__body {
            padding: var(--spacing-lg);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card__title {
            font-size: 1.08rem;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: var(--spacing-xs);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }
        .article-card:hover .article-card__title {
            color: var(--color-accent-hover);
        }
        .article-card__excerpt {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.55;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: var(--spacing-sm);
        }
        .article-card__footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--color-text-muted);
            padding-top: var(--spacing-sm);
            border-top: 1px solid var(--color-border-light);
        }
        .article-card__date {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        /* ============ TAG CLOUD ============ */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-top: var(--spacing-md);
        }
        .tag-cloud__item {
            padding: 0.45rem 1rem;
            border-radius: 22px;
            background: var(--color-tag-bg);
            color: var(--color-tag-text);
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .tag-cloud__item:hover {
            background: var(--color-accent);
            color: #ffffff;
            border-color: var(--color-accent);
            box-shadow: var(--shadow-sm);
        }
        .tag-cloud__item--active {
            background: var(--color-accent);
            color: #ffffff;
            border-color: var(--color-accent);
            font-weight: 600;
        }

        /* ============ NEWSLETTER CTA ============ */
        .newsletter-cta {
            background: var(--color-primary);
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            padding: var(--spacing-3xl) var(--spacing-xl);
            text-align: center;
            box-shadow: var(--shadow-lg);
        }
        .newsletter-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(13, 17, 23, 0.82);
            z-index: 1;
        }
        .newsletter-cta__content {
            position: relative;
            z-index: 2;
            max-width: 550px;
            margin: 0 auto;
        }
        .newsletter-cta h2 {
            color: #ffffff;
            font-size: 1.7rem;
            margin-bottom: var(--spacing-sm);
        }
        .newsletter-cta p {
            color: rgba(255, 255, 255, 0.72);
            margin-bottom: var(--spacing-lg);
            font-size: 0.95rem;
        }
        .newsletter-form {
            display: flex;
            gap: 0.6rem;
            max-width: 460px;
            margin: 0 auto;
        }
        .newsletter-form input {
            flex: 1;
            padding: 0.8rem 1.1rem;
            border-radius: var(--radius-md);
            border: 2px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #ffffff;
            font-size: 0.9rem;
            outline: none;
            transition: all var(--transition-fast);
            backdrop-filter: blur(2px);
        }
        .newsletter-form input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .newsletter-form input:focus {
            border-color: var(--color-accent);
            background: rgba(255, 255, 255, 0.16);
            box-shadow: 0 0 0 4px rgba(201, 169, 110, 0.15);
        }
        .btn-newsletter {
            padding: 0.8rem 1.6rem;
            border-radius: var(--radius-md);
            background: var(--color-accent);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }
        .btn-newsletter:hover {
            background: var(--color-accent-hover);
            box-shadow: 0 6px 20px rgba(201, 169, 110, 0.4);
            transform: translateY(-1px);
        }
        .btn-newsletter:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(201, 169, 110, 0.3);
        }

        /* ============ PAGINATION ============ */
        .pagination-bar {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
            margin-top: var(--spacing-2xl);
            flex-wrap: wrap;
        }
        .pagination-bar__btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 500;
            font-size: 0.9rem;
            background: var(--color-surface);
            color: var(--color-text);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .pagination-bar__btn:hover {
            background: var(--color-accent);
            color: #ffffff;
            border-color: var(--color-accent);
        }
        .pagination-bar__btn--active {
            background: var(--color-accent);
            color: #ffffff;
            border-color: var(--color-accent);
            font-weight: 700;
            pointer-events: none;
        }
        .pagination-bar__btn--disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--color-primary);
            color: #ffffff;
            padding: var(--spacing-3xl) 0 var(--spacing-xl);
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: var(--spacing-2xl);
            padding-bottom: var(--spacing-xl);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            display: block;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.03em;
        }
        .footer-col h4 {
            color: var(--color-accent-light);
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: var(--spacing-md);
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 0.45rem;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-disclaimer {
            padding-top: var(--spacing-lg);
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.7;
        }

        /* ============ RESPONSIVE ============ */
        @media screen and (max-width: 1024px) {
            :root {
                --nav-width: 240px;
            }
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-xl);
            }
            h1 {
                font-size: 2rem;
            }
            .category-banner h1 {
                font-size: 2.2rem;
            }
            .featured-article {
                min-height: 340px;
            }
            .featured-article__title {
                font-size: 1.4rem;
            }
        }

        @media screen and (max-width: 768px) {
            body {
                grid-template-columns: 1fr;
            }
            .side-nav {
                transform: translateX(-100%);
                box-shadow: none;
            }
            .side-nav.is-open {
                transform: translateX(0);
                box-shadow: 4px 0 30px rgba(0, 0, 0, 0.35);
            }
            .mobile-nav-toggle {
                display: flex;
            }
            .side-nav-overlay {
                display: block;
            }
            .main-content {
                grid-column: 1;
            }
            .articles-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .category-banner {
                padding: var(--spacing-2xl) 0 var(--spacing-xl);
            }
            .category-banner h1 {
                font-size: 1.8rem;
            }
            .category-banner__stats {
                gap: var(--spacing-lg);
            }
            .category-banner__stat-number {
                font-size: 1.5rem;
            }
            .featured-article {
                min-height: 280px;
                border-radius: var(--radius-lg);
            }
            .featured-article__title {
                font-size: 1.2rem;
            }
            .featured-article__content {
                padding: var(--spacing-lg);
            }
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .section__title {
                font-size: 1.4rem;
            }
            .newsletter-form {
                flex-direction: column;
                gap: 0.5rem;
            }
            .newsletter-cta {
                border-radius: var(--radius-lg);
                padding: var(--spacing-xl) var(--spacing-lg);
            }
            .newsletter-cta h2 {
                font-size: 1.4rem;
            }
            .pagination-bar {
                gap: 0.25rem;
            }
            .pagination-bar__btn {
                width: 34px;
                height: 34px;
                font-size: 0.8rem;
            }
            .tag-cloud {
                gap: 0.4rem;
            }
            .tag-cloud__item {
                font-size: 0.78rem;
                padding: 0.35rem 0.75rem;
            }
            .section-container {
                padding: 0 var(--spacing-md);
            }
        }

        @media screen and (max-width: 520px) {
            .category-banner h1 {
                font-size: 1.5rem;
            }
            .category-banner__subtitle {
                font-size: 0.9rem;
            }
            .category-banner__stats {
                gap: var(--spacing-md);
                flex-direction: row;
                flex-wrap: wrap;
            }
            .featured-article {
                min-height: 240px;
            }
            .featured-article__title {
                font-size: 1.05rem;
            }
            .featured-article__excerpt {
                font-size: 0.82rem;
                -webkit-line-clamp: 2;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                overflow: hidden;
            }
            .article-card__title {
                font-size: 0.95rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .section__title {
                font-size: 1.25rem;
            }
            .newsletter-cta h2 {
                font-size: 1.2rem;
            }
            .btn-newsletter {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #1a1a2e;
            --color-primary-light: #252544;
            --color-accent: #c9a96e;
            --color-accent-hover: #d4b87a;
            --color-accent-light: #f0e6d3;
            --color-bg: #f8f7f4;
            --color-white: #ffffff;
            --color-text: #2c2c2c;
            --color-text-muted: #6b6b6b;
            --color-text-light: #999999;
            --color-border: #e8e5df;
            --color-border-light: #f0ede8;
            --color-success: #3a7d5a;
            --color-warning: #b8860b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1.25rem;
            --spacing-lg: 2rem;
            --spacing-xl: 3rem;
            --spacing-2xl: 4rem;
            --spacing-3xl: 5rem;
            --nav-width: 260px;
            --font-heading: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

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

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

        body {
            font-family: var(--font-body);
            color: var(--color-text);
            background: var(--color-bg);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

        input {
            font-family: inherit;
        }

        ul {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 600;
            line-height: 1.3;
            color: var(--color-primary);
        }

        h1 {
            font-size: 2.6rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.15rem;
        }

        .off-canvas-wrapper {
            min-height: 100vh;
            position: relative;
            overflow-x: hidden;
        }

        .off-canvas.position-left {
            background: var(--color-primary);
            width: var(--nav-width);
            min-height: 100vh;
            padding: 0;
        }

        .off-canvas.position-left .side-nav {
            display: flex;
            flex-direction: column;
            height: 100vh;
            padding: var(--spacing-lg) var(--spacing-md);
        }

        .off-canvas-content {
            min-height: 100vh;
            background: var(--color-bg);
            transition: margin-left var(--transition-smooth);
        }

        @media screen and (min-width: 1024px) {
            .off-canvas.position-left {
                position: fixed !important;
                top: 0;
                left: 0;
                width: var(--nav-width);
                height: 100vh;
                transform: translateX(0) !important;
                visibility: visible !important;
                z-index: 40;
                transition: none;
                overflow-y: auto;
            }
            .off-canvas.position-left.is-open {
                transform: translateX(0) !important;
            }
            .off-canvas-content {
                margin-left: var(--nav-width);
            }
            .mobile-top-bar {
                display: none !important;
            }
            .js-off-canvas-overlay {
                display: none !important;
            }
        }

        @media screen and (max-width: 1023px) {
            .off-canvas.position-left {
                width: 280px;
                z-index: 50;
            }
            .off-canvas-content {
                margin-left: 0;
            }
            .mobile-top-bar {
                display: flex;
            }
        }

        .mobile-top-bar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 35;
            background: var(--color-primary);
            padding: var(--spacing-sm) var(--spacing-md);
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-md);
            min-height: 52px;
        }

        .mobile-top-bar .hamburger-btn {
            color: #ffffff;
            font-size: 1.4rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            line-height: 1;
        }

        .mobile-top-bar .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        .mobile-top-bar .mobile-logo {
            color: #ffffff;
            font-weight: 600;
            font-size: 1.05rem;
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-top-bar .mobile-logo i {
            color: var(--color-accent);
            font-size: 1.1rem;
        }

        .mobile-top-bar .mobile-spacer {
            width: 38px;
        }

        .side-nav {
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .side-nav__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.03em;
            margin-bottom: var(--spacing-xl);
            padding: var(--spacing-xs) var(--spacing-sm);
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            white-space: nowrap;
        }

        .side-nav__logo i {
            color: var(--color-accent);
            font-size: 1.3rem;
            flex-shrink: 0;
        }

        .side-nav__logo:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
        }

        .side-nav__list {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav__list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .side-nav__list li a i {
            width: 20px;
            text-align: center;
            font-size: 0.95rem;
            flex-shrink: 0;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }

        .side-nav__list li a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
        }
        .side-nav__list li a:hover i {
            color: var(--color-accent);
        }

        .side-nav__list li a.active {
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(201, 169, 110, 0.35);
        }
        .side-nav__list li a.active i {
            color: var(--color-primary);
        }

        .side-nav__cta {
            margin-top: auto;
            padding-top: var(--spacing-lg);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .btn-side-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 18px;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: var(--radius-md);
            letter-spacing: 0.03em;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(201, 169, 110, 0.3);
        }

        .btn-side-cta:hover {
            background: var(--color-accent-hover);
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(201, 169, 110, 0.45);
        }

        .btn-side-cta i {
            font-size: 0.85rem;
        }

        .section-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        @media screen and (max-width: 768px) {
            .section-container {
                padding: 0 var(--spacing-md);
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.55rem;
            }
            h3 {
                font-size: 1.25rem;
            }
        }

        @media screen and (max-width: 520px) {
            .section-container {
                padding: 0 var(--spacing-sm);
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.15rem;
            }
        }

        .page-banner {
            position: relative;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center 40%;
            background-repeat: no-repeat;
            min-height: 380px;
            display: flex;
            align-items: center;
            color: #ffffff;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.82) 0%, rgba(26, 26, 46, 0.55) 55%, rgba(26, 26, 46, 0.3) 100%);
            z-index: 1;
        }

        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            padding: var(--spacing-3xl) 0;
            max-width: 700px;
        }

        .page-banner .banner-badge {
            display: inline-block;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.8rem;
            letter-spacing: 0.06em;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: var(--spacing-md);
            text-transform: uppercase;
        }

        .page-banner h1 {
            color: #ffffff;
            font-size: 2.8rem;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .page-banner .banner-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 520px;
        }

        @media screen and (max-width: 768px) {
            .page-banner {
                min-height: 280px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner .banner-subtitle {
                font-size: 0.95rem;
            }
        }

        @media screen and (max-width: 520px) {
            .page-banner {
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-content {
                padding: var(--spacing-2xl) 0;
            }
        }

        .breadcrumb-row {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            padding: var(--spacing-sm) 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb .separator {
            color: var(--color-border);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        .content-section {
            padding: var(--spacing-2xl) 0;
        }

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

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-2xl);
        }

        .section-header h2 {
            margin-bottom: var(--spacing-xs);
            position: relative;
            display: inline-block;
        }

        .section-header .section-accent {
            width: 48px;
            height: 3px;
            background: var(--color-accent);
            margin: var(--spacing-sm) auto 0;
            border-radius: 2px;
        }

        .section-header .section-intro {
            color: var(--color-text-muted);
            font-size: 1rem;
            max-width: 600px;
            margin: var(--spacing-sm) auto 0;
            line-height: 1.6;
        }

        .overview-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }

        .overview-grid .overview-text h3 {
            margin-bottom: var(--spacing-md);
        }
        .overview-grid .overview-text p {
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: var(--spacing-sm);
        }
        .overview-grid .overview-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .overview-grid .overview-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
            transition: transform var(--transition-smooth);
        }
        .overview-grid .overview-image:hover img {
            transform: scale(1.04);
        }

        @media screen and (max-width: 768px) {
            .overview-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .overview-grid .overview-image {
                order: -1;
            }
        }

        .timeline-block {
            position: relative;
            padding-left: 40px;
        }

        .timeline-block::before {
            content: '';
            position: absolute;
            left: 15px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: var(--color-border);
            border-radius: 1px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: var(--spacing-xl);
            padding-bottom: 0;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -33px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--color-accent);
            border: 3px solid var(--color-white);
            box-shadow: 0 0 0 3px var(--color-accent-light);
            z-index: 2;
        }

        .timeline-item .timeline-year {
            font-weight: 700;
            color: var(--color-accent);
            font-size: 1rem;
            letter-spacing: 0.04em;
            margin-bottom: 4px;
        }

        .timeline-item h4 {
            margin-bottom: 4px;
            font-size: 1.1rem;
        }
        .timeline-item p {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        @media screen and (max-width: 520px) {
            .timeline-block {
                padding-left: 32px;
            }
            .timeline-block::before {
                left: 11px;
            }
            .timeline-item::before {
                left: -27px;
                width: 11px;
                height: 11px;
            }
        }

        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

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

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

        .story-card__image {
            width: 100%;
            aspect-ratio: 16/10;
            overflow: hidden;
            position: relative;
        }
        .story-card__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .story-card:hover .story-card__image img {
            transform: scale(1.06);
        }

        .story-card__image .story-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-accent);
            color: var(--color-primary);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 16px;
            letter-spacing: 0.04em;
            z-index: 2;
        }

        .story-card__body {
            padding: var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .story-card__body h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .story-card__body p {
            color: var(--color-text-muted);
            font-size: 0.88rem;
            line-height: 1.6;
            flex: 1;
            margin-bottom: var(--spacing-sm);
        }
        .story-card__body .story-meta {
            font-size: 0.78rem;
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .story-card__body .story-meta i {
            color: var(--color-accent);
            font-size: 0.7rem;
        }

        @media screen and (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media screen and (max-width: 600px) {
            .cards-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
        }

        .values-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }

        .value-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl) var(--spacing-md);
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
        }

        .value-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .value-card .value-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-md);
            font-size: 1.5rem;
            color: var(--color-accent);
            transition: all var(--transition-smooth);
        }
        .value-card:hover .value-icon {
            background: var(--color-accent);
            color: #ffffff;
            box-shadow: 0 6px 18px rgba(201, 169, 110, 0.35);
        }
        .value-card h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .value-card p {
            font-size: 0.83rem;
            color: var(--color-text-muted);
            line-height: 1.5;
        }

        @media screen and (max-width: 1024px) {
            .values-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media screen and (max-width: 520px) {
            .values-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }
            .value-card {
                padding: var(--spacing-md) var(--spacing-sm);
            }
            .value-card .value-icon {
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }
        }

        .faq-block {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-sm);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-question {
            padding: var(--spacing-md) var(--spacing-lg);
            font-weight: 600;
            font-size: 0.98rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            color: var(--color-primary);
            transition: color var(--transition-fast);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--color-text-light);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 var(--spacing-lg);
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: var(--spacing-md);
        }

        .cta-section {
            background: var(--color-primary);
            color: #ffffff;
            padding: var(--spacing-3xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(201, 169, 110, 0.08);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(201, 169, 110, 0.06);
            pointer-events: none;
        }

        .cta-section .section-container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: #ffffff;
            margin-bottom: var(--spacing-sm);
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            max-width: 520px;
            margin: 0 auto var(--spacing-lg);
            font-size: 1rem;
            line-height: 1.6;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-md);
            letter-spacing: 0.03em;
            transition: all var(--transition-smooth);
            box-shadow: 0 6px 22px rgba(201, 169, 110, 0.4);
        }
        .btn-cta:hover {
            background: var(--color-accent-hover);
            color: var(--color-primary);
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(201, 169, 110, 0.55);
        }
        .btn-cta i {
            font-size: 0.9rem;
        }

        .site-footer {
            background: var(--color-primary);
            color: #ffffff;
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }

        .footer-brand {
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: var(--spacing-sm);
            display: block;
            color: #ffffff;
        }

        .footer-col h4 {
            color: var(--color-accent);
            font-size: 0.9rem;
            letter-spacing: 0.05em;
            margin-bottom: var(--spacing-sm);
            font-weight: 600;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }

        .footer-disclaimer {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: var(--spacing-md);
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.78rem;
            line-height: 1.6;
            text-align: center;
        }

        @media screen and (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-lg);
            }
        }
        @media screen and (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
        }

        .stats-inline {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-lg);
            justify-content: center;
            margin-top: var(--spacing-lg);
        }
        .stat-item {
            text-align: center;
            min-width: 100px;
        }
        .stat-item .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: -0.02em;
            line-height: 1;
        }
        .stat-item .stat-label {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        @media screen and (max-width: 520px) {
            .stats-inline {
                gap: var(--spacing-md);
            }
            .stat-item .stat-number {
                font-size: 1.7rem;
            }
        }

/* roulang page: category5 */
/* ========================================
           DESIGN SYSTEM - CSS VARIABLES
           ======================================== */
        :root {
            --color-primary: #1a1a2e;
            --color-primary-light: #252542;
            --color-accent: #c9a96e;
            --color-accent-hover: #b8954f;
            --color-accent-light: #f0e6d3;
            --color-bg: #fafaf8;
            --color-bg-alt: #f2efe9;
            --color-surface: #ffffff;
            --color-text: #1c1c1c;
            --color-text-secondary: #5a5a5a;
            --color-text-muted: #8a8a8a;
            --color-border: #e5e2dc;
            --color-border-light: #f0ede7;
            --color-success: #3a7d5a;
            --color-warning: #c2853a;

            --font-heading: 'Georgia', 'Noto Serif SC', 'STSong', 'Songti SC', serif;
            --font-body: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;

            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 14px;
            --radius-xl: 20px;

            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.14);

            --spacing-xs: 6px;
            --spacing-sm: 12px;
            --spacing-md: 20px;
            --spacing-lg: 32px;
            --spacing-xl: 48px;
            --spacing-2xl: 64px;
            --spacing-3xl: 80px;

            --side-nav-width: 250px;
            --side-nav-collapsed: 0px;
            --topbar-height: 56px;

            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
        }

        /* ========================================
           BASE RESET & TYPOGRAPHY
           ======================================== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-body);
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 600;
            line-height: 1.3;
            color: var(--color-primary);
        }

        h1 {
            font-size: 2.4rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.9rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.35rem;
        }
        h4 {
            font-size: 1.1rem;
            font-family: var(--font-body);
            font-weight: 600;
        }

        /* ========================================
           LAYOUT - SIDE NAV + MAIN CONTENT
           ======================================== */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        /* Side Navigation */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--side-nav-width);
            height: 100vh;
            background: var(--color-primary);
            color: #ffffff;
            z-index: 100;
            display: flex;
            flex-direction: column;
            padding: var(--spacing-lg) var(--spacing-md);
            overflow-y: auto;
            transition: transform var(--transition-slow);
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.18);
        }

        .side-nav__logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            padding: var(--spacing-sm) var(--spacing-sm);
            margin-bottom: var(--spacing-xl);
            letter-spacing: 0.03em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .side-nav__logo i {
            color: var(--color-accent);
            font-size: 1.5rem;
        }

        .side-nav__logo:hover {
            color: var(--color-accent);
        }

        .side-nav__list {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav__list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .side-nav__list li a i {
            width: 20px;
            text-align: center;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }

        .side-nav__list li a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
        }

        .side-nav__list li a:hover i {
            color: var(--color-accent);
        }

        .side-nav__list li a.active {
            background: var(--color-accent);
            color: #ffffff;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(201, 169, 110, 0.35);
        }

        .side-nav__list li a.active i {
            color: #ffffff;
        }

        .side-nav__cta {
            margin-top: var(--spacing-lg);
            padding-top: var(--spacing-md);
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }

        .btn-side-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 18px;
            background: transparent;
            border: 2px solid var(--color-accent);
            color: var(--color-accent);
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            cursor: pointer;
            text-align: center;
            white-space: nowrap;
        }

        .btn-side-cta:hover {
            background: var(--color-accent);
            color: #ffffff;
            box-shadow: 0 6px 20px rgba(201, 169, 110, 0.3);
        }

        /* Main Content Area */
        .main-content {
            margin-left: var(--side-nav-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition-slow);
        }

        /* Section Container */
        .section-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
            width: 100%;
        }

        .section-container--narrow {
            max-width: 860px;
        }

        .section-container--wide {
            max-width: 1200px;
        }

        /* ========================================
           MOBILE TOPBAR
           ======================================== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--topbar-height);
            background: var(--color-primary);
            z-index: 99;
            align-items: center;
            justify-content: space-between;
            padding: 0 var(--spacing-md);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }

        .mobile-topbar__logo {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-topbar__logo i {
            color: var(--color-accent);
        }

        .mobile-topbar__toggle {
            background: none;
            border: none;
            color: #ffffff;
            font-size: 1.4rem;
            cursor: pointer;
            padding: 6px;
            transition: color var(--transition-fast);
        }

        .mobile-topbar__toggle:hover {
            color: var(--color-accent);
        }

        .side-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 98;
            opacity: 0;
            transition: opacity var(--transition-base);
            pointer-events: none;
        }

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

        /* ========================================
           PAGE BANNER
           ======================================== */
        .page-banner {
            position: relative;
            background: var(--color-primary-light);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            padding: var(--spacing-3xl) 0;
            color: #ffffff;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(26, 26, 46, 0.75) 0%,
                    rgba(26, 26, 46, 0.6) 50%,
                    rgba(26, 26, 46, 0.8) 100%);
            z-index: 1;
        }

        .page-banner__content {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .page-banner__label {
            display: inline-block;
            background: var(--color-accent);
            color: #ffffff;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: var(--spacing-md);
        }

        .page-banner h1 {
            color: #ffffff;
            font-size: 2.8rem;
            margin-bottom: var(--spacing-sm);
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        .page-banner__subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========================================
           SECTIONS SPACING
           ======================================== */
        .section {
            padding: var(--spacing-2xl) 0;
        }

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

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

        .section--dark h2,
        .section--dark h3 {
            color: #ffffff;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }

        .section-header h2 {
            margin-bottom: var(--spacing-xs);
        }

        .section-header__line {
            width: 50px;
            height: 3px;
            background: var(--color-accent);
            margin: var(--spacing-sm) auto;
            border-radius: 2px;
        }

        .section-header__desc {
            color: var(--color-text-secondary);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section--dark .section-header__desc {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========================================
           CARDS
           ======================================== */
        .card-story {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
            border: 1px solid var(--color-border-light);
        }

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

        .card-story__image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--color-bg-alt);
        }

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

        .card-story:hover .card-story__image img {
            transform: scale(1.05);
        }

        .card-story__badge {
            position: absolute;
            top: var(--spacing-sm);
            left: var(--spacing-sm);
            background: var(--color-accent);
            color: #ffffff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 14px;
            letter-spacing: 0.04em;
            z-index: 2;
        }

        .card-story__body {
            padding: var(--spacing-lg);
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-story__body h3 {
            margin-bottom: var(--spacing-xs);
            font-size: 1.25rem;
        }

        .card-story__body p {
            color: var(--color-text-secondary);
            font-size: 0.93rem;
            line-height: 1.65;
            flex: 1;
            margin-bottom: var(--spacing-md);
        }

        .card-story__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.9rem;
            transition: gap var(--transition-fast);
            align-self: flex-start;
        }

        .card-story__link i {
            font-size: 0.75rem;
            transition: transform var(--transition-fast);
        }

        .card-story__link:hover {
            gap: 10px;
            color: var(--color-accent-hover);
        }

        .card-story__link:hover i {
            transform: translateX(3px);
        }

        /* ========================================
           TIMELINE
           ======================================== */
        .timeline {
            position: relative;
            padding-left: 40px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--color-border);
            border-radius: 1px;
        }

        .timeline__item {
            position: relative;
            margin-bottom: var(--spacing-lg);
            padding-left: var(--spacing-md);
        }

        .timeline__item:last-child {
            margin-bottom: 0;
        }

        .timeline__dot {
            position: absolute;
            left: -28px;
            top: 5px;
            width: 14px;
            height: 14px;
            background: var(--color-accent);
            border-radius: 50%;
            border: 3px solid var(--color-bg);
            box-shadow: 0 0 0 3px var(--color-accent-light);
            z-index: 2;
        }

        .timeline__year {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--color-accent);
            margin-bottom: 2px;
        }

        .timeline__title {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--color-primary);
            margin-bottom: 4px;
        }

        .timeline__desc {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* ========================================
           CRAFT SHOWCASE
           ======================================== */
        .craft-showcase {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }

        .craft-showcase__image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4 / 5;
        }

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

        .craft-showcase__text h3 {
            font-size: 1.6rem;
            margin-bottom: var(--spacing-md);
        }

        .craft-showcase__text p {
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin-bottom: var(--spacing-sm);
        }

        .craft-highlights {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            margin-top: var(--spacing-md);
        }

        .craft-highlight-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: var(--color-accent-light);
            color: var(--color-primary);
            padding: 7px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
        }

        .craft-highlight-tag i {
            color: var(--color-accent);
            font-size: 0.7rem;
        }

        /* ========================================
           STATS ROW
           ======================================== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            text-align: center;
        }

        .stat-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg) var(--spacing-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }

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

        .stat-card__number {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-accent);
            margin-bottom: 4px;
        }

        .stat-card__label {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            font-weight: 500;
        }

        .stat-card__suffix {
            font-size: 1rem;
            color: var(--color-text-muted);
            font-weight: 400;
        }

        /* ========================================
           FAQ
           ======================================== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

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

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

        .faq-item__question {
            width: 100%;
            background: none;
            border: none;
            padding: var(--spacing-md) var(--spacing-lg);
            text-align: left;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            transition: color var(--transition-fast);
            line-height: 1.5;
        }

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

        .faq-item__icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            transition: all var(--transition-fast);
            color: var(--color-text-muted);
        }

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

        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 var(--spacing-lg);
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .faq-item.is-open .faq-item__answer {
            max-height: 300px;
            padding: 0 var(--spacing-lg) var(--spacing-md);
        }

        /* ========================================
           CTA SECTION
           ======================================== */
        .cta-section {
            background: var(--color-primary);
            color: #ffffff;
            text-align: center;
            padding: var(--spacing-3xl) 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(201, 169, 110, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            color: #ffffff;
            margin-bottom: var(--spacing-sm);
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: var(--spacing-lg);
            font-size: 1.05rem;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent);
            color: #ffffff;
            padding: 14px 30px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-base);
            cursor: pointer;
            border: none;
            box-shadow: 0 6px 22px rgba(201, 169, 110, 0.35);
        }

        .btn-cta:hover {
            background: var(--color-accent-hover);
            color: #ffffff;
            box-shadow: 0 10px 30px rgba(201, 169, 110, 0.5);
            transform: translateY(-2px);
        }

        .btn-cta i {
            transition: transform var(--transition-fast);
        }

        .btn-cta:hover i {
            transform: translateX(4px);
        }

        /* ========================================
           FOOTER
           ======================================== */
        .site-footer {
            background: #141420;
            color: #ffffff;
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            display: block;
            margin-bottom: var(--spacing-sm);
        }

        .footer-col h4 {
            color: var(--color-accent);
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: var(--spacing-sm);
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
        }

        .footer-disclaimer {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-md);
            text-align: center;
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.8rem;
            line-height: 1.6;
        }

        /* ========================================
           RESPONSIVE BREAKPOINTS
           ======================================== */

        /* Tablet & below (<=1024px) */
        @media (max-width: 1024px) {
            :root {
                --side-nav-width: 220px;
            }

            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }

            .page-banner h1 {
                font-size: 2.2rem;
            }

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

            .craft-showcase {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }

            .craft-showcase__image {
                aspect-ratio: 16 / 10;
                max-height: 400px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-lg);
            }
        }

        /* Mobile (<=768px) */
        @media (max-width: 768px) {
            :root {
                --side-nav-width: 250px;
            }

            .side-nav {
                transform: translateX(-100%);
                width: var(--side-nav-width);
                z-index: 100;
            }

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

            .side-nav-overlay {
                display: block;
            }

            .main-content {
                margin-left: 0;
                padding-top: var(--topbar-height);
            }

            .mobile-topbar {
                display: flex;
            }

            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }

            .section {
                padding: var(--spacing-xl) 0;
            }

            .section-container {
                padding: 0 var(--spacing-md);
            }

            .page-banner {
                padding: var(--spacing-2xl) 0 var(--spacing-xl);
            }

            .page-banner h1 {
                font-size: 1.8rem;
            }

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

            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-sm);
            }

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

            .timeline {
                padding-left: 32px;
            }

            .timeline::before {
                left: 12px;
            }

            .timeline__dot {
                left: -24px;
                width: 12px;
                height: 12px;
            }

            .craft-showcase__image {
                aspect-ratio: 3 / 2;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
                text-align: center;
            }

            .footer-col ul {
                align-items: center;
            }

            .card-story__body {
                padding: var(--spacing-md);
            }
        }

        /* Small Mobile (<=520px) */
        @media (max-width: 520px) {
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.3rem;
            }

            .page-banner h1 {
                font-size: 1.5rem;
            }

            .page-banner {
                padding: var(--spacing-xl) 0;
            }

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

            .stat-card {
                padding: var(--spacing-md) var(--spacing-sm);
            }

            .stat-card__number {
                font-size: 1.5rem;
            }

            .stat-card__label {
                font-size: 0.8rem;
            }

            .craft-highlights {
                gap: 6px;
            }

            .craft-highlight-tag {
                font-size: 0.78rem;
                padding: 5px 10px;
            }

            .btn-cta {
                padding: 12px 22px;
                font-size: 0.9rem;
            }

            .faq-item__question {
                font-size: 0.9rem;
                padding: var(--spacing-sm) var(--spacing-md);
            }

            .card-story__body h3 {
                font-size: 1.1rem;
            }
        }

        /* ========================================
           UTILITY CLASSES
           ======================================== */
        .text-accent {
            color: var(--color-accent);
        }
        .text-muted {
            color: var(--color-text-muted);
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mb-sm {
            margin-bottom: var(--spacing-sm);
        }
        .mb-md {
            margin-bottom: var(--spacing-md);
        }
        .mb-lg {
            margin-bottom: var(--spacing-lg);
        }
        .mb-xl {
            margin-bottom: var(--spacing-xl);
        }
        .text-center {
            text-align: center;
        }

        /* Focus visible */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 2px;
        }

        .side-nav__list li a:focus-visible {
            outline-color: #ffffff;
            outline-offset: -2px;
        }