/* roulang page: index */
:root {
            --color-primary: #c9a96e;
            --color-primary-hover: #d4b87a;
            --color-primary-light: rgba(201, 169, 110, 0.15);
            --color-primary-border: rgba(201, 169, 110, 0.3);
            --color-bg: #0f0f0f;
            --color-bg-sidebar: #080808;
            --color-bg-card: #181818;
            --color-bg-card-hover: #1e1e1e;
            --color-bg-section-alt: #141414;
            --color-text: #f0ece6;
            --color-text-weak: #9a9790;
            --color-text-muted: #6b6862;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-light: rgba(255, 255, 255, 0.05);
            --color-white: #ffffff;
            --color-black: #000000;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
            --shadow-gold: 0 4px 20px rgba(201, 169, 110, 0.12);
            --space-xs: 6px;
            --space-sm: 12px;
            --space-md: 20px;
            --space-lg: 32px;
            --space-xl: 48px;
            --space-2xl: 64px;
            --space-3xl: 80px;
            --sidebar-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: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
        }

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

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

        body {
            font-family: var(--font-body);
            line-height: 1.68;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        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-primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

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

        input {
            font-family: inherit;
        }

        ul {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            line-height: 1.25;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .off-canvas-wrapper {
            min-height: 100vh;
        }

        .desktop-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--color-bg-sidebar);
            border-right: 1px solid var(--color-border);
            z-index: 100;
            display: flex;
            flex-direction: column;
            padding: 0;
            overflow-y: auto;
            transition: transform var(--transition-base);
        }

        .sidebar-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: var(--space-lg) var(--space-md);
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-white);
            margin-bottom: var(--space-xl);
            padding-bottom: var(--space-md);
            border-bottom: 1px solid var(--color-border);
            transition: color var(--transition-fast);
        }
        .sidebar-logo:hover {
            color: var(--color-primary);
        }
        .sidebar-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-black);
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            padding: 11px 14px;
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.03em;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 0.9rem;
            opacity: 0.65;
            transition: opacity var(--transition-fast);
        }
        .sidebar-nav a:hover {
            color: var(--color-white);
            background: rgba(255, 255, 255, 0.04);
        }
        .sidebar-nav a:hover i {
            opacity: 1;
        }
        .sidebar-nav a.active {
            color: var(--color-primary);
            background: var(--color-primary-light);
            font-weight: 600;
        }
        .sidebar-nav a.active i {
            opacity: 1;
            color: var(--color-primary);
        }
        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 22px;
            background: var(--color-primary);
            border-radius: 0 3px 3px 0;
        }

        .sidebar-cta {
            margin-top: auto;
            padding-top: var(--space-md);
            border-top: 1px solid var(--color-border);
        }
        .sidebar-cta .btn-sidebar-cta {
            display: block;
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            background: var(--color-primary);
            color: var(--color-black);
            font-weight: 600;
            font-size: 0.9rem;
            text-align: center;
            letter-spacing: 0.04em;
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .sidebar-cta .btn-sidebar-cta:hover {
            background: var(--color-primary-hover);
            box-shadow: var(--shadow-gold);
            transform: translateY(-2px);
        }
        .sidebar-cta .btn-sidebar-cta:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 99;
            background: var(--color-bg-sidebar);
            border-bottom: 1px solid var(--color-border);
            padding: 10px 16px;
            align-items: center;
            justify-content: space-between;
            height: 56px;
        }
        .mobile-header .mobile-logo {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            color: var(--color-white);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-header .mobile-logo .logo-icon-sm {
            width: 28px;
            height: 28px;
            border-radius: 5px;
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-black);
            font-size: 0.8rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .mobile-header .hamburger-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text);
            font-size: 1.3rem;
            transition: background var(--transition-fast);
        }
        .mobile-header .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        .off-canvas.position-left {
            background: var(--color-bg-sidebar);
            width: 280px;
        }
        .off-canvas.position-left .sidebar-inner {
            padding: var(--space-lg) var(--space-md);
        }
        .off-canvas.position-left .sidebar-nav a {
            font-size: 0.95rem;
            padding: 12px 14px;
        }

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

        .main-content {
            padding-bottom: 0;
        }

        .section-block {
            padding: var(--space-3xl) var(--space-2xl);
        }
        .section-block-alt {
            background: var(--color-bg-section-alt);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .section-header {
            margin-bottom: var(--space-xl);
            text-align: center;
        }
        .section-header .section-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-primary);
            text-transform: uppercase;
            margin-bottom: var(--space-sm);
            padding: 4px 12px;
            border: 1px solid var(--color-primary-border);
            border-radius: 20px;
            background: var(--color-primary-light);
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-white);
            letter-spacing: 0.04em;
            margin-bottom: var(--space-sm);
        }
        .section-header .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-weak);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-md);
        }

        .hero-section {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
            margin: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 15, 15, 0.55) 0%, rgba(15, 15, 15, 0.78) 40%, rgba(15, 15, 15, 0.92) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 780px;
            padding: var(--space-2xl) var(--space-md);
        }
        .hero-content .hero-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.1em;
            color: var(--color-primary);
            text-transform: uppercase;
            padding: 6px 16px;
            border: 1px solid rgba(201, 169, 110, 0.4);
            border-radius: 24px;
            background: rgba(201, 169, 110, 0.08);
            margin-bottom: var(--space-lg);
            backdrop-filter: blur(8px);
        }
        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 700;
            color: var(--color-white);
            letter-spacing: 0.06em;
            line-height: 1.2;
            margin-bottom: var(--space-md);
        }
        .hero-content .hero-subtitle {
            font-size: 1.15rem;
            color: var(--color-text-weak);
            max-width: 560px;
            margin: 0 auto var(--space-lg);
            line-height: 1.7;
        }
        .hero-content .hero-actions {
            display: flex;
            gap: var(--space-md);
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 28px;
            background: var(--color-primary);
            color: var(--color-black);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.04em;
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--color-primary-hover);
            box-shadow: var(--shadow-gold);
            transform: translateY(-2px);
            color: var(--color-black);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 28px;
            background: transparent;
            color: var(--color-white);
            font-weight: 500;
            font-size: 0.95rem;
            letter-spacing: 0.04em;
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-outline:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(201, 169, 110, 0.06);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }

        .brand-matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-md);
        }
        .brand-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            cursor: pointer;
            position: relative;
        }
        .brand-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary-border);
            background: var(--color-bg-card-hover);
        }
        .brand-card .brand-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .brand-card .brand-card-body {
            padding: var(--space-md);
        }
        .brand-card .brand-card-body h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-white);
            margin-bottom: 4px;
            letter-spacing: 0.03em;
        }
        .brand-card .brand-card-body p {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            line-height: 1.5;
            margin: 0;
        }
        .brand-card .brand-card-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(0, 0, 0, 0.7);
            color: var(--color-primary);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 14px;
            letter-spacing: 0.06em;
            backdrop-filter: blur(6px);
        }

        .data-dashboard {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-md);
        }
        .data-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: var(--space-lg);
            text-align: center;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .data-card:hover {
            border-color: var(--color-primary-border);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .data-card .data-icon {
            font-size: 2rem;
            color: var(--color-primary);
            margin-bottom: var(--space-sm);
        }
        .data-card .data-value {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--color-white);
            letter-spacing: 0.03em;
            line-height: 1;
            margin-bottom: 4px;
        }
        .data-card .data-label {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            letter-spacing: 0.04em;
        }
        .data-card .data-trend {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 10px;
            margin-top: 6px;
            letter-spacing: 0.03em;
        }
        .data-trend.up {
            background: rgba(76, 175, 80, 0.15);
            color: #81c784;
        }
        .data-trend.stable {
            background: rgba(201, 169, 110, 0.15);
            color: var(--color-primary);
        }

        .service-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-md);
        }
        .service-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: var(--space-lg);
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            text-align: center;
            cursor: pointer;
        }
        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary-border);
            background: var(--color-bg-card-hover);
        }
        .service-card .service-icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--space-md);
            font-size: 1.4rem;
            color: var(--color-primary);
            transition: all var(--transition-base);
        }
        .service-card:hover .service-icon-wrap {
            background: var(--color-primary);
            color: var(--color-black);
        }
        .service-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-white);
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }
        .service-card p {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            line-height: 1.5;
            margin: 0;
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-lg);
        }
        .news-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary-border);
        }
        .news-card .news-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .news-card .news-body {
            padding: var(--space-md);
        }
        .news-card .news-body .news-date {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            letter-spacing: 0.04em;
            margin-bottom: 4px;
        }
        .news-card .news-body h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-white);
            margin-bottom: 6px;
            line-height: 1.4;
            letter-spacing: 0.02em;
        }
        .news-card .news-body p {
            font-size: 0.84rem;
            color: var(--color-text-weak);
            line-height: 1.5;
            margin: 0;
        }

        .heritage-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-2xl);
            align-items: center;
        }
        .heritage-block .heritage-img-wrap {
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--color-border);
            position: relative;
        }
        .heritage-block .heritage-img-wrap img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            display: block;
            transition: transform var(--transition-slow);
        }
        .heritage-block .heritage-img-wrap:hover img {
            transform: scale(1.04);
        }
        .heritage-block .heritage-text h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: var(--space-md);
            letter-spacing: 0.04em;
        }
        .heritage-block .heritage-text p {
            font-size: 0.98rem;
            color: var(--color-text-weak);
            line-height: 1.7;
            margin-bottom: var(--space-md);
        }
        .heritage-block .heritage-text .btn-text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.04em;
            transition: gap var(--transition-fast);
            cursor: pointer;
        }
        .heritage-block .heritage-text .btn-text-link:hover {
            gap: 12px;
            color: var(--color-primary-hover);
        }

        .mobile-exp-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-2xl);
            align-items: center;
        }
        .mobile-exp-section .mobile-mockup {
            background: var(--color-bg-card);
            border-radius: var(--radius-xl);
            padding: var(--space-lg);
            border: 1px solid var(--color-border);
            text-align: center;
            transition: all var(--transition-base);
        }
        .mobile-exp-section .mobile-mockup img {
            width: 100%;
            max-width: 320px;
            margin: 0 auto;
            border-radius: var(--radius-lg);
            display: block;
        }
        .mobile-exp-section .mobile-exp-text h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: var(--space-md);
            letter-spacing: 0.04em;
        }
        .mobile-exp-section .mobile-exp-text p {
            font-size: 0.98rem;
            color: var(--color-text-weak);
            line-height: 1.7;
            margin-bottom: var(--space-md);
        }
        .feature-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }
        .feature-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--color-text-weak);
        }
        .feature-list li i {
            color: var(--color-primary);
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .sustainability-block {
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            padding: var(--space-3xl) var(--space-2xl);
            text-align: center;
            border: 1px solid var(--color-border);
        }
        .sustainability-overlay {
            position: absolute;
            inset: 0;
            background: rgba(15, 15, 15, 0.82);
            z-index: 1;
        }
        .sustainability-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
        }
        .sustainability-content h3 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: var(--space-md);
            letter-spacing: 0.04em;
        }
        .sustainability-content p {
            font-size: 1rem;
            color: var(--color-text-weak);
            line-height: 1.7;
            margin-bottom: var(--space-lg);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-primary-border);
            background: var(--color-bg-card-hover);
        }
        .faq-question {
            padding: 16px 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-white);
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question i {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-base), color var(--transition-fast);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.6;
            margin: 0;
        }

        .cta-section {
            text-align: center;
            padding: var(--space-3xl) var(--space-md);
            background: var(--color-bg-section-alt);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .cta-section h3 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: var(--space-sm);
            letter-spacing: 0.04em;
        }
        .cta-section p {
            font-size: 1rem;
            color: var(--color-text-weak);
            margin-bottom: var(--space-lg);
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .site-footer {
            background: var(--color-bg-sidebar);
            border-top: 1px solid var(--color-border);
            padding: var(--space-2xl) var(--space-2xl) var(--space-lg);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--space-xl);
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-md);
        }
        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-white);
            letter-spacing: 0.05em;
            margin-bottom: var(--space-md);
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-primary);
        }
        .footer-bottom {
            max-width: 1200px;
            margin: var(--space-lg) auto 0;
            padding: var(--space-md) var(--space-md) 0;
            border-top: 1px solid var(--color-border);
            text-align: center;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            letter-spacing: 0.03em;
        }
        .footer-bottom .disclaimer {
            margin-top: 6px;
            font-size: 0.75rem;
            color: var(--color-text-muted);
            line-height: 1.5;
        }

        @media (max-width: 1024px) {
            :root {
                --sidebar-width: 220px;
            }
            .brand-matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-dashboard {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .heritage-block {
                grid-template-columns: 1fr;
                gap: var(--space-lg);
            }
            .heritage-block .heritage-img-wrap img {
                height: 300px;
            }
            .mobile-exp-section {
                grid-template-columns: 1fr;
                gap: var(--space-lg);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-lg);
            }
            .hero-content h1 {
                font-size: 2.4rem;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .section-block {
                padding: var(--space-2xl) var(--space-lg);
            }
        }

        @media (max-width: 768px) {
            .desktop-sidebar {
                display: none;
            }
            .off-canvas-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
            .hero-section {
                min-height: 70vh;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content .hero-subtitle {
                font-size: 0.95rem;
            }
            .section-block {
                padding: var(--space-xl) var(--space-md);
            }
            .section-header h2 {
                font-size: 1.55rem;
            }
            .brand-matrix-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-sm);
            }
            .brand-card .brand-card-img {
                height: 140px;
            }
            .data-dashboard {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-sm);
            }
            .data-card .data-value {
                font-size: 1.8rem;
            }
            .service-cards-grid {
                grid-template-columns: 1fr;
                gap: var(--space-sm);
            }
            .news-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
            .heritage-block .heritage-img-wrap img {
                height: 240px;
            }
            .sustainability-block {
                padding: var(--space-xl) var(--space-md);
                border-radius: var(--radius-lg);
            }
            .sustainability-content h3 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .hero-content .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
                max-width: 300px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .brand-matrix-grid {
                grid-template-columns: 1fr;
            }
            .data-dashboard {
                grid-template-columns: 1fr;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
            .section-block {
                padding: var(--space-lg) var(--space-sm);
            }
            .hero-section {
                min-height: 60vh;
            }
            .container-custom {
                padding: 0 8px;
            }
        }

/* roulang page: category2 */
:root {
            /* 主色系 - 深金/香槟 */
            --color-primary: #B8943A;
            --color-primary-dark: #9A7B2E;
            --color-primary-light: #D4B86A;
            --color-accent: #C8A45C;
            --color-accent-glow: #E8D5A3;

            /* 背景色系 */
            --color-bg: #FAF8F5;
            --color-bg-warm: #F5F0E8;
            --color-bg-dark: #1E1E1E;
            --color-bg-card: #FFFFFF;
            --color-bg-overlay: rgba(30, 30, 30, 0.55);

            /* 文字色系 */
            --color-text: #2B2B2B;
            --color-text-strong: #1A1A1A;
            --color-text-weak: #7A756E;
            --color-text-muted: #A09B94;
            --color-text-on-dark: #F5F2ED;
            --color-text-on-primary: #FFFFFF;

            /* 边框与分割 */
            --color-border: #E8E4DF;
            --color-border-light: #F0EDE8;
            --color-border-strong: #D5CFC5;

            /* 圆角系统 */
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-pill: 50px;

            /* 阴影系统 */
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 8px 28px rgba(0, 0, 0, 0.12);
            --shadow-elevated: 0 4px 20px rgba(0, 0, 0, 0.10);
            --shadow-nav: 1px 0 20px rgba(0, 0, 0, 0.08);
            --shadow-btn: 0 2px 8px rgba(184, 148, 58, 0.25);

            /* 间距系统 */
            --space-xs: 8px;
            --space-sm: 14px;
            --space-md: 22px;
            --space-lg: 36px;
            --space-xl: 52px;
            --space-2xl: 72px;

            /* 侧边栏 */
            --sidebar-width: 240px;

            /* 过渡 */
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);

            /* 字体 */
            --font-body: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-heading: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Serif SC', Georgia, serif;
        }

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

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

        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);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            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-primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

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

        h1, h2, h3, h4, h5, h6 {
            margin: 0;
            font-family: var(--font-heading);
            font-weight: 600;
            line-height: 1.3;
            color: var(--color-text-strong);
        }

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

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

        /* ========== Foundation Off-Canvas Overrides ========== */
        .off-canvas-wrapper {
            min-height: 100vh;
            background-color: var(--color-bg);
        }

        .off-canvas.position-left {
            background-color: var(--color-bg-card);
            border-right: 1px solid var(--color-border);
            box-shadow: var(--shadow-nav);
            width: var(--sidebar-width);
            z-index: 100;
        }

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

        /* 桌面端：sidebar始终可见 */
        @media screen and (min-width: 1024px) {
            .off-canvas.position-left {
                transform: none !important;
                position: fixed;
                left: 0;
                top: 0;
                height: 100vh;
                visibility: visible !important;
                transition: none;
            }
            .off-canvas-content {
                margin-left: var(--sidebar-width);
            }
            .off-canvas.is-open-left {
                /* 桌面端不需要off-canvas的滑动行为 */;
            }
            .js-off-canvas-overlay {
                display: none !important;
            }
            .mobile-top-bar {
                display: none !important;
            }
        }

        @media screen and (max-width: 1023px) {
            .off-canvas.position-left {
                transform: translateX(-100%);
                transition: transform var(--transition-slow);
            }
            .off-canvas.position-left.is-open {
                transform: translateX(0);
            }
            .off-canvas-content {
                margin-left: 0;
            }
            .mobile-top-bar {
                display: flex;
            }
        }

        /* ========== Mobile Top Bar ========== */
        .mobile-top-bar {
            position: sticky;
            top: 0;
            z-index: 90;
            background: var(--color-bg-card);
            border-bottom: 1px solid var(--color-border);
            padding: 0 var(--space-md);
            height: 56px;
            align-items: center;
            justify-content: space-between;
            display: none;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.05);
        }
        .mobile-top-bar .mobile-logo {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-text-strong);
            letter-spacing: 0.03em;
        }
        .mobile-top-bar .hamburger-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--color-text);
            background: var(--color-bg-warm);
            transition: all var(--transition-fast);
        }
        .mobile-top-bar .hamburger-btn:hover {
            background: var(--color-primary-light);
            color: var(--color-text-on-primary);
        }

        /* ========== Sidebar Navigation ========== */
        .sidebar-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: var(--space-lg) var(--space-md);
        }
        .sidebar-logo {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: 0.04em;
            color: var(--color-text-strong);
            margin-bottom: var(--space-xl);
            display: flex;
            align-items: center;
            gap: 10px;
            padding-bottom: var(--space-lg);
            border-bottom: 1px solid var(--color-border-light);
        }
        .sidebar-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 16px;
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 0.95rem;
            color: var(--color-text-weak);
            transition: color var(--transition-fast);
        }
        .sidebar-nav a:hover {
            background: var(--color-bg-warm);
            color: var(--color-text-strong);
        }
        .sidebar-nav a:hover i {
            color: var(--color-primary);
        }
        .sidebar-nav a.active {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            color: #fff;
            font-weight: 600;
            box-shadow: var(--shadow-btn);
        }
        .sidebar-nav a.active i {
            color: #fff;
        }
        .sidebar-footer-note {
            margin-top: auto;
            padding-top: var(--space-md);
            border-top: 1px solid var(--color-border-light);
            font-size: 0.75rem;
            color: var(--color-text-muted);
            line-height: 1.5;
            letter-spacing: 0.02em;
        }

        /* ========== Main Content Container ========== */
        .main-content {
            padding: 0;
            min-height: 100vh;
        }

        /* ========== Page Banner ========== */
        .page-banner {
            position: relative;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center 40%;
            background-repeat: no-repeat;
            min-height: 380px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    var(--color-bg-overlay) 0%,
                    rgba(30, 30, 30, 0.6) 50%,
                    rgba(20, 20, 20, 0.7) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            padding: var(--space-xl) var(--space-md);
            max-width: 720px;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--color-accent-glow);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.06em;
            margin-bottom: var(--space-md);
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
            margin-bottom: var(--space-sm);
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }
        .page-banner .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.7;
            max-width: 560px;
            margin: 0 auto;
        }
        @media screen and (max-width: 768px) {
            .page-banner {
                min-height: 300px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .banner-desc {
                font-size: 0.95rem;
            }
        }

        /* ========== Section Common ========== */
        .section {
            padding: var(--space-2xl) var(--space-lg);
        }
        @media screen and (max-width: 768px) {
            .section {
                padding: var(--space-xl) var(--space-md);
            }
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--space-xl);
        }
        .section-header h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--color-text-strong);
            letter-spacing: 0.03em;
            margin-bottom: var(--space-xs);
        }
        .section-header .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-weak);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-divider {
            width: 48px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
            margin: var(--space-sm) auto var(--space-md);
            opacity: 0.7;
        }

        /* ========== Trend Overview Block ========== */
        .trend-overview {
            background: var(--color-bg-card);
            border-bottom: 1px solid var(--color-border-light);
        }
        .trend-overview .overview-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-xl);
            align-items: center;
            max-width: 1100px;
            margin: 0 auto;
        }
        @media screen and (max-width: 768px) {
            .trend-overview .overview-grid {
                grid-template-columns: 1fr;
                gap: var(--space-lg);
            }
        }
        .trend-overview .overview-text h3 {
            font-size: 1.55rem;
            font-weight: 700;
            margin-bottom: var(--space-sm);
            color: var(--color-text-strong);
            letter-spacing: 0.02em;
        }
        .trend-overview .overview-text p {
            font-size: 1rem;
            color: var(--color-text-weak);
            line-height: 1.8;
            margin-bottom: var(--space-sm);
        }
        .trend-overview .overview-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-md);
        }
        .trend-overview .stat-item {
            background: var(--color-bg-warm);
            border-radius: var(--radius-lg);
            padding: var(--space-lg) var(--space-md);
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .trend-overview .stat-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary-light);
            transform: translateY(-2px);
        }
        .trend-overview .stat-number {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
        }
        .trend-overview .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            margin-top: 4px;
        }

        /* ========== Trend Cards Grid ========== */
        .trend-cards-section {
            background: var(--color-bg);
        }
        .trend-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-lg);
            max-width: 1200px;
            margin: 0 auto;
        }
        @media screen and (max-width: 1024px) {
            .trend-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media screen and (max-width: 520px) {
            .trend-cards-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
        }
        .trend-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .trend-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-5px);
            border-color: var(--color-primary-light);
        }
        .trend-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 4 / 3;
            background: var(--color-bg-warm);
        }
        .trend-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .trend-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .trend-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(30, 30, 30, 0.75);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            color: var(--color-accent-glow);
            padding: 5px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            z-index: 2;
        }
        .trend-card .card-body {
            padding: var(--space-md);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .trend-card .card-body h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-text-strong);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }
        .trend-card .card-body p {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.6;
            flex: 1;
            margin-bottom: var(--space-sm);
        }
        .trend-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-primary);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }
        .trend-card .card-link:hover {
            color: var(--color-primary-dark);
            gap: 10px;
        }
        .trend-card .card-link i {
            font-size: 0.75rem;
            transition: transform var(--transition-fast);
        }
        .trend-card .card-link:hover i {
            transform: translateX(3px);
        }

        /* ========== Data Dashboard ========== */
        .data-dashboard {
            background: var(--color-bg-dark);
            color: var(--color-text-on-dark);
        }
        .data-dashboard .section-header h2 {
            color: #fff;
        }
        .data-dashboard .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .data-dashboard .section-divider {
            background: var(--color-primary-light);
        }
        .dashboard-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-lg);
            max-width: 1100px;
            margin: 0 auto;
        }
        @media screen and (max-width: 1024px) {
            .dashboard-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media screen and (max-width: 520px) {
            .dashboard-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
        }
        .dashboard-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: var(--space-lg);
            text-align: center;
            transition: all var(--transition-base);
            backdrop-filter: blur(4px);
        }
        .dashboard-card:hover {
            background: rgba(255, 255, 255, 0.09);
            border-color: var(--color-primary-light);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            transform: translateY(-3px);
        }
        .dashboard-card .d-icon {
            font-size: 2rem;
            color: var(--color-primary-light);
            margin-bottom: var(--space-sm);
        }
        .dashboard-card .d-number {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
        }
        .dashboard-card .d-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }
        .dashboard-card .d-trend {
            font-size: 0.8rem;
            margin-top: 8px;
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .d-trend.up {
            color: #5DBA88;
        }
        .d-trend.stable {
            color: var(--color-accent-glow);
        }

        /* ========== Articles List ========== */
        .articles-section {
            background: var(--color-bg-card);
        }
        .articles-list {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 1px;
            background: var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
        }
        .article-item {
            background: #fff;
            padding: var(--space-md) var(--space-lg);
            display: flex;
            align-items: center;
            gap: var(--space-md);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .article-item:hover {
            background: var(--color-bg-warm);
        }
        @media screen and (max-width: 600px) {
            .article-item {
                flex-direction: column;
                align-items: flex-start;
                gap: var(--space-xs);
                padding: var(--space-md);
            }
        }
        .article-item .article-num {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-primary);
            min-width: 40px;
            text-align: center;
            opacity: 0.7;
        }
        .article-item .article-info {
            flex: 1;
            min-width: 0;
        }
        .article-item .article-info h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text-strong);
            margin-bottom: 2px;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }
        .article-item .article-info .article-meta {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            display: flex;
            gap: var(--space-md);
            flex-wrap: wrap;
        }
        .article-item .article-arrow {
            color: var(--color-text-muted);
            font-size: 0.85rem;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .article-item:hover .article-arrow {
            color: var(--color-primary);
            transform: translateX(4px);
        }

        /* ========== FAQ Accordion ========== */
        .faq-section {
            background: var(--color-bg);
        }
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        .accordion {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
        }
        .accordion-item {
            border-bottom: 1px solid var(--color-border-light);
            background: var(--color-bg-card);
        }
        .accordion-item:last-child {
            border-bottom: none;
        }
        .accordion-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-strong);
            padding: var(--space-md) var(--space-lg);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            line-height: 1.5;
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
        }
        .accordion-title:hover {
            background: var(--color-bg-warm);
            color: var(--color-primary-dark);
        }
        .accordion-title::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.75rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            margin-left: var(--space-sm);
        }
        .accordion-item.is-active .accordion-title::after {
            transform: rotate(180deg);
            color: var(--color-primary);
        }
        .accordion-item.is-active .accordion-title {
            color: var(--color-primary-dark);
            background: var(--color-bg-warm);
        }
        .accordion-content {
            padding: 0 var(--space-lg) var(--space-md);
            font-size: 0.93rem;
            color: var(--color-text-weak);
            line-height: 1.8;
            display: none;
        }
        .accordion-item.is-active .accordion-content {
            display: block;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            background: linear-gradient(160deg, var(--color-bg-dark) 0%, #2a2418 60%, #3d3220 100%);
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(200, 164, 92, 0.08);
            pointer-events: none;
        }
        .cta-section .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto;
        }
        .cta-section h3 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
            margin-bottom: var(--space-sm);
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: var(--space-lg);
            line-height: 1.7;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-primary);
            color: #fff;
            padding: 13px 30px;
            border-radius: var(--radius-pill);
            font-size: 1rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-btn);
            text-decoration: none;
        }
        .btn-cta:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 6px 22px rgba(184, 148, 58, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-cta:active {
            transform: translateY(0);
            box-shadow: var(--shadow-btn);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            font-size: 0.95rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition-base);
            text-decoration: none;
            margin-left: var(--space-sm);
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        @media screen and (max-width: 520px) {
            .cta-section .cta-btns {
                display: flex;
                flex-direction: column;
                gap: var(--space-sm);
                align-items: center;
            }
            .btn-outline-light {
                margin-left: 0;
            }
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-on-dark);
            padding: var(--space-2xl) var(--space-lg) var(--space-lg);
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: var(--space-xl);
            max-width: 1100px;
            margin: 0 auto;
            padding-bottom: var(--space-lg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        @media screen and (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-lg);
            }
        }
        @media screen and (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
        }
        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: var(--space-sm);
            letter-spacing: 0.03em;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
            letter-spacing: 0.02em;
        }
        .footer-col ul li a:hover {
            color: var(--color-primary-light);
        }
        .footer-bottom {
            max-width: 1100px;
            margin: var(--space-md) auto 0;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.7;
        }
        .footer-bottom .disclaimer {
            font-size: 0.73rem;
            color: rgba(255, 255, 255, 0.35);
            margin-top: 4px;
        }

        /* ========== Utility ========== */
        .text-center {
            text-align: center;
        }
        .mt-lg {
            margin-top: var(--space-lg);
        }
        .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: category3 */
/* ========== 设计变量 ========== */
        :root {
            --color-primary: #1a1a26;
            --color-primary-light: #2a2a3d;
            --color-accent: #b8945c;
            --color-accent-light: #d4b87a;
            --color-accent-subtle: #f5efe4;
            --color-bg: #fafaf7;
            --color-bg-alt: #f3f0eb;
            --color-surface: #ffffff;
            --color-text: #1f1f2b;
            --color-text-strong: #111118;
            --color-text-weak: #6b6b78;
            --color-text-muted: #9494a0;
            --color-border: #e5e2dc;
            --color-border-light: #f0ede7;
            --color-success: #3b7d5c;
            --color-warning: #c98d3b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px 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, 0.13);
            --sidebar-width: 240px;
            --sidebar-width-collapsed: 0px;
            --header-mobile-height: 56px;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --font-stack: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', system-ui, -apple-system, sans-serif;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
            color: var(--color-text-strong);
        }

        /* ========== 布局：App Shell ========== */
        .app-shell {
            display: flex;
            min-height: 100vh;
            position: relative;
        }

        /* ========== 左侧 Sidebar 导航 ========== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--color-primary);
            color: #ffffff;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 28px 0 20px;
            transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.18);
            overflow-y: auto;
        }

        .sidebar-logo {
            padding: 0 24px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.10);
            margin-bottom: 8px;
        }

        .sidebar-logo a {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .sidebar-logo .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-accent);
            display: inline-block;
            flex-shrink: 0;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            padding: 8px 14px;
            gap: 3px;
            flex: 1;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.02em;
        }

        .sidebar-nav a i {
            font-size: 1.05rem;
            width: 20px;
            text-align: center;
            flex-shrink: 0;
            opacity: 0.8;
            transition: opacity var(--transition-fast);
        }

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

        .sidebar-nav a:hover i {
            opacity: 1;
        }

        .sidebar-nav a.active {
            background: rgba(255, 255, 255, 0.12);
            color: #ffffff;
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--color-accent);
            border-radius: var(--radius-md);
        }

        .sidebar-nav a.active i {
            opacity: 1;
            color: var(--color-accent-light);
        }

        .sidebar-footer-info {
            padding: 16px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.40);
            letter-spacing: 0.03em;
            margin-top: auto;
        }

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

        /* ========== 移动端顶部栏 ========== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-mobile-height);
            background: var(--color-primary);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }

        .mobile-header .mobile-logo {
            font-size: 1.15rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.03em;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-header .mobile-logo .logo-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
            display: inline-block;
            flex-shrink: 0;
        }

        .hamburger-btn {
            background: none;
            border: none;
            color: #ffffff;
            font-size: 1.5rem;
            padding: 6px 8px;
            margin-left: auto;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.10);
        }

        /* ========== Overlay（移动端） ========== */
        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background: rgba(0, 0, 0, 0.55);
            z-index: 998;
            transition: opacity var(--transition-smooth);
        }

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

        /* ========== 内容容器 ========== */
        .content-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 32px;
            width: 100%;
        }

        /* ========== 板块间距 ========== */
        .section {
            padding: 56px 0;
        }

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

        .section-lg {
            padding: 72px 0;
        }

        /* ========== Banner ========== */
        .page-banner {
            position: relative;
            padding: 64px 0 56px;
            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;
            color: #ffffff;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 38, 0.88) 0%, rgba(26, 26, 38, 0.65) 50%, rgba(26, 26, 38, 0.78) 100%);
            z-index: 1;
        }

        .page-banner .content-container {
            position: relative;
            z-index: 2;
        }

        .page-banner .banner-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.13);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 50px;
            font-size: 0.82rem;
            letter-spacing: 0.05em;
            color: var(--color-accent-light);
            margin-bottom: 16px;
            font-weight: 500;
        }

        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
            line-height: 1.25;
        }

        .page-banner .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.82);
            max-width: 620px;
            line-height: 1.7;
        }

        /* ========== 数据看板卡片 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: -20px;
            right: -20px;
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: var(--color-accent-subtle);
            opacity: 0.5;
            transition: all var(--transition-smooth);
        }

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

        .stat-card:hover::before {
            transform: scale(1.3);
            opacity: 0.7;
        }

        .stat-card .stat-icon {
            font-size: 1.8rem;
            color: var(--color-accent);
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }

        .stat-card .stat-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text-strong);
            letter-spacing: 0.02em;
            position: relative;
            z-index: 1;
        }

        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            margin-top: 4px;
            position: relative;
            z-index: 1;
        }

        /* ========== 章节标题 ========== */
        .section-header {
            margin-bottom: 36px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-header h2 {
            font-size: 1.85rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--color-text-strong);
        }

        .section-header .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-weak);
            margin-top: 6px;
            max-width: 500px;
        }

        /* ========== 趋势文章卡片网格 ========== */
        .trend-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

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

        .trend-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: transparent;
        }

        .trend-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            height: 200px;
            background: var(--color-bg-alt);
        }

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

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

        .trend-card .card-img-wrap .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 5px 12px;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.73rem;
            font-weight: 600;
            border-radius: 50px;
            letter-spacing: 0.04em;
            z-index: 2;
        }

        .trend-card .card-body {
            padding: 18px 16px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .trend-card .card-body h3 {
            font-size: 1.08rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
            color: var(--color-text-strong);
        }

        .trend-card .card-body p {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            margin-bottom: 12px;
            line-height: 1.6;
            flex: 1;
        }

        .trend-card .card-meta {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        /* ========== 标签云 ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud .tag {
            display: inline-block;
            padding: 8px 18px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--color-text);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .tag-cloud .tag:hover {
            background: var(--color-accent-subtle);
            border-color: var(--color-accent-light);
            color: var(--color-accent);
            transform: translateY(-2px);
            box-shadow: var(--shadow-xs);
        }

        .tag-cloud .tag.hot {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
            font-weight: 600;
        }

        /* ========== 精选分析图文区块 ========== */
        .featured-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }

        .featured-block .featured-img {
            height: 100%;
            min-height: 360px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .featured-block .featured-content {
            padding: 36px 32px 36px 8px;
        }

        .featured-block .featured-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--color-text-strong);
        }

        .featured-block .featured-content p {
            font-size: 0.95rem;
            color: var(--color-text-weak);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .featured-block .featured-content .highlight-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .featured-block .featured-content .highlight-list li {
            padding-left: 20px;
            position: relative;
            font-size: 0.9rem;
            color: var(--color-text);
            line-height: 1.5;
        }

        .featured-block .featured-content .highlight-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--color-accent);
        }

        /* ========== CTA 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            border-radius: 50px;
            transition: all var(--transition-smooth);
            cursor: pointer;
            white-space: nowrap;
            border: none;
            font-family: inherit;
        }

        .btn-primary {
            background: var(--color-accent);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(184, 148, 92, 0.30);
        }

        .btn-primary:hover {
            background: var(--color-accent-light);
            box-shadow: 0 6px 22px rgba(184, 148, 92, 0.40);
            transform: translateY(-2px);
            color: #ffffff;
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--color-accent);
            color: var(--color-accent);
        }

        .btn-outline:hover {
            background: var(--color-accent);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(184, 148, 92, 0.25);
        }

        .btn-ghost {
            background: transparent;
            color: var(--color-text);
            border: 1px solid var(--color-border);
        }

        .btn-ghost:hover {
            background: var(--color-bg-alt);
            border-color: var(--color-text-weak);
            transform: translateY(-1px);
        }

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

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

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

        .faq-item .faq-question {
            width: 100%;
            padding: 18px 20px;
            background: none;
            border: none;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-strong);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-family: inherit;
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
        }

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

        .faq-item .faq-question .faq-icon {
            font-size: 0.85rem;
            color: var(--color-accent);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }

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

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
        }

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

        .faq-item .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.7;
        }

        /* ========== CTA 区域 ========== */
        .cta-section {
            background: var(--color-primary);
            color: #ffffff;
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
        }

        .cta-section h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

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

        /* ========== 分隔线 ========== */
        .divider {
            border: none;
            border-top: 1px solid var(--color-border-light);
            margin: 0;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--color-primary);
            color: #ffffff;
            padding: 48px 32px 28px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            max-width: 1100px;
            margin: 0 auto;
        }

        .footer-col h5 {
            color: #ffffff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

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

        .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-light);
        }

        .footer-bottom {
            max-width: 1100px;
            margin: 28px auto 0;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom .disclaimer {
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.32);
            margin-top: 8px;
            line-height: 1.5;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 响应式设计 ========== */
        @media (max-width: 1024px) {
            .trend-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-block {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .featured-block .featured-img {
                min-height: 240px;
            }
            .featured-block .featured-content {
                padding: 28px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --sidebar-width: 260px;
            }

            .sidebar {
                transform: translateX(-100%);
                width: var(--sidebar-width);
                box-shadow: none;
            }

            .sidebar.open {
                transform: translateX(0);
                box-shadow: 4px 0 30px rgba(0, 0, 0, 0.35);
            }

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

            .mobile-header {
                display: flex;
            }

            .sidebar-overlay.active {
                display: block;
            }

            .content-container {
                padding: 0 16px;
            }

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

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

            .stat-card {
                padding: 18px 14px;
            }
            .stat-card .stat-value {
                font-size: 1.5rem;
            }

            .page-banner {
                padding: 40px 0 36px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner .banner-desc {
                font-size: 0.9rem;
            }

            .section {
                padding: 36px 0;
            }
            .section-lg {
                padding: 44px 0;
            }

            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.3rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .tag-cloud .tag {
                padding: 6px 14px;
                font-size: 0.8rem;
            }

            .featured-block .featured-content {
                padding: 20px 16px;
            }
            .featured-block .featured-content h3 {
                font-size: 1.25rem;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 14px 10px;
                border-radius: var(--radius-md);
            }
            .stat-card .stat-value {
                font-size: 1.3rem;
            }
            .stat-card .stat-label {
                font-size: 0.75rem;
            }
            .page-banner h1 {
                font-size: 1.35rem;
            }
            .content-container {
                padding: 0 12px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .cta-section {
                border-radius: var(--radius-md);
                padding: 28px 16px;
            }
        }

        /* ========== 关闭 sidebar 按钮（移动端sidebar内部） ========== */
        .sidebar-close-btn {
            display: none;
            position: absolute;
            top: 10px;
            right: 12px;
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.3rem;
            cursor: pointer;
            padding: 6px;
            z-index: 10;
        }

        @media (max-width: 768px) {
            .sidebar-close-btn {
                display: block;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #1a1a1a;
            --color-accent: #c8a96e;
            --color-accent-2: #b8956a;
            --color-accent-light: #e8d5b0;
            --color-bg: #fafaf8;
            --color-bg-warm: #f5f2ec;
            --color-bg-dark: #1c1c1c;
            --color-text: #2c2c2c;
            --color-text-weak: #6b6b6b;
            --color-text-light: #9a9a9a;
            --color-border: #e8e5df;
            --color-border-light: #f0ede8;
            --color-white: #ffffff;
            --color-success: #5a8f7b;
            --sidebar-width: 250px;
            --sidebar-bg: #161616;
            --sidebar-text: #c4c4c4;
            --sidebar-active: #c8a96e;
            --sidebar-hover-bg: #222222;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --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, 0.16);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
        }

        *,
        *::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;
            text-rendering: optimizeLegibility;
        }

        body {
            font-family: var(--font-sans);
            color: var(--color-text);
            line-height: 1.7;
            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);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 2px;
        }

        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;
        }

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

        h1 {
            font-size: 2.6rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.9rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.35rem;
        }
        h4 {
            font-size: 1.15rem;
        }

        /* ========== SIDEBAR NAVIGATION ========== */
        .sidebar-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 90;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }
        .sidebar-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--sidebar-bg);
            z-index: 100;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform var(--transition-smooth);
        }

        .sidebar-logo {
            padding: 1.6rem 1.5rem 1.2rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }
        .sidebar-logo a {
            font-size: 1.35rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: color var(--transition-fast);
        }
        .sidebar-logo a:hover {
            color: var(--color-accent);
        }
        .sidebar-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            padding: 1rem 0.8rem;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 11px;
            padding: 0.7rem 1rem;
            border-radius: var(--radius-md);
            color: var(--sidebar-text);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.02em;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 0.9rem;
            opacity: 0.7;
            transition: opacity var(--transition-fast);
        }
        .sidebar-nav a:hover {
            background: var(--sidebar-hover-bg);
            color: #e8e8e8;
        }
        .sidebar-nav a:hover i {
            opacity: 1;
        }
        .sidebar-nav a.active {
            background: rgba(200, 169, 110, 0.12);
            color: var(--sidebar-active);
            font-weight: 600;
        }
        .sidebar-nav a.active i {
            opacity: 1;
            color: var(--sidebar-active);
        }
        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: -0.8rem;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--color-accent);
            border-radius: 0 3px 3px 0;
        }

        .sidebar-footer-info {
            padding: 1rem 1.5rem 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            flex-shrink: 0;
        }
        .sidebar-footer-info p {
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.3);
            line-height: 1.5;
            margin: 0;
        }

        /* Mobile hamburger */
        .mobile-nav-toggle {
            display: none;
            position: fixed;
            top: 12px;
            left: 12px;
            z-index: 110;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--sidebar-bg);
            color: #fff;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: var(--shadow-lg);
            transition: all var(--transition-fast);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .mobile-nav-toggle:hover {
            background: #2a2a2a;
            box-shadow: var(--shadow-xl);
        }
        .mobile-nav-toggle:active {
            transform: scale(0.94);
        }

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

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            padding: 1rem 2rem;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            font-size: 0.85rem;
            color: var(--color-text-weak);
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb-bar a {
            color: var(--color-text-weak);
            transition: color var(--transition-fast);
        }
        .breadcrumb-bar a:hover {
            color: var(--color-accent);
        }
        .breadcrumb-bar .sep {
            color: #ccc;
            font-size: 0.7rem;
        }
        .breadcrumb-bar .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        /* ========== BANNER ========== */
        .page-banner {
            position: relative;
            padding: 5rem 2rem;
            background: url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            display: flex;
            align-items: center;
            min-height: 380px;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(22, 22, 22, 0.8) 0%, rgba(22, 22, 22, 0.45) 50%, rgba(22, 22, 22, 0.7) 100%);
            z-index: 1;
        }
        .page-banner .banner-inner {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }
        .page-banner .banner-tag {
            display: inline-block;
            background: rgba(200, 169, 110, 0.25);
            color: var(--color-accent-light);
            padding: 0.35rem 1rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            margin-bottom: 1rem;
            border: 1px solid rgba(200, 169, 110, 0.3);
        }
        .page-banner h1 {
            color: #ffffff;
            font-size: 2.8rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            letter-spacing: -0.01em;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }
        .page-banner .banner-desc {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            line-height: 1.6;
            max-width: 520px;
            text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 3.5rem 2rem;
        }
        .section-sm {
            padding: 2.5rem 2rem;
        }
        .section-header {
            text-align: center;
            margin-bottom: 2.5rem;
        }
        .section-header h2 {
            margin-bottom: 0.5rem;
        }
        .section-header .section-subtitle {
            color: var(--color-text-weak);
            font-size: 0.95rem;
            max-width: 500px;
            margin: 0 auto;
            line-height: 1.5;
        }
        .section-label {
            display: inline-block;
            text-transform: uppercase;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--color-accent-2);
            margin-bottom: 0.4rem;
        }

        /* ========== CARDS ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .lifestyle-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            border: 1px solid var(--color-border-light);
            height: 100%;
        }
        .lifestyle-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .lifestyle-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #f0ede8;
        }
        .lifestyle-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .lifestyle-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .lifestyle-card .card-img-wrap .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(22, 22, 22, 0.8);
            color: #fff;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            backdrop-filter: blur(6px);
        }
        .lifestyle-card .card-body {
            padding: 1.2rem 1.3rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .lifestyle-card .card-body h3 {
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
            color: var(--color-primary);
            line-height: 1.4;
        }
        .lifestyle-card .card-body p {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            line-height: 1.55;
            flex: 1;
            margin-bottom: 0.8rem;
        }
        .lifestyle-card .card-body .card-meta {
            font-size: 0.75rem;
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            gap: 8px;
            padding-top: 0.6rem;
            border-top: 1px solid var(--color-border-light);
        }
        .lifestyle-card .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--color-accent-2);
            transition: gap var(--transition-fast);
        }
        .lifestyle-card .card-body .card-link:hover {
            gap: 10px;
            color: var(--color-accent);
        }
        .lifestyle-card .card-body .card-link i {
            font-size: 0.7rem;
        }

        /* ========== GUIDE LIST ========== */
        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 800px;
            margin: 0 auto;
        }
        .guide-item {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 1.1rem 1.4rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            cursor: default;
        }
        .guide-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
            transform: translateX(3px);
        }
        .guide-item .guide-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .guide-item .guide-info h4 {
            font-size: 1rem;
            margin-bottom: 2px;
            color: var(--color-primary);
        }
        .guide-item .guide-info p {
            font-size: 0.83rem;
            color: var(--color-text-weak);
            margin: 0;
            line-height: 1.4;
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            text-align: center;
        }
        .stat-block {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 1.8rem 1rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }
        .stat-block:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-block .stat-icon {
            font-size: 1.6rem;
            color: var(--color-accent);
            margin-bottom: 0.6rem;
        }
        .stat-block .stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 0.3rem;
        }
        .stat-block .stat-label {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            letter-spacing: 0.03em;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 750px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            padding: 1rem 1.3rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-primary);
            background: transparent;
            border: none;
            cursor: pointer;
            text-align: left;
            gap: 1rem;
            transition: color var(--transition-fast);
            letter-spacing: 0.01em;
        }
        .faq-question:hover {
            color: var(--color-accent-2);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-bg-warm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.65rem;
            color: var(--color-accent-2);
            transition: all var(--transition-fast);
        }
        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
            background: var(--color-accent);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 1.3rem;
        }
        .faq-answer.open {
            max-height: 300px;
            padding: 0 1.3rem 1rem;
        }
        .faq-answer p {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--color-bg-dark);
            color: #fff;
            text-align: center;
            padding: 3.5rem 2rem;
            border-radius: 0;
        }
        .cta-section h2 {
            color: #fff;
            margin-bottom: 0.6rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            max-width: 500px;
            margin: 0 auto 1.5rem;
            font-size: 0.95rem;
            line-height: 1.5;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.7rem 1.8rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--color-accent);
            color: #1a1a1a;
            border-color: var(--color-accent);
        }
        .btn-primary:hover {
            background: var(--color-accent-2);
            border-color: var(--color-accent-2);
            color: #1a1a1a;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(200, 169, 110, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn:active {
            transform: scale(0.96);
        }
        .btn:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 3rem 2rem 1.5rem;
            font-size: 0.88rem;
            border-top: 4px solid var(--color-accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 2rem;
            max-width: 1100px;
            margin: 0 auto;
            padding-bottom: 2rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-col h5 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 0.8rem;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.4rem;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.82rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            max-width: 1100px;
            margin: 1.5rem auto 0;
            text-align: center;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.35);
            line-height: 1.6;
        }
        .footer-bottom .disclaimer {
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.25);
            margin-top: 0.3rem;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.2rem;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .page-banner {
                padding: 3.5rem 1.5rem;
                min-height: 300px;
            }
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .section {
                padding: 2.5rem 1.5rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --sidebar-width: 260px;
            }
            .sidebar {
                transform: translateX(-100%);
                box-shadow: var(--shadow-xl);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay.active {
                opacity: 1;
                pointer-events: auto;
            }
            .mobile-nav-toggle {
                display: flex;
            }
            .main-content {
                margin-left: 0 !important;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.8rem;
            }
            .guide-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.6rem;
                padding: 1rem;
            }
            .page-banner {
                padding: 2.5rem 1.2rem;
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-desc {
                font-size: 0.9rem;
            }
            .section {
                padding: 2rem 1rem;
            }
            .section-sm {
                padding: 1.5rem 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
                text-align: center;
            }
            .breadcrumb-bar {
                padding: 0.8rem 1rem;
                font-size: 0.78rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .btn {
                padding: 0.6rem 1.4rem;
                font-size: 0.85rem;
            }
            .faq-question {
                font-size: 0.88rem;
                padding: 0.85rem 1rem;
            }
        }

        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 0.6rem;
            }
            .stat-block {
                padding: 1.2rem 0.6rem;
            }
            .stat-block .stat-num {
                font-size: 1.5rem;
            }
            .page-banner {
                min-height: 220px;
                padding: 2rem 1rem;
            }
            .page-banner h1 {
                font-size: 1.4rem;
            }
            .cta-section {
                padding: 2.5rem 1rem;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .lifestyle-card .card-body h3 {
                font-size: 1rem;
            }
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --color-primary: #1a1d2e;
            --color-primary-light: #252a3e;
            --color-accent: #c9a96e;
            --color-accent-hover: #b8944c;
            --color-accent-light: #f0e6d2;
            --color-bg: #faf8f5;
            --color-bg-alt: #f3efe9;
            --color-surface: #ffffff;
            --color-text: #2d2d2d;
            --color-text-strong: #1a1a1a;
            --color-text-weak: #6b6b6b;
            --color-text-muted: #999999;
            --color-border: #e5e0d8;
            --color-border-light: #f0ece5;
            --color-overlay: rgba(26, 29, 46, 0.55);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --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, 0.16);
            --sidebar-width: 240px;
            --sidebar-collapsed: 0px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-serif: 'Georgia', 'Noto Serif SC', 'STSong', serif;
        }

        /* ========== 基础 Reset ========== */
        *,
        *::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;
            background-color: var(--color-bg);
        }

        body {
            font-family: var(--font-sans);
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
            padding-left: var(--sidebar-width);
            transition: padding-left var(--transition-smooth);
        }

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

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

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

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

        ul {
            list-style: none;
        }

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

        /* ========== 侧边栏导航 ========== */
        .sidebar-nav-wrapper {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--color-primary);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            overflow-x: hidden;
            transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.15);
        }

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

        .sidebar-logo a {
            font-size: 1.35rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .sidebar-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            background: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 16px;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 1rem;
            flex-shrink: 0;
        }

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

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

        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 28px;
            background: #ffffff;
            border-radius: 0 4px 4px 0;
        }

        .sidebar-footer-tag {
            padding: 16px 24px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-footer-tag span {
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.75rem;
            letter-spacing: 0.03em;
        }

        /* ========== 移动端顶部栏 ========== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--color-primary);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
        }

        .mobile-topbar .mobile-logo {
            font-size: 1.1rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.03em;
        }

        .mobile-menu-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #ffffff;
            font-size: 1.4rem;
            transition: background var(--transition-fast);
        }

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

        /* 侧边栏遮罩 */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: var(--color-overlay);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-smooth);
            pointer-events: none;
        }

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

        /* ========== 主内容区 ========== */
        .main-content {
            padding: 0;
            min-height: 100vh;
        }

        .content-container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            padding: 18px 0;
            font-size: 0.85rem;
            color: var(--color-text-weak);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .breadcrumb-bar a {
            color: var(--color-text-weak);
        }
        .breadcrumb-bar a:hover {
            color: var(--color-accent);
        }
        .breadcrumb-bar .sep {
            color: var(--color-text-muted);
            font-size: 0.7rem;
        }
        .breadcrumb-bar .current {
            color: var(--color-text-strong);
            font-weight: 600;
        }

        /* ========== Banner 板块 ========== */
        .category-banner {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 340px;
            display: flex;
            align-items: center;
            margin-bottom: 48px;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 29, 46, 0.8) 0%, rgba(26, 29, 46, 0.35) 60%, rgba(26, 29, 46, 0.55) 100%);
            z-index: 1;
        }

        .category-banner-content {
            position: relative;
            z-index: 2;
            padding: 48px 44px;
            max-width: 680px;
        }

        .category-banner-content .banner-tag {
            display: inline-block;
            background: var(--color-accent);
            color: #ffffff;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 18px;
        }

        .category-banner-content h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
            line-height: 1.25;
        }

        .category-banner-content p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 520px;
        }

        /* ========== 板块通用 ========== */
        .section-block {
            margin-bottom: 56px;
        }

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

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text-strong);
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }

        .section-header .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-weak);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .section-header .section-accent-line {
            width: 50px;
            height: 3px;
            background: var(--color-accent);
            margin: 14px auto 0;
            border-radius: 2px;
        }

        /* ========== 品牌矩阵卡片 ========== */
        .brand-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            border: 1px solid var(--color-border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .brand-card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 4 / 3;
        }

        .brand-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .brand-card:hover .brand-card-image img {
            transform: scale(1.06);
        }

        .brand-card-image .brand-badge {
            position: absolute;
            top: 14px;
            right: 14px;
            background: var(--color-primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 16px;
            letter-spacing: 0.05em;
            z-index: 2;
        }

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

        .brand-card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--color-text-strong);
            letter-spacing: 0.02em;
        }

        .brand-card-body .brand-origin {
            font-size: 0.8rem;
            color: var(--color-accent);
            font-weight: 500;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        .brand-card-body p {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }

        .brand-card-body .brand-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            transition: gap var(--transition-fast);
            align-self: flex-start;
        }

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

        .brand-card-body .brand-link i {
            font-size: 0.7rem;
        }

        /* ========== 深度鉴赏区 ========== */
        .deep-dive-block {
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
        }

        .deep-dive-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            align-items: stretch;
        }

        .deep-dive-image {
            position: relative;
            overflow: hidden;
            min-height: 380px;
        }

        .deep-dive-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .deep-dive-text {
            padding: 40px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .deep-dive-text .deep-tag {
            display: inline-block;
            background: var(--color-accent-light);
            color: var(--color-accent-hover);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 14px;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
            align-self: flex-start;
        }

        .deep-dive-text h3 {
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--color-text-strong);
        }

        .deep-dive-text p {
            font-size: 0.95rem;
            color: var(--color-text-weak);
            line-height: 1.8;
            margin-bottom: 10px;
        }

        .deep-dive-text .highlight-stat {
            display: flex;
            gap: 28px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .highlight-stat .stat-item {
            text-align: center;
            min-width: 70px;
        }

        .highlight-stat .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
        }

        .highlight-stat .stat-label {
            font-size: 0.75rem;
            color: var(--color-text-weak);
            margin-top: 4px;
            letter-spacing: 0.03em;
        }

        /* ========== 资讯列表 ========== */
        .news-list-block {
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            padding: 36px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }

        .news-list-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 18px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }

        .news-list-item:first-child {
            padding-top: 0;
        }
        .news-list-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .news-list-item:hover {
            padding-left: 8px;
        }

        .news-thumb {
            width: 90px;
            height: 70px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--color-bg-alt);
        }

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

        .news-info {
            flex: 1;
            min-width: 0;
        }

        .news-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text-strong);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .news-info .news-meta {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .news-info p {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            margin-top: 4px;
            line-height: 1.5;
        }

        /* ========== 数据看板 ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
        }

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

        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--color-accent);
            margin-bottom: 12px;
        }

        .stat-card .stat-value {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-text-strong);
            line-height: 1;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }

        .stat-card .stat-desc {
            font-size: 0.82rem;
            color: var(--color-text-weak);
            letter-spacing: 0.02em;
        }

        /* ========== FAQ 折叠 ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            overflow: hidden;
        }

        .faq-item summary {
            padding: 18px 0;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text-strong);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: color var(--transition-fast);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::marker {
            display: none;
        }

        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
        }

        .faq-item[open] summary .faq-icon {
            background: var(--color-accent);
            color: #fff;
            transform: rotate(45deg);
        }

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

        .faq-item .faq-answer {
            padding: 0 0 16px;
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.7;
        }

        /* ========== CTA 板块 ========== */
        .cta-block {
            background: var(--color-primary);
            border-radius: var(--radius-xl);
            padding: 52px 44px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }

        .cta-block::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.025);
            pointer-events: none;
        }

        .cta-block h2 {
            font-size: 1.9rem;
            color: #ffffff;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .cta-block p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 14px 32px;
            border-radius: 30px;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            position: relative;
            z-index: 1;
            box-shadow: 0 6px 20px rgba(201, 169, 110, 0.3);
        }

        .btn-cta:hover {
            background: var(--color-accent-hover);
            box-shadow: 0 8px 28px rgba(201, 169, 110, 0.45);
            transform: translateY(-2px);
            color: #ffffff;
        }

        .btn-cta:active {
            transform: translateY(0);
            box-shadow: 0 4px 14px rgba(201, 169, 110, 0.3);
        }

        /* ========== 通用按钮 ========== */
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border: 2px solid var(--color-border);
            color: var(--color-text-strong);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 22px;
            border-radius: 24px;
            transition: all var(--transition-fast);
            background: transparent;
        }

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

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            margin-top: 56px;
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 32px 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .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-bottom {
            max-width: 1120px;
            margin: 0 auto;
            padding: 20px 32px 0;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.7;
        }

        .footer-bottom .disclaimer {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.35);
            margin-top: 6px;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 响应式断点 ========== */
        @media screen and (max-width: 1024px) {
            :root {
                --sidebar-width: 220px;
            }
            .content-container {
                padding: 0 24px;
            }
            .category-banner-content {
                padding: 36px 28px;
            }
            .category-banner-content h1 {
                font-size: 2rem;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .deep-dive-grid {
                grid-template-columns: 1fr;
            }
            .deep-dive-image {
                min-height: 260px;
                position: relative;
            }
            .deep-dive-image img {
                position: relative;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media screen and (max-width: 768px) {
            body {
                padding-left: 0 !important;
            }
            .sidebar-nav-wrapper {
                transform: translateX(-100%);
                width: 280px;
                box-shadow: none;
            }
            .sidebar-nav-wrapper.mobile-open {
                transform: translateX(0);
                box-shadow: 4px 0 32px rgba(0, 0, 0, 0.3);
            }
            .sidebar-overlay {
                display: block;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
            .content-container {
                padding: 0 16px;
            }
            .category-banner {
                min-height: 260px;
                border-radius: var(--radius-lg);
                margin-bottom: 32px;
            }
            .category-banner-content {
                padding: 28px 20px;
            }
            .category-banner-content h1 {
                font-size: 1.6rem;
            }
            .category-banner-content p {
                font-size: 0.9rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-card .stat-value {
                font-size: 1.6rem;
            }
            .news-list-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-thumb {
                width: 100%;
                height: 160px;
            }
            .cta-block {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-block h2 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .deep-dive-text {
                padding: 28px 20px;
            }
            .deep-dive-text h3 {
                font-size: 1.3rem;
            }
            .highlight-stat {
                gap: 16px;
            }
            .highlight-stat .stat-number {
                font-size: 1.5rem;
            }
            .section-block {
                margin-bottom: 36px;
            }
            .news-list-block {
                padding: 24px 18px;
            }
        }

        @media screen and (max-width: 520px) {
            .category-banner {
                min-height: 220px;
                border-radius: var(--radius-md);
            }
            .category-banner-content {
                padding: 20px 16px;
            }
            .category-banner-content h1 {
                font-size: 1.35rem;
            }
            .category-banner-content .banner-tag {
                font-size: 0.7rem;
                padding: 4px 12px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card .stat-value {
                font-size: 1.4rem;
            }
            .stat-card .stat-icon {
                font-size: 1.5rem;
                margin-bottom: 8px;
            }
            .brand-card-body {
                padding: 14px 16px 18px;
            }
            .brand-card-body h3 {
                font-size: 1rem;
            }
            .deep-dive-text {
                padding: 20px 16px;
            }
            .deep-dive-text h3 {
                font-size: 1.15rem;
            }
            .cta-block h2 {
                font-size: 1.2rem;
            }
            .btn-cta {
                font-size: 0.85rem;
                padding: 12px 24px;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .faq-item summary {
                font-size: 0.9rem;
                padding: 14px 0;
            }
        }