/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --color-primary: #0b1a2e;
            --color-primary-light: #132a44;
            --color-accent: #d4a853;
            --color-accent-hover: #c49a3f;
            --color-accent-light: #f5e7c8;
            --color-bg: #f8f7f4;
            --color-bg-alt: #eef0f2;
            --color-bg-dark: #0b1a2e;
            --color-text: #1e2a3a;
            --color-text-soft: #5a6a7a;
            --color-text-light: #8a9aaa;
            --color-text-inverse: #ffffff;
            --color-border: #dce0e5;
            --color-border-light: #e8ecf0;
            --color-success: #2a9d5a;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(11, 26, 46, 0.06);
            --shadow-md: 0 8px 24px rgba(11, 26, 46, 0.08);
            --shadow-lg: 0 16px 48px rgba(11, 26, 46, 0.12);
            --shadow-xl: 0 24px 64px rgba(11, 26, 46, 0.16);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            line-height: 1.65;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-accent-hover);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media screen and (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header & Navigation (分屏联动风格) ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px) saturate(180%);
            -webkit-backdrop-filter: blur(16px) saturate(180%);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-accent), #b8943f);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 700;
        }
        .logo-text {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            line-height: 1.2;
        }
        .logo-text span {
            color: var(--color-accent);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .nav-list a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-soft);
            padding: 6px 0;
            position: relative;
            transition: color var(--transition);
        }
        .nav-list a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            transition: width var(--transition);
        }
        .nav-list a:hover {
            color: var(--color-primary);
        }
        .nav-list a:hover::after {
            width: 100%;
        }
        .nav-list a.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .nav-list a.active::after {
            width: 100%;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search {
            width: 180px;
            padding: 8px 16px;
            border: 1px solid var(--color-border);
            border-radius: 50px;
            background: var(--color-bg);
            font-size: 0.9rem;
            color: var(--color-text);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .nav-search:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.15);
            outline: none;
        }
        .nav-search::placeholder {
            color: var(--color-text-light);
        }

        .btn-nav-login {
            padding: 8px 22px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
        }
        .btn-nav-login:hover {
            background: var(--color-primary-light);
            transform: translateY(-1px);
            color: #fff;
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .hamburger span {
            width: 26px;
            height: 2.5px;
            background: var(--color-primary);
            border-radius: 4px;
            transition: all var(--transition);
        }

        @media screen and (max-width: 1024px) {
            .nav-list {
                gap: 16px;
            }
            .nav-search {
                width: 140px;
            }
            .nav-wrap {
                gap: 20px;
            }
        }

        @media screen and (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-wrap {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 24px 20px 32px;
                gap: 24px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                border-bottom: 1px solid var(--color-border-light);
            }
            .nav-wrap.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-list {
                flex-direction: column;
                gap: 16px;
                width: 100%;
            }
            .nav-list a {
                font-size: 1.1rem;
                width: 100%;
                padding: 10px 0;
                border-bottom: 1px solid var(--color-border-light);
            }
            .nav-cta {
                width: 100%;
                flex-direction: column;
                gap: 12px;
            }
            .nav-search {
                width: 100%;
            }
            .btn-nav-login {
                width: 100%;
                text-align: center;
            }
            .logo-text {
                font-size: 1.2rem;
            }
        }

        /* ===== Hero: 分屏布局 ===== */
        .hero-split {
            display: flex;
            min-height: calc(100vh - var(--header-height));
            background: var(--color-bg);
            position: relative;
            overflow: hidden;
        }
        .hero-left {
            flex: 1 1 55%;
            display: flex;
            align-items: center;
            padding: 60px 48px 60px 0;
            position: relative;
            z-index: 2;
        }
        .hero-left .container {
            padding: 0 0 0 24px;
            max-width: 620px;
            margin: 0 0 0 auto;
        }
        .hero-right {
            flex: 1 1 45%;
            background: linear-gradient(135deg, var(--color-primary) 0%, #0d2137 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 60px 40px;
            position: relative;
            overflow: hidden;
        }
        .hero-right::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -30%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(212, 168, 83, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-right::before {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(212, 168, 83, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 4px 16px;
            background: var(--color-accent-light);
            color: var(--color-primary);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .hero-badge i {
            color: var(--color-accent);
        }

        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        .hero-title span {
            color: var(--color-accent);
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 520px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary {
            padding: 14px 36px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 50px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 4px 16px rgba(212, 168, 83, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-primary:hover {
            background: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(212, 168, 83, 0.4);
            color: #fff;
        }
        .btn-secondary {
            padding: 14px 36px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid var(--color-border);
            border-radius: 50px;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(212, 168, 83, 0.05);
        }

        .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--color-border-light);
        }
        .hero-stat-item {
            text-align: left;
        }
        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .hero-stat-number span {
            color: var(--color-accent);
        }
        .hero-stat-label {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin-top: 2px;
        }

        .hero-right-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            max-width: 400px;
        }
        .hero-right-icon {
            font-size: 4rem;
            color: var(--color-accent);
            margin-bottom: 20px;
            opacity: 0.9;
        }
        .hero-right-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .hero-right-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.6;
        }
        .hero-right-features {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-top: 24px;
        }
        .hero-right-features span {
            padding: 6px 18px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(4px);
        }

        @media screen and (max-width: 1024px) {
            .hero-title {
                font-size: 2.6rem;
            }
            .hero-left {
                padding: 48px 32px 48px 0;
            }
            .hero-right {
                padding: 48px 32px;
            }
        }

        @media screen and (max-width: 768px) {
            .hero-split {
                flex-direction: column;
                min-height: auto;
            }
            .hero-left {
                flex: none;
                padding: 48px 16px 32px;
            }
            .hero-left .container {
                max-width: 100%;
                margin: 0 auto;
                padding: 0;
            }
            .hero-right {
                flex: none;
                padding: 48px 24px;
                min-height: 320px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 20px;
                flex-wrap: wrap;
            }
            .hero-stat-number {
                font-size: 1.6rem;
            }
            .hero-right-title {
                font-size: 1.3rem;
            }
        }

        @media screen and (max-width: 520px) {
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
        }

        /* ===== Section共用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--color-bg-alt);
        }
        .section-dark {
            background: var(--color-bg-dark);
            color: #fff;
        }
        .section-sm {
            padding: 48px 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .section-title-light {
            color: #fff;
        }
        .section-desc {
            font-size: 1.1rem;
            color: var(--color-text-soft);
            max-width: 640px;
            line-height: 1.7;
        }
        .section-desc-light {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-header {
            margin-bottom: 48px;
            text-align: center;
        }
        .section-header .section-desc {
            margin: 0 auto;
        }

        @media screen and (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .section-desc {
                font-size: 1rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ===== Cards ===== */
        .card {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px;
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid var(--color-border-light);
            height: 100%;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: var(--color-accent-light);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: 16px;
        }
        .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .card-text {
            font-size: 0.95rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-accent);
        }
        .card-link:hover {
            color: var(--color-accent-hover);
        }
        .card-link i {
            font-size: 0.8rem;
            transition: transform var(--transition);
        }
        .card-link:hover i {
            transform: translateX(4px);
        }

        .card-dark {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.1);
        }
        .card-dark .card-title {
            color: #fff;
        }
        .card-dark .card-text {
            color: rgba(255, 255, 255, 0.7);
        }
        .card-dark .card-icon {
            background: rgba(212, 168, 83, 0.2);
            color: var(--color-accent);
        }

        @media screen and (max-width: 520px) {
            .card {
                padding: 20px 16px;
            }
        }

        /* ===== Grid helpers ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 32px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 28px;
        }

        @media screen and (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media screen and (max-width: 768px) {
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== 分类入口板块 ===== */
        .cat-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .cat-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            display: flex;
            align-items: flex-start;
            gap: 20px;
            transition: all var(--transition);
        }
        .cat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-accent);
        }
        .cat-card-icon {
            flex-shrink: 0;
            width: 60px;
            height: 60px;
            border-radius: var(--radius-sm);
            background: var(--color-accent-light);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
        }
        .cat-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
        }
        .cat-card-body p {
            font-size: 0.93rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            margin-bottom: 10px;
        }
        .cat-card-body a {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .cat-card-body a i {
            font-size: 0.8rem;
            transition: transform var(--transition);
        }
        .cat-card-body a:hover i {
            transform: translateX(4px);
        }

        @media screen and (max-width: 768px) {
            .cat-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cat-card {
                padding: 24px 20px;
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ===== 资讯列表 ===== */
        .post-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .post-card {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            padding: 24px;
            transition: all var(--transition);
        }
        .post-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .post-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--color-text-light);
            margin-bottom: 10px;
        }
        .post-meta .category-tag {
            padding: 2px 12px;
            background: var(--color-accent-light);
            color: var(--color-accent);
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.75rem;
        }
        .post-meta .date {
            color: var(--color-text-light);
        }
        .post-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .post-title a {
            color: inherit;
        }
        .post-title a:hover {
            color: var(--color-accent);
        }
        .post-excerpt {
            font-size: 0.92rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 40px 20px;
            color: var(--color-text-light);
            font-size: 1rem;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px dashed var(--color-border);
        }

        @media screen and (max-width: 768px) {
            .post-list {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== 数据/统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }
        .stat-item {
            padding: 20px;
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--color-text-soft);
            margin-top: 6px;
        }
        .stat-label-light {
            color: rgba(255, 255, 255, 0.7);
        }

        @media screen and (max-width: 768px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stat-number {
                font-size: 2rem;
            }
        }
        @media screen and (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 流程/步骤 ===== */
        .steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            counter-reset: step;
        }
        .step-item {
            text-align: center;
            padding: 32px 20px;
            position: relative;
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            display: block;
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            background: var(--color-accent);
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            border-radius: 50%;
            line-height: 48px;
            text-align: center;
        }
        .step-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .step-desc {
            font-size: 0.92rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }

        @media screen and (max-width: 768px) {
            .steps {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: 18px 0;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            padding: 4px 0;
            transition: color var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question i {
            font-size: 0.9rem;
            color: var(--color-text-light);
            transition: transform var(--transition);
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px 0 0;
            color: var(--color-text-soft);
            line-height: 1.7;
            font-size: 0.95rem;
        }
        .faq-answer.open {
            max-height: 300px;
            padding-top: 12px;
        }

        /* ===== CTA ===== */
        .cta-box {
            background: linear-gradient(135deg, var(--color-primary) 0%, #0d2137 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            position: relative;
            overflow: hidden;
        }
        .cta-box::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(212, 168, 83, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-text h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
        }
        .cta-text p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 480px;
        }
        .cta-action {
            flex-shrink: 0;
            position: relative;
            z-index: 2;
        }
        .btn-cta {
            padding: 16px 40px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: 50px;
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(212, 168, 83, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .btn-cta:hover {
            background: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(212, 168, 83, 0.4);
            color: #fff;
        }

        @media screen and (max-width: 768px) {
            .cta-box {
                flex-direction: column;
                text-align: center;
                padding: 40px 28px;
            }
            .cta-text h2 {
                font-size: 1.4rem;
            }
            .cta-text p {
                max-width: 100%;
            }
            .btn-cta {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 52px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 28px;
        }
        .footer-brand .logo-text {
            color: #fff;
            margin-bottom: 12px;
            display: inline-block;
        }
        .footer-brand .logo-text span {
            color: var(--color-accent);
        }
        .footer-brand p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }
        .footer-social {
            display: flex;
            gap: 16px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 1rem;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--color-accent);
            color: #fff;
            transform: translateY(-2px);
        }

        @media screen and (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media screen and (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 其他辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .gap-12 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* ===== 响应式微调 ===== */
        @media screen and (max-width: 520px) {
            .section-title {
                font-size: 1.5rem;
            }
            .hero-right {
                min-height: 240px;
                padding: 32px 20px;
            }
            .hero-right-title {
                font-size: 1.1rem;
            }
            .hero-right-icon {
                font-size: 2.8rem;
            }
            .hero-stats {
                margin-top: 28px;
                padding-top: 20px;
            }
            .step-item {
                padding: 20px 12px;
            }
            .cta-box {
                padding: 32px 20px;
            }
            .btn-cta {
                font-size: 0.95rem;
                padding: 14px 28px;
            }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0e1a4a;
            --secondary: #e8b830;
            --secondary-light: #f0d060;
            --secondary-dark: #c9a028;
            --accent: #f05454;
            --bg-light: #f8f9fc;
            --bg-white: #ffffff;
            --bg-dark: #0e1a3a;
            --text-dark: #1a1a2e;
            --text-body: #3d405b;
            --text-muted: #7a7d9a;
            --text-light: #f0f0f5;
            --border-color: #e2e4ef;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 108, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 42, 108, 0.10);
            --shadow-lg: 0 16px 48px rgba(26, 42, 108, 0.14);
            --transition: all 0.30s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

        /* ===== Base Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--primary);
        }
        a:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }
        ul {
            list-style: none;
            padding: 0;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo-link:hover {
            color: var(--primary-light);
        }
        .logo-link span {
            color: var(--secondary);
            font-weight: 700;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 24px;
            flex: 1;
            justify-content: flex-end;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-list li a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-list li a:hover {
            background: var(--bg-light);
            color: var(--primary);
        }
        .nav-list li a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(26, 42, 108, 0.25);
        }
        .nav-list li a.active:hover {
            background: var(--primary-light);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            border: 2px solid var(--border-color);
            border-radius: 50px;
            padding: 8px 18px 8px 40px;
            font-size: 0.9rem;
            background: var(--bg-light) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%237a7d9a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E") 14px center no-repeat;
            background-size: 16px;
            width: 180px;
            transition: var(--transition);
            color: var(--text-dark);
        }
        .nav-search:focus {
            border-color: var(--primary);
            background-color: var(--bg-white);
            width: 220px;
            box-shadow: 0 0 0 4px rgba(26, 42, 108, 0.08);
        }
        .nav-search::placeholder {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .btn-nav-login {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--secondary);
            color: var(--primary-dark);
            font-weight: 700;
            padding: 10px 24px;
            border-radius: 50px;
            font-size: 0.9rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            white-space: nowrap;
            box-shadow: 0 4px 12px rgba(232, 184, 48, 0.35);
        }
        .btn-nav-login:hover {
            background: var(--secondary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(232, 184, 48, 0.45);
        }
        .btn-nav-login i {
            font-size: 1rem;
        }

        /* ===== Mobile Menu Toggle ===== */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--primary);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .menu-toggle:hover {
            background: var(--bg-light);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            padding: 70px 0 60px;
            position: relative;
            overflow: hidden;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(232, 184, 48, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            line-height: 1.7;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--secondary);
            color: var(--primary-dark);
            font-weight: 700;
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }

        /* ===== Section Shared ===== */
        .section {
            padding: 70px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            text-align: center;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-sub {
            text-align: center;
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 48px;
            line-height: 1.6;
        }
        .section-sub strong {
            color: var(--primary);
        }

        /* ===== Cards Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .card-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            text-align: center;
        }
        .card-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .card-icon {
            font-size: 2.4rem;
            color: var(--primary);
            margin-bottom: 16px;
            display: inline-block;
            background: var(--bg-light);
            width: 72px;
            height: 72px;
            line-height: 72px;
            border-radius: 50%;
            transition: var(--transition);
        }
        .card-item:hover .card-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .card-item h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .card-item p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .card-tag {
            display: inline-block;
            background: var(--secondary);
            color: var(--primary-dark);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 3px 14px;
            border-radius: 50px;
            margin-top: 12px;
            letter-spacing: 0.3px;
        }

        /* ===== Steps / Timeline ===== */
        .steps-wrap {
            display: flex;
            flex-direction: column;
            gap: 0;
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            padding-left: 40px;
        }
        .steps-wrap::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 4px;
            background: linear-gradient(to bottom, var(--primary), var(--secondary));
            border-radius: 4px;
        }
        .step-item {
            position: relative;
            padding: 0 0 40px 40px;
        }
        .step-item:last-child {
            padding-bottom: 0;
        }
        .step-number {
            position: absolute;
            left: -24px;
            top: 0;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(26, 42, 108, 0.25);
            z-index: 2;
            border: 3px solid var(--bg-light);
        }
        .step-item:nth-child(even) .step-number {
            background: var(--secondary);
            color: var(--primary-dark);
        }
        .step-content {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .step-content:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
            transform: translateX(4px);
        }
        .step-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .step-content p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin: 0;
        }
        .step-content .step-note {
            display: inline-block;
            background: var(--bg-light);
            color: var(--text-muted);
            font-size: 0.8rem;
            padding: 2px 12px;
            border-radius: 50px;
            margin-top: 8px;
            border: 1px solid var(--border-color);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            font-size: 1rem;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            gap: 12px;
        }
        .faq-question:hover {
            background: var(--bg-light);
        }
        .faq-question i {
            color: var(--primary);
            font-size: 1.1rem;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        .faq-answer a {
            color: var(--primary);
            font-weight: 500;
        }

        /* ===== Safety Tips ===== */
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
            margin-top: 8px;
        }
        .safety-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            border-left: 5px solid var(--primary);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .safety-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .safety-card:nth-child(2) {
            border-left-color: var(--secondary);
        }
        .safety-card:nth-child(3) {
            border-left-color: var(--accent);
        }
        .safety-card:nth-child(4) {
            border-left-color: #2d9cdb;
        }
        .safety-card .safety-icon {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .safety-card:nth-child(2) .safety-icon {
            color: var(--secondary-dark);
        }
        .safety-card:nth-child(3) .safety-icon {
            color: var(--accent);
        }
        .safety-card:nth-child(4) .safety-icon {
            color: #2d9cdb;
        }
        .safety-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .safety-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 70px 0;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 520px;
            margin: 0 auto 28px;
        }
        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--secondary);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1.1rem;
            padding: 16px 40px;
            border-radius: 50px;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            box-shadow: 0 8px 24px rgba(232, 184, 48, 0.35);
        }
        .btn-cta-primary:hover {
            background: var(--secondary-light);
            color: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(232, 184, 48, 0.45);
        }
        .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: 50px;
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: var(--transition);
            margin-left: 12px;
        }
        .btn-cta-secondary:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-text {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
        }
        .footer-brand .logo-text span {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 14px;
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            color: rgba(255, 255, 255, 0.4);
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            color: var(--secondary);
            transform: scale(1.15);
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
        }

        @media screen and (max-width: 820px) {
            .nav-list {
                gap: 4px;
            }
            .nav-list li a {
                padding: 6px 14px;
                font-size: 0.85rem;
            }
            .nav-search {
                width: 140px;
                font-size: 0.8rem;
                padding: 6px 14px 6px 34px;
                background-size: 14px;
                background-position: 12px center;
            }
            .nav-search:focus {
                width: 160px;
            }
            .btn-nav-login {
                padding: 8px 16px;
                font-size: 0.8rem;
                gap: 6px;
            }
            .btn-nav-login i {
                font-size: 0.85rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
                gap: 20px;
            }
            .page-hero {
                padding: 50px 0 40px;
            }
            .page-hero h1 {
                font-size: 1.9rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
            .safety-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media screen and (max-width: 640px) {
            .menu-toggle {
                display: block;
            }
            .nav-wrap {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 20px 24px 28px;
                box-shadow: var(--shadow-lg);
                border-bottom: 2px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                gap: 16px;
                z-index: 999;
            }
            .nav-wrap.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list {
                flex-direction: column;
                width: 100%;
                gap: 4px;
            }
            .nav-list li a {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
                font-size: 1rem;
            }
            .nav-cta {
                width: 100%;
                flex-direction: column;
                gap: 10px;
            }
            .nav-search {
                width: 100%;
                max-width: 100%;
                padding: 10px 16px 10px 42px;
                background-position: 14px center;
            }
            .nav-search:focus {
                width: 100%;
            }
            .btn-nav-login {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .page-hero p {
                font-size: 0.95rem;
            }
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-sub {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .card-item {
                padding: 24px 18px 20px;
            }
            .steps-wrap {
                padding-left: 24px;
            }
            .steps-wrap::before {
                left: 8px;
                width: 3px;
            }
            .step-item {
                padding: 0 0 28px 28px;
            }
            .step-number {
                left: -16px;
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .step-content {
                padding: 18px 16px;
            }
            .safety-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .btn-cta-primary,
            .btn-cta-secondary {
                width: 100%;
                justify-content: center;
                margin: 0;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: stretch;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 40px 0 24px;
            }
            .logo-link {
                font-size: 1.3rem;
            }
        }

        @media screen and (max-width: 400px) {
            .page-hero h1 {
                font-size: 1.4rem;
            }
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .card-item h3 {
                font-size: 1.1rem;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-12 {
            margin-top: 12px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }

/* roulang page: article */
/* ========== 设计变量 ========== */
        :root {
            --primary: #1a237e;
            --primary-light: #283593;
            --primary-dark: #0d1452;
            --accent: #ffb300;
            --accent-light: #ffca28;
            --accent-dark: #c79100;
            --bg-body: #f0f2f7;
            --bg-card: #ffffff;
            --bg-section: #ffffff;
            --bg-alt: #e8eaf6;
            --text-primary: #1a202c;
            --text-secondary: #4a5568;
            --text-weak: #8899aa;
            --text-white: #ffffff;
            --border: #e2e8f0;
            --border-light: #f0f0f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --shadow-hover: 0 12px 36px rgba(26, 35, 126, 0.12);
            --transition: all 0.30s cubic-bezier(0.22, 1, 0.36, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
            --max-width: 1200px;
            --content-width: 820px;
            --header-height: 72px;
        }

        /* ========== Reset & Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

        h1 {
            font-size: 2.4rem;
        }
        h2 {
            font-size: 1.8rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.15rem;
        }

        /* ========== 容器 ========== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            max-width: var(--content-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(26, 35, 126, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .logo-text {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 2px;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--accent);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
            justify-content: flex-end;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-list li a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: var(--radius-xs);
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.02em;
        }

        .nav-list li a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.10);
        }

        .nav-list li a.active {
            color: var(--text-white);
            background: rgba(255, 179, 0, 0.18);
        }

        .nav-list li a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px 4px 0 0;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-search {
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: 40px;
            padding: 8px 16px 8px 38px;
            color: var(--text-white);
            font-size: 0.90rem;
            width: 180px;
            transition: var(--transition);
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.5)' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: 12px center;
            background-size: 16px;
        }

        .nav-search::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .nav-search:focus {
            outline: none;
            border-color: var(--accent);
            background-color: rgba(255, 255, 255, 0.18);
            width: 220px;
        }

        .btn-nav-login {
            background: var(--accent);
            color: var(--primary-dark) !important;
            font-weight: 700;
            font-size: 0.90rem;
            padding: 10px 24px;
            border-radius: 40px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-nav-login:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 179, 0, 0.30);
        }

        .btn-nav-login i {
            font-size: 0.85rem;
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.5rem;
            padding: 4px 8px;
            cursor: pointer;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb {
            padding: 20px 0 8px;
            font-size: 0.88rem;
            color: var(--text-weak);
        }

        .breadcrumb a {
            color: var(--text-weak);
        }

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

        .breadcrumb span {
            color: var(--text-secondary);
        }

        .breadcrumb i {
            font-size: 0.6rem;
            margin: 0 8px;
            color: var(--text-weak);
        }

        /* ========== 文章主体 ========== */
        .article-main {
            padding: 20px 0 60px;
        }

        .article-header {
            margin-bottom: 32px;
        }

        .article-category {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 40px;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }

        .article-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            color: var(--text-primary);
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px 24px;
            color: var(--text-weak);
            font-size: 0.90rem;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border);
        }

        .article-meta i {
            margin-right: 6px;
            opacity: 0.7;
        }

        .article-meta .author {
            color: var(--text-secondary);
        }

        .article-body {
            padding: 28px 0 20px;
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-secondary);
        }

        .article-body p {
            margin-bottom: 1.2em;
        }

        .article-body h2,
        .article-body h3 {
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            color: var(--text-primary);
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 1.2em;
            padding-left: 1.6em;
        }

        .article-body ul li {
            list-style: disc;
            margin-bottom: 0.3em;
        }

        .article-body ol li {
            list-style: decimal;
            margin-bottom: 0.3em;
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: var(--accent-dark);
        }

        .article-body blockquote {
            border-left: 4px solid var(--accent);
            background: var(--bg-alt);
            padding: 16px 20px;
            margin: 1.2em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-secondary);
        }

        .article-body img {
            margin: 1.5em auto;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-md);
        }

        .article-body code {
            background: var(--bg-alt);
            padding: 2px 8px;
            border-radius: 4px;
            font-family: var(--font-mono);
            font-size: 0.90em;
            color: var(--primary);
        }

        .article-body pre {
            background: #1a202c;
            color: #e2e8f0;
            padding: 20px 24px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            margin: 1.2em 0;
            font-size: 0.90rem;
            line-height: 1.6;
        }

        .article-body pre code {
            background: none;
            color: inherit;
            padding: 0;
            font-size: inherit;
        }

        /* ========== 文章标签 ========== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            padding: 20px 0 12px;
            border-top: 1px solid var(--border);
            margin-top: 16px;
        }

        .article-tags .tag {
            background: var(--bg-alt);
            color: var(--text-secondary);
            font-size: 0.80rem;
            padding: 5px 14px;
            border-radius: 40px;
            transition: var(--transition);
        }

        .article-tags .tag:hover {
            background: var(--primary);
            color: var(--text-white);
        }

        /* ========== 上下篇导航 ========== */
        .article-nav {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 16px;
            padding: 24px 0;
            border-top: 1px solid var(--border);
            margin-top: 8px;
        }

        .article-nav a {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 500;
            font-size: 0.95rem;
            max-width: 45%;
        }

        .article-nav a:hover {
            color: var(--accent-dark);
        }

        .article-nav .nav-next {
            text-align: right;
            justify-content: flex-end;
        }

        /* ========== 文章未找到 ========== */
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }

        .article-not-found i {
            font-size: 3.6rem;
            color: var(--text-weak);
            margin-bottom: 20px;
        }

        .article-not-found h2 {
            font-size: 1.8rem;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .article-not-found p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .btn-back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: var(--text-white);
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-back-home:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        /* ========== 相关文章 ========== */
        .related-section {
            background: var(--bg-section);
            padding: 60px 0;
            margin-top: 20px;
        }

        .related-section .section-title {
            text-align: center;
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .related-section .section-sub {
            text-align: center;
            color: var(--text-weak);
            margin-bottom: 36px;
            font-size: 0.95rem;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .related-card .card-cat {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }

        .related-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .related-card h3 a {
            color: var(--text-primary);
        }

        .related-card h3 a:hover {
            color: var(--primary);
        }

        .related-card p {
            font-size: 0.88rem;
            color: var(--text-weak);
            line-height: 1.5;
            margin-bottom: 12px;
        }

        .related-card .card-meta {
            font-size: 0.78rem;
            color: var(--text-weak);
        }

        /* ========== FAQ 区块 ========== */
        .faq-section {
            background: var(--bg-alt);
            padding: 60px 0;
        }

        .faq-section .section-title {
            text-align: center;
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .faq-section .section-sub {
            text-align: center;
            color: var(--text-weak);
            margin-bottom: 36px;
            font-size: 0.95rem;
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 20px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-item h4 {
            font-size: 0.98rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .faq-item h4 i {
            color: var(--accent);
            font-size: 0.85rem;
        }

        .faq-item p {
            font-size: 0.90rem;
            color: var(--text-secondary);
            line-height: 1.5;
            margin-left: 22px;
        }

        /* ========== CTA 区块 ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 60px 0;
            text-align: center;
            color: var(--text-white);
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.85;
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: var(--primary-dark) !important;
            font-weight: 700;
            font-size: 1.05rem;
            padding: 16px 40px;
            border-radius: 50px;
            transition: var(--transition);
        }

        .btn-cta-primary:hover {
            background: var(--accent-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(255, 179, 0, 0.35);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0d1452;
            color: rgba(255, 255, 255, 0.75);
            padding: 52px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-brand .logo-text {
            font-size: 1.3rem;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
            margin-top: 10px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.40);
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            color: rgba(255, 255, 255, 0.40);
            font-size: 1.1rem;
            transition: var(--transition);
        }

        .footer-social a:hover {
            color: var(--accent);
            transform: scale(1.15);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

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

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

        @media (max-width: 900px) {
            .nav-list {
                gap: 4px;
            }

            .nav-list li a {
                padding: 6px 12px;
                font-size: 0.88rem;
            }

            .nav-search {
                width: 140px;
            }

            .nav-search:focus {
                width: 160px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }

            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }

            .site-header .container {
                flex-wrap: nowrap;
            }

            .menu-toggle {
                display: block;
            }

            .nav-wrap {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--primary-dark);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 16px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                box-shadow: var(--shadow-lg);
            }

            .nav-wrap.open {
                display: flex;
            }

            .nav-list {
                flex-direction: column;
                width: 100%;
                gap: 4px;
            }

            .nav-list li a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
            }

            .nav-list li a.active::after {
                display: none;
            }

            .nav-cta {
                flex-direction: column;
                width: 100%;
                gap: 10px;
            }

            .nav-search {
                width: 100%;
            }

            .nav-search:focus {
                width: 100%;
            }

            .btn-nav-login {
                width: 100%;
                justify-content: center;
            }

            .article-title {
                font-size: 1.6rem;
            }

            .article-body {
                font-size: 0.98rem;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }

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

            .article-nav {
                flex-direction: column;
            }

            .article-nav a {
                max-width: 100%;
            }

            .article-nav .nav-next {
                text-align: left;
                justify-content: flex-start;
            }

            .cta-section h2 {
                font-size: 1.4rem;
            }

            .btn-cta-primary {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

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

            .article-title {
                font-size: 1.35rem;
            }

            .article-meta {
                font-size: 0.82rem;
                gap: 10px 16px;
            }

            .article-body {
                font-size: 0.92rem;
            }

            .related-card {
                padding: 18px 16px;
            }

            .faq-item {
                padding: 16px 16px;
            }

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

            .footer-grid {
                gap: 20px;
            }

            .footer-col h4 {
                margin-bottom: 10px;
            }
        }

        /* ========== 辅助 ========== */
        .text-center {
            text-align: center;
        }

        .mt-1 {
            margin-top: 8px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }

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

        /* Foundation 覆盖 */
        .grid-container {
            max-width: var(--max-width);
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 520px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #3551a0;
            --primary-dark: #0f1a47;
            --accent: #f0b429;
            --accent-light: #f7d06a;
            --accent-dark: #d49520;
            --bg-body: #f8f9fc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-alt: #eef1f8;
            --bg-dark: #0f1a47;
            --text-primary: #1a1a2e;
            --text-body: #3d3d5c;
            --text-weak: #7a7a9a;
            --text-white: #ffffff;
            --text-accent: #f0b429;
            --border: #e0e4ee;
            --border-light: #f0f2f8;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 108, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 42, 108, 0.08);
            --shadow-lg: 0 12px 40px rgba(26, 42, 108, 0.12);
            --shadow-accent: 0 6px 24px rgba(240, 180, 41, 0.25);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --header-h: 76px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-family);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-primary);
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 0.5rem;
        }

        /* ===== 容器 ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media screen and (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-h);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 0;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1;
        }
        .logo-text span {
            color: var(--accent);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 2rem;
            flex: 1;
            justify-content: flex-end;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        .nav-list li a {
            display: inline-block;
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: background var(--transition), color var(--transition);
            text-decoration: none;
        }
        .nav-list li a:hover,
        .nav-list li a:focus-visible {
            background: var(--bg-alt);
            color: var(--primary);
        }
        .nav-list li a.active {
            background: var(--primary);
            color: var(--text-white);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .nav-search {
            width: 180px;
            padding: 0.45rem 1rem 0.45rem 2.2rem;
            border: 1px solid var(--border);
            border-radius: 50px;
            background: var(--bg-body) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%237a7a9a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E") no-repeat 12px center;
            font-size: 0.875rem;
            color: var(--text-primary);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .nav-search:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(26, 42, 108, 0.12);
        }
        .nav-search::placeholder {
            color: var(--text-weak);
        }
        .btn-nav-login {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1.25rem;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 0.875rem;
            border-radius: 50px;
            text-decoration: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 2px 8px rgba(240, 180, 41, 0.3);
        }
        .btn-nav-login:hover,
        .btn-nav-login:focus-visible {
            background: var(--accent-dark);
            color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(240, 180, 41, 0.35);
        }
        .btn-nav-login i {
            font-size: 0.8rem;
        }
        /* 移动端汉堡 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 0.5rem;
            background: none;
            border: none;
        }
        .hamburger span {
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media screen and (max-width: 1024px) {
            .nav-search {
                width: 140px;
            }
            .nav-wrap {
                gap: 1rem;
            }
        }
        @media screen and (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-wrap {
                position: fixed;
                top: var(--header-h);
                left: 0;
                width: 100%;
                background: var(--bg-white);
                flex-direction: column;
                padding: 1.5rem 1.5rem 2rem;
                gap: 1.25rem;
                box-shadow: var(--shadow-lg);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.4s ease, opacity 0.4s ease;
                border-bottom: 2px solid var(--border-light);
                align-items: stretch;
                border-radius: 0 0 var(--radius) var(--radius);
            }
            .nav-wrap.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list {
                flex-direction: column;
                gap: 0.25rem;
            }
            .nav-list li a {
                display: block;
                padding: 0.7rem 1rem;
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }
            .nav-cta {
                flex-direction: column;
                gap: 0.75rem;
            }
            .nav-search {
                width: 100%;
            }
            .btn-nav-login {
                justify-content: center;
            }
        }

        /* ===== 页面标题区（内页 Banner） ===== */
        .page-banner {
            padding: calc(var(--header-h) + 3rem) 0 2.5rem;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 30% 40%, rgba(240, 180, 41, 0.12) 0%, transparent 60%);
            pointer-events: none;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.02em;
            margin-bottom: 0.6rem;
        }
        .page-banner p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 620px;
            line-height: 1.6;
        }
        .page-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 1.2rem;
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
        }
        .page-banner .breadcrumb a:hover {
            color: var(--text-white);
        }
        .page-banner .breadcrumb span {
            color: var(--accent-light);
        }
        @media screen and (max-width: 768px) {
            .page-banner {
                padding: calc(var(--header-h) + 2rem) 0 2rem;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner p {
                font-size: 0.95rem;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 4.5rem 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.85);
        }
        .section-dark h2,
        .section-dark h3 {
            color: var(--text-white);
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 0.5rem;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-weak);
            max-width: 600px;
            margin: 0 auto;
        }
        @media screen and (max-width: 768px) {
            .section {
                padding: 3rem 0;
            }
            .section-title h2 {
                font-size: 1.6rem;
            }
            .section-title p {
                font-size: 0.95rem;
            }
        }

        /* ===== 卡片通用 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            padding: 1.75rem;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .card .card-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            background: var(--bg-alt);
            color: var(--primary);
            font-size: 1.4rem;
            margin-bottom: 1rem;
        }
        .card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .card p {
            font-size: 0.92rem;
            color: var(--text-weak);
            line-height: 1.6;
        }
        .card .tag {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 50px;
            background: var(--bg-alt);
            color: var(--primary-light);
            margin-top: 0.75rem;
        }

        /* ===== 网格 ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 2rem;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 1.75rem;
        }
        @media screen and (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media screen and (max-width: 768px) {
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.75rem;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 50px;
            text-decoration: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            border: none;
            cursor: pointer;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--text-white);
            box-shadow: 0 4px 14px rgba(26, 42, 108, 0.2);
        }
        .btn-primary:hover,
        .btn-primary:focus-visible {
            background: var(--primary-light);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(26, 42, 108, 0.25);
        }
        .btn-accent {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 4px 14px rgba(240, 180, 41, 0.3);
        }
        .btn-accent:hover,
        .btn-accent:focus-visible {
            background: var(--accent-dark);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(240, 180, 41, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover,
        .btn-outline:focus-visible {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-white {
            background: var(--text-white);
            color: var(--primary);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
        }
        .btn-white:hover,
        .btn-white:focus-visible {
            background: var(--bg-alt);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
        }
        .btn-sm {
            padding: 0.45rem 1.1rem;
            font-size: 0.8rem;
        }
        .btn-lg {
            padding: 0.9rem 2.4rem;
            font-size: 1.05rem;
        }

        /* ===== 徽章 / 标签 ===== */
        .badge {
            display: inline-block;
            padding: 0.25rem 0.85rem;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 50px;
            background: var(--bg-alt);
            color: var(--primary-light);
            letter-spacing: 0.02em;
        }
        .badge-accent {
            background: rgba(240, 180, 41, 0.15);
            color: var(--accent-dark);
        }
        .badge-success {
            background: rgba(34, 197, 94, 0.12);
            color: #15803d;
        }

        /* ===== 统计数字 ===== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            text-align: center;
        }
        .stat-item .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-weak);
            margin-top: 0.25rem;
        }
        @media screen and (max-width: 768px) {
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
        }

        /* ===== 步骤 / 时间轴 ===== */
        .step-list {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            counter-reset: step;
        }
        .step-item {
            display: flex;
            gap: 1.25rem;
            align-items: flex-start;
            counter-increment: step;
        }
        .step-num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(26, 42, 108, 0.15);
        }
        .step-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.2rem;
        }
        .step-content p {
            font-size: 0.9rem;
            color: var(--text-weak);
        }
        .step-content .badge {
            margin-top: 0.4rem;
        }
        @media screen and (max-width: 768px) {
            .step-item {
                flex-direction: column;
                gap: 0.5rem;
            }
            .step-num {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            padding: 1.25rem 1.75rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            width: 100%;
            text-align: left;
            border: none;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: var(--bg-alt);
        }
        .faq-question::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--text-weak);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-question::after {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 1.75rem 1.25rem;
            font-size: 0.92rem;
            color: var(--text-body);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        @media screen and (max-width: 768px) {
            .faq-question {
                padding: 1rem 1.25rem;
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 1.25rem 1rem;
                font-size: 0.88rem;
            }
        }

        /* ===== CTA ===== */
        .cta-box {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            border-radius: var(--radius-lg);
            padding: 3.5rem 4rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 80% 30%, rgba(240, 180, 41, 0.1) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-box .cta-text h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.4rem;
        }
        .cta-box .cta-text p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 480px;
        }
        .cta-box .cta-action {
            flex-shrink: 0;
        }
        @media screen and (max-width: 768px) {
            .cta-box {
                flex-direction: column;
                text-align: center;
                padding: 2.5rem 1.5rem;
            }
            .cta-box .cta-text h3 {
                font-size: 1.4rem;
            }
            .cta-box .cta-text p {
                font-size: 0.9rem;
            }
        }

        /* ===== 内容列表 ===== */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .content-item {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            background: var(--bg-white);
            padding: 1.25rem 1.5rem;
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .content-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-md);
        }
        .content-item .ci-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .content-item .ci-info {
            flex: 1;
        }
        .content-item .ci-info h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.1rem;
        }
        .content-item .ci-info p {
            font-size: 0.85rem;
            color: var(--text-weak);
        }
        .content-item .ci-meta {
            font-size: 0.8rem;
            color: var(--text-weak);
            white-space: nowrap;
        }
        @media screen and (max-width: 768px) {
            .content-item {
                flex-wrap: wrap;
                padding: 1rem 1.25rem;
            }
            .content-item .ci-meta {
                width: 100%;
                margin-top: 0.3rem;
            }
        }

        /* ===== 图文卡片（特色） ===== */
        .feature-card {
            display: flex;
            gap: 1.5rem;
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 1.75rem;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .feature-card .fc-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-sm);
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            flex-shrink: 0;
        }
        .feature-card .fc-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
        }
        .feature-card .fc-body p {
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.6;
        }
        @media screen and (max-width: 768px) {
            .feature-card {
                flex-direction: column;
                gap: 0.75rem;
                padding: 1.25rem;
            }
            .feature-card .fc-icon {
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
            }
        }

        /* ===== 分隔线 ===== */
        .divider {
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 1rem 0 1.5rem;
        }
        .divider.center {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 3.5rem 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo-text {
            color: var(--text-white);
            font-size: 1.5rem;
            display: inline-block;
            margin-bottom: 0.75rem;
        }
        .footer-brand .logo-text span {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1rem;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.5rem 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .footer-social {
            display: flex;
            gap: 1rem;
        }
        .footer-social a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 1.1rem;
            transition: color var(--transition), transform var(--transition);
        }
        .footer-social a:hover {
            color: var(--accent-light);
            transform: translateY(-2px);
        }
        @media screen and (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
        }
        @media screen and (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .gap-1 {
            gap: 1rem;
        }

        /* ===== Foundation 覆盖 ===== */
        .grid-container {
            max-width: var(--max-width);
            padding-left: 24px;
            padding-right: 24px;
        }
        @media screen and (max-width: 768px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        .cell {
            margin-bottom: 0;
        }
        .grid-x>.cell {
            padding: 0;
        }
        .grid-margin-x>.cell {
            padding: 0 0.75rem;
        }
        @media screen and (max-width: 768px) {
            .grid-margin-x>.cell {
                padding: 0 0.5rem;
            }
        }