/* roulang page: index */
:root {
            --color-brand-600: #2563eb;
            --color-brand-700: #1d4ed8;
            --color-brand-800: #1e40af;
            --color-accent-500: #f59e0b;
            --color-accent-600: #d97706;
            --color-surface: #f8fafc;
            --color-deep: #0f172a;
            --color-muted: #64748b;
            --color-border: #e2e8f0;
            --color-text: #1e293b;
            --color-text-weak: #475569;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 0.875rem;
            --radius-xl: 1rem;
            --radius-2xl: 1.25rem;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
            --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 8px 24px rgba(0, 0, 0, 0.04);
            --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            line-height: 1.6;
            color: var(--color-text);
            background-color: #ffffff;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        .container-main {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container-main {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container-main {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* ========== 分屏Hero区域 ========== */
        .hero-split {
            display: grid;
            grid-template-columns: 1fr;
            min-height: 100vh;
            position: relative;
            overflow: hidden;
        }

        @media (min-width: 1024px) {
            .hero-split {
                grid-template-columns: 1fr 1fr;
                min-height: 100vh;
            }
        }

        .hero-split__left {
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            padding: 1.25rem 1.5rem 3rem;
            position: relative;
            z-index: 2;
            background: #ffffff;
        }

        @media (min-width: 768px) {
            .hero-split__left {
                padding: 1.5rem 2.5rem 4rem;
            }
        }

        @media (min-width: 1024px) {
            .hero-split__left {
                padding: 1.75rem 3rem 5rem;
                justify-content: center;
            }
        }

        .hero-split__right {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        @media (min-width: 768px) {
            .hero-split__right {
                min-height: 420px;
            }
        }

        @media (min-width: 1024px) {
            .hero-split__right {
                min-height: auto;
                background-position: center;
            }
        }

        .hero-split__right::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.25) 0%, rgba(30, 64, 175, 0.45) 100%);
            pointer-events: none;
        }

        @media (max-width: 1023px) {
            .hero-split__right {
                order: -1;
            }
        }

        /* ========== 导航在Hero左侧内部 ========== */
        .hero-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
            padding-bottom: 1.25rem;
            margin-bottom: 2rem;
            border-bottom: 1px solid var(--color-border);
        }

        @media (min-width: 1024px) {
            .hero-nav {
                padding-bottom: 1.5rem;
                margin-bottom: 2.5rem;
            }
        }

        .hero-nav__logo {
            font-size: 1.1rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--color-deep);
            white-space: nowrap;
            line-height: 1.2;
            transition: color var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .hero-nav__logo:hover {
            color: var(--color-brand-600);
        }

        .hero-nav__logo i {
            font-size: 1.35rem;
            color: var(--color-brand-600);
        }

        @media (min-width: 768px) {
            .hero-nav__logo {
                font-size: 1.25rem;
            }
            .hero-nav__logo i {
                font-size: 1.5rem;
            }
        }

        .hero-nav__links {
            display: none;
            align-items: center;
            gap: 0.35rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        @media (min-width: 768px) {
            .hero-nav__links {
                display: flex;
                gap: 0.5rem;
            }
        }

        .hero-nav__links a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 1rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.925rem;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .hero-nav__links a:hover {
            color: var(--color-brand-600);
            background-color: #eff6ff;
        }

        .hero-nav__links a.active {
            color: #ffffff;
            background-color: var(--color-brand-600);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
        }

        .hero-nav__links a.active:hover {
            background-color: var(--color-brand-700);
            color: #ffffff;
        }

        .hero-nav__cta {
            display: none;
        }

        @media (min-width: 768px) {
            .hero-nav__cta {
                display: inline-flex;
                align-items: center;
                gap: 0.4rem;
                padding: 0.5rem 1.2rem;
                background: var(--color-accent-500);
                color: #1e293b;
                font-weight: 700;
                font-size: 0.9rem;
                border-radius: var(--radius-lg);
                border: none;
                transition: all var(--transition-smooth);
                white-space: nowrap;
                box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
            }
            .hero-nav__cta:hover {
                background: var(--color-accent-600);
                color: #ffffff;
                transform: translateY(-1px);
                box-shadow: 0 6px 20px rgba(217, 119, 6, 0.35);
            }
        }

        /* 移动端菜单按钮 */
        .mobile-menu-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 2.5rem;
            height: 2.5rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            background: #ffffff;
            color: var(--color-text);
            font-size: 1.25rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .mobile-menu-btn:hover {
            background: #f1f5f9;
            border-color: #cbd5e1;
        }

        @media (min-width: 768px) {
            .mobile-menu-btn {
                display: none;
            }
        }

        /* 移动端抽屉菜单 */
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: 280px;
            max-width: 85vw;
            height: 100vh;
            background: #ffffff;
            z-index: 999;
            box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15);
            transition: right var(--transition-smooth);
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            right: 0;
        }

        .mobile-drawer__overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.5);
            z-index: 998;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }

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

        .mobile-drawer__close {
            align-self: flex-end;
            width: 2.25rem;
            height: 2.25rem;
            border-radius: 50%;
            border: 1px solid var(--color-border);
            background: #ffffff;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .mobile-drawer__close:hover {
            background: #f1f5f9;
        }

        .mobile-drawer a {
            display: block;
            padding: 0.7rem 1rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
        }

        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            color: var(--color-brand-600);
            background-color: #eff6ff;
        }

        .mobile-drawer a.active {
            color: #ffffff;
            background-color: var(--color-brand-600);
        }

        .mobile-drawer__cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
            padding: 0.65rem 1.25rem;
            background: var(--color-accent-500);
            color: #1e293b;
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: var(--radius-lg);
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            margin-top: 0.5rem;
            text-align: center;
        }

        .mobile-drawer__cta:hover {
            background: var(--color-accent-600);
            color: #ffffff;
        }

        /* Hero内容区 */
        .hero-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 1rem;
            max-width: 560px;
        }

        .hero-content__badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.35rem 0.85rem;
            background: #eff6ff;
            color: var(--color-brand-700);
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.825rem;
            width: fit-content;
            border: 1px solid #bfdbfe;
        }

        .hero-content__badge i {
            font-size: 0.7rem;
            color: var(--color-accent-500);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.6);
            }
        }

        .hero-content h1 {
            font-size: 2rem;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.02em;
            color: var(--color-deep);
            margin: 0;
        }

        @media (min-width: 768px) {
            .hero-content h1 {
                font-size: 2.75rem;
            }
        }

        @media (min-width: 1024px) {
            .hero-content h1 {
                font-size: 3rem;
            }
        }

        .hero-content h1 .highlight {
            color: var(--color-brand-600);
            position: relative;
        }

        .hero-content__desc {
            font-size: 1.05rem;
            color: var(--color-muted);
            line-height: 1.7;
            margin: 0;
            max-width: 480px;
        }

        @media (min-width: 768px) {
            .hero-content__desc {
                font-size: 1.1rem;
            }
        }

        .hero-content__actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-top: 0.5rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.75rem;
            background: var(--color-brand-600);
            color: #ffffff;
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: var(--radius-xl);
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary:hover {
            background: var(--color-brand-700);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(30, 64, 175, 0.4);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.6rem;
            background: transparent;
            color: var(--color-brand-600);
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: var(--radius-xl);
            border: 2px solid var(--color-brand-600);
            cursor: pointer;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: #eff6ff;
            border-color: var(--color-brand-700);
            color: var(--color-brand-700);
            transform: translateY(-1px);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.75rem;
            background: var(--color-accent-500);
            color: #1e293b;
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: var(--radius-xl);
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
            white-space: nowrap;
        }

        .btn-accent:hover {
            background: var(--color-accent-600);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(217, 119, 6, 0.4);
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: 3.5rem 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 5rem 0;
            }
        }

        @media (min-width: 1024px) {
            .section {
                padding: 6rem 0;
            }
        }

        .section--gray {
            background-color: var(--color-surface);
        }

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

        .section__header {
            text-align: center;
            margin-bottom: 2.5rem;
        }

        @media (min-width: 768px) {
            .section__header {
                margin-bottom: 3.5rem;
            }
        }

        .section__label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--color-brand-600);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 0.5rem;
        }

        .section--deep .section__label {
            color: #93c5fd;
        }

        .section__title {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--color-deep);
            margin: 0 0 0.6rem;
            line-height: 1.25;
        }

        @media (min-width: 768px) {
            .section__title {
                font-size: 2rem;
            }
        }

        .section--deep .section__title {
            color: #ffffff;
        }

        .section__subtitle {
            font-size: 1rem;
            color: var(--color-muted);
            margin: 0 auto;
            max-width: 560px;
            line-height: 1.6;
        }

        .section--deep .section__subtitle {
            color: #cbd5e1;
        }

        /* ========== 卡片组件 ========== */
        .card {
            background: #ffffff;
            border-radius: var(--radius-2xl);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: all var(--transition-smooth);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-xl);
            border-color: #cbd5e1;
        }

        .card__icon {
            width: 3rem;
            height: 3rem;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            margin-bottom: 1rem;
            flex-shrink: 0;
        }

        .card__icon--blue {
            background: #eff6ff;
            color: var(--color-brand-600);
        }

        .card__icon--amber {
            background: #fffbeb;
            color: var(--color-accent-500);
        }

        .card__icon--green {
            background: #f0fdf4;
            color: #16a34a;
        }

        .card__icon--purple {
            background: #faf5ff;
            color: #7c3aed;
        }

        .card__title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-deep);
            margin: 0 0 0.4rem;
        }

        .card__text {
            font-size: 0.925rem;
            color: var(--color-muted);
            line-height: 1.6;
            margin: 0;
            flex: 1;
        }

        /* ========== 分类入口卡片 ========== */
        .category-card {
            position: relative;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            transition: all var(--transition-smooth);
            display: block;
            aspect-ratio: 4 / 3;
            min-height: 260px;
        }

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

        .category-card__img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .category-card:hover .category-card__img {
            transform: scale(1.05);
        }

        .category-card__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.8) 0%, rgba(15, 23, 42, 0.2) 50%, rgba(15, 23, 42, 0.05) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 1.5rem;
        }

        .category-card__tag {
            display: inline-block;
            padding: 0.25rem 0.7rem;
            background: rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(4px);
            color: #ffffff;
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 600;
            width: fit-content;
            margin-bottom: 0.5rem;
        }

        .category-card__title {
            font-size: 1.25rem;
            font-weight: 800;
            color: #ffffff;
            margin: 0 0 0.25rem;
            line-height: 1.3;
        }

        .category-card__arrow {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            color: #fbbf24;
            font-weight: 600;
            font-size: 0.875rem;
            transition: gap var(--transition-fast);
        }

        .category-card:hover .category-card__arrow {
            gap: 0.6rem;
        }

        /* ========== 统计数字 ========== */
        .stat-block {
            text-align: center;
            padding: 1rem;
        }

        .stat-block__number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--color-brand-600);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 0.35rem;
        }

        @media (min-width: 768px) {
            .stat-block__number {
                font-size: 3rem;
            }
        }

        .section--deep .stat-block__number {
            color: #fbbf24;
        }

        .stat-block__label {
            font-size: 0.9rem;
            color: var(--color-muted);
            font-weight: 500;
        }

        .section--deep .stat-block__label {
            color: #cbd5e1;
        }

        /* ========== 信息列表卡片 ========== */
        .info-card {
            background: #ffffff;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

        .info-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: #cbd5e1;
        }

        .info-card__thumb {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }

        .info-card__body {
            padding: 1.2rem 1.3rem 1.3rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .info-card__category {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-brand-600);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 0.35rem;
        }

        .info-card__title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-deep);
            margin: 0 0 0.4rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .info-card__desc {
            font-size: 0.875rem;
            color: var(--color-muted);
            line-height: 1.5;
            margin: 0 0 0.75rem;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .info-card__meta {
            font-size: 0.8rem;
            color: #94a3b8;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding-top: 0.75rem;
            border-top: 1px solid #f1f5f9;
        }

        .info-card__link {
            color: var(--color-brand-600);
            font-weight: 600;
            font-size: 0.875rem;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            transition: gap var(--transition-fast);
        }

        .info-card__link:hover {
            gap: 0.55rem;
            color: var(--color-brand-700);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

        .faq-item:hover {
            border-color: #cbd5e1;
            box-shadow: var(--shadow-sm);
        }

        .faq-item__question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.1rem 1.3rem;
            background: none;
            border: none;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-deep);
            cursor: pointer;
            text-align: left;
            gap: 1rem;
            transition: all var(--transition-fast);
        }

        .faq-item__question:hover {
            color: var(--color-brand-600);
            background: #fafbff;
        }

        .faq-item__question i {
            font-size: 0.8rem;
            color: var(--color-muted);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }

        .faq-item.open .faq-item__question i {
            transform: rotate(180deg);
            color: var(--color-brand-600);
        }

        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 1.3rem;
        }

        .faq-item.open .faq-item__answer {
            max-height: 300px;
            padding: 0 1.3rem 1.1rem;
        }

        .faq-item__answer p {
            margin: 0;
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.65;
        }

        /* ========== CTA区块 ========== */
        .cta-block {
            background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
            border-radius: var(--radius-2xl);
            padding: 2.5rem 1.5rem;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }

        @media (min-width: 768px) {
            .cta-block {
                padding: 3.5rem 2.5rem;
            }
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 350px;
            height: 350px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-block::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -15%;
            width: 280px;
            height: 280px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-block>* {
            position: relative;
            z-index: 1;
        }

        .cta-block__title {
            font-size: 1.5rem;
            font-weight: 800;
            margin: 0 0 0.75rem;
            letter-spacing: -0.01em;
        }

        @media (min-width: 768px) {
            .cta-block__title {
                font-size: 1.9rem;
            }
        }

        .cta-block__desc {
            font-size: 1rem;
            color: #bfdbfe;
            margin: 0 auto 1.5rem;
            max-width: 500px;
            line-height: 1.6;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 3rem 0 2rem;
            font-size: 0.9rem;
        }

        @media (min-width: 768px) {
            .site-footer {
                padding: 4rem 0 2.5rem;
            }
        }

        .site-footer__grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        @media (min-width: 768px) {
            .site-footer__grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }

        .site-footer__brand {
            font-size: 1.15rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 0.5rem;
        }

        .site-footer__desc {
            font-size: 0.875rem;
            color: #94a3b8;
            line-height: 1.6;
            max-width: 320px;
        }

        .site-footer__heading {
            font-size: 0.9rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .site-footer__links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }

        .site-footer__links a {
            color: #94a3b8;
            font-size: 0.875rem;
            transition: color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        .site-footer__links a:hover {
            color: #ffffff;
        }

        .site-footer__bottom {
            border-top: 1px solid #1e293b;
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.8rem;
            color: #64748b;
        }

        /* ========== 响应式补充 ========== */
        @media (max-width: 767px) {
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .hero-content__desc {
                font-size: 0.95rem;
            }
            .btn-primary,
            .btn-accent,
            .btn-outline {
                font-size: 0.875rem;
                padding: 0.65rem 1.3rem;
            }
            .section__title {
                font-size: 1.4rem;
            }
            .card {
                padding: 1.2rem;
            }
            .stat-block__number {
                font-size: 2rem;
            }
            .cta-block__title {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .hero-split__left {
                padding: 1rem 1rem 2rem;
            }
            .hero-content h1 {
                font-size: 1.45rem;
            }
            .hero-content__actions {
                flex-direction: column;
                gap: 0.5rem;
            }
            .hero-content__actions .btn-primary,
            .hero-content__actions .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .hero-nav {
                padding-bottom: 0.75rem;
                margin-bottom: 1.25rem;
            }
            .hero-nav__logo {
                font-size: 1rem;
            }
            .section {
                padding: 2.5rem 0;
            }
            .category-card {
                min-height: 200px;
            }
            .info-card__body {
                padding: 1rem;
            }
        }

        /* 焦点可见样式 */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--color-brand-600);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: category1 */
:root {
            --color-brand: #2563eb;
            --color-brand-light: #3b82f6;
            --color-brand-dark: #1d4ed8;
            --color-accent: #f59e0b;
            --color-accent-light: #fbbf24;
            --color-success: #10b981;
            --color-surface: #f8fafc;
            --color-card: #ffffff;
            --color-text: #1e293b;
            --color-text-soft: #475569;
            --color-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-deep: #0f172a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
            --shadow-glow: 0 0 0 4px rgba(37,99,235,0.12);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-surface);
            overflow-x: hidden;
        }

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

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

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

        input {
            font-family: inherit;
            outline: none;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255,255,255,0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition-smooth);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 28px;
            height: 60px;
            max-width: 1280px;
            margin: 0 auto;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-brand);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .nav-logo i {
            font-size: 1.35rem;
            color: var(--color-brand);
        }
        .nav-logo:hover {
            color: var(--color-brand-dark);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--color-brand);
            background: #eff6ff;
        }
        .nav-links a.active {
            color: var(--color-brand);
            background: #eff6ff;
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-brand);
            border-radius: 3px;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            border-radius: 25px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--color-brand-light), var(--color-brand));
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: 0 2px 10px rgba(37,99,235,0.3);
            white-space: nowrap;
        }
        .nav-cta-btn:hover {
            background: linear-gradient(135deg, var(--color-brand), var(--color-brand-dark));
            box-shadow: 0 4px 18px rgba(37,99,235,0.4);
            transform: translateY(-1px);
        }
        .nav-cta-btn:active {
            transform: scale(0.97);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--color-text);
            padding: 8px;
            cursor: pointer;
            border-radius: 8px;
            transition: background var(--transition-fast);
        }
        .mobile-menu-btn:hover {
            background: #f1f5f9;
        }
        .nav-links-mobile-wrap {
            display: none;
            position: absolute;
            top: 60px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-lg);
            padding: 12px 20px;
            flex-direction: column;
            gap: 4px;
            z-index: 99;
        }
        .nav-links-mobile-wrap.open {
            display: flex;
        }
        .nav-links-mobile-wrap a {
            display: block;
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
        }
        .nav-links-mobile-wrap a:hover,
        .nav-links-mobile-wrap a.active {
            color: var(--color-brand);
            background: #eff6ff;
        }

        /* ========== 内页 Banner ========== */
        .page-banner {
            position: relative;
            min-height: 340px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(150deg, #1e3a8a 0%, #1d4ed8 35%, #2563eb 65%, #3b82f6 100%);
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.28;
            mix-blend-mode: overlay;
        }
        .page-banner__decor {
            position: absolute;
            border-radius: 50%;
            pointer-events: none;
        }
        .page-banner__decor--1 {
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255,255,255,0.10) 0%, transparent 70%);
            top: -80px;
            right: -60px;
        }
        .page-banner__decor--2 {
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(245,158,11,0.14) 0%, transparent 70%);
            bottom: -40px;
            left: -50px;
        }
        .page-banner__decor--3 {
            width: 120px;
            height: 120px;
            background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
            top: 50%;
            left: 60%;
            transform: translate(-50%, -50%);
        }
        .page-banner__content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 40px 24px;
            max-width: 700px;
        }
        .page-banner__badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            color: #fde68a;
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255,255,255,0.18);
            margin-bottom: 18px;
            letter-spacing: 0.03em;
        }
        .page-banner__title {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .page-banner__subtitle {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.85);
            margin: 0 0 8px;
            line-height: 1.6;
        }
        .page-banner__breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.7);
            margin-top: 8px;
        }
        .page-banner__breadcrumb a {
            color: rgba(255,255,255,0.85);
            transition: color var(--transition-fast);
        }
        .page-banner__breadcrumb a:hover {
            color: #fff;
        }
        .page-banner__breadcrumb .sep {
            font-size: 0.7rem;
        }

        /* ========== 容器 ========== */
        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding: 64px 0;
        }
        .section-pad-sm {
            padding: 40px 0;
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-deep);
            text-align: center;
            margin: 0 0 10px;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-muted);
            text-align: center;
            margin: 0 0 40px;
            line-height: 1.6;
        }

        /* ========== 步骤流程 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 44px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: linear-gradient(90deg, var(--color-border), var(--color-brand-light), var(--color-border));
            border-radius: 1px;
            z-index: 0;
            pointer-events: none;
        }
        .step-card {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 24px 16px 20px;
            background: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            transition: all var(--transition-smooth);
        }
        .step-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-brand-light);
        }
        .step-card__num {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-brand-light), var(--color-brand));
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 auto 16px;
            box-shadow: 0 4px 14px rgba(37,99,235,0.3);
        }
        .step-card__title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-deep);
            margin: 0 0 6px;
        }
        .step-card__desc {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.5;
        }

        /* ========== 文章卡片网格 ========== */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #cbd5e1;
        }
        .article-card__img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #e2e8f0;
        }
        .article-card__img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .article-card:hover .article-card__img-wrap img {
            transform: scale(1.05);
        }
        .article-card__badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 5px 12px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #fff;
            background: var(--color-brand);
            z-index: 2;
        }
        .article-card__body {
            padding: 18px 18px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card__title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-deep);
            margin: 0 0 8px;
            line-height: 1.4;
            transition: color var(--transition-fast);
        }
        .article-card:hover .article-card__title {
            color: var(--color-brand);
        }
        .article-card__excerpt {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            margin: 0 0 14px;
            line-height: 1.55;
            flex: 1;
        }
        .article-card__meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--color-muted);
            border-top: 1px solid var(--color-border);
            padding-top: 12px;
        }
        .article-card__meta i {
            margin-right: 4px;
        }
        .article-card__link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-brand);
            transition: gap var(--transition-fast);
        }
        .article-card__link:hover {
            gap: 8px;
        }

        /* ========== 优势亮点 ========== */
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .benefit-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--color-card);
            padding: 22px 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            transition: all var(--transition-smooth);
        }
        .benefit-item:hover {
            box-shadow: var(--shadow-md);
            border-color: #cbd5e1;
        }
        .benefit-item__icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: #fff;
            background: linear-gradient(135deg, var(--color-brand-light), var(--color-brand));
        }
        .benefit-item__icon.accent {
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
        }
        .benefit-item__icon.success {
            background: linear-gradient(135deg, #34d399, var(--color-success));
        }
        .benefit-item__text h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-deep);
            margin: 0 0 4px;
        }
        .benefit-item__text p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            margin: 0;
            line-height: 1.5;
        }

        /* ========== 统计区块 ========== */
        .stats-bar {
            background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 100%);
            border-radius: var(--radius-xl);
            padding: 40px 32px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .stats-bar::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .stat-item {
            position: relative;
            z-index: 1;
        }
        .stat-item__num {
            font-size: 2.4rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-item__label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.8);
            font-weight: 500;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: #cbd5e1;
        }
        .faq-item summary {
            padding: 18px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-deep);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: color var(--transition-fast);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--color-muted);
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--color-brand);
        }
        .faq-item[open] summary {
            color: var(--color-brand);
        }
        .faq-item .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.93rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }

        /* ========== CTA 区块 ========== */
        .cta-block {
            background: linear-gradient(150deg, #1e3a8a 0%, #2563eb 50%, #3b82f6 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255,255,255,0.10) 0%, transparent 70%);
            top: -80px;
            right: -60px;
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-block__title {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 0 0 10px;
            position: relative;
            z-index: 1;
        }
        .cta-block__desc {
            font-size: 1rem;
            color: rgba(255,255,255,0.85);
            margin: 0 0 28px;
            position: relative;
            z-index: 1;
        }
        .cta-block__btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 28px;
            font-size: 1.05rem;
            font-weight: 700;
            color: #1e3a8a;
            background: #fff;
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            box-shadow: 0 6px 24px rgba(0,0,0,0.2);
            position: relative;
            z-index: 1;
        }
        .cta-block__btn:hover {
            background: #f8fafc;
            box-shadow: 0 10px 32px rgba(0,0,0,0.28);
            transform: translateY(-2px);
        }
        .cta-block__btn:active {
            transform: scale(0.96);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--color-deep);
            color: #cbd5e1;
            padding: 48px 0 28px;
        }
        .site-footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .site-footer__brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .site-footer__desc {
            font-size: 0.88rem;
            color: #94a3b8;
            line-height: 1.6;
            margin: 0;
            max-width: 360px;
        }
        .site-footer__heading {
            font-size: 0.95rem;
            font-weight: 600;
            color: #e2e8f0;
            margin-bottom: 14px;
        }
        .site-footer__links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .site-footer__links li {
            margin-bottom: 8px;
        }
        .site-footer__links a {
            font-size: 0.88rem;
            color: #94a3b8;
            transition: color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer__links a:hover {
            color: #fff;
        }
        .site-footer__bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: #64748b;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid::before {
                display: none;
            }
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .benefits-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .page-banner__title {
                font-size: 2.2rem;
            }
            .site-footer__grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 0 16px;
                height: 54px;
            }
            .nav-links {
                display: none;
            }
            .nav-cta-btn {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .page-banner {
                min-height: 260px;
            }
            .page-banner__title {
                font-size: 1.7rem;
            }
            .page-banner__subtitle {
                font-size: 0.95rem;
            }
            .section-pad {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .articles-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .benefits-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                padding: 28px 20px;
                gap: 18px;
            }
            .stat-item__num {
                font-size: 1.8rem;
            }
            .cta-block {
                padding: 34px 22px;
            }
            .cta-block__title {
                font-size: 1.35rem;
            }
            .site-footer__grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .container-main {
                padding: 0 16px;
            }
        }
        @media (max-width: 520px) {
            .page-banner {
                min-height: 220px;
            }
            .page-banner__title {
                font-size: 1.4rem;
            }
            .page-banner__badge {
                font-size: 0.72rem;
                padding: 4px 12px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .step-card {
                padding: 16px 14px;
            }
            .step-card__num {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
            .stats-bar {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .cta-block__btn {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
        }

/* roulang page: article */
:root {
            --color-primary: #1e40af;
            --color-primary-light: #3b82f6;
            --color-primary-soft: #dbeafe;
            --color-accent: #f59e0b;
            --color-accent-light: #fbbf24;
            --color-accent-soft: #fef3c7;
            --color-success: #10b981;
            --color-success-soft: #d1fae5;
            --color-bg: #f1f5f9;
            --color-bg-alt: #f8fafc;
            --color-white: #ffffff;
            --color-text: #0f172a;
            --color-text-strong: #1e293b;
            --color-text-muted: #64748b;
            --color-text-light: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
            --shadow-lg: 0 10px 32px rgba(0,0,0,0.12);
            --shadow-xl: 0 20px 48px rgba(0,0,0,0.14);
            --transition-fast: 150ms ease;
            --transition: 250ms ease;
            --transition-slow: 400ms ease;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --max-width: 1200px;
            --max-width-content: 780px;
            --nav-height: 62px;
        }

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

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

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

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

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

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

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

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

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

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .hero-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .hero-nav__logo {
            display: flex;
            align-items: center;
            gap: 9px;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: -0.01em;
            flex-shrink: 0;
        }

        .hero-nav__logo i {
            font-size: 1.35rem;
            color: var(--color-primary-light);
        }

        .hero-nav__links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .hero-nav__links a {
            padding: 8px 18px;
            border-radius: 22px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .hero-nav__links a:hover {
            color: var(--color-primary);
            background: var(--color-primary-soft);
        }

        .hero-nav__links a.active {
            color: var(--color-primary);
            background: var(--color-primary-soft);
            font-weight: 600;
        }

        .hero-nav__cta {
            display: flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.93rem;
            white-space: nowrap;
            flex-shrink: 0;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
            color: #7c2d12;
            box-shadow: 0 2px 8px rgba(245,158,11,0.35);
            transition: all var(--transition);
        }

        .hero-nav__cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(245,158,11,0.45);
            background: linear-gradient(135deg, var(--color-accent-light), #fcd34d);
        }

        .hero-nav__cta i {
            font-size: 0.9rem;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            font-size: 1.4rem;
            color: var(--color-text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-menu-btn:hover {
            background: var(--color-bg);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.45);
            z-index: 998;
        }

        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 0;
            right: -300px;
            width: 280px;
            height: 100vh;
            background: var(--color-white);
            z-index: 999;
            padding: 24px;
            flex-direction: column;
            gap: 16px;
            transition: right var(--transition);
            box-shadow: var(--shadow-xl);
        }

        .mobile-menu-panel.open {
            right: 0;
        }

        .mobile-menu-panel a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius);
            font-weight: 500;
            font-size: 1rem;
            color: var(--color-text);
            transition: all var(--transition-fast);
        }

        .mobile-menu-panel a:hover,
        .mobile-menu-panel a.active {
            background: var(--color-primary-soft);
            color: var(--color-primary);
        }

        .mobile-menu-panel .close-btn {
            align-self: flex-end;
            background: none;
            font-size: 1.5rem;
            color: var(--color-text-muted);
            padding: 4px 8px;
            border-radius: 6px;
        }

        .mobile-menu-panel .close-btn:hover {
            background: var(--color-bg);
        }

        /* ========== 内页Banner ========== */
        .inner-banner {
            position: relative;
            background: linear-gradient(160deg, #1e3a5f 0%, #1e40af 40%, #1e3a5f 100%);
            padding: 48px 0;
            overflow: hidden;
            min-height: 180px;
            display: flex;
            align-items: center;
        }

        .inner-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }

        .inner-banner::after {
            content: '';
            position: absolute;
            bottom: -30px;
            right: -40px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255,255,255,0.04);
            pointer-events: none;
        }

        .inner-banner__content {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            gap: 8px;
            color: var(--color-white);
        }

        .inner-banner__category {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,255,255,0.18);
            backdrop-filter: blur(6px);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            width: fit-content;
            letter-spacing: 0.02em;
        }

        .inner-banner__category i {
            font-size: 0.75rem;
            opacity: 0.85;
        }

        .inner-banner__title {
            font-size: 1.65rem;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: -0.01em;
            max-width: 700px;
        }

        .inner-banner__meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.88rem;
            opacity: 0.85;
            flex-wrap: wrap;
        }

        .inner-banner__meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            padding: 14px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

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

        .breadcrumb .separator {
            color: var(--color-text-light);
            font-size: 0.7rem;
        }

        .breadcrumb .current {
            color: var(--color-text-strong);
            font-weight: 500;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 340px;
        }

        /* ========== 文章主体布局 ========== */
        .article-layout {
            padding: 40px 0 60px;
        }

        .article-layout .container-main {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 36px;
            align-items: start;
        }

        /* ========== 文章主内容区 ========== */
        .article-main {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            overflow: hidden;
        }

        .article-cover {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            border-bottom: 1px solid var(--color-border-light);
        }

        .article-body {
            padding: 32px 36px 40px;
        }

        .article-body h1 {
            font-size: 1.8rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--color-text-strong);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .article-body .article-meta-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            padding-bottom: 20px;
            margin-bottom: 28px;
            border-bottom: 1px solid var(--color-border-light);
            font-size: 0.9rem;
            color: var(--color-text-muted);
        }

        .article-body .article-meta-row .meta-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: var(--color-primary-soft);
            color: var(--color-primary);
            padding: 5px 12px;
            border-radius: 16px;
            font-weight: 500;
            font-size: 0.82rem;
        }

        .article-body .article-content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--color-text);
            word-break: break-word;
        }

        .article-body .article-content h2 {
            font-size: 1.4rem;
            font-weight: 700;
            margin: 36px 0 16px;
            color: var(--color-text-strong);
            padding-left: 14px;
            border-left: 4px solid var(--color-primary);
            line-height: 1.4;
        }

        .article-body .article-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 28px 0 12px;
            color: var(--color-text-strong);
        }

        .article-body .article-content p {
            margin-bottom: 16px;
            text-align: justify;
        }

        .article-body .article-content ul,
        .article-body .article-content ol {
            margin: 12px 0 20px;
            padding-left: 24px;
        }

        .article-body .article-content li {
            margin-bottom: 8px;
        }

        .article-body .article-content blockquote {
            border-left: 4px solid var(--color-accent);
            background: var(--color-accent-soft);
            padding: 16px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
            color: #7c2d12;
            font-style: italic;
        }

        .article-body .article-content img {
            border-radius: var(--radius);
            margin: 20px 0;
            width: 100%;
            box-shadow: var(--shadow-sm);
        }

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

        .article-body .article-content a:hover {
            color: var(--color-primary);
        }

        .article-body .article-content code {
            background: var(--color-bg);
            padding: 3px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            font-family: "SF Mono", "Fira Code", "Consolas", monospace;
            color: #e11d48;
        }

        .article-body .article-content pre {
            background: #1e293b;
            color: #e2e8f0;
            padding: 20px 24px;
            border-radius: var(--radius);
            overflow-x: auto;
            margin: 20px 0;
            font-size: 0.9rem;
            line-height: 1.6;
        }

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

        .article-tags-row {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--color-border-light);
        }

        .article-tags-row .tag-label {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        .article-tags-row .tag {
            padding: 6px 14px;
            border-radius: 18px;
            background: var(--color-bg);
            color: var(--color-text-muted);
            font-size: 0.82rem;
            font-weight: 500;
            transition: all var(--transition-fast);
        }

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

        /* ========== 侧边栏 ========== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: calc(var(--nav-height) + 24px);
        }

        .sidebar-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 24px;
        }

        .sidebar-card__title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-strong);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card__title i {
            color: var(--color-accent);
            font-size: 1rem;
        }

        .sidebar-cta-card {
            background: linear-gradient(145deg, #1e40af, #1e3a8a);
            color: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
        }

        .sidebar-cta-card::before {
            content: '';
            position: absolute;
            top: -30px;
            right: -30px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            pointer-events: none;
        }

        .sidebar-cta-card::after {
            content: '';
            position: absolute;
            bottom: -20px;
            left: -20px;
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(255,255,255,0.05);
            pointer-events: none;
        }

        .sidebar-cta-card__icon {
            font-size: 2.5rem;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .sidebar-cta-card__title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
            position: relative;
            z-index: 1;
        }

        .sidebar-cta-card__desc {
            font-size: 0.88rem;
            opacity: 0.85;
            margin-bottom: 18px;
            position: relative;
            z-index: 1;
            line-height: 1.5;
        }

        .sidebar-cta-card__btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 11px 24px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.93rem;
            background: var(--color-accent);
            color: #7c2d12;
            position: relative;
            z-index: 1;
            transition: all var(--transition);
            box-shadow: 0 4px 14px rgba(245,158,11,0.4);
        }

        .sidebar-cta-card__btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(245,158,11,0.5);
            background: var(--color-accent-light);
        }

        .sidebar-link-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .sidebar-link-list li a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
            font-weight: 500;
        }

        .sidebar-link-list li a:hover {
            background: var(--color-primary-soft);
            color: var(--color-primary);
        }

        .sidebar-link-list li a i {
            font-size: 0.7rem;
            color: var(--color-accent);
        }

        /* ========== 相关推荐 ========== */
        .related-section {
            padding: 40px 0 60px;
            background: var(--color-white);
            border-top: 1px solid var(--color-border-light);
        }

        .related-section__heading {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-text-strong);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .related-section__heading i {
            color: var(--color-accent);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

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

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

        .related-card__img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }

        .related-card__body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .related-card__tag {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-primary-soft);
            padding: 3px 10px;
            border-radius: 12px;
            width: fit-content;
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }

        .related-card__title {
            font-size: 0.95rem;
            font-weight: 600;
            line-height: 1.45;
            color: var(--color-text-strong);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card__title a {
            color: inherit;
            transition: color var(--transition-fast);
        }

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

        .related-card__date {
            font-size: 0.8rem;
            color: var(--color-text-light);
            margin-top: auto;
        }

        /* ========== CTA区域 ========== */
        .cta-section {
            padding: 60px 0;
            background: linear-gradient(160deg, #f8fafc 0%, #eff6ff 50%, #fef3c7 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(59,130,246,0.06);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(245,158,11,0.06);
            pointer-events: none;
        }

        .cta-inner {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .cta-inner__badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-success-soft);
            color: #065f46;
            padding: 7px 16px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 16px;
        }

        .cta-inner__badge .pulse-dot {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--color-success);
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.6); }
        }

        .cta-inner__title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-text-strong);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .cta-inner__desc {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .cta-inner__actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
            color: #7c2d12;
            box-shadow: 0 6px 20px rgba(245,158,11,0.4);
            transition: all var(--transition);
        }

        .btn-primary-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(245,158,11,0.5);
            background: linear-gradient(135deg, var(--color-accent-light), #fcd34d);
        }

        .btn-secondary-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            background: var(--color-white);
            color: var(--color-primary);
            border: 2px solid var(--color-primary-soft);
            transition: all var(--transition);
        }

        .btn-secondary-cta:hover {
            background: var(--color-primary-soft);
            border-color: var(--color-primary-light);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .site-footer__grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .site-footer__brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #f1f5f9;
            margin-bottom: 10px;
        }

        .site-footer__desc {
            font-size: 0.88rem;
            line-height: 1.65;
            color: #94a3b8;
            max-width: 320px;
        }

        .site-footer__heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: #e2e8f0;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .site-footer__links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .site-footer__links li a {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            color: #94a3b8;
            transition: color var(--transition-fast);
        }

        .site-footer__links li a:hover {
            color: #e2e8f0;
        }

        .site-footer__bottom {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: #64748b;
        }

        /* ========== 未找到 ========== */
        .not-found-block {
            text-align: center;
            padding: 80px 24px;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
        }

        .not-found-block__icon {
            font-size: 4rem;
            color: var(--color-text-light);
            margin-bottom: 20px;
        }

        .not-found-block__title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-strong);
            margin-bottom: 10px;
        }

        .not-found-block__desc {
            color: var(--color-text-muted);
            margin-bottom: 24px;
            font-size: 1rem;
        }

        .not-found-block__btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 12px 26px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.95rem;
            background: var(--color-primary);
            color: #fff;
            transition: all var(--transition);
        }

        .not-found-block__btn:hover {
            background: #1e3a8a;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .article-layout .container-main {
                grid-template-columns: 1fr 280px;
                gap: 24px;
            }

            .related-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }

            .article-body {
                padding: 24px 24px 32px;
            }
        }

        @media (max-width: 768px) {
            .hero-nav__links {
                display: none;
            }

            .hero-nav__cta {
                display: none;
            }

            .mobile-menu-btn {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .mobile-menu-overlay.active {
                display: block;
            }

            .mobile-menu-panel.active {
                display: flex;
            }

            .article-layout .container-main {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .article-sidebar {
                position: static;
                top: auto;
            }

            .inner-banner {
                padding: 32px 0;
                min-height: 140px;
            }

            .inner-banner__title {
                font-size: 1.3rem;
            }

            .article-body h1 {
                font-size: 1.45rem;
            }

            .article-body {
                padding: 20px 20px 28px;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

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

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

            .site-footer__grid > :first-child {
                grid-column: 1 / -1;
            }

            .breadcrumb .current {
                max-width: 200px;
            }
        }

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

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

            .hero-nav {
                padding: 0 16px;
            }

            .hero-nav__logo {
                font-size: 1rem;
            }

            .hero-nav__logo i {
                font-size: 1.15rem;
            }

            .inner-banner {
                padding: 24px 0;
                min-height: 120px;
            }

            .inner-banner__title {
                font-size: 1.1rem;
            }

            .inner-banner__category {
                font-size: 0.78rem;
                padding: 4px 10px;
            }

            .inner-banner__meta {
                font-size: 0.78rem;
                gap: 10px;
            }

            .article-body {
                padding: 16px 16px 24px;
            }

            .article-body h1 {
                font-size: 1.25rem;
            }

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

            .article-body .article-content h2 {
                font-size: 1.15rem;
            }

            .article-body .article-content h3 {
                font-size: 1.05rem;
            }

            .related-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .related-card__body {
                padding: 12px 14px 14px;
            }

            .related-card__title {
                font-size: 0.85rem;
            }

            .cta-inner__title {
                font-size: 1.25rem;
            }

            .cta-inner__desc {
                font-size: 0.9rem;
            }

            .btn-primary-cta,
            .btn-secondary-cta {
                padding: 12px 22px;
                font-size: 0.9rem;
                border-radius: 24px;
            }

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

            .site-footer {
                padding: 32px 0 20px;
            }

            .sidebar-cta-card {
                padding: 20px 16px;
            }

            .breadcrumb {
                font-size: 0.8rem;
            }

            .breadcrumb .current {
                max-width: 140px;
            }
        }