/* roulang page: index */
:root {
            --color-brand: #2563eb;
            --color-brand-dark: #1d4ed8;
            --color-accent: #c026d3;
            --color-surface: #f8fafc;
            --color-text: #1e293b;
            --color-text-weak: #64748b;
            --color-border: #e2e8f0;
            --radius-lg: 0.875rem;
            --radius-xl: 1rem;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04);
            --transition-fast: 180ms ease;
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            line-height: 1.7;
            color: #1e293b;
            background-color: #ffffff;
            overflow-x: hidden;
        }

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

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

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

        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 640px) {
            .container-custom {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* 导航样式 */
        .nav-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            transition: box-shadow var(--transition-smooth);
        }
        .nav-header.scrolled {
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
            gap: 1.5rem;
        }
        .nav-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: #1e293b;
            white-space: nowrap;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }
        .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .nav-links {
            display: none;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        @media (min-width: 768px) {
            .nav-links {
                display: flex;
            }
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.9rem;
            border-radius: 0.5rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: #475569;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: #1e293b;
            background: #f1f5f9;
        }
        .nav-links a.active-nav {
            color: #2563eb;
            background: #eff6ff;
            font-weight: 600;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }
        .nav-search {
            display: none;
            align-items: center;
            background: #f1f5f9;
            border-radius: 0.5rem;
            padding: 0.4rem 0.75rem;
            gap: 0.4rem;
            border: 1px solid transparent;
            transition: all var(--transition-fast);
            cursor: text;
        }
        @media (min-width: 768px) {
            .nav-search {
                display: flex;
            }
        }
        .nav-search:hover {
            border-color: #cbd5e1;
            background: #fff;
        }
        .nav-search:focus-within {
            border-color: #2563eb;
            background: #fff;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.08);
        }
        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.85rem;
            color: #1e293b;
            width: 130px;
        }
        .nav-search input::placeholder {
            color: #94a3b8;
        }
        .nav-search .search-icon {
            color: #94a3b8;
            font-size: 0.85rem;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 1.1rem;
            border-radius: 0.5rem;
            font-size: 0.85rem;
            font-weight: 600;
            background: #2563eb;
            color: #fff;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: #1d4ed8;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
            transform: translateY(-1px);
        }
        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25);
        }
        .mobile-menu-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 0.5rem;
            border: 1px solid #e2e8f0;
            background: #fff;
            color: #475569;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        @media (min-width: 768px) {
            .mobile-menu-btn {
                display: none;
            }
        }
        .mobile-menu-btn:hover {
            background: #f1f5f9;
            border-color: #cbd5e1;
        }
        .mobile-menu {
            display: none;
            position: absolute;
            top: 60px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid #e2e8f0;
            padding: 1rem 1.25rem;
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
            flex-direction: column;
            gap: 0.5rem;
            z-index: 99;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            padding: 0.65rem 0.9rem;
            border-radius: 0.5rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: #475569;
            transition: all var(--transition-fast);
        }
        .mobile-menu a:hover {
            background: #f1f5f9;
            color: #1e293b;
        }
        .mobile-menu a.active-nav {
            color: #2563eb;
            background: #eff6ff;
            font-weight: 600;
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: linear-gradient(160deg, #0f172a 0%, #1e3a8a 40%, #172554 100%);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            opacity: 0.35;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: radial-gradient(ellipse at 30% 50%, rgba(37, 99, 235, 0.25) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 60%, rgba(192, 38, 211, 0.15) 0%, transparent 50%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 4rem 0;
            max-width: 680px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 0.4rem 0.9rem;
            border-radius: 999px;
            font-size: 0.8rem;
            color: #bfdbfe;
            font-weight: 500;
            margin-bottom: 1.25rem;
            backdrop-filter: blur(6px);
        }
        .hero-badge .badge-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #60a5fa;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 0 0 rgba(96, 165, 250, 0.6);
            }
            50% {
                opacity: 0.7;
                box-shadow: 0 0 0 8px rgba(96, 165, 250, 0);
            }
        }
        .hero-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin: 0 0 1rem;
            letter-spacing: -0.02em;
        }
        @media (min-width: 640px) {
            .hero-title {
                font-size: 2.8rem;
            }
        }
        @media (min-width: 1024px) {
            .hero-title {
                font-size: 3.3rem;
            }
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, #60a5fa, #e879f9);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 1.05rem;
            color: #cbd5e1;
            line-height: 1.7;
            margin: 0 0 2rem;
            max-width: 560px;
        }
        @media (min-width: 640px) {
            .hero-desc {
                font-size: 1.15rem;
            }
        }
        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.7rem 1.5rem;
            border-radius: 0.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
            text-decoration: none;
        }
        .btn-primary {
            background: #2563eb;
            color: #fff;
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
        }
        .btn-primary:hover {
            background: #1d4ed8;
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
        }
        .btn-outline-light {
            background: transparent;
            color: #e2e8f0;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.55);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-light:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: #2563eb;
            border: 1.5px solid #2563eb;
        }
        .btn-outline:hover {
            background: #eff6ff;
            border-color: #1d4ed8;
            color: #1d4ed8;
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }

        /* 板块通用 */
        .section {
            padding: 3.5rem 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: 5rem 0;
            }
        }
        .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: 0.8rem;
            font-weight: 600;
            color: #2563eb;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 0.5rem;
        }
        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: #1e293b;
            margin: 0 0 0.6rem;
            letter-spacing: -0.02em;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2rem;
            }
        }
        .section-desc {
            font-size: 0.95rem;
            color: #64748b;
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.65;
        }

        /* 特色卡片 */
        .features-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }
        @media (min-width: 640px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.5rem;
            }
        }
        .feature-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            border: 1px solid #e2e8f0;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-elevated, 0 4px 24px -4px rgba(0, 0, 0, 0.10));
            border-color: #cbd5e1;
            transform: translateY(-3px);
        }
        .feature-card .card-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            margin-bottom: 1rem;
            flex-shrink: 0;
        }
        .feature-card .card-icon.blue {
            background: #eff6ff;
            color: #2563eb;
        }
        .feature-card .card-icon.purple {
            background: #fdf4ff;
            color: #c026d3;
        }
        .feature-card .card-icon.green {
            background: #f0fdf4;
            color: #16a34a;
        }
        .feature-card .card-icon.amber {
            background: #fffbeb;
            color: #d97706;
        }
        .feature-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #1e293b;
            margin: 0 0 0.4rem;
        }
        .feature-card p {
            font-size: 0.88rem;
            color: #64748b;
            margin: 0;
            line-height: 1.6;
        }

        /* 统计数字 */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.25rem;
        }
        @media (min-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.5rem;
            }
        }
        .stat-item {
            text-align: center;
            padding: 1.5rem 1rem;
            background: #fff;
            border-radius: var(--radius-xl);
            border: 1px solid #e2e8f0;
            transition: all var(--transition-smooth);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-card);
            border-color: #cbd5e1;
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #2563eb;
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 0.35rem;
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 2.5rem;
            }
        }
        .stat-label {
            font-size: 0.85rem;
            color: #64748b;
            font-weight: 500;
        }

        /* 内容列表 */
        .content-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }
        @media (min-width: 768px) {
            .content-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.25rem;
            }
        }
        @media (min-width: 1024px) {
            .content-list {
                grid-template-columns: repeat(3, 1fr);
                gap: 1.5rem;
            }
        }
        .content-card {
            background: #fff;
            border-radius: var(--radius-xl);
            border: 1px solid #e2e8f0;
            overflow: hidden;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            box-shadow: var(--shadow-card);
            border-color: #cbd5e1;
            transform: translateY(-2px);
        }
        .content-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: #f1f5f9;
            flex-shrink: 0;
        }
        .content-card .card-body {
            padding: 1rem 1.25rem 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .content-card .card-meta {
            font-size: 0.75rem;
            color: #94a3b8;
            margin-bottom: 0.35rem;
            display: flex;
            gap: 0.6rem;
            align-items: center;
        }
        .content-card .card-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            color: #2563eb;
            background: #eff6ff;
            padding: 0.15rem 0.5rem;
            border-radius: 4px;
        }
        .content-card h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #1e293b;
            margin: 0 0 0.4rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-card .card-excerpt {
            font-size: 0.82rem;
            color: #64748b;
            margin: 0;
            line-height: 1.55;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: #2563eb;
            margin-top: 0.75rem;
            transition: all var(--transition-fast);
        }
        .content-card .card-link:hover {
            color: #1d4ed8;
            gap: 0.5rem;
        }
        .content-empty {
            text-align: center;
            padding: 2.5rem 1rem;
            color: #94a3b8;
            font-size: 0.95rem;
            grid-column: 1 / -1;
        }

        /* 亮点区块 */
        .highlight-block {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            align-items: center;
        }
        @media (min-width: 768px) {
            .highlight-block {
                grid-template-columns: 1fr 1fr;
                gap: 3rem;
            }
        }
        .highlight-block.reverse {
            direction: ltr;
        }
        @media (min-width: 768px) {
            .highlight-block.reverse .highlight-text {
                order: -1;
            }
        }
        .highlight-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .highlight-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        .highlight-text h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #1e293b;
            margin: 0 0 0.75rem;
            letter-spacing: -0.01em;
        }
        @media (min-width: 768px) {
            .highlight-text h3 {
                font-size: 1.6rem;
            }
        }
        .highlight-text p {
            font-size: 0.95rem;
            color: #64748b;
            margin: 0 0 1.25rem;
            line-height: 1.7;
        }
        .highlight-text ul {
            list-style: none;
            padding: 0;
            margin: 0 0 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .highlight-text ul li {
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
            font-size: 0.9rem;
            color: #475569;
        }
        .highlight-text ul li .check-icon {
            color: #16a34a;
            flex-shrink: 0;
            margin-top: 0.15rem;
        }

        /* CTA 板块 */
        .cta-section {
            background: linear-gradient(135deg, #1e3a8a 0%, #172554 100%);
            border-radius: var(--radius-xl);
            padding: 2.5rem 1.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        @media (min-width: 768px) {
            .cta-section {
                padding: 3.5rem 2.5rem;
            }
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(96, 165, 250, 0.2) 0%, transparent 55%);
            pointer-events: none;
        }
        .cta-section>* {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 0.6rem;
        }
        @media (min-width: 768px) {
            .cta-section h2 {
                font-size: 1.9rem;
            }
        }
        .cta-section p {
            font-size: 0.95rem;
            color: #cbd5e1;
            margin: 0 auto 1.5rem;
            max-width: 500px;
            line-height: 1.6;
        }
        .cta-section .btn-primary {
            font-size: 1rem;
            padding: 0.75rem 2rem;
            border-radius: 0.6rem;
        }

        /* FAQ */
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: #cbd5e1;
        }
        .faq-item summary {
            padding: 1.1rem 1.25rem;
            font-weight: 600;
            font-size: 0.95rem;
            color: #1e293b;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-arrow {
            transition: transform var(--transition-fast);
            color: #94a3b8;
            flex-shrink: 0;
            font-size: 0.8rem;
        }
        .faq-item[open] summary .faq-arrow {
            transform: rotate(180deg);
            color: #2563eb;
        }
        .faq-item .faq-answer {
            padding: 0 1.25rem 1.1rem;
            font-size: 0.88rem;
            color: #64748b;
            line-height: 1.65;
        }

        /* Footer */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 2.5rem 0 2rem;
        }
        .footer-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 1.25rem;
        }
        @media (min-width: 768px) {
            .footer-inner {
                flex-direction: row;
                justify-content: space-between;
                text-align: left;
            }
        }
        .footer-brand {
            font-weight: 700;
            font-size: 1rem;
            color: #e2e8f0;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.25rem;
            justify-content: center;
        }
        @media (min-width: 768px) {
            .footer-links {
                justify-content: flex-end;
            }
        }
        .footer-links a {
            font-size: 0.85rem;
            color: #94a3b8;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: #e2e8f0;
        }
        .footer-copy {
            font-size: 0.8rem;
            color: #64748b;
            margin-top: 0.25rem;
        }

        /* 背景块 */
        .bg-soft {
            background: #f8fafc;
        }
        .bg-dark-soft {
            background: #f1f5f9;
        }

/* roulang page: category1 */
:root {
            --color-primary: #f59e0b;
            --color-primary-hover: #d97706;
            --color-primary-light: #fbbf24;
            --color-accent: #38bdf8;
            --color-accent-hover: #0284c7;
            --color-bg-dark: #0f172a;
            --color-bg-card: #1e293b;
            --color-bg-card-hover: #253348;
            --color-bg-elevated: #1a2235;
            --color-text-primary: #f1f5f9;
            --color-text-secondary: #cbd5e1;
            --color-text-muted: #94a3b8;
            --color-border: #334155;
            --color-border-light: #475569;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 40px rgba(245, 158, 11, 0.15);
            --shadow-glow-strong: 0 0 60px rgba(245, 158, 11, 0.25);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            background-color: var(--color-bg-dark);
            color: var(--color-text-primary);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(15, 23, 42, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(51, 65, 85, 0.6);
            transition: all var(--transition-smooth);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 32px;
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }

        .logo-text:hover {
            color: var(--color-primary);
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, #f59e0b, #fbbf24);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #0f172a;
            font-weight: 900;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: block;
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-links li a.active-nav {
            color: #fff;
            background: rgba(245, 158, 11, 0.15);
            font-weight: 600;
        }

        .nav-links li a.active-nav::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .search-trigger {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--color-border);
            border-radius: 10px;
            color: var(--color-text-muted);
            font-size: 0.875rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .search-trigger:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--color-border-light);
            color: #fff;
        }

        .search-trigger i {
            font-size: 0.85rem;
        }

        .nav-cta {
            display: inline-block;
            padding: 9px 22px;
            background: linear-gradient(135deg, #f59e0b, #d97706);
            color: #0f172a;
            font-weight: 700;
            font-size: 0.875rem;
            border-radius: 10px;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 12px rgba(245, 158, 11, 0.3);
        }

        .nav-cta:hover {
            background: linear-gradient(135deg, #fbbf24, #f59e0b);
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.45);
            transform: translateY(-1px);
        }

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

        .mobile-menu-btn:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 23, 42, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 99;
            padding: 24px;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-nav-overlay.active {
            display: flex;
        }

        .mobile-nav-overlay a {
            display: block;
            padding: 14px 20px;
            border-radius: var(--radius-md);
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
        }

        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active-nav {
            background: rgba(245, 158, 11, 0.12);
            color: #fff;
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            padding: 80px 0 90px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.75) 0%, rgba(15, 23, 42, 0.88) 60%, rgba(15, 23, 42, 0.96) 100%);
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(ellipse at center, rgba(245, 158, 11, 0.12) 0%, transparent 70%);
            z-index: 2;
            pointer-events: none;
            border-radius: 50%;
        }

        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(245, 158, 11, 0.18);
            border: 1px solid rgba(245, 158, 11, 0.35);
            border-radius: 50px;
            font-size: 0.85rem;
            color: #fbbf24;
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.02em;
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin: 0 0 20px;
            letter-spacing: -0.03em;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, #f59e0b, #fbbf24, #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0 0 36px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: linear-gradient(135deg, #f59e0b, #d97706);
            color: #0f172a;
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-md);
            border: none;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
            cursor: pointer;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #fbbf24, #f59e0b);
            box-shadow: 0 6px 28px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-md);
            border: 2px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

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

        /* Section Common */
        .section-padding {
            padding: 80px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.825rem;
            font-weight: 600;
            color: #f59e0b;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            max-width: 640px;
            margin: 0 auto 48px;
        }

        .text-center {
            text-align: center;
        }

        /* Feature Cards Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #f59e0b, #fbbf24, transparent);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

        .feature-card:hover {
            border-color: rgba(245, 158, 11, 0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            background: var(--color-bg-card-hover);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 18px;
            background: rgba(245, 158, 11, 0.12);
            color: #f59e0b;
            transition: all var(--transition-smooth);
        }

        .feature-card:hover .feature-icon {
            background: rgba(245, 158, 11, 0.2);
            box-shadow: 0 0 24px rgba(245, 158, 11, 0.2);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
        }

        .feature-card p {
            font-size: 0.925rem;
            color: var(--color-text-muted);
            line-height: 1.65;
            margin: 0;
        }

        /* Highlight Showcase */
        .showcase-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            padding: 60px 0;
        }

        .showcase-block.reverse {
            direction: rtl;
        }

        .showcase-block.reverse .showcase-text {
            direction: ltr;
        }

        .showcase-block.reverse .showcase-image-wrap {
            direction: ltr;
        }

        .showcase-image-wrap {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .showcase-image-wrap img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 16/10;
            border-radius: var(--radius-xl);
            transition: transform var(--transition-smooth);
        }

        .showcase-image-wrap:hover img {
            transform: scale(1.03);
        }

        .showcase-image-wrap .glow-ring {
            position: absolute;
            inset: -3px;
            border-radius: var(--radius-xl);
            border: 2px solid rgba(245, 158, 11, 0.25);
            pointer-events: none;
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

        .showcase-image-wrap:hover .glow-ring {
            opacity: 1;
        }

        .showcase-text h3 {
            font-size: 1.75rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: -0.02em;
        }

        .showcase-text p {
            font-size: 1rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin: 0 0 20px;
        }

        .showcase-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .showcase-tag {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(56, 189, 248, 0.1);
            border: 1px solid rgba(56, 189, 248, 0.25);
            border-radius: 50px;
            font-size: 0.8rem;
            color: #38bdf8;
            font-weight: 500;
        }

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

        .stat-card {
            background: var(--color-bg-elevated);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-smooth);
        }

        .stat-card:hover {
            border-color: rgba(245, 158, 11, 0.3);
            box-shadow: var(--shadow-glow);
        }

        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: #f59e0b;
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 8px;
        }

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

        /* Scenario Cards */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            display: flex;
            gap: 18px;
            align-items: flex-start;
            transition: all var(--transition-smooth);
        }

        .scenario-card:hover {
            border-color: rgba(245, 158, 11, 0.35);
            background: var(--color-bg-card-hover);
            box-shadow: var(--shadow-card);
        }

        .scenario-card .sc-icon {
            width: 46px;
            height: 46px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
            background: rgba(56, 189, 248, 0.12);
            color: #38bdf8;
        }

        .scenario-card h4 {
            font-size: 1.08rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }

        .scenario-card p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* FAQ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

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

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            background: none;
            border: none;
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            text-align: left;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.02);
        }

        .faq-question i {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-fast);
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: #f59e0b;
        }

        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.925rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-item.open {
            border-color: rgba(245, 158, 11, 0.35);
            box-shadow: var(--shadow-glow);
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-bg-elevated);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h3 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 14px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            margin: 0 0 28px;
            position: relative;
            z-index: 1;
        }

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

        /* Footer */
        .site-footer {
            background: var(--color-bg-elevated);
            border-top: 1px solid var(--color-border);
            padding: 40px 0;
            margin-top: 60px;
        }

        .footer-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 28px;
        }

        .footer-brand {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .footer-copy {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            max-width: 360px;
        }

        .footer-links {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }

        .footer-links a {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .showcase-block {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .showcase-block.reverse {
                direction: ltr;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-title {
                font-size: 2.4rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .search-trigger {
                display: none;
            }
            .nav-cta.desktop-only {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .section-padding {
                padding: 50px 0;
            }
            .cta-section {
                padding: 36px 20px;
            }
            .cta-section h3 {
                font-size: 1.5rem;
            }
            .footer-inner {
                flex-direction: column;
                gap: 20px;
            }
            .header-inner {
                height: 56px;
            }
            .hero-section {
                padding: 50px 0 60px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.55rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
                padding: 13px 24px;
                font-size: 0.95rem;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .feature-card {
                padding: 24px 18px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .showcase-text h3 {
                font-size: 1.35rem;
            }
            .container-custom {
                padding: 0 16px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
        }

/* roulang page: article */
:root {
            --color-primary: #2563eb;
            --color-primary-hover: #1d4ed8;
            --color-primary-light: #dbeafe;
            --color-accent: #ec4899;
            --color-bg: #f8fafc;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-weak: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0,0,0,.04);
            --shadow-sm: 0 2px 8px rgba(0,0,0,.06);
            --shadow-md: 0 6px 20px rgba(0,0,0,.08);
            --shadow-lg: 0 12px 36px rgba(0,0,0,.10);
            --shadow-xl: 0 20px 50px rgba(0,0,0,.12);
            --transition-fast: 160ms ease;
            --transition-base: 240ms ease;
            --transition-slow: 360ms cubic-bezier(.4,0,.2,1);
        }
        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
        body{font-family:'Inter','PingFang SC','Microsoft YaHei',system-ui,sans-serif;line-height:1.7;color:var(--color-text);background:var(--color-bg);overflow-x:hidden}
        img{max-width:100%;height:auto;display:block}
        a{text-decoration:none;color:inherit;transition:color var(--transition-fast)}
        button{cursor:pointer;border:none;font-family:inherit;transition:all var(--transition-fast)}
        .container-custom{max-width:1240px;margin:0 auto;padding:0 24px}
        @media(max-width:768px){.container-custom{padding:0 16px}}

        /* Header & Nav - SaaS命令栏风格 */
        .site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.88);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-xs)}
        .header-inner{display:flex;align-items:center;justify-content:space-between;height:62px;gap:28px}
        .logo-link{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.22rem;color:var(--color-text);letter-spacing:-.02em;white-space:nowrap;flex-shrink:0}
        .logo-link i{color:var(--color-primary);font-size:1.35rem}
        .logo-link:hover{color:var(--color-primary)}
        .nav-links{display:flex;align-items:center;list-style:none;gap:6px;margin:0;padding:0}
        .nav-links a{display:inline-flex;align-items:center;padding:8px 18px;border-radius:var(--radius-md);font-size:.94rem;font-weight:500;color:var(--color-text-secondary);transition:all var(--transition-fast);white-space:nowrap}
        .nav-links a:hover{color:var(--color-primary);background:var(--color-primary-light)}
        .nav-links a.active-nav{color:var(--color-primary);background:var(--color-primary-light);font-weight:600}
        .nav-cta-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;background:var(--color-primary);color:#fff;border-radius:var(--radius-md);font-size:.9rem;font-weight:600;white-space:nowrap;transition:all var(--transition-base);box-shadow:0 2px 8px rgba(37,99,235,.25)}
        .nav-cta-btn:hover{background:var(--color-primary-hover);box-shadow:0 4px 16px rgba(37,99,235,.35);transform:translateY(-1px)}
        .mobile-menu-btn{display:none;background:none;border:none;color:var(--color-text);font-size:1.5rem;padding:6px;border-radius:var(--radius-sm)}
        @media(max-width:768px){
            .nav-links{display:none;position:absolute;top:62px;left:0;right:0;flex-direction:column;background:#fff;border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-lg);padding:12px 16px;gap:2px;z-index:99}
            .nav-links.open{display:flex}
            .nav-links a{width:100%;padding:12px 16px;border-radius:var(--radius-sm);justify-content:center}
            .mobile-menu-btn{display:flex;align-items:center;justify-content:center}
            .nav-cta-btn{font-size:.85rem;padding:8px 16px}
        }

        /* Breadcrumb */
        .breadcrumb-wrap{padding:18px 0;font-size:.88rem;color:var(--color-text-weak)}
        .breadcrumb-wrap a{color:var(--color-text-secondary);transition:color var(--transition-fast)}
        .breadcrumb-wrap a:hover{color:var(--color-primary)}
        .breadcrumb-wrap .separator{margin:0 8px;color:var(--color-text-weak)}
        .breadcrumb-wrap .current{color:var(--color-text);font-weight:500}

        /* Article Banner */
        .article-banner{position:relative;height:220px;background:linear-gradient(135deg,#1e3a8a 0%,#2563eb 50%,#3b82f6 100%);background-size:cover;background-position:center;border-radius:var(--radius-lg);overflow:hidden;margin-bottom:32px;display:flex;align-items:flex-end;padding:28px 36px}
        .article-banner::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.18;mix-blend-mode:overlay}
        .article-banner .banner-content{position:relative;z-index:1;color:#fff}
        .article-banner .banner-badge{display:inline-block;padding:5px 14px;background:rgba(255,255,255,.2);backdrop-filter:blur(8px);border-radius:20px;font-size:.82rem;font-weight:500;margin-bottom:8px}
        .article-banner .banner-title{font-size:1.5rem;font-weight:700;letter-spacing:-.01em;line-height:1.3}
        @media(max-width:768px){
            .article-banner{height:160px;padding:20px;border-radius:var(--radius-md)}
            .article-banner .banner-title{font-size:1.2rem}
        }

        /* Main layout */
        .article-layout{display:grid;grid-template-columns:1fr 320px;gap:36px;align-items:start;padding-bottom:48px}
        @media(max-width:1024px){.article-layout{grid-template-columns:1fr 260px;gap:24px}}
        @media(max-width:768px){.article-layout{grid-template-columns:1fr;gap:28px}}

        /* Article main */
        .article-main{background:var(--color-surface);border-radius:var(--radius-lg);padding:36px 40px;box-shadow:var(--shadow-sm);border:1px solid var(--color-border-light)}
        .article-main .article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px 24px;padding-bottom:20px;margin-bottom:24px;border-bottom:1px solid var(--color-border-light);font-size:.88rem;color:var(--color-text-secondary)}
        .article-main .article-meta .meta-item{display:flex;align-items:center;gap:6px}
        .article-main .article-meta i{color:var(--color-primary);font-size:.85rem}
        .article-main .article-featured-img{margin-bottom:28px;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm)}
        .article-main .article-featured-img img{width:100%;object-fit:cover;max-height:420px}
        .article-main .article-body{font-size:1.03rem;line-height:1.85;color:var(--color-text)}
        .article-body h2{font-size:1.35rem;font-weight:700;margin:32px 0 14px;color:var(--color-text);letter-spacing:-.01em}
        .article-body h3{font-size:1.15rem;font-weight:600;margin:24px 0 10px;color:var(--color-text)}
        .article-body p{margin-bottom:16px}
        .article-body ul,.article-body ol{padding-left:24px;margin-bottom:16px}
        .article-body li{margin-bottom:6px}
        .article-body blockquote{border-left:4px solid var(--color-primary);padding:14px 20px;margin:20px 0;background:var(--color-primary-light);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--color-text-secondary);font-style:italic}
        .article-body img{border-radius:var(--radius-md);margin:20px 0;box-shadow:var(--shadow-sm)}
        .article-body a{color:var(--color-primary);font-weight:500;text-decoration:underline;text-underline-offset:3px}
        .article-body a:hover{color:var(--color-primary-hover)}
        .article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.92rem}
        .article-body th,.article-body td{padding:10px 14px;border:1px solid var(--color-border);text-align:left}
        .article-body th{background:var(--color-bg);font-weight:600}
        @media(max-width:768px){
            .article-main{padding:20px 18px;border-radius:var(--radius-md)}
            .article-body{font-size:.98rem}
            .article-body h2{font-size:1.2rem}
            .article-body h3{font-size:1.05rem}
        }

        /* Not found */
        .not-found-block{text-align:center;padding:60px 24px}
        .not-found-block .nf-icon{font-size:4rem;color:var(--color-text-weak);margin-bottom:20px}
        .not-found-block h2{font-size:1.6rem;font-weight:700;margin-bottom:10px;color:var(--color-text)}
        .not-found-block p{color:var(--color-text-secondary);margin-bottom:24px;font-size:1.02rem}
        .not-found-block .btn-back{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;background:var(--color-primary);color:#fff;border-radius:var(--radius-md);font-weight:600;font-size:.95rem;transition:all var(--transition-base);box-shadow:0 4px 14px rgba(37,99,235,.28)}
        .not-found-block .btn-back:hover{background:var(--color-primary-hover);box-shadow:0 6px 22px rgba(37,99,235,.38);transform:translateY(-2px)}

        /* Sidebar */
        .article-sidebar{display:flex;flex-direction:column;gap:24px}
        .sidebar-card{background:var(--color-surface);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm);border:1px solid var(--color-border-light)}
        .sidebar-card h4{font-size:1.02rem;font-weight:700;margin-bottom:16px;color:var(--color-text);letter-spacing:-.01em}
        .sidebar-card .rec-item{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--color-border-light);transition:all var(--transition-fast)}
        .sidebar-card .rec-item:last-child{border-bottom:none;padding-bottom:0}
        .sidebar-card .rec-item:hover{opacity:.8}
        .sidebar-card .rec-thumb{width:72px;height:54px;border-radius:var(--radius-sm);object-fit:cover;flex-shrink:0}
        .sidebar-card .rec-info{display:flex;flex-direction:column;justify-content:center}
        .sidebar-card .rec-info .rec-title{font-size:.88rem;font-weight:600;color:var(--color-text);line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .sidebar-card .rec-info .rec-date{font-size:.78rem;color:var(--color-text-weak);margin-top:3px}
        .sidebar-tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
        .sidebar-tag-cloud .tag{display:inline-block;padding:6px 14px;background:var(--color-bg);border-radius:20px;font-size:.82rem;color:var(--color-text-secondary);transition:all var(--transition-fast);border:1px solid transparent}
        .sidebar-tag-cloud .tag:hover{background:var(--color-primary-light);color:var(--color-primary);border-color:var(--color-primary)}
        @media(max-width:768px){.article-sidebar{gap:18px}.sidebar-card{padding:18px;border-radius:var(--radius-md)}}

        /* Related section */
        .related-section{padding:40px 0 56px}
        .related-section .section-label{font-size:.82rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--color-primary);margin-bottom:8px}
        .related-section .section-heading{font-size:1.55rem;font-weight:800;letter-spacing:-.02em;margin-bottom:28px;color:var(--color-text)}
        .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
        .related-card{border-radius:var(--radius-lg);overflow:hidden;background:var(--color-surface);box-shadow:var(--shadow-sm);border:1px solid var(--color-border-light);transition:all var(--transition-base);cursor:pointer}
        .related-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-5px);border-color:var(--color-primary-light)}
        .related-card .card-img-wrap{height:180px;overflow:hidden;position:relative}
        .related-card .card-img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-slow)}
        .related-card:hover .card-img-wrap img{transform:scale(1.06)}
        .related-card .card-body{padding:20px}
        .related-card .card-body h5{font-size:1.02rem;font-weight:700;margin-bottom:8px;color:var(--color-text);line-height:1.4}
        .related-card .card-body p{font-size:.88rem;color:var(--color-text-secondary);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .related-card .card-body .card-link{display:inline-flex;align-items:center;gap:5px;margin-top:10px;font-size:.88rem;font-weight:600;color:var(--color-primary)}
        .related-card .card-body .card-link i{transition:transform var(--transition-fast)}
        .related-card:hover .card-body .card-link i{transform:translateX(3px)}
        @media(max-width:1024px){.related-grid{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:520px){.related-grid{grid-template-columns:1fr}.related-card .card-img-wrap{height:200px}}

        /* CTA section */
        .cta-section{margin:20px 0 48px;background:linear-gradient(135deg,#1e40af 0%,#2563eb 60%,#3b82f6 100%);border-radius:var(--radius-xl);padding:48px 40px;text-align:center;color:#fff;position:relative;overflow:hidden}
        .cta-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;opacity:.1;mix-blend-mode:soft-light}
        .cta-section>*{position:relative;z-index:1}
        .cta-section h3{font-size:1.6rem;font-weight:800;letter-spacing:-.02em;margin-bottom:10px}
        .cta-section p{font-size:1.04rem;opacity:.9;margin-bottom:24px;max-width:520px;margin-left:auto;margin-right:auto}
        .cta-section .cta-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 34px;background:#fff;color:var(--color-primary);border-radius:var(--radius-md);font-weight:700;font-size:1rem;transition:all var(--transition-base);box-shadow:0 6px 20px rgba(0,0,0,.2)}
        .cta-section .cta-btn:hover{background:#f0f4ff;box-shadow:0 10px 30px rgba(0,0,0,.28);transform:translateY(-2px)}
        @media(max-width:768px){.cta-section{padding:32px 20px;border-radius:var(--radius-lg)}.cta-section h3{font-size:1.3rem}}

        /* FAQ mini */
        .faq-mini-section{padding:20px 0 36px}
        .faq-mini-section .section-label{font-size:.82rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--color-primary);margin-bottom:8px}
        .faq-mini-section .section-heading{font-size:1.55rem;font-weight:800;letter-spacing:-.02em;margin-bottom:24px;color:var(--color-text)}
        .faq-item{border:1px solid var(--color-border);border-radius:var(--radius-md);margin-bottom:10px;overflow:hidden;transition:all var(--transition-fast);background:var(--color-surface)}
        .faq-item:hover{border-color:var(--color-primary-light);box-shadow:var(--shadow-sm)}
        .faq-item .faq-q{font-weight:600;font-size:.98rem;color:var(--color-text);padding:16px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px}
        .faq-item .faq-q i{color:var(--color-primary);transition:transform var(--transition-fast);font-size:.85rem}
        .faq-item .faq-a{padding:0 20px 16px;font-size:.92rem;color:var(--color-text-secondary);line-height:1.7;display:none}
        .faq-item.open .faq-a{display:block}
        .faq-item.open .faq-q i{transform:rotate(180deg)}

        /* Footer */
        .site-footer{background:var(--color-surface-900,#0f172a);color:#e2e8f0;padding:44px 0;margin-top:20px;border-top:1px solid rgba(255,255,255,.08)}
        .site-footer .footer-inner{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:28px}
        .site-footer .footer-brand{font-size:1.2rem;font-weight:800;color:#fff;letter-spacing:-.01em;margin-bottom:6px}
        .site-footer .footer-copy{font-size:.88rem;color:#94a3b8;max-width:320px;line-height:1.6}
        .site-footer .footer-links{display:flex;gap:24px;flex-wrap:wrap}
        .site-footer .footer-links a{font-size:.9rem;color:#cbd5e1;transition:color var(--transition-fast)}
        .site-footer .footer-links a:hover{color:#fff}
        @media(max-width:768px){.site-footer{padding:28px 0}.site-footer .footer-inner{flex-direction:column;gap:18px;text-align:center}.site-footer .footer-copy{max-width:100%}.site-footer .footer-links{justify-content:center;gap:16px}}

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

/* roulang page: category2 */
:root {
            --color-brand-600: #4c6ef5;
            --color-brand-700: #3b5de7;
            --color-brand-800: #2f4ad0;
            --color-accent-500: #f57c00;
            --color-accent-600: #e06900;
            --color-surface-dark: #1a1d28;
            --color-surface-darker: #111318;
            --color-text-primary: #1a1d28;
            --color-text-secondary: #5a5f6e;
            --color-text-muted: #8b8f9a;
            --color-border: #e2e6ee;
            --color-bg-page: #f8f9fb;
            --radius-xl: 0.875rem;
            --radius-2xl: 1.125rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04);
            --shadow-card-hover: 0 2px 8px rgba(0,0,0,0.08), 0 8px 32px rgba(0,0,0,0.06);
            --shadow-nav: 0 1px 0 rgba(0,0,0,0.06), 0 2px 12px rgba(0,0,0,0.03);
            --transition-base: 180ms 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", "PingFang SC", "Microsoft YaHei", sans-serif;
            font-size: 16px;
            line-height: 1.65;
            color: var(--color-text-primary);
            background-color: var(--color-bg-page);
            min-height: 100vh;
        }

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

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

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

        /* 导航样式 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-nav);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            height: 64px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--color-brand-700);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: opacity var(--transition-base);
        }
        .logo-link:hover {
            opacity: 0.82;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-brand-600), var(--color-brand-800));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .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 18px;
            border-radius: 8px;
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--color-brand-600);
            background: rgba(76,110,245,0.06);
        }
        .nav-links a.active-nav {
            color: var(--color-brand-700);
            background: rgba(76,110,245,0.1);
            font-weight: 600;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search-trigger {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 999px;
            border: 1px solid var(--color-border);
            background: #fff;
            color: var(--color-text-muted);
            font-size: 0.875rem;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .nav-search-trigger:hover {
            border-color: var(--color-brand-300);
            color: var(--color-brand-600);
            box-shadow: 0 0 0 3px rgba(76,110,245,0.06);
        }
        .nav-search-trigger svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            padding: 10px 22px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--color-brand-600), var(--color-brand-700));
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            box-shadow: var(--shadow-button);
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: -0.005em;
        }
        .nav-cta-btn:hover {
            box-shadow: var(--shadow-button-hover);
            transform: translateY(-1px);
            background: linear-gradient(135deg, var(--color-brand-700), var(--color-brand-800));
        }

        /* 移动端菜单按钮 */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            color: var(--color-text-primary);
            border-radius: 8px;
            transition: background var(--transition-base);
        }
        .mobile-menu-btn:hover {
            background: rgba(0,0,0,0.04);
        }
        .mobile-menu-btn svg {
            width: 24px;
            height: 24px;
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255,255,255,0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: 49;
            flex-direction: column;
            padding: 20px 24px;
            gap: 4px;
        }
        .mobile-nav-overlay.active {
            display: flex;
        }
        .mobile-nav-overlay a {
            display: block;
            padding: 14px 18px;
            border-radius: 10px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--color-text-primary);
            transition: all var(--transition-base);
        }
        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active-nav {
            background: rgba(76,110,245,0.08);
            color: var(--color-brand-700);
        }

        /* 页脚 */
        .site-footer {
            background: var(--color-surface-darker);
            color: #b0b5c2;
            padding: 48px 24px 32px;
            margin-top: 80px;
        }
        .footer-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            flex-wrap: wrap;
            gap: 32px;
        }
        .footer-brand {
            font-weight: 700;
            font-size: 1.15rem;
            color: #e8eaef;
            margin-bottom: 6px;
        }
        .footer-copy {
            font-size: 0.85rem;
            color: #7a7f8c;
            max-width: 320px;
            line-height: 1.6;
        }
        .footer-links {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: #b0b5c2;
            font-size: 0.9rem;
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: #e8eaef;
        }

        /* Hero背景覆盖层 */
        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15,20,40,0.72) 0%, rgba(15,20,40,0.55) 60%, rgba(15,20,40,0.78) 100%);
            z-index: 1;
        }

        /* 自定义卡片 */
        .guide-card {
            background: #fff;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border: 1px solid var(--color-border);
        }
        .guide-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: #d0d5e2;
        }
        .guide-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .guide-card-body {
            padding: 20px 22px 24px;
        }

        /* 步骤编号 */
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--color-brand-600), var(--color-brand-700));
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            background: #fff;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: #ccd2df;
        }
        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
            color: var(--color-text-primary);
            transition: color var(--transition-base);
        }
        .faq-question:hover {
            color: var(--color-brand-600);
        }
        .faq-answer {
            padding: 0 22px 18px;
            color: var(--color-text-secondary);
            font-size: 0.925rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question {
            color: var(--color-brand-700);
        }
        .faq-toggle-icon {
            width: 20px;
            height: 20px;
            transition: transform 220ms ease;
            flex-shrink: 0;
            color: var(--color-text-muted);
        }
        .faq-item.open .faq-toggle-icon {
            transform: rotate(45deg);
            color: var(--color-brand-600);
        }

        /* 标签 */
        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.01em;
        }

        /* CTA区块 */
        .cta-section {
            background: linear-gradient(150deg, var(--color-brand-700) 0%, var(--color-brand-900) 100%);
            border-radius: var(--radius-3xl);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255,255,255,0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 2px;
            }
            .nav-links a {
                padding: 8px 14px;
                font-size: 0.875rem;
            }
            .nav-search-trigger span {
                display: none;
            }
            .nav-search-trigger {
                padding: 8px 12px;
                border-radius: 50%;
                aspect-ratio: 1;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-right .nav-cta-btn {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .header-inner {
                padding: 0 16px;
                height: 58px;
            }
            .site-header {
                position: sticky;
            }
            .footer-inner {
                flex-direction: column;
                gap: 20px;
            }
            .footer-links {
                gap: 16px;
            }
            .guide-card-img {
                height: 160px;
            }
            .step-number {
                width: 36px;
                height: 36px;
                font-size: 1rem;
                border-radius: 10px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 12px;
                height: 54px;
            }
            .logo-link {
                font-size: 1.05rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
                border-radius: 8px;
            }
            .nav-search-trigger {
                padding: 6px 10px;
            }
            .guide-card-img {
                height: 140px;
            }
            .guide-card-body {
                padding: 14px 16px 18px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.925rem;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
            .cta-section {
                border-radius: var(--radius-2xl);
            }
        }