/* roulang page: index */
:root {
            --color-brand: #ec7a14;
            --color-brand-hover: #dd5f0a;
            --color-brand-light: #fef7ee;
            --color-navy: #141956;
            --color-navy-light: #1a228d;
            --color-slate-850: #1a1f36;
            --color-slate-950: #0d1117;
            --color-text: #1a1f36;
            --color-text-muted: #64748b;
            --color-text-light: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-bg: #f8fafc;
            --color-white: #ffffff;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --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(0,0,0,0.12);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.16);
            --shadow-brand: 0 4px 20px rgba(236,122,20,0.3);
            --transition-fast: 150ms ease;
            --transition-base: 250ms ease;
            --transition-slow: 400ms ease;
        }

        *, *::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;
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-white);
            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;
        }

        /* 容器 */
        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 1280px) {
            .container-custom {
                padding-left: 0;
                padding-right: 0;
            }
        }

        /* 导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid transparent;
            transition: all var(--transition-base);
        }

        .site-header.scrolled {
            border-bottom-color: var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .nav-logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-navy);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }

        .nav-logo:hover {
            color: var(--color-brand);
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-brand) 0%, var(--color-brand-hover) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
        }

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

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--color-navy);
            background: var(--color-border-light);
        }

        .nav-links a.nav-active {
            color: var(--color-brand);
            background: var(--color-brand-light);
            font-weight: 600;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            padding: 10px 22px;
            background: linear-gradient(135deg, var(--color-brand) 0%, var(--color-brand-hover) 100%);
            color: #fff !important;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            box-shadow: var(--shadow-brand);
            font-size: 0.9rem;
            white-space: nowrap;
        }

        .nav-cta-btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(236,122,20,0.4);
            background: linear-gradient(135deg, var(--color-brand-hover) 0%, #c84d08 100%);
        }

        /* 汉堡菜单 */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            color: var(--color-navy);
            font-size: 1.5rem;
            line-height: 1;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255,255,255,0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            padding: 24px 20px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

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

        .mobile-menu a {
            display: block;
            padding: 14px 18px;
            font-size: 1.1rem;
            font-weight: 500;
            border-radius: var(--radius-md);
            color: var(--color-text);
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover,
        .mobile-menu a.nav-active {
            background: var(--color-brand-light);
            color: var(--color-brand);
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-cta-btn.desktop-only {
                display: none;
            }
            .nav-container {
                height: 60px;
            }
            .nav-logo {
                font-size: 1.15rem;
            }
            .nav-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
        }

        @media (min-width: 769px) {
            .mobile-menu-toggle {
                display: none;
            }
            .mobile-menu {
                display: none !important;
            }
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            background: linear-gradient(160deg, var(--color-slate-950) 0%, var(--color-slate-850) 40%, var(--color-navy) 100%);
            overflow: hidden;
            padding-top: 68px;
        }

        .hero-bg-img {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }

        .hero-particles {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(236,122,20,0.12) 0%, transparent 60%),
                        radial-gradient(ellipse at 70% 30%, rgba(51,88,252,0.1) 0%, transparent 50%),
                        radial-gradient(ellipse at 50% 80%, rgba(236,122,20,0.06) 0%, transparent 55%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 0;
            width: 100%;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.15);
            color: #f5b96d;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            margin-bottom: 24px;
        }

        .hero-badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22c55e;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }

        .hero-title {
            font-size: clamp(2rem, 4.5vw, 3.5rem);
            font-weight: 900;
            color: #ffffff;
            line-height: 1.15;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
            max-width: 720px;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, #f5b96d 0%, #ec7a14 50%, #dd5f0a 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: #cbd5e1;
            max-width: 560px;
            line-height: 1.7;
            margin-bottom: 32px;
        }

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

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 30px;
            background: linear-gradient(135deg, #ec7a14 0%, #dd5f0a 100%);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            box-shadow: 0 4px 20px rgba(236,122,20,0.35);
            border: none;
            cursor: pointer;
        }

        .btn-hero-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(236,122,20,0.5);
        }

        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 30px;
            background: rgba(255,255,255,0.06);
            color: #e2e8f0;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255,255,255,0.2);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .btn-hero-secondary:hover {
            background: rgba(255,255,255,0.12);
            border-color: rgba(255,255,255,0.35);
            color: #fff;
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 40px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .hero-stat-number {
            font-size: 1.8rem;
            font-weight: 900;
            color: #f5b96d;
            letter-spacing: -0.02em;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: #94a3b8;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: auto;
                padding-top: 60px;
            }
            .hero-content {
                padding: 50px 0;
            }
            .hero-stats-row {
                gap: 20px;
            }
            .hero-stat-number {
                font-size: 1.4rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                width: 100%;
                justify-content: center;
            }
        }

        /* 板块通用 */
        .section-block {
            padding: 72px 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-brand);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            font-weight: 800;
            color: var(--color-navy);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            line-height: 1.25;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 600px;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 48px 0;
            }
        }

        /* 服务卡片 */
        .service-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

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

        .service-card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        .service-card-icon.orange {
            background: #fef7ee;
            color: #ec7a14;
        }
        .service-card-icon.blue {
            background: #eef3ff;
            color: #3358fc;
        }
        .service-card-icon.green {
            background: #ecfdf5;
            color: #10b981;
        }
        .service-card-icon.purple {
            background: #f5f3ff;
            color: #7c3aed;
        }

        .service-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-navy);
            margin: 0;
            letter-spacing: -0.01em;
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.65;
            flex-grow: 1;
        }

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

        .service-card .card-link:hover {
            gap: 10px;
        }

        /* 带封面的卡片 */
        .cover-card {
            background: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

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

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

        .cover-card-body {
            padding: 22px 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex-grow: 1;
        }

        .cover-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-navy);
            margin: 0;
            letter-spacing: -0.01em;
        }

        .cover-card-body p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.6;
            flex-grow: 1;
        }

        .cover-card-tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--color-brand-light);
            color: var(--color-brand);
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: 50px;
            align-self: flex-start;
        }

        /* 数据指标条 */
        .metrics-strip {
            background: var(--color-navy);
            padding: 40px 0;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .metric-item {
            padding: 12px;
        }

        .metric-value {
            font-size: 2.2rem;
            font-weight: 900;
            color: #f5b96d;
            letter-spacing: -0.02em;
            line-height: 1;
        }

        .metric-label {
            font-size: 0.9rem;
            color: #94a3b8;
            margin-top: 8px;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .metric-value {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 480px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* 信任板块 */
        .trust-section {
            background: var(--color-slate-950);
            color: #fff;
        }

        .trust-section .section-title {
            color: #fff;
        }
        .trust-section .section-desc {
            color: #94a3b8;
        }

        .trust-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition-base);
        }

        .trust-card:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(255,255,255,0.18);
        }

        .trust-card-icon {
            font-size: 2.2rem;
            margin-bottom: 14px;
        }

        .trust-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
        }

        .trust-card p {
            font-size: 0.85rem;
            color: #94a3b8;
            margin: 0;
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: #cbd5e1;
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-navy);
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            line-height: 1.5;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: all var(--transition-base);
            color: var(--color-text-muted);
        }

        .faq-item.open .faq-icon {
            background: var(--color-brand-light);
            color: var(--color-brand);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(160deg, var(--color-navy) 0%, var(--color-slate-850) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 60% 40%, rgba(236,122,20,0.15) 0%, transparent 60%);
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 64px 20px;
        }

        .cta-content h2 {
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 14px;
        }

        .cta-content p {
            color: #cbd5e1;
            font-size: 1.05rem;
            max-width: 500px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            background: linear-gradient(135deg, #ec7a14 0%, #dd5f0a 100%);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: var(--radius-sm);
            box-shadow: 0 6px 28px rgba(236,122,20,0.4);
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .btn-cta-large:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(236,122,20,0.55);
        }

        /* 页脚 */
        .site-footer {
            background: var(--color-slate-950);
            color: #94a3b8;
            padding: 48px 0 28px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }

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

        .footer-brand-name {
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 10px;
        }

        .footer-brand-desc {
            font-size: 0.85rem;
            line-height: 1.7;
            color: #94a3b8;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #e2e8f0;
            margin: 0 0 14px;
            letter-spacing: 0.02em;
        }

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

        .footer-col ul a {
            font-size: 0.85rem;
            color: #94a3b8;
            transition: color var(--transition-fast);
        }

        .footer-col ul a:hover {
            color: #f5b96d;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: #64748b;
        }

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

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 最新信息列表 */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .news-item:hover {
            background: #fafbfc;
            margin: 0 -12px;
            padding-left: 12px;
            padding-right: 12px;
            border-radius: var(--radius-sm);
        }

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

        .news-item-date {
            flex-shrink: 0;
            font-size: 0.78rem;
            color: var(--color-text-light);
            font-weight: 500;
            min-width: 80px;
            padding-top: 3px;
        }

        .news-item-content h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-navy);
            margin: 0 0 4px;
            line-height: 1.4;
        }

        .news-item-content p {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.5;
        }

        .news-item-cat {
            display: inline-block;
            font-size: 0.72rem;
            padding: 2px 10px;
            background: var(--color-brand-light);
            color: var(--color-brand);
            border-radius: 50px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .news-empty {
            text-align: center;
            padding: 40px;
            color: var(--color-text-muted);
            font-size: 0.95rem;
        }

        /* 网格辅助 */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        @media (max-width: 900px) {
            .grid-3, .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .grid-2, .grid-3, .grid-4 {
                grid-template-columns: 1fr;
            }
        }

        /* 标签 */
        .tag {
            display: inline-block;
            padding: 5px 14px;
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 50px;
            transition: all var(--transition-fast);
        }
        .tag-orange {
            background: #fef7ee;
            color: #ec7a14;
        }
        .tag-blue {
            background: #eef3ff;
            color: #3358fc;
        }
        .tag-green {
            background: #ecfdf5;
            color: #10b981;
        }

        /* 深色区块文字适配 */
        .section-dark {
            background: var(--color-slate-950);
            color: #fff;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-desc {
            color: #94a3b8;
        }
        .section-dark .section-label {
            color: #f5b96d;
        }

        /* 分割装饰 */
        .divider-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-brand);
            display: inline-block;
            margin: 0 8px;
            vertical-align: middle;
        }

        /* 图片圆角统一 */
        .img-rounded {
            border-radius: var(--radius-lg);
        }

/* roulang page: article */
:root {
            --brand: #ec7a14;
            --brand-dark: #dd5f0a;
            --brand-light: #fb923c;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-muted: #787890;
            --bg-warm: #fefcf9;
            --bg-card: #ffffff;
            --border-soft: #e8e4de;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-nav: 0 1px 0 rgba(0,0,0,0.04), 0 2px 8px rgba(0,0,0,0.03);
            --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.05);
            --shadow-elevated: 0 2px 8px rgba(0,0,0,0.09), 0 8px 28px rgba(0,0,0,0.07);
            --transition-fast: 180ms ease;
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 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','Noto Sans SC',sans-serif;line-height:1.7;color:#1a1a2e;background:#fefcf9;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;background:none;font-family:inherit}
        ul{list-style:none}
        .container-custom{max-width:1200px;margin:0 auto;padding:0 24px}
        .container-narrow{max-width:820px;margin:0 auto;padding:0 24px}
        .site-header{position:sticky;top:0;z-index:100;background:#ffffff;box-shadow:var(--shadow-nav);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);background:rgba(255,255,255,0.96)}
        .nav-container{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:64px}
        .nav-logo{display:flex;align-items:center;gap:8px;font-size:1.25rem;font-weight:700;color:#1a1a2e;letter-spacing:-0.01em;white-space:nowrap}
        .nav-logo-icon{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:8px;background:linear-gradient(135deg,#ec7a14,#dd5f0a);color:#fff;font-weight:800;font-size:1rem;flex-shrink:0}
        .nav-links{display:flex;align-items:center;gap:4px;list-style:none}
        .nav-links a{display:inline-flex;align-items:center;padding:8px 16px;border-radius:8px;font-size:0.925rem;font-weight:500;color:#4a4a5e;transition:all var(--transition-fast);white-space:nowrap}
        .nav-links a:hover{color:#ec7a14;background:#fff7ed}
        .nav-links a.nav-active{color:#ec7a14;background:#fff7ed;font-weight:600}
        .nav-cta-btn{display:inline-flex;align-items:center;padding:10px 22px;border-radius:8px;font-size:0.9rem;font-weight:600;color:#fff;background:linear-gradient(135deg,#ec7a14,#dd5f0a);transition:all var(--transition-smooth);box-shadow:0 2px 8px rgba(236,122,20,0.3);white-space:nowrap;margin-left:12px}
        .nav-cta-btn:hover{box-shadow:0 4px 16px rgba(236,122,20,0.45);transform:translateY(-1px)}
        .mobile-menu-toggle{display:none;font-size:1.5rem;color:#1a1a2e;padding:6px 8px;border-radius:6px}
        .mobile-menu{display:none;flex-direction:column;gap:4px;padding:12px 24px 20px;background:#fff;border-top:1px solid #e8e4de}
        .mobile-menu a{display:block;padding:12px 16px;border-radius:8px;font-size:0.95rem;font-weight:500;color:#4a4a5e;transition:all var(--transition-fast)}
        .mobile-menu a:hover,.mobile-menu a.nav-active{color:#ec7a14;background:#fff7ed}
        @media(max-width:768px){
            .nav-links{display:none}
            .desktop-only{display:none}
            .mobile-menu-toggle{display:block}
            .mobile-menu.active{display:flex}
        }
        @media(min-width:769px){
            .mobile-menu{display:none!important}
        }
        .breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:6px;padding:16px 0;font-size:0.85rem;color:#787890}
        .breadcrumb a{color:#4a4a5e;transition:color var(--transition-fast)}
        .breadcrumb a:hover{color:#ec7a14}
        .breadcrumb .separator{color:#c8c4bb;user-select:none}
        .breadcrumb .current{color:#1a1a2e;font-weight:500}
        .article-hero{position:relative;padding:48px 0 32px;background:linear-gradient(180deg,#fdf6ee 0%,#fefcf9 100%)}
        .article-hero-inner{max-width:820px;margin:0 auto;padding:0 24px}
        .article-category-tag{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:20px;font-size:0.82rem;font-weight:600;color:#ec7a14;background:#fff7ed;border:1px solid #fed7aa;margin-bottom:16px}
        .article-category-tag::before{content:'';width:6px;height:6px;border-radius:50%;background:#ec7a14}
        .article-title{font-size:2.15rem;font-weight:800;line-height:1.35;color:#1a1a2e;letter-spacing:-0.02em;margin-bottom:16px}
        .article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;font-size:0.875rem;color:#787890;margin-bottom:24px}
        .article-meta-item{display:flex;align-items:center;gap:6px}
        .article-featured-img{border-radius:var(--radius-lg);overflow:hidden;margin-bottom:36px;box-shadow:var(--shadow-elevated)}
        .article-featured-img img{width:100%;height:auto;object-fit:cover;aspect-ratio:16/9}
        .article-body{max-width:820px;margin:0 auto;padding:0 24px 48px}
        .article-content{font-size:1.05rem;line-height:1.85;color:#2a2a3e}
        .article-content h2{font-size:1.55rem;font-weight:700;color:#1a1a2e;margin:36px 0 14px;padding-bottom:8px;border-bottom:2px solid #fae9d5}
        .article-content h3{font-size:1.25rem;font-weight:700;color:#1a1a2e;margin:28px 0 10px}
        .article-content p{margin-bottom:16px;color:#3a3a4e}
        .article-content ul,.article-content ol{margin:12px 0 20px 24px}
        .article-content ul{list-style:disc}
        .article-content ol{list-style:decimal}
        .article-content li{margin-bottom:8px;color:#3a3a4e}
        .article-content img{border-radius:var(--radius-md);margin:20px 0;box-shadow:var(--shadow-card)}
        .article-content blockquote{border-left:3px solid #ec7a14;padding:14px 20px;margin:20px 0;background:#fff7ed;border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#5a4a3a;font-style:italic}
        .article-content a{color:#ec7a14;text-decoration:underline;text-underline-offset:3px}
        .article-content a:hover{color:#dd5f0a}
        .article-content table{width:100%;border-collapse:collapse;margin:20px 0;font-size:0.9rem}
        .article-content th,.article-content td{padding:10px 14px;border:1px solid #e8e4de;text-align:left}
        .article-content th{background:#fdf6ee;font-weight:600;color:#1a1a2e}
        .article-content code{background:#f5f0e8;padding:2px 8px;border-radius:4px;font-size:0.9em;color:#c24f08}
        @media(max-width:768px){
            .article-title{font-size:1.55rem}
            .article-hero{padding:32px 0 20px}
            .article-featured-img{border-radius:var(--radius-md);margin-bottom:24px}
            .article-content{font-size:0.98rem}
            .article-content h2{font-size:1.3rem}
            .article-content h3{font-size:1.1rem}
        }
        .cta-card{max-width:820px;margin:0 auto 56px;padding:0 24px}
        .cta-card-inner{background:linear-gradient(135deg,#1a1a2e,#0f0f1c);border-radius:var(--radius-lg);padding:40px 36px;text-align:center;box-shadow:0 8px 32px rgba(0,0,0,0.18)}
        .cta-card-inner h3{font-size:1.35rem;font-weight:700;color:#fff;margin-bottom:8px}
        .cta-card-inner p{color:#c8c4bb;font-size:0.95rem;margin-bottom:20px;line-height:1.6}
        .cta-btn-brand{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;border-radius:10px;font-size:0.95rem;font-weight:600;color:#fff;background:linear-gradient(135deg,#ec7a14,#dd5f0a);transition:all var(--transition-smooth);box-shadow:0 4px 14px rgba(236,122,20,0.35)}
        .cta-btn-brand:hover{box-shadow:0 6px 22px rgba(236,122,20,0.5);transform:translateY(-2px)}
        .not-found-section{max-width:600px;margin:60px auto 80px;text-align:center;padding:0 24px}
        .not-found-card{background:#fff;border-radius:var(--radius-lg);padding:48px 32px;box-shadow:var(--shadow-card)}
        .not-found-icon{font-size:4rem;margin-bottom:16px;display:block}
        .not-found-card h2{font-size:1.5rem;font-weight:700;color:#1a1a2e;margin-bottom:8px}
        .not-found-card p{color:#787890;margin-bottom:24px;line-height:1.7}
        .back-home-btn{display:inline-flex;align-items:center;gap:6px;padding:12px 26px;border-radius:10px;font-weight:600;color:#fff;background:linear-gradient(135deg,#ec7a14,#dd5f0a);transition:all var(--transition-smooth);box-shadow:0 2px 10px rgba(236,122,20,0.3)}
        .back-home-btn:hover{box-shadow:0 4px 18px rgba(236,122,20,0.45);transform:translateY(-1px)}
        .site-footer{background:#1a1a2e;color:#c8c4bb;padding:52px 0 28px;margin-top:20px}
        .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;margin-bottom:36px}
        .footer-brand-name{font-size:1.2rem;font-weight:700;color:#fff;margin-bottom:8px}
        .footer-brand-desc{font-size:0.875rem;line-height:1.65;color:#a8a4b8;max-width:300px}
        .footer-col h4{font-size:0.95rem;font-weight:600;color:#fff;margin-bottom:12px}
        .footer-col ul{list-style:none;display:flex;flex-direction:column;gap:7px}
        .footer-col ul li{font-size:0.875rem}
        .footer-col ul li a{color:#a8a4b8;transition:color var(--transition-fast)}
        .footer-col ul li a:hover{color:#fb923c}
        .footer-col ul li span{color:#a8a4b8}
        .footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding-top:20px;text-align:center;font-size:0.8rem;color:#787890}
        @media(max-width:768px){
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
            .footer-brand-desc{max-width:100%}
            .cta-card-inner{padding:28px 20px}
        }
        @media(max-width:520px){
            .footer-grid{grid-template-columns:1fr;gap:24px}
            .article-title{font-size:1.35rem}
            .breadcrumb{font-size:0.78rem}
        }
        .skip-link{position:absolute;top:-100px;left:16px;background:#ec7a14;color:#fff;padding:8px 16px;border-radius:6px;z-index:200;transition:top var(--transition-fast)}
        .skip-link:focus{top:10px}
        :focus-visible{outline:2px solid #ec7a14;outline-offset:2px;border-radius:4px}

/* roulang page: category1 */
:root {
            --primary: #ec7a14;
            --primary-dark: #dd5f0a;
            --primary-light: #f59e42;
            --secondary: #1a1a2e;
            --accent: #16213e;
            --surface: #ffffff;
            --surface-alt: #f8f9fb;
            --surface-dark: #0f0f1a;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-light: #6b6b80;
            --text-on-dark: #e8e8f0;
            --border: #e2e4ea;
            --border-light: #f0f1f5;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.16);
            --transition-fast: 0.18s ease;
            --transition: 0.28s ease;
        }

        *,
        *::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', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            line-height: 1.65;
            color: var(--text-primary);
            background: var(--surface-alt);
            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;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 64px;
        }
        @media (max-width: 768px) {
            .nav-container {
                padding: 0 16px;
                height: 56px;
            }
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary-dark);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }
        .nav-logo:hover {
            opacity: 0.85;
        }
        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            border-radius: 10px;
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .nav-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
                border-radius: 8px;
            }
            .nav-logo {
                font-size: 1.05rem;
                gap: 8px;
            }
        }
        nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 4px;
            align-items: center;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: rgba(236, 122, 20, 0.06);
        }
        .nav-links a.nav-active {
            color: var(--primary-dark);
            background: rgba(236, 122, 20, 0.1);
            font-weight: 600;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.93rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(236, 122, 20, 0.3);
            margin-left: 8px;
        }
        .nav-cta-btn:hover {
            box-shadow: 0 4px 18px rgba(236, 122, 20, 0.45);
            transform: translateY(-1px);
        }
        .desktop-only {
            display: inline-flex;
        }
        @media (max-width: 768px) {
            .desktop-only {
                display: none !important;
            }
            .nav-links {
                display: none;
            }
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text-primary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: var(--border-light);
        }
        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: block;
            }
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background: #fff;
            border-top: 1px solid var(--border-light);
            padding: 12px 16px 20px;
            gap: 6px;
            box-shadow: var(--shadow-md);
        }
        .mobile-menu.active {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }
        .mobile-menu a:hover {
            background: var(--surface-alt);
            color: var(--primary);
        }
        .mobile-menu a.nav-active {
            color: var(--primary-dark);
            background: rgba(236, 122, 20, 0.1);
            font-weight: 600;
        }
        @media (min-width: 769px) {
            .mobile-menu {
                display: none !important;
            }
        }

        /* Section spacing */
        .section {
            padding: 72px 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
        }
        .section-dark {
            background: var(--surface-dark);
            color: var(--text-on-dark);
        }

        /* Hero */
        .hero-category {
            position: relative;
            padding: 100px 0 90px;
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f0f1a 100%);
            overflow: hidden;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .hero-category::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--surface-alt) 0%, transparent 100%);
            z-index: 1;
        }
        .hero-category .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 18px;
            background: rgba(236, 122, 20, 0.2);
            border: 1px solid rgba(236, 122, 20, 0.4);
            color: var(--primary-light);
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
        }
        .hero-category h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: -0.03em;
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .hero-category h1 span {
            background: linear-gradient(135deg, #f59e42, #ec7a14);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        @media (max-width: 768px) {
            .hero-category h1 {
                font-size: 2rem;
            }
            .hero-category {
                padding: 64px 0 56px;
            }
        }
        @media (max-width: 520px) {
            .hero-category h1 {
                font-size: 1.6rem;
            }
        }
        .hero-category .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .hero-category .hero-subtitle {
                font-size: 1rem;
                padding: 0 8px;
            }
        }
        .btn-primary-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: linear-gradient(135deg, #ec7a14, #dd5f0a);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: 50px;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(236, 122, 20, 0.4);
            border: none;
            letter-spacing: 0.01em;
        }
        .btn-primary-lg:hover {
            box-shadow: 0 10px 36px rgba(236, 122, 20, 0.55);
            transform: translateY(-2px);
        }
        .btn-outline-white {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 13px 32px;
            border: 2px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 50px;
            background: transparent;
            transition: all var(--transition);
        }
        .btn-outline-white:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        /* Service cards */
        .service-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 16px;
            height: 100%;
        }
        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: rgba(236, 122, 20, 0.25);
        }
        .service-card-img {
            width: 100%;
            height: 180px;
            border-radius: var(--radius);
            overflow: hidden;
            flex-shrink: 0;
        }
        .service-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .service-card:hover .service-card-img img {
            transform: scale(1.05);
        }
        .service-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
        }
        .service-card p {
            font-size: 0.93rem;
            color: var(--text-light);
            line-height: 1.6;
            flex-grow: 1;
        }
        .service-tag {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(236, 122, 20, 0.08);
            color: var(--primary-dark);
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 600;
            align-self: flex-start;
        }

        /* Stats block */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
        }
        .stat-card {
            text-align: center;
            padding: 28px 20px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.25);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, #f59e42, #ec7a14);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.02em;
            line-height: 1.1;
        }
        @media (max-width: 768px) {
            .stat-number {
                font-size: 2rem;
            }
        }
        .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 8px;
            font-weight: 500;
        }

        /* Step flow */
        .steps-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        @media (max-width: 768px) {
            .steps-flow {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .steps-flow {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }
        .step-item {
            text-align: center;
            position: relative;
            padding: 24px 16px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            border-radius: 50%;
            margin-bottom: 14px;
            box-shadow: 0 4px 16px rgba(236, 122, 20, 0.35);
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: rgba(236, 122, 20, 0.3);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            background: none;
            border: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: var(--surface-alt);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question {
            color: var(--primary-dark);
            background: rgba(236, 122, 20, 0.03);
        }
        .faq-icon {
            font-size: 1.4rem;
            transition: transform var(--transition-fast);
            flex-shrink: 0;
            color: var(--text-light);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }
        .cta-section>* {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section {
                padding: 40px 20px;
                border-radius: var(--radius-lg);
            }
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            max-width: 500px;
            margin: 0 auto 28px;
        }

        /* Footer */
        .site-footer {
            background: #0f0f1a;
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 24px;
            margin-top: 0;
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 40px 0 20px;
            }
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        .footer-brand-name {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-brand-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col li {
            margin-bottom: 8px;
        }
        .footer-col a,
        .footer-col span {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--primary-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.84rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* Section title */
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }
        @media (max-width: 768px) {
            .section-title h2 {
                font-size: 1.5rem;
            }
            .section-title {
                margin-bottom: 32px;
            }
        }
        .section-title p {
            font-size: 1rem;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto;
        }
        .divider-accent {
            width: 50px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            border-radius: 2px;
            margin: 0 auto 16px;
        }

        /* Scenario alternating */
        .scenario-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 48px;
        }
        .scenario-row.reverse {
            direction: rtl;
        }
        .scenario-row.reverse>* {
            direction: ltr;
        }
        @media (max-width: 768px) {
            .scenario-row {
                grid-template-columns: 1fr;
                gap: 20px;
                margin-bottom: 36px;
            }
            .scenario-row.reverse {
                direction: ltr;
            }
        }
        .scenario-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .scenario-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .scenario-img:hover img {
            transform: scale(1.03);
        }
        .scenario-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .scenario-text p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .scenario-text h3 {
                font-size: 1.25rem;
            }
        }
        .scenario-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 14px;
        }
        .tag-pill {
            padding: 6px 14px;
            background: rgba(236, 122, 20, 0.07);
            color: var(--primary-dark);
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 500;
        }

        /* Focus / accessibility */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }