/* roulang page: index */
:root {
            --color-brand-green: #059669;
            --color-brand-green-dark: #047857;
            --color-brand-green-light: #10B981;
            --color-brand-navy: #1E3A5F;
            --color-brand-gold: #F59E0B;
            --color-brand-dark: #0F172A;
            --color-surface: #F8FAFC;
            --color-card: #FFFFFF;
            --color-text: #1E293B;
            --color-text-muted: #64748B;
            --color-text-light: #94A3B8;
            --color-border: #E2E8F0;
            --color-border-light: #F1F5F9;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --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);
            --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: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            line-height: 1.7;
            color: #1E293B;
            background-color: #F8FAFC;
            min-height: 100vh;
        }

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

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

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

        input {
            font-family: inherit;
        }

        .container-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;
            }
        }

        /* Header / Navigation */
        .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-light);
            box-shadow: var(--shadow-nav);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        @media (min-width: 640px) {
            .nav-container {
                padding: 0 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .nav-container {
                padding: 0 2rem;
                height: 68px;
            }
        }

        .nav-left,
        .nav-right {
            display: none;
            flex: 1;
            min-width: 0;
        }

        @media (min-width: 768px) {
            .nav-left,
            .nav-right {
                display: flex;
                align-items: center;
            }
            .nav-left {
                justify-content: flex-start;
            }
            .nav-right {
                justify-content: flex-end;
            }
        }

        .nav-logo {
            font-size: 1.15rem;
            font-weight: 700;
            color: #1E293B;
            white-space: nowrap;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #059669, #10B981);
            border-radius: 10px;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        @media (min-width: 768px) {
            .nav-logo {
                font-size: 1.25rem;
                margin: 0 1.5rem;
            }
            .nav-logo .logo-icon {
                width: 40px;
                height: 40px;
                font-size: 1.2rem;
                border-radius: 11px;
            }
        }

        .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: #475569;
            padding: 0.4rem 0.85rem;
            border-radius: 8px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .nav-link:hover {
            color: #059669;
            background: #ECFDF5;
        }

        .nav-link.active {
            color: #059669;
            font-weight: 600;
            background: #ECFDF5;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.875rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, #059669, #047857);
            padding: 0.5rem 1.1rem;
            border-radius: 9999px;
            white-space: nowrap;
            transition: all var(--transition-smooth);
            box-shadow: 0 2px 8px rgba(5, 150, 105, 0.25);
            letter-spacing: 0.01em;
        }

        .nav-cta-btn:hover {
            background: linear-gradient(135deg, #047857, #065f46);
            box-shadow: 0 4px 16px rgba(5, 150, 105, 0.35);
            transform: translateY(-1px);
        }

        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(5, 150, 105, 0.3);
        }

        /* Mobile menu toggle */
        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: none;
            border: none;
            color: #475569;
            font-size: 1.35rem;
            border-radius: 10px;
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }

        .mobile-menu-toggle:hover {
            background: #F1F5F9;
        }

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

        /* Mobile menu panel */
        .mobile-menu-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
            padding: 0.75rem 1.25rem 1rem;
            flex-direction: column;
            gap: 0.5rem;
            z-index: 49;
        }

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

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

        .mobile-nav-link {
            display: block;
            font-size: 0.95rem;
            font-weight: 500;
            color: #475569;
            padding: 0.65rem 0.85rem;
            border-radius: 10px;
            transition: all var(--transition-fast);
        }

        .mobile-nav-link:hover,
        .mobile-nav-link.active {
            color: #059669;
            background: #ECFDF5;
        }

        .mobile-nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, #059669, #047857);
            padding: 0.65rem 1.2rem;
            border-radius: 9999px;
            text-align: center;
            margin-top: 0.25rem;
            transition: all var(--transition-smooth);
        }

        .mobile-nav-cta:hover {
            background: linear-gradient(135deg, #047857, #065f46);
        }

        /* Hero */
        .hero-section {
            position: relative;
            background: linear-gradient(160deg, #ECFDF5 0%, #F0FDF4 30%, #F8FAFC 60%, #EFF6FF 100%);
            overflow: hidden;
            padding: 3rem 0 3.5rem;
        }

        @media (min-width: 768px) {
            .hero-section {
                padding: 5rem 0 6rem;
            }
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(5, 150, 105, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(30, 58, 95, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.8rem;
            font-weight: 600;
            color: #059669;
            background: #D1FAE5;
            padding: 0.35rem 0.9rem;
            border-radius: 9999px;
            margin-bottom: 1.25rem;
            letter-spacing: 0.02em;
        }

        @media (min-width: 768px) {
            .hero-badge {
                font-size: 0.85rem;
                padding: 0.4rem 1rem;
                margin-bottom: 1.5rem;
            }
        }

        .hero-title {
            font-size: 1.85rem;
            font-weight: 800;
            color: #0F172A;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }

        .hero-title .highlight {
            color: #059669;
            position: relative;
        }

        @media (min-width: 640px) {
            .hero-title {
                font-size: 2.4rem;
            }
        }

        @media (min-width: 768px) {
            .hero-title {
                font-size: 3rem;
                line-height: 1.2;
                margin-bottom: 1.25rem;
            }
        }

        @media (min-width: 1024px) {
            .hero-title {
                font-size: 3.4rem;
            }
        }

        .hero-subtitle {
            font-size: 1rem;
            color: #64748B;
            line-height: 1.7;
            margin-bottom: 1.75rem;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        @media (min-width: 768px) {
            .hero-subtitle {
                font-size: 1.1rem;
                margin-bottom: 2rem;
                line-height: 1.75;
            }
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            justify-content: center;
        }

        @media (min-width: 640px) {
            .hero-buttons {
                gap: 1rem;
            }
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, #059669, #047857);
            padding: 0.75rem 1.75rem;
            border-radius: 9999px;
            border: none;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(5, 150, 105, 0.3);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #047857, #065f46);
            box-shadow: 0 6px 24px rgba(5, 150, 105, 0.4);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 3px 12px rgba(5, 150, 105, 0.35);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: #1E293B;
            background: #fff;
            padding: 0.75rem 1.75rem;
            border-radius: 9999px;
            border: 1.5px solid #E2E8F0;
            transition: all var(--transition-smooth);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .btn-outline:hover {
            border-color: #059669;
            color: #059669;
            background: #F0FDF4;
            box-shadow: 0 4px 16px rgba(5, 150, 105, 0.08);
            transform: translateY(-1px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        /* Section通用 */
        .section {
            padding: 3rem 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 4.5rem 0;
            }
        }

        @media (min-width: 1024px) {
            .section {
                padding: 5.5rem 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: #059669;
            background: #ECFDF5;
            padding: 0.3rem 0.85rem;
            border-radius: 9999px;
            margin-bottom: 0.75rem;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: #0F172A;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }

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

        .section-desc {
            font-size: 0.95rem;
            color: #64748B;
            margin-top: 0.6rem;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.65;
        }

        /* 卡片网格 */
        .card-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        @media (min-width: 640px) {
            .card-grid.cols-2 {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid.cols-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 768px) {
            .card-grid {
                gap: 1.25rem;
            }
            .card-grid.cols-3 {
                grid-template-columns: repeat(3, 1fr);
            }
            .card-grid.cols-4 {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .card-grid {
                gap: 1.5rem;
            }
        }

        /* 特色卡片 */
        .feature-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            border: 1px solid #F1F5F9;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: #E2E8F0;
        }

        .feature-card .card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            font-size: 1.3rem;
            margin-bottom: 1rem;
            flex-shrink: 0;
        }

        .feature-card .card-icon.green {
            background: #ECFDF5;
            color: #059669;
        }

        .feature-card .card-icon.blue {
            background: #EFF6FF;
            color: #3B82F6;
        }

        .feature-card .card-icon.amber {
            background: #FFFBEB;
            color: #F59E0B;
        }

        .feature-card .card-icon.purple {
            background: #F5F3FF;
            color: #8B5CF6;
        }

        .feature-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #1E293B;
            margin-bottom: 0.4rem;
            letter-spacing: -0.005em;
        }

        .feature-card p {
            font-size: 0.875rem;
            color: #64748B;
            line-height: 1.6;
        }

        /* 赛事卡片 */
        .match-card {
            background: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid #F1F5F9;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
        }

        .match-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .match-card-image {
            height: 140px;
            background: linear-gradient(135deg, #1E3A5F 0%, #0F172A 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .match-card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
        }

        .match-card-image .match-emoji {
            font-size: 3rem;
            position: relative;
            z-index: 1;
        }

        .match-card-body {
            padding: 1rem 1.25rem 1.25rem;
        }

        .match-card-badge {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            margin-bottom: 0.5rem;
            letter-spacing: 0.02em;
        }

        .match-card-badge.live {
            background: #FEE2E2;
            color: #DC2626;
        }

        .match-card-badge.upcoming {
            background: #EFF6FF;
            color: #3B82F6;
        }

        .match-card-badge.hot {
            background: #FFFBEB;
            color: #D97706;
        }

        .match-card h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #1E293B;
            margin-bottom: 0.3rem;
        }

        .match-card .match-info {
            font-size: 0.8rem;
            color: #94A3B8;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }

        /* 数据统计 */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }

        @media (min-width: 640px) {
            .stats-row {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.25rem;
            }
        }

        @media (min-width: 1024px) {
            .stats-row {
                gap: 1.5rem;
            }
        }

        .stat-item {
            text-align: center;
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 1.25rem 0.75rem;
            border: 1px solid #F1F5F9;
            box-shadow: var(--shadow-card);
        }

        .stat-number {
            font-size: 1.75rem;
            font-weight: 800;
            color: #059669;
            letter-spacing: -0.02em;
            line-height: 1.1;
        }

        @media (min-width: 768px) {
            .stat-number {
                font-size: 2.25rem;
            }
        }

        .stat-label {
            font-size: 0.8rem;
            color: #64748B;
            margin-top: 0.3rem;
            font-weight: 500;
        }

        /* 流程步骤 */
        .steps-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        @media (min-width: 640px) {
            .steps-container {
                grid-template-columns: repeat(3, 1fr);
                gap: 1.25rem;
            }
        }

        @media (min-width: 1024px) {
            .steps-container {
                gap: 1.5rem;
            }
        }

        .step-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            text-align: center;
            border: 1px solid #F1F5F9;
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #059669, #10B981);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.85rem;
        }

        .step-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: #1E293B;
            margin-bottom: 0.35rem;
        }

        .step-card p {
            font-size: 0.85rem;
            color: #64748B;
            line-height: 1.55;
        }

        /* FAQ */
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid #F1F5F9;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: #E2E8F0;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.25rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: #1E293B;
            background: none;
            border: none;
            text-align: left;
            cursor: pointer;
            gap: 0.75rem;
            transition: color var(--transition-fast);
            letter-spacing: 0.005em;
        }

        .faq-question:hover {
            color: #059669;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #F1F5F9;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: #64748B;
            transition: all var(--transition-fast);
        }

        .faq-item.open .faq-question .faq-icon {
            background: #ECFDF5;
            color: #059669;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
            font-size: 0.875rem;
            color: #64748B;
            line-height: 1.65;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 1rem;
        }

        /* CTA区块 */
        .cta-section {
            background: linear-gradient(160deg, #064E3B 0%, #047857 40%, #059669 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -30px;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
        }

        .cta-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }

        @media (min-width: 768px) {
            .cta-content h2 {
                font-size: 2rem;
            }
        }

        .cta-content p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 1.5rem;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .btn-cta-white {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: #059669;
            background: #fff;
            padding: 0.75rem 1.75rem;
            border-radius: 9999px;
            border: none;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .btn-cta-white:hover {
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
            transform: translateY(-2px);
        }

        .btn-cta-white:active {
            transform: translateY(0);
        }

        /* Footer */
        .site-footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 2.5rem 0;
        }

        @media (min-width: 768px) {
            .site-footer {
                padding: 3rem 0;
            }
        }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
            text-align: center;
        }

        @media (min-width: 640px) {
            .footer-container {
                padding: 0 1.5rem;
            }
        }

        .footer-brand {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.5rem;
            letter-spacing: -0.005em;
        }

        .footer-desc {
            font-size: 0.825rem;
            color: #94A3B8;
            max-width: 400px;
            margin: 0 auto 1.25rem;
            line-height: 1.6;
        }

        .footer-divider {
            border: none;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin: 0 auto 1.25rem;
            max-width: 600px;
        }

        .footer-copyright {
            font-size: 0.8rem;
            color: #64748B;
        }

        .footer-copyright .domain-info {
            color: #94A3B8;
            font-size: 0.75rem;
            display: block;
            margin-top: 0.3rem;
        }

        /* 深色背景区块 */
        .dark-block {
            background: #0F172A;
            color: #fff;
        }

        .dark-block .section-title {
            color: #fff;
        }

        .dark-block .section-desc {
            color: #94A3B8;
        }

        .dark-block .section-label {
            background: rgba(5, 150, 105, 0.2);
            color: #34D399;
        }

        /* 响应式调整 */
        @media (max-width: 767px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .btn-primary,
            .btn-outline {
                font-size: 0.85rem;
                padding: 0.65rem 1.3rem;
            }
            .feature-card {
                padding: 1.15rem;
            }
            .section {
                padding: 2.25rem 0;
            }
        }

        @media (max-width: 519px) {
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .hero-buttons .btn-primary,
            .hero-buttons .btn-outline {
                width: 100%;
                justify-content: center;
                max-width: 280px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.65rem;
            }
        }

        /* 焦点可见轮廓 */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid #059669;
            outline-offset: 2px;
            border-radius: 4px;
        }

        .btn-primary:focus-visible,
        .btn-cta-white:focus-visible,
        .nav-cta-btn:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 3px;
        }

        /* 平滑滚动偏移 */
        @media (min-width: 768px) {
            html {
                scroll-padding-top: 80px;
            }
        }