* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: linear-gradient(145deg, #f8fafc 0%, #e0f2fe 50%, #f0f9ff 100%);
            color: #1e293b;
            line-height: 1.7;
            min-height: 100vh;
        }
        /* 导航 */
        .nav {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(186, 230, 253, 0.6);
            box-shadow: 0 4px 24px rgba(2, 132, 199, 0.06);
            padding: 0.6rem 2rem;
        }
        .nav-links {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 2.2rem;
            max-width: 1280px;
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .nav-links a {
            text-decoration: none;
            color: #0f172a;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.5rem 0.25rem;
            position: relative;
            transition: color 0.25s, transform 0.25s;
            letter-spacing: 0.01em;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, #38bdf8, #818cf8);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: right;
            transition: transform 0.3s ease;
        }
        .nav-links a:hover {
            color: #0284c7;
        }
        .nav-links a:hover::after {
            transform: scaleX(1);
            transform-origin: left;
        }

        /* 区块通用 */
        .section {
            max-width: 1280px;
            margin: 0 auto;
            padding: 3.5rem 2rem;
        }
        .section-title {
            text-align: center;
            font-size: 2rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 0.5rem;
            letter-spacing: 0.02em;
        }
        .section-subtitle {
            text-align: center;
            color: #64748b;
            font-size: 1rem;
            max-width: 720px;
            margin: 0 auto 2.5rem;
        }

        /* Hero */
        .hero {
            position: relative;
            text-align: center;
            padding: 6.5rem 2rem 7rem;
            overflow: hidden;
            background: linear-gradient(135deg, rgba(224, 242, 254, 0.4), rgba(255, 255, 255, 0.7)), url('/img/ball.webp') center/cover no-repeat;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(248, 250, 252, 0.55), rgba(224, 242, 254, 0.22));
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #0f172a;
            margin-bottom: 1rem;
            line-height: 1.2;
            text-shadow: 0 2px 20px rgba(255, 255, 255, 0.8);
        }
        .hero-desc {
            font-size: 1.15rem;
            color: #1e293b;
            max-width: 780px;
            margin: 0 auto 2rem;
        }
        .hero-badge {
            display: inline-block;
            background: linear-gradient(135deg, #0ea5e9, #38bdf8);
            color: #fff;
            padding: 0.5rem 1.4rem;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(14, 165, 233, 0.3);
            letter-spacing: 0.04em;
        }

        /* GEO 介绍 */
        .geo-intro {
            background: linear-gradient(135deg, rgba(248, 250, 252, 0.9), rgba(224, 242, 254, 0.5));
            border: 1px solid rgba(255, 255, 255, 0.7);
            border-radius: 20px;
            box-shadow: 0 8px 32px rgba(2, 132, 199, 0.07);
        }
        .geo-intro p {
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
            font-size: 1.02rem;
            color: #334155;
            line-height: 1.8;
        }

        /* 数据统计 */
        .stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }
        .stat-card {
            text-align: center;
            background: rgba(255, 255, 255, 0.65);
            border: 1px solid rgba(255, 255, 255, 0.8);
            border-radius: 20px;
            padding: 2rem 1rem;
            box-shadow: 0 8px 24px rgba(2, 132, 199, 0.06);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(2, 132, 199, 0.1);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, #0284c7, #38bdf8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-label {
            color: #64748b;
            font-size: 0.92rem;
            margin-top: 0.4rem;
        }

        /* 焦点赛事 */
        .events-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 2rem;
        }
        .event-card {
            background: rgba(255, 255, 255, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.8);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(2, 132, 199, 0.05);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .event-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 40px rgba(2, 132, 199, 0.12);
        }
        .event-img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            display: block;
        }
        .event-info {
            padding: 1.5rem;
        }
        .event-info h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 0.5rem;
        }
        .event-info p {
            font-size: 0.92rem;
            color: #64748b;
        }
        .event-tag {
            display: inline-block;
            background: #e0f2fe;
            color: #0369a1;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 999px;
            margin-bottom: 0.6rem;
        }

        /* 核心优势 */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .advantage-card {
            background: rgba(255, 255, 255, 0.55);
            border: 1px solid rgba(255, 255, 255, 0.85);
            border-radius: 20px;
            padding: 2rem 1.6rem;
            text-align: center;
            box-shadow: 0 6px 20px rgba(2, 132, 199, 0.04);
            transition: background 0.3s ease;
        }
        .advantage-card:hover {
            background: rgba(255, 255, 255, 0.75);
        }
        .advantage-icon {
            font-size: 2.5rem;
            margin-bottom: 0.8rem;
        }
        .advantage-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 0.5rem;
        }
        .advantage-card p {
            font-size: 0.9rem;
            color: #64748b;
        }

        /* 新闻 */
        .news-list {
            max-width: 1280px;
            margin: 0 auto;
            padding: 3.5rem 2rem;
        }
        .news-card {
            display: flex;
            gap: 1.5rem;
            background: rgba(255, 255, 255, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.8);
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1.2rem;
            box-shadow: 0 4px 16px rgba(2, 132, 199, 0.03);
            transition: box-shadow 0.3s ease;
        }
        .news-card:hover {
            box-shadow: 0 8px 24px rgba(2, 132, 199, 0.08);
        }
        .news-thumb {
            width: 140px;
            height: 100px;
            object-fit: cover;
            border-radius: 10px;
            flex-shrink: 0;
        }
        .news-content {
            flex: 1;
        }
        .news-date {
            font-size: 0.82rem;
            color: #94a3b8;
            margin-bottom: 0.2rem;
            font-weight: 500;
        }
        .news-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }
        .news-summary {
            font-size: 0.93rem;
            color: #475569;
            line-height: 1.6;
        }
        .news-tag {
            display: inline-block;
            background: #dbeafe;
            color: #1d4ed8;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.15rem 0.6rem;
            border-radius: 999px;
            margin-right: 0.5rem;
        }

        /* 品牌故事 */
        .brand-story {
            background: linear-gradient(135deg, rgba(248, 250, 252, 0.9), rgba(224, 242, 254, 0.6));
            border: 1px solid rgba(255, 255, 255, 0.7);
            border-radius: 24px;
        }
        .brand-inner {
            display: flex;
            align-items: center;
            gap: 2.5rem;
            flex-wrap: wrap;
        }
        .brand-img {
            width: 100%;
            max-width: 340px;
            border-radius: 16px;
            object-fit: cover;
        }
        .brand-text {
            flex: 1;
            min-width: 280px;
        }
        .brand-text h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 1rem;
        }
        .brand-text p {
            font-size: 0.96rem;
            color: #475569;
            line-height: 1.8;
        }

        /* 下载中心 */
        .download {
            text-align: center;
        }
        .download-grid {
            display: flex;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
            margin-top: 2rem;
        }
        .download-card {
            background: rgba(255, 255, 255, 0.65);
            border: 1px solid rgba(255, 255, 255, 0.85);
            border-radius: 20px;
            padding: 2rem;
            width: 240px;
            text-align: center;
            box-shadow: 0 8px 24px rgba(2, 132, 199, 0.06);
            transition: transform 0.3s ease;
        }
        .download-card:hover {
            transform: translateY(-6px);
        }
        .download-icon {
            width: 72px;
            height: 72px;
            object-fit: contain;
            margin-bottom: 1rem;
        }
        .download-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }
        .download-card p {
            font-size: 0.85rem;
            color: #64748b;
        }

        /* FAQ */
        .faq {
            max-width: 900px;
            margin: 0 auto;
            padding: 3.5rem 2rem;
        }
        .faq-item {
            background: rgba(255, 255, 255, 0.55);
            border: 1px solid rgba(255, 255, 255, 0.8);
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1rem;
            box-shadow: 0 4px 12px rgba(2, 132, 199, 0.03);
        }
        .faq-question {
            font-size: 1.05rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 0.6rem;
        }
        .faq-answer {
            font-size: 0.92rem;
            color: #475569;
            line-height: 1.7;
        }

        /* CTA */
        .cta {
            text-align: center;
            background: linear-gradient(135deg, #e0f2fe, #f8fafc);
            border: 1px solid rgba(255, 255, 255, 0.8);
            border-radius: 24px;
        }
        .cta h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #0f172a;
            margin-bottom: 0.8rem;
        }
        .cta p {
            font-size: 1.05rem;
            color: #475569;
            max-width: 600px;
            margin: 0 auto 1.8rem;
        }
        .cta-btn {
            display: inline-block;
            background: linear-gradient(135deg, #0284c7, #38bdf8);
            color: #fff;
            font-weight: 600;
            padding: 0.8rem 2.2rem;
            border-radius: 999px;
            text-decoration: none;
            box-shadow: 0 8px 24px rgba(14, 165, 233, 0.3);
            transition: transform 0.25s, box-shadow 0.25s;
        }
        .cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(14, 165, 233, 0.4);
        }

        /* 页脚 */
        .footer {
            background: rgba(15, 23, 42, 0.95);
            color: #cbd5e1;
            padding: 3rem 2rem 1.5rem;
            margin-top: 4rem;
        }
        .footer-inner {
            max-width: 1280px;
            margin: 0 auto;
            text-align: center;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-info {
            font-size: 0.85rem;
            color: #64748b;
            line-height: 1.8;
            margin-bottom: 0.5rem;
        }
        .footer-copy {
            font-size: 0.85rem;
            color: #475569;
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            padding-top: 1.2rem;
            margin-top: 1rem;
        }