* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
        }
        body {
            background-color: #f9fbfd;
            color: #1a2a3a;
            line-height: 1.6;
            scroll-behavior: smooth;
        }
        /* 容器 */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        /* 头部 & 导航 */
        header {
            background: linear-gradient(145deg, #0b1c2f 0%, #132b41 100%);
            color: white;
            padding: 16px 0;
            box-shadow: 0 6px 12px rgba(0,0,0,0.1);
            /*position: sticky;*/
            top: 0;
            z-index: 100;
        }
        .header-flex {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .logo {
            font-size: 1.7rem;
            font-weight: 700;
            letter-spacing: 1px;
            background: linear-gradient(135deg, #f0c45a, #f7e05e);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .logo span {
            font-size: 1rem;
            color: #aac7e0;
            margin-left: 10px;
            font-weight: 400;
            background: none;
            -webkit-background-clip: unset;
            background-clip: unset;
            color: #c0d9f0;
            text-shadow: none;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
        }
        nav ul li a {
            color: #ecf5fc;
            text-decoration: none;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 40px;
            background: rgba(255,255,255,0.06);
            transition: all 0.2s;
            border: 1px solid rgba(255,255,255,0.1);
            font-size: 0.95rem;
            white-space: nowrap;
        }
        nav ul li a:hover {
            background: #f0c45a;
            color: #0b1c2f;
            border-color: #f0c45a;
        }
        /* banner */
        .banner {
            background: linear-gradient(107deg, #051826 0%, #1d3b54 100%);
            color: white;
            padding: 50px 20px;
            border-radius: 0 0 40px 40px;
            margin-bottom: 40px;
            box-shadow: 0 12px 24px -8px rgba(0,32,64,0.3);
            text-align: center;
        }
        .banner h1 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            font-weight: 800;
            text-shadow: 3px 3px 0 #0a1f2e;
        }
        .banner .highlight {
            color: #ffde7a;
            border-bottom: 3px solid #ffb347;
            display: inline-block;
            padding-bottom: 6px;
        }
        .banner p {
            font-size: 1.4rem;
            max-width: 800px;
            margin: 0 auto;
            background: rgba(0,0,0,0.3);
            padding: 16px 24px;
            border-radius: 60px;
            backdrop-filter: blur(4px);
        }
        /* 版块通用 */
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            margin: 60px 0 30px;
            border-left: 10px solid #f0c45a;
            padding-left: 20px;
            color: #0f293f;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 28px;
            margin-bottom: 40px;
        }
        .card {
            background: white;
            border-radius: 32px;
            padding: 28px 22px;
            box-shadow: 0 12px 26px -8px rgba(0, 35, 60, 0.12);
            transition: transform 0.15s ease;
            border: 1px solid rgba(255,215,120,0.2);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: 0 24px 36px -12px rgba(190, 145, 45, 0.25);
        }
        .card h3 {
            font-size: 1.7rem;
            margin-bottom: 16px;
            color: #1d3e5e;
            border-bottom: 2px dashed #f0c45a;
            padding-bottom: 10px;
        }
        .card p {
            margin-bottom: 16px;
            color: #2a4055;
            font-size: 1.03rem;
        }
        .card strong, .card b {
            color: #b55a2a;
            font-weight: 700;
            background: #fff1d0;
            padding: 0 4px;
            border-radius: 6px;
        }
        .insite-link {
            display: inline-block;
            margin-top: 14px;
            color: #146b9e;
            font-weight: 600;
            text-decoration: none;
            border-bottom: 2px solid #f0c45a;
            padding-bottom: 2px;
        }
        .insite-link:hover {
            color: #b55a2a;
        }
        /* 常见问题区域 */
        .faq-area {
            background: #eef4fa;
            border-radius: 48px 48px 24px 24px;
            padding: 40px 35px;
            margin: 60px 0 40px;
        }
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(1, 1fr);
            gap: 30px 40px;
            margin-top: 25px;
        }
        .faq-item {
            background: white;
            border-radius: 24px;
            padding: 24px;
            box-shadow: 0 5px 12px rgba(0,0,0,0.02);
        }
        .faq-item h4 {
            font-size: 1.4rem;
            color: #103450;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
        }
        .faq-item h4::before {
            content: "⚽";
            margin-right: 12px;
            font-size: 1.8rem;
        }
        .faq-item p {
            color: #1e3b4f;
        }
        .faq-item strong {
            background: #fdefcb;
            padding: 2px 6px;
            border-radius: 12px;
            font-weight: 650;
        }
        /* 热门平台按钮行 */
        .hot-platforms {
            background: #ffffffdd;
            border: 2px solid #f0c45a;
            border-radius: 80px;
            padding: 30px 25px;
            margin: 30px 0 20px;
            text-align: center;
            backdrop-filter: blur(6px);
        }
        .platform-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 18px;
            margin-top: 20px;
        }
        .platform-btn {
            display: inline-block;
            padding: 14px 32px;
            background: linear-gradient(165deg, #1b3e5c, #0b293f);
            color: white !important;
            text-decoration: none;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1.25rem;
            border: 2px solid #fad269;
            box-shadow: 0 8px 14px rgba(0, 30, 50, 0.3);
            transition: 0.15s;
            min-width: 170px;
            letter-spacing: 1px;
        }
        .platform-btn:hover {
            background: #f0c45a;
            color: #0b1c2f !important;
            border-color: #0b1c2f;
            transform: scale(1.02);
        }
        /* 底部 */
        footer {
            background: #0a1f2e;
            color: #bdd3e8;
            padding: 40px 0 20px;
            border-radius: 40px 40px 0 0;
            margin-top: 70px;
            text-align: center;
        }
        .footer-links a {
            color: #f0c45a;
            text-decoration: none;
            margin: 0 15px;
        }
        /* 移动端优化 */
        @media (max-width: 800px) {
            .header-flex {
                flex-direction: column;
                gap: 15px;
            }
            nav ul {
                justify-content: center;
            }
            .banner h1 {
                font-size: 2rem;
            }
            .banner p {
                font-size: 1.1rem;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .platform-buttons {
                flex-direction: column;
                align-items: center;
            }
            .platform-btn {
                width: 100%;
                max-width: 300px;
            }
            .section-title {
                font-size: 1.9rem;
            }
        }
        @media (max-width: 480px) {
            .card h3 {
                font-size: 1.5rem;
            }
        }
        /* 站内链接额外 */
        .back2top {
            text-align: right;
            margin: 10px 0 30px;
        }
        .back2top a {
            background: #1d3e5e;
            color: white;
            padding: 8px 20px;
            border-radius: 40px;
            text-decoration: none;
        }