* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'Noto Sans', sans-serif;
        }
        body {
            background: #f4f7fb;
            color: #1e2b3c;
            line-height: 1.6;
            scroll-behavior: smooth;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* 头部导航 */
        header {
            background: #0a1c2f;
            color: white;
            padding: 16px 0;
            /*position: sticky;*/
            top: 0;
            z-index: 10;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-flex {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .logo {
            font-size: 1.7rem;
            font-weight: 700;
            background: linear-gradient(145deg, #fdbb2d, #ffef9a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 1px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
        }
        .nav-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            list-style: none;
        }
        .nav-menu a {
            color: #ecf0f3;
            text-decoration: none;
            font-weight: 500;
            padding: 6px 4px;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
            font-size: 1.05rem;
        }
        .nav-menu a:hover {
            border-bottom-color: #fdbb2d;
            color: #fdbb2d;
        }
        /* banner */
        .banner {
            background: linear-gradient(105deg, #0b2b44 0%, #1b4a6f 100%);
            color: white;
            padding: 48px 32px;
            border-radius: 0 0 40px 40px;
            margin-bottom: 40px;
            box-shadow: 0 10px 20px rgba(0,20,40,0.2);
        }
        .banner-content h1 {
            font-size: 2.3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            text-shadow: 2px 2px 6px #00000030;
        }
        .banner-content p {
            font-size: 1.25rem;
            max-width: 800px;
            opacity: 0.95;
            margin-bottom: 24px;
        }
        .banner-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 20px;
        }
        .stat-item {
            background: #ffffff20;
            backdrop-filter: blur(4px);
            padding: 10px 22px;
            border-radius: 40px;
            font-weight: 600;
            border: 1px solid #ffffff40;
        }
        /* 通用区块 */
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin: 48px 0 28px 0;
            padding-left: 18px;
            border-left: 8px solid #fdbb2d;
            color: #0a1c2f;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 28px;
            margin-bottom: 40px;
        }
        .card {
            background: white;
            border-radius: 28px;
            padding: 28px 22px;
            box-shadow: 0 8px 22px rgba(0, 0, 0, 0.04);
            transition: transform 0.15s ease, box-shadow 0.2s;
            border: 1px solid #e9eef3;
        }
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 18px 30px rgba(0, 30, 60, 0.08);
        }
        .card h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: #163a5c;
        }
        .card h3 span {
            background: #fdbb2d20;
            padding: 4px 12px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 400;
            margin-left: 10px;
            color: #b87c00;
        }
        .card p {
            color: #2f4057;
            margin-bottom: 10px;
            font-size: 1.03rem;
        }
        .card p strong {
            color: #0e4b7a;
            background: #e7f0ff;
            padding: 2px 6px;
            border-radius: 12px;
            font-weight: 600;
        }
        .insite-link {
            display: inline-block;
            margin-top: 16px;
            color: #1a5d9c;
            font-weight: 600;
            text-decoration: none;
            border-bottom: 2px dotted #9bb8da;
        }
        .insite-link:hover {
            color: #fdbb2d;
            border-bottom-color: #fdbb2d;
        }
        /* 常见问题 */
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
            background: #ecf3fa;
            padding: 32px;
            border-radius: 48px;
            margin: 36px 0;
        }
        .faq-item {
            background: white;
            border-radius: 28px;
            padding: 24px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.02);
        }
        .faq-question {
            font-weight: 700;
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: #003366;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .faq-question::before {
            content: "❓";
            font-size: 1.5rem;
        }
        .faq-answer {
            color: #1e3a5f;
            padding-left: 40px;
        }
        .faq-answer strong {
            background: #fdefd4;
            padding: 2px 8px;
            border-radius: 20px;
            font-weight: 650;
        }
        /* 热门平台按钮区域 */
        .hot-platforms {
            background: #ffffffdd;
            backdrop-filter: blur(4px);
            border-radius: 60px;
            padding: 32px 28px;
            margin: 30px 0 50px;
            border: 2px solid #ceddec;
            text-align: center;
        }
        .hot-platforms h2 {
            font-size: 2rem;
            margin-bottom: 24px;
            color: #122c44;
        }
        .button-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 18px;
        }
        .platform-btn {
            background: #0f2f4f;
            color: white;
            padding: 15px 30px;
            border-radius: 60px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.2rem;
            border: 2px solid transparent;
            transition: 0.2s;
            min-width: 160px;
            box-shadow: 0 6px 12px rgba(7, 48, 88, 0.2);
            display: inline-block;
            text-align: center;
        }
        .platform-btn:hover {
            background: #fdbb2d;
            color: #0a1c2f;
            border-color: #ffffff;
            transform: scale(1.02);
        }
        /* 底部链接 */
        footer {
            background: #0a1c2f;
            color: #b0c7dd;
            padding: 32px 0;
            text-align: center;
            border-radius: 40px 40px 0 0;
            margin-top: 40px;
        }
        .footer-links a {
            color: #fdbb2d;
            text-decoration: none;
            margin: 0 12px;
        }
        /* 移动端优化 */
        @media (max-width: 700px) {
            .banner-content h1 { font-size: 1.8rem; }
            .logo { font-size: 1.4rem; }
            .nav-menu { gap: 8px; }
            .section-title { font-size: 1.8rem; }
            .card h3 { font-size: 1.4rem; }
            .button-row { flex-direction: column; align-items: center; }
            .platform-btn { width: 80%; }
        }
        /* 站内链接高亮 */
        .keyword-bold {
            font-weight: 700;
            color: #003d66;
            background: linear-gradient(90deg, #f9eec1, transparent);
            padding: 0 4px;
        }
        /* 装饰 */
        hr.divider {
            border: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, #a0c4e2, transparent);
            margin: 30px 0;
        }