* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, 'Microsoft YaHei', sans-serif;
            background-color: #f5f7fa;
            color: #1d2c3a;
            line-height: 1.6;
        }
        /* 导航栏 - 正式深蓝 */
        .navbar {
            background: #0a2540;
            color: white;
            padding: 0.8rem 5%;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 6px 14px rgba(0,20,40,0.15);
           /* position: sticky;*/
            top: 0;
            z-index: 100;
        }
        .logo {
            font-size: 1.6rem;
            font-weight: 700;
            letter-spacing: 1px;
            background: linear-gradient(145deg, #ffffff, #bfd9ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .logo i {
            color: #ffd966;
            margin-right: 6px;
        }
        .nav-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.4rem;
        }
        .nav-links a {
            color: #e0edff;
            text-decoration: none;
            font-weight: 500;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
            font-size: 1rem;
        }
        .nav-links a:hover {
            border-bottom-color: #f5b342;
            color: white;
        }
        @media (max-width: 720px) {
            .navbar {
                flex-direction: column;
                gap: 0.5rem;
            }
            .nav-links {
                justify-content: center;
            }
        }
        /* banner 正式风格 */
        .banner {
            background: linear-gradient(105deg, #ffffff 0%, #e6f0ff 100%);
            color: #0a2540;
            padding: 3rem 5%;
            text-align: center;
            border-bottom: 5px solid #00468b;
            box-shadow: 0 6px 12px rgba(0,0,0,0.05);
        }
        .banner h1 {
            font-size: clamp(2.4rem, 7vw, 4rem);
            font-weight: 800;
            text-transform: uppercase;
            color: #002856;
            margin-bottom: 1rem;
            letter-spacing: 2px;
        }
        .banner p {
            font-size: 1.4rem;
            max-width: 850px;
            margin: 0.8rem auto;
            background: #ffffffcc;
            padding: 0.8rem 2rem;
            border-radius: 60px;
            border: 1px solid #b0c9e8;
            backdrop-filter: blur(4px);
            font-weight: 500;
        }
        .banner b {
            color: #b64a2a;
            background: #fff2e5;
            padding: 0.2rem 0.6rem;
            border-radius: 30px;
        }
        /* 容器 */
        .container {
            max-width: 1300px;
            margin: 2rem auto;
            padding: 0 5%;
        }
        /* 版块标题 */
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: #0a2540;
            margin: 2.8rem 0 2rem 0;
            border-left: 10px solid #00468b;
            padding-left: 1.4rem;
            background: linear-gradient(to right, #f0f7ff, transparent);
        }
        .section-title i {
            color: #00468b;
            margin-right: 12px;
        }
        /* 卡片网格 */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 2rem;
        }
        .card {
            background: white;
            border-radius: 24px;
            padding: 2rem 1.8rem;
            box-shadow: 0 12px 30px rgba(0, 30, 60, 0.06);
            border: 1px solid #dbe2ed;
            transition: 0.2s;
        }
        .card:hover {
            box-shadow: 0 25px 40px rgba(0, 40, 70, 0.12);
        }
        .card h3 {
            font-size: 1.8rem;
            font-weight: 650;
            color: #003b6f;
            margin-bottom: 1.2rem;
            border-bottom: 3px solid #c5d6f0;
            padding-bottom: 0.5rem;
        }
        .card p, .card li {
            color: #1f3a5c;
            margin-bottom: 1rem;
            font-size: 1.05rem;
        }
        b, strong {
            color: #b45330;
            background: #ffefe3;
            font-weight: 700;
            padding: 0.1rem 0.4rem;
            border-radius: 6px;
        }
        /* 表格结果表 */
        .result-table {
            width: 100%;
            border-collapse: collapse;
            background: #ffffff;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 6px 18px rgba(0,0,0,0.03);
            margin: 1.5rem 0;
            border: 1px solid #b7cae2;
        }
        .result-table th {
            background: #0a2540;
            color: white;
            padding: 0.8rem;
            font-weight: 600;
        }
        .result-table td {
            border: 1px solid #cad5e8;
            padding: 0.7rem;
            text-align: center;
            color: #1e3a5f;
        }
        .result-table tr:nth-child(even) {
            background: #f0f6ff;
        }
        /* faq 样式 */
        .faq-block {
            background: #eaf1fc;
            border-radius: 40px;
            padding: 2rem 2.5rem;
            margin: 2rem 0;
            border: 1px solid #bed3f0;
        }
        .faq-item {
            background: white;
            border-radius: 24px;
            padding: 1.2rem 2rem;
            margin-bottom: 1.2rem;
            border-left: 12px solid #00468b;
            box-shadow: 0 4px 12px rgba(0, 35, 70, 0.05);
        }
        .faq-item h4 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #002856;
            margin-bottom: 0.5rem;
        }
        .faq-item p {
            color: #263d5c;
        }
        /* 平台按钮 */
        .platform-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.5rem;
            margin: 2.5rem 0 2rem;
        }
        .btn-official {
            background: #00468b;
            color: white;
            padding: 0.9rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.1rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            border: 2px solid #b0caf0;
            transition: 0.15s;
            box-shadow: 0 8px 16px rgba(0, 60, 120, 0.2);
        }
        .btn-official i {
            color: #ffd966;
            font-size: 1.2rem;
        }
        .btn-official:hover {
            background: #002f5f;
            border-color: #ffc342;
            transform: translateY(-3px);
        }
        /* 站内链接 */
        .inner-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            justify-content: center;
            background: #ffffff;
            padding: 1.5rem 2rem;
            border-radius: 60px;
            margin: 3rem 0 1rem;
            border: 1px solid #b0c4de;
        }
        .inner-links a {
            color: #00468b;
            font-weight: 600;
            text-decoration: underline wavy #f5b342 1.5px;
        }
        .inner-links a:hover {
            color: #b45330;
        }
        /* footer */
        .footer-official {
            background: #0a2540;
            color: #bed3f0;
            padding: 2.5rem 5%;
            text-align: center;
            border-top: 8px solid #f5b342;
            margin-top: 4rem;
        }
        .footer-official a {
            color: #ffd966;
        }
        /* 返回顶部 */
        .go-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #00468b;
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            box-shadow: 0 6px 18px #003366;
            border: 2px solid #f5b342;
        }
        hr {
            border: 1px solid #b8cde5;
            margin: 2rem 0;
        }
        /* 文字高亮 */
        .note {
            background: #fff8e7;
            padding: 0.8rem;
            border-radius: 16px;
            border-left: 8px solid #f5b342;
        }