* {
            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: #f5f9ff;
            color: #1a2b4c;
            line-height: 1.6;
        }

        /* 海洋主题色调 */
        a {
            text-decoration: none;
            color: #0261a3;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 头部导航 */
        header {
            background: linear-gradient(145deg, #0a3147, #0b3b55);
            color: white;
            padding: 15px 0;
            box-shadow: 0 4px 15px rgba(0,20,30,0.3);
            /*position: sticky;*/
            top: 0;
            z-index: 100;
        }

        .header-flex {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .logo {
            font-size: 1.9rem;
            font-weight: 700;
            letter-spacing: 2px;
            text-shadow: 3px 3px 0 #ff7b2c;
        }
        .logo span {
            color: #ffd966;
            font-size: 1rem;
            margin-left: 5px;
        }

        nav ul {
            display: flex;
            list-style: none;
            gap: 10px 20px;
            flex-wrap: wrap;
        }

        nav ul li a {
            color: #f0f9ff;
            font-weight: 600;
            padding: 6px 12px;
            border-radius: 30px;
            transition: 0.2s;
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,215,0,0.3);
        }

        nav ul li a:hover {
            background: #ff9f4b;
            color: #0a1c2c;
            border-color: #ffd966;
        }

        /* Banner 区域 */
        .banner {
            background: radial-gradient(circle at 10% 30%, #0d4b6e, #022232);
            color: white;
            padding: 50px 20px;
            margin-bottom: 30px;
            border-radius: 0 0 40px 40px;
            text-align: center;
            box-shadow: inset 0 -8px 8px rgba(0,0,0,0.2);
        }

        .banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            text-transform: uppercase;
            text-shadow: 5px 5px 0 #b45104;
            letter-spacing: 2px;
        }
        .banner p {
            font-size: 1.4rem;
            max-width: 800px;
            margin: 20px auto 0;
            background: rgba(0,0,0,0.4);
            padding: 12px 25px;
            border-radius: 60px;
            border: 1px solid #f1c40f;
        }
        .banner p strong {
            color: #ffd966;
            font-weight: 800;
        }

        /* 版块通用样式 */
        .section-card {
            background: white;
            border-radius: 30px;
            padding: 30px 30px;
            margin-bottom: 40px;
            box-shadow: 0 15px 25px -8px rgba(0,45,70,0.15);
            border: 1px solid rgba(255,215,0,0.3);
            transition: transform 0.2s;
        }
        .section-card:hover {
            transform: translateY(-5px);
        }

        .section-title {
            font-size: 2.2rem;
            border-left: 12px solid #f39c12;
            padding-left: 20px;
            margin-bottom: 25px;
            color: #0a3144;
            font-weight: 700;
        }

        .keywords-highlight {
            font-weight: 700;
            color: #c74500;
            background: #fff1e0;
            padding: 2px 6px;
            border-radius: 12px;
        }

        /* 按钮组样式 (底部热门平台) */
        .platform-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
            margin: 25px 0 10px;
        }
        .platform-btn {
            background: #0d3f5c;
            border: 2px solid #f3b33d;
            color: white;
            font-weight: bold;
            padding: 14px 22px;
            border-radius: 60px;
            font-size: 1.2rem;
            box-shadow: 0 6px 0 #7a3e0e;
            transition: 0.1s ease;
            text-align: center;
            min-width: 170px;
            flex: 0 1 auto;
            cursor: pointer;
        }
        .platform-btn:hover {
            background: #145c82;
            transform: translateY(-3px);
            box-shadow: 0 9px 0 #7a3e0e;
        }
        .platform-btn strong {
            font-size: 1.1rem;
            letter-spacing: 0.5px;
        }

        /* 常见问题区域 */
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 15px;
        }
        .faq-item {
            background: #e9f2fa;
            border-radius: 25px;
            padding: 18px 20px;
            border-left: 10px solid #f39c12;
        }
        .faq-question {
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: #003153;
        }

        /* 移动端优化 */
        @media (max-width: 700px) {
            .header-flex {
                flex-direction: column;
                gap: 10px;
            }
            .banner h1 {
                font-size: 2.1rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .platform-btn {
                width: 100%;
            }
        }

        /* 站内链接样式 */
        .inner-link {
            color: #b14f0b;
            font-weight: 600;
            border-bottom: 2px dotted #f3b33d;
        }

        footer {
            background: #03212e;
            color: #b0d4ec;
            padding: 30px 0;
            border-radius: 40px 40px 0 0;
            margin-top: 50px;
        }

        .footer-copy {
            text-align: center;
            margin-top: 30px;
            font-size: 0.95rem;
            border-top: 1px solid #2a5777;
            padding-top: 20px;
        }

        /* 模拟器、视频标记 */
        .badge {
            background: gold;
            color: #1f3a4b;
            padding: 3px 10px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 800;
            margin-left: 10px;
        }