* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }
        body {
            background-color: #f7f3eb;
            color: #2e241b;
            line-height: 1.6;
            scroll-behavior: smooth;
        }
        /* 导航栏 */
        .navbar {
            background: #1e4a4d;
            background: linear-gradient(145deg, #1a3f42 0%, #0f2e30 100%);
            padding: 0.8rem 2rem;
            /*position: sticky;*/
            top: 0;
            z-index: 999;
            box-shadow: 0 4px 12px rgba(0,0,0,0.2);
        }
        .nav-container {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: #ffd98c;
            text-shadow: 2px 2px 0 #9b5e2e;
            letter-spacing: 2px;
        }
        .logo span {
            color: #f9e0a0;
            font-size: 1rem;
            margin-left: 8px;
        }
        .nav-menu {
            display: flex;
            gap: 1.8rem;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #f2e1c0;
            text-decoration: none;
            font-weight: 500;
            padding: 0.4rem 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
            font-size: 1.1rem;
        }
        .nav-menu a:hover {
            border-bottom-color: #ffbb77;
            color: #fff2d4;
        }
        /* 移动端菜单响应式 */
        @media (max-width: 700px) {
            .nav-container {
                flex-direction: column;
                gap: 10px;
            }
            .nav-menu {
                justify-content: center;
                gap: 1rem;
            }
        }
        /* 主体容器 */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 1.5rem 2rem;
        }
        /* banner区域 */
        .banner {
            background: linear-gradient(135deg, #243b3a 0%, #3d6b61 100%);
            border-radius: 36px 12px 36px 12px;
            padding: 2.5rem 3rem;
            margin: 1.5rem 0 2.5rem;
            color: white;
            box-shadow: 0 15px 25px rgba(0,40,20,0.3);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            border: 1px solid #b8a280;
        }
        .banner-text h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            text-shadow: 3px 3px 0 #1f4a3b;
            letter-spacing: 2px;
        }
        .banner-text p {
            font-size: 1.3rem;
            margin-top: 0.8rem;
            max-width: 600px;
            background: rgba(0,0,0,0.2);
            padding: 0.8rem 1.5rem;
            border-radius: 60px;
            backdrop-filter: blur(2px);
        }
        .banner-emblem {
            background: #e9c891;
            color: #2b4a3d;
            padding: 1rem 2rem;
            border-radius: 60px;
            font-weight: bold;
            font-size: 1.5rem;
            box-shadow: 0 0 0 4px #ffe3a7;
            text-align: center;
        }
        .banner-emblem i {
            margin-right: 8px;
            color: #b64516;
        }
        /* 版块通用 */
        .section {
            background: #fffcf5;
            border-radius: 32px;
            padding: 2rem 2.2rem;
            margin-bottom: 2.5rem;
            box-shadow: 0 10px 20px rgba(96, 66, 36, 0.1);
            border: 1px solid #ebd5b5;
            transition: all 0.2s;
        }
        .section h2 {
            font-size: 2rem;
            margin-bottom: 1.5rem;
            border-left: 12px solid #c79b5e;
            padding-left: 1.2rem;
            color: #2d4f47;
            font-weight: 700;
        }
        .section h2 i {
            color: #b3743a;
            margin-right: 10px;
        }
        .feature-grid, .video-grid, .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.8rem;
            margin-top: 1rem;
        }
        .card {
            background: #f5efe6;
            border-radius: 24px;
            padding: 1.5rem;
            border: 1px solid #dccbb4;
        }
        .card h3 {
            color: #3e655c;
            margin-bottom: 0.8rem;
            border-bottom: 2px dashed #b5946c;
            padding-bottom: 6px;
        }
        strong, b {
            color: #b64516;
            font-weight: 700;
            background: linear-gradient(to right, #fff1cf, transparent);
            padding: 0 4px;
        }
        .btn-download {
            display: inline-block;
            background: #c77933;
            background: linear-gradient(145deg, #d68b45, #b55e24);
            color: white;
            font-weight: bold;
            padding: 12px 28px;
            border-radius: 40px;
            text-decoration: none;
            margin: 0.8rem 0;
            border: 2px solid #ffdd9e;
            box-shadow: 0 6px 0 #6e3d19;
            transition: 0.1s;
        }
        .btn-download:hover {
            transform: translateY(2px);
            box-shadow: 0 3px 0 #6e3d19;
        }
        /* 常见问题区域 */
        .faq-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.8rem;
            margin-top: 1.2rem;
        }
        .faq-item {
            background: #e6ddd0;
            border-radius: 20px;
            padding: 1.4rem;
            box-shadow: inset 0 -2px 0 #b5906b;
        }
        .faq-item h4 {
            font-size: 1.2rem;
            color: #1d423b;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
        }
        .faq-item h4 i {
            color: #c7681b;
            margin-right: 10px;
        }
        /* 热门平台按钮行 */
        .platform-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.2rem;
            margin: 2.2rem 0 1rem;
        }
        .platform-btn {
            background: #fff1da;
            border: 2px solid #b57c4a;
            padding: 0.8rem 1.6rem;
            border-radius: 60px;
            font-size: 1.2rem;
            font-weight: 600;
            color: #2e4b40;
            text-decoration: none;
            transition: 0.2s;
            box-shadow: 0 5px 0 #8f623b;
            flex: 0 1 auto;
            min-width: 140px;
            text-align: center;
        }
        .platform-btn:hover {
            transform: translateY(3px);
            box-shadow: 0 2px 0 #8f623b;
            background: #ffeec2;
        }
        .platform-btn i {
            margin-right: 6px;
            color: #b64516;
        }
        /* footer */
        .footer-note {
            text-align: center;
            margin-top: 3rem;
            padding: 1.5rem;
            border-top: 2px solid #cdb28b;
            color: #4d3f2c;
        }
        /* 站内链接 */
        .section-link {
            text-decoration: underline dotted #9e7f5c;
            color: #3a5f53;
            font-weight: 500;
        }
        hr {
            border: 1px solid #dac29b;
            margin: 2rem 0;
        }