* {
            margin: 0;
            box-sizing: border-box;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        body {
            color: #FF660B;
            display: flex;
            flex-direction: column;
            align-items: center;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", Arial, sans-serif;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding: 16vw 5.33333vw 2.66667vw;
            text-align: center;
            box-sizing: border-box;
            line-height: 1.875;
        }

        .title {
            font-size: 7.963vw;
            color: #FF660B;
            font-weight: bold;
            line-height: 1.5;
            letter-spacing: 0.53333vw;
        }

        .subtitle {
            font-size: 4.444vw;
            color: #FF660B;
            font-weight: 400;
        }

        .logo {
            width: 28.53333vw;
            height: auto;
            position: relative;
            margin: 12.593vw 0 16.111vw 0;
            background-size: contain;
        }

        .text1 {
            font-size: 4.815vw;
            color: #FF660B;
            font-weight: 700;
        }
        
        .text-cn {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
            font-weight: 700;
        }
        
        .text-en {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
            font-weight: 700;
        }

        .text2 {
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 4.259vw;
            color: #FF660B;
        }

        .download-buttons {
            display: flex;
            gap: 3.2vw;
            width: 100%;
            margin-top: 4.66667vw;
        }

        .download-btn {
            background: linear-gradient(270deg, #FF6204 10%, #FC8A50);
            flex: 1;
            height: 13.33333vw;
            color: #fff;
            font-size: 3.889vw;
            /*font-weight: 500;*/
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 2vw;
            transition: 0.25s;
            border-radius: 1.852vw;
            border: none;
            cursor: pointer;
        }

        .ios-btn {
            background: #fff;
            color: #FF660B;
            border: 2px solid #FF660B;
        }

        .btn-icon {
            width: 5.33333vw;
            height: 5.33333vw;
            object-fit: contain;
        }

        .download-btn:hover {
            transform: scale(1.05);
        }

        .copyright {
            color: #FF660B;
            font-size: 2.963vw;
            margin-top: 7.87vw;
            font-weight: 400;
            letter-spacing: .3vw;
        }

        /* 加载遮罩样式 */
        #download-loading-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(2px);
            display: none;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            opacity: 0;
            transition: opacity 0.3s ease-in-out;
        }

        #download-loading-overlay.show {
            opacity: 1;
        }

        .loading-content {
            text-align: center;
            color: white;
            padding: 30px;
            border-radius: 12px;
            background: rgba(0, 0, 0, 0.3);
            backdrop-filter: blur(10px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }

        .spinner {
            width: 50px;
            height: 50px;
            border: 4px solid rgba(255, 255, 255, 0.2);
            border-top: 4px solid #ffffff;
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin: 0 auto 20px;
        }

        @keyframes spin {
            0% {
                transform: rotate(0deg);
            }

            100% {
                transform: rotate(360deg);
            }
        }

        .loading-text {
            font-size: 16px;
            font-weight: 500;
            letter-spacing: 0.5px;
        }

        body.loading-active {
            overflow: hidden;
        }