* {
            margin: 0;
            padding: 0;
            font-family: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
        }
        
        body {
            background-color: #0a0e29;
            color: white;
            min-height: 100vh;
            overflow-x: hidden;
            position: relative;
            display: grid;
            place-items: center;
        }
        
        .container {
            max-width: 500px;
            min-width: 375px;
            margin: 0 auto;
            position: relative;
            overflow: hidden;
            display: grid;
            place-items: center;
        }

        .swiper {
            width: 100%;
            height: auto;
            position: relative;
        }
        .swiper-slide {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            /* padding: 20px; */
            position: relative;
        }
        .background-image {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
        }
        .slide-bg{
            /* position: absolute; */
            /* top: 0;
            left: 0; */
            width: 100%;
            /* height: 100%; */
            /* background-size: cover;
            background-position: center; */
            /* z-index: -1; */
        }

        .xuanfutop{
            position: fixed;
            width: 100%;
            left:0;
            top: 0;
            z-index: 999;
            max-width: 500px;
            text-align: center;
            left: 50%;
            transform: translate(-50%);
        }
        .xuanfutop img{
            width: 100%;
            height: auto;
            display: block;
            /* margin: 0 auto; */
        }
        /* 悬浮下载按钮 */
        .download-section {
            position: absolute;
            bottom: 78px;
            left: 0;
            right: 0;
            text-align: center;
            z-index: 100;
        }
        
        .download-btn {
            display: inline-block;
            background-repeat: no-repeat;
            background-image: url('/img/small/downloadbtn.png');
            width: 196px;
            height: 52px;
        }

        .erweima {
            display: inline-block;
            background-repeat: no-repeat;
            background-image: url('/img/small/erweima.png?v=1');
            background-size:100% 100%;
            width: 126px;
            height: 107px;
        }
        
        .download-btn:hover {
            cursor: pointer;
        }

                /* 小屏手机优化 */
        @media (max-height: 640px) {
         .download-btn {
                background-image: url('/img/small/downloadbtn.png');
                width: 196px;
                height: 52px;
            }
            .erweima {
                background-image: url('/img/small/erweima.png?v=1');
                width: 126px;
                height: 107px;
            }
        }

        /* 主流手机 */
        @media (min-height: 667px) {
         .download-btn {
                background-image: url('/img/small/downloadbtn.png');
                width: 196px;
                height: 52px;
            }
            .erweima {
                background-image: url('/img/small/erweima.png?v=1');
                width: 126px;
                height: 107px;
            }
        }

        /* 大屏手机 */
        @media (min-height: 736px) {
            .download-btn {
                background-image: url('/img/small/downloadbtn.png');
                width: 196px;
                height: 52px;
            }
            .erweima {
                display: inline-block;
                /* background-image: url('/img/small/erweima.png?v=1'); */
                width: 126px;
                height: 107px;
            }
        }

        
        @media (min-height: 760px) and (max-height: 1179px) {
            .download-btn {
                background-image: url('/img/small/downloadbtn.png');
                width: 196px;
                height: 52px;
            }
            .erweima {
                display: inline-block;
                background-image: url('/img/small/erweima.png');
                width: 126px;
                height: 107px;
            }
        }

         @media (min-height: 1180px) {
            .download-btn {
                background-image: url('/img/small/downloadbtn.png');
                width: 392px;
                height: 103px;
            }
            .erweima {
                background-image: url('/img/small/erweima.png');
                width: 252px;
                height: 213px;
            }
        }
        
        /* 添加半透明遮罩，提高文字可读性 */
        .content::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to bottom, rgba(10, 14, 41, 0.3), rgba(10, 14, 41, 0.7));
            z-index: -1;
        }