html,body,div,img{padding:0;margin:0}img{vertical-align:top}.fixed-video{position:fixed;top:0;left:0;width:100%;height:100%;object-fit:cover;z-index:-1}.fixed-video.mobile{object-fit:cover}.video-placeholder{background:linear-gradient(45deg,#000,#333)}@media (max-width: 768px){.fixed-video{height:100vh;object-fit:cover}}.logo{position:fixed;top:2%;left:5%;z-index:999}.logo img{height:100%}.shangwu{position:fixed;top:2%;right:5%;z-index:999}.shangwu a{margin-right:1%;float:right}.shangwu img{height:100%}.center{margin:0 auto;text-align:center;z-index:9999;font-weight:700;position:absolute}.center .title{color:#fff}.center .f_title{color:#ff0}.center .info{color:#f7b8a0}.center .btn_list{display:flex;justify-content:center;align-items:center}.footer{position:absolute;bottom:0;z-index:9999;width:100%}.btn{color:#ffb6c1;padding:10px 20px;font-size:16px;cursor:pointer;border-radius:20px;transition:background-color .3s ease;float:left;margin:10px;background:#ffffff26;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.3)}@media (min-width: 751px){.shangwu{width:105%}.center{font-size:3rem;width:80%;top:25%;left:10%}.center .title{font-size:5.5rem}.center .info{line-height:4.5rem}.center .btn_list{width:100%;margin:0 auto}.btn{width:10%}.wap_btn{display:none}.left_text{position:absolute;left:0;bottom:0}.right_text{position:absolute;right:20px;bottom:20px}#qrcode{text-align:center;font-weight:700}#qrcode img{padding:5px;border-radius:10px;background-color:#fff}}@media (max-width: 750px){.shangwu{width:40%}.shangwu a{margin-top:3%}.center{font-size:1.5rem;width:90%;top:25%;left:5%}.center .title{font-size:3rem}.center .info{line-height:2.5rem}.center .btn_list{width:100%;margin:0 auto}.btn{width:4%}.footer{bottom:2%}.wap_btn{width:16%;margin-left:36%;text-align:center;padding:10px 5%;border-radius:10px;color:gold}.left_text,.right_text{display:none}}