*{margin:0;padding:0;box-sizing:border-box;font-family:"Microsoft Yahei","PingFang SC",sans-serif}
html,body{min-height:100%}
body{background:#000;display:flex;justify-content:center}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(420px,100%);background:linear-gradient(180deg,#54b4e8 0%,#0f5282 100%);overflow:hidden;position:relative;min-height:100vh}
.banner-img-box,.banner-img-box img{width:100%}.banner-img-box img{height:auto;display:block}
.btn-row{display:flex;padding:15px;gap:12px}
.btn-download,.btn-bind{flex:1;border:0;color:#fff;font-size:22px;padding:16px 0;border-radius:12px;font-weight:700}
.btn-download{background:#2288dd}.btn-bind{background:#ffaa22}.btn-bind.binded{background:#66bb22}
.notice-bar{background:#fff;margin:0 15px;border-radius:8px;display:flex;align-items:center;padding:10px;gap:8px}
.notice-icon{font-size:18px;color:#ff4422}.notice-vertical-wrap{flex:1;height:24px;overflow:hidden;position:relative}.notice-list{position:absolute;width:100%;top:0;transition:top .6s ease}.notice-item{height:24px;line-height:24px;font-size:15px;color:#333;white-space:nowrap}
.switch-box{display:flex;align-items:center;gap:6px;font-size:14px;color:#666;white-space:nowrap}
.mask{position:fixed;inset:0;background:rgba(0,0,0,.7);display:none;align-items:center;justify-content:center;z-index:999;padding:18px}.mask.show{display:flex}
.modal{width:min(340px,100%);background:#fff;border-radius:12px;padding:20px}.modal h3{text-align:center;margin-bottom:15px}.input-item{width:100%;padding:10px;margin:8px 0;border:1px solid #ccc;border-radius:6px;font-size:16px}.modal-btn{width:100%;padding:12px;background:#ff8800;color:#fff;border:0;border-radius:6px;font-size:18px;margin-top:10px}.modal-btn:disabled{opacity:.55;cursor:not-allowed}.form-tip{min-height:20px;font-size:13px;color:#d33;margin-top:2px}.result-text{text-align:center;font-size:18px;margin:10px 0;line-height:1.6}