:root{font-family:PingFang SC,Microsoft YaHei,Arial,sans-serif;color:#303133;background:#f5f5f5;--theme-green: #22ac38;--theme-green-light: #4ebd60;--theme-green-soft: #f6fbf7;font-synthesis:weight style;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}html,body,#app{min-height:100%;background:#f5f5f5}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:#f5f5f5}button{font:inherit;outline:none;-webkit-tap-highlight-color:transparent}.download-page{min-height:100vh;padding:36px 20px 48px;background:#f5f5f5;overflow-x:hidden;position:relative}.hero{max-width:1280px;width:100%;margin:0 auto 28px;text-align:center;position:relative;z-index:1}.hero h1{margin:0;font-size:46px;line-height:1.15;letter-spacing:0;color:#111;font-weight:700}.hero p{margin:14px 0 0;color:#606266;font-size:18px}.panel{max-width:1280px;width:100%;margin:0 auto;position:relative;z-index:1;border:1px solid #dcdfe6;border-radius:14px;background:#fff;box-shadow:0 8px 22px rgba(34,172,56,.5)}.device-panel{padding:18px}.device-list{display:flex;flex-direction:column;gap:0;margin-top:0}.device-group{display:flex;flex-direction:column;overflow:hidden;border:1px solid #d4d7de;border-radius:14px;background:#fff;box-shadow:0 4px 14px rgba(0,0,0,.05)}.device-row{width:100%;min-height:96px;display:flex;align-items:center;padding:20px 42px;border:0;border-radius:0;color:#303133;background:#fff;cursor:pointer;text-align:left;-webkit-appearance:none;appearance:none;overflow:hidden;background-clip:padding-box;outline:none;transition:border-color .16s ease,background .16s ease,transform .16s ease}.device-row:focus,.device-row:focus-visible,.device-row:active{outline:none}.device-row .device-icon{width:44px;flex-shrink:0}.device-row .device-name{flex:1}.device-row .row-arrow{width:20px;height:20px;flex-shrink:0;color:inherit}.device-row:hover{background:#f7f9fc}.device-row.active{color:var(--theme-green);background:var(--theme-green-soft)}.device-group+.device-group{margin-top:14px}.device-icon,.version-icon{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;color:inherit}.device-icon svg,.version-icon svg,.download-btn svg{width:28px;height:28px}.device-name{font-weight:800;font-size:20px}.row-arrow{width:20px;height:20px}.version-panel{margin:0;padding:18px 42px 22px;background:#fff;border-top:1px solid #e1e5ec}.version-list{display:flex;flex-direction:column}.version-row{min-height:72px;display:flex;align-items:center;padding:14px 22px;border:1px solid #d8dde6;border-radius:12px;background:#fff}.version-row+.version-row{margin-top:10px}.version-main{flex:1;min-width:0}.version-main h3{margin:0;color:#303133;font-size:18px;line-height:1.25;letter-spacing:0}.version-main p{margin:4px 0 0;color:#606266;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.version-size{color:#606266;white-space:nowrap;flex-shrink:0;text-align:right;margin-right:18px}.version-size span{display:block;margin-bottom:4px}.version-size strong{display:inline-flex;align-items:center;gap:6px;color:#303133;font-size:14px}.version-size svg{width:18px;height:18px}.download-btn{width:100px;height:40px;display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:8px;color:#fff;font-weight:700;font-size:14px;background:linear-gradient(180deg,var(--theme-green-light),var(--theme-green));box-shadow:0 12px 24px rgba(34,172,56,.24);cursor:pointer;flex-shrink:0;margin-left:18px}.download-btn:hover{filter:brightness(1.06)}.download-btn:disabled{cursor:not-allowed;opacity:.5}.download-btn svg{width:18px;height:18px}.state-box{min-height:64px;display:flex;align-items:center;justify-content:center;gap:8px;border:1px dashed #d1d5db;border-radius:8px;color:#4b5563;background:#f9fafb;padding:12px}.state-icon{width:18px;height:18px;flex-shrink:0}.state-box.error{color:#606266;border-color:#d8eadb;background:#f8fcf8}.state-box.error .state-icon{color:var(--theme-green-light)}@media(max-width:760px){.download-page{padding:24px 12px}.hero h1{font-size:32px}.hero p{font-size:15px}.device-panel{padding:12px}.device-row{min-height:72px;padding:16px 14px}.version-panel{padding:14px}.version-row{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"main size" "main button";align-items:start;column-gap:12px;row-gap:8px;padding:12px 12px 12px 14px}.version-main{grid-area:main}.version-main h3{font-size:16px}.version-size{grid-area:size;width:auto;margin:0;text-align:right}.download-btn{grid-area:button;width:84px;height:34px;margin:0;justify-self:end;font-size:13px}.download-btn svg{width:16px;height:16px}}