.pwa-update{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:#333;color:#fff;padding:12px 24px;border-radius:24px;font-size:14px;cursor:pointer;z-index:9999;box-shadow:0 2px 12px #0003}.phone-frame{width:100%;min-height:100vh;background:#f5f5f5;display:flex;flex-direction:column}.phone-top,.phone-bottom{display:none}.phone-screen{width:100%;min-height:100vh}.tab-bar{position:sticky;bottom:0;height:var(--tab-height);background:var(--card-bg);border-top:1px solid var(--border);display:flex;z-index:100;flex-shrink:0}.tab-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11px;color:var(--text-secondary);cursor:pointer;text-decoration:none}.tab-item.active{color:var(--primary)}.tab-item .icon{font-size:20px;margin-bottom:2px}.page-content{flex:1;min-height:0;overflow-y:auto}@media (min-width: 600px){html,body{margin:0;padding:0;height:100%;background:#d4d4d4}body{display:flex;justify-content:center;align-items:center}.phone-frame{width:375px;max-height:85vh;background:#1a1a1a;border-radius:44px;padding:10px 10px 8px;box-shadow:0 0 0 2px #333,0 15px 50px #0006,0 0 0 1px #ffffff14 inset;display:flex;flex-direction:column;overflow:hidden;aspect-ratio:375 / 780}.phone-top{display:flex;justify-content:center;align-items:center;gap:6px;height:28px;background:#1a1a1a;flex-shrink:0;position:relative}.camera-dot{width:10px;height:10px;border-radius:50%;background:#0a0a2e;border:1px solid #333;position:relative}.camera-dot:after{content:"";position:absolute;width:4px;height:4px;border-radius:50%;background:#1a1a5e;top:2px;left:2px}.speaker-bar{width:50px;height:5px;background:#222;border-radius:3px}.phone-screen{flex:1;background:#f5f5f5;border-radius:34px;overflow-y:auto;overflow-x:hidden;min-height:0}.phone-screen::-webkit-scrollbar{width:0}.phone-bottom{display:flex;justify-content:center;align-items:center;height:18px;background:#1a1a1a;flex-shrink:0}.home-bar{width:130px;height:5px;background:#444;border-radius:3px}.phone-screen .page-content{min-height:auto;padding-bottom:20px}}