#yide-app{background:#f5f6fa;flex-direction:column;min-height:100vh;display:flex}.header{color:#fff;text-align:center;z-index:100;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);padding:12px 16px;font-size:18px;font-weight:600;position:sticky;top:0}.main{flex:1;padding-bottom:60px;overflow-y:auto}.tabbar{z-index:100;background:#fff;border-top:1px solid #eee;padding:6px 0;display:flex;position:fixed;bottom:0;left:0;right:0}.tab-item{color:#999;flex-direction:column;flex:1;align-items:center;padding:4px 0;font-size:12px;text-decoration:none;display:flex}.tab-item.active{color:#667eea}.tab-icon{margin-bottom:2px;font-size:20px}.tab-label{font-size:11px}