*{box-sizing:border-box;margin:0;padding:0}body{background-color:#f5f5f5;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.app-container{background:#fff;max-width:480px;min-height:100vh;margin:0 auto;position:relative;box-shadow:0 0 20px #0000000d}.status-bar{background:#fff;height:44px}.main-content{min-height:calc(100vh - 104px);padding-bottom:60px;overflow-y:auto}.bottom-nav{z-index:1000;background:#fff;border-top:1px solid #eee;justify-content:space-around;align-items:center;width:100%;max-width:480px;height:60px;display:flex;position:fixed;bottom:0;left:50%;transform:translate(-50%)}.nav-item{cursor:pointer;color:#999;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:8px 0;display:flex}.nav-item.active{color:#8b5cf6}.nav-icon{margin-bottom:2px;font-size:22px}.nav-text{font-size:11px}.nav-publish{flex:1}.publish-btn{color:#fff;background:#8b5cf6;border-radius:6px;justify-content:center;align-items:center;width:44px;height:28px;font-size:24px;font-weight:300;display:flex}