*{box-sizing:border-box;margin:0;padding:0}body{color:#333;background:#f5f5f5;font-family:system-ui,-apple-system,sans-serif}.app-shell{flex-direction:column;max-width:480px;min-height:100vh;margin:0 auto;display:flex}main{flex:1;padding:16px 16px 0}.bottom-nav{z-index:999;background:#fff;border-top:1px solid #ddd;flex-shrink:0;justify-content:space-around;width:100%;max-width:480px;margin:0 auto;padding:6px 0 4px;display:flex;position:sticky;bottom:0;box-shadow:0 -2px 8px #0000000f}.bottom-nav a{color:#999;text-align:center;flex-direction:column;align-items:center;gap:1px;min-width:44px;padding:4px 6px;text-decoration:none;transition:color .15s;display:flex}.bottom-nav a.router-link-active{color:#1976d2}.bottom-nav .nav-icon{font-size:20px;line-height:1}.bottom-nav .nav-label{font-size:10px;font-weight:500}.card{background:#fff;border-radius:12px;margin-bottom:12px;padding:16px;box-shadow:0 1px 4px #00000014}button{cursor:pointer;border:none;border-radius:8px;padding:12px 24px;font-size:16px;font-weight:600}.btn-primary{color:#fff;background:#1976d2}.btn-danger{color:#fff;background:#e53935}.btn-success{color:#fff;background:#43a047}.btn-outline{color:#1976d2;background:#fff;border:2px solid #1976d2}.btn-lg{width:100%;padding:16px 32px;font-size:18px}input{border:2px solid #e0e0e0;border-radius:8px;width:100%;padding:12px;font-size:16px}input:focus{border-color:#1976d2;outline:none}.muted{color:#999;font-size:14px}