*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial;background:#f6f7fb;color:#222}#app{max-width:520px;margin:0 auto;min-height:100vh;position:relative;background:#fff}.topbar{position:sticky;top:0;background:linear-gradient(135deg,#5b8cff,#7aa7ff);color:#fff;padding:14px 16px;z-index:9}#view{padding:12px 12px 72px;animation:fade .25s ease}@keyframes fade{from{opacity:.45;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.card{background:#fff;border-radius:14px;padding:12px;margin-bottom:10px;box-shadow:0 3px 10px rgba(0,0,0,.06)}.tabbar{position:fixed;bottom:0;left:0;right:0;max-width:520px;margin:auto;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid #eaeaea}.tabbar button{border:0;background:#fff;padding:12px 0}.tabbar button.active{color:#4a79ff;font-weight:600}.input{width:100%;padding:9px 10px;border:1px solid #ddd;border-radius:10px;margin:5px 0}.btn{border:0;background:#4a79ff;color:#fff;padding:9px 12px;border-radius:10px}.row{display:flex;gap:8px;align-items:center}.between{justify-content:space-between}.small{font-size:12px;color:#666}.media{max-width:100%;border-radius:10px;margin-top:8px}.avatar{width:34px;height:34px;border-radius:999px;object-fit:cover;background:#eee}