:root{--bg:#0b1220;--panel:#0f172a;--panel2:#0b1328;--text:#eef2ff;--muted:#9aa6c6;--border:#1e2742;--primary:#4ea1ff;--success:#19c37d;--danger:#ff6b6b;--bubble-ai:#18233e;--shadow:0 12px 36px rgba(0,0,0,.35)}*{box-sizing:border-box}html,body,#app{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}.btn{background:var(--primary);color:#fff;border:none;border-radius:12px;padding:10px 14px;font-weight:700;cursor:pointer}.btn:disabled{opacity:.6;cursor:not-allowed}.card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:14px;box-shadow:var(--shadow)}.chat-page{display:flex;height:100%;gap:12px;padding:12px;overflow:hidden}.side{width:300px;min-width:260px;background:var(--panel2);border:1px solid var(--border);border-radius:16px;padding:12px;display:flex;flex-direction:column;gap:10px;overflow:hidden}.conv-list{flex:1;overflow:auto}.main{flex:1;display:flex;flex-direction:column;gap:12px;overflow:hidden}.msgs{flex:1;background:#0a1120;border:1px solid var(--border);border-radius:16px;padding:18px;overflow:auto}.toolbar{display:flex;gap:10px;align-items:center;background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:10px 12px}.toolbar-title{font-weight:800;font-size:15px}.badge{font-size:12px;color:var(--muted)}.row{display:flex;gap:10px;margin:12px 0}.left{justify-content:flex-start}.right{justify-content:flex-end}.avatar{width:34px;height:34px;border-radius:50%;border:1px solid #26314e}.bubble{max-width:72%;padding:12px 14px;border-radius:16px;line-height:1.75;word-break:break-word;position:relative}.bubble.bot{background:var(--bubble-ai);border:1px solid #243152}.bubble.user{background:linear-gradient(135deg,#3b82f6,#22d3ee);color:#fff;border:none}.code pre{background:#0c1a33;border:1px solid #203055;padding:12px;border-radius:12px;overflow:auto}.inputbar{display:flex;gap:8px;background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:10px;align-items:center}.ipt{flex:1;background:#0c162a;border:1px solid var(--border);border-radius:12px;padding:12px;color:var(--text);outline:none}.ipt::placeholder{color:#8ea0bf}.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px;max-height:120px;overflow:auto}.chip{display:inline-flex;align-items:center;gap:6px;background:#12223e;border:1px dashed #2c3f6a;color:#c7d3f4;border-radius:999px;padding:6px 10px;font-size:12px}.chip img{width:18px;height:18px;border-radius:4px;object-fit:cover;border:1px solid #274070}.chip .x{cursor:pointer;opacity:.85}.chip .x:hover{opacity:1}.conv-item{padding:10px;border-radius:12px;border:1px solid var(--border);background:#0f1830;cursor:pointer}.conv-item.active{border-color:#2e66ff;background:#0c1735}.conv-title{font-weight:700}.conv-sub{font-size:12px;color:var(--muted)}.icon-btn{width:32px;height:32px;border-radius:10px;border:1px solid var(--border);background:#0e1730;display:inline-flex;align-items:center;justify-content:center;color:#c7d3f4;cursor:pointer}.icon-btn:hover{filter:brightness(1.1)}.uploader{position:relative}.uploader input[type=file]{position:absolute;left:0;top:0;width:32px;height:32px;opacity:0;cursor:pointer}.typing span{display:inline-block;width:6px;height:6px;background:#c7d3f4;border-radius:50%;margin-right:4px;animation:up 1.2s infinite}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}@keyframes up{0%,80%,to{transform:translateY(0)}40%{transform:translateY(-6px)}}html,body{overflow:hidden}.ipt{resize:none}.conv-title.ell{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}