:root{--bg: #ffffff;--bg-2: #f6f6f8;--bg-3: #eeeef1;--line: #e2e2e8;--text: #1a1a1f;--muted: #8a8a93;--accent: #ff0032;--accent-2: #d9002b;--user-bubble: #ff0032;--danger: #d10000;--radius: 14px}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;margin:0}html,body{overflow:hidden;position:fixed;width:100%}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;overscroll-behavior:none}button{font-family:inherit;cursor:pointer}.login-screen{height:var(--app-h, 100%);display:flex;align-items:center;justify-content:center;padding:24px;padding-top:calc(24px + env(safe-area-inset-top))}.login-card{width:100%;max-width:360px;background:var(--bg-2);border:1px solid var(--line);border-radius:20px;padding:28px 22px;display:flex;flex-direction:column;gap:12px}.login-logo{font-size:40px;text-align:center;color:var(--accent)}.login-card h1{margin:0;text-align:center;font-size:24px}.login-sub{margin:0 0 8px;text-align:center;color:var(--muted);font-size:14px}.field{width:100%;background:var(--bg-3);border:1px solid var(--line);border-radius:var(--radius);color:var(--text);padding:14px;font-size:16px;outline:none}.field:focus{border-color:var(--accent)}.login-error{color:var(--danger);font-size:14px;text-align:center}.btn-primary{background:var(--accent);color:#fff;border:none;border-radius:var(--radius);padding:14px;font-size:16px;font-weight:600}.btn-primary:disabled{opacity:.6}.link-btn{background:none;border:none;color:var(--accent);font-size:14px;padding:6px}.link-btn.small{font-size:13px;color:var(--muted)}.app{display:flex;position:fixed;left:0;right:0;top:var(--app-top, 0px);height:var(--app-h, 100%);overflow:hidden}.sidebar{width:280px;flex-shrink:0;background:var(--bg-2);border-right:1px solid var(--line);display:flex;flex-direction:column;padding-top:env(safe-area-inset-top)}.sidebar-head{padding:12px}.new-chat-wrap{display:flex;justify-content:center;padding:8px 12px 10px}.btn-new{background:var(--accent);color:#fff;border:none;border-radius:24px;padding:12px 22px;font-size:15px;font-weight:600;display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 6px 18px #ff003252}.btn-new:active{background:var(--accent-2)}.plus{font-size:18px}.search-box{position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:11px;color:var(--muted);pointer-events:none}.search-input{width:100%;background:var(--bg-3);border:1px solid var(--line);border-radius:10px;color:var(--text);padding:9px 30px 9px 34px;font-size:15px;outline:none}.search-input:focus{border-color:var(--accent)}.search-input::placeholder{color:var(--muted)}.search-clear{position:absolute;right:6px;width:22px;height:22px;border:none;background:none;color:var(--muted);font-size:18px;line-height:1;display:flex;align-items:center;justify-content:center;border-radius:50%}.search-clear:active{background:var(--line)}.conv-list{flex:1;overflow-y:auto;padding:0 8px}.conv-empty{color:var(--muted);font-size:14px;text-align:center;padding:24px 8px}.conv-item{display:flex;align-items:center;gap:6px;padding:11px 10px;border-radius:10px;margin-bottom:2px;cursor:pointer}.conv-item:active,.conv-item.active{background:var(--bg-3)}.conv-title{flex:1;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conv-del{background:none;border:none;color:var(--muted);font-size:20px;line-height:1;padding:0 4px;opacity:.5}.conv-item.active .conv-del,.conv-item:hover .conv-del{opacity:1}.sidebar-foot{border-top:1px solid var(--line);padding:12px;padding-bottom:calc(12px + env(safe-area-inset-bottom));display:flex;align-items:center;justify-content:space-between}.user-badge{display:flex;align-items:center;gap:8px;font-size:14px}.user-dot{width:8px;height:8px;border-radius:50%;background:#34c759}.chat{flex:1;display:flex;flex-direction:column;min-width:0}.chat-header{display:flex;align-items:center;gap:10px;padding:10px 14px;padding-top:calc(10px + env(safe-area-inset-top));border-bottom:1px solid var(--line);background:#ffffffd9;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.icon-btn{background:none;border:none;color:var(--text);font-size:20px;padding:4px 8px;display:none}.model-select{background:var(--bg-3);color:var(--text);border:1px solid var(--line);border-radius:10px;padding:7px 10px;font-size:14px;outline:none;max-width:100%}.chat-header .new-btn{display:flex;align-items:center;justify-content:center;margin-left:auto;width:38px;height:38px;border-radius:10px;background:var(--bg-3);border:1px solid var(--line);color:var(--accent);font-size:24px;font-weight:300;line-height:1;padding:0}.chat-header .new-btn:active{background:var(--line)}.chat-header .new-btn:disabled{opacity:.4}.messages-wrap{position:relative;flex:1;min-height:0;display:flex;flex-direction:column}.scroll-down-btn{position:absolute;right:14px;bottom:14px;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--bg-2);color:var(--text);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px #00000026;z-index:5}.scroll-down-btn:active{background:var(--bg-3)}.messages{flex:1;min-height:0;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px;-webkit-overflow-scrolling:touch}.welcome{margin:auto;text-align:center;color:var(--muted)}.welcome-logo{font-size:44px;color:var(--accent)}.welcome h2{color:var(--text);margin:8px 0 4px}.msg{display:flex;max-width:100%}.msg-user{justify-content:flex-end}.msg-assistant{justify-content:flex-start}.msg-col{display:flex;flex-direction:column;max-width:82%}.msg-user .msg-col{align-items:flex-end}.msg-assistant .msg-col{align-items:flex-start}.bubble{max-width:100%;padding:11px 14px;border-radius:18px;font-size:15px;line-height:1.5;word-wrap:break-word;overflow-wrap:anywhere}.msg-time{font-size:11px;color:var(--muted);margin-left:4px;font-variant-numeric:tabular-nums;white-space:nowrap}.msg-actions{display:flex;align-items:center;gap:2px;margin-top:3px}.act-btn{background:none;border:none;color:var(--muted);padding:5px 7px;cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:7px}.act-btn:active{color:var(--accent);background:var(--bg-2)}.act-btn.active{color:var(--accent)}.act-btn .mini-spinner{width:15px;height:15px}.rate-btn{font-size:12px;font-weight:700;min-width:30px;color:var(--accent);font-variant-numeric:tabular-nums}.msg-user .bubble{background:var(--user-bubble);color:#fff;border-bottom-right-radius:6px}.msg-assistant .bubble{background:var(--bg-2);border:1px solid var(--line);border-bottom-left-radius:6px}.text-block{white-space:pre-wrap}.code-block{background:#f4f4f6;border:1px solid var(--line);border-radius:10px;padding:12px;overflow-x:auto;font-size:13.5px;margin:8px 0}.code-block code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;white-space:pre}.md{font-size:15px;line-height:1.5}.md>*:first-child{margin-top:0}.md>*:last-child{margin-bottom:0}.md p{margin:0 0 8px}.md h1,.md h2,.md h3,.md h4{margin:14px 0 6px;line-height:1.3;font-weight:700}.md h1{font-size:1.35em}.md h2{font-size:1.2em}.md h3{font-size:1.08em}.md h4{font-size:1em}.md ul,.md ol{margin:6px 0 8px;padding-left:22px}.md li{margin:2px 0}.md li>ul,.md li>ol{margin:2px 0}.md a{color:var(--accent);text-decoration:none}.md a:active{text-decoration:underline}.md blockquote{margin:8px 0;padding:2px 0 2px 12px;border-left:3px solid var(--line);color:var(--muted)}.md hr{border:none;border-top:1px solid var(--line);margin:12px 0}.md code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em;background:#0000000f;padding:1px 5px;border-radius:5px}.md pre{background:#f4f4f6;border:1px solid var(--line);border-radius:10px;padding:12px;overflow-x:auto;margin:8px 0}.md pre code{background:none;padding:0;font-size:13.5px;white-space:pre}.md table{border-collapse:collapse;margin:8px 0;font-size:14px;display:block;overflow-x:auto}.md th,.md td{border:1px solid var(--line);padding:6px 9px;text-align:left}.md th{background:var(--bg-3)}.md img{max-width:100%;border-radius:8px}.typing{display:inline-flex;gap:4px;padding:4px 0}.typing i{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:blink 1.4s infinite both}.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}@keyframes blink{0%,80%,to{opacity:.2}40%{opacity:1}}.attach-btn{width:44px;height:44px;flex-shrink:0;border-radius:50%;border:1px solid var(--line);background:var(--bg-3);color:var(--accent);font-size:24px;font-weight:300;line-height:1;display:flex;align-items:center;justify-content:center}.attach-btn:disabled{opacity:.5}.attach-row{display:flex;flex-wrap:wrap;gap:8px;padding:8px 12px 0}.attach-chip{position:relative;display:flex;align-items:center}.attach-thumb{width:56px;height:56px;object-fit:cover;border-radius:10px;border:1px solid var(--line)}.attach-file{max-width:200px;padding:8px 10px;background:var(--bg-3);border:1px solid var(--line);border-radius:10px;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.attach-remove{position:absolute;top:-6px;right:-6px;width:20px;height:20px;border-radius:50%;border:none;background:var(--danger);color:#fff;font-size:14px;line-height:1;display:flex;align-items:center;justify-content:center}.think-btn{flex-shrink:0;height:38px;padding:0 11px;border-radius:10px;background:var(--bg-3);border:1px solid var(--line);color:var(--muted);display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.05;font-size:11px;font-weight:700;letter-spacing:.2px}.think-btn.on{background:var(--accent);border-color:var(--accent);color:#fff}.reasoning{align-self:flex-start;max-width:100%;margin-bottom:6px;background:var(--bg-2);border:1px solid var(--line);border-radius:12px;overflow:hidden}.reasoning-head{display:flex;align-items:center;gap:8px;width:100%;background:none;border:none;color:var(--muted);font-size:13px;padding:8px 12px;text-align:left}.reasoning-spin-wrap{display:inline-flex;align-items:center}.reasoning-chevron{margin-left:auto;font-size:11px}.reasoning-body{padding:8px 12px 10px;font-size:13px;line-height:1.5;color:var(--muted);white-space:pre-wrap;border-top:1px solid var(--line);max-height:320px;overflow-y:auto}.search-chip{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;font-size:13px;color:var(--muted);background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:7px 12px;margin-bottom:6px}.search-spin{width:13px;height:13px;border:2px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}.sources{margin-top:8px;align-self:flex-start;max-width:100%;background:var(--bg-2);border:1px solid var(--line);border-radius:12px;overflow:hidden}.sources-head{display:flex;align-items:center;gap:8px;width:100%;background:none;border:none;color:var(--muted);font-size:13px;padding:8px 12px;text-align:left}.sources-body{display:flex;flex-direction:column;gap:5px;padding:8px 12px 10px;border-top:1px solid var(--line)}.source-link{font-size:13px;color:var(--accent);text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.source-link:active{text-decoration:underline}.msg-images{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:6px}.msg-image{max-width:220px;max-height:260px;border-radius:14px;border:1px solid var(--line);object-fit:cover}.composer{display:flex;align-items:flex-end;gap:8px;padding:10px 12px;padding-bottom:calc(10px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:var(--bg-2)}.kb-open .composer{padding-bottom:10px}.composer-input-wrap{flex:1;min-width:0;position:relative;display:flex}.composer-input{flex:1;width:100%;resize:none;background:var(--bg-3);border:1px solid var(--line);border-radius:20px;color:var(--text);padding:12px 40px 12px 16px;font-size:16px;line-height:1.4;outline:none;max-height:200px;font-family:inherit}.expand-btn{position:absolute;top:7px;right:8px;width:26px;height:26px;border-radius:7px;border:none;background:transparent;color:var(--muted);display:flex;align-items:center;justify-content:center;padding:0}.expand-btn:active{color:var(--accent);background:var(--bg-2)}.composer.expanded .composer-input{height:calc(var(--app-h, 100dvh) * .45);max-height:calc(var(--app-h, 100dvh) * .45)}.composer-input:focus{border-color:var(--accent)}.send-btn{width:44px;height:44px;flex-shrink:0;border-radius:50%;border:none;background:var(--accent);color:#fff;font-size:20px;display:flex;align-items:center;justify-content:center}.send-btn:disabled{opacity:.4}.send-btn.stop{background:var(--bg-3);border:1px solid var(--line);font-size:15px}.mic-btn{width:44px;height:44px;flex-shrink:0;border-radius:50%;border:1px solid var(--line);background:var(--bg-3);color:var(--text);font-size:18px;display:flex;align-items:center;justify-content:center}.mic-btn:disabled{opacity:.5}.mic-btn.recording{background:var(--danger);border-color:var(--danger);color:#fff;font-size:15px;animation:recpulse 1.3s ease-in-out infinite}@keyframes recpulse{0%,to{box-shadow:0 0 #ff5a5a80}50%{box-shadow:0 0 0 8px #ff5a5a00}}.mini-spinner{width:18px;height:18px;border:2px solid var(--muted);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.rec-banner{display:flex;align-items:center;gap:8px;justify-content:center;font-size:13px;color:var(--muted);padding:6px 12px}.rec-dot{width:9px;height:9px;border-radius:50%;background:var(--danger);animation:recpulse 1.3s ease-in-out infinite}.asr-error{color:var(--danger);font-size:13px;text-align:center;padding:6px 12px}.scrim{display:none}@media(max-width:760px){.icon-btn{display:block}.sidebar{position:fixed;top:0;bottom:0;left:0;z-index:30;transform:translate(-100%);transition:transform .25s ease;box-shadow:0 0 40px #00000040}.app.drawer-open .sidebar{transform:translate(0)}.scrim{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;z-index:20}}