:root{--canvas: #ecefee;--surface: #ffffff;--surface-soft: #f3f7f5;--surface-sunk: #e7ece9;--sidebar: #f8fbf9;--ink: #0a120f;--ink-2: #1f2d27;--muted: #34423b;--faint: #44534b;--line: #cbd7d1;--line-strong: #a9bbb3;--accent: #0a5b4a;--accent-strong: #074638;--accent-soft: #cfe8df;--accent-ink: #05392e;--signal: #a52e1a;--signal-soft: #fbe3dd;--warn: #6a4700;--warn-soft: #fdf3e2;--ok: #14603c;--ok-soft: #e6f2ea;--agent-bubble: #ecf7f3;--agent-ink: #0b3227;--shadow-pop: 0 18px 48px rgba(18, 33, 29, .16);--shadow-soft: 0 1px 2px rgba(18, 33, 29, .04);--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif}*{box-sizing:border-box}*{scrollbar-width:thin;scrollbar-color:#c9d2ce transparent}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{border:2px solid 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ease}.primary-btn:hover:not(:disabled){background:var(--accent-strong)}.primary-btn:active:not(:disabled){background:#083a31}.primary-btn:disabled{background:#e2e9e5;color:#4e5d56;cursor:not-allowed}.primary-btn.small{height:34px;padding:0 14px;font-size:14px}.link-btn{padding:0;border:none;background:none;color:var(--accent);font-size:14px;line-height:1.6}.link-btn:hover{text-decoration:underline}.link-btn:disabled{color:var(--faint);cursor:default;text-decoration:none}.icon-btn{flex:none;display:grid;place-items:center;width:36px;height:36px;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--ink-2);transition:background .12s ease,border-color .12s ease,color .12s ease}.icon-btn:hover{background:var(--surface-soft);color:var(--ink)}.icon-btn:active{background:var(--surface-sunk)}.ghost-btn{padding:4px 7px;border:none;border-radius:6px;background:transparent;color:var(--muted);font-size:14px;transition:background .12s ease,color .12s ease}.ghost-btn:hover{background:#0f1a160f;color:var(--ink)}.avatar{display:grid;place-items:center;width:42px;height:42px;flex:none;border-radius:13px;background:var(--accent-soft);color:var(--accent-ink);font-size:15px;font-weight:600;line-height:1}.tone-a{background:#dfece6;color:#23604f}.tone-b{background:#eee7d7;color:#6b5326}.tone-c{background:#f1e2dd;color:#8a4634}.tone-d{background:#e2e9f0;color:#365a7a}.tone-e{background:#eae4f0;color:#5c4378}.login-page{display:flex;align-items:center;justify-content:center;min-height:100%;padding:32px 20px;background-color:var(--canvas)}.login-wrap{display:flex;flex-direction:column;gap:20px;width:100%;max-width:392px}.login-brand{display:flex;align-items:center;justify-content:center;gap:10px;color:var(--ink-2);font-size:17.5px;font-weight:600;letter-spacing:.01em}.login-card{display:flex;flex-direction:column;gap:15px;padding:30px 28px 28px;border:1px solid var(--line);border-radius:18px;background:var(--surface);box-shadow:0 10px 30px 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var(--line)}.sidebar-header{display:flex;flex-direction:column;gap:14px;padding:20px 18px 16px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:11px}.brand-mark{display:grid;place-items:center;flex:none;border-radius:10px;background:var(--accent);color:#fff}.brand-text{display:flex;flex-direction:column;gap:3px;min-width:0}.brand-title{font-size:18px;font-weight:600;letter-spacing:-.01em}.conn{display:inline-flex;align-items:center;gap:5px;font-size:13px;font-weight:400;white-space:nowrap}.conn-dot{width:7px;height:7px;flex:none;border-radius:50%;background:currentColor}.conn-ok{color:var(--ok)}.conn-warn{color:#b91c1c;font-weight:600}.conn-ok .conn-dot{background:#22c55e}.conn-warn .conn-dot{width:9px;height:9px;background:#ef4444;animation:conn-pulse 1.3s ease-out infinite}@keyframes conn-pulse{0%{box-shadow:0 0 #ef444499}70%,to{box-shadow:0 0 0 7px #ef444400}}@media (prefers-reduced-motion: reduce){.conn-warn 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.conversation-name{color:var(--accent-ink)}.conversation-side{display:flex;align-items:center;gap:1px;flex:none}.conversation-time{flex:none;color:var(--muted);font-size:13.5px;font-variant-numeric:tabular-nums}.pin-btn,.tag-add-btn{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;padding:0;border:none;border-radius:7px;background:transparent;color:var(--faint);opacity:0;cursor:pointer;transition:opacity .12s ease,background .12s ease,color .12s ease}.conversation:hover .pin-btn,.conversation:hover .tag-add-btn,.conversation:focus-within .pin-btn,.conversation:focus-within .tag-add-btn,.conversation.is-pinned .pin-btn,.conversation.has-tags .tag-add-btn{opacity:1}.pin-btn:hover,.tag-add-btn:hover{background:#0d6a561a;color:var(--accent)}.pin-btn:focus-visible,.tag-add-btn:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.conversation.is-pinned .pin-btn{color:var(--accent)}@media (hover: none){.pin-btn,.tag-add-btn{opacity:.55}}.conversation-tags{display:flex;flex-wrap:wrap;align-items:center;gap:4px;min-width:0;padding-top:1px}.tag-chip{display:inline-flex;align-items:center;gap:1px;max-width:100%;padding:0 3px 0 6px;border:1px solid var(--line);border-radius:6px;background:var(--surface-soft);color:var(--faint);font-size:12.5px;line-height:1.55;white-space:nowrap}.tag-remove{display:inline-flex;align-items:center;justify-content:center;width:15px;height:15px;padding:0;border:none;border-radius:4px;background:transparent;color:inherit;font:inherit;font-size:13px;line-height:1;cursor:pointer}.tag-remove:hover{background:#0a120f1a;color:var(--ink-2)}.tag-remove:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.tag-editor{display:inline-flex;min-width:0}.tag-input{width:92px;max-width:100%;padding:1px 6px;border:1px solid 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var(--line);border-radius:9px;background:var(--surface);color:var(--ink-2)}.chat-identity{display:flex;align-items:center;gap:10px;flex:1;min-width:0}.avatar-sm{width:36px;height:36px;border-radius:11px;font-size:15px}.chat-title{display:flex;flex-direction:column;gap:1px;min-width:0}.chat-name{overflow:hidden;font-size:18px;font-weight:600;white-space:nowrap;text-overflow:ellipsis}.chat-sub{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:14px}.chat-tools{display:flex;align-items:center;gap:12px;flex:none}.chat-stats{display:flex;align-items:center;gap:10px;min-width:0}.chat-stat{color:var(--muted);font-size:13px;white-space:nowrap}.chat-stat b{color:var(--ink-2);font-weight:600;font-variant-numeric:tabular-nums}@media (max-width: 1400px){.chat-stat-optional{display:none}}@media (max-width: 1180px){.chat-stats{display:none}}.messages{flex:1;min-height:0;overflow-y:auto;padding:26px 30px 14px}.load-older{padding:0 0 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img{display:block;max-width:300px;max-height:320px;border-radius:11px;background:var(--surface-sunk);object-fit:contain}.media-video{display:block;max-width:min(420px,100%);max-height:min(540px,70vh);border-radius:11px;background:#0d1211}.media-animation{display:block;max-width:min(320px,100%);max-height:320px;border-radius:11px;background:var(--surface-sunk)}.media-sticker{display:block;max-width:160px;max-height:160px}.media-tgs{width:160px;height:160px}.media-tgs svg{display:block;width:100%!important;height:100%!important}.media-audio{display:block;width:300px}.media-file-name{display:flex;align-items:center;gap:5px;max-width:min(340px,100%);margin-top:6px;color:var(--muted);font-size:13px}.media-file-name .name{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.media-file-name .size{flex:none;color:var(--faint)}.media-file-name svg{flex:none}.file-card{display:flex;align-items:center;gap:10px;max-width:290px;padding:8px 10px;border:1px solid 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