:root{color-scheme:dark;font-family:Inter,Noto Sans SC,Microsoft YaHei,system-ui,sans-serif;color:#e8eef8;background:#080d16;font-synthesis:none;--bg: #080d16;--panel: #0d1522;--panel-2: #111c2c;--line: #223149;--line-soft: #18263a;--text: #e8eef8;--muted: #8998af;--accent: #4bc5b4;--accent-strong: #2da18f;--warn: #f5b85a;--danger: #f07178}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--bg)}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.42}a{color:inherit}.login-shell,.loading-screen{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 50% 10%,#112238 0,var(--bg) 43%)}.login-card{width:min(440px,100%);border:1px solid var(--line);border-radius:18px;padding:38px;background:#0d1522f5;box-shadow:0 24px 70px #00000059}.brand-mark{width:50px;height:50px;border:1px solid #326a67;border-radius:14px;background:#102927;color:#74ddcd;display:grid;place-items:center}.brand-mark.small{width:34px;height:34px;border-radius:10px}.eyebrow{margin:26px 0 5px;color:var(--accent);font:600 11px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.16em}h1,h2,h3,p{margin-top:0}.login-card h1{margin:0 0 12px;font-size:30px}.muted{color:var(--muted);line-height:1.65}.login-card form{display:grid;gap:11px;margin-top:29px}label{color:#b8c4d4;font-size:13px}input,textarea,select{color:var(--text);background:#09111d;border:1px solid var(--line);border-radius:9px;outline:none}input{height:44px;padding:0 13px}textarea{resize:vertical;padding:13px 14px;line-height:1.55}select{height:40px;padding:0 34px 0 11px}input:focus,textarea:focus,select:focus{border-color:#3b897f;box-shadow:0 0 0 3px #4bc5b414}.primary-button,.secondary-button,.new-chat-button,.inline-form button{border:1px solid 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h1{margin-bottom:0;font-size:24px}.model-control{display:flex;align-items:center;gap:9px}.model-control select{max-width:330px}.warning-banner,.notice-banner,.controller-status{margin:12px 28px 0;padding:10px 13px;border-radius:8px;display:flex;align-items:center;gap:9px;font-size:13px}.warning-banner{border:1px solid #654c26;color:#f7d599;background:#241c10}.notice-banner{border:1px solid #284b65;color:#badff6;background:#0e2030}.warning-banner button,.notice-banner button{margin-left:auto;border:0;border-radius:6px;padding:6px 10px;background:#2a3d46;color:#d8edf0}.messages{overflow-y:auto;padding:24px clamp(22px,7vw,100px)}.empty-chat{min-height:45vh;display:grid;place-content:center;justify-items:center;color:#718096;text-align:center}.empty-chat h2{margin:18px 0 7px;color:#cbd6e6;font-size:19px}.message{max-width:820px;margin:0 auto 22px}.message-role{margin-bottom:7px;color:var(--accent);font:600 11px/1 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