:root{--bg: #0f1115;--panel: #161a21;--panel-2: #1c2129;--border: #262c36;--text: #e6e8ec;--muted: #8b93a1;--accent: #4f8cff;--user: #2a3140;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text)}button{cursor:pointer;font-family:inherit}.link{background:none;border:none;color:var(--accent);padding:0 4px}.muted{color:var(--muted);font-size:13px;line-height:1.6}.boot{display:grid;place-items:center;height:100%;color:var(--muted)}.auth-wrap{display:grid;place-items:center;height:100%;padding:24px}.auth-card{width:100%;max-width:360px;background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:32px}.auth-title{font-size:24px;margin:0 0 4px}.auth-sub{color:var(--muted);font-size:14px;margin:0 0 24px;line-height:1.6}.auth-form{display:flex;flex-direction:column;gap:12px}.input{background:var(--panel-2);border:1px solid var(--border);border-radius:10px;padding:12px 14px;color:var(--text);font-size:15px}.input:focus{outline:none;border-color:var(--accent)}.auth-error{color:#ff6b6b;font-size:13px}.btn-primary{background:var(--accent);color:#fff;border:none;border-radius:10px;padding:12px;font-size:15px}.btn-primary:disabled{opacity:.6}.auth-switch{margin-top:16px;text-align:center;color:var(--muted);font-size:14px}.app{display:grid;grid-template-columns:260px 1fr 320px;height:100%}.sidebar{background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:12px}.btn-new{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:10px;margin-bottom:12px}.conv-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:4px}.conv-item{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:8px;font-size:14px;color:var(--muted)}.conv-item:hover{background:var(--panel-2)}.conv-item.active{background:var(--panel-2);color:var(--text)}.conv-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.conv-del{background:none;border:none;color:var(--muted);font-size:18px;line-height:1;opacity:0}.conv-item:hover .conv-del{opacity:1}.sidebar-foot{display:flex;align-items:center;justify-content:space-between;padding:12px 8px 4px;border-top:1px solid var(--border);font-size:13px;color:var(--muted)}.chat{display:flex;flex-direction:column;min-width:0}.messages{flex:1;overflow-y:auto;padding:32px 10%}.empty{color:var(--muted);text-align:center;margin-top:18vh}.empty h2{color:var(--text);font-weight:600}.empty p{line-height:1.8}.msg{margin-bottom:28px}.msg-role{font-size:12px;color:var(--muted);margin-bottom:6px}.msg-body{white-space:pre-wrap;line-height:1.8;font-size:15px}.msg.user .msg-body{background:var(--user);padding:12px 16px;border-radius:12px;display:inline-block}.composer{border-top:1px solid var(--border);padding:16px 10%;display:flex;gap:12px;align-items:flex-end}.composer-input{flex:1;resize:none;min-height:52px;max-height:200px;background:var(--panel-2);border:1px solid var(--border);border-radius:12px;padding:14px;color:var(--text);font-size:15px;line-height:1.6;font-family:inherit}.composer-input:focus{outline:none;border-color:var(--accent)}.btn-send{background:var(--accent);color:#fff;border:none;border-radius:12px;padding:14px 22px;font-size:15px}.btn-send:disabled{opacity:.5}.panel{background:var(--panel);border-left:1px solid var(--border);padding:20px;overflow-y:auto}.panel-section{margin-bottom:28px}.panel-label{font-size:12px;letter-spacing:.05em;color:var(--muted);margin-bottom:10px;text-transform:uppercase}.goal-box{background:var(--panel-2);border:1px solid var(--border);border-radius:10px;padding:12px;font-size:14px;line-height:1.7}.cond-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.cond-item{background:var(--panel-2);border:1px solid var(--border);border-radius:10px;padding:12px}.cond-head{display:flex;align-items:center;gap:8px;margin-bottom:6px}.cond-idx{width:20px;height:20px;border-radius:50%;background:var(--border);display:grid;place-items:center;font-size:12px}.cond-stmt{font-size:14px;line-height:1.6}.cond-meta{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.5}.badge{font-size:11px;padding:2px 8px;border-radius:999px}.st-unknown{background:#3a3f4b;color:#c7cdd6}.st-verifying{background:#3a3320;color:#f0c674}.st-confirmed{background:#1f3a28;color:#6cd28a}.st-refuted{background:#3a2024;color:#ff8b8b}@media(max-width:1080px){.app{grid-template-columns:220px 1fr}.panel{display:none}.messages,.composer{padding-left:5%;padding-right:5%}}