:root{--bg: #0f1115;--bg-soft: #151922;--bg-card: #1b212c;--bg-hover: #232b38;--border: #2a3242;--text: #e7eaf0;--text-dim: #96a0b0;--accent: #4f8cff;--accent-soft: rgba(79, 140, 255, .16);--danger: #ff6b6b;--danger-soft: rgba(255, 107, 107, .14);--ok: #3ecf8e;--warn: #f5b942;--radius: 10px;--shadow: 0 8px 30px 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:system-ui,-apple-system,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{line-height:1.3}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;border-radius:8px;border:1px solid var(--border);background:var(--bg-card);color:var(--text);font-size:14px;cursor:pointer;transition:background .15s,border-color .15s;white-space:nowrap}.btn:hover:not(:disabled){background:var(--bg-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover:not(:disabled){background:#3d7bf0}.btn.danger{background:var(--danger-soft);border-color:var(--danger);color:var(--danger)}.btn.ghost{background:transparent;border-color:transparent;color:var(--text-dim)}.btn.ghost:hover:not(:disabled){color:var(--text);background:var(--bg-hover)}.btn.sm{padding:4px 10px;font-size:13px}.btn.block{width:100%}input,select,textarea{background:var(--bg-soft);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:9px 12px;font-size:14px;font-family:inherit;outline:none;transition:border-color .15s}input:focus,select:focus,textarea:focus{border-color:var(--accent)}input::placeholder,textarea::placeholder{color:var(--text-dim);opacity:.7}textarea{resize:none}label.field{display:block;margin-bottom:14px}label.field>span{display:block;font-size:13px;color:var(--text-dim);margin-bottom:6px}label.field input,label.field select{width:100%}.checkbox-line{display:flex;align-items:center;gap:8px;font-size:14px;cursor:pointer}.checkbox-line input{width:16px;height:16px;accent-color:var(--accent)}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:18px}.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;background:var(--accent-soft);color:var(--accent);white-space:nowrap}.badge.ok{background:#3ecf8e24;color:var(--ok)}.badge.warn{background:#f5b94224;color:var(--warn)}.badge.danger{background:var(--danger-soft);color:var(--danger)}.badge.dim{background:var(--bg-hover);color:var(--text-dim)}.error-text{color:var(--danger);font-size:13px;margin-top:8px;min-height:1em}.empty-state{text-align:center;color:var(--text-dim);padding:40px 16px}.empty-state.sm{padding:16px 8px;font-size:13px}.toast{position:fixed;bottom:28px;left:50%;transform:translate(-50%);background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:10px 20px;font-size:14px;box-shadow:var(--shadow);z-index:100}.toast.err{border-color:var(--danger);color:var(--danger)}.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius)}table.table{width:100%;border-collapse:collapse;font-size:14px}table.table th,table.table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:middle}table.table th{color:var(--text-dim);font-weight:500;font-size:13px;background:var(--bg-soft);white-space:nowrap}table.table tr:last-child td{border-bottom:none}table.table td .btn{margin-right:6px}.sub-row td{background:var(--bg-soft);padding:14px 18px}.auth-page{height:100%;display:flex;align-items:center;justify-content:center;padding:20px;background:radial-gradient(1000px 500px at 80% -10%,rgba(79,140,255,.12),transparent),var(--bg)}.auth-card{width:100%;max-width:400px;background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:32px 28px;box-shadow:var(--shadow)}.auth-card h1{margin:0 0 4px;font-size:24px;text-align:center}.auth-card .sub{text-align:center;color:var(--text-dim);font-size:13px;margin-bottom:24px}.auth-card .btn.primary{margin-top:6px;padding:10px}.auth-links{margin-top:18px;text-align:center;font-size:13px;color:var(--text-dim)}.chat-layout{display:flex;height:100%;overflow:hidden}.sidebar{width:264px;flex-shrink:0;display:flex;flex-direction:column;background:var(--bg-soft);border-right:1px solid var(--border)}.sidebar-head{padding:14px;border-bottom:1px solid var(--border)}.conv-list{flex:1;overflow-y:auto;padding:8px}.conv-item{position:relative;padding:10px 12px;border-radius:8px;cursor:pointer;margin-bottom:4px;border:1px solid transparent}.conv-item:hover{background:var(--bg-hover)}.conv-item.active{background:var(--accent-soft);border-color:#4f8cff59}.conv-title{font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding-right:44px}.conv-meta{font-size:12px;color:var(--text-dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding-right:44px}.conv-actions{position:absolute;top:8px;right:6px;display:none;gap:2px}.conv-item:hover .conv-actions{display:flex}.conv-actions button{background:transparent;border:none;color:var(--text-dim);cursor:pointer;font-size:13px;padding:2px 4px;border-radius:4px}.conv-actions button:hover{color:var(--text);background:var(--bg-card)}.sidebar-foot{padding:12px 14px;border-top:1px solid var(--border);display:flex;align-items:center;gap:10px;font-size:13px}.sidebar-foot .username{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-dim)}.chat-main{flex:1;display:flex;flex-direction:column;min-width:0}.chat-head{display:flex;align-items:center;gap:10px;padding:10px 16px;border-bottom:1px solid var(--border);background:var(--bg-soft)}.chat-head select{max-width:260px}.chat-head .spacer{flex:1}.menu-btn{display:none}.msg-list{flex:1;overflow-y:auto;padding:20px 0}.msg-inner{max-width:820px;margin:0 auto;padding:0 20px}.msg{margin-bottom:18px;display:flex}.msg.user{justify-content:flex-end}.msg.assistant{justify-content:flex-start}.msg .bubble{max-width:85%;padding:10px 14px;border-radius:12px;font-size:14.5px;word-break:break-word;white-space:pre-wrap}.msg.user .bubble{background:var(--accent);color:#fff;border-bottom-right-radius:4px;white-space:pre-wrap}.msg.assistant .bubble{background:var(--bg-card);border:1px solid var(--border);border-bottom-left-radius:4px;width:100%;max-width:100%}.msg.system{justify-content:center}.msg.system .sys-text{color:var(--danger);font-size:13px;background:var(--danger-soft);border:1px solid rgba(255,107,107,.35);padding:6px 14px;border-radius:8px}.typing{color:var(--text-dim);font-size:13px;padding:0 20px;max-width:820px;margin:-8px auto 14px}.typing:after{content:"▍";animation:blink 1s step-start infinite;color:var(--accent)}@keyframes blink{50%{opacity:0}}.composer{border-top:1px solid var(--border);background:var(--bg-soft);padding:12px 16px}.composer-inner{max-width:820px;margin:0 auto;display:flex;gap:10px;align-items:flex-end}.composer textarea{flex:1;max-height:160px;line-height:1.5}.composer .hint{max-width:820px;margin:6px auto 0;font-size:12px;color:var(--text-dim);opacity:.8}.md{white-space:normal}.md p{margin:0 0 10px}.md p:last-child{margin-bottom:0}.md pre{background:#0c0e13;border:1px solid var(--border);border-radius:8px;padding:12px;overflow-x:auto;font-size:13px;margin:10px 0}.md code{font-family:ui-monospace,Cascadia Code,Consolas,monospace;font-size:.92em;background:var(--bg-hover);padding:1px 5px;border-radius:4px}.md pre code{background:none;padding:0}.md blockquote{margin:8px 0;padding:4px 12px;border-left:3px solid var(--accent);color:var(--text-dim);background:var(--bg-soft);border-radius:0 6px 6px 0}.md ul,.md ol{margin:6px 0;padding-left:22px}.md table{border-collapse:collapse;margin:10px 0;font-size:13.5px}.md table th,.md table td{border:1px solid var(--border);padding:6px 10px}.md h1,.md h2,.md h3,.md h4{margin:14px 0 8px}.md a{color:var(--accent)}.md hr{border:none;border-top:1px solid var(--border);margin:12px 0}.admin-page{min-height:100%;display:flex;flex-direction:column}.admin-head{display:flex;align-items:center;gap:12px;padding:14px 24px;border-bottom:1px solid var(--border);background:var(--bg-soft)}.admin-head h1{font-size:19px;margin:0;flex:1}.admin-tabs{display:flex;gap:4px;padding:10px 24px 0;border-bottom:1px solid var(--border)}.admin-tabs button{background:transparent;border:none;border-bottom:2px solid transparent;color:var(--text-dim);padding:9px 16px;font-size:14px;cursor:pointer}.admin-tabs button.active{color:var(--accent);border-bottom-color:var(--accent)}.admin-body{flex:1;padding:22px 24px;max-width:1060px;width:100%;margin:0 auto}.panel-title{display:flex;align-items:center;gap:10px;margin:0 0 14px}.panel-title h2{font-size:17px;margin:0;flex:1}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:20px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.stat-card .num{font-size:26px;font-weight:600;color:var(--accent)}.stat-card .lbl{font-size:13px;color:var(--text-dim)}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0 14px;align-items:end}.form-actions{display:flex;gap:8px;margin-top:4px}.model-sub{border:1px solid var(--border);border-radius:8px;padding:12px;background:var(--bg-card)}.model-sub h4{margin:0 0 10px;font-size:14px}.chip-row{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}.chip{font-size:12px;padding:4px 10px;border-radius:999px;border:1px dashed var(--accent);color:var(--accent);background:transparent;cursor:pointer}.chip:hover{background:var(--accent-soft)}.week-list{display:flex;gap:8px;align-items:flex-end;height:120px;padding:10px 4px 0}.week-bar{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;height:100%;justify-content:flex-end}.week-bar .bar{width:70%;min-height:3px;background:var(--accent);border-radius:4px 4px 0 0;opacity:.85}.week-bar .day,.week-bar .val{font-size:11px;color:var(--text-dim)}@media (max-width: 720px){.menu-btn{display:inline-flex}.sidebar{position:fixed;inset:0 auto 0 0;z-index:50;transform:translate(-100%);transition:transform .2s ease;box-shadow:var(--shadow)}.sidebar.open{transform:translate(0)}.sidebar-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:40}.msg .bubble{max-width:95%}.admin-body{padding:16px 12px}}.auth-tabs{display:flex;gap:4px;margin-bottom:18px;border-bottom:1px solid var(--border)}.auth-tabs button{flex:1;background:transparent;border:none;border-bottom:2px solid transparent;color:var(--text-dim);padding:9px 16px;font-size:14px;cursor:pointer}.auth-tabs button.active{color:var(--accent);border-bottom-color:var(--accent)}.sms-row{display:flex;gap:8px}.sms-row input{flex:1;min-width:0}.sms-row .btn{flex-shrink:0}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;z-index:90;display:flex;align-items:center;justify-content:center;padding:20px}.modal{width:100%;max-width:380px;background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:24px;box-shadow:var(--shadow)}.modal h3{margin:0 0 14px;font-size:18px}.modal .conv-meta{margin:-6px 0 14px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}