:root{--bg:#fbf7f2;--bg-soft:#f4ece2;--surface:#fff;--border:#ece2d6;--text:#2f2a24;--text-soft:#7a6f63;--primary:#e8783a;--primary-dark:#cf6429;--primary-soft:#fdeee3;--accent:#5b9279;--danger:#d6533f;--warn-bg:#fff4e0;--warn-text:#9a5a13;--shadow:0 4px 18px #78502814;--radius:14px;color:var(--text);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text)}button{cursor:pointer;border:none;border-radius:10px;padding:9px 16px;font-family:inherit;font-size:14px;transition:background .15s,opacity .15s,transform 50ms}button:active{transform:translateY(1px)}button:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff;font-weight:600}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-ghost{color:var(--text-soft);border:1px solid var(--border);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--bg-soft)}.btn-danger{color:var(--danger);background:0 0;border:1px solid #f0cfc8;padding:6px 12px;font-size:13px}.btn-danger:hover:not(:disabled){background:#fdeeeb}input,textarea,select{color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:10px;outline:none;width:100%;padding:10px 12px;font-family:inherit;font-size:14px;transition:border-color .15s,box-shadow .15s}input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}textarea{resize:vertical;min-height:70px}.label{color:var(--text-soft);margin-bottom:4px;font-size:13px;font-weight:500;display:block}.error-banner{color:var(--danger);background:#fdeeeb;border:1px solid #f0cfc8;border-radius:10px;margin:8px 0;padding:10px 14px;font-size:14px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.badge{background:var(--primary-soft);color:var(--primary-dark);border-radius:999px;padding:2px 9px;font-size:12px;font-weight:600;display:inline-block}.badge.tier-admin{color:#6a3fb0;background:#efe6fb}.badge.tier-pro{color:#2f6e54;background:#e2f0ea}.badge.tier-plus{color:#2f5e9e;background:#e3eefc}.muted{color:var(--text-soft)}.auth-wrap{background:radial-gradient(circle at 30% 20%, #fdeee3 0%, var(--bg) 55%);justify-content:center;align-items:center;min-height:100%;padding:24px;display:flex}.auth-card{width:100%;max-width:400px;padding:32px}.auth-logo{text-align:center;margin-bottom:20px}.auth-logo .leo{font-size:40px}.auth-logo h1{margin:6px 0 2px;font-size:24px}.auth-logo p{color:var(--text-soft);margin:0;font-size:14px}.tabs{background:var(--bg-soft);border-radius:10px;margin-bottom:20px;padding:4px;display:flex}.tabs button{color:var(--text-soft);background:0 0;border-radius:8px;flex:1;padding:8px;font-weight:600}.tabs button.active{background:var(--surface);color:var(--primary-dark);box-shadow:0 1px 4px #0000000f}.field{margin-bottom:14px}.shell{flex-direction:column;height:100%;display:flex}.topbar{background:var(--surface);border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:12px 20px;display:flex}.topbar .brand{align-items:center;gap:6px;font-size:18px;font-weight:700;display:flex}.topbar .spacer{flex:1}.topbar .user-info{color:var(--text-soft);align-items:center;gap:8px;font-size:14px;display:flex}.body{flex:1;min-height:0;display:flex}.sidenav{border-right:1px solid var(--border);background:var(--surface);flex-direction:column;gap:4px;width:180px;padding:12px;display:flex}.sidenav button{text-align:left;color:var(--text-soft);background:0 0;align-items:center;gap:10px;font-weight:500;display:flex}.sidenav button:hover{background:var(--bg-soft)}.sidenav button.active{background:var(--primary-soft);color:var(--primary-dark);font-weight:600}.view{flex:1;min-width:0;padding:20px;overflow-y:auto}.view-inner{max-width:820px;margin:0 auto}.view h2{margin:0 0 4px;font-size:20px}.view .subtitle{color:var(--text-soft);margin:0 0 18px;font-size:14px}.chat-layout{flex:1;min-height:0;display:flex}.chat-sessions{border-right:1px solid var(--border,#eee2d8);background:#00000004;flex-direction:column;flex-shrink:0;gap:10px;width:230px;padding:12px;display:flex}.chat-sessions .new-chat{width:100%}.session-list{flex-direction:column;flex:1;gap:4px;display:flex;overflow-y:auto}.session-empty{padding:8px 4px;font-size:13px}.session-item{cursor:pointer;border-radius:8px;align-items:center;gap:6px;padding:8px 10px;font-size:14px;display:flex}.session-item:hover{background:#0000000d}.session-item.active{background:var(--accent-soft,#ffe9d6);font-weight:600}.session-title{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.session-del{color:#b0a99f;cursor:pointer;opacity:0;background:0 0;border:none;border-radius:4px;padding:2px 4px;font-size:13px}.session-item:hover .session-del{opacity:1}.session-del:hover{color:#e2553b;background:#e2553b1f}@media (width<=640px){.chat-sessions{width:130px}}.chat-view{flex-direction:column;flex:1;width:100%;max-width:820px;min-height:0;margin:0 auto;padding:0;display:flex}.chat-header{align-items:center;padding:14px 20px 8px;display:flex}.chat-header h2{flex:1;margin:0;font-size:20px}.chat-scroll{flex-direction:column;flex:1;gap:14px;padding:12px 20px;display:flex;overflow-y:auto}.chat-empty{text-align:center;color:var(--text-soft);margin:auto}.chat-empty .leo{font-size:48px}.msg{flex-direction:column;max-width:78%;display:flex}.msg.user{align-self:flex-end;align-items:flex-end}.msg.assistant{align-self:flex-start;align-items:flex-start}.bubble{white-space:pre-wrap;word-break:break-word;border-radius:16px;padding:11px 15px;font-size:15px;line-height:1.5}.msg.user .bubble{background:var(--primary);color:#fff;border-bottom-right-radius:4px}.msg.assistant .bubble{background:var(--surface);border:1px solid var(--border);border-bottom-left-radius:4px}.msg-meta{gap:6px;margin-top:5px;display:flex}.meta-badge{background:var(--bg-soft);color:var(--text-soft);border-radius:999px;padding:1px 7px;font-size:11px;font-weight:500}.meta-badge.byok{color:#2f6e54;background:#e2f0ea}.meta-badge.platform{color:#2f5e9e;background:#e3eefc}.typing{align-items:center;gap:4px;display:inline-flex}.typing span{background:var(--text-soft);border-radius:50%;width:7px;height:7px;animation:1.2s infinite both blink}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}@keyframes blink{0%,80%,to{opacity:.3}40%{opacity:1}}.quota-notice{background:var(--warn-bg);color:var(--warn-text);text-align:center;border:1px solid #f3d9a8;border-radius:12px;align-self:center;max-width:90%;padding:10px 16px;font-size:14px}.chat-input{border-top:1px solid var(--border);background:var(--surface);align-items:flex-end;gap:10px;padding:12px 20px 16px;display:flex}.chat-input textarea{resize:none;flex:1;min-height:44px;max-height:160px}.row{flex-wrap:wrap;gap:12px;display:flex}.record-item{margin-bottom:12px;padding:14px 16px}.record-head{align-items:center;gap:8px;margin-bottom:6px;display:flex}.record-head .title{flex:1;font-weight:600}.record-body{white-space:pre-wrap;color:var(--text);font-size:14px;line-height:1.5}.record-tags{flex-wrap:wrap;gap:6px;margin-top:8px;display:flex}.tag{background:var(--bg-soft);color:var(--text-soft);border-radius:6px;padding:2px 8px;font-size:12px}.form-card{margin-bottom:20px;padding:18px}.form-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.form-grid .full{grid-column:1/-1}.usage-stat{flex-wrap:wrap;gap:24px;margin-bottom:18px;display:flex}.stat-box{min-width:130px;padding:14px 18px}.stat-box .v{font-size:24px;font-weight:700}.stat-box .k{color:var(--text-soft);font-size:13px}.progress{background:var(--bg-soft);border-radius:999px;height:12px;margin:8px 0 18px;overflow:hidden}.progress>div{background:linear-gradient(90deg, var(--primary), var(--primary-dark));border-radius:999px;height:100%;transition:width .3s}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;border-bottom:1px solid var(--border);padding:9px 12px}th{color:var(--text-soft);font-size:13px;font-weight:600}.section{margin-bottom:18px;padding:18px}.section h3{margin:0 0 12px;font-size:16px}.kv{border-bottom:1px solid var(--border);justify-content:space-between;padding:7px 0;font-size:14px;display:flex}.kv:last-child{border-bottom:none}.kv .k{color:var(--text-soft)}.key-item{border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:10px;padding:10px 0;display:flex}.key-item:last-child{border-bottom:none}.key-item .grow{flex:1;min-width:160px}.toggle{align-items:center;gap:8px;font-size:14px;display:flex}.toggle input{width:auto}.loading-center{text-align:center;color:var(--text-soft);padding:40px}@media (width<=640px){.sidenav{width:56px;padding:8px 6px}.sidenav .nav-label{display:none}.sidenav button{justify-content:center}.form-grid{grid-template-columns:1fr}.topbar .user-info .email{display:none}}