:root{--bg:#f3f5f8;--panel:#fff;--line:#e5e8ee;--text:#18202a;--muted:#748091;--primary:#1677ff;--primary2:#0e63d3;--danger:#dc3545;--green:#1a9b62;--shadow:0 8px 30px rgba(20,35,55,.08)}*{box-sizing:border-box}html,body{margin:0;height:100%;font-family:Inter,Arial,sans-serif;color:var(--text);background:var(--bg)}button,input,textarea,select{font:inherit}button{cursor:pointer}.hidden{display:none!important}.topbar{height:64px;background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 20px}.logo{display:flex;align-items:center;gap:10px}.logo span,.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--primary),#35b9ff);color:#fff;display:grid;place-items:center;font-weight:800}.top-actions{display:flex;align-items:center;gap:12px}.operator{font-weight:700}.ghost,.icon-btn{border:1px solid var(--line);background:#fff;border-radius:9px;padding:9px 12px;color:var(--text);text-decoration:none}.primary{border:0;background:var(--primary);color:#fff;border-radius:10px;padding:11px 18px;font-weight:700}.primary:hover{background:var(--primary2)}.danger-outline{border:1px solid #f0b6bc;background:#fff;color:var(--danger);border-radius:9px;padding:9px 12px}.workspace{height:calc(100vh - 64px);display:grid;grid-template-columns:350px 1fr}.sidebar{background:#fff;border-right:1px solid var(--line);min-width:0;display:flex;flex-direction:column}.filters{padding:14px;border-bottom:1px solid var(--line)}.filters input{width:100%;padding:11px;border:1px solid var(--line);border-radius:10px}.status-tabs{display:flex;gap:5px;margin-top:10px;overflow:auto}.status-tabs button{border:0;background:#eef2f7;padding:7px 10px;border-radius:20px;white-space:nowrap}.status-tabs button.active{background:#dbeaff;color:#075dc9}.mine{display:block;margin-top:10px;color:var(--muted);font-size:13px}.conversation-list{overflow:auto}.conversation{padding:14px;border-bottom:1px solid #edf0f4;display:grid;grid-template-columns:44px 1fr auto;gap:10px;cursor:pointer}.conversation:hover,.conversation.active{background:#f0f7ff}.avatar{width:44px;height:44px;border-radius:50%;background:#e7effa;display:grid;place-items:center;font-weight:800;color:#376391}.conv-name{font-weight:700}.conv-preview{color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:210px;margin-top:4px}.conv-time{color:var(--muted);font-size:11px}.badge{background:var(--primary);color:#fff;border-radius:20px;min-width:21px;height:21px;padding:0 6px;display:grid;place-items:center;font-size:11px;margin-top:7px}.chat{min-width:0}.empty{height:100%;display:grid;place-content:center;text-align:center;color:var(--muted)}.empty>div{font-size:58px}.chat-view{height:100%;display:grid;grid-template-rows:auto 1fr auto;background:#eef2f6}.chat-header{background:#fff;border-bottom:1px solid var(--line);padding:14px 18px;display:flex;justify-content:space-between;align-items:center;gap:14px}.chat-header h2{margin:0 0 4px}.muted{color:var(--muted);font-size:13px}.chat-controls{display:flex;gap:8px;flex-wrap:wrap}.chat-controls select{border:1px solid var(--line);border-radius:9px;padding:8px}.messages{overflow:auto;padding:22px;display:flex;flex-direction:column;gap:10px}.bubble{max-width:min(72%,720px);padding:10px 13px;border-radius:15px;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.06);align-self:flex-start}.bubble.out{background:#d9fdd3;align-self:flex-end}.bubble .who{font-size:11px;color:var(--muted);margin-bottom:5px}.bubble .time{font-size:10px;color:var(--muted);text-align:right;margin-top:5px}.bubble img,.bubble video{max-width:360px;max-height:320px;border-radius:10px;display:block}.bubble audio{max-width:300px}.file-link{display:inline-flex;gap:8px;align-items:center;padding:9px;background:#f4f7fa;border-radius:8px;color:var(--text);text-decoration:none}.composer{background:#fff;border-top:1px solid var(--line);padding:12px}.quick-row,.compose-row{display:flex;gap:8px}.quick-row{margin-bottom:8px}.quick-row select{flex:1;border:1px solid var(--line);border-radius:9px;padding:8px}.compose-row textarea{flex:1;resize:none;border:1px solid var(--line);border-radius:12px;padding:11px;min-height:48px}.attach{width:45px;height:45px;border-radius:10px;background:#eef2f7;display:grid;place-items:center;font-size:20px}.attach input{display:none}.file-preview{background:#f2f7ff;padding:8px 12px;border-radius:8px;margin-bottom:8px}.login-body{display:grid;place-items:center;background:linear-gradient(135deg,#eef6ff,#f7f8fb)}.login-card{width:min(390px,92vw);background:#fff;padding:32px;border-radius:18px;box-shadow:var(--shadow)}.login-card h1{margin:15px 0 5px}.login-card p{color:var(--muted)}.login-card label{display:block;font-weight:700;margin-top:14px}.login-card input{width:100%;padding:12px;margin-top:6px;border:1px solid var(--line);border-radius:10px}.login-card .primary{width:100%;margin-top:20px}.alert{padding:10px;border-radius:8px}.alert.error{background:#fff0f1;color:#b42332}.modal{width:min(600px,92vw);border:0;border-radius:15px;padding:0}.modal header{display:flex;justify-content:space-between;padding:15px;border-bottom:1px solid var(--line)}.modal header h3{margin:0}.modal header button{border:0;background:none}.modal textarea{width:100%;min-height:90px;padding:10px;border:1px solid var(--line);border-radius:8px;margin:12px 0}.notes-list{max-height:350px;overflow:auto}.note{padding:10px;border-bottom:1px solid var(--line)}.note small{color:var(--muted)}.settings-page{min-height:100vh}.settings-grid{padding:24px;display:grid;grid-template-columns:1fr 1fr;gap:20px}.settings-card{background:#fff;padding:20px;border-radius:14px;box-shadow:var(--shadow)}.stack{display:grid;gap:9px}.stack input,.stack textarea,.stack select{padding:10px;border:1px solid var(--line);border-radius:8px}.admin-row{display:grid;grid-template-columns:1fr auto;gap:10px;padding:11px 0;border-bottom:1px solid var(--line)}.admin-row small{color:var(--muted)}#mobileList{display:none}@media(max-width:800px){.workspace{grid-template-columns:1fr}.sidebar{position:fixed;z-index:5;top:64px;bottom:0;left:0;width:min(360px,92vw);transform:translateX(-102%);transition:.2s;box-shadow:var(--shadow)}.sidebar.open{transform:none}.chat-header{align-items:flex-start;flex-direction:column}.chat-controls{width:100%}.bubble{max-width:88%}.top-actions .operator{display:none}#mobileList{display:block}.settings-grid{grid-template-columns:1fr;padding:12px}}

.answer-state{margin-top:6px;display:inline-flex;align-items:center;gap:6px;background:#eef6ff;color:#0c62c7;border-radius:999px;padding:5px 9px;font-size:12px;font-weight:700}.answered-mini{font-size:11px;color:#1a9b62;margin-top:4px}.conv-main{min-width:0}.topbar{position:relative;z-index:20}.messages{background-image:radial-gradient(circle at 20% 20%,rgba(22,119,255,.05),transparent 35%),radial-gradient(circle at 80% 80%,rgba(26,155,98,.05),transparent 30%)}
@media(max-width:800px){body{overscroll-behavior:none}.topbar{height:58px;padding:0 10px;padding-top:env(safe-area-inset-top)}.workspace{height:calc(100dvh - 58px - env(safe-area-inset-top))}.logo b{font-size:15px}.top-actions{gap:5px}.top-actions .ghost{padding:8px;font-size:0}.top-actions .ghost::first-letter{font-size:18px}.sidebar{top:calc(58px + env(safe-area-inset-top));width:100%;max-width:none}.chat-header{padding:10px 12px}.chat-header h2{font-size:17px}.chat-controls{display:grid;grid-template-columns:1fr 1fr}.chat-controls .danger-outline{grid-column:1/-1}.messages{padding:12px 9px}.bubble{max-width:91%;font-size:15px}.bubble img,.bubble video{max-width:100%;max-height:48vh}.composer{padding:8px 8px calc(8px + env(safe-area-inset-bottom))}.quick-row{overflow:auto}.quick-row select{min-width:190px}.compose-row{align-items:flex-end}.compose-row textarea{min-height:45px;max-height:120px}.primary{padding:12px 14px}.answer-state{font-size:11px}}