:root{--bg: #0a0d13;--bg-soft: #0f141d;--surface: #151c28;--surface-2: #1c2534;--surface-3: #243044;--border: rgba(255, 255, 255, .07);--border-strong: rgba(255, 255, 255, .12);--text: #e9eef8;--text-2: #b6c1d4;--muted: #7d8a9f;--accent: #6c8cff;--accent-2: #a06bff;--accent-soft: rgba(108, 140, 255, .16);--danger: #ff5d6c;--ok: #3ddc97;--warn: #ffb648;--radius-lg: 22px;--radius: 16px;--radius-sm: 11px;--shadow: 0 18px 48px rgba(0, 0, 0, .45);--font: -apple-system, "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif}[data-theme=light]{--bg: #f4f6fb;--bg-soft: #eef1f8;--surface: #ffffff;--surface-2: #f1f4fa;--surface-3: #e6ebf5;--border: rgba(16, 24, 40, .08);--border-strong: rgba(16, 24, 40, .14);--text: #131a26;--text-2: #3d4a5f;--muted: #6b7789;--accent-soft: rgba(108, 140, 255, .12);--shadow: 0 18px 40px rgba(24, 40, 74, .12)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#app{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.5;overscroll-behavior:none}button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}input,textarea{font:inherit;color:inherit}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:var(--surface-3);border-radius:8px}::-webkit-scrollbar-track{background:transparent}.shell{display:grid;grid-template-columns:72px 340px 1fr;height:100%;background:var(--bg)}@media (max-width: 900px){.shell{grid-template-columns:1fr}.shell[data-pane=chat] .rail,.shell[data-pane=chat] .list{display:none}.shell:not([data-pane=chat]) .chat{display:none}}@media (min-width: 901px) and (max-width: 1100px){.shell{grid-template-columns:72px 300px 1fr}}.rail{display:flex;flex-direction:column;align-items:center;gap:6px;padding:18px 0;background:var(--bg-soft);border-right:1px solid var(--border)}.rail .brand{width:40px;height:40px;border-radius:13px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:grid;place-items:center;font-weight:700;color:#fff;margin-bottom:14px;box-shadow:0 8px 20px #6c8cff59}.rail button{width:52px;height:52px;border-radius:15px;display:grid;place-items:center;color:var(--muted);position:relative;transition:background .18s ease,color .18s ease,transform .18s ease}.rail button:hover{background:var(--surface);color:var(--text-2)}.rail button.active{background:var(--accent-soft);color:var(--accent)}.rail button .badge{position:absolute;top:6px;right:6px;min-width:17px;height:17px;padding:0 4px;border-radius:9px;background:var(--danger);color:#fff;font-size:10px;line-height:17px;font-weight:700}.rail .spacer{flex:1}.rail .avatar-btn{margin-top:auto}.list{display:flex;flex-direction:column;background:var(--bg);border-right:1px solid var(--border);min-width:0}.list-header{padding:20px 20px 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.row2{display:flex;justify-content:space-between;gap:8px;align-items:center;margin-top:2px}.conv .preview{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conv .unread{min-width:19px;height:19px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-size:11px;font-weight:700;display:grid;place-items:center;padding:0 5px}.avatar{width:46px;height:46px;border-radius:16px;display:grid;place-items:center;color:#fff;font-weight:650;font-size:17px;flex-shrink:0;position:relative}.avatar.sm{width:34px;height:34px;border-radius:12px;font-size:13px}.avatar .dot{position:absolute;right:-1px;bottom:-1px;width:12px;height:12px;border-radius:50%;background:var(--muted);border:2.5px solid var(--bg)}.avatar .dot.on{background:var(--ok)}.chat{display:flex;flex-direction:column;min-width:0;background:var(--bg-soft);position:relative}.chat-empty{flex:1;display:grid;place-items:center;color:var(--muted);text-align:center;padding:40px}.chat-empty .logo{width:84px;height:84px;border-radius:26px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:grid;place-items:center;margin:0 auto 18px;font-size:34px;box-shadow:0 20px 50px #6c8cff4d}.chat-header{height:68px;padding:0 20px;display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--border);background:color-mix(in srgb,var(--bg-soft) 88%,transparent);backdrop-filter:blur(18px);position:relative;z-index:5}.chat-header .title{font-weight:650;font-size:16px}.chat-header .sub{font-size:12px;color:var(--muted)}.chat-header .actions{margin-left:auto;display:flex;gap:6px}.icon-btn{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;color:var(--text-2);transition:background .15s ease,color .15s ease}.icon-btn:hover{background:var(--surface-2);color:var(--text)}.icon-btn.back{margin-left:-8px;display:none}@media (max-width: 900px){.icon-btn.back{display:grid}}.messages{flex:1;overflow-y:auto;padding:18px 22px 8px;display:flex;flex-direction:column;gap:3px}.day-divider{align-self:center;margin:14px 0 10px;font-size:11px;color:var(--muted);background:var(--surface);padding:3px 12px;border-radius:20px;border:1px solid var(--border)}.msg{display:flex;gap:9px;max-width:min(76%,620px);margin:3px 0;animation:pop .18s ease}@keyframes pop{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.msg.mine{align-self:flex-end;flex-direction:row-reverse}.msg .bubble{padding:10px 14px;border-radius:18px;background:var(--surface-2);border:1px solid var(--border);word-break:break-word;white-space:pre-wrap;position:relative}.msg.mine .bubble{background:linear-gradient(135deg,var(--accent),var(--accent-2));border-color:transparent;color:#fff}.msg .sender{font-size:11px;color:var(--muted);margin:0 0 3px 4px}.msg .foot{display:flex;align-items:center;gap:6px;font-size:10.5px;color:var(--muted);margin-top:4px;justify-content:flex-end}.msg.mine .foot{color:#ffffffb8}.msg .burn-tag{display:inline-flex;align-items:center;gap:3px;font-size:11px;color:var(--warn);background:#ffb6481f;border-radius:8px;padding:1px 6px;margin-bottom:6px}.msg .burned{font-style:italic;color:var(--muted);display:flex;align-items:center;gap:6px}.msg .pending{opacity:.6}.msg .failed{color:var(--danger)}.typing{padding:2px 22px 8px;height:22px;font-size:12px;color:var(--muted)}.composer{padding:10px 18px calc(14px + env(safe-area-inset-bottom));border-top:1px solid var(--border);background:var(--bg-soft)}.composer-inner{display:flex;align-items:flex-end;gap:8px;background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:7px 7px 7px 14px}.composer textarea{flex:1;border:0;outline:none;background:none;resize:none;max-height:130px;padding:7px 0;line-height:1.45}.composer textarea::placeholder{color:var(--muted)}.burn-toggle{height:34px;padding:0 11px;border-radius:12px;font-size:12.5px;color:var(--muted);display:inline-flex;align-items:center;gap:4px;white-space:nowrap;transition:all .15s ease}.burn-toggle.on{background:#ffb64824;color:var(--warn)}.send-btn{width:40px;height:40px;border-radius:14px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;display:grid;place-items:center;transition:transform .12s ease,opacity .15s ease}.send-btn:disabled{opacity:.4}.send-btn:active{transform:scale(.94)}.auth{height:100%;display:grid;place-items:center;padding:24px;background:radial-gradient(900px 500px at 15% -10%,rgba(108,140,255,.22),transparent 60%),radial-gradient(700px 500px at 100% 110%,rgba(160,107,255,.18),transparent 55%),var(--bg)}.auth-card{width:min(420px,100%);background:color-mix(in srgb,var(--surface) 92%,transparent);border:1px solid var(--border);border-radius:26px;padding:30px 26px;box-shadow:var(--shadow);backdrop-filter:blur(20px)}.auth-card .logo{width:58px;height:58px;border-radius:19px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:grid;place-items:center;font-size:24px;font-weight:700;color:#fff;margin-bottom:16px;box-shadow:0 14px 34px #6c8cff59}.auth-card h1{margin:0 0 6px;font-size:24px}.auth-card p.sub{margin:0 0 22px;color:var(--muted);font-size:13.5px}.field{margin-bottom:14px}.field label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:6px}.field input{width:100%;background:var(--bg-soft);border:1px solid var(--border);border-radius:13px;padding:12px 14px;outline:none;transition:border .15s ease,background .15s ease}.field 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12px;font-size:13px;margin-bottom:14px}.sheet-backdrop{position:fixed;inset:0;background:#04070c9e;backdrop-filter:blur(6px);display:grid;place-items:center;padding:20px;z-index:60}.sheet{width:min(440px,100%);background:var(--surface);border:1px solid var(--border-strong);border-radius:24px;padding:22px;box-shadow:var(--shadow);max-height:84vh;display:flex;flex-direction:column}.sheet h3{margin:0 0 4px;font-size:18px}.sheet .hint{color:var(--muted);font-size:13px;margin:0 0 16px}.user-row{display:flex;align-items:center;gap:12px;padding:9px 10px;border-radius:14px;cursor:pointer}.user-row:hover{background:var(--surface-2)}.user-row.selected{background:var(--accent-soft)}.user-row .name{font-weight:600;font-size:14px}.user-row .sub{font-size:12px;color:var(--muted)}.sheet-actions{display:flex;gap:10px;margin-top:16px}.sheet-actions>*{flex:1}.call-screen{position:fixed;inset:0;z-index:80;background:radial-gradient(900px 600px at 50% -10%,rgba(108,140,255,.25),transparent 60%),#05070b;display:flex;flex-direction:column;color:#fff}.call-top{padding:26px 24px 10px;text-align:center}.call-top .who{font-size:20px;font-weight:650}.call-top .status{color:#ffffff9e;font-size:13px;margin-top:6px;letter-spacing:.4px}.call-grid{flex:1;display:grid;gap:10px;padding:14px;align-content:center;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.call-tile{position:relative;border-radius:20px;overflow:hidden;background:#11151d;border:1px solid rgba(255,255,255,.09);aspect-ratio:4 / 3;display:grid;place-items:center}.call-tile video{width:100%;height:100%;object-fit:cover;background:#0b0e14}.call-tile.audio-only{aspect-ratio:auto;min-height:160px}.call-tile .tile-name{position:absolute;left:12px;bottom:10px;font-size:12.5px;background:#00000073;padding:3px 9px;border-radius:9px}.call-tile .avatar-big{width:84px;height:84px;border-radius:28px;display:grid;place-items:center;font-size:30px;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--accent-2))}.call-controls{padding:18px 24px calc(30px + env(safe-area-inset-bottom));display:flex;justify-content:center;gap:14px}.call-controls button{width:60px;height:60px;border-radius:22px;display:grid;place-items:center;background:#ffffff17;color:#fff;transition:background .15s ease,transform .12s ease}.call-controls button.off{background:#ffffff29;color:#ffffff8c}.call-controls button.danger{background:var(--danger)}.call-controls button.ok{background:var(--ok)}.call-controls button:active{transform:scale(.95)}.page{padding:22px;overflow-y:auto;height:100%}.page h2{margin:0 0 4px;font-size:20px}.page .hint{color:var(--muted);font-size:13px;margin:0 0 18px}.code-card{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:14px;background:var(--surface);border:1px solid var(--border);margin-bottom:8px}.code-card .code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:16px;letter-spacing:2px;font-weight:600}.code-card .state{margin-left:auto;font-size:12px;color:var(--muted)}.code-card.used{opacity:.55}.copy-btn{font-size:12px;color:var(--accent);padding:5px 10px;border-radius:9px;background:var(--accent-soft)}.toasts{position:fixed;left:50%;bottom:26px;transform:translate(-50%);display:flex;flex-direction:column;gap:8px;z-index:100;pointer-events:none}.toast{padding:10px 16px;border-radius:14px;background:var(--surface-3);border:1px solid var(--border-strong);box-shadow:var(--shadow);font-size:13.5px}.toast.error{background:#ff5d6c29;border-color:#ff5d6c59;color:#ffb3ba}.toast.success{background:#3ddc9724;border-color:#3ddc974d;color:#9df3cf}.settings-block{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:16px;margin-bottom:14px}.settings-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 0}.settings-row+.settings-row{border-top:1px solid var(--border)}.swatches{display:flex;gap:8px;flex-wrap:wrap}.swatch{width:30px;height:30px;border-radius:10px;border:2px solid transparent}.swatch.active{border-color:#fff;box-shadow:0 0 0 2px var(--accent)}.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:6px;background:var(--muted)}.status-dot.on{background:var(--ok)}@keyframes burn{0%{transform:scaleX(1)}to{transform:scaleX(0)}}@media (prefers-reduced-motion: reduce){*{animation:none!important;transition:none!important}}