:root{color-scheme:light;--bg: #ffffff;--surface: #f4f5f7;--line: #e6e6e6;--text: #111111;--muted: #8a8a8a;--accent: #3478f6;--mine: #3478f6;--theirs: #f1f2f4;--danger: #d94841;--safe-top: env(safe-area-inset-top);--safe-bottom: env(safe-area-inset-bottom)}*{box-sizing:border-box}html,body,#root{margin:0;height:100%;overflow:hidden;background:var(--bg);color:var(--text);font-family:PingFang SC,SF Pro Text,system-ui,sans-serif;-webkit-tap-highlight-color:transparent}button,input,textarea{font:inherit;color:inherit}button{border:0;background:none}.app{min-height:100%;display:flex;flex-direction:column}.screen{flex:1;display:flex;flex-direction:column;padding:calc(24px + var(--safe-top)) 22px calc(24px + var(--safe-bottom))}.lock,.pair{justify-content:center;align-items:center;text-align:center;gap:18px;background:#fff;color:#111}.lock{height:100%;height:100dvh;min-height:0;padding:0;position:relative}.lock h1,.pair h1{font-size:28px;font-weight:560;letter-spacing:.08em;margin:0}.lock p,.pair p{color:var(--muted);margin:0}.mark{width:88px;height:88px;border-radius:28px;background:#e8f1ff;color:#3478f6;display:grid;place-items:center;font-size:36px}.btn{width:100%;max-width:280px;height:48px;border-radius:14px;background:#3478f6;color:#fff;font-weight:600}.btn:disabled{opacity:.65}.btn.ghost{background:transparent;color:#3478f6}.field{width:100%;max-width:280px;background:#f4f5f7;border:1px solid #e6e6e6;border-radius:12px;padding:12px 14px;color:#111}.field::placeholder{color:#9aa0a6}.field:focus{outline:1px solid #3478f6}.err{color:var(--danger);min-height:1.2em;font-size:14px}.faceid-btn{width:96px;height:96px;border-radius:28px;background:#e8f1ff;color:#3478f6;display:grid;place-items:center}.faceid-btn:disabled{opacity:.55}.lock .err{position:absolute;left:22px;right:22px;top:calc(50% + 64px);min-height:0}.chat,.settings{color:#111;background:#fff}.chat .err,.settings .err{color:#d94841}.chat{padding:0;height:100%;height:100dvh;min-height:0;overflow:hidden}.topbar{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:calc(10px + var(--safe-top)) 16px 10px;border-bottom:1px solid #ececec;background:#fff;color:#111}.topbar-title{margin:0;height:36px;display:flex;align-items:center;justify-content:center;gap:6px;min-width:0}.topbar-name{font-size:17px;font-weight:600;line-height:1;white-space:nowrap}.presence-dot{width:8px;height:8px;border-radius:50%;flex:none;align-self:center;font-size:0;line-height:0;font-style:normal;min-height:0;transform:translateY(2px)}.presence-dot.online{background:#22c55e}.presence-dot.offline{background:#d1d5db}.icon-btn:disabled{opacity:.35}.icon-btn{width:36px;height:36px;border-radius:10px;color:#6b7280;display:grid;place-items:center;position:relative}.list{flex:1;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:12px 14px 8px}.list-inner{display:flex;flex-direction:column;gap:10px}.bubble-row{display:flex}.bubble-row.mine{justify-content:flex-end}.bubble-row.theirs{justify-content:flex-start}.bubble-row.system{justify-content:center}.bubble{max-width:78%;padding:10px 12px;border-radius:16px;line-height:1.45;word-break:break-word;position:relative;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}.mine .bubble{background:#3478f6;color:#fff;border-bottom-right-radius:6px}.theirs .bubble{background:#f1f2f4;color:#111;border-bottom-left-radius:6px}.system .bubble{background:transparent;color:#8a8a8a;font-size:12px;max-width:90%}.bubble img,.bubble video{display:block;max-width:220px;border-radius:10px}.bubble img{cursor:zoom-in}.bubble video{width:100%;background:#000}.voice{display:flex;align-items:center;gap:8px;min-width:160px}.voice-play{width:32px;height:32px;border-radius:16px;flex-shrink:0;display:grid;place-items:center;background:#0000001f;color:inherit}.mine .voice-play{background:#ffffff38}.voice-bar{flex:1;height:4px;border-radius:2px;background:#00000029;overflow:hidden}.mine .voice-bar{background:#ffffff47}.voice-progress{height:100%;background:currentColor;opacity:.85}.voice-dur{font-size:12px;font-variant-numeric:tabular-nums;min-width:2.4em;text-align:right}.voice audio{display:none}.meta{margin-top:4px;font-size:11px;text-align:right}.mine .meta{color:#ffffffb8}.theirs .meta{color:#8a8a8a}.sealed{min-width:140px;text-align:center;color:inherit}.composer{flex-shrink:0;display:flex;flex-wrap:wrap;gap:4px;align-items:flex-end;padding:8px 10px calc(10px + var(--safe-bottom));border-top:1px solid #ececec;background:#fff}.composer .icon-btn,.composer .toggle{width:36px;height:36px;flex:0 0 36px}.attach-panel{flex:1 0 100%;display:grid;grid-template-columns:repeat(3,1fr);gap:10px;padding:14px 10px 16px;background:#f4f5f7;border:1px solid #e6e6e6;border-radius:12px}.attach-panel button{display:flex;flex-direction:column;align-items:center;gap:8px;padding:12px 8px;border-radius:12px;background:#fff;color:#111;font-size:13px}.attach-panel button:active{background:#eef1f4}.attach-panel button:disabled{opacity:.45}.attach-ico{width:48px;height:48px;border-radius:14px;background:#e8f1ff;color:#3478f6;display:grid;place-items:center}.rec-live{flex:1;min-width:0;display:flex;align-items:center;gap:8px;min-height:36px;padding:0 10px;background:#f4f5f7;border-radius:12px;color:#111;font-variant-numeric:tabular-nums}.rec-dot{width:8px;height:8px;border-radius:50%;background:#e5484d;animation:rec-pulse 1s ease-in-out infinite}@keyframes rec-pulse{50%{opacity:.35}}.composer .err{flex:1 0 100%;min-height:0;margin:0}.day-sep{text-align:center;font-size:12px;color:#8a8a8a;margin:6px 0 2px}.reply-quote{display:block;width:100%;margin:0 0 6px;padding:6px 8px;border-left:3px solid currentColor;border-radius:0 8px 8px 0;background:#00000014;color:inherit;text-align:left;font-size:12px;line-height:1.4;opacity:.88}.mine .reply-quote{background:#ffffff29}.composer-banner{flex:1 0 100%;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 10px;border-radius:12px;background:#f4f5f7}.composer-banner-title{font-size:12px;color:#3478f6;font-weight:600}.composer-banner-excerpt{margin-top:2px;font-size:13px;color:#6b7280;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.composer-banner button{width:28px;height:28px;border-radius:14px;color:#6b7280;font-size:20px;line-height:1}.emoji-panel{flex:1 0 100%;display:flex;flex-direction:column;height:228px;background:#f4f5f7;border:1px solid #e6e6e6;border-radius:12px;overflow:hidden}.emoji-cats{display:flex;flex-shrink:0;gap:2px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding:6px 6px 4px;border-bottom:1px solid #e6e6e6;scrollbar-width:none}.emoji-cats::-webkit-scrollbar{display:none}.emoji-cats button{flex:0 0 auto;width:36px;height:32px;border-radius:8px;font-size:18px;line-height:1}.emoji-cats button.on{background:#fff}.emoji-grid{flex:1;min-height:0;overflow-y:auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(36px,1fr));align-content:start;gap:2px;padding:6px}.emoji-grid button{aspect-ratio:1;border-radius:8px;font-size:24px;line-height:1}.emoji-grid button:active{background:#e8e9eb}.emoji-empty{grid-column:1 / -1;padding:28px 8px;text-align:center;color:#8a8a8a;font-size:13px}.menu-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000047;z-index:20;display:flex;align-items:flex-end;justify-content:center}.msg-menu{width:calc(100% - 24px);max-width:420px;margin:0 12px calc(18px + var(--safe-bottom));background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 10px 30px #0000001f}.msg-menu button{width:100%;padding:14px 16px;background:#fff;color:#111;text-align:center;font-size:16px;border-bottom:1px solid #f0f0f0}.msg-menu button:last-child{border-bottom:0;color:#6b7280}.msg-menu button.danger{color:var(--danger)}.image-lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:30;background:#000000e0;display:flex;align-items:center;justify-content:center;padding:16px}.image-lightbox img{max-width:100%;max-height:100%;object-fit:contain;cursor:zoom-out}.composer textarea{flex:1;min-width:0;resize:none;min-height:36px;max-height:120px;background:#f4f5f7;border:1px solid #e6e6e6;border-radius:12px;padding:8px 10px;color:#111}.composer textarea::placeholder{color:#9aa0a6}.send{width:36px;height:36px;flex:0 0 36px;padding:0;border-radius:12px;background:#3478f6;color:#fff;display:grid;place-items:center}.toggle{width:40px;height:40px;padding:0;border-radius:12px;color:#6b7280}.toggle.on{color:#e8590c;background:#fff4e6}.toggle.emoji-on,.toggle.plus-on{color:#3478f6;background:#e8f1ff}.badge{position:absolute;top:2px;right:2px;min-width:14px;height:14px;padding:0 3px;border-radius:7px;background:#e8590c;color:#fff;font-size:9px;line-height:14px;text-align:center}.settings{height:100%;height:100dvh;overflow-y:auto;padding:calc(16px + var(--safe-top)) 20px calc(24px + var(--safe-bottom));display:flex;flex-direction:column;gap:16px}.choice{display:flex;gap:8px}.choice button{flex:1;height:44px;border-radius:12px;background:#f4f5f7;border:1px solid #e6e6e6;color:#111}.choice button.on{background:#e8f1ff;border-color:#3478f6;color:#3478f6}.hint{color:#8a8a8a;font-size:13px;line-height:1.5}.settings h3{margin:0 0 8px}.call-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;background:#111;color:#fff;display:flex;flex-direction:column}.call-remote,.call-blank{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;background:#111}.call-blank{background:#1a1a1a}.call-local{position:absolute;top:calc(16px + var(--safe-top));right:14px;width:108px;height:144px;object-fit:cover;border-radius:14px;background:#2a2a2a;transform:scaleX(-1);z-index:2}.call-local.off{opacity:.2}.call-top{position:relative;z-index:2;padding:calc(22px + var(--safe-top)) 20px 0;text-align:center}.call-top h2{margin:0;font-size:22px;font-weight:600}.call-top p{margin:8px 0 0;color:#ffffffb8}.call-top .err{color:#ff8a80}.call-actions{position:absolute;left:0;right:0;bottom:calc(28px + var(--safe-bottom));z-index:2;display:flex;justify-content:center;align-items:center;gap:22px}.call-btn{width:64px;height:64px;border-radius:32px;display:grid;place-items:center;color:#fff}.call-btn.reject{background:#d94841}.call-btn.accept{background:#2f9e44}.call-btn.ghost{width:52px;height:52px;border-radius:26px;background:#ffffff29}.call-btn.ghost.on{background:#fff;color:#111}.call-btn:disabled{opacity:.35}.call-toast{position:fixed;left:16px;right:16px;top:calc(16px + var(--safe-top));z-index:50;padding:12px 14px;border-radius:12px;background:#111111e0;color:#fff;text-align:center;font-size:14px}