:root{--deep:#f4f7fb;--deep-2:#fff;--deep-3:#eaf6ff;--cool:#00a8f0;--cool-hi:#0078d4;--heat:#ff6b35;--ink:#0a1426;--ink-2:#536074;--ink-3:#8993a4;--line:#dfe6ef;--line-2:#cbd6e3;--ok:#1e9e6a;--danger:#d6332b;--paper:#fff;--top-bg:rgba(255,255,255,.96);--bubble:#fff;--bubble-mine:#dff4ff;--shadow:0 8px 28px rgba(10,20,38,.12);--font-display:"Unbounded",Arial,sans-serif;--font-body:"Onest",Arial,sans-serif;--app-height:100dvh;color-scheme:light}
html.theme-dark{--deep:#0a1426;--deep-2:#11203a;--deep-3:#152945;--ink:#f4f7fb;--ink-2:#bdc7d6;--ink-3:#8390a4;--line:rgba(255,255,255,.09);--line-2:rgba(255,255,255,.16);--paper:#11203a;--top-bg:rgba(17,32,58,.97);--bubble:#172b48;--bubble-mine:#103f5a;--shadow:0 10px 34px rgba(0,0,0,.34);color-scheme:dark}
*,*::before,*::after{box-sizing:border-box;min-width:0}
html,body,#app{width:100%;height:100%;max-width:100%;overflow:hidden}
body{margin:0;background:#eaf6ff;color:var(--ink);font:15px/1.4 var(--font-body);overscroll-behavior:none;-webkit-font-smoothing:antialiased}
html.theme-dark body{background:#0a1426}
button,input,textarea{font:inherit;color:inherit}button{cursor:pointer}button:disabled{opacity:.48;cursor:default}input,textarea{font-size:16px}img,video,canvas{max-width:100%}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.icon-btn,.ghost,.primary{min-width:44px;min-height:44px;border-radius:12px;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;gap:7px;font-weight:600;background:transparent}
.icon-btn{padding:0 11px;font-size:21px}.ghost{padding:9px 13px;border-color:var(--line-2);background:var(--paper)}.primary{padding:9px 16px;background:var(--cool);color:#fff}.danger{color:var(--danger)}
.icon-btn:hover,.ghost:hover{background:var(--deep-3)}.primary:hover{filter:brightness(.94)}
.app-shell{height:var(--app-height,100dvh);max-height:100dvh;width:100%;display:grid;grid-template-columns:minmax(300px,390px) minmax(0,1fr);overflow:hidden;background:var(--deep)}
.list-pane,.talk-pane{min-height:0;overflow:hidden;display:flex;flex-direction:column;background:var(--paper)}.list-pane{border-right:1px solid var(--line)}.talk-pane{background:var(--deep)}
.pane-head{height:64px;min-height:64px;padding:8px 10px;display:flex;align-items:center;gap:6px;background:var(--top-bg);border-bottom:1px solid var(--line);padding-top:max(8px,env(safe-area-inset-top))}
.brand-title{font:600 18px/1 var(--font-display);letter-spacing:-.03em}.spacer{flex:1}.head-actions{display:flex;gap:2px}.desktop-word{font-size:13px}.avatar-btn{border:0;background:transparent;padding:2px;border-radius:50%;min-width:48px;min-height:48px}
.avatar{width:48px;height:48px;flex:0 0 48px;border-radius:50%;display:grid;place-items:center;overflow:hidden;background:linear-gradient(145deg,#00a8f0,#0078d4);color:#fff;font:600 16px/1 var(--font-display)}.avatar.sm{width:42px;height:42px;flex-basis:42px;font-size:14px}.avatar.lg{width:104px;height:104px;flex-basis:104px;font-size:32px}.avatar img{width:100%;height:100%;display:block;object-fit:cover}
.search-wrap{margin:9px 10px;display:flex;align-items:center;gap:7px;height:44px;padding:0 12px;border:1px solid var(--line);border-radius:12px;background:var(--deep)}.search-wrap:focus-within{border-color:var(--cool)}.search{width:100%;border:0;outline:0;background:transparent}.search-clear{border:0;background:transparent;min-width:32px;min-height:32px;color:var(--ink-2)}
.room-list{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain}.room{width:100%;min-height:72px;padding:9px 12px;border:0;border-bottom:1px solid var(--line);background:transparent;display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:10px;align-items:center;text-align:left}.room:hover,.room.on{background:var(--deep-3)}.room-copy{align-self:stretch;display:flex;flex-direction:column;justify-content:center;overflow:hidden}.room-name-line{display:flex;align-items:center;gap:6px}.room-name{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.room-last{color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:3px}.room-meta{align-self:stretch;display:flex;flex-direction:column;align-items:flex-end;justify-content:center;gap:7px}.room-time{font-size:12px;color:var(--ink-3)}.badge{min-width:20px;height:20px;padding:0 6px;border-radius:999px;display:grid;place-items:center;background:var(--cool);color:#fff;font-size:11px;font-weight:700}.demo-mark{font-size:9px;letter-spacing:.05em;text-transform:uppercase;color:var(--cool-hi);border:1px solid var(--line-2);border-radius:999px;padding:1px 5px}
.state-box{margin:auto;padding:30px 22px;text-align:center;color:var(--ink-2)}.state-box b{display:block;color:var(--ink);font-size:17px;margin-bottom:5px}.spinner{width:28px;height:28px;margin:0 auto 12px;border:3px solid var(--line);border-top-color:var(--cool);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.file-hits{max-height:36%;overflow:auto;border-top:1px solid var(--line)}.file-label{padding:8px 14px 4px;color:var(--ink-3);font-size:12px}.file-hit{width:100%;min-height:54px;padding:8px 14px;border:0;border-top:1px solid var(--line);background:transparent;text-align:left}.file-hit b,.file-hit span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-hit span{color:var(--ink-3);font-size:12px}
.talk-head{height:64px;min-height:64px}.back{display:none}.talk-title{display:flex;flex-direction:column;overflow:hidden}.talk-title b,.talk-title span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.talk-title b{font-size:16px}.talk-title span{font-size:12px;color:var(--ink-2)}
.msgs{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;padding:16px clamp(10px,3vw,42px);display:flex;flex-direction:column;gap:6px;background:linear-gradient(rgba(234,246,255,.55),rgba(244,247,251,.8))}.theme-dark .msgs{background:linear-gradient(rgba(10,20,38,.9),rgba(17,32,58,.68))}.day{align-self:center;position:sticky;top:2px;z-index:1;padding:5px 10px;border-radius:999px;background:var(--top-bg);border:1px solid var(--line);color:var(--ink-2);font-size:12px}.msg{max-width:min(560px,82%);padding:7px 10px 5px;border:1px solid var(--line);border-radius:5px 15px 15px;background:var(--bubble);box-shadow:0 1px 2px rgba(10,20,38,.08);overflow:hidden}.msg.mine{align-self:flex-end;background:var(--bubble-mine);border-radius:15px 5px 15px 15px}.who-line{font-size:12px;font-weight:700;color:var(--cool-hi)}.body{white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word}.msg-foot{display:flex;justify-content:flex-end;gap:4px;margin-top:3px;font-size:11px;color:var(--ink-3)}.status{color:var(--cool-hi);font-weight:700}.msg img,.msg video{display:block;width:auto;max-width:100%;max-height:340px;border-radius:10px;margin:3px 0}.msg .file{display:block;max-width:100%;overflow-wrap:anywhere;color:var(--cool-hi);font-weight:600}.message-jump{outline:3px solid rgba(0,168,240,.35)}
.composer-wrap{background:var(--top-bg);border-top:1px solid var(--line);padding:7px 9px calc(7px + env(safe-area-inset-bottom))}.composer{display:flex;align-items:flex-end;gap:6px;max-width:1100px;margin:auto}.composer-box{flex:1;display:flex;align-items:flex-end;border:1px solid var(--line);background:var(--paper);border-radius:18px;padding:3px}.composer textarea{flex:1;resize:none;max-height:112px;min-height:42px;padding:10px 8px;border:0;outline:0;background:transparent;line-height:1.35}.send{border-radius:50%;width:44px;min-width:44px;padding:0;font-size:19px}.attach-err{padding:2px 54px 0;color:var(--danger);font-size:12px;min-height:0}.empty-talk{margin:auto;color:var(--ink-3);text-align:center;padding:20px}
.overlay{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:max(12px,env(safe-area-inset-top)) 12px max(12px,env(safe-area-inset-bottom));background:rgba(4,12,24,.55);backdrop-filter:blur(3px)}.modal{width:min(520px,100%);max-width:100%;max-height:100%;display:flex;flex-direction:column;overflow:hidden;background:var(--paper);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.modal-head{height:60px;min-height:60px;padding:8px 10px;display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--line)}.modal-head h2{margin:0;font:600 17px/1.2 var(--font-display)}.modal-body{padding:16px;overflow:auto;min-height:0}.modal-actions{display:flex;justify-content:flex-end;gap:8px;padding:10px;border-top:1px solid var(--line);padding-bottom:max(10px,env(safe-area-inset-bottom))}.modal-actions>*{min-width:100px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field span{font-size:13px;font-weight:600}.field input{height:46px;width:100%;border:1px solid var(--line-2);border-radius:12px;padding:0 12px;background:var(--deep)}.hint,.muted{color:var(--ink-2);font-size:13px}.err{color:var(--danger);font-size:13px;min-height:18px}.profile-card{display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px}.profile-card h3{margin:0;font:600 20px/1.2 var(--font-display)}
.people{max-height:min(42vh,360px);overflow:auto;border:1px solid var(--line);border-radius:12px}.person{display:grid;grid-template-columns:44px 1fr 44px;align-items:center;gap:10px;min-height:58px;padding:6px 9px;border-bottom:1px solid var(--line)}.person:last-child{border-bottom:0}.person input{width:22px;height:22px}.group-avatar-row{display:flex;align-items:center;gap:12px;margin-bottom:14px}.group-avatar-row .avatar{width:72px;height:72px;flex-basis:72px}.section-title{font-weight:700;margin:12px 0 7px}
.sheet{align-self:flex-end;width:min(520px,100%);border-radius:18px 18px 0 0}.sheet .modal-body{padding:8px}.sheet-action{width:100%;min-height:52px;border:0;border-bottom:1px solid var(--line);background:transparent;text-align:left;padding:0 14px}.sheet-action:last-child{border-bottom:0}
.crop-modal{width:min(560px,100%)}.crop-stage{position:relative;width:min(360px,100%);aspect-ratio:1;margin:auto;overflow:hidden;border-radius:14px;background:#071018;touch-action:none}.crop-stage canvas{display:block;width:100%;height:100%}.crop-mask{pointer-events:none;position:absolute;inset:0;border-radius:50%;box-shadow:0 0 0 100vmax rgba(0,0,0,.48);outline:2px solid rgba(255,255,255,.85);outline-offset:-2px}.zoom-row{display:grid;grid-template-columns:30px 1fr 30px;gap:8px;align-items:center;margin-top:16px}.zoom-row input{width:100%}.crop-preview{width:64px;height:64px;border-radius:50%;overflow:hidden;border:2px solid var(--cool);margin:12px auto 0;background:var(--deep)}.crop-preview canvas{width:100%;height:100%}
.login-wrap{min-height:100dvh;display:grid;place-items:center;padding:20px}.login-box{width:min(420px,100%);padding:26px;background:var(--paper);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.login-box h1{margin:8px 0;font:600 28px/1.15 var(--font-display)}.theme-float{position:fixed;z-index:20;right:14px;top:max(14px,env(safe-area-inset-top))}.kicker{color:var(--cool-hi);font-weight:700;letter-spacing:.12em;font-size:11px}#tg{min-height:48px;margin-top:18px}
.toast{position:fixed;z-index:200;left:50%;bottom:calc(78px + env(safe-area-inset-bottom));transform:translateX(-50%);max-width:calc(100% - 24px);padding:10px 14px;border-radius:12px;background:var(--ink);color:var(--paper);box-shadow:var(--shadow)}
@media(max-width:800px){.app-shell{display:block;position:relative}.list-pane,.talk-pane{position:absolute;inset:0;width:100%;height:100%}.talk-pane{display:none}.app-shell.show-talk .list-pane{display:none}.app-shell.show-talk .talk-pane{display:flex}.back{display:inline-flex}.pane-head{height:60px;min-height:60px}.desktop-word{display:none}.room{min-height:70px;padding-left:10px;padding-right:10px}.msgs{padding:10px}.msg{max-width:88%}.overlay{padding:0;align-items:stretch}.modal:not(.sheet){width:100%;height:100%;max-height:none;border-radius:0;border:0}.modal-body{padding:14px}.crop-modal .modal-body{display:flex;flex-direction:column;justify-content:center}.sheet{height:auto;max-height:80%;align-self:flex-end}.composer-wrap{padding-left:6px;padding-right:6px}}
@media(min-width:801px){.talk-pane{border-left:0}.overlay{padding:24px}}
@media(max-width:370px){.pane-head{padding-left:6px;padding-right:6px}.icon-btn{padding:0 9px}.room{grid-template-columns:44px minmax(0,1fr) auto;gap:8px}.avatar{width:44px;height:44px;flex-basis:44px}.msg{max-width:92%}.modal-actions>*{min-width:0;flex:1}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}