:root{font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;color:#202532;background:#fff;font-synthesis:none;--ink:#202532;--muted:#77808f;--line:#edf0f4;--blue:#3568f6;--blue-dark:#2455dd;--blue-soft:#edf2ff;--surface:#f7f8fa}
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.shell{height:100dvh;display:grid;grid-template-columns:76px 312px minmax(0,1fr);overflow:hidden}.rail{background:#181c28;display:flex;flex-direction:column;align-items:center;padding:26px 10px 20px;color:#9299ad;z-index:2}.brand-icon{display:block;margin-bottom:36px}.brand-icon img{width:42px;height:42px;display:block}.rail-tools,.rail-bottom{display:flex;flex-direction:column;align-items:center;gap:16px;width:100%}.rail-bottom{margin-top:auto;gap:22px}.rail-btn{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:7px;width:54px;min-height:61px;border-radius:15px;font-size:10px;font-weight:500}.rail-btn:hover{color:#fff;background:#252a39}.rail-btn.active{color:#fff;background:#3568f6;box-shadow:0 5px 18px #07194045}.rail-account{padding:0;border-radius:50%}.rail-account .avatar{border:2px solid #5c6477;background:#e6eaf4;color:#414b68;width:38px;height:38px}.sidebar{background:#fff;border-right:1px solid 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.thread-panel{width:370px;flex-shrink:0;background:#fff;border-left:1px solid #e5eaf2;display:flex;flex-direction:column;min-width:0;min-height:0;box-shadow:-5px 0 20px #2c477203;z-index:4;animation:slide-in .2s ease-out}.thread-header{height:79px;display:flex;align-items:center;justify-content:space-between;padding:0 23px;border-bottom:1px solid var(--line);flex-shrink:0}.thread-header strong{display:flex;align-items:center;gap:8px;font-size:16px;letter-spacing:-.5px}.thread-header small{display:block;font-size:10px;color:#a0a9b6;margin-top:5px}.thread-count{font-size:10px;background:var(--blue-soft);color:var(--blue);border-radius:6px;padding:3px 6px}.thread-scroll{flex:1;min-height:0;overflow:auto;padding:23px 20px 0;overscroll-behavior:contain}.thread-scroll>.message:first-child{padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:18px}.thread-scroll .msg-content{max-width:calc(100% - 37px)}.thread-scroll .own .msg-content{max-width:92%}.thread-scroll .avatar{width:27px;height:27px;font-size:9px}.thread-scroll .msg-text{font-size:12px;padding:11px 12px;line-height:1.75}.thread-scroll .incoming .msg-bubble{background:#f4f6fa;border-color:#f0f2f6}.thread-scroll .msg-heading strong{font-size:11px}.thread-scroll .role{font-size:9px}.thread-scroll .message{gap:8px}.thread-scroll .photo-grid{gap:3px;padding:3px}.thread-scroll .photo-card{aspect-ratio:1.2;border-radius:9px}.thread-scroll .photo-count{font-size:8px;padding:3px 5px;left:5px;bottom:5px}.thread-scroll .photo-count svg{width:10px}.thread-scroll .message-actions{gap:3px}.thread-scroll .message-actions button{font-size:9px;padding:3px 5px}.thread-scroll .own{padding-left:8px}.thread-replies-label{font-size:10px;font-weight:600;color:#a2aab8;margin:0 0 22px;display:flex;gap:10px;align-items:center}.thread-replies-label:after{content:"";height:1px;background:var(--line);flex:1}.thread-empty{color:#919aaa;font-size:12px;line-height:1.8}.thread-panel .composer-wrap{padding:12px 16px 15px;background:#fff}.thread-panel .composer{border-radius:14px;background:#f8f9fc}.thread-panel .compose-row{gap:3px;padding:7px}.thread-panel .composer textarea{font-size:12px}.thread-panel .compose-tip,.thread-panel .keyboard-hint{display:none}.thread-panel .camera-btn{width:27px}.thread-panel .attach-btn{width:28px}.thread-panel .send-btn{width:31px;height:33px;border-radius:9px;margin-bottom:3px}.thread-panel .compose-hint{padding-top:9px}
.empty{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:240px;width:100%;height:100%;padding:30px 16px;color:#9aa8bf}.empty>svg{background:#edf2fc;box-sizing:content-box;padding:20px;border-radius:24px;color:#8aa7e8;margin-bottom:8px}.empty h2{font-size:18px;color:#556783;letter-spacing:-.5px;line-height:1.4}.empty p{font-size:12px;line-height:1.9;color:#95a1b4;margin:0}.gallery{flex:1;min-height:0;overflow:auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:22px;padding:28px 32px;align-content:start}.gallery-item{text-align:left;padding:0;min-width:0}.gallery-item img{width:100%;aspect-ratio:1.2;object-fit:cover;border-radius:16px;border:1px solid #e8edf4}.gallery-item p{font-size:12px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin:10px 0 5px}.gallery-item small{font-size:10px;color:var(--muted)}.searchbar{display:flex;align-items:center;gap:13px;padding:20px 32px;background:white;border-bottom:1px solid var(--line);color:#929fb5}.searchbar input{width:100%;background:transparent;border:0;outline:none;padding:9px 0;font-size:14px;color:var(--ink)}.thread-list{flex:1;min-height:0;overflow:auto;padding:25px 32px}.thread-list-card{display:block;text-align:left;width:100%;border:1px solid #e5eaf3;background:#fff;padding:22px;border-radius:16px;margin-bottom:13px}.thread-list-card:hover{border-color:#bacbf2}.thread-list-card h3{font-size:12px;margin:0 0 9px;color:#5c79b3;font-weight:650;display:flex;align-items:center;gap:5px}.thread-list-card h3 .unread{white-space:nowrap}.thread-list-card p{font-size:14px;margin:0 0 12px;color:#57627a;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.7}.thread-list-card small{font-size:10px;color:#95a0b2}.drop-overlay{display:none;position:absolute;inset:12px;background:#f4f7fff2;border:2px dashed #759aff;border-radius:20px;z-index:20;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--blue);pointer-events:none}.drop-overlay strong{font-size:22px;letter-spacing:-.5px}.drop-overlay span{font-size:12px}.dragging .drop-overlay{display:flex}.load-more{display:block;margin:15px auto;font-size:11px;color:#6b87bd;border:1px solid #dde5f5;background:white;border-radius:20px;padding:9px 20px}.connection-alert{color:#a9803c;background:#fff8e9;padding:9px 24px;font-size:11px;display:flex;gap:8px;align-items:center;justify-content:space-between}.boot{height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px}.boot strong{font-size:26px;letter-spacing:-1px}.boot span{color:var(--muted);font-size:13px}#toast{position:fixed;bottom:28px;left:50%;transform:translate(-50%,15px);background:#242d41;color:#fff;border-radius:13px;font-size:12px;padding:14px 22px;z-index:110;max-width:calc(100% - 32px);box-shadow:0 8px 25px #151f3e25;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;line-height:1.6}#toast.visible{opacity:1;transform:translate(-50%,0)}.primary,.secondary{border-radius:11px;padding:11px 16px;display:inline-flex;gap:8px;align-items:center;justify-content:center;font-size:12px;font-weight:600}.primary{background:var(--blue);color:#fff}.primary:hover{background:var(--blue-dark)}.secondary{background:#eef2f9;color:#687b9c}.modal-backdrop{position:fixed;inset:0;background:#111a30ae;backdrop-filter:blur(10px);z-index:90;display:flex;align-items:center;justify-content:center;padding:26px}.dialog{background:#fff;border-radius:24px;padding:28px;max-width:460px;width:100%;max-height:90dvh;overflow:auto;box-shadow:0 35px 100px #07102640}.dialog-header{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:20px}.dialog h2{font-size:20px;letter-spacing:-.6px;margin:0}.dialog p{font-size:12px;line-height:1.9;color:#8490a4}.dialog label.field{display:flex;flex-direction:column;gap:9px;color:#687994;font-size:12px;margin:22px 0}.dialog input[type=text]{padding:13px;border:1px solid #dce4f2;border-radius:10px;background:white;width:100%}.member-choice{display:flex;align-items:center;gap:12px;padding:13px 2px;border-bottom:1px solid var(--line);font-size:12px}.member-choice input{margin-left:auto}.member-choice small{color:#94a1b5;margin-left:auto;font-size:10px}.member-choice b{font-weight:600}.mini{display:inline-grid;place-items:center;color:#7692c6;width:28px;height:28px;border-radius:8px}.mini:hover{background:var(--blue-soft)}.dialog-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:25px}.pill-select{display:flex;gap:5px;background:#f0f3f9;border-radius:10px;padding:4px}.pill-select button{padding:10px;flex:1;border-radius:7px;font-size:12px;color:#8190aa}.pill-select .selected{background:white;box-shadow:0 2px 5px #24372008;color:var(--blue);font-weight:600}.lightbox{width:100%;height:100%;display:flex;flex-direction:column;color:white;align-items:center;justify-content:center;min-width:0}.lightbox img{max-width:100%;max-height:calc(100dvh - 180px);object-fit:contain;border-radius:12px;min-height:0}.lightbox-header{display:flex;align-items:center;justify-content:space-between;width:100%;gap:20px;margin-bottom:18px;font-size:12px}.lightbox-header .icon-btn{color:white}.lightbox-tools{display:flex;align-items:center;gap:10px;margin-top:20px}.lightbox-tools button,.lightbox-tools a{display:flex;gap:8px;align-items:center;border:1px solid #ffffff40;border-radius:10px;padding:11px 15px;font-size:12px;background:#ffffff10}.help-steps{display:flex;flex-direction:column;gap:20px;margin:22px 0}.help-steps div{display:flex;gap:14px;font-size:12px;line-height:1.8;color:#8b97ac}.help-steps svg{color:#6f93e6;flex-shrink:0}.help-steps strong{display:block;color:#536683;margin-bottom:2px}.highlight{animation:highlight 2s}@keyframes highlight{0%,60%{background:#e3ecff}100%{background:transparent}}@keyframes slide-in{from{transform:translateX(12px);opacity:.4}to{transform:translateX(0);opacity:1}}
@media(min-width:1550px){.shell{grid-template-columns:80px 330px minmax(0,1fr)}.timeline{padding-left:50px;padding-right:50px}.composer-wrap{padding-left:46px;padding-right:46px}.thread-panel{width:400px}.msg-text{font-size:15px}.photo-grid{width:560px}.has-photos .msg-content{max-width:min(80%,560px)}}
@media(max-width:1250px){.shell{grid-template-columns:68px 270px minmax(0,1fr)}.sidebar{padding-left:11px;padding-right:11px}.rail{padding-left:7px;padding-right:7px}.header-right{gap:15px}.header-right .avatars{display:none}.workspace-header{padding:0 25px}.tabs{padding:0 25px;gap:23px}.timeline{padding-left:25px;padding-right:25px}.composer-wrap{padding-left:23px;padding-right:23px}.thread-panel{width:330px}.thread-scroll{padding-left:15px;padding-right:15px}.thread-scroll .msg-content{max-width:calc(100% - 35px)}.compose-tip{display:none}.privacy{font-size:9px}}
@media(max-width:1100px){.header-right .live-state{display:none}.privacy{display:none}.thread-panel{width:315px}.thread-panel .camera-btn{display:none}.thread-panel .compose-row{gap:2px}.thread-scroll .msg-text{font-size:12px}.thread-scroll .photo-count{display:none}}
@media(max-width:1000px){.shell{grid-template-columns:64px 252px minmax(0,1fr)}.thread-panel{position:absolute;right:0;inset-block:0;width:min(410px,100%);box-shadow:-12px 0 40px #142c5520;z-index:5}.thread-panel .camera-btn{display:grid}.thread-scroll .photo-count{display:flex}.workspace-header{height:82px;padding:0 20px}.header-actions{padding-left:0;border:0;gap:1px}.header-title h1{font-size:18px}.header-title p{font-size:10px}.header-room{width:39px;height:39px;border-radius:13px}.header-actions [data-action=members]{display:none}.tabs{padding:0 23px;gap:23px}.demo-banner{padding:8px 20px}.demo-banner>div>span:last-child{font-size:10px}.demo-banner .login-link{font-size:10px}.demo-pill{display:none}.msg-content{max-width:83%}.has-photos .msg-content{max-width:90%}.composer-wrap{padding-left:20px;padding-right:20px}.keyboard-hint{font-size:9px}}
@media(max-width:720px){.shell{display:flex}.rail{display:none}.sidebar{position:fixed;left:0;top:0;bottom:0;width:min(320px,90vw);transform:translateX(-100%);visibility:hidden;transition:transform .22s ease;z-index:31;padding:24px 16px 18px;box-shadow:15px 0 40px #142c5510}.menu-open .sidebar{transform:translateX(0);visibility:visible}.menu-open .mobile-shade{display:block;position:fixed;inset:0;background:#1623416b;backdrop-filter:blur(5px);z-index:30}.icon-btn.sidebar-close{display:grid;margin-left:auto}.sidebar-account{display:flex}.sidebar-brand{padding-bottom:23px}.workspace{width:100%}.icon-btn.mobile-menu{display:inline-grid;width:22px;margin-left:-5px;color:#6b7e9f}.workspace-header{height:76px;padding:0 18px;gap:11px}.header-room{width:40px;height:40px;border-radius:14px}.header-title h1{font-size:18px;margin-bottom:5px}.header-title p{font-size:10px;max-width:180px;overflow:hidden;text-overflow:ellipsis}.header-title p span{margin:0 3px}.header-right{gap:0}.header-actions .icon-btn{width:30px}.header-actions [data-action=members]{display:none}.header-actions [data-action=help]{display:none}.demo-banner{min-height:32px;padding:7px 15px;gap:5px}.demo-banner>div>span:last-child{font-size:9px}.demo-banner .login-link{font-size:9px}.tabs{height:47px;padding:0 21px;gap:25px}.tab{font-size:11px;gap:6px}.tab svg{width:14px}.timeline{padding:0 16px 7px;scrollbar-gutter:auto}.date-line{font-size:9px;margin:23px 0}.message{gap:8px;margin-bottom:22px}.message>.avatar{width:29px;height:29px;font-size:10px}.msg-heading strong{font-size:11px}.role{font-size:9px}.msg-heading{gap:6px;margin-bottom:7px}.msg-text{font-size:14px;line-height:1.7;padding:12px 14px}.msg-content{max-width:82%}.has-photos .msg-content{max-width:calc(100% - 37px)}.own .msg-content{max-width:90%}.message.own{padding-left:0}.photo-card{aspect-ratio:1.15;border-radius:10px}.photo-count{font-size:8px;left:6px;bottom:6px;padding:4px 5px}.photo-count svg{width:10px}.message-actions{gap:4px}.message-actions button{font-size:10px;padding:4px 6px}.message-actions .reaction.add{opacity:1}.msg-delete{opacity:.65}.composer-wrap{padding:8px 12px max(9px,env(safe-area-inset-bottom))}.composer{border-radius:16px}.compose-row{padding:7px;gap:5px}.composer textarea{font-size:16px;padding-top:9px;line-height:22px;min-height:40px}.attach-btn{width:29px}.camera-btn{width:31px}.send-btn{width:35px;border-radius:11px}.compose-hint{padding:8px 5px 0;min-height:22px}.original-label{font-size:10px}.original-label input{width:12px;height:12px}.compose-tip{display:block;font-size:9px;margin-left:auto}.keyboard-hint{display:none}.thread-panel{width:100%;box-shadow:none;border:0;z-index:10}.thread-header{height:64px;padding:0 20px}.thread-header strong{font-size:16px}.thread-scroll{padding:21px 18px 0}.thread-scroll .msg-text{font-size:14px}.thread-scroll .avatar{width:29px;height:29px}.thread-scroll .photo-card{aspect-ratio:1.4}.thread-scroll .photo-count{display:flex}.thread-scroll .own .msg-content{max-width:88%}.thread-panel .composer-wrap{padding:8px 12px max(9px,env(safe-area-inset-bottom))}.thread-panel .composer textarea{font-size:16px}.thread-panel .compose-tip{display:none}.thread-panel .send-btn{width:35px;height:36px}.thread-panel .camera-btn{width:31px}.gallery{padding:20px;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 13px}.gallery-item img{border-radius:12px}.searchbar{padding:14px 20px}.searchbar input{font-size:16px}.thread-list{padding:20px}.thread-list-card{padding:18px}.modal-backdrop{padding:16px}.dialog{padding:23px;border-radius:22px}.dialog h2{font-size:18px}.dialog input[type=text]{font-size:16px}.lightbox-header{font-size:10px}.lightbox-tools button,.lightbox-tools a{font-size:11px;padding:10px 12px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}