:root{
  --tg-blue:#3390ec;--tg-blue-dark:#2481cc;--tg-green:#5ac85a;--bg:#ffffff;--panel:#ffffff;--panel2:#f4f4f5;--line:#e6e7ea;--text:#111827;--muted:#707579;--soft:#f1f3f5;--bubble-in:#ffffff;--bubble-out:#e3fee0;--bubble-out-line:#c5e8c0;--danger:#ef4444;--shadow:0 16px 50px rgba(15,23,42,.14);--side-w:420px;--info-w:360px;--radius:16px;
}
*{box-sizing:border-box}html,body{height:100%;overflow:hidden}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:#dfe4ea;font-size:14px;-webkit-font-smoothing:antialiased}button,input,textarea{font:inherit}button{cursor:pointer}svg{width:22px;height:22px;fill:currentColor;display:block}.primary{border:0;background:var(--tg-blue);color:#fff;border-radius:12px;padding:12px 16px;font-weight:700;transition:.18s;box-shadow:0 8px 18px rgba(51,144,236,.22)}.primary:hover{background:var(--tg-blue-dark);transform:translateY(-1px)}
.icon-btn{width:40px;height:40px;border:0;border-radius:50%;background:transparent;color:#68727d;display:grid;place-items:center;transition:.16s}.icon-btn:hover{background:rgba(112,117,121,.12);color:#222}.icon-btn:active{transform:scale(.94)}.menu-btn{position:relative;gap:4px}.menu-btn span{width:18px;height:2px;border-radius:5px;background:currentColor;display:block}
.auth-shell{min-height:100dvh;display:grid;place-items:center;background:radial-gradient(circle at 20% 0,rgba(51,144,236,.20),transparent 34%),linear-gradient(135deg,#eef6ff,#ffffff 45%,#f3f5f7);padding:22px}.auth-card{width:min(420px,100%);background:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.72);border-radius:28px;box-shadow:0 30px 80px rgba(15,23,42,.12);padding:34px;backdrop-filter:blur(24px);text-align:center}.auth-mark{width:86px;height:86px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#35a9f4,#168acb);margin:0 auto 18px;color:#fff;box-shadow:0 18px 40px rgba(51,144,236,.34)}.auth-mark span{font-weight:900;font-size:38px}.auth-card h1{margin:0;font-size:34px;letter-spacing:-.03em}.auth-card p{margin:8px 0 24px;color:var(--muted)}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;background:#f2f3f5;border-radius:15px;padding:4px;margin-bottom:22px}.auth-tab{border:0;background:transparent;border-radius:12px;padding:10px;color:#707579;font-weight:700}.auth-tab.active{background:#fff;color:#111827;box-shadow:0 5px 15px rgba(15,23,42,.07)}.auth-form{display:none;text-align:left;gap:10px}.auth-form.active{display:grid}.auth-form label{font-size:13px;color:#707579;padding-left:4px}.auth-form input,.modal-card input,.modal-card textarea,.profile-form input,.profile-form textarea{border:1px solid var(--line);background:#fff;border-radius:13px;padding:13px 14px;outline:none;width:100%;transition:.15s}.auth-form input:focus,.modal-card input:focus,.profile-form input:focus,.profile-form textarea:focus{border-color:rgba(51,144,236,.5);box-shadow:0 0 0 4px rgba(51,144,236,.12)}.auth-tip{min-height:22px;margin-top:14px;color:var(--danger);font-weight:600}
.tg-app{height:100dvh;width:100vw;display:grid;grid-template-columns:var(--side-w) minmax(0,1fr);background:#fff;position:relative}.side{background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;min-width:0;z-index:5}.side-head{height:58px;display:flex;align-items:center;gap:8px;padding:8px 12px 8px 10px;flex-shrink:0}.search-wrap{height:42px;background:#f1f3f5;border-radius:23px;display:flex;align-items:center;gap:8px;padding:0 14px;flex:1;color:#7b8793;transition:.15s}.search-wrap:focus-within{background:#fff;box-shadow:0 0 0 2px rgba(51,144,236,.22)}.search-wrap input{border:0;background:transparent;outline:0;width:100%;height:100%;color:#111827}.folder-tabs{display:flex;gap:8px;overflow:auto;padding:0 12px 10px;flex-shrink:0}.folder-tabs::-webkit-scrollbar{display:none}.folder-tabs button{white-space:nowrap;border:0;padding:8px 14px;border-radius:16px;background:transparent;color:#68727d;font-weight:700}.folder-tabs button.active{background:#e7f3ff;color:var(--tg-blue)}.chat-list{flex:1;overflow-y:auto;overflow-x:hidden;padding:2px 8px 86px}.chat-list::-webkit-scrollbar,.messages-scroll::-webkit-scrollbar,.info-body::-webkit-scrollbar{width:8px}.chat-list::-webkit-scrollbar-thumb,.messages-scroll::-webkit-scrollbar-thumb,.info-body::-webkit-scrollbar-thumb{background:rgba(112,117,121,.25);border-radius:20px}.chat-row{height:72px;border:0;background:transparent;border-radius:12px;width:100%;display:grid;grid-template-columns:56px minmax(0,1fr) auto;align-items:center;gap:10px;padding:8px 10px;text-align:left;color:inherit;position:relative;transition:.12s}.chat-row:hover{background:#f3f5f7}.chat-row.active{background:#419fd9;color:#fff}.chat-row.active .chat-meta,.chat-row.active .preview,.chat-row.active .row-time,.chat-row.active .row-sub{color:rgba(255,255,255,.82)}.avatar{width:52px;height:52px;border-radius:50%;object-fit:cover;display:block;background:#dfe3e8}.row-main{min-width:0}.row-title{display:flex;align-items:center;gap:5px;font-weight:760;font-size:15px;line-height:1.2}.row-title span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.preview{color:#707579;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:5px;font-size:13px}.row-side{display:flex;flex-direction:column;align-items:flex-end;gap:7px}.row-time{color:#8a929a;font-size:12px}.unread{min-width:22px;height:22px;border-radius:12px;background:var(--tg-blue);color:#fff;font-size:12px;font-weight:800;display:grid;place-items:center;padding:0 7px}.chat-row.active .unread{background:#fff;color:#419fd9}.badge-mini{display:inline-flex;align-items:center;justify-content:center;min-width:16px;height:16px;border-radius:8px;color:white;font-size:10px;padding:0 5px;font-weight:900}.muted-icon{opacity:.65}.search-panel{padding:0 8px 10px;border-bottom:1px solid var(--line);max-height:48%;overflow:auto}.panel-title{font-size:12px;text-transform:uppercase;color:#8a929a;font-weight:800;padding:10px 10px 6px}.result-row{display:flex;align-items:center;gap:12px;border:0;background:transparent;width:100%;padding:10px;border-radius:12px;text-align:left}.result-row:hover{background:#f3f5f7}.result-row img{width:46px;height:46px;border-radius:50%}.result-row strong{display:block}.result-row span{color:var(--muted);font-size:13px}
.main{min-width:0;min-height:0;position:relative;background:#9bb4c6;overflow:hidden}.main:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 10% 20%,rgba(255,255,255,.12) 0 7px,transparent 8px),radial-gradient(circle at 70% 15%,rgba(255,255,255,.10) 0 5px,transparent 6px),linear-gradient(135deg,#c7d9e6,#8fa8bb);background-size:120px 120px,90px 90px,100% 100%;opacity:.72}.empty-chat{position:absolute;inset:0;display:grid;place-items:center;align-content:center;gap:14px;color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.14);z-index:1}.empty-badge{background:rgba(0,0,0,.22);padding:8px 18px;border-radius:20px;font-weight:800;backdrop-filter:blur(12px)}.empty-chat p{margin:0;background:rgba(0,0,0,.22);padding:8px 18px;border-radius:20px;backdrop-filter:blur(12px)}.chat{position:absolute;inset:0;display:grid;grid-template-rows:56px auto minmax(0,1fr) auto;z-index:2;min-height:0}.chat-head{height:56px;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(0,0,0,.08);display:flex;align-items:center;padding:6px 12px;gap:10px;z-index:5}.mobile-back{display:none}.chat-avatar{width:42px;height:42px;border-radius:50%;object-fit:cover;background:#dfe3e8}.chat-title-area{border:0;background:transparent;text-align:left;flex:1;min-width:0;padding:4px 0}.chat-title-area strong{display:block;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-title-area span{display:block;color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pinned-bar{height:42px;background:rgba(255,255,255,.93);border-bottom:1px solid rgba(0,0,0,.08);display:flex;align-items:center;gap:10px;padding:0 20px;color:#4d5965;z-index:4}.pinned-bar b{color:var(--tg-blue);border-left:3px solid var(--tg-blue);padding-left:8px}.pinned-bar span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.messages-scroll{min-height:0;overflow-y:auto;overflow-x:hidden;position:relative;scroll-behavior:smooth}.messages{max-width:830px;margin:0 auto;padding:18px 18px 12px;display:flex;flex-direction:column;gap:3px;min-height:100%}.load-more{align-self:center;margin:14px auto 0;border:0;background:rgba(0,0,0,.22);color:#fff;border-radius:15px;padding:8px 14px;display:block;backdrop-filter:blur(12px)}.date-chip{align-self:center;background:rgba(0,0,0,.25);color:#fff;border-radius:18px;padding:5px 12px;font-size:12px;margin:10px 0 8px;backdrop-filter:blur(12px);font-weight:700}.msg-row{display:flex;gap:8px;align-items:flex-end;max-width:74%;position:relative;animation:msgIn .15s ease-out}.msg-row.mine{align-self:flex-end;flex-direction:row-reverse}.msg-row:not(.mine){align-self:flex-start}.msg-avatar{width:34px;height:34px;border-radius:50%;object-fit:cover;flex:0 0 34px;margin-bottom:2px}.msg-row.mine .msg-avatar{display:none}.bubble{position:relative;background:var(--bubble-in);border-radius:14px 14px 14px 4px;padding:7px 10px 6px;box-shadow:0 1px 2px rgba(0,0,0,.10);min-width:82px;line-height:1.45;word-break:break-word}.msg-row.mine .bubble{background:var(--bubble-out);border-radius:14px 14px 4px 14px}.bubble:after{content:"";position:absolute;bottom:0;border:8px solid transparent}.msg-row:not(.mine) .bubble:after{left:-7px;border-right-color:var(--bubble-in);border-bottom:0}.msg-row.mine .bubble:after{right:-7px;border-left-color:var(--bubble-out);border-bottom:0}.sender-line{display:flex;align-items:center;gap:5px;color:var(--tg-blue);font-size:13px;font-weight:760;margin-bottom:2px}.message-text{white-space:pre-wrap}.message-deleted{font-style:italic;color:#7e8790}.msg-time{float:right;margin:4px 0 0 8px;color:#7c858e;font-size:11px;display:inline-flex;align-items:center;gap:3px}.msg-row.mine .msg-time{color:#5c8958}.ticks{font-size:12px;letter-spacing:-4px;color:#4fae4e;margin-left:2px}.edited{font-size:11px;color:#7c858e;margin-right:2px}.photo-msg{display:block;max-width:min(360px,68vw);border-radius:12px;margin:2px 0 5px}.file-msg{display:flex;align-items:center;gap:10px;background:rgba(0,0,0,.04);border-radius:12px;padding:10px;margin:2px 0 6px;color:inherit;text-decoration:none}.file-icon{width:42px;height:42px;border-radius:50%;background:var(--tg-blue);color:#fff;display:grid;place-items:center;font-weight:900}.reactions{display:flex;gap:4px;margin-top:5px;flex-wrap:wrap}.reaction{border:0;background:rgba(51,144,236,.12);color:#236899;border-radius:12px;padding:2px 7px;font-size:12px}.system-msg{align-self:center;max-width:70%;background:rgba(0,0,0,.22);color:#fff;border-radius:16px;padding:7px 12px;font-size:13px;backdrop-filter:blur(12px);margin:8px 0}.composer{min-height:60px;padding:8px 14px 12px;display:flex;gap:8px;align-items:flex-end;z-index:5;background:linear-gradient(to top,rgba(0,0,0,.08),transparent)}.compose-box{flex:1;background:#fff;border-radius:18px;min-height:44px;display:flex;flex-direction:column;box-shadow:0 1px 3px rgba(0,0,0,.08);overflow:hidden}.compose-box textarea{border:0;outline:0;resize:none;min-height:44px;max-height:150px;padding:12px 14px;font-size:15px;line-height:20px;background:transparent}.send-btn{width:46px;height:46px;border:0;border-radius:50%;background:var(--tg-blue);color:#fff;display:grid;place-items:center;box-shadow:0 10px 24px rgba(51,144,236,.28);transition:.16s}.send-btn:hover{background:var(--tg-blue-dark)}.send-btn:active{transform:scale(.94)}.composer .icon-btn{background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.08)}.reply-preview,.file-preview{display:flex;align-items:center;justify-content:space-between;gap:8px;border-bottom:1px solid #eef0f2;padding:8px 12px;color:#68727d;font-size:13px}.reply-preview span{border-left:3px solid var(--tg-blue);padding-left:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reply-preview button{border:0;background:transparent;color:#88919a;font-size:20px}.scroll-down{position:absolute;right:22px;bottom:78px;width:44px;height:44px;border:0;border-radius:50%;background:#fff;color:#68727d;box-shadow:0 10px 24px rgba(15,23,42,.16);display:grid;place-items:center;z-index:8}
.info-drawer{position:absolute;right:0;top:0;bottom:0;width:var(--info-w);background:#fff;z-index:11;box-shadow:-18px 0 55px rgba(15,23,42,.13);transform:translateX(105%);transition:.22s cubic-bezier(.2,.8,.2,1);display:flex;flex-direction:column}.info-drawer.open{transform:translateX(0)}.info-drawer header{height:56px;display:flex;align-items:center;gap:12px;padding:8px 12px;border-bottom:1px solid var(--line)}.info-body{overflow:auto;padding-bottom:30px}.info-cover{padding:24px;text-align:center;border-bottom:1px solid var(--line)}.info-cover img{width:108px;height:108px;border-radius:50%;object-fit:cover}.info-cover h2{margin:12px 0 2px}.info-cover p{margin:0;color:var(--muted)}.info-section{padding:12px}.info-item{display:flex;align-items:center;gap:12px;padding:12px;border-radius:12px}.info-item:hover{background:#f4f6f8}.info-item .small{color:var(--muted);font-size:13px}.member-list{display:grid;gap:2px}.drawer-menu{position:absolute;left:0;top:0;bottom:0;width:310px;background:#fff;z-index:20;box-shadow:20px 0 60px rgba(15,23,42,.18);transform:translateX(-105%);transition:.22s cubic-bezier(.2,.8,.2,1);display:flex;flex-direction:column;padding:0 8px 16px}.drawer-menu.open{transform:translateX(0)}.drawer-profile{min-height:158px;background:linear-gradient(135deg,#2AABEE,#70c8ff);margin:0 -8px 8px;padding:22px;color:#fff;display:flex;flex-direction:column;justify-content:flex-end}.drawer-profile img{width:62px;height:62px;border-radius:50%;border:3px solid rgba(255,255,255,.75)}.drawer-profile strong{font-size:18px;margin-top:10px}.drawer-profile span{opacity:.88}.drawer-menu button,.drawer-link{border:0;background:transparent;color:#202936;text-decoration:none;border-radius:12px;padding:13px 14px;text-align:left;font-weight:650}.drawer-menu button:hover,.drawer-link:hover{background:#f3f5f7}.drawer-menu .danger{color:var(--danger)}.overlay{position:absolute;inset:0;background:rgba(0,0,0,.25);z-index:15;opacity:0;pointer-events:none;transition:.2s}.overlay.show{opacity:1;pointer-events:auto}.modal{position:absolute;inset:0;z-index:40;background:rgba(0,0,0,.24);display:grid;place-items:center;padding:20px;backdrop-filter:blur(4px)}.modal[hidden]{display:none}.modal-card{width:min(440px,94vw);background:#fff;border-radius:20px;box-shadow:var(--shadow);padding:18px}.modal-card.large{width:min(760px,94vw);max-height:90dvh;overflow:auto}.modal-card header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.modal-card label{display:block;color:var(--muted);font-size:13px;margin:10px 0 6px}.profile-grid{display:grid;grid-template-columns:240px minmax(0,1fr);gap:20px}.profile-card{text-align:center;background:#f7f9fc;border:1px solid #eef1f4;border-radius:18px;padding:20px}.profile-card img{width:104px;height:104px;border-radius:50%;object-fit:cover}.profile-card h2{margin:12px 0 4px}.profile-card p{margin:0;color:var(--muted)}.profile-form{display:grid;gap:9px}.profile-stats{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.stat{background:#fff;border-radius:14px;padding:13px}.stat b{display:block;font-size:22px}.stat span{color:var(--muted)}.badges{display:flex;gap:5px;flex-wrap:wrap;margin-top:8px}.user-badge{display:inline-flex;align-items:center;gap:4px;color:#fff;border-radius:999px;padding:3px 8px;font-size:11px;font-weight:900}.mobile-tabs{display:none}.popover{position:absolute;right:18px;bottom:74px;z-index:30;background:#fff;border-radius:18px;box-shadow:var(--shadow);padding:10px;display:grid;grid-template-columns:repeat(4,42px);gap:5px}.popover[hidden]{display:none}.popover button{width:42px;height:42px;border:0;background:transparent;border-radius:12px;font-size:22px}.popover button:hover{background:#f3f5f7}.context-menu{position:absolute;z-index:60;background:#fff;border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow);padding:6px;min-width:180px}.context-menu[hidden]{display:none}.context-menu button{display:block;width:100%;border:0;background:transparent;text-align:left;padding:10px 12px;border-radius:10px;color:#202936}.context-menu button:hover{background:#f4f6f8}.context-menu .danger{color:var(--danger)}.toast{position:absolute;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:rgba(17,24,39,.9);color:#fff;border-radius:999px;padding:10px 16px;z-index:80;opacity:0;pointer-events:none;transition:.2s;backdrop-filter:blur(10px)}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
@keyframes msgIn{from{opacity:0;transform:translateY(6px) scale(.98)}to{opacity:1;transform:none}}
@media (max-width:920px){:root{--side-w:100vw}.tg-app{display:block}.side{position:absolute;inset:0;transition:.22s;z-index:8}.main{position:absolute;inset:0;z-index:9;transform:translateX(100%);transition:.24s cubic-bezier(.2,.8,.2,1)}.tg-app.chat-open .main{transform:translateX(0)}.tg-app.chat-open .side{transform:translateX(-18%)}.mobile-back{display:grid}.chat-head{padding-left:6px}.chat-list{padding-bottom:82px}.mobile-tabs{height:64px;display:grid;grid-template-columns:repeat(3,1fr);position:absolute;left:0;right:0;bottom:0;background:rgba(255,255,255,.94);border-top:1px solid var(--line);backdrop-filter:blur(18px);z-index:10;padding-bottom:env(safe-area-inset-bottom)}.mobile-tabs button{border:0;background:transparent;color:#7a8490;display:grid;place-items:center;align-content:center;gap:3px;font-size:11px}.mobile-tabs button svg{width:22px;height:22px}.mobile-tabs button.active{color:var(--tg-blue)}.msg-row{max-width:86%}.messages{padding:12px 9px}.composer{padding:7px 8px calc(10px + env(safe-area-inset-bottom))}.composer .emoji{display:none}.info-drawer{width:100vw}.profile-grid{grid-template-columns:1fr}.drawer-menu{width:86vw}.auth-card{padding:26px}.folder-tabs{padding-bottom:6px}}
@media (min-width:921px){.tg-app.info-open{grid-template-columns:var(--side-w) minmax(0,1fr) var(--info-w)}.tg-app.info-open .info-drawer{position:relative;transform:none;box-shadow:none;border-left:1px solid var(--line)}}