:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;color:#252525;background:#e9e9e9;color-scheme:light;--green:#168747;--line:#dedede;--chat-height:100dvh}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}[hidden]{display:none!important}button:focus-visible,a:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:2px solid #238b52;outline-offset:3px}textarea:focus-visible{outline:0}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.chat-page{max-width:1024px;margin:0 auto;padding:8px 24px 0;height:100vh;height:var(--chat-height,100dvh);display:flex;flex-direction:column}.page-header{display:flex;align-items:center;gap:22px;min-height:72px;flex-shrink:0}.brand{font-size:27px;font-weight:850;letter-spacing:-1.4px;color:#bf2639}.brand span{color:#292c2e}.page-title{padding-left:21px;border-left:1px solid #cfcfcf;display:flex;align-items:baseline;gap:12px}.page-title h1{font-size:17px;font-weight:650;letter-spacing:.3px;margin:0}.page-title>span{font-size:12px;color:#777}.back-home{margin-left:auto;font-size:12px;color:#5e6360;padding:10px 0 10px 12px;white-space:nowrap}.back-home:hover{color:var(--green)}.chat-tabs{display:flex;flex-shrink:0;min-height:54px;margin:0;background:#fafafa;border:1px solid #d5d5d5;border-bottom:1px solid var(--line);border-radius:9px 9px 0 0;overflow:hidden}.chat-tabs a{position:relative;flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:16px 4px;font-size:14px;font-weight:550;color:#696969;white-space:nowrap;transition:background-color .14s,color .14s}.chat-tabs a:hover{background:#f0f2f0;color:#252525}.chat-tabs a[aria-current=page]{color:#158046;font-weight:700;background:#f0f6f1}.chat-tabs a[aria-current=page]:after{content:"";position:absolute;bottom:0;width:36px;height:3px;background:#1b9652;border-radius:3px 3px 0 0}.chat-shell{position:relative;flex:1;min-height:180px;display:flex;flex-direction:column;border:1px solid #d5d5d5;border-top:0;border-radius:0 0 9px 9px;overflow:hidden;background:#ededed}.announcement{flex-shrink:0;font-size:12px;line-height:1.65;color:#73746e;background:#f8f8f5;padding:10px 20px;border-bottom:1px solid #e3e3df;max-height:72px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere}.connection-bar{display:flex;align-items:center;gap:7px;min-height:32px;flex-shrink:0;padding:7px 20px;color:#7b807b;font-size:11px;background:#ededed}.status-dot{width:6px;height:6px;flex:none;border-radius:50%;background:#c69b51}.chat-shell[data-connected=true] .status-dot{background:#229a58}.connection-bar button{margin-left:auto;border:1px solid #b6c8bd;background:#fff;color:#236b42;padding:4px 9px;border-radius:4px;font-size:11px}.chat-list{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;overflow-anchor:none;padding:17px 24px 24px;scrollbar-width:thin;scrollbar-color:#c7c7c7 transparent}.empty{text-align:center;color:#8a8a8a;padding:28px 8px}.chat-message{display:flex;align-items:flex-start;gap:12px;margin:0 0 21px}.chat-message:last-child{margin-bottom:0}.avatar{position:relative;width:40px;height:40px;flex:0 0 40px;border-radius:5px;background:#d0d9d6;overflow:hidden;margin-top:1px}.avatar:before{content:"";position:absolute;top:7px;left:14px;width:12px;height:12px;border-radius:50%;background:#f8faf9}.avatar:after{content:"";position:absolute;left:7px;bottom:3px;width:26px;height:15px;border-radius:14px 14px 4px 4px;background:#f8faf9}.message-main{min-width:0;max-width:76%}.message-meta{display:flex;align-items:center;gap:9px;margin:0 0 6px;min-height:16px;font-size:12px;line-height:1.35;color:#929292}.message-meta strong{font-weight:450;color:#666;overflow-wrap:anywhere}.message-meta time{font-size:10px;white-space:nowrap;color:#707070;font-variant-numeric:tabular-nums}.bubble{position:relative;width:fit-content;max-width:100%;padding:10px 13px;border:1px solid #e8e8e8;border-radius:5px;background:white;color:#222;font-size:15px;line-height:1.65;white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word}.bubble:before{content:"";position:absolute;left:-5px;top:14px;width:8px;height:8px;background:inherit;border-left:1px solid #e8e8e8;border-bottom:1px solid #e8e8e8;transform:rotate(45deg)}.chat-message.own{flex-direction:row-reverse}.own .avatar{background:#9ac6a5!important}.own .message-meta{justify-content:flex-end}.own .bubble{margin-left:auto;background:#95ec69;border-color:#95ec69}.own .bubble:before{left:auto;right:-5px;border:0}.delete-button{border:0;background:none;color:#9c8585;font-size:10px;padding:3px 4px;transition:color .14s}.delete-button:hover{color:#b84444}.composer{flex-shrink:0;background:#f8f8f8;border-top:1px solid #dcdcdc;padding:11px 20px 10px}.composer-toolbar{display:flex;align-items:center;gap:10px;margin-bottom:9px;min-height:30px}.nickname-label{display:flex;align-items:center;gap:8px;font-size:12px;color:#787878}.nickname-label input{max-width:30vw;width:115px;padding:5px 8px;border:1px solid #dfdfdf;border-radius:4px;background:#fff;color:#454545;font-size:12px}.nickname-label input:disabled{color:#777;background:#eee}.nick-policy{color:#999;font-size:11px}.emoji-wrap{position:relative;margin-left:auto}.emoji-button{border:0;background:transparent;padding:5px 0 5px 8px;font-size:14px;color:#565d57;white-space:nowrap}.emoji-button:hover{color:var(--green)}.emoji-panel{position:fixed;z-index:10;background:#fff;border:1px solid #d8d8d8;border-radius:8px;box-shadow:0 6px 24px #00000018;overflow:auto;max-width:calc(100vw - 24px);max-height:60vh}.emoji-panel button{border:0;background:transparent;font-size:24px;padding:9px}.emoji-panel em-emoji-picker{max-width:100%;--rgb-background:255,255,255}.compose-entry{display:flex;align-items:flex-end;gap:10px;padding:6px;border:1px solid #d9d9d9;border-radius:6px;background:white;transition:border-color .14s,box-shadow .14s}.compose-entry:focus-within{border-color:#80bc94;box-shadow:0 0 0 1px #80bc9438}textarea{display:block;flex:1;min-width:0;width:100%;height:52px;resize:none;border:0;background:transparent;padding:8px 7px;line-height:1.55;color:#252525;font-size:15px}textarea::placeholder{color:#aaa}.send-button{flex-shrink:0;align-self:flex-end;min-width:70px;height:36px;margin:0 0 1px;background:#168747;border:0;border-radius:4px;color:#fff;font-size:13px;font-weight:550;transition:background-color .14s}.send-button:hover:not(:disabled){background:#106e39}.send-button:disabled{color:#fff;background:#b3cabc}.composer-bottom{display:flex;align-items:center;gap:14px;min-height:22px;padding-top:6px;color:#959595;font-size:10px}.composer-bottom>[data-role=status]{flex:1;min-width:0;overflow-wrap:anywhere}.composer-bottom>.error{color:#b44141}.send-hint{font-size:10px;white-space:nowrap;color:#979797}.message-count{font-variant-numeric:tabular-nums;font-size:10px;color:#aaa}.latest-button{position:absolute;right:22px;bottom:167px;border:1px solid #d1ded4;border-radius:18px;background:#fff;color:#27774a;padding:8px 13px;box-shadow:0 2px 8px #0000000d;font-size:12px}.storage-note{flex-shrink:0;text-align:center;margin:9px 0;font-size:10px;color:#929292;padding-bottom:env(safe-area-inset-bottom,0)}
@media(min-width:1100px){.chat-page{padding-top:16px;padding-bottom:8px}.page-header{min-height:68px}}
@media(max-width:600px){:root{background:#ededed}.chat-page{padding:0 10px}.page-header{min-height:60px;gap:14px}.brand{font-size:24px}.page-title{border:0;padding:0}.page-title h1{font-size:14px;color:#626262;font-weight:500}.page-title>span{display:none}.back-home{font-size:11px;padding-left:0}.chat-tabs{min-height:47px;border-radius:6px 6px 0 0}.chat-tabs a{padding:13px 1px;font-size:12px;gap:3px}.chat-tabs a[aria-current=page]:after{width:28px;height:2px}.announcement{font-size:11px;padding:8px 12px;max-height:62px}.connection-bar{padding:7px 12px;font-size:10px;min-height:29px}.chat-list{padding:14px 12px 20px}.chat-message{gap:10px;margin-bottom:18px}.avatar{width:36px;height:36px;flex-basis:36px}.avatar:before{left:12px;top:6px}.avatar:after{left:6px;width:24px;bottom:2px}.message-main{max-width:calc(100% - 54px)}.message-meta{gap:7px;font-size:11px;flex-wrap:wrap;row-gap:1px}.message-meta time{font-size:9px}.bubble{font-size:15px;padding:9px 11px;line-height:1.65}.composer{padding:9px 11px 8px}.composer-toolbar{gap:7px;margin-bottom:7px;min-height:29px}.nickname-label{font-size:11px;gap:6px}.nickname-label input{font-size:16px;width:105px;max-width:34vw;padding:3px 7px}.nick-policy{display:none}.emoji-button{font-size:13px}.compose-entry{gap:6px;padding:5px}textarea{font-size:16px;height:46px;padding:6px}.send-button{min-width:58px;height:34px;font-size:12px}.composer-bottom{gap:8px;padding-top:5px;min-height:19px}.send-hint{font-size:9px}.latest-button{bottom:150px;right:14px}.storage-note{margin:7px 0}.chat-shell{border-radius:0 0 6px 6px}}
@media(max-width:360px){.page-title{display:none}.send-hint{display:none}.chat-page{padding:0 8px}.chat-tabs a{font-size:11px}.message-main{max-width:calc(100% - 49px)}}
@media(max-height:580px){.chat-page{padding-top:0;min-height:330px}.page-header{min-height:43px}.chat-tabs{min-height:35px}.chat-tabs a{padding:8px 2px}.announcement{max-height:38px;padding-top:5px;padding-bottom:5px}.connection-bar{min-height:25px;padding-top:4px;padding-bottom:4px}.chat-shell{min-height:160px}.composer{padding-top:6px;padding-bottom:5px}.composer-toolbar{margin-bottom:5px}.compose-entry textarea{height:38px}.storage-note{margin:4px 0}.send-hint{display:none}.latest-button{bottom:132px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* Colorful group identity, self-hosted profile images and quiet chat decorations. */
:root{background:#e7f2ec;color:#263a30;--green:#168755;--line:#d8e8de}
body{background:radial-gradient(ellipse at 8% 0%,#d9ede0 0,transparent 46%),radial-gradient(ellipse at 94% 100%,#f5eddb 0,transparent 46%);background-attachment:fixed}
.page-header{min-height:64px}.page-title{border-color:#bed8c8}.page-title>span{color:#587365;font-size:13px}.back-home{color:#4e6f5b}
.chat-tabs{background:#fff;border-color:#c9dfd1;border-radius:14px 14px 0 0;min-height:52px}.chat-tabs a[aria-current=page]{background:#e0f3e6;color:#167847}.chat-tabs a:hover{background:#edf7f0}
.chat-shell{border-color:#c9dfd1;border-radius:0 0 14px 14px;background:#edf3ee;box-shadow:0 12px 36px #2947330d}
.group-header{position:relative;display:flex;align-items:center;gap:14px;flex-shrink:0;min-height:88px;padding:14px 22px;background:#dceddf;border-bottom:1px solid #cfe1d3;overflow:hidden}
.group-avatar{position:relative;z-index:1;width:58px;height:58px;flex:none;display:grid;grid-template-columns:1fr 1fr;gap:2px;padding:3px;background:#fff;border-radius:12px;box-shadow:0 3px 9px #40765317;overflow:hidden}
.group-avatar img{width:100%;height:100%;display:block;object-fit:cover;border-radius:3px}
.group-info{position:relative;z-index:1;min-width:0}.group-info h1{font-size:19px;font-weight:650;letter-spacing:.3px;margin:0 0 4px;color:#274d37}
.connection-bar{padding:0;min-height:22px;background:transparent;font-size:11px;color:#557562;gap:6px}.status-dot{width:6px;height:6px;box-shadow:0 0 0 3px #ffffff70}
.group-decoration{position:absolute;right:23px;top:12px;width:132px;height:64px;pointer-events:none}.decor-bubble{position:absolute;top:0;left:0;width:62px;height:43px;background:#fff9;border:1px solid #fff;border-radius:16px;text-align:center;font-size:31px;line-height:24px;letter-spacing:4px;color:#5caa80;transform:rotate(-10deg)}.decor-bubble:after{content:"";position:absolute;bottom:-5px;left:13px;width:11px;height:11px;background:#f2faf5;transform:rotate(32deg)}.decor-bubble.small{width:47px;height:35px;top:26px;left:49px;font-size:24px;line-height:31px;color:#e89a75;background:#fff2d7;border:1px solid #fff8e6;transform:rotate(9deg)}.decor-bubble.small:after{background:#fff2d7;left:auto;right:10px;width:8px;height:8px;bottom:-3px}.decor-spark{position:absolute;right:9px;top:5px;color:#e1b36c;font-size:20px;font-style:normal}
.announcement{background:#fafbf7;color:#697661;border-color:#e2e9dc;padding:9px 20px}.announcement:before{content:"✦";color:#be9c54;display:inline-block;margin-right:7px}
.chat-list{background-image:radial-gradient(#608a7014 .7px,transparent .7px);background-size:18px 18px;padding-top:20px}
.avatar{width:44px;height:44px;flex:0 0 44px;border-radius:11px;background:#e5eae5;object-fit:cover;box-shadow:0 2px 5px #274a3221;outline:2px solid #fff9;outline-offset:0}.avatar:before,.avatar:after{content:none}.own .avatar{background:#e5eae5!important}
.chat-message{gap:12px;margin-bottom:22px}.message-meta strong{font-weight:550;color:#4d6656}.message-meta time{color:#819085}.bubble{border:1px solid #dee8df;border-radius:4px 13px 13px 13px;box-shadow:0 2px 3px #344d3305}.bubble:before{border-color:#dee8df}.own .bubble{background:#a0e878;border-color:#a0e878;border-radius:13px 4px 13px 13px}
.composer{background:#fafcf9;border-color:#d8e5da}.composer-avatar{width:30px;height:30px;border-radius:8px;object-fit:cover;flex:none}.composer-toolbar{gap:9px}.compose-entry{border-color:#d2e0d4;border-radius:10px}.send-button{border-radius:7px;background:#178750}.send-button:disabled{background:#abcbb6;color:#fff}.emoji-button{color:#52715a}.nickname-label input{border-color:#d6e2d7}.storage-note{color:#7c9183}
@media(max-width:600px){:root{background:#e7f2ec}.chat-page{padding:0 9px}.page-header{min-height:54px}.page-title{display:none}.chat-tabs{min-height:47px;border-radius:12px 12px 0 0}.chat-shell{border-radius:0 0 12px 12px}.group-header{padding:11px 12px;gap:10px;min-height:77px}.group-avatar{width:50px;height:50px;padding:2px;gap:2px;border-radius:10px}.group-info h1{font-size:15px;letter-spacing:0;margin-bottom:3px}.connection-bar{font-size:10px;min-height:19px}.group-decoration{right:8px;top:14px;transform:scale(.65);transform-origin:top right;width:109px;opacity:.8}.group-info{padding-right:30px}.announcement{padding:8px 11px;font-size:11px;max-height:62px}.chat-list{padding:16px 12px 20px}.avatar{width:40px;height:40px;flex-basis:40px;border-radius:10px}.chat-message{gap:10px;margin-bottom:20px}.message-main{max-width:calc(100% - 54px)}.message-meta{gap:6px}.composer{padding:8px 10px}.composer-avatar{width:27px;height:27px;border-radius:7px}.nickname-label{gap:4px}.nickname-label input{max-width:30vw;width:98px}.composer-toolbar{gap:7px}}
@media(max-width:360px){.group-header{gap:9px}.group-info h1{font-size:13px}.group-decoration{opacity:.55;right:2px}.group-info{padding-right:0}.composer-toolbar{gap:5px}.nickname-label input{width:90px}.chat-tabs a{font-size:11px}}
@media(max-height:580px){.page-header{min-height:39px}.chat-tabs{min-height:35px}.group-header{min-height:42px;padding:4px 12px;gap:9px}.group-avatar{width:32px;height:32px;border-radius:6px;padding:2px;gap:1px}.group-avatar img{border-radius:1px}.group-info{display:flex;align-items:center;gap:12px;padding:0}.group-info h1{font-size:12px;margin:0}.connection-bar{font-size:9px;min-height:18px}.group-decoration{display:none}.announcement{max-height:32px;padding-top:4px;padding-bottom:4px}.composer-avatar{width:24px;height:24px}.composer{padding-top:5px;padding-bottom:4px}.composer-toolbar{min-height:25px;margin-bottom:4px}.compose-entry textarea{height:34px}.chat-list{padding-top:10px}.storage-note{margin:3px 0}}

/* Quiet community palette: warm gray surfaces, ink text, muted blue accent. */
:root{background:#f4f5f6;color:#29343d;--green:#567185;--line:#dce2e6}
body{background:#f4f5f6}
.brand{color:#30495d}.brand span{color:#5d6d79}
.page-title{border-color:#dce2e6}.page-title>span,.back-home{color:#637381}
.chat-tabs{border-color:#dce2e6;background:#fff}
.chat-tabs a{color:#53606b}.chat-tabs a[aria-current=page]{background:#e9eef1;color:#3d5c72}
.chat-tabs a[aria-current=page]:after{background:#738d9e}.chat-tabs a:hover{background:#f2f5f6}
.chat-shell{border-color:#dce2e6;background:#f4f6f7;box-shadow:0 12px 32px #2837440c}
.group-header{background:#e9edf0;border-color:#dce2e6}
.group-avatar{background:#fff;box-shadow:0 2px 7px #29394612}
.group-info h1{color:#2f3f4b}.connection-bar{color:#657782}
.chat-shell[data-connected=true] .status-dot{background:#7c9c90}
.decor-bubble{color:#8498a7;background:#ffffffb8;border-color:#fff}
.decor-bubble:after{background:#f7f9fa}
.decor-bubble.small{color:#889ba7;background:#f8f9f9;border-color:#fff}
.decor-bubble.small:after{background:#f8f9f9}.decor-spark{color:#a5b2bc}
.announcement{background:#fafaf9;border-color:#e7e7e3;color:#67727a}
.announcement:before{color:#a9b4bd}
.chat-list{background:#f4f6f7;background-image:none}
.avatar{background:#f7f6f2;box-shadow:0 1px 4px #34445118;outline:2px solid #fff}
.own .avatar{background:#f7f6f2!important}
.message-meta strong{color:#4b5964}.message-meta time{color:#85909a}
.bubble{background:#fff;color:#26313a;border-color:#e0e5e8;box-shadow:0 2px 4px #34445108}
.bubble:before{border-color:#e0e5e8}
.own .bubble{background:#e4ebef;border-color:#d8e2e8;color:#253542}
.composer{background:#fbfbfa;border-color:#dce2e6}
.nickname-label input{border-color:#dce2e6}.emoji-button{color:#596e7c}
.compose-entry{border-color:#d5dde2}.compose-entry:focus-within{border-color:#8da3b2;box-shadow:0 0 0 1px #8da3b233}
.send-button{background:#567185}.send-button:hover:not(:disabled){background:#435f74}
.send-button:disabled{background:#bdcbd4;color:#fff}
.latest-button{border-color:#d2dde3;color:#567185}
.storage-note{color:#82909a}
@media(max-width:600px){:root{background:#f4f5f6}}