:root{--app-height:100dvh;--keyboard-offset:0px;--safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);--composer-bottom-gap:clamp(6px, calc(var(--safe-bottom) - 26px), 12px);--composer-drawer-bottom-gap:max(2px, calc(var(--composer-bottom-gap) - 4px));--accent:#1aad19;--accent-dark:#129611;--button-text:#fff;--wechat-green:var(--accent);--wechat-green-dark:var(--accent-dark);--bg:#ededed;--chat-bg:#ededed;--panel:#f7f7f7;--line:#d9d9d9;--text:#111;--muted:#7b7b7b;--bubble-other:#fff;--bubble-other-text:#111;--bubble-mine:#95ec69;--bubble-mine-text:#111;--wallpaper-image:none;--wallpaper-size:cover;--wallpaper-repeat:no-repeat;--login-background-image:none;--login-background-size:cover;--login-background-repeat:no-repeat;--chat-wallpaper-overlay:var(--chat-bg);--message-wallpaper-overlay:var(--chat-bg);color:var(--text);-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%;touch-action:manipulation;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}.theme-wechat{--accent:#1aad19;--accent-dark:#129611;--button-text:#fff;--bg:#ededed;--chat-bg:#ededed;--panel:#f7f7f7;--line:#d9d9d9;--text:#111;--muted:#7b7b7b;--bubble-other:#fff;--bubble-other-text:#111;--bubble-mine:#95ec69;--bubble-mine-text:#111}.theme-jade{--accent:#0f8f72;--accent-dark:#0a6f5d;--button-text:#fff;--bg:#e8efed;--chat-bg:#edf4f1;--panel:#f7faf8;--line:#cfded9;--text:#13201d;--muted:#64756f;--bubble-other:#fff;--bubble-other-text:#13201d;--bubble-mine:#bfead8;--bubble-mine-text:#13201d}.theme-paper{--accent:#33658a;--accent-dark:#274c68;--button-text:#fff;--bg:#f1f0ea;--chat-bg:#f6f5ef;--panel:#fbfaf6;--line:#ddd8ca;--text:#202124;--muted:#6f6a61;--bubble-other:#fff;--bubble-other-text:#202124;--bubble-mine:#d7e7f3;--bubble-mine-text:#202124}.theme-night{--accent:#35a7ff;--accent-dark:#1e7ec4;--button-text:#07131f;--bg:#171b20;--chat-bg:#1d232a;--panel:#222932;--line:#3a4450;--text:#f5f7fa;--muted:#a8b3bf;--bubble-other:#2c343e;--bubble-other-text:#f5f7fa;--bubble-mine:#245d82;--bubble-mine-text:#fff}*{box-sizing:border-box}html,body,#app{background:var(--bg);width:100%;height:100%;margin:0;overflow:hidden}body{overscroll-behavior:none;-webkit-user-select:none;user-select:none;position:fixed;inset:0}button,input,textarea{font:inherit}input,textarea{font-size:16px}button{color:inherit;background:0 0;border:0}.hidden{display:none}.login-shell{min-height:var(--app-height);padding:calc(var(--safe-top) + 32px) 18px calc(var(--safe-bottom) + 32px);background:var(--login-background-image) center / var(--login-background-size) var(--login-background-repeat), var(--bg);place-items:center;display:grid}.login-shell.login-position-top{place-items:start center}.login-shell.login-position-bottom{place-items:end center}.login-panel{text-align:center;gap:16px;width:min(360px,100%);display:grid}.login-mark{color:#fff;background:var(--wechat-green);border-radius:18px;place-items:center;width:72px;height:72px;margin:0 auto;font-size:34px;font-weight:800;display:grid;overflow:hidden}.login-mark img{object-fit:cover;width:100%;height:100%}.login-mark span{overflow-wrap:anywhere}.login-panel h1{overflow-wrap:anywhere;margin:0;font-size:24px}.login-panel p{color:var(--muted);overflow-wrap:anywhere;margin:-8px 0 8px}.login-panel form,.form-grid{gap:10px;display:grid}.login-panel form{width:min(300px,100%);margin:0 auto}.login-mode-btn{justify-self:center}.login-panel input,.form-grid input,.form-grid select,.form-grid textarea{border:1px solid var(--line);background:#fff;border-radius:6px;width:100%;padding:12px}.primary-btn,.send-btn,.mini-btn{background:var(--wechat-green);min-height:40px;color:var(--button-text);border-radius:6px;justify-content:center;align-items:center;gap:6px;padding:0 14px;font-weight:700;display:inline-flex}.mini-btn:disabled{opacity:.42}.primary-btn:active,.send-btn:active,.mini-btn:active{background:var(--wechat-green-dark)}.send-btn:disabled{opacity:.42}.form-error{color:#b42318;font-size:14px}.app-shell{height:var(--app-height);background:var(--wallpaper-image) center / var(--wallpaper-size) var(--wallpaper-repeat), var(--bg);grid-template-rows:minmax(0,1fr);grid-template-columns:280px minmax(0,1fr) 260px;display:grid;position:fixed;inset:0;overflow:hidden}.app-shell.channels-collapsed{grid-template-columns:0 minmax(0,1fr) 260px}.app-shell.members-collapsed{grid-template-columns:280px minmax(0,1fr) 0}.app-shell.channels-collapsed.members-collapsed{grid-template-columns:0 minmax(0,1fr) 0}.version-refresh-banner{top:max(10px, calc(var(--safe-top) + 8px));z-index:45;border:1px solid color-mix(in srgb, var(--accent) 26%, var(--line));background:color-mix(in srgb, var(--panel) 94%, #fff 6%);border-radius:8px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:8px;width:min(520px,100vw - 24px);min-height:42px;padding:7px 8px 7px 12px;display:grid;position:fixed;left:50%;transform:translate(-50%);box-shadow:0 10px 28px #0f172a29}.version-refresh-banner span{text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:13px;font-weight:600;overflow:hidden}.channel-pane,.member-pane{background:var(--panel);border-right:1px solid var(--line);z-index:5;flex-direction:column;min-width:0;height:100%;min-height:0;display:flex;overflow:hidden}.channel-pane.collapsed,.member-pane.collapsed{opacity:0;pointer-events:none;border:0}.member-pane{border-right:0;border-left:1px solid var(--line)}.pane-head,.chat-head{border-bottom:1px solid var(--line);align-items:center;gap:10px;min-height:56px;padding:0 14px;display:flex}.chat-head{padding-top:var(--safe-top);min-height:calc(56px + var(--safe-top));background:color-mix(in srgb, var(--panel) 88%, transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);grid-row:1}.chat-title{text-align:center;flex:1;gap:1px;min-width:0;display:grid}.chat-title strong,.channel-row b{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.chat-title small,.channel-row small,.profile-row small,.file-card small{color:var(--muted);font-size:12px}.icon-btn{color:#333;border-radius:6px;flex:0 0 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var(--line);align-items:center;gap:10px;margin-top:auto;display:flex}.avatar{color:#263238;background:#cfd8dc;border-radius:6px;flex:0 0 38px;place-items:center;width:38px;height:38px;font-weight:700;display:grid;position:relative;overflow:hidden}.online-dot{border:2px solid var(--panel);background:#22c55e;border-radius:999px;width:10px;height:10px;position:absolute;bottom:-1px;right:-1px;box-shadow:0 0 0 1px #00000014}.message-row .online-dot{border-color:var(--chat-bg)}.avatar.bot{color:#1d4ed8;background:#dbeafe}.avatar img{object-fit:cover;width:100%;height:100%}.chat-pane{background:linear-gradient(var(--chat-wallpaper-overlay), var(--chat-wallpaper-overlay)), var(--wallpaper-image) center / var(--wallpaper-size) var(--wallpaper-repeat), var(--chat-bg);grid-template-rows:auto auto auto minmax(0,1fr) auto;min-width:0;height:100%;min-height:0;display:grid;overflow:hidden}.chat-pane>*{width:100%;min-width:0;max-width:100%}.top-notice-shell{background:color-mix(in srgb, var(--panel) 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small{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.top-notice-copy strong{color:var(--text);font-size:13px;line-height:1.2}.top-notice-copy small{color:var(--muted);font-size:12px}.top-notice-count{min-width:34px;color:var(--muted);text-align:center;font-variant-numeric:tabular-nums;background:#0000000d;border-radius:999px;padding:2px 7px;font-size:12px}.pin-card{color:#7a4b00;background:#fff7df;border-bottom:1px solid #ead9aa;grid-row:3;display:grid}.pin-card-head{text-align:left;align-items:center;gap:8px;min-height:38px;padding:8px 14px;display:flex}.pin-card-head span{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.pin-card-body{gap:8px;padding:0 14px 10px 38px;display:grid}.pin-card-body p{color:#4d3a15;white-space:pre-wrap;word-break:break-word;margin:0;line-height:1.55}.messages-scroll{background:var(--message-wallpaper-overlay);overscroll-behavior:contain;-webkit-overflow-scrolling:touch;height:100%;min-height:0;scroll-padding-bottom:calc(80px + var(--keyboard-offset));flex-direction:column;grid-row:4;padding:12px 16px 18px;display:flex;overflow:hidden auto}.messages-scroll:after{content:"";flex:1 0 0;min-height:0}.time-separator{color:#fff;background:#0000002e;border-radius:4px;width:fit-content;margin:14px auto;padding:3px 8px;font-size:12px}.message-row{align-items:flex-start;gap:9px;margin:8px 0;display:flex}.message-row.mine{flex-direction:row-reverse}.message-row.mention-alert .avatar:after{content:"@";border:2px solid var(--chat-bg);color:#fff;background:#f59e0b;border-radius:50%;place-items:center;width:17px;height:17px;font-size:11px;font-weight:800;line-height:1;display:grid;position:absolute;top:-5px;right:-4px;box-shadow:0 3px 8px #78350f3d}.message-row.mention-alert .bubble{animation:1.65s ease-in-out infinite mentionBubbleGlow}.message-row.mention-alert .bubble:after{content:"";pointer-events:none;border:1px solid #f59e0bc2;border-radius:9px;animation:1.65s ease-in-out infinite mentionBubbleRing;position:absolute;inset:-3px}.bubble-wrap{min-width:0;max-width:min(620px,72%)}.sender-line{color:#666;align-items:center;gap:6px;margin-bottom:3px;font-size:12px;display:flex}.message-row.mine .sender-line{justify-content:flex-end}.sender-line em{color:#1d4ed8;background:#dbeafe;border-radius:3px;padding:1px 4px;font-style:normal}.bubble{background:var(--bubble-other);color:var(--bubble-other-text);word-break:break-word;-webkit-user-select:text;user-select:text;border-radius:6px;padding:9px 11px;line-height:1.45;position:relative}.message-row.mine .bubble{background:var(--bubble-mine);color:var(--bubble-mine-text)}.prayer-bubble{color:#332518;background:#fffaf0;border:1px solid #ead7b8;width:min(430px,72vw);padding:0;overflow:hidden;box-shadow:0 4px 14px #5c3a1714}.message-row.mine .prayer-bubble{color:#203a24;background:#f0fbf1;border-color:#cce7d1}.message-effect-flash{animation:2.4s step-end infinite messageFlash}.message-effect-flash .reply-preview{color:inherit;background:#ffffff38;border-left-color:currentColor}.message-effect-shine .message-text{color:#0000;-webkit-text-fill-color:transparent;background:linear-gradient(105deg,#161616 0%,#4f4f4f 34%,#fff 46%,#d7b45b 52%,#fff 58%,#1c1c1c 72%,#161616 100%) 0 0/230% 100%;-webkit-background-clip:text;background-clip:text;animation:1.9s linear infinite messageShine}.theme-night .message-effect-shine .message-text{background-image:linear-gradient(105deg,#d7dde5 0%,#fff 38%,#f8d879 50%,#fff 62%,#b7c0cc 100%)}.message-effect-shake{transform-origin:50% 100%;animation:.34s ease-in-out infinite messageShake}.message-effect-fly{white-space:nowrap;animation:6.8s linear infinite 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small{color:#00000080;text-overflow:ellipsis;white-space:nowrap;grid-column:2;font-size:12px;overflow:hidden}.file-card>span:not(.generic-file-icon),.media-file-card>span:not(.media-file-icon){text-overflow:ellipsis;white-space:nowrap;min-width:0;font-weight:600;overflow:hidden}.file-card-icon{object-fit:contain;filter:drop-shadow(0 3px 4px #0000001f);width:38px;height:38px}.generic-file-icon,.media-file-icon{color:#334155;background:#00000014;border-radius:8px;place-items:center;width:38px;height:38px;display:grid}.media-file-card{width:min(330px,64vw);min-height:58px;color:inherit;text-align:left;grid-template-columns:42px minmax(0,1fr);align-items:center;gap:2px 10px;display:grid}.media-file-card small{color:#00000080;grid-column:2;font-size:12px}.audio-file-card .media-file-icon{color:#087d19;background:#1aad1929}.video-file-card .media-file-icon{color:#1f5477;background:#33658a29}.audio-card{align-items:center;gap:8px;width:min(360px,58vw);display:flex}.audio-card audio{width:100%;min-width:0;height:34px}.voice-card{grid-template-columns:34px minmax(104px,1fr) 42px;align-items:center;gap:7px;width:clamp(190px,36vw,260px);min-height:46px;display:grid;position:relative}.voice-play,.preview-play{color:#1f3320;background:#0000001f;border-radius:50%;place-items:center;width:32px;height:32px;display:grid}.message-row.mine .voice-play{background:#1f5c1c2e}.voice-card.playing .voice-play,.preview-play{color:#fff;background:#18b75b}.voice-waveform,.preview-waveform{align-items:center;gap:1.5px;min-width:0;height:34px;display:flex;overflow:hidden}.voice-bar{background:#25312680;border-radius:999px;flex:0 0 2px;width:2px;max-width:2px;min-height:7px;transition:height .12s,opacity .12s,background .12s}.voice-bar.active{background:#111}.voice-meta{color:#3e4b3f;font-variant-numeric:tabular-nums;justify-items:end;gap:1px;min-width:38px;font-size:12px;line-height:1.1;display:grid}.voice-meta 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var(--line);z-index:3;background:#f7f7f7;grid-row:5;gap:6px;display:grid;position:relative}.reply-bar{color:#555;background:#ececec;border-radius:6px;align-items:center;gap:6px;min-height:34px;margin-bottom:6px;padding:4px 6px;font-size:13px;display:flex}.reply-bar span{white-space:nowrap;text-overflow:ellipsis;flex:1;min-width:0;overflow:hidden}.text-btn{color:#0b7d0a;font-weight:700}.composer-input-shell{min-width:0;position:relative}.composer-main{align-items:flex-end;gap:6px;width:100%;min-width:0;display:flex}.composer-main.raised{align-items:center}.icon-btn.active{background:#00000014}.composer textarea{resize:none;background:#fff;border:0;border-radius:6px;flex:1;min-width:0;min-height:38px;max-height:110px;padding:8px 10px;line-height:22px}.composer-suggestion-menu{border:1px solid var(--line);z-index:7;background:#fff;border-radius:8px;gap:4px;max-height:min(320px,46vh);padding:6px;display:grid;position:absolute;bottom:calc(100% + 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