:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif;color:#161616;background:#ededed;font-size:15px}*{box-sizing:border-box}body{margin:0;min-height:100vh}button,input,textarea,select{font:inherit}button{cursor:pointer;border:0}.login-page{min-height:100vh;display:grid;place-items:center;padding:22px}.login-panel{width:min(100%,390px);text-align:center}.brand-mark{width:70px;height:70px;display:grid;place-items:center;margin:0 auto 15px;border-radius:18px;background:#09b86b;color:#fff;font-size:35px;font-weight:700}.login-panel h1{font-size:27px;margin:0}.login-panel>p{color:#777;margin:8px 0 26px}.login-panel form{display:grid;gap:16px;text-align:left;background:#fff;padding:22px;border-radius:8px;box-shadow:0 6px 22px #0000000d}.login-panel label{display:grid;gap:6px;font-size:13px;color:#5a5a5a}.login-panel input{height:43px;border:1px solid #ddd;border-radius:5px;padding:0 11px;outline-color:#09b86b}.login-panel form button{height:43px;background:#07c160;color:#fff;border-radius:5px}.login-panel small{color:#999;text-align:center;font-size:12px}.first-login{margin-top:16px;color:#888;font-size:12px;line-height:1.8}.first-login b{color:#555}.shell{height:100vh;max-width:1180px;margin:auto;background:#f7f7f7;display:grid;grid-template-columns:320px 1fr;box-shadow:0 0 26px #00000012}.sidebar{border-right:1px solid #d9d9d9;background:#f4f4f4;min-width:0;display:flex;flex-direction:column}.sidebar>header,.conversation-head{height:68px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #dedede}.my-profile{display:flex;align-items:center;gap:10px;min-width:0}.my-profile span,.row-text{display:grid;gap:3px;min-width:0}.my-profile b,.row-text b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.my-profile small,.row-text small{color:#888;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.avatar{width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;background:#51a8dd;color:#fff;border-radius:6px;font-size:17px;font-weight:500}.icon-btn{width:32px;height:32px;border-radius:5px;background:#e6e6e6;font-size:22px;color:#555}.chat-list{overflow:auto;padding:8px 0}.chat-list>p{color:#999;font-size:12px;margin:14px 16px 6px}.chat-list>p small{font-weight:400}.chat-row{width:100%;height:64px;background:transparent;display:flex;align-items:center;gap:11px;padding:0 16px;text-align:left}.chat-row:hover,.chat-row.selected{background:#e6e6e6}.online-dot{margin-left:auto;width:8px;height:8px;background:#06c755;border-radius:50%}.empty-list{color:#999;padding:12px 16px;font-size:13px}.sidebar footer{display:flex;gap:8px;padding:12px;margin-top:auto;border-top:1px solid #dedede}.sidebar footer button{background:transparent;color:#666;padding:6px 8px}.sidebar footer #admin-btn{color:#08a958}.conversation{min-width:0;display:flex;flex-direction:column}.conversation-head{justify-content:flex-start;gap:10px;background:#f7f7f7}.conversation-head div{display:grid;gap:3px}.conversation-head small{font-size:12px;color:#999}.back{display:none;font-size:30px;background:transparent;color:#555}.message-area{flex:1;overflow:auto;padding:24px max(4%,28px);background:#f7f7f7}.message{max-width:74%;display:grid;justify-items:start;gap:3px;margin:0 0 14px}.message div{padding:10px 12px;line-height:1.45;word-break:break-word;background:#fff;border-radius:4px}.message.mine{margin-left:auto;justify-items:end}.message.mine div{background:#95ec69}.message em{font-style:normal;font-size:12px;color:#999}.message time{font-size:10px;color:#aaa}.no-messages{height:100%;display:grid;place-items:center;color:#aaa}.composer{min-height:70px;padding:12px max(4%,28px);background:#f5f5f5;border-top:1px solid #ddd;display:flex;gap:10px;align-items:flex-end}.composer textarea{resize:none;min-height:38px;max-height:100px;flex:1;border:1px solid #ddd;border-radius:5px;padding:8px;outline-color:#09b86b}.composer button{height:38px;padding:0 15px;border-radius:5px;background:#07c160;color:#fff}.modal-bg{position:fixed;inset:0;background:#00000055;display:grid;place-items:center;padding:16px;z-index:10}.modal{width:min(100%,620px);max-height:min(760px,90vh);overflow:auto;background:#fff;border-radius:8px}.modal>header{height:54px;padding:0 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #eee}.modal>header button{font-size:25px;background:transparent;color:#777}.modal-content{padding:16px}.picker{display:grid;gap:6px}.picker button{display:flex;align-items:center;gap:10px;text-align:left;padding:8px;background:transparent;border-radius:5px}.picker button:hover{background:#f2f2f2}.picker span{display:grid;gap:3px}.picker small,.account-list small{color:#999;font-size:12px}.admin-tabs{display:flex;border-bottom:1px solid #eee;margin:-16px -16px 16px}.tab{background:transparent;padding:11px 18px}.tab.active{color:#07a657;border-bottom:2px solid #07c160}.create-user{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:18px}.create-user input,.create-user select,.create-group input{height:38px;border:1px solid #ddd;border-radius:4px;padding:0 9px;min-width:0}.create-user button,.create-group button{height:38px;background:#07c160;color:#fff;border-radius:4px}.account-list{display:grid;gap:4px}.account-list>div{display:flex;align-items:center;gap:9px;padding:8px 0;border-bottom:1px solid #f0f0f0}.account-list p{margin:0;display:grid;gap:2px;flex:1}.account-list .avatar{width:32px;height:32px;flex-basis:32px;font-size:14px}.status{padding:5px 9px;border-radius:4px;color:#fff;background:#e58b34}.status.paused{background:#08a95c}.create-group{display:grid;gap:14px}.create-group fieldset{border:1px solid #eee;display:flex;flex-wrap:wrap;gap:8px;padding:10px}.create-group legend{color:#888;font-size:13px}.create-group label{padding:5px;background:#f5f5f5;border-radius:3px;font-size:13px}.hint{color:#888;text-align:center}.toast{position:fixed;z-index:30;left:50%;bottom:30px;transform:translateX(-50%);max-width:calc(100vw - 30px);padding:10px 14px;background:#292929;color:#fff;border-radius:5px;box-shadow:0 3px 12px #0003}
@media(max-width:680px){.shell{display:block;height:100dvh}.sidebar{height:100dvh;border:0}.conversation{display:none;position:fixed;inset:0;z-index:3;height:100dvh}.conversation.open{display:flex}.back{display:block}.message-area{padding:18px 14px}.message{max-width:84%}.sidebar>header,.conversation-head{height:58px;padding:0 13px}.composer{padding:10px 12px;min-height:62px}.modal-bg{align-items:end;padding:0}.modal{width:100%;max-height:84dvh;border-radius:8px 8px 0 0}.create-user{grid-template-columns:1fr 1fr}.create-user button{grid-column:1 / -1}.login-page{align-items:start;padding-top:11vh}.login-panel form{padding:18px}.avatar{width:36px;height:36px;flex-basis:36px}}
.text-button{display:block;margin:14px auto 0;background:transparent;color:#079b55;padding:6px 12px;font-size:13px}.header-actions{display:flex;align-items:center;gap:6px}.header-actions .icon-btn{font-size:13px;padding:0 7px;width:auto;min-width:32px}.composer textarea{resize:vertical;min-height:38px;max-height:280px}.chat-row.default-group .row-text b{color:#c51f1f;font-size:17px;font-weight:700}.install-help .modal{width:min(100%,390px)}.install-help .modal-content{display:grid;gap:12px;line-height:1.65}.install-help .modal-content p{margin:0;color:#252525}.install-help .modal-content small{color:#777}.row-text{flex:1}.conversation-time{flex:0 0 auto;color:#999;font-size:11px;font-variant-numeric:tabular-nums;white-space:nowrap}.login-status{display:none;margin:0;color:#b22727;font-size:13px;line-height:1.45;text-align:center}.login-status.visible{display:block}.login-panel form button:disabled{opacity:.7;cursor:wait}
.announcement-editor{min-width:0}.announcement-editor input,.announcement-editor textarea{width:100%;min-width:0;border:1px solid #ddd;border-radius:4px;padding:9px;outline-color:#09b86b}.announcement-editor textarea{min-height:180px;resize:vertical;line-height:1.6}.announcement-editor>button{width:100%;height:40px;background:#07c160;color:#fff;border-radius:4px}.announcement-media-preview{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:8px}.announcement-media-preview>span{display:grid;grid-template-columns:1fr auto;gap:5px;align-items:center;min-width:0;padding:6px;border:1px solid #e4e4e4;border-radius:4px;background:#fafafa}.announcement-media-preview img,.announcement-media-preview video{grid-column:1 / -1;width:100%;aspect-ratio:16 / 9;object-fit:cover;background:#222;border-radius:3px}.announcement-media-preview b{min-width:0;overflow:hidden;color:#666;font-size:12px;text-overflow:ellipsis;white-space:nowrap}.announcement-media-preview button{padding:0 4px;background:transparent;color:#999;font-size:18px}.announcement-media-button,.announcement-thumbnail-button{width:fit-content;padding:8px 10px;background:#e7e7e7;border-radius:4px;color:#555;font-size:13px;cursor:pointer}.announcement-thumbnail-field{display:grid;gap:7px;padding:10px;border:1px solid #e4e4e4;border-radius:4px;background:#fafafa}.announcement-thumbnail-field>b{color:#555;font-size:13px}.announcement-thumbnail-field small{color:#888;font-size:12px;line-height:1.5}.announcement-thumbnail-preview>span{display:inline-flex;align-items:center;gap:8px;max-width:100%;padding:6px;border:1px solid #e4e4e4;border-radius:4px;background:#fff}.announcement-thumbnail-preview img{width:100px;height:62px;object-fit:cover;border-radius:3px;background:#222}.announcement-thumbnail-preview b{color:#555;font-size:12px}.announcement-thumbnail-preview button{padding:2px 6px;background:transparent;color:#999;font-size:18px}.announcement-admin-list>div{align-items:flex-start}.announcement-admin-list p{min-width:0;overflow:hidden}.announcement-admin-list p>b,.announcement-admin-list p>small{display:block;overflow:hidden;text-overflow:ellipsis}.announcement-admin-list p>small{line-height:1.45}.announcement-admin-list .row-actions{flex:0 0 auto;flex-wrap:wrap;justify-content:flex-end}
.header-actions .icon-btn.danger{color:#b22727}.header-actions .icon-btn:disabled{opacity:.55;cursor:wait}
.announcement-cleanup { display: grid; gap: 12px; min-width: 0; padding-bottom: env(safe-area-inset-bottom, 0px); }
.announcement-cleanup label { color: #555; font-size: 14px; }
.announcement-cleanup select { width: 100%; min-width: 0; min-height: 44px; padding: 8px; border: 1px solid #ccc; border-radius: 4px; background: #fff; color: #222; font-size: 16px; }
.announcement-cleanup p { margin: 0; line-height: 1.6; color: #555; overflow-wrap: anywhere; }
.announcement-cleanup .cleanup-status { color: #b22727; }
.cleanup-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 4px; }
.cleanup-actions button { min-height: 44px; padding: 8px; border-radius: 4px; background: #e7e7e7; color: #333; }
.cleanup-actions .cleanup-confirm { background: #b22727; color: #fff; }
.cleanup-actions button:disabled { opacity: .55; cursor: wait; }
.header-actions{flex-wrap:wrap;justify-content:flex-end}.header-actions .icon-btn{white-space:nowrap}
@media(max-width:680px){.header-actions{gap:4px}.header-actions .icon-btn{padding:0 5px;font-size:12px}}
@media(max-width:680px){.admin-tabs{overflow-x:auto;white-space:nowrap}.admin-tabs .tab{flex:0 0 auto;padding:10px 12px}.modal{max-height:calc(100dvh - 12px)}.modal-content{padding:14px}.announcement-admin-list>div{display:grid;grid-template-columns:minmax(0,1fr);gap:8px}.announcement-admin-list .row-actions{justify-content:flex-start}.announcement-editor textarea{min-height:150px}.announcement-media-preview{grid-template-columns:repeat(2,minmax(0,1fr))}.announcement-media-button,.announcement-thumbnail-button{width:100%;text-align:center}}
html { touch-action: manipulation; }
.header-actions .announcement-btn { min-width: 58px; height: 38px; padding: 0 12px; font-size: 16px; font-weight: 600; }
.header-actions .announcement-manage-btn { min-width: 78px; height: 38px; padding: 0 10px; color: #087f45; font-size: 13px; font-weight: 600; }
.sidebar > header { height: auto; min-height: 68px; flex: 0 0 auto; flex-wrap: wrap; gap: 8px; padding-top: 12px; padding-bottom: 12px; }
.sidebar > header .my-profile { max-width: 100%; }
.sidebar > header .header-actions { flex: 0 0 auto; flex-wrap: nowrap; margin-left: auto; }
.announcement-editor button:disabled { opacity: .55; cursor: wait; }
.announcement-upload-status { margin: 4px 0; font-size: 13px; color: #666; }
@media(max-width:680px){.header-actions .announcement-btn{min-width:54px;height:36px;padding:0 9px;font-size:15px}.header-actions .announcement-manage-btn{min-width:72px;height:36px;padding:0 7px;font-size:12px}}