:root{--ink:#111214;--muted:#777b82;--line:rgba(15,18,22,.08);--surface:rgba(255,255,255,.72);--white:#fff;--accent:#111;--blue:#5168f4;--green:#30c277;--danger:#ff4b55;--shadow:0 18px 55px rgba(25,28,34,.09);--radius:28px;--safe-bottom:env(safe-area-inset-bottom,0px)}
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@media(max-width:1050px){.app-shell{grid-template-columns:78px 310px minmax(0,1fr)}.feature-grid{grid-template-columns:repeat(2,1fr)}.stats{grid-template-columns:repeat(3,1fr)}}
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@media(max-width:390px){.feature-grid,.settings-list{grid-template-columns:1fr}.chat-identity .avatar{display:none}.chat-header{padding:0 7px}.header-actions{gap:2px}.header-actions .icon-btn{width:34px;height:34px}.chat-identity h2{max-width:31vw}.composer-tools{justify-content:space-around}}
.call-media{position:absolute;z-index:0;inset:16px;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:10px;overflow:auto}.call-media:empty{pointer-events:none}.call-overlay>:not(.call-media){position:relative;z-index:2}.call-media video{width:100%;height:100%;min-height:180px;object-fit:cover;border-radius:24px;background:#222}.call-media audio{display:none}.call-media:not(:empty)~.call-orb{display:none}
.booting .app-shell{visibility:hidden}.boot-screen{position:fixed;z-index:100;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:#f3f3f0;color:var(--muted)}.boot-screen i{font-size:28px;color:#111}.boot-screen strong{font-size:18px;color:#111}.boot-screen button{border:0;border-radius:12px;background:#111;color:#fff;padding:10px 18px;cursor:pointer}.avatar img,.profile-avatar img{width:100%;height:100%;object-fit:cover;border-radius:inherit}.empty-state{display:flex;min-height:180px;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:var(--muted);padding:25px}.empty-state>i{font-size:30px;color:#bbb;margin-bottom:10px}.empty-state h3{margin:4px 0;color:var(--ink)}.empty-state p{margin:3px 0;font-size:12px}.sidebar-tip{margin:8px;padding:18px;border-radius:18px;background:rgba(255,255,255,.7);color:var(--muted);font-size:12px}.sidebar-tip i{font-size:18px}.request-section{margin:0 0 20px;padding:18px;border-radius:22px;background:rgba(255,255,255,.66);border:1px solid rgba(255,255,255,.8)}.request-section>h3{margin:0 0 10px;font-size:15px}.secondary-btn{border:1px solid var(--line);border-radius:14px;background:#fff;padding:10px 15px;cursor:pointer}.compact{padding:7px 11px;border-radius:10px;font-size:11px}.search-results{margin-top:14px}.loading-text{text-align:center;color:var(--muted);padding:18px}.profile-editor{display:grid;gap:14px}.profile-editor label{display:grid;gap:6px;font-size:12px;color:var(--muted)}.profile-editor input,.profile-editor textarea,.modal-textarea{width:100%;border:1px solid var(--line);border-radius:14px;background:#fff;padding:12px;outline:none}.profile-editor textarea,.modal-textarea{min-height:100px;resize:vertical}.avatar-picker{justify-self:center;border:0;background:transparent;cursor:pointer}.avatar-picker .avatar{width:82px;height:82px;border-radius:28px;margin:auto}.avatar-picker span{display:block;margin-top:8px;font-size:11px;color:var(--muted)}.moment-media img{width:100%;height:180px;object-fit:cover;border-radius:17px}.moment-comments{margin-top:10px;padding:10px 12px;border-radius:12px;background:#f3f3f1;font-size:12px}.moment-comments p{margin:5px 0}.me-profile .primary-btn{background:#fff;color:#111}.setting-card{width:100%;text-align:left}.status-pill{white-space:nowrap}.contact-row input[type=checkbox]{width:18px;height:18px}.file-bubble a{color:inherit}.image-bubble img,.image-bubble video{display:block;max-width:320px;max-height:270px;border-radius:16px}.announcement.hidden{display:none}
.recording-indicator{position:fixed;z-index:80;left:50%;bottom:110px;transform:translateX(-50%);display:flex;min-width:210px;flex-direction:column;align-items:center;gap:6px;padding:18px 24px;border-radius:22px;background:rgba(18,19,22,.92);color:#fff;box-shadow:0 20px 50px rgba(0,0,0,.25);pointer-events:none}.recording-indicator i{font-size:27px;color:#66dfa0;animation:pulseMic 1s infinite}.recording-indicator span{font-size:11px;color:#b8bbc0}.recording-indicator.cancel i{color:#ff5b65}.recording-indicator.cancel span{color:#ff9ca2}.voice-audio{padding:8px 10px}.voice-audio>button{display:flex;align-items:center;gap:9px;min-width:150px;border:0;background:transparent;color:inherit;cursor:pointer;text-align:left}.voice-audio em{font-size:11px;font-style:normal;opacity:.7}.voice-audio audio{display:none}.voice-bars{display:flex;align-items:center;gap:2px;flex:1;height:20px}.voice-bars b{width:3px;border-radius:2px;background:currentColor;opacity:.7}.voice-bars b:nth-child(1){height:7px}.voice-bars b:nth-child(2){height:15px}.voice-bars b:nth-child(3){height:10px}.voice-bars b:nth-child(4){height:18px}.voice-bars b:nth-child(5){height:8px}@keyframes pulseMic{50%{transform:scale(1.18);opacity:.7}}
.wechat-input-row{display:flex;align-items:flex-end;gap:8px}.wechat-input-row textarea{flex:1;min-width:0;min-height:38px;max-height:100px;resize:none;border:0;border-radius:10px;outline:0;background:#fff;padding:9px 11px;line-height:20px}.composer-round{flex:0 0 auto;width:38px;height:38px;border:0;border-radius:50%;background:transparent;font-size:22px;cursor:pointer}.composer-round:hover{background:#ececea}.voice-hold{flex:1;height:38px;border:1px solid var(--line);border-radius:10px;background:#fff;font-weight:600;cursor:pointer;touch-action:none;user-select:none;-webkit-user-select:none}.voice-hold.active{background:#d9d9d6}.plus-panel{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;padding:16px 4px 4px;border-top:1px solid var(--line);margin-top:10px}.plus-panel button{border:0;background:transparent;display:flex;flex-direction:column;align-items:center;gap:7px;color:var(--muted);cursor:pointer}.plus-panel button i{display:grid;place-items:center;width:52px;height:52px;border-radius:15px;background:#fff;color:#34363a;font-size:21px;border:1px solid var(--line)}.plus-panel button span{font-size:11px}.plus-panel button.active i{background:#fff0ea;color:#ef6c46}.message-image{display:block;padding:0;border:0;background:transparent;cursor:pointer}.message-image img{display:block;max-width:min(280px,68vw);max-height:320px;object-fit:cover;border-radius:15px}.message-image.load-failed{width:180px;height:90px;background:#ececea;color:var(--muted)}.media-error{color:var(--danger)}.image-preview{display:block;max-width:100%;max-height:75vh;margin:auto;border-radius:14px}.incoming-actions button{width:72px;height:72px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}.incoming-actions button span{font-size:11px}.incoming-actions .reject{background:var(--danger)}.incoming-actions .accept{background:var(--green)}.incoming-actions .reject i{transform:rotate(135deg)}
@media(max-width:760px){.composer{background:#f5f5f3;border-color:#e7e7e4;box-shadow:0 -5px 18px rgba(0,0,0,.04)}.wechat-input-row{align-items:center;gap:5px}.composer-round{width:36px;height:36px;font-size:21px}.send-btn{flex:0 0 auto;background:#08c160}.plus-panel{grid-template-columns:repeat(4,1fr);padding:14px 2px 7px}.plus-panel button i{width:50px;height:50px}.recording-indicator{bottom:120px}}
.moment-picker{display:flex;align-items:center;gap:9px;margin-top:12px;padding:12px;border:1px dashed #c9cbc8;border-radius:14px;background:#fff;cursor:pointer;color:var(--muted);font-size:12px}.moment-draft-preview{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-top:10px}.moment-draft-preview img{width:100%;height:95px;object-fit:cover;border-radius:11px}