*{margin:0;padding:0;box-sizing:border-box}:root{--wechat-green: #07C160;--wechat-green-dark: #06AD56;--wechat-bg: #EDEDED;--wechat-white: #FFFFFF;--wechat-text: #191919;--wechat-text-secondary: #888888;--wechat-text-light: #B2B2B2;--wechat-border: #E6E6E6;--wechat-red: #FA5151;--wechat-bubble-mine: #95EC69;--wechat-bubble-other: #FFFFFF;--wechat-tab-active: #07C160;--wechat-tab-inactive: #999999;--navbar-height: 44px;--tabbar-height: 56px;--safe-bottom: env(safe-area-inset-bottom, 0px)}html,body,#root{height:100%;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Microsoft YaHei,sans-serif;font-size:15px;color:var(--wechat-text);background:#000;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}.app-container{max-width:480px;margin:0 auto;height:100%;background:var(--wechat-bg);position:relative;overflow:hidden;box-shadow:0 0 40px #0000004d}.main-layout{height:100%;display:flex;flex-direction:column}.tab-content{flex:1;overflow:hidden;display:flex;flex-direction:column}.tab-bar{height:calc(var(--tabbar-height) + var(--safe-bottom));padding-bottom:var(--safe-bottom);background:#f7f7f7;border-top:.5px solid var(--wechat-border);display:flex;align-items:center;justify-content:space-around}.tab-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;cursor:pointer;padding:4px 0;min-width:60px}.tab-icon{width:24px;height:24px;position:relative;display:flex;align-items:center;justify-content:center}.tab-label{font-size:10px;color:var(--wechat-tab-inactive)}.tab-icon-wechat:before{content:"";width:16px;height:12px;border:1.5px solid var(--wechat-tab-inactive);border-radius:6px;position:absolute;left:2px;bottom:3px}.tab-icon-wechat:after{content:"";width:12px;height:9px;border:1.5px solid var(--wechat-tab-inactive);border-radius:5px;position:absolute;right:1px;top:3px;background:#fff}.active .tab-icon-wechat:before,.active .tab-icon-wechat:after{border-color:var(--wechat-green)}.tab-icon-contacts:before{content:"";width:7px;height:7px;border:1.5px solid var(--wechat-tab-inactive);border-radius:50%;position:absolute;left:4px;top:3px}.tab-icon-contacts:after{content:"";width:14px;height:10px;border:1.5px solid var(--wechat-tab-inactive);border-radius:6px 6px 4px 4px;position:absolute;left:5px;bottom:3px;border-top:none}.active .tab-icon-contacts:before,.active .tab-icon-contacts:after{border-color:var(--wechat-green)}.tab-icon-discover:before{content:"";width:16px;height:16px;border:1.5px solid var(--wechat-tab-inactive);border-radius:50%;position:absolute}.tab-icon-discover:after{content:"";width:1.5px;height:10px;background:var(--wechat-tab-inactive);position:absolute;top:8px}.active .tab-icon-discover:before{border-color:var(--wechat-green)}.active .tab-icon-discover:after{background:var(--wechat-green)}.tab-icon-profile:before{content:"";width:9px;height:9px;border:1.5px solid var(--wechat-tab-inactive);border-radius:50%;position:absolute;left:50%;transform:translate(-50%);top:2px}.tab-icon-profile:after{content:"";width:14px;height:9px;border:1.5px solid var(--wechat-tab-inactive);border-radius:8px 8px 3px 3px;position:absolute;left:50%;transform:translate(-50%);bottom:3px;border-top:none}.active .tab-icon-profile:before,.active .tab-icon-profile:after{border-color:var(--wechat-green)}.tab-item.active .tab-label{color:var(--wechat-tab-active)}.page-container{height:100%;display:flex;flex-direction:column;background:var(--wechat-bg)}.navbar{height:var(--navbar-height);background:var(--wechat-white);display:flex;align-items:center;justify-content:center;padding:0 16px;position:relative;border-bottom:.5px solid var(--wechat-border);flex-shrink:0}.navbar-title{font-size:17px;font-weight:500;color:var(--wechat-text)}.navbar-action{position:absolute;right:16px;background:none;border:none;font-size:20px;color:var(--wechat-text);cursor:pointer;padding:4px 8px}.content-scroll{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch}.search-bar{margin:8px 12px;height:32px;background:var(--wechat-bg);border-radius:6px;display:flex;align-items:center;justify-content:center;gap:6px}.search-icon{font-size:14px}.search-placeholder{font-size:14px;color:var(--wechat-text-light)}.chat-item{display:flex;align-items:center;padding:12px 16px;background:var(--wechat-white);cursor:pointer;border-bottom:.5px solid var(--wechat-border)}.chat-item:active{background:#ececec}.chat-avatar{width:48px;height:48px;border-radius:6px;background:var(--wechat-green);display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;font-weight:500;flex-shrink:0;margin-right:12px}.chat-item-info{flex:1;min-width:0}.chat-item-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.chat-item-name{font-size:16px;font-weight:400;color:var(--wechat-text)}.chat-item-time{font-size:12px;color:var(--wechat-text-light)}.chat-item-bottom{display:flex;justify-content:space-between;align-items:center}.chat-item-msg{font-size:13px;color:var(--wechat-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:200px}.chat-item-badge{background:var(--wechat-red);color:#fff;font-size:11px;min-width:18px;height:18px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 5px}.chat-page{height:100%;display:flex;flex-direction:column;background:var(--wechat-bg)}.chat-navbar{height:var(--navbar-height);background:var(--wechat-bg);display:flex;align-items:center;padding:0 12px;border-bottom:.5px solid var(--wechat-border);flex-shrink:0}.chat-back{background:none;border:none;font-size:18px;color:var(--wechat-text);cursor:pointer;padding:0 8px;width:40px;text-align:left}.chat-title{flex:1;text-align:center;font-size:17px;font-weight:500}.chat-more{background:none;border:none;font-size:18px;color:var(--wechat-text);cursor:pointer;padding:0 8px;width:40px;text-align:right;font-weight:700}.chat-messages{flex:1;overflow-y:auto;padding:8px 12px;-webkit-overflow-scrolling:touch}.msg-date{text-align:center;font-size:12px;color:var(--wechat-text-light);margin:12px 0 8px}.msg-row{display:flex;margin-bottom:16px;align-items:flex-start}.msg-mine{flex-direction:row;justify-content:flex-end}.msg-avatar{width:36px;height:36px;border-radius:4px;background:var(--wechat-green);display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px;flex-shrink:0}.msg-avatar.has-img{background:var(--wechat-border)}.msg-mine .msg-avatar{background:#4a90d9}.msg-mine .msg-avatar.has-img{background:var(--wechat-border)}.chat-avatar.has-img,.contact-avatar-sm.has-img,.moment-avatar.has-img{background-color:var(--wechat-border);color:transparent}.msg-bubble-wrapper{max-width:65%;margin:0 10px;position:relative}.msg-sender-name{font-size:11px;color:var(--wechat-text-secondary);margin-bottom:2px}.msg-text{padding:9px 12px;border-radius:4px;font-size:15px;line-height:1.5;word-break:break-word;white-space:pre-wrap;position:relative}.msg-other .msg-text{background:var(--wechat-bubble-other);border-radius:4px 12px 12px}.msg-other .msg-text:after{content:"";position:absolute;top:0;left:-6px;width:0;height:0;border:6px solid transparent;border-top-color:var(--wechat-bubble-other);border-right-color:var(--wechat-bubble-other)}.msg-mine .msg-text{background:var(--wechat-bubble-mine);border-radius:12px 4px 12px 12px}.msg-mine .msg-text:after{content:"";position:absolute;top:0;right:-6px;width:0;height:0;border:6px solid transparent;border-top-color:var(--wechat-bubble-mine);border-left-color:var(--wechat-bubble-mine)}.msg-image{max-width:180px;max-height:180px;border-radius:6px;cursor:pointer;display:block}.msg-other .msg-image{border-radius:4px 12px 12px}.msg-mine .msg-image{border-radius:12px 4px 12px 12px}.msg-voice{display:flex;align-items:center;padding:9px 12px;border-radius:4px;cursor:pointer;gap:6px;min-width:80px}.msg-other .msg-voice{background:var(--wechat-bubble-other);border-radius:4px 12px 12px}.msg-mine .msg-voice,.voice-mine{background:var(--wechat-bubble-mine);border-radius:12px 4px 12px 12px;flex-direction:row-reverse}.voice-play-icon{font-size:14px;flex-shrink:0}.voice-dur{font-size:13px;color:var(--wechat-text);flex-shrink:0}.voice-bars{display:flex;align-items:center;gap:2px;height:24px}.voice-bar{width:3px;background:var(--wechat-text);border-radius:2px;transition:background .2s}.voice-bar.playing{animation:voicePulse .6s ease-in-out infinite alternate}@keyframes voicePulse{0%{opacity:1}to{opacity:.2}}.msg-file{display:inline-block;padding:9px 12px;border-radius:8px;font-size:14px;color:var(--wechat-green);text-decoration:none;word-break:break-all;background:var(--wechat-bubble-other)}.msg-mine .msg-file{color:#000}.chat-input{display:flex;align-items:center;padding:6px 10px;background:#f7f7f7;border-top:.5px solid var(--wechat-border);gap:8px;flex-shrink:0;padding-bottom:calc(6px + var(--safe-bottom))}.input-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;font-size:22px;cursor:pointer;flex-shrink:0}.msg-input{flex:1;height:35px;border:none;background:#fff;border-radius:6px;padding:0 12px;font-size:15px;outline:none}.send-btn{height:35px;padding:0 18px;background:var(--wechat-green);color:#fff;border:none;border-radius:6px;font-size:15px;cursor:pointer;flex-shrink:0}.send-btn:active{background:var(--wechat-green-dark)}.voice-btn{width:36px;height:36px;border:none;background:none;font-size:24px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;-webkit-touch-callout:none}.record-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;max-width:480px;margin:0 auto}.record-box{background:#1e1e1ee6;border-radius:12px;padding:24px 40px;display:flex;flex-direction:column;align-items:center;gap:12px;min-width:160px}.record-box.record-cancel{background:#fa5151d9}.record-anim{width:60px;height:60px;display:flex;align-items:center;justify-content:center}.record-wave{width:6px;height:30px;background:var(--wechat-green);border-radius:3px;animation:waveAnim .8s ease-in-out infinite}@keyframes waveAnim{0%,to{height:15px}50%{height:35px}}.record-text{font-size:13px;color:#ccc}.record-box.record-cancel .record-text{color:#fff}.record-time{font-size:16px;font-weight:600;color:#fff}.contacts-section{background:var(--wechat-white)}.contact-row{display:flex;align-items:center;padding:10px 16px;background:var(--wechat-white);cursor:pointer;border-bottom:.5px solid var(--wechat-border)}.contact-row:active{background:#ececec}.contact-avatar-sm{width:40px;height:40px;border-radius:4px;background:var(--wechat-green);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;flex-shrink:0;margin-right:12px}.contact-avatar-sm.group-bg{background:#4a90d9}.contact-name-sm{font-size:16px}.letter-header{background:var(--wechat-bg);padding:4px 16px;font-size:13px;color:var(--wechat-text-secondary)}.letter-index{position:absolute;right:3px;top:50px;bottom:10px;display:flex;flex-direction:column;align-items:center;justify-content:space-around;padding:4px 0;z-index:10}.letter-dot{font-size:11px;padding:1px 4px;cursor:pointer}.letter-active{color:var(--wechat-green);font-weight:600}.letter-inactive{color:var(--wechat-text-light)}.section-group{margin-top:12px;background:var(--wechat-white);border-top:.5px solid var(--wechat-border);border-bottom:.5px solid var(--wechat-border)}.menu-item{display:flex;align-items:center;padding:14px 16px;cursor:pointer;border-bottom:.5px solid var(--wechat-border)}.menu-item:last-child{border-bottom:none}.menu-item:active{background:#ececec}.edit-field-input{border:none;text-align:right;font-size:15px;color:var(--wechat-text);background:transparent;outline:none;width:160px;padding:4px 0}.edit-field-input::placeholder{color:var(--wechat-text-light)}.menu-icon{font-size:20px;margin-right:12px;font-weight:300;color:var(--wechat-text-secondary)}.menu-icon .qr-icon{width:20px;height:20px;display:inline-block;vertical-align:middle}.menu-icon .qr-icon:before{width:20px;height:20px}.menu-label{flex:1;font-size:16px}.menu-arrow{color:var(--wechat-text-light);font-size:14px}.profile-header{background:var(--wechat-white);padding:24px 16px;display:flex;align-items:center;gap:16px;border-bottom:.5px solid var(--wechat-border)}.profile-avatar{width:60px;height:60px;border-radius:6px;background:var(--wechat-green);display:flex;align-items:center;justify-content:center;color:#fff;font-size:26px}.profile-name{font-size:18px;font-weight:500}.profile-id{font-size:13px;color:var(--wechat-text-secondary);margin-top:4px}.profile-qr-btn{width:32px;height:32px;cursor:pointer;padding:2px;margin-left:auto;border-radius:6px;background:none;border:none;align-self:flex-start;margin-top:4px;display:flex;align-items:center;justify-content:center}.profile-qr-btn:active{background:#f0f0f0}.qr-icon{width:22px;height:22px;position:relative;display:block}.qr-icon:before{content:"";position:absolute;left:3px;top:3px;width:4px;height:4px;border-radius:1px;background:var(--wechat-text-secondary);box-shadow:6px 0 0 var(--wechat-text-secondary),12px 0 0 var(--wechat-text-secondary),0 6px 0 var(--wechat-text-secondary),6px 6px 0 var(--wechat-text-secondary),12px 6px 0 var(--wechat-text-secondary),0 12px 0 var(--wechat-text-secondary),6px 12px 0 var(--wechat-text-secondary),12px 12px 0 var(--wechat-text-secondary)}.qr-icon:after{content:"";position:absolute;left:1px;top:1px;width:20px;height:20px;border-radius:1px}.logout-btn{width:100%;padding:14px;background:var(--wechat-white);border:none;font-size:16px;color:var(--wechat-red);cursor:pointer;text-align:center}.logout-btn:active{background:#ececec}.login-page{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--wechat-white);padding:40px 32px}.login-logo{width:80px;height:80px;background:var(--wechat-green);border-radius:18px;margin-bottom:28px;display:flex;align-items:center;justify-content:center;position:relative}.login-logo:before{content:"";width:28px;height:22px;border:3px solid #FFF;border-radius:11px;position:absolute;left:16px;bottom:18px}.login-logo:after{content:"";width:20px;height:16px;border:3px solid #FFF;border-radius:9px;position:absolute;right:14px;top:20px;background:var(--wechat-green)}.login-title{font-size:22px;font-weight:600;margin-bottom:6px;color:var(--wechat-text)}.login-subtitle{font-size:14px;color:var(--wechat-text-secondary);margin-bottom:36px}.login-form{width:100%}.form-input{width:100%;height:46px;border:1px solid var(--wechat-border);border-radius:8px;padding:0 14px;font-size:15px;margin-bottom:14px;outline:none;background:#f8f8f8;transition:border-color .2s}.form-input:focus{border-color:var(--wechat-green);background:#fff}.btn{width:100%;height:46px;border:none;border-radius:8px;font-size:16px;font-weight:500;cursor:pointer;transition:opacity .2s}.btn:active{opacity:.8}.btn-primary{background:var(--wechat-green);color:#fff}.btn-outline{background:transparent;color:var(--wechat-green);border:1px solid var(--wechat-green)}.btn-sm{width:auto;height:30px;padding:0 14px;font-size:13px;border-radius:6px}.toggle-mode{margin-top:14px;font-size:14px;color:var(--wechat-text-secondary);text-align:center}.toggle-mode span{color:var(--wechat-green);cursor:pointer}.add-friend-page,.create-group-page{height:100%;display:flex;flex-direction:column;background:var(--wechat-bg)}.search-section{padding:12px 16px;background:var(--wechat-white);border-bottom:.5px solid var(--wechat-border)}.search-results{flex:1;overflow-y:auto}.user-card{display:flex;align-items:center;padding:12px 16px;background:var(--wechat-white);border-bottom:.5px solid var(--wechat-border)}.member-select-item{display:flex;align-items:center;padding:10px 16px}.member-select-item input[type=checkbox]{margin-right:12px;width:18px;height:18px;accent-color:var(--wechat-green)}.group-input{width:100%;height:42px;border:1px solid var(--wechat-border);border-radius:8px;padding:0 14px;font-size:15px;margin-bottom:10px;outline:none}.empty-state{text-align:center;padding:80px 20px;color:var(--wechat-text-light);font-size:15px}.error-text{color:var(--wechat-red);font-size:13px;margin-bottom:10px}.context-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0006;display:flex;align-items:flex-end;justify-content:center;z-index:3000;max-width:480px;margin:0 auto;padding-bottom:calc(20px + var(--safe-bottom))}.context-menu-panel{background:#fff;border-radius:12px;padding:4px 0;width:calc(100% - 32px);box-shadow:0 -2px 20px #00000026}.context-menu-panel .context-item{padding:14px 24px;color:var(--wechat-text);font-size:17px;text-align:center;cursor:pointer;border-bottom:.5px solid var(--wechat-border)}.context-menu-panel .context-item:last-of-type{border-bottom:none}.context-menu-panel .context-item:active{background:#ececec}.context-menu-panel .context-cancel{border-top:6px solid var(--wechat-bg);color:var(--wechat-text-secondary);font-size:16px}.avatar-group{background:#4a90d9!important}.avatar-add{background:#f5a623!important;font-weight:700}.contact-detail{display:flex;flex-direction:column}.contact-meta{font-size:12px;color:var(--wechat-text-secondary);margin-top:2px}.navbar-back{position:absolute;left:8px;background:none;border:none;font-size:15px;color:var(--wechat-text);cursor:pointer;padding:4px 8px}.record-anim{display:flex;align-items:center;gap:3px}.record-wave2{width:6px;height:20px;background:var(--wechat-green);border-radius:3px;animation:waveAnim2 .6s ease-in-out infinite .2s}@keyframes waveAnim2{0%,to{height:10px}50%{height:28px}}.empty-chat{text-align:center;color:var(--wechat-text-light);font-size:14px;padding:120px 20px}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:3000;max-width:480px;margin:0 auto}.modal-card{background:#fff;border-radius:12px;padding:24px 20px;display:flex;flex-direction:column;align-items:center;max-width:90%;min-width:260px}.modal-title{font-size:17px;font-weight:500;margin-bottom:12px}.modal-footer{display:flex;gap:10px;margin-top:16px}.typing-indicator{display:inline-flex;align-items:center;gap:4px;padding:8px 14px;background:var(--wechat-bubble-other);border-radius:4px 12px 12px}.typing-dot{width:7px;height:7px;border-radius:50%;background:#999;animation:typingBounce 1.4s ease-in-out infinite}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typingBounce{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-6px);opacity:1}}.typing-label{font-size:11px;color:var(--wechat-text-secondary);margin-top:3px;margin-left:2px}.msg-system{text-align:center;font-size:12px;color:var(--wechat-text-light);margin:10px 0;padding:4px 0}.reply-bar{display:flex;align-items:center;padding:8px 14px;background:#f0f0f0;border-top:.5px solid var(--wechat-border);gap:8px}.reply-bar-content{flex:1;min-width:0}.reply-bar-label{font-size:12px;color:var(--wechat-green);font-weight:500}.reply-bar-text{font-size:13px;color:var(--wechat-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reply-bar-close{background:none;border:none;font-size:16px;color:var(--wechat-text-light);cursor:pointer;padding:4px}.msg-reply-preview{background:#0000000d;border-radius:4px;padding:6px 10px;margin-bottom:6px;border-left:3px solid var(--wechat-green);cursor:pointer}.reply-mine{background:#00000014}.msg-reply-name{font-size:12px;color:var(--wechat-green);margin-bottom:2px}.msg-reply-content{font-size:12px;color:var(--wechat-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.emoji-picker{display:flex;flex-wrap:wrap;gap:6px;padding:10px 12px;background:#f7f7f7;border-top:.5px solid var(--wechat-border);max-height:180px;overflow-y:auto;justify-content:center}.emoji-btn{width:40px;height:40px;font-size:24px;border:none;background:none;cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:6px;transition:background .15s}.emoji-btn:active{background:#dedede}.plus-panel{display:flex;flex-wrap:wrap;gap:0;padding:16px 8px;background:#f7f7f7;border-top:.5px solid var(--wechat-border)}.plus-item{width:25%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:12px 4px;border:none;background:none;cursor:pointer;border-radius:8px;font-size:13px;transition:background .15s;color:var(--wechat-text)}.plus-item:active{background:#dedede}.plus-icon{width:52px;height:52px;display:flex;align-items:center;justify-content:center;background:#fff;border-radius:12px;font-size:26px;border:.5px solid var(--wechat-border)}.plus-label{font-size:12px;color:var(--wechat-text-secondary)}.hold-to-talk{flex:1;height:35px;border:none;background:#fff;border-radius:6px;font-size:15px;color:var(--wechat-text);cursor:pointer;user-select:none;-webkit-user-select:none}.hold-to-talk:active{background:#dedede}.icon-mic{width:22px;height:22px;position:relative;display:flex;align-items:center;justify-content:center}.speaker-body{width:4px;height:10px;background:var(--wechat-text-secondary);border-radius:1px;position:absolute;left:3px;z-index:1}.speaker-cone{width:0;height:0;border-top:5px solid transparent;border-bottom:5px solid transparent;border-right:6px solid var(--wechat-text-secondary);position:absolute;left:6px;z-index:1}.speaker-wave1{width:2px;height:5px;background:var(--wechat-text-secondary);border-radius:1px;position:absolute;right:7px}.speaker-wave2{width:2px;height:9px;background:var(--wechat-text-secondary);border-radius:1px;position:absolute;right:3px}.icon-smile{width:24px;height:24px;position:relative;display:flex;align-items:center;justify-content:center}.smile-face{width:18px;height:18px;border:2px solid var(--wechat-text-secondary);border-radius:50%;position:relative}.smile-face:before{content:"";position:absolute;width:10px;height:5px;border-bottom:2px solid var(--wechat-text-secondary);border-radius:0 0 6px 6px;bottom:3px;left:50%;transform:translate(-50%)}.smile-face:after{content:"";position:absolute;width:3px;height:3px;background:var(--wechat-text-secondary);border-radius:50%;top:5px;box-shadow:7px 0 0 var(--wechat-text-secondary)}.icon-plus{width:20px;height:20px;position:relative;display:flex;align-items:center;justify-content:center}.plus-v{width:2px;height:16px;background:var(--wechat-text-secondary);border-radius:1px;position:absolute}.plus-h{width:16px;height:2px;background:var(--wechat-text-secondary);border-radius:1px;position:absolute}.video-call-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000;z-index:9999;display:flex;flex-direction:column;align-items:center;justify-content:center}.video-call-container{display:flex;flex-direction:column;align-items:center;width:100%;height:100%}.video-call-header{color:#fff;font-size:20px;font-weight:500;padding:60px 0 20px;text-align:center}.video-call-preview{width:100%;height:auto;max-height:calc(100vh - 200px);object-fit:cover;flex:1}.video-call-actions{position:fixed;bottom:50px;display:flex;gap:30px}.video-call-btn{width:60px;height:60px;border-radius:50%;border:none;font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#fff}.capture-btn{background:#ffffff40;width:auto;padding:0 24px;border-radius:30px}.end-btn{background:#ff3b30}.flip-btn{background:#ffffff40;width:auto;padding:0 16px;border-radius:30px}.photo-preview-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000;z-index:99999;display:flex;flex-direction:column;align-items:center;justify-content:center}.photo-preview-container{display:flex;flex-direction:column;align-items:center;width:100%;height:100%}.photo-preview-img{flex:1;width:100%;object-fit:contain}.photo-preview-actions{position:fixed;bottom:50px;display:flex;gap:40px}.photo-preview-btn{width:70px;height:44px;border-radius:22px;border:none;font-size:16px;cursor:pointer;color:#fff}.photo-preview-btn.send-btn{background:#07c160}.photo-preview-btn.cancel-btn{background:#ff3b30}.msg-time{text-align:center;padding:8px 0;color:#b0b0b0;font-size:12px}.mention-dropdown{position:absolute;bottom:100%;left:0;right:0;background:#fff;border-top:.5px solid var(--wechat-border);box-shadow:0 -2px 8px #00000014;max-height:200px;overflow-y:auto;z-index:50}.mention-item{display:flex;align-items:center;padding:10px 16px;cursor:pointer;gap:12px;border-bottom:.5px solid var(--wechat-border)}.mention-item:active{background:#ececec}.online-dot{color:var(--wechat-green);font-size:12px}.offline-dot{color:var(--wechat-text-light);font-size:11px}.chat-item-status{font-size:10px;color:var(--wechat-text-light);margin-top:1px}.star-item{display:flex;align-items:center;padding:14px 16px;border-bottom:.5px solid var(--wechat-border);cursor:pointer;gap:12px}.star-item:active{background:#ececec}.star-info{flex:1;min-width:0}.star-from{font-size:13px;font-weight:500}.star-content{font-size:13px;color:var(--wechat-text-secondary);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.star-time{font-size:11px;color:var(--wechat-text-light);margin-top:2px}.search-result-item{padding:14px 16px;border-bottom:.5px solid var(--wechat-border);cursor:pointer}.search-result-item:active{background:#ececec}.search-result-header{display:flex;justify-content:space-between;align-items:center}.search-result-time{font-size:12px;color:var(--wechat-text-light)}.search-result-body{font-size:14px;margin-top:4px;color:var(--wechat-text);line-height:1.4}.search-result-type{font-size:12px;color:var(--wechat-text-light);margin-top:2px}.profile-avatar{background-position:center;background-repeat:no-repeat}.avatar-group{background:var(--wechat-green)}.moment-card{background:#fff;margin:10px 0;padding:14px 16px}.moment-header{display:flex;align-items:flex-start;gap:10px;position:relative}.moment-avatar{width:42px;height:42px;border-radius:6px;background:var(--wechat-green);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:600;flex-shrink:0}.moment-user{flex:1}.moment-username{font-size:15px;font-weight:500;color:#576b95}.moment-time{font-size:12px;color:var(--wechat-text-light);margin-top:2px}.moment-delete{position:absolute;right:0;top:0;background:none;border:none;font-size:20px;color:var(--wechat-text-light);cursor:pointer}.moment-content{padding:8px 0 8px 52px;font-size:15px;line-height:1.5}.moment-images{display:grid;gap:4px;padding-left:52px;margin-bottom:8px}.moment-img{width:100%;height:100%;object-fit:cover;border-radius:3px;cursor:pointer}.images-1{grid-template-columns:1fr;max-width:240px}.images-2{grid-template-columns:1fr 1fr;max-width:240px}.images-3{grid-template-columns:1fr 1fr 1fr;max-width:240px}.images-4{grid-template-columns:1fr 1fr;max-width:240px}.images-5{grid-template-columns:1fr 1fr 1fr;max-width:240px}.images-1 .moment-img,.images-2 .moment-img,.images-3 .moment-img,.images-4 .moment-img,.images-5 .moment-img{aspect-ratio:1}.images-6,.images-7,.images-8,.images-9{grid-template-columns:1fr 1fr 1fr;max-width:240px}.moment-actions{display:flex;justify-content:space-between;padding:8px 0 0 52px;border-top:.5px solid #F0F0F0}.moment-action{font-size:13px;color:var(--wechat-text-light);cursor:pointer}.moment-likes{padding:6px 10px;margin-left:52px;background:#f7f7f7;border-radius:4px;font-size:13px;color:#576b95;margin-bottom:4px}.moment-like-icon{font-size:12px}.moment-comments{padding:6px 10px;margin-left:52px;background:#f7f7f7;border-radius:4px;margin-bottom:8px}.moment-comment-item{font-size:13px;line-height:1.5;padding:2px 0}.moment-comment-input{display:flex;padding:8px 10px 8px 52px;gap:8px}.moment-comment-input input{flex:1;border:.5px solid var(--wechat-border);border-radius:4px;padding:6px 10px;font-size:14px}.moment-comment-input button{background:var(--wechat-green);color:#fff;border:none;border-radius:4px;padding:6px 14px;font-size:14px;cursor:pointer}.compose-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:3000;max-width:480px;margin:0 auto}.compose-panel{background:#fff;border-radius:12px;padding:20px;width:calc(100% - 48px)}.compose-title{font-size:17px;font-weight:600;margin-bottom:14px;text-align:center}.compose-panel textarea{width:100%;border:.5px solid #DDD;border-radius:8px;padding:10px;font-size:15px;resize:none;margin-bottom:10px}.compose-add-img{display:inline-block;padding:20px 30px;border:1px dashed #CCC;border-radius:8px;color:var(--wechat-text-light);cursor:pointer;margin-bottom:10px}.compose-btns{display:flex;justify-content:flex-end;gap:10px;margin-top:12px}.redpacket-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:3000;max-width:480px;margin:0 auto}.redpacket-panel{background:#f44;color:#fff;border-radius:12px;padding:24px;width:calc(100% - 48px);text-align:center}.redpacket-header{font-size:18px;font-weight:600;margin-bottom:16px;color:gold}.redpacket-field{display:flex;align-items:center;gap:8px;margin-bottom:10px;background:#ffffff26;border-radius:6px;padding:8px 12px}.redpacket-field span{font-size:15px}.redpacket-field input{flex:1;border:none;background:transparent;font-size:16px;color:#fff;outline:none}.redpacket-field input::placeholder{color:#ffffff80}.redpacket-balance{font-size:13px;color:gold;margin-top:4px}.redpacket-received{padding:20px 0}.redpacket-icon-received{font-size:48px}.redpacket-result-amount{font-size:32px;font-weight:700;margin:12px 0}.redpacket-result{font-size:15px;color:gold}.wallet-balance-card{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:30px 20px;text-align:center}.wallet-label{font-size:14px;opacity:.8}.wallet-amount{font-size:36px;font-weight:700;margin-top:8px}.wallet-actions{display:flex;padding:24px 16px;gap:16px;flex-wrap:wrap}.wallet-action-item{display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px;background:#fff;border-radius:12px;cursor:pointer;min-width:90px;flex:1;box-shadow:0 1px 3px #0000000f}.wallet-action-icon{font-size:28px;font-weight:300}.scan-body{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:calc(100vh - 44px);padding:40px 0}.scan-area{display:flex;flex-direction:column;align-items:center}.scan-box{width:220px;height:220px;border:2px solid #00FF00;position:relative;overflow:hidden}.scan-line{position:absolute;top:0;left:0;right:0;height:2px;background:#0f0;animation:scanDown 2s infinite}@keyframes scanDown{0%{top:0}to{top:100%}}.scan-tabs{display:flex;gap:40px;margin-top:30px}.scan-tab{color:#fff9;font-size:14px;cursor:pointer}.scan-tab.active{color:#0f0}.scan-hint{color:#ffffff80;font-size:13px;margin-top:16px}.settings-group{margin-bottom:16px}.settings-item{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:#fff;cursor:pointer;border-bottom:.5px solid #F0F0F0;font-size:15px}.settings-item:active{background:#ececec}.toggle{width:46px;height:28px;border-radius:14px;background:#ccc;position:relative;cursor:pointer;transition:background .2s}.toggle-on{background:var(--wechat-green)}.toggle-knob{position:absolute;top:2px;left:2px;width:24px;height:24px;border-radius:50%;background:#fff;transition:left .2s;box-shadow:0 1px 3px #0003}.toggle-on .toggle-knob{left:20px}.invite-modal{max-height:70vh;display:flex;flex-direction:column}.invite-list{flex:1;overflow-y:auto;max-height:300px}.invite-check-item{display:flex;align-items:center;gap:10px;padding:10px 8px;cursor:pointer;border-bottom:.5px solid #F0F0F0}.invite-check-item:active{background:#f5f5f5}.invite-checkbox{width:22px;height:22px;border-radius:50%;border:2px solid #CCC;display:flex;align-items:center;justify-content:center;font-size:14px;color:#fff;flex-shrink:0}.invite-checkbox.checked{background:var(--wechat-green);border-color:var(--wechat-green)}.btn-sm-link{font-size:13px;color:var(--wechat-green);background:none;border:none;cursor:pointer;padding:0 4px;float:right}.btn-sm-danger{font-size:12px;color:var(--wechat-red);background:#fff;border:1px solid var(--wechat-red);border-radius:4px;cursor:pointer;padding:4px 10px;margin-left:8px}.btn-sm-danger:active{background:var(--wechat-red);color:#fff}.menu-right{font-size:18px;color:#ccc}.empty-text{color:var(--wechat-text-secondary);font-size:14px;padding:20px;text-align:center}.plus-menu-overlay{position:fixed;top:0;left:0;right:0;bottom:0;z-index:2000;max-width:480px;margin:0 auto}.plus-menu{position:absolute;top:50px;right:10px;background:#3c3c3c;border-radius:8px;padding:6px 0;min-width:140px;box-shadow:0 4px 12px #0000004d;animation:menuFadeIn .15s ease}@keyframes menuFadeIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.plus-menu:before{content:"";position:absolute;top:-6px;right:16px;width:0;height:0;border-left:6px solid transparent;border-right:6px solid transparent;border-bottom:6px solid #3C3C3C}.plus-menu-item{display:flex;align-items:center;gap:12px;padding:12px 16px;color:#fff;font-size:15px;cursor:pointer;white-space:nowrap}.plus-menu-item:active{background:#ffffff1a}.plus-menu-icon{font-size:18px;width:24px;text-align:center}.admin-login{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#f5f5f5}.admin-login form{background:#fff;padding:40px 30px;border-radius:12px;box-shadow:0 2px 12px #00000014;width:320px}.admin-login h2{text-align:center;margin-bottom:24px;color:#1890ff}.admin-login input{width:100%;padding:10px 12px;margin-bottom:12px;border:1px solid #D9D9D9;border-radius:6px;font-size:14px;box-sizing:border-box}.admin-login button{width:100%;padding:10px;background:#1890ff;color:#fff;border:none;border-radius:6px;font-size:15px;cursor:pointer}.admin-error{color:#ff4d4f;font-size:13px;margin-bottom:10px;text-align:center}.admin-page{min-height:100vh;background:#f0f2f5}.admin-header{display:flex;justify-content:space-between;align-items:center;padding:14px 24px;background:#001529;color:#fff}.admin-header h1{font-size:18px;font-weight:600}.admin-header button{background:#ff4d4f;color:#fff;border:none;padding:6px 16px;border-radius:4px;cursor:pointer}.admin-tabs{display:flex;gap:0;background:#fff;border-bottom:1px solid #E8E8E8;padding:0 24px}.admin-tabs button{padding:14px 20px;border:none;background:none;font-size:14px;color:#666;cursor:pointer;border-bottom:2px solid transparent;transition:all .2s}.admin-tabs button.active{color:#1890ff;border-bottom-color:#1890ff}.admin-tabs button:hover{color:#1890ff}.admin-content{padding:24px;max-width:1200px;margin:0 auto}.admin-cards{display:flex;gap:20px;flex-wrap:wrap}.admin-card{flex:1;min-width:160px;background:#fff;border-radius:8px;padding:24px;box-shadow:0 1px 4px #0000000f;display:flex;flex-direction:column;align-items:center;gap:8px}.admin-card b{font-size:32px;color:#1890ff}.admin-card span{font-size:14px;color:#999}.admin-table{width:100%;border-collapse:collapse;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 1px 4px #0000000f}.admin-table th{background:#fafafa;padding:12px 10px;font-size:13px;color:#666;text-align:left;border-bottom:1px solid #E8E8E8}.admin-table td{padding:10px;font-size:13px;border-bottom:1px solid #F0F0F0}.admin-table tr.banned{background:#fff2f0}.admin-table .red{color:#ff4d4f;font-weight:500}.admin-table .green{color:#52c41a;font-weight:500}.content-cell{max-width:240px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.btn-sm{padding:4px 12px;font-size:12px;border:1px solid #D9D9D9;border-radius:4px;background:#fff;cursor:pointer}.btn-sm:hover{border-color:#1890ff;color:#1890ff}.btn-sm.danger{color:#ff4d4f;border-color:#ff4d4f}.admin-moments{display:flex;flex-direction:column;gap:12px}.admin-moment-item{background:#fff;border-radius:8px;padding:16px;box-shadow:0 1px 4px #0000000f}.moment-info{display:flex;gap:16px;font-size:12px;color:#999;margin-bottom:8px}.admin-moment-item p{font-size:14px;color:#333;margin-bottom:8px}.moment-thumb{width:80px;height:80px;object-fit:cover;border-radius:4px;margin-right:6px}.admin-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000073;display:flex;align-items:center;justify-content:center;z-index:1000}.admin-modal{background:#fff;border-radius:10px;padding:24px;width:440px;max-height:80vh;overflow-y:auto;box-shadow:0 4px 20px #00000026}.admin-modal h3{margin-bottom:16px;font-size:16px}.admin-modal label{display:block;font-size:13px;color:#666;margin:10px 0 4px}.admin-modal .form-input{width:100%;padding:8px 12px;border:1px solid #D9D9D9;border-radius:4px;font-size:14px;box-sizing:border-box}.btn-default{background:#fff;color:#333;border:1px solid #D9D9D9;padding:8px 20px;border-radius:4px;cursor:pointer;font-size:14px}.btn-primary{background:#1890ff;color:#fff;border:none;padding:8px 20px;border-radius:4px;cursor:pointer;font-size:14px}.security-content{padding:16px}.security-section{background:#fff;border-radius:8px;padding:20px;margin-bottom:16px}.security-section h3{font-size:15px;color:#333;margin-bottom:12px}.security-success{background:#f6ffed;color:#52c41a;padding:10px 14px;border-radius:6px;margin-bottom:12px;font-size:14px}.security-error{background:#fff2f0;color:#ff4d4f;padding:10px 14px;border-radius:6px;margin-bottom:12px;font-size:14px}.image-lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;background:#000000e6;display:flex;align-items:center;justify-content:center;cursor:pointer}.image-lightbox img{max-width:95vw;max-height:95vh;object-fit:contain;border-radius:4px}