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input{min-width:0;flex:1;width:100%;min-height:48px;background:none;border:0;font-size:16px}.mobile-connect-form .primary-button{height:50px}@media(max-width:760px){:root{--mobile-safe-top: var(--safe-area-inset-top, env(safe-area-inset-top, 0px));--mobile-safe-bottom: var(--safe-area-inset-bottom, env(safe-area-inset-bottom, 0px))}:root.keyboard-open{--mobile-safe-bottom: 0px}body{overscroll-behavior:none;-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}input,textarea,select{font-size:16px}input,textarea{scroll-margin:90px}.app,.onboarding,.startup-state{height:var(--app-height, 100dvh)}.app:before{display:none}.icon-button{width:40px;height:40px;border-radius:12px}.primary-button,.secondary-button{min-height:44px;height:auto;padding:10px 18px}.sidebar{inset:0;width:auto;border-radius:0;padding:var(--mobile-safe-top) 0 0;background:var(--canvas);box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}.sidebar-drag,.sidebar .me-card,.sidebar .sidebar-logout,.sidebar .admin-entry{display:none}.space-heading{padding:20px 20px 10px;min-height:88px}.space-copy h1{font:650 27px/34px var(--font-rounded);letter-spacing:-.6px}.space-copy p{margin-top:5px;font-size:12px}.space-actions{gap:2px}.sidebar-search{min-height:44px;margin:4px 18px 12px;border-radius:13px;padding-left:13px;background:var(--fill-1)}.sidebar-search input{font-size:16px}.switch-hint{display:none}.conversation-scroll{padding:0 10px 16px;overscroll-behavior:contain}.section-label{min-height:38px;padding-left:10px}.conversation{min-height:78px;padding:12px 10px;border-radius:15px;gap:12px}.conversation .avatar,.conversation .room-icon{width:48px;height:48px;border-radius:15px}.conversation-name{font-size:16px}.conversation-preview{margin-top:6px;font-size:13px;line-height:19px}.mobile-tabs{flex-shrink:0;display:flex;border-top:1px solid var(--line);padding:6px 10px calc(6px + var(--mobile-safe-bottom));background:var(--canvas)}.mobile-tabs>button{display:flex;flex:1;flex-direction:column;align-items:center;justify-content:center;gap:5px;min-height:55px;color:var(--text-3);font-size:11px}.mobile-tabs>button.active{color:var(--accent-bright)}.mobile-tabs>button:not(.active):hover{color:var(--text-3)}.mobile-tab-icon{position:relative;display:flex}.mobile-tab-badge{position:absolute;top:-5px;left:16px;min-width:17px;padding:1px 4px;border-radius:9px;background:var(--accent);color:#fff;font-size:10px;line-height:15px;border:2px solid var(--canvas)}.sidebar:not([data-mobile-tab=chats])>:not(.mobile-home):not(.mobile-tabs){display:none!important}.mobile-home{display:flex;flex:1;min-height:0;flex-direction:column;overflow-y:auto;padding:20px 20px 24px;overscroll-behavior:contain}.mobile-home header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.mobile-home h1{font:650 28px/38px var(--font-rounded);letter-spacing:-.6px}.mobile-home header>button{display:grid;place-items:center;width:44px;height:44px;color:var(--accent-bright)}.mobile-contact-search{display:flex;align-items:center;gap:10px;padding:0 12px;border-radius:13px;background:var(--fill-1);color:var(--text-3)}.mobile-contact-search input{width:100%;min-width:0;height:44px;border:0;background:none;box-shadow:none}.mobile-contact-group{display:flex;align-items:center;gap:12px;min-height:76px;border-bottom:1px solid var(--line)}.mobile-contact-group>span{display:grid;place-items:center;width:44px;height:44px;background:var(--fill-2);border-radius:14px;color:var(--accent-bright)}.mobile-contact-group b{flex:1;text-align:left;font-size:15px;font-weight:500}.mobile-contact-group>svg,.mobile-contact>svg{color:var(--text-3)}.mobile-list-label{margin:22px 0 8px;color:var(--text-3);font-size:12px}.mobile-contact{display:flex;align-items:center;width:100%;gap:12px;min-height:76px;text-align:left}.mobile-contact>span:not(.avatar){flex:1;min-width:0}.mobile-contact b,.mobile-contact small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mobile-contact b{font-size:16px;line-height:24px;font-weight:550}.mobile-contact small{margin-top:2px;font-size:12px;color:var(--text-3)}.mobile-profile{display:flex;align-items:center;gap:16px;min-height:96px;text-align:left}.mobile-profile>span:not(.avatar){flex:1;min-width:0}.mobile-profile b{display:block;font-size:23px;line-height:30px;overflow-wrap:anywhere}.mobile-profile small{display:block;margin-top:6px;color:var(--text-2);font-size:13px;overflow-wrap:anywhere}.mobile-profile>svg{color:var(--text-3)}.mobile-connection-status{display:flex;align-items:center;gap:7px;margin:18px 0 30px;color:var(--text-3);font-size:12px}.mobile-settings-list{background:var(--fill-1);border-radius:18px;padding:0 16px}.mobile-settings-list>button{width:100%;min-height:60px;display:flex;align-items:center;gap:14px;text-align:left}.mobile-settings-list>button+button{border-top:1px solid var(--edge)}.mobile-settings-list>button>span{flex:1;font-size:15px}.mobile-settings-list>button>svg:first-child{color:var(--accent-bright)}.mobile-settings-list>button>svg:last-child{color:var(--text-3)}.mobile-signout{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:24px;min-height:50px;color:var(--danger-text);font-size:14px}.chat-toolbar{top:0;left:0;right:0;height:calc(66px + var(--mobile-safe-top));padding:calc(8px + var(--mobile-safe-top)) 10px 8px;gap:3px;background:var(--glass-solid);border-bottom:1px solid var(--edge);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.chat-toolbar .glass{background:transparent;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}.chat-toolbar .back-button{width:36px;height:44px;color:var(--accent-bright)}.toolbar-title{min-width:0;padding:0 4px;gap:9px}.toolbar-copy h2{font-size:16px;line-height:23px}.toolbar-subtitle{display:block;margin-top:1px;font-size:11px}.toolbar-actions{gap:2px}.toolbar-button{min-width:40px;height:44px;padding:0 8px}.member-count .avatar-stack{display:none}.member-count:before{content:"成员";font-size:12px}.member-count>span:last-child{display:none}.message-scroll{padding-top:calc(82px + var(--mobile-safe-top));padding-bottom:calc(110px + var(--mobile-safe-bottom));scroll-padding-bottom:110px;overscroll-behavior-y:contain}.message-column{max-width:86%}.message-bubble{padding:9px 12px;line-height:1.5}.composer-area{left:10px;right:10px;bottom:calc(8px + var(--mobile-safe-bottom))}.composer textarea{font-size:16px;line-height:22px;max-height:min(140px,30vh)}.composer .emoji-button{width:34px;height:36px}.round-button{width:44px;height:44px}.jump-to-latest{bottom:calc(82px + var(--mobile-safe-bottom))}.unread-anchor{top:calc(76px + var(--mobile-safe-top))}.announcement-banner,.pinned-message-bar{top:calc(72px + var(--mobile-safe-top));left:12px;right:12px}.members-panel{z-index:8;inset:calc(8px + var(--mobile-safe-top)) 8px calc(8px + var(--mobile-safe-bottom));background:var(--canvas);padding:18px}.members-panel .history-entry{min-height:48px}.selection-bar,.muted-notice{bottom:calc(12px + var(--mobile-safe-bottom))}.modal{max-height:calc(var(--app-height, 100dvh) - var(--mobile-safe-top) - var(--mobile-safe-bottom) - 24px);border-radius:22px}.modal-content{padding:22px 20px}.modal input:not([type=checkbox]):not([type=range]):not([type=color]),.modal select{min-height:44px;font-size:16px}.modal-heading .icon-button{width:44px;height:44px}.message-context-menu{min-width:220px;max-width:calc(100vw - 24px)}.message-context-menu button{min-height:44px}.image-viewer{height:var(--app-height, 100dvh)}.viewer-bar{padding-top:calc(8px + var(--mobile-safe-top))}.viewer-bar button[aria-label^=放大],.viewer-bar button[aria-label^=缩小]{display:none}.viewer-stage{top:calc(68px + var(--mobile-safe-top));bottom:calc(78px + var(--mobile-safe-bottom))}.viewer-nav{bottom:calc(16px + var(--mobile-safe-bottom))}.toast{bottom:calc(90px + var(--mobile-safe-bottom));max-width:calc(100vw - 32px)}.onboarding{gap:30px;padding:calc(36px + var(--mobile-safe-top)) 24px calc(24px + var(--mobile-safe-bottom));background:var(--canvas)}.welcome-brand{gap:12px}.welcome-story h1{margin-top:30px;font-size:34px;line-height:1.3;letter-spacing:-1px}.story-description{max-width:300px;font-size:14px;line-height:23px}.story-footer{display:none}.welcome-panel{padding:0;border-radius:0;background:transparent;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}.setup-form{padding:0}.setup-form h2{font-size:23px}.setup-form input{min-height:49px;border-radius:13px;font-size:16px}.setup-form .primary-button{min-height:50px;border-radius:15px}.segmented-control{min-height:44px;border-radius:13px}.segmented-control button{min-height:38px}.startup-state{padding:calc(24px + var(--mobile-safe-top)) 24px calc(24px + var(--mobile-safe-bottom));text-align:center}}