.mobile-header{height:var(--header-height);background:var(--header-bg);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--nav-border);z-index:200;transition:background var(--transition-base);display:none;position:fixed;top:0;left:0;right:0}.mobile-header .mobile-header-inner{height:100%;padding-left:var(--space-2);padding-right:var(--space-4);justify-content:space-between;align-items:center;gap:var(--space-2);width:100%;display:flex}.mobile-header .mobile-header-inner.with-back{padding-left:var(--space-1)}.header-btn{border-radius:var(--radius-md);width:40px;height:40px;color:var(--text);cursor:pointer;transition:background var(--transition-fast);background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;display:flex;position:relative}.header-btn:hover{background:var(--primary-glow)}.header-btn:active{transform:scale(.95)}.mobile-title{font-size:var(--text-lg);color:var(--text);text-align:center;white-space:nowrap;text-overflow:ellipsis;padding:0 var(--space-2);letter-spacing:-.01em;flex:1;margin:0;font-weight:600;overflow:hidden}.header-actions{align-items:center;gap:var(--space-1);flex-shrink:0;min-width:40px;display:flex}.header-bell{margin-right:-8px;position:relative}.header-bell svg{width:22px;height:22px}.header-bell .header-bell-badge{background:var(--danger);color:#fff;pointer-events:none;border-radius:8px;justify-content:center;align-items:center;min-width:16px;height:16px;padding:0 4px;font-size:9px;font-weight:600;display:flex;position:absolute;top:2px;right:2px;box-shadow:0 2px 4px #ef44444d}.bottom-nav{height:var(--nav-height);background:var(--card-bg);border-top:1px solid var(--nav-border);z-index:200;padding-bottom:env(safe-area-inset-bottom,0);justify-content:space-around;align-items:center;display:none;position:fixed;bottom:0;left:0;right:0}.bottom-nav-item{padding:var(--space-1) var(--space-2);cursor:pointer;color:var(--nav-icon-inactive);transition:color var(--transition-fast);-webkit-tap-highlight-color:transparent;flex-direction:column;align-items:center;gap:2px;min-width:48px;text-decoration:none;display:flex;position:relative}.bottom-nav-item.active{color:var(--nav-icon-active)}.bottom-nav-item.active .bottom-nav-icon{transform:scale(1.05)}.bottom-nav-item.active .bottom-nav-label{font-weight:600}.bottom-nav-item.active:before{content:"";background:var(--nav-icon-active);border-radius:0 0 3px 3px;width:20px;height:3px;position:absolute;top:-1px;left:50%;transform:translate(-50%)}.bottom-nav-item:active .bottom-nav-icon{transform:scale(.9)}.bottom-nav-icon{width:24px;height:24px;transition:transform var(--transition-fast);justify-content:center;align-items:center;display:flex}.bottom-nav-icon svg{width:22px;height:22px}.bottom-nav-label{text-align:center;color:inherit;transition:font-weight var(--transition-fast);font-size:10px;font-weight:500;line-height:1.2}@media (max-width: 768px){.mobile-header,.bottom-nav{display:flex}}body.sidebar-open .mobile-header{display:none}body.fullscreen-dialog-open .mobile-header{visibility:visible}@media (min-width: 481px) and (max-width: 768px){.mobile-header{padding-left:var(--space-3);padding-right:var(--space-5)}.mobile-title{font-size:var(--text-xl)}.bottom-nav .bottom-nav-item{padding:var(--space-2) var(--space-3)}}@media (orientation:landscape) and (height<=500px){.mobile-header{height:44px}.bottom-nav{height:52px}.bottom-nav .bottom-nav-icon{width:20px;height:20px}.bottom-nav .bottom-nav-icon svg{width:18px;height:18px}.bottom-nav .bottom-nav-label{font-size:9px}}.sidebar-overlay{background:var(--overlay-bg);z-index:99;opacity:0;transition:opacity var(--transition-base);pointer-events:none;display:none;position:fixed;inset:0}.sidebar-overlay.show{opacity:1;pointer-events:auto}.sidebar{background:var(--card-bg);border-right:1px solid var(--border);width:200px;height:var(--vvh,100dvh);z-index:100;transition:width var(--transition-base), background-color var(--transition-base), transform var(--transition-base);flex-direction:column;padding:0;display:flex;position:fixed;top:0;left:0;overflow:hidden}.sidebar.collapsed{width:72px}.sidebar.collapsed .sidebar-header{padding-left:0;padding-right:0}.sidebar.collapsed .logo{flex:1;justify-content:center;gap:0}.sidebar.collapsed .nav-item{justify-content:center;gap:0;padding-left:0;padding-right:0}.sidebar.collapsed .logo-text,.sidebar.collapsed .nav-text{opacity:0;max-width:0;transition:max-width var(--transition-base), opacity .1s ease, margin-left var(--transition-base);margin-left:0;overflow:hidden}.sidebar.collapsed .nav-section-label{opacity:0;max-height:0;transition:max-height var(--transition-base), opacity .1s ease, padding var(--transition-base);margin-bottom:0;padding-top:0;padding-bottom:0;overflow:hidden}.sidebar-header{padding:var(--space-3);border-bottom:1px solid var(--border-light);flex-shrink:0;justify-content:space-between;align-items:center;display:flex}.logo{cursor:pointer;align-items:center;gap:0;display:flex}.logo .logo-icon{border-radius:var(--radius-md);background:var(--primary);color:#fff;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.logo .logo-icon svg{width:20px;height:20px}.logo .logo-text{font-size:var(--text-xl);color:var(--text);letter-spacing:-.02em;white-space:nowrap;opacity:1;max-width:200px;margin-left:var(--space-2);transition:max-width var(--transition-base), opacity .2s ease 80ms, margin-left var(--transition-base);font-weight:700;overflow:hidden}.sidebar-nav{padding:var(--space-2);overscroll-behavior:contain;-webkit-overflow-scrolling:touch;flex:1;overflow:hidden auto}.sidebar-footer{border-top:1px solid var(--border-light);padding:var(--space-2);flex-shrink:0}.nav-section-label{font-size:var(--text-xs);color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.05em;padding:var(--space-1) var(--space-2);opacity:1;max-height:40px;transition:max-height var(--transition-base), opacity .2s ease 80ms, padding var(--transition-base);font-weight:600;overflow:hidden}.nav-item{padding:var(--space-1) var(--space-2);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);color:var(--text-secondary);-webkit-user-select:none;user-select:none;opacity:1;align-items:center;gap:0;margin-bottom:1px;font-weight:500;text-decoration:none;display:flex}.nav-item:hover{background:var(--primary-soft);color:var(--primary);opacity:1}.nav-item.active{background:var(--primary-soft);color:var(--primary);font-weight:600}.nav-item:active{transform:scale(.98)}.nav-icon{flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;font-size:18px;display:flex}.nav-icon svg{width:20px;height:20px}.nav-avatar img{object-fit:cover;border-radius:50%;width:24px;height:24px}.nav-avatar .avatar-placeholder{background:var(--primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;font-size:11px;font-weight:600;display:flex}.nav-icon-bell{position:relative}.nav-icon-bell .nav-badge{background:var(--danger);color:#fff;pointer-events:none;border-radius:8px;justify-content:center;align-items:center;min-width:16px;height:16px;padding:0 4px;font-size:9px;font-weight:600;display:flex;position:absolute;top:-6px;right:-8px;box-shadow:0 2px 4px #ef44444d}.nav-text{font-size:var(--text-sm);white-space:nowrap;text-overflow:ellipsis;opacity:1;max-width:180px;margin-left:var(--space-2);transition:max-width var(--transition-base), opacity .2s ease 80ms, margin-left var(--transition-base);overflow:hidden}.nav-logout{margin-top:var(--space-1)}.nav-logout:hover{background:var(--danger-soft)!important;color:var(--danger)!important}@media (max-width: 768px){.sidebar-overlay{display:block}.sidebar{box-shadow:none;padding-top:env(safe-area-inset-top,0px);padding-bottom:calc(var(--nav-height) + env(safe-area-inset-bottom,0px));border-right:none;transform:translate(-100%)}.sidebar.show{box-shadow:var(--shadow-float);transform:translate(0)}}body.sidebar-open{overflow:hidden}.main-content{padding:var(--space-3);background:var(--bg);min-height:var(--vvh,100dvh);transition:margin-left var(--transition-base), padding var(--transition-base), background-color var(--transition-base);flex:1;margin-left:200px;position:relative;overflow-x:hidden}.main-content.sidebar-collapsed{margin-left:72px}.page-enter-active,.page-leave-active{transition:opacity .2s,transform .2s}.page-leave-active{position:absolute;inset:0}.page-enter-from{opacity:0;transform:translateY(8px)}.page-leave-to{opacity:0;transform:translateY(-4px)}.message-item{padding:var(--space-4);border-bottom:1px solid var(--border-light);transition:background-color var(--transition-fast)}.message-item:hover{background:var(--card-bg-hover)}.message-item.unread{background:var(--primary-soft);border-left:3px solid var(--primary)}.message-header{align-items:center;gap:var(--space-2);margin-bottom:var(--space-2);flex-wrap:wrap;display:flex}.message-type-badge{border-radius:var(--radius-sm);background:var(--primary-soft);color:var(--primary);padding:2px 8px;font-size:11px;font-weight:500}.message-type-badge.invitation,.message-type-badge.team_invitation{background:var(--secondary-soft);color:var(--secondary)}.message-type-badge.system{background:var(--warning-soft);color:var(--warning)}.message-type-badge.SECURITY{background:var(--danger-soft);color:var(--danger)}.message-title{color:var(--text);word-break:break-all;font-weight:600;font-size:var(--text-sm);flex:1}.message-time{font-size:var(--text-xs);color:var(--text-tertiary);white-space:nowrap}.message-content{color:var(--text-secondary);font-size:var(--text-sm);word-break:break-all;line-height:1.6}.message-footer{margin-top:var(--space-2);font-size:var(--text-xs);color:var(--text-tertiary)}.message-actions{margin-top:var(--space-3);gap:var(--space-2);flex-wrap:wrap;display:flex}.mark-all-read{text-align:center;padding:var(--space-3)}.message-dialog .el-dialog__title{font-weight:600}.empty-message{text-align:center;padding:var(--space-10);color:var(--text-tertiary);font-size:var(--text-sm)}@media (max-width: 768px){.main-content{margin-left:0;margin-top:var(--header-height);padding-right:var(--space-2);padding-bottom:var(--space-2);padding-left:var(--space-2);min-height:calc(var(--vvh,100dvh) - var(--header-height) - var(--nav-height) - env(safe-area-inset-bottom,0px));padding-top:12px!important}.main-content.sidebar-collapsed{margin-left:0}.message-list{max-height:60vh}.message-item{padding:var(--space-3)}.message-header{gap:var(--space-1);flex-wrap:wrap}.message-type-badge{padding:1px 6px;font-size:10px}.message-title,.message-content{font-size:var(--text-sm)}.message-actions{margin-top:var(--space-2)}}@media (orientation:landscape) and (height<=500px){.main-content{margin-top:44px}}