.app-layout{display:flex;flex-direction:column;height:100%;overflow:hidden;background:var(--bg-primary)}.app-header{height:64px;min-height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;background:var(--bg-secondary);border-bottom:1px solid var(--border-light);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);position:sticky;top:0;z-index:40;flex-shrink:0}.app-header__logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}.app-header__logo-icon{width:32px;height:32px;background:var(--accent-primary);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0}.app-header__logo-text{font-size:14px;font-weight:600;letter-spacing:-.01em;color:var(--text-primary)}.app-header__version{font-size:11px;font-weight:500;color:var(--text-secondary);padding:2px 6px;border-radius:var(--radius-sm);background:var(--bg-tertiary, rgba(128,128,128,.12));letter-spacing:0}@media (max-width: 480px){.app-header__logo-text,.app-header__version{display:none}}.app-header__nav{display:none;align-items:center;gap:4px;position:absolute;left:50%;transform:translate(-50%)}@media (min-width: 768px){.app-header__nav{display:flex}}.app-header__nav-item{padding:0 16px;height:32px;border-radius:var(--radius-sm);display:flex;align-items:center;font-size:14px;font-weight:500;color:var(--text-secondary);text-decoration:none;transition:background .15s ease,color .15s ease}.app-header__nav-item:hover{background:var(--bg-hover);color:var(--text-primary)}.app-header__nav-item--active{background:var(--accent-primary);color:#fff}.app-header__nav-item--active:hover{background:var(--accent-primary-light);color:#fff}.app-header__actions{display:flex;align-items:center;gap:4px;flex-shrink:0}.app-header__action-btn{width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;background:transparent;border:none;cursor:pointer;color:var(--text-secondary);transition:background .15s ease,color .15s ease}.app-header__action-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.app-header__chat-btn{color:var(--accent-primary);position:relative}.app-header__chat-btn:hover{background:#6b9eff1a;color:var(--accent-primary)}.app-header__chat-btn--unread{animation:appChatBreathing 2s ease-in-out infinite}@keyframes appChatBreathing{0%,to{background:#6b9eff14;box-shadow:0 0 #6b9eff00}50%{background:#6b9eff2e;box-shadow:0 0 8px 2px #6b9eff40}}.app-header__divider{width:1px;height:24px;background:var(--border-light);margin:0 4px}.app-header__avatar{width:32px;height:32px;border-radius:50%;background:var(--accent-primary);color:#fff;font-size:12px;font-weight:600;display:flex;align-items:center;justify-content:center;flex-shrink:0;-webkit-user-select:none;user-select:none}.app-header__user-info{display:none;flex-direction:column;gap:2px;min-width:0}@media (min-width: 1024px){.app-header__user-info{display:flex}}.app-header__user-name{font-size:12px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:120px}.app-header__logout-btn{width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;background:transparent;border:none;cursor:pointer;color:var(--text-secondary);transition:background .15s ease,color .15s ease}.app-header__logout-btn:hover{background:#f04b4b14;color:var(--accent-error)}.app-body{display:flex;flex:1;overflow:hidden}.app-sidebar{display:none;width:56px;flex-shrink:0;flex-direction:column;align-items:center;padding:16px 0;gap:4px;background:var(--bg-secondary);border-right:1px solid var(--border-light);overflow:hidden}@media (min-width: 768px){.app-sidebar{display:flex}}.app-sidebar__item{width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);text-decoration:none;transition:background .15s ease,color .15s ease}.app-sidebar__item:hover{background:var(--bg-hover);color:var(--text-primary)}.app-sidebar__item--active{background:var(--accent-primary);color:#fff}.app-sidebar__item--active:hover{background:var(--accent-primary-light);color:#fff}.app-main{flex:1;overflow-y:auto;overflow-x:hidden;padding-bottom:64px}@media (min-width: 768px){.app-main{padding-bottom:0}}.app-content{padding:24px 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