.layout{display:flex;min-height:100vh}.sidebar{position:fixed;top:0;left:0;width:200px;height:100vh;background-color:var(--sidebar-bg);display:flex;flex-direction:column;justify-content:space-between;z-index:var(--z-fixed);transition:width .3s ease;overflow:hidden}.sidebar-collapsed .sidebar{width:68px}.sidebar__logo{display:flex;align-items:center;gap:12px;padding:20px 16px 32px}.sidebar__logo-icon{width:36px;height:36px;min-width:36px;background:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:4px}.sidebar__logo-icon img{width:100%;height:100%;-o-object-fit:contain;object-fit:contain}.sidebar__logo-text{color:var(--sidebar-text-active);font-weight:700;font-size:16px;white-space:nowrap}.sidebar__menu{display:flex;flex-direction:column;gap:4px;padding:0 12px}.sidebar__menu-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:8px;color:var(--sidebar-text);cursor:pointer;transition:all .2s 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var(--border-light);border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,.12);display:flex;flex-direction:column;overflow:hidden;z-index:calc(var(--z-fixed) + 10)}.notif-panel__header{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--border-light);flex-shrink:0}.notif-panel__title{flex:1;font-weight:600;font-size:14px;color:var(--text-primary)}.notif-panel__body{flex:1;overflow-y:auto;padding:4px 0}.notif-panel__body::-webkit-scrollbar{width:4px}.notif-panel__body::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:2px}.notif-panel__empty{padding:32px 16px;text-align:center;font-size:13px;color:var(--text-muted,#9ca3af)}.notif-panel__footer{border-top:1px solid var(--border-light);padding:8px 12px;flex-shrink:0}.notif-list{list-style:none;margin:0;padding:0}.notif-item{padding:10px 16px;border-bottom:1px solid var(--border-light);cursor:pointer;transition:background 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