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var(--white))}.user-menu-item-highlight:hover{background:linear-gradient(135deg, var(--gold-100), var(--white))}.user-menu-item-highlight .user-menu-item-value{color:var(--gold-600);font-weight:700}.user-menu-tier-row{align-items:center;gap:var(--s2);flex-wrap:wrap;margin-top:2px;display:flex}.user-menu-list{padding:var(--s2);flex-direction:column;flex:1;gap:2px;display:flex;overflow-y:auto}.user-menu-item{align-items:center;gap:var(--s3);padding:var(--s3) var(--s4);border-radius:var(--r-lg);text-align:left;cursor:pointer;transition:all var(--dur-fast) var(--ease);color:var(--gray-800);font-size:var(--text-sm);background:0 0;border:none;display:flex}.user-menu-item:hover{background:var(--gray-100)}.user-menu-item:active{transform:scale(.99)}.user-menu-item-icon{flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;font-size:1rem;display:flex}.user-menu-item-label{flex:1;font-weight:500}.user-menu-item-value{font-size:var(--text-xs);color:var(--gray-500);margin-right:var(--s1);text-overflow:ellipsis;white-space:nowrap;flex-shrink:1;max-width:180px;font-weight:500;overflow:hidden}.user-menu-item-arrow{color:var(--gray-400);flex-shrink:0;font-size:1.1rem;line-height:1}.user-menu-footer{padding:var(--s4);border-top:1px solid var(--gray-100);margin-top:auto}.user-menu-logout{justify-content:center;align-items:center;gap:var(--s2);width:100%;padding:var(--s3) var(--s5);border-radius:var(--r-lg);background:var(--gray-50);border:1.5px solid var(--gray-200);color:var(--gray-700);font-size:var(--text-sm);cursor:pointer;transition:all var(--dur-fast) var(--ease);font-weight:600;display:flex}.user-menu-logout:hover{background:var(--red-50);border-color:var(--red-200);color:var(--red-600)}.user-menu-login:hover{background:var(--brand-050);border-color:var(--brand-100);color:var(--brand-600)}.user-menu-logout:active{transform:scale(.99)}.user-menu-delete{background:var(--white);border:1.5px solid var(--red-200);color:var(--red-500);margin-bottom:var(--s2)}.user-menu-delete:hover{background:var(--red-50);border-color:var(--red-300);color:var(--red-600)}.user-menu-logout-icon{font-size:.95rem}@media (width<=480px){.user-menu-overlay{align-items:flex-end;padding:0}.user-menu-panel{border-radius:var(--r-2xl) var(--r-2xl) 0 0;max-width:100%;max-height:85vh;animation:userMenuSlideUp .25s var(--ease-out)}@keyframes userMenuSlideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}}.logout-btn{border-radius:var(--r-lg);color:#ffffff80;font-size:var(--text-sm);cursor:pointer;transition:all var(--dur-micro) var(--ease);white-space:nowrap;background:0 0;border:1.5px solid #ffffff26;align-items:center;gap:6px;margin-left:auto;padding:6px 10px;font-weight:600;display:flex}.logout-btn:hover{color:#fca5a5;background:#ef44441f;border-color:#ef444466}.logout-btn:active{transform:scale(.96)}.logout-icon{flex-shrink:0;font-size:.9rem;line-height:1}.logout-text{font-size:var(--text-xs)}.avatar-trigger{align-items:center;gap:var(--s3);min-width:0;padding:var(--s1);margin:calc(-1 * var(--s1));border-radius:var(--r-lg);color:inherit;cursor:pointer;transition:all var(--dur-fast) var(--ease);text-align:left;background:0 0;border:none;flex:1;display:flex}.avatar-trigger:hover{background:#ffffff14}.avatar-trigger:active{transform:scale(.99)}.avatar-trigger .avatar{margin:0}.avatar-trigger-arrow{color:#ffffff59;transition:color var(--dur-fast) var(--ease);margin-left:auto;font-size:1.1rem;line-height:1}.avatar-trigger:hover .avatar-trigger-arrow{color:#ffffffa6}.sidebar-footer{align-items:center;gap:var(--s3);padding:var(--s4) var(--s4);border-top:1px solid #ffffff14;display:flex}.layout-breadcrumb{align-items:center;gap:var(--s2);font-size:var(--text-sm);color:var(--gray-500);margin-bottom:var(--s6);display:flex}.layout-breadcrumb a{color:var(--ai-600);cursor:pointer;transition:color var(--dur-micro)}.layout-breadcrumb a:hover{color:var(--ai-700)}.nav-item-locked{opacity:.45;cursor:not-allowed;position:relative}.nav-item-locked:hover{opacity:.65}.nav-locked-hint{color:var(--brand-accent);margin-left:auto;font-size:10px;display:none}.nav-item-locked:hover .nav-locked-hint{display:inline}.nav-subitem{padding-left:20px;position:relative}.nav-subitem:before{content:"";background:#ffffff1a;width:1px;position:absolute;top:0;bottom:0;left:22px}.nav-subitem .nav-item{opacity:.88;font-size:13px}.nav-subitem .nav-item.active{opacity:1}.sidebar-upgrade-btn{background:linear-gradient(135deg, var(--gold-500,#f59e0b), var(--gold-600,#d97706));color:#fff;text-align:center;border-radius:8px;width:100%;margin-bottom:8px;padding:6px 12px;font-size:12px;font-weight:700;text-decoration:none;transition:all .2s;display:block}.sidebar-upgrade-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px #f59e0b59}.sidebar-upgrade-btn--premium{background:var(--brand-gradient)}.sidebar-upgrade-btn--premium:hover{box-shadow:0 4px 12px #0f346059}.avatar-tier-row{flex-wrap:wrap;align-items:center;gap:4px;margin-top:3px;display:flex}.avatar-quota-row{flex-wrap:wrap;align-items:center;gap:4px;margin-top:4px;display:flex}.quota-chip{background:var(--brand-100);color:var(--brand-700);border-radius:10px;align-items:center;padding:2px 8px;font-size:11px;font-weight:600;display:inline-flex}.collapse-btn{border-radius:var(--r-md);color:#ffffffb3;cursor:pointer;width:28px;height:28px;transition:all var(--dur-micro) var(--ease);background:#ffffff14;border:none;flex-shrink:0;justify-content:center;align-items:center;margin-left:auto;display:flex}.collapse-btn:hover{color:#fff;background:#ffffff29}.collapse-btn:active{transform:scale(.94)}.collapse-icon{font-size:16px;line-height:1;display:block}@media (width>=769px){.app-shell.sidebar-collapsed .sidebar{margin-left:calc(-1 * var(--sidebar-w,240px))}}.sidebar-expand-btn{z-index:60;border:1px solid var(--gray-200);border-radius:var(--r-md);background:var(--white);width:36px;height:36px;color:var(--ink-700);box-shadow:var(--shadow-md);cursor:pointer;transition:all var(--dur-micro) var(--ease);justify-content:center;align-items:center;display:flex;position:fixed;top:16px;left:16px}.sidebar-expand-btn:hover{background:var(--gray-50);color:var(--ink-900)}.sidebar-expand-btn:active{transform:scale(.94)}@media (width<=768px){.collapse-btn,.sidebar-expand-btn{display:none}}