/* ==================== 蝴蝶SCRM 管理后台 核心样式（对齐2号项目视觉系统） ==================== */
/* 100%自研，原生CSS3，不使用任何CSS框架（铁律一） */
/* 设计语言：渐变主题色 / 玻璃拟态 / 弹性动画 / 现代化交互 */

/* ---------- 基础重置 ---------- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
    /* 主题色体系（对齐2号项目） */
    --theme-primary:#3B82F6;
    --theme-primary-light:#EFF6FF;
    --theme-primary-hover:#DBEAFE;
    --theme-primary-dark:#2563EB;
    --theme-accent:#60A5FA;
    --theme-shadow:rgba(59,130,246,0.25);
    /* 功能色 */
    --success:#10b981;--success-dark:#059669;
    --warning:#f59e0b;--warning-dark:#d97706;
    --danger:#ef4444;--danger-dark:#dc2626;
    --info:#6b7280;
    /* 文字层级 */
    --text:#1f2937;
    --text-secondary:#6b7280;
    --text-muted:#9ca3af;
    --text-placeholder:#d1d5db;
    /* 背景 */
    --bg:#f9fafb;
    --bg-white:#fff;
    --border:#e8ecf1;
    --border-light:#f3f4f6;
    /* 圆角体系 */
    --radius-sm:6px;--radius-md:10px;--radius-lg:12px;--radius-xl:16px;--radius-2xl:20px;
    --radius:var(--radius-sm);
    /* 阴影 */
    --shadow:0 1px 3px rgba(0,0,0,.06);
    --shadow-md:0 4px 12px rgba(0,0,0,.08);
    --shadow-lg:0 8px 24px rgba(0,0,0,.12);
    /* 布局 */
    --l1-width:72px;--l2-width:180px;--header-height:56px;
    /* 动画 */
    --ease:cubic-bezier(.16,1,.3,1);
    --ease-bounce:cubic-bezier(.34,1.56,.64,1);
}
html{font-size:14px;overflow-y:scroll}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--theme-primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--theme-primary-dark)}
ul,ol{list-style:none}
img{max-width:100%;vertical-align:middle}
input,select,textarea,button{font-family:inherit;font-size:inherit}

/* ---------- 全局过渡动画 ---------- */
body,.bg-white,.bg-gray-50,.page-card,.data-table td,.btn,.badge,.form-input,.form-select,.form-textarea{transition:background-color .3s ease,border-color .3s ease,color .3s ease,box-shadow .3s ease,transform .3s var(--ease-bounce)}

/* ---------- 主布局 ---------- */
.app-layout{display:flex;min-height:100vh;background:var(--bg)}

/* ---------- 主内容区（padding由内部.p-6提供，对齐2号项目） ---------- */
.main-content{flex:1;padding:0;overflow-y:auto;background:var(--bg)}

/* ---------- 页面卡片（对齐2号项目：bg-white rounded-lg border border-gray-100，无shadow） ---------- */
/* 标准结构（V1.14.50起所有页面统一）：
   <div class="page-card">
       <div class="page-card-header">
           <div class="page-card-title-row">  ← 标题行（flex+justify-between+mb-4），下方可扩展筛选区/统计条/回收站
               <h3 class="page-card-title"><i class="fas fa-xxx mr-2"></i>标题</h3>
               <div class="page-card-actions">按钮组</div>
           </div>
       </div>
       <div class="page-card-body">内容</div>
   </div>
*/
.page-card{background:#fff;border-radius:8px;border:1px solid #f3f4f6;margin-bottom:16px;overflow:hidden}
.page-card-header{display:block;padding:16px 24px;border-bottom:1px solid #f3f4f6}
.page-card-title-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px;flex-wrap:wrap}
.page-card-title-row:last-child{margin-bottom:0}
.page-card-title{font-size:16px;font-weight:700;color:#1f2937;display:flex;align-items:center;gap:8px;margin:0}
.page-card-title>span,.page-card-title>i{color:var(--theme-primary);font-size:16px;display:inline-flex;align-items:center}
.page-card-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;flex-wrap:wrap}
.page-card-body{padding:24px}
.page-card-title-legacy{font-size:16px;font-weight:700;color:#1f2937;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #f3f4f6;display:flex;align-items:center;justify-content:space-between}

/* ---------- 统计卡片（渐变图标+hover上移） ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:20px 24px;display:flex;align-items:center;gap:16px;transition:all .3s var(--ease-bounce)}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.stat-icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff;flex-shrink:0}
.stat-icon.blue{background:linear-gradient(135deg,var(--theme-primary),var(--theme-accent))}
.stat-icon.green{background:linear-gradient(135deg,#10b981,#34d399)}
.stat-icon.orange{background:linear-gradient(135deg,#f59e0b,#fbbf24)}
.stat-icon.purple{background:linear-gradient(135deg,#7c3aed,#a78bfa)}
.stat-icon.red{background:linear-gradient(135deg,#ef4444,#f87171)}
.stat-value{font-size:28px;font-weight:700;line-height:1.2}
.stat-label{font-size:13px;color:var(--text-muted);margin-top:2px}
.stat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:16px}
.stat-cards .stat-card{background:var(--bg);border-radius:var(--radius-md);padding:20px;text-align:center}
.stat-cards .stat-title{font-size:13px;color:var(--text-muted);margin-bottom:8px}
.stat-cards .stat-value{font-size:24px;font-weight:700;color:var(--text)}

/* ---------- 表格（粘性表头+行hover渐变+左移） ---------- */
.data-table{width:100%;border-collapse:collapse;font-size:13px;min-width:800px}
.data-table th{text-align:left;padding:12px 16px;background:var(--bg);color:var(--text-secondary);font-weight:600;white-space:nowrap;border-bottom:2px solid var(--border);position:sticky;top:0;z-index:10}
.data-table td{padding:11px 16px;border-bottom:1px solid var(--border-light);color:var(--text)}
.data-table tbody tr{transition:all .2s ease;border-left:3px solid transparent}
.data-table tbody tr:hover{background:linear-gradient(90deg,var(--theme-primary-light) 0%,transparent 100%);border-left-color:var(--theme-primary);transform:translateX(2px)}
.data-table .text-muted{color:var(--text-muted)}
.table-wrapper{overflow-x:auto;border-radius:var(--radius-md);-webkit-overflow-scrolling:touch}

/* ---------- 表单 ---------- */
.form-group{margin-bottom:18px}
.form-label{display:block;margin-bottom:6px;font-size:14px;color:var(--text);font-weight:600}
.form-label .required{color:var(--danger);margin-left:2px}
.form-input,.form-select,.form-textarea{width:100%;padding:10px 12px;border:1.5px solid var(--border);border-radius:var(--radius-md);font-size:14px;transition:all .25s var(--ease);background:#fff;color:var(--text);outline:none}
.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--theme-primary);box-shadow:0 0 0 3px var(--theme-shadow);transform:translateY(-1px)}
.form-textarea{min-height:80px;resize:vertical}
.form-row{display:flex;gap:16px}
.form-row .form-group{flex:1}
.form-hint{font-size:12px;color:var(--text-muted);margin-top:4px}

/* ---------- 按钮（精确对齐2号项目：px-5 py-2 rounded-lg text-sm font-medium） ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 20px;border:1px solid #e5e7eb;border-radius:8px;font-size:14px;cursor:pointer;transition:color .15s,background-color .15s,border-color .15s,opacity .15s;background:#fff;color:#6b7280;white-space:nowrap;line-height:1.5;font-weight:500;position:relative;overflow:hidden}
.btn:hover{border-color:#e5e7eb;color:#374151;background:#f9fafb}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-primary{background:var(--theme-primary);color:#fff;border:none;font-weight:500}
.btn-primary:hover{opacity:.9;color:#fff;background:var(--theme-primary);border:none}
.btn-default{background:#fff;color:#6b7280;border:1px solid #e5e7eb}
.btn-default:hover{background:#f9fafb;color:#374151;border-color:#e5e7eb}
.btn-warning{background:#fff;color:#f97316;border:1px solid #fed7aa;padding:8px 16px}
.btn-warning:hover{background:#fff7ed;color:#ea580c;border-color:#fed7aa}
.btn-success{background:var(--success);color:#fff;border:none;font-weight:500}
.btn-success:hover{opacity:.9;background:var(--success)}
.btn-danger{background:var(--danger);color:#fff;border:none;font-weight:500}
.btn-danger:hover{opacity:.9;background:var(--danger)}
.btn-sm{padding:5px 12px;font-size:12px;border-radius:6px}
.btn-lg{padding:12px 28px;font-size:15px;border-radius:8px}
.btn-link{border:none;background:none;color:var(--theme-primary);padding:0 4px;box-shadow:none;font-weight:500}
.btn-link:hover{color:var(--theme-primary-dark);background:none}
.btn-link.danger{color:var(--danger)}
/* Ripple效果 */
.btn::after{content:'';position:absolute;width:100%;height:100%;top:0;left:0;pointer-events:none;background-image:radial-gradient(circle,rgba(255,255,255,.3) 10%,transparent 10%);background-repeat:no-repeat;background-position:50%;transform:scale(10);opacity:0;transition:transform .4s,opacity .4s}
.btn:active::after{transform:scale(0);opacity:1;transition:0s}

/* ---------- 徽章/标签 ---------- */
.badge{display:inline-block;padding:2px 8px;font-size:12px;border-radius:10px;font-weight:600;line-height:1.6}
.badge-blue{background:var(--theme-primary-light);color:var(--theme-primary)}
.badge-green{background:#ecfdf5;color:var(--success)}
.badge-orange{background:#fffbeb;color:var(--warning)}
.badge-red{background:#fef2f2;color:var(--danger)}
.badge-gray{background:#f3f4f6;color:var(--info)}
.badge-purple{background:#f5f3ff;color:#7c3aed}

/* ---------- 分页 ---------- */
.pagination{display:flex;align-items:center;justify-content:flex-end;gap:6px;margin-top:16px;font-size:14px}
.pagination button{min-width:36px;height:36px;padding:0 10px;border:1px solid var(--border);background:#fff;border-radius:var(--radius-md);cursor:pointer;color:var(--text);transition:all .2s;font-weight:500}
.pagination button:hover:not(:disabled){border-color:var(--theme-primary);color:var(--theme-primary);background:var(--theme-primary-light);transform:translateY(-1px)}
.pagination button.active{background:var(--theme-primary);color:#fff;border-color:var(--theme-primary);box-shadow:0 2px 8px var(--theme-shadow)}
.pagination button:disabled{opacity:.4;cursor:not-allowed}
.pagination .page-info{margin-right:12px;color:var(--text-muted);font-size:13px}

/* ---------- 搜索栏 ---------- */
.search-bar{display:flex;gap:12px;margin-bottom:16px;flex-wrap:wrap;align-items:flex-end}
.search-bar .form-group{margin-bottom:0}
.search-bar .form-group .form-input,.search-bar .form-group .form-select{min-width:160px}

/* ---------- 弹窗（玻璃拟态+弹性入场） ---------- */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:200;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .3s ease,visibility .3s ease}
.modal-overlay.show{opacity:1;visibility:visible;pointer-events:auto}
.modal-box{background:#fff;border-radius:var(--radius-2xl);box-shadow:0 25px 80px rgba(0,0,0,.25),0 0 0 1px rgba(0,0,0,.05);width:90%;max-width:560px;max-height:85vh;display:flex;flex-direction:column;transform:scale(.9) translateY(20px);transition:all .3s var(--ease-bounce);overflow:visible;animation:modalIn .3s var(--ease-bounce) forwards}
.modal-box.lg{max-width:800px}
.modal-box.sm{max-width:400px}
@keyframes modalIn{from{opacity:0;transform:scale(.9) translateY(20px)}to{opacity:1;transform:scale(1) translateY(0)}}
.modal-header{padding:16px 24px;border-bottom:1px solid var(--border);font-size:17px;font-weight:700;color:var(--text);display:flex;align-items:center;justify-content:space-between}
.modal-close{font-size:20px;cursor:pointer;color:var(--text-muted);transition:color .2s;line-height:1}
.modal-close:hover{color:var(--danger)}
.modal-body{padding:24px;overflow-y:auto;flex:1}
.modal-footer{padding:12px 24px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}

/* ---------- 消息提示（顶部滑入+进度条+渐变） ---------- */
.toast{position:fixed;top:20px;left:50%;transform:translateX(-50%) translateY(-100px);padding:14px 24px;border-radius:var(--radius-lg);font-size:14px;font-weight:500;z-index:300;box-shadow:0 8px 24px rgba(0,0,0,.2);transition:transform .4s var(--ease-bounce);display:flex;align-items:center;gap:10px;min-width:300px;max-width:500px;color:#fff;overflow:hidden}
.toast.show{transform:translateX(-50%) translateY(0)}
.toast::after{content:'';position:absolute;bottom:0;left:0;height:3px;background:rgba(255,255,255,.4);border-radius:0 0 var(--radius-lg) var(--radius-lg);animation:toastProgress 3s linear forwards}
@keyframes toastProgress{0%{width:100%}100%{width:0%}}
.toast.success{background:linear-gradient(135deg,#10b981 0%,#059669 100%)}
.toast.error{background:linear-gradient(135deg,#ef4444 0%,#dc2626 100%)}
.toast.info{background:linear-gradient(135deg,var(--theme-primary) 0%,var(--theme-primary-dark) 100%)}
.toast.warning{background:linear-gradient(135deg,#f59e0b 0%,#d97706 100%)}

/* ---------- 空状态（对齐2号项目：text-center py-10 text-gray-400 + text-3xl mb-2 opacity-30） ---------- */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;text-align:center;color:#9ca3af}
.empty-state .empty-icon{font-size:30px;margin-bottom:8px;opacity:.3;color:#9ca3af;width:auto;height:auto;background:none;border-radius:0;box-shadow:none;display:inline-flex;align-items:center;justify-content:center}
.empty-state:hover .empty-icon{transform:none;box-shadow:none;opacity:.3}
.empty-state .empty-text{font-size:14px;color:#9ca3af;margin-bottom:0}
.empty-state .empty-sub{font-size:12px;color:#9ca3af;margin-top:4px}
.empty-row{text-align:center;padding:40px 20px;color:#9ca3af}
.empty-row .empty-icon{font-size:30px;margin-bottom:8px;opacity:.3}
.empty-row .empty-text{font-size:14px;color:#9ca3af}

/* ---------- 加载+骨架屏 ---------- */
.loading{text-align:center;padding:40px;color:var(--text-muted)}
.spinner{display:inline-block;width:28px;height:28px;border:3px solid var(--border);border-top-color:var(--theme-primary);border-radius:50%;animation:spin .6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.skeleton{background:linear-gradient(90deg,#f3f4f6 25%,#e5e7eb 50%,#f3f4f6 75%);background-size:200% 100%;animation:skeletonLoading 1.5s infinite;border-radius:var(--radius-sm)}
@keyframes skeletonLoading{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---------- 标签页 ---------- */
.tabs{display:flex;border-bottom:2px solid var(--border);margin-bottom:20px;gap:4px}
.tab{padding:8px 20px;cursor:pointer;font-size:14px;color:var(--text-secondary);border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .2s}
.tab:hover{color:var(--theme-primary)}
.tab.active{color:var(--theme-primary);border-bottom-color:var(--theme-primary);font-weight:600}

/* ---------- 详情页 ---------- */
.detail-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.detail-item{padding:12px 16px;background:var(--bg);border-radius:var(--radius-md)}
.detail-label{font-size:12px;color:var(--text-muted);margin-bottom:4px}
.detail-value{font-size:14px;color:var(--text);font-weight:500;word-break:break-all}
.detail-row{padding:8px 0;border-bottom:1px solid var(--border-light);font-size:14px}
.detail-row:last-child{border-bottom:none}
.detail-row .detail-label{display:inline-block;width:80px;color:var(--text-muted)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:20px}
.timeline::before{content:"";position:absolute;left:6px;top:0;bottom:0;width:2px;background:var(--border)}
.timeline-item{position:relative;padding:0 0 16px 20px}
.timeline-item::before{content:"";position:absolute;left:-20px;top:4px;width:10px;height:10px;border-radius:50%;background:var(--theme-primary);border:2px solid #fff;box-shadow:0 0 0 2px var(--theme-primary)}
.timeline-time{font-size:12px;color:var(--text-muted);margin-bottom:4px}
.timeline-content{font-size:14px;color:var(--text)}

/* ---------- 链接hover下划线动画（排除nav链接和按钮） ---------- */
a:not(.nav-icon-item):not(.nav-leaf):not(.nav-sub-link):not(.nav-toolbar-item):not(.nav-user-info):not(.btn):not(.dock-btn){position:relative;text-decoration:none;color:var(--theme-primary);transition:color .2s}
a:not(.nav-icon-item):not(.nav-leaf):not(.nav-sub-link):not(.nav-toolbar-item):not(.nav-user-info):not(.btn):not(.dock-btn)::after{content:'';position:absolute;bottom:-2px;left:0;width:0;height:2px;background:linear-gradient(90deg,var(--theme-primary),var(--theme-accent));transition:width .3s;border-radius:1px}
a:not(.nav-icon-item):not(.nav-leaf):not(.nav-sub-link):not(.nav-toolbar-item):not(.nav-user-info):not(.btn):not(.dock-btn):hover::after{width:100%}

/* ---------- 响应式 ---------- */
@media(max-width:768px){
    .nav-panel{display:none}
    .stats-grid,.stat-cards{grid-template-columns:1fr}
    .form-row{flex-direction:column}
    .search-bar{flex-direction:column;align-items:stretch}
    .main-content{padding:12px}
    .page-card-body{padding:16px}
}

/* ---------- Tailwind 间距类 fallback（确保 JIT 编译失败时图标间距仍生效） ---------- */
.mr-1{margin-right:4px}.mr-1\.5{margin-right:6px}.mr-2{margin-right:8px}.mr-3{margin-right:12px}
.ml-1{margin-left:4px}.ml-1\.5{margin-left:6px}.ml-2{margin-left:8px}.ml-3{margin-left:12px}
.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}
.mb-1{margin-bottom:4px}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}.mb-4{margin-bottom:16px}
.gap-1{gap:4px}.gap-1\.5{gap:6px}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}
.flex{display:flex}.inline-flex{display:inline-flex}.items-center{align-items:center}.justify-between{justify-content:space-between}
.hidden{display:none}.text-center{text-align:center}.text-sm{font-size:14px}.text-xs{font-size:12px}.text-lg{font-size:16px}.text-3xl{font-size:30px}
.font-bold{font-weight:700}.font-medium{font-weight:500}
.p-2{padding:8px}.p-3{padding:12px}.p-4{padding:16px}.p-6{padding:24px}.py-1{padding-top:4px;padding-bottom:4px}.py-2{padding-top:8px;padding-bottom:8px}.py-4{padding-top:16px;padding-bottom:16px}.px-2{padding-left:8px;padding-right:8px}.px-3{padding-left:12px;padding-right:12px}.px-4{padding-left:16px;padding-right:16px}.px-5{padding-left:20px;padding-right:20px}.px-6{padding-left:24px;padding-right:24px}
.w-full{width:100%}.h-screen{height:100vh}.min-h-screen{min-height:100vh}
.col-span-full{grid-column:1/-1}.grid{display:grid}
.rounded{border-radius:4px}.rounded-sm{border-radius:6px}.rounded-md{border-radius:10px}.rounded-lg{border-radius:8px}.rounded-xl{border-radius:16px}
.border{border:1px solid #f3f4f6}.border-b{border-bottom:1px solid #f3f4f6}
.bg-white{background:#fff}.bg-gray-50{background:#f9fafb}.bg-gray-100{background:#f3f4f6}
.text-gray-100{color:#f3f4f6}.text-gray-300{color:#d1d5db}.text-gray-400{color:#9ca3af}.text-gray-500{color:#6b7280}.text-gray-600{color:#4b5563}.text-gray-700{color:#374151}.text-gray-800{color:#1f2937}
.text-blue-500{color:#3b82f6}.text-orange-500{color:#f97316}.text-red-500{color:#ef4444}.text-green-500{color:#10b981}.text-purple-500{color:#a855f7}
.border-gray-100{border-color:#f3f4f6}.border-gray-200{border-color:#e5e7eb}.border-orange-200{border-color:#fed7aa}
.hover\:bg-gray-50:hover{background:#f9fafb}.hover\:bg-orange-50:hover{background:#fff7ed}
.hover\:text-gray-600:hover{color:#4b5563}.hover\:text-gray-700:hover{color:#374151}.hover\:text-orange-600:hover{color:#ea580c}
.transition-colors{transition:color .15s,background-color .15s,border-color .15s}.transition-opacity{transition:opacity .15s}
.hover\:opacity-90:hover{opacity:.9}
.space-y-4 > * + *{margin-top:16px}
.grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}
@media(min-width:768px){.md\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.lg\:grid-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}}
.opacity-30{opacity:.3}

/* 1级菜单（72px纯图标栏） */
.nav-iconbar{width:72px;background:linear-gradient(180deg,#fff 0%,#f9fafb 100%);border-right:1px solid #e8ecf1;flex-shrink:0;display:flex;flex-direction:column;box-shadow:2px 0 12px rgba(0,0,0,.06);z-index:10;position:relative}
.nav-logo-icon{width:44px;height:44px;background:linear-gradient(135deg,var(--theme-primary) 0%,var(--theme-primary-dark) 100%);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;margin:16px auto 20px;box-shadow:0 4px 16px var(--theme-shadow);transition:all .2s ease;overflow:hidden}
.nav-logo-icon:hover{transform:scale(1.08);box-shadow:0 6px 20px var(--theme-shadow)}
.nav-icon-item{width:100%;display:flex;align-items:center;justify-content:center;flex-direction:column;padding:10px 0;margin-bottom:2px;color:#6b7280;cursor:pointer;transition:all .2s ease;border-left:4px solid transparent;position:relative;text-decoration:none}
.nav-icon-item i{font-size:20px;width:24px;text-align:center;flex-shrink:0;transition:all .2s ease}
.nav-icon-item svg{width:20px;height:20px;flex-shrink:0;transition:all .2s ease}
.nav-icon-label{display:block;font-size:11px;color:#9ca3af;margin-top:3px;text-align:center;line-height:1.2;white-space:nowrap;transition:color .2s}
.nav-icon-item:hover{background:linear-gradient(90deg,var(--theme-primary-light) 0%,rgba(239,246,255,.3) 100%);color:var(--theme-primary);text-decoration:none}
.nav-icon-item:hover i,.nav-icon-item:hover svg{transform:scale(1.15)}
.nav-icon-item.active{background:linear-gradient(90deg,var(--theme-primary-light) 0%,rgba(239,246,255,.5) 100%);color:var(--theme-primary);border-left-color:var(--theme-primary)}
.nav-icon-item.active i,.nav-icon-item.active svg{transform:scale(1.2);filter:drop-shadow(0 2px 4px var(--theme-shadow))}
.nav-icon-item.active .nav-icon-label{color:var(--theme-primary);font-weight:600}

/* 2级菜单（180px面板） */
.nav-panel{width:180px;background:linear-gradient(180deg,#fff 0%,#fafbfc 100%);border-right:1px solid #e8ecf1;flex-shrink:0;overflow-y:auto;padding:16px 0;box-shadow:2px 0 8px rgba(0,0,0,.03);transition:width .3s ease}
.nav-panel::-webkit-scrollbar{width:4px}
.nav-panel::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:4px}
.nav-group-title{display:flex;align-items:center;gap:6px;padding:12px 18px 8px;font-size:14px;font-weight:700;color:#9ca3af;letter-spacing:.05em;cursor:pointer;transition:all .2s;border-bottom:1px solid #f3f4f6;margin:0 8px 4px;border-radius:var(--radius-sm);text-decoration:none}
.nav-group-title:hover{color:var(--theme-primary);background:linear-gradient(90deg,var(--theme-primary-hover) 0%,transparent 100%);text-decoration:none}
.nav-group-title .arrow{font-size:12px;color:#9ca3af;margin-left:auto;transition:transform .3s,color .3s;display:inline-block}
.nav-group-title.open .arrow{transform:rotate(180deg);color:var(--theme-primary)}
.nav-group-content{overflow:hidden;max-height:0;transition:max-height .3s ease-out}
.nav-group-content.open{max-height:600px}
.nav-leaf{display:block;padding:10px 18px 10px 32px;font-size:14px;font-weight:450;color:#4b5563;text-decoration:none;transition:all .2s;border-left:3px solid transparent;position:relative;margin:2px 8px}
.nav-leaf::before{content:'';position:absolute;left:20px;top:50%;transform:translateY(-50%);width:4px;height:4px;border-radius:50%;background:#d1d5db;transition:all .2s}
.nav-leaf:hover{background:linear-gradient(90deg,var(--theme-primary-hover) 0%,transparent 100%);color:var(--theme-primary);padding-left:36px;text-decoration:none}
.nav-leaf:hover::before{background:var(--theme-primary);width:6px;height:6px;box-shadow:0 0 8px var(--theme-shadow)}
.nav-leaf.active{background:linear-gradient(90deg,var(--theme-primary-light) 0%,rgba(239,246,255,.4) 100%);color:var(--theme-primary);font-weight:700;border-left-color:var(--theme-primary)}
.nav-leaf.active::before{background:var(--theme-primary);width:8px;height:8px;box-shadow:0 0 12px var(--theme-shadow)}
.nav-sub-link{display:block;padding:10px 18px;font-size:14px;font-weight:450;color:#4b5563;text-decoration:none;transition:all .2s;border-left:3px solid transparent;margin:2px 8px}
.nav-sub-link:hover{background:linear-gradient(90deg,var(--theme-primary-hover) 0%,transparent 100%);color:var(--theme-primary);padding-left:24px;text-decoration:none}
.nav-sub-link.active{background:linear-gradient(90deg,var(--theme-primary-light) 0%,rgba(239,246,255,.4) 100%);color:var(--theme-primary);font-weight:700;border-left-color:var(--theme-primary)}

/* 主内容区 */
.main-content{flex:1;overflow-y:auto;background:#f9fafb;min-width:0}

/* 底部工具区 */
.nav-toolbar{margin-top:auto;margin-bottom:16px;padding:8px 0;border-top:1px solid #e8ecf1}
.nav-user-info{display:flex;align-items:center;justify-content:center;padding:12px 0;cursor:pointer;transition:all .2s}
.nav-user-info i{font-size:28px;color:var(--theme-primary);transition:all .2s}
.nav-user-info:hover i{transform:scale(1.1);filter:drop-shadow(0 2px 8px var(--theme-shadow))}
.nav-toolbar-item{display:flex;align-items:center;justify-content:center;padding:12px 0;color:#6b7280;text-decoration:none;transition:all .2s;border-left:4px solid transparent;cursor:pointer}
.nav-toolbar-item i{font-size:18px;width:24px;text-align:center;transition:all .2s}
.nav-toolbar-item:hover{background:linear-gradient(90deg,var(--theme-primary-light) 0%,transparent 100%);color:var(--theme-primary);text-decoration:none}
.nav-toolbar-item:hover i{transform:scale(1.15)}
.nav-toolbar-item.logout{color:#ef4444}
.nav-toolbar-item.logout:hover{background:linear-gradient(90deg,#fef2f2 0%,transparent 100%);color:#dc2626}