/* ===== 全局重置 ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB',sans-serif;background:#F2F4F7;color:#1A1D23;font-size:14px;overflow-x:hidden}
a{text-decoration:none;color:inherit}
button{cursor:pointer;border:none;outline:none;font-family:inherit}
input,select,textarea{font-family:inherit;outline:none}
table{border-collapse:collapse;width:100%}

/* ===== CSS 变量 ===== */
:root{
  --primary:#2EAA76;
  --primary-dark:#1E8A5E;
  --primary-light:#E8F7F1;
  --danger:#E05252;
  --warning:#F5A623;
  --info:#3B82F6;
  --sidebar-w:240px;
  --header-h:60px;
  --radius:10px;
  --shadow:0 2px 12px rgba(0,0,0,0.08);
  --shadow-sm:0 1px 4px rgba(0,0,0,0.06);
  --border:#E8EAED;
}

/* ===== 布局 ===== */
.layout{display:flex;min-height:100vh}

/* ===== 侧边栏 ===== */
.sidebar{
  width:var(--sidebar-w);
  background:#14181F;
  display:flex;
  flex-direction:column;
  flex-shrink:0;
  position:fixed;
  top:0;left:0;bottom:0;
  z-index:100;
  overflow-y:auto;
}
.sidebar-logo{
  display:flex;align-items:center;gap:12px;
  padding:20px 20px 16px;
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.sidebar-logo-icon{
  width:36px;height:36px;
  background:linear-gradient(135deg,#2EAA76,#5BCCA0);
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;flex-shrink:0;
}
.sidebar-logo-text{color:#fff;font-size:16px;font-weight:700;line-height:1.2}
.sidebar-logo-sub{color:#666;font-size:11px}
.sidebar-section{margin-top:8px;padding:0 12px}
.sidebar-section-label{color:#444;font-size:11px;font-weight:600;letter-spacing:1px;padding:12px 8px 6px;text-transform:uppercase}
.nav-item{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:8px;
  color:#9AA0AC;font-size:13.5px;font-weight:500;
  cursor:pointer;transition:all .15s;
  margin-bottom:2px;
}
.nav-item:hover{background:rgba(255,255,255,0.06);color:#D0D4DC}
.nav-item.active{background:var(--primary);color:#fff}
.nav-item-icon{font-size:16px;width:20px;text-align:center;flex-shrink:0}
.nav-badge{background:#E05C5C;color:#fff;font-size:11px;padding:1px 6px;border-radius:10px;margin-left:auto}
.sidebar-bottom{
  margin-top:auto;
  padding:16px;
  border-top:1px solid rgba(255,255,255,0.06);
  color:#666;font-size:12px;
  text-align:center;
}

/* ===== 主区域 ===== */
.main-wrap{
  margin-left:var(--sidebar-w);
  flex:1;
  display:flex;
  flex-direction:column;
  min-height:100vh;
}
.topbar{
  height:var(--header-h);
  background:#fff;
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 28px;
  position:sticky;top:0;z-index:50;
  box-shadow:var(--shadow-sm);
}
.topbar-title{font-size:17px;font-weight:700;color:#1A1D23}
.topbar-right{display:flex;align-items:center;gap:16px}
.topbar-avatar{
  width:34px;height:34px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),#5BCCA0);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:14px;font-weight:700;
}
.topbar-user{font-size:13px;color:#555}

/* ===== 主内容 ===== */
.main-content{padding:24px 28px;flex:1}

/* ===== 页面切换 ===== */
.page{display:none}
.page.active{display:block}

/* ===== 统计卡 ===== */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.stat-card{
  background:#fff;border-radius:var(--radius);
  padding:20px 24px;
  box-shadow:var(--shadow-sm);
  display:flex;align-items:center;gap:16px;
}
.stat-icon{
  width:52px;height:52px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:22px;flex-shrink:0;
}
.stat-icon-green{background:#E8F7F1}
.stat-icon-blue{background:#EBF4FF}
.stat-icon-orange{background:#FFF4E8}
.stat-icon-red{background:#FFF0F0}
.stat-info{}
.stat-num{font-size:28px;font-weight:800;line-height:1;color:#1A1D23;margin-bottom:4px}
.stat-label{font-size:12px;color:#9AA0AC;font-weight:500}
.stat-sub{font-size:11px;margin-top:4px}
.stat-sub.warn{color:var(--warning)}
.stat-sub.ok{color:var(--primary)}

/* ===== 面板卡片 ===== */
.panel{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm);margin-bottom:20px}
.panel-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 24px;
  border-bottom:1px solid var(--border);
}
.panel-title{font-size:15px;font-weight:700;color:#1A1D23}
.panel-body{padding:16px 24px}
.panel-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}

/* ===== 表格 ===== */
.table-wrap{overflow-x:auto}
.tbl th,.tbl td{padding:12px 16px;text-align:left;font-size:13px;border-bottom:1px solid #F2F4F7}
.tbl th{background:#FAFBFC;color:#6B7280;font-weight:600;font-size:12px;letter-spacing:.5px;text-transform:uppercase}
.tbl tbody tr:hover{background:#FAFBFF}
.tbl td:first-child,.tbl th:first-child{padding-left:24px}
.tbl td:last-child,.tbl th:last-child{padding-right:24px}

/* ===== 标签徽章 ===== */
.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:600}
.badge-green{background:#E8F7F1;color:#1E8A5E}
.badge-orange{background:#FFF4E0;color:#C87C00}
.badge-red{background:#FFF0F0;color:#C0392B}
.badge-gray{background:#F2F4F7;color:#6B7280}
.badge-blue{background:#EBF4FF;color:#1A6AC4}
.badge-teal{background:#E0F7F4;color:#0E7C6E}
.badge-yellow{background:#FFFBEB;color:#B45309}
.badge-purple{background:#F3F0FF;color:#6D28D9}
.badge::before{content:'●';font-size:8px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:8px;font-size:13px;font-weight:600;transition:all .15s;cursor:pointer}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{background:transparent;color:var(--primary);border:1.5px solid var(--primary)}
.btn-outline:hover{background:var(--primary-light)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:#C0392B}
.btn-ghost{background:#F2F4F7;color:#555}
.btn-ghost:hover{background:#E8EAED}
.btn-sm{padding:5px 12px;font-size:12px}
.btn-xs{padding:3px 10px;font-size:12px;border-radius:6px}

/* ===== 工具栏 ===== */
.toolbar{
  display:flex;align-items:center;gap:10px;
  margin-bottom:16px;
  flex-wrap:wrap;
}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:#F5F6FA;border:1.5px solid var(--border);
  border-radius:8px;padding:7px 14px;
  min-width:220px;
}
.search-box input{background:transparent;border:none;font-size:13px;color:#333;width:100%}
.search-box input::placeholder{color:#AAB0BC}
.filter-select{
  background:#F5F6FA;border:1.5px solid var(--border);
  border-radius:8px;padding:8px 12px;
  font-size:13px;color:#333;
  cursor:pointer;
}

/* ===== 表单模态框 ===== */
.modal-mask{
  display:none;position:fixed;inset:0;
  background:rgba(0,0,0,0.4);z-index:200;
  align-items:center;justify-content:center;
}
.modal-mask.open{display:flex}
.modal{
  background:#fff;border-radius:16px;
  width:560px;max-width:95vw;max-height:88vh;
  overflow-y:auto;
  box-shadow:0 20px 60px rgba(0,0,0,0.2);
  animation:slideUp .2s ease;
}
@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}
.modal-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px 16px;
  border-bottom:1px solid var(--border);
}
.modal-title{font-size:16px;font-weight:700}
.modal-close{
  width:28px;height:28px;border-radius:50%;
  background:#F2F4F7;display:flex;align-items:center;justify-content:center;
  cursor:pointer;font-size:16px;color:#888;
}
.modal-close:hover{background:#E8EAED;color:#333}
.modal-body{padding:20px 24px}
.modal-foot{
  padding:12px 24px 20px;
  display:flex;justify-content:flex-end;gap:10px;
  border-top:1px solid var(--border);
}
.form-group{margin-bottom:16px}
.form-label{display:block;font-size:13px;font-weight:600;color:#444;margin-bottom:6px}
.form-input,.form-select,.form-textarea{
  width:100%;
  padding:10px 14px;
  border:1.5px solid var(--border);
  border-radius:8px;
  font-size:13px;
  color:#1A1D23;
  background:#fff;
  transition:border-color .15s;
}
.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--primary)}
.form-textarea{resize:vertical;min-height:80px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-hint{font-size:11px;color:#AAB0BC;margin-top:4px}
.file-upload-area{
  border:2px dashed var(--border);
  border-radius:8px;
  padding:24px;
  text-align:center;
  cursor:pointer;
  transition:all .15s;
  background:#FAFBFC;
}
.file-upload-area:hover{border-color:var(--primary);background:var(--primary-light)}
.file-upload-area input{display:none}
.file-upload-icon{font-size:28px;margin-bottom:8px}
.file-upload-text{font-size:13px;color:#888}
.file-upload-text span{color:var(--primary);font-weight:600}

/* ===== Dashboard 图表区 ===== */
.chart-bar-wrap{height:180px;display:flex;align-items:flex-end;gap:12px;padding:0 8px}
.chart-bar-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px}
.chart-bar{
  width:100%;border-radius:6px 6px 0 0;
  background:linear-gradient(to top,var(--primary),#5BCCA0);
  transition:height .5s ease;
}
.chart-bar-label{font-size:11px;color:#9AA0AC;font-weight:500}
.chart-bar-val{font-size:11px;color:#555;font-weight:600}
.order-status-pie{display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.pie-item{display:flex;align-items:center;gap:8px}
.pie-dot{width:10px;height:10px;border-radius:50%}
.pie-label{font-size:12px;color:#555}
.pie-num{font-size:13px;font-weight:700;color:#1A1D23;margin-left:4px}

/* ===== 图表圆环（纯CSS） ===== */
.donut-wrap{position:relative;width:120px;height:120px;margin:0 auto 16px}
.donut-wrap svg{transform:rotate(-90deg)}
.donut-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.donut-num{font-size:22px;font-weight:800;color:#1A1D23}
.donut-label{font-size:11px;color:#9AA0AC}

/* ===== Toast ===== */
.toast-wrap{position:fixed;top:72px;right:28px;z-index:999;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{
  background:#1A1D23;color:#fff;
  padding:10px 20px;border-radius:8px;
  font-size:13px;
  box-shadow:0 4px 16px rgba(0,0,0,0.2);
  animation:toastIn .2s ease;
  pointer-events:auto;
}
.toast.success{background:#1E8A5E}
.toast.error{background:var(--danger)}
@keyframes toastIn{from{transform:translateX(20px);opacity:0}to{transform:translateX(0);opacity:1}}

/* ===== 空状态 ===== */
.empty-state{text-align:center;padding:48px 0;color:#AAB0BC}
.empty-icon{font-size:40px;margin-bottom:12px}
.empty-text{font-size:14px}

/* ===== 仓储告警 ===== */
.warehouse-alert{
  background:linear-gradient(135deg,#FFF8EE,#FFF3E0);
  border:1.5px solid #FFD580;
  border-radius:var(--radius);
  padding:14px 20px;
  display:flex;align-items:center;gap:12px;
  margin-bottom:16px;
}
.warehouse-alert-icon{font-size:20px}
.warehouse-alert-text{font-size:13px;color:#A05A00;font-weight:500}

/* ===== 进度条 ===== */
.progress-bar-wrap{background:#F2F4F7;border-radius:4px;height:6px;overflow:hidden}
.progress-bar{height:100%;border-radius:4px;background:linear-gradient(to right,var(--primary),#5BCCA0)}
.progress-bar.warn{background:linear-gradient(to right,#F5A623,#F7C35A)}
.progress-bar.danger{background:linear-gradient(to right,var(--danger),#F07070)}

/* ===== 响应式 ===== */
@media(max-width:1100px){
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .panel-grid{grid-template-columns:1fr}
}

/* ===== 登录遮罩 ===== */
#login-overlay{position:fixed;inset:0;background:linear-gradient(135deg,#0f2027,#203a43,#2c5364);display:flex;align-items:center;justify-content:center;z-index:9999}
#login-overlay.hidden{display:none}
.login-box{background:#fff;border-radius:16px;padding:40px 44px;width:360px;box-shadow:0 20px 60px rgba(0,0,0,.35)}
.login-box h2{margin:0 0 6px;font-size:22px;color:#1a2433;text-align:center}
.login-box .login-sub{font-size:13px;color:#9AA0AC;text-align:center;margin-bottom:28px}
.login-field{margin-bottom:16px}
.login-field label{display:block;font-size:13px;color:#555;margin-bottom:6px;font-weight:500}
.login-field input{width:100%;box-sizing:border-box;border:1.5px solid #E5E9F0;border-radius:8px;padding:10px 12px;font-size:14px;outline:none;transition:border-color .2s}
.login-field input:focus{border-color:var(--primary)}
.login-err{font-size:12px;color:#e74c3c;min-height:18px;margin-bottom:8px;text-align:center}
.login-btn{width:100%;padding:11px;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:15px;cursor:pointer;font-weight:600;transition:opacity .2s}
.login-btn:hover{opacity:.88}
.login-btn:disabled{opacity:.55;cursor:not-allowed}
/* 退出按钮 */
.logout-btn{background:none;border:1px solid #ddd;border-radius:6px;padding:4px 10px;font-size:12px;cursor:pointer;color:#555;margin-left:8px}
.logout-btn:hover{background:#f5f5f5}