/* ===== 重置与基础 ===== */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg-main:#0d1117;
  --bg-card:#161b22;
  --bg-sidebar:#0f1419;
  --bg-hover:#1c2128;
  --bg-input:#0d1117;
  --border:#30363d;
  --border-light:#21262d;
  --text-primary:#e6edf3;
  --text-secondary:#8b949e;
  --text-muted:#6e7681;
  --accent:#3b82f6;
  --accent-hover:#2563eb;
  --accent-light:rgba(59,130,246,0.12);
  --success:#22c55e;
  --success-light:rgba(34,197,94,0.12);
  --warning:#f59e0b;
  --warning-light:rgba(245,158,11,0.12);
  --danger:#ef4444;
  --danger-light:rgba(239,68,68,0.12);
  --purple:#a855f7;
  --radius:8px;
  --sidebar-w:240px;
}
html,body{height:100%;overflow:hidden}
body{
  font-family:"Segoe UI","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg-main);
  color:var(--text-primary);
  font-size:14px;
  display:flex;
}

/* ===== 侧边栏 ===== */
.sidebar{
  width:var(--sidebar-w);
  background:var(--bg-sidebar);
  border-right:1px solid var(--border);
  display:flex;
  flex-direction:column;
  transition:width .3s;
  flex-shrink:0;
  z-index:100;
}
.sidebar.collapsed{width:60px}
.sidebar.collapsed .logo-text,.sidebar.collapsed .nav-item span:not(.nav-icon),.sidebar.collapsed .sidebar-footer{display:none}
.sidebar.collapsed .nav-item{justify-content:center}

.sidebar-header{
  padding:20px 16px;
  border-bottom:1px solid var(--border);
}
.logo{display:flex;align-items:center;gap:10px}
.logo-icon{font-size:28px}
.logo-text{display:flex;flex-direction:column}
.logo-title{font-size:16px;font-weight:700;color:var(--text-primary)}
.logo-sub{font-size:12px;color:var(--text-secondary)}

.nav-menu{flex:1;padding:12px 8px;overflow-y:auto}
.nav-item{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:var(--radius);
  cursor:pointer;
  color:var(--text-secondary);
  text-decoration:none;
  font-size:14px;
  margin-bottom:4px;
  transition:all .15s;
  position:relative;
}
.nav-item:hover{background:var(--bg-hover);color:var(--text-primary)}
.nav-item.active{background:var(--accent-light);color:var(--accent);font-weight:600}
.nav-icon{font-size:18px;width:20px;text-align:center;flex-shrink:0}
.nav-badge{
  position:absolute;
  right:10px;
  background:var(--danger);
  color:#fff;
  font-size:11px;
  min-width:18px;
  height:18px;
  border-radius:9px;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:0 5px;
}

.sidebar-footer{padding:16px;border-top:1px solid var(--border)}
.company-info p{font-size:12px;color:var(--text-muted);margin-bottom:4px}
.nav-divider{height:1px;background:var(--border);margin:8px 16px}
#cloudStatus{color:var(--text-secondary);transition:color .3s}
#cloudStatus.connected{color:var(--success)}
#cloudStatus.warning{color:var(--warning)}

/* ===== 主内容 ===== */
.main-content{
  flex:1;
  display:flex;
  flex-direction:column;
  overflow:hidden;
}

/* 顶部栏 */
.topbar{
  height:60px;
  background:var(--bg-card);
  border-bottom:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 24px;
  flex-shrink:0;
}
.topbar-left{display:flex;align-items:center;gap:16px}
.topbar-left h1{font-size:18px;font-weight:600}
.menu-toggle{
  background:none;border:none;color:var(--text-secondary);
  font-size:20px;cursor:pointer;padding:4px;
}
.menu-toggle:hover{color:var(--text-primary)}

.topbar-right{display:flex;align-items:center;gap:16px}

/* 搜索框 */
.search-box{
  position:relative;
  width:320px;
}
.search-box input{
  width:100%;
  background:var(--bg-input);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:8px 12px 8px 36px;
  color:var(--text-primary);
  font-size:14px;
  outline:none;
  transition:border-color .15s;
}
.search-box input:focus{border-color:var(--accent)}
.search-icon{
  position:absolute;left:10px;top:50%;transform:translateY(-50%);
  font-size:14px;pointer-events:none;
}
.search-btn{
  position:absolute;right:4px;top:50%;transform:translateY(-50%);
  width:32px;height:32px;
  background:var(--accent);color:#fff;
  border:none;border-radius:6px;
  cursor:pointer;font-size:14px;
  display:flex;align-items:center;justify-content:center;
  transition:background .15s;
}
.search-btn:hover{background:var(--accent-hover)}
.search-box input{
  padding-right:42px;
}
.search-results{
  position:absolute;
  top:calc(100% + 4px);
  left:0;right:0;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  max-height:400px;
  overflow-y:auto;
  box-shadow:0 8px 24px rgba(0,0,0,0.4);
  z-index:50;
}
.search-result-item{
  padding:10px 14px;
  border-bottom:1px solid var(--border-light);
  cursor:pointer;
  display:flex;
  justify-content:space-between;
  align-items:center;
  transition:background .1s;
}
.search-result-item:hover{background:var(--bg-hover)}
.search-result-item:last-child{border-bottom:none}
.sr-name{font-weight:600;color:var(--text-primary)}
.sr-spec{font-size:12px;color:var(--text-secondary)}
.sr-stock{font-size:13px;font-weight:600;white-space:nowrap;margin-left:12px}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 16px;
  border:none;
  border-radius:var(--radius);
  cursor:pointer;
  font-size:14px;
  font-weight:600;
  transition:all .15s;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover)}
.btn-secondary{background:var(--bg-hover);color:var(--text-primary)}
.btn-secondary:hover{background:var(--border)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:#dc2626}
.btn-success{background:var(--success);color:#fff}
.btn-success:hover{background:#16a34a}
.btn-sm{padding:4px 10px;font-size:12px}
.btn-ghost{background:transparent;color:var(--text-secondary);padding:4px 8px}
.btn-ghost:hover{color:var(--text-primary);background:var(--bg-hover)}

/* 页面容器 */
.page-container{
  flex:1;
  padding:24px;
  overflow-y:auto;
}

/* ===== 仪表盘 ===== */
.stat-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:16px;
  margin-bottom:24px;
}
.stat-card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:12px;
  padding:20px;
  display:flex;
  align-items:center;
  gap:16px;
  transition:transform .15s;
}
.stat-card:hover{transform:translateY(-2px)}
.stat-icon{
  width:48px;height:48px;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:24px;
  flex-shrink:0;
}
.stat-info{flex:1}
.stat-label{font-size:13px;color:var(--text-secondary);margin-bottom:4px}
.stat-value{font-size:24px;font-weight:700}
.stat-sub{font-size:12px;color:var(--text-muted);margin-top:2px}

.dash-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-bottom:16px;
}
.dash-panel{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:12px;
  overflow:hidden;
}
.dash-panel-header{
  padding:16px 20px;
  border-bottom:1px solid var(--border);
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.dash-panel-header h3{font-size:15px;font-weight:600}
.dash-panel-body{padding:8px 0}

/* ===== 表格 ===== */
.data-table{
  width:100%;
  border-collapse:collapse;
}
.data-table th{
  text-align:left;
  padding:10px 16px;
  font-size:12px;
  font-weight:600;
  color:var(--text-secondary);
  border-bottom:1px solid var(--border);
  white-space:nowrap;
  position:sticky;
  top:0;
  background:var(--bg-card);
  z-index:1;
}
.data-table td{
  padding:10px 16px;
  font-size:13px;
  border-bottom:1px solid var(--border-light);
}
.data-table tr:hover td{background:var(--bg-hover)}
.data-table tr:last-child td{border-bottom:none}

/* 标签 */
.tag{
  display:inline-block;
  padding:2px 8px;
  border-radius:4px;
  font-size:12px;
  font-weight:600;
}
.tag-blue{background:var(--accent-light);color:var(--accent)}
.tag-green{background:var(--success-light);color:var(--success)}
.tag-yellow{background:var(--warning-light);color:var(--warning)}
.tag-red{background:var(--danger-light);color:var(--danger)}
.tag-purple{background:rgba(168,85,247,0.12);color:var(--purple)}
.tag-gray{background:rgba(110,118,129,0.15);color:var(--text-secondary)}

/* 库存条 */
.stock-bar{
  width:80px;
  height:6px;
  background:var(--bg-input);
  border-radius:3px;
  overflow:hidden;
  display:inline-block;
  vertical-align:middle;
  margin-left:8px;
}
.stock-bar-fill{height:100%;border-radius:3px;transition:width .3s}

/* ===== 筛选栏 ===== */
.filter-bar{
  display:flex;
  gap:12px;
  margin-bottom:16px;
  flex-wrap:wrap;
  align-items:center;
}
.filter-bar select,
.filter-bar input{
  background:var(--bg-input);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:8px 12px;
  color:var(--text-primary);
  font-size:13px;
  outline:none;
}
.filter-bar select:focus,
.filter-bar input:focus{border-color:var(--accent)}
.filter-spacer{flex:1}

/* ===== 弹窗 ===== */
.modal-overlay{
  position:fixed;
  top:0;left:0;right:0;bottom:0;
  background:rgba(0,0,0,0.6);
  display:none;
  align-items:center;
  justify-content:center;
  z-index:200;
}
.modal-overlay.show{display:flex}
.modal{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:12px;
  width:560px;
  max-width:92vw;
  max-height:92vh;
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.modal-header{
  padding:16px 20px;
  border-bottom:1px solid var(--border);
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.modal-header h2{font-size:17px;font-weight:600}
.modal-close{
  background:none;border:none;
  color:var(--text-secondary);
  font-size:18px;cursor:pointer;
  padding:4px;
}
.modal-close:hover{color:var(--text-primary)}
.modal-body{padding:20px;overflow-y:auto;flex:1}
.modal-footer{
  padding:16px 20px;
  border-top:1px solid var(--border);
  display:flex;
  justify-content:flex-end;
  gap:10px;
}

/* 表单 */
.form-row{display:flex;gap:16px;margin-bottom:16px}
.form-group{flex:1}
.form-group label{
  display:block;
  font-size:13px;
  color:var(--text-secondary);
  margin-bottom:6px;
  font-weight:500;
}
.form-group .req{color:var(--danger)}
.form-group input,
.form-group select{
  width:100%;
  background:var(--bg-input);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:8px 12px;
  color:var(--text-primary);
  font-size:14px;
  outline:none;
  transition:border-color .15s;
}
.form-group input:focus,
.form-group select:focus{border-color:var(--accent)}

.item-info-box{
  background:var(--bg-input);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:12px;
  margin-bottom:16px;
}
.item-info-box .info-name{font-weight:600;font-size:15px;margin-bottom:4px}
.item-info-box .info-row{display:flex;gap:20px;font-size:13px;color:var(--text-secondary)}

.stock-preview{
  background:var(--accent-light);
  border:1px solid var(--accent);
  border-radius:var(--radius);
  padding:12px;
  margin-bottom:16px;
  font-size:14px;
}
.stock-preview .preview-label{color:var(--text-secondary);font-size:12px;margin-bottom:4px}
.stock-preview .preview-value{font-size:20px;font-weight:700}
.stock-preview.danger{background:var(--danger-light);border-color:var(--danger)}

/* Toast */
.toast-container{
  position:fixed;
  top:20px;right:20px;
  z-index:300;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.toast{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:12px 20px;
  display:flex;
  align-items:center;
  gap:10px;
  min-width:280px;
  box-shadow:0 4px 12px rgba(0,0,0,0.3);
  animation:slideIn .3s ease;
}
.toast.success{border-left:3px solid var(--success)}
.toast.error{border-left:3px solid var(--danger)}
.toast.info{border-left:3px solid var(--accent)}
.toast.warning{border-left:3px solid var(--warning)}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}
.toast-icon{font-size:18px}
.toast-msg{font-size:14px}

/* 空状态 */
.empty-state{
  text-align:center;
  padding:60px 20px;
  color:var(--text-muted);
}
.empty-state .empty-icon{font-size:48px;margin-bottom:12px;opacity:.5}
.empty-state p{font-size:14px}

/* 搜索页面 */
.search-page-hero{
  text-align:center;
  padding:40px 20px;
  margin-bottom:24px;
}
.search-page-hero h2{font-size:24px;margin-bottom:8px}
.search-page-hero p{color:var(--text-secondary);margin-bottom:24px}
.search-page-input{
  width:100%;
  max-width:600px;
  margin:0 auto;
  position:relative;
}
.search-page-input input{
  width:100%;
  background:var(--bg-card);
  border:2px solid var(--border);
  border-radius:12px;
  padding:14px 20px;
  color:var(--text-primary);
  font-size:16px;
  outline:none;
  transition:border-color .15s;
}
.search-page-input input:focus{border-color:var(--accent)}
.sp-search-btn{
  margin-top:12px;
  background:var(--accent);color:#fff;
  border:none;border-radius:8px;
  padding:10px 28px;
  cursor:pointer;font-size:15px;
  transition:background .15s;
}
.sp-search-btn:hover{background:var(--accent-hover)}

.search-results-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:16px;
}
.result-card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:12px;
  padding:16px;
  transition:transform .15s,border-color .15s;
}
.result-card:hover{transform:translateY(-2px);border-color:var(--accent)}
.result-card .rc-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:10px}
.result-card .rc-name{font-size:16px;font-weight:600}
.result-card .rc-spec{font-size:13px;color:var(--text-secondary);margin-bottom:8px}
.result-card .rc-stock-row{display:flex;justify-content:space-between;align-items:center;margin-top:8px}
.result-card .rc-stock-label{font-size:13px;color:var(--text-secondary)}
.result-card .rc-stock-val{font-size:20px;font-weight:700}
.result-card .rc-meta{font-size:12px;color:var(--text-muted);margin-top:8px;padding-top:8px;border-top:1px solid var(--border-light)}

/* 快捷分类按钮 */
.quick-cats{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  justify-content:center;
  margin-bottom:20px;
}
.quick-cat{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:20px;
  padding:6px 16px;
  font-size:13px;
  color:var(--text-secondary);
  cursor:pointer;
  transition:all .15s;
}
.quick-cat:hover{border-color:var(--accent);color:var(--accent)}
.quick-cat.active{background:var(--accent);color:#fff;border-color:var(--accent)}

/* 分类管理 */
.cat-item-row:hover{background:var(--bg-hover) !important}
.cat-name-display:hover{color:var(--accent)}
.icon-option:hover,.color-option:hover{background:var(--bg-hover) !important}
.icon-option.active,.color-option.active{background:var(--accent-light) !important}

/* 颜色标签扩展 */
.tag-teal{background:rgba(20,184,166,0.15);color:#14b8a6}
.tag-orange{background:rgba(249,115,22,0.15);color:#f97316}
.tag-pink{background:rgba(236,72,153,0.15);color:#ec4899}
.tag-indigo{background:rgba(99,102,241,0.15);color:#6366f1}

/* 响应式 */
@media(max-width:1024px){
  .dash-row{grid-template-columns:1fr}
  .search-box{width:200px}
}
@media(max-width:768px){
  .sidebar{position:fixed;left:-240px;height:100vh}
  .sidebar.mobile-show{left:0}
  .search-box{display:none}
  .form-row{flex-direction:column}
}

/* 滚动条 */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:#484f58}

/* 操作图标按钮 */
.icon-btn{
  background:none;
  border:none;
  cursor:pointer;
  font-size:16px;
  padding:4px 6px;
  border-radius:4px;
  transition:background .15s;
}
.icon-btn:hover{background:var(--bg-hover)}
.icon-btn.edit:hover{color:var(--accent)}
.icon-btn.delete:hover{color:var(--danger)}

/* 数字高亮 */
.num-high{font-weight:700;color:var(--accent)}
.text-success{color:var(--success)}
.text-danger{color:var(--danger)}
.text-warning{color:var(--warning)}
.text-muted{color:var(--text-muted)}

/* ===== 密码验证遮罩 ===== */
.auth-overlay{
  position:fixed;inset:0;z-index:9999;
  background:linear-gradient(135deg,#0f172a 0%,#1e293b 100%);
  display:flex;align-items:center;justify-content:center;
}
.auth-overlay.hidden{display:none}
.auth-box{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:20px;
  padding:48px 40px;
  width:380px;max-width:90vw;
  text-align:center;
  box-shadow:0 20px 60px rgba(0,0,0,.4);
}
.auth-icon{font-size:48px;margin-bottom:16px}
.auth-box h2{font-size:22px;margin-bottom:8px}
.auth-hint{font-size:14px;color:var(--text-muted);margin-bottom:24px}
.auth-input-wrap{display:flex;gap:8px}
.auth-input-wrap input{
  flex:1;
  background:var(--bg-input);
  border:1px solid var(--border);
  border-radius:8px;
  padding:12px 16px;
  color:var(--text);
  font-size:15px;
  outline:none;
}
.auth-input-wrap input:focus{border-color:var(--accent)}
.auth-btn{
  background:var(--accent);
  color:#fff;border:none;
  border-radius:8px;
  padding:0 24px;
  font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;
}
.auth-btn:hover{background:var(--accent-hover)}
.auth-error{color:var(--danger);font-size:13px;margin-top:16px;min-height:20px}

/* 出入库记录删除按钮 */
.txn-del-btn{
  background:rgba(244,63,94,.1);border:1px solid rgba(244,63,94,.3);
  color:var(--danger);font-size:12px;
  cursor:pointer;padding:4px 12px;border-radius:6px;
  transition:all .15s;font-weight:600;
}
.txn-del-btn:hover{
  background:var(--danger);color:#fff;border-color:var(--danger);
}