/* 设备管理平台 — 全局主题 */
:root {
  --app-font: "Inter", "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --app-mono: "JetBrains Mono", "SF Mono", "Consolas", monospace;
  --app-bg: #f0f4f8;
  --app-sidebar-from: #0f172a;
  --app-sidebar-to: #1e293b;
  --app-sidebar-accent: #38bdf8;
  --app-card-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 16px rgba(15, 23, 42, 0.04);
  --app-radius: 12px;
  --app-radius-sm: 8px;
  --el-color-primary: #3b82f6;
  --el-color-primary-hover: #60a5fa;
  --el-color-primary-light: #dbeafe;
  --el-text-color-primary: #1e293b;
  --el-text-color-regular: #475569;
  --el-text-color-secondary: #64748b;
  --el-text-color-disabled: #94a3b8;
  --el-border-color: #e2e8f0;
  --el-border-color-lighter: #f1f5f9;
  --el-fill-color: #f8fafc;
  --el-fill-color-light: #f8fafc;
  --el-color-success: #22c55e;
  --el-color-warning: #f59e0b;
  --el-color-danger: #ef4444;
  --el-color-info: #94a3b8;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  margin: 0;
  font-family: var(--app-font);
  font-size: 14px;
  color: var(--el-text-color-primary);
  background-color: var(--app-bg);
  background-image: radial-gradient(circle at 1px 1px, rgba(148, 163, 184, 0.14) 1px, transparent 0);
  background-size: 28px 28px;
  line-height: 1.5;
}

/* Author-level button display rules must not override semantic hidden controls. */
[hidden] {
  display: none !important;
}

a { color: var(--el-color-primary); text-decoration: none; }
a:hover { color: var(--el-color-primary-hover); text-decoration: underline; }

/* Layout */
.app-layout { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: 232px;
  flex-shrink: 0;
  background: linear-gradient(180deg, var(--app-sidebar-from) 0%, var(--app-sidebar-to) 100%);
  box-shadow: 4px 0 24px rgba(15, 23, 42, 0.12);
  display: flex;
  flex-direction: column;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 22px 18px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.brand-icon svg {
  width: 32px;
  height: 32px;
  color: var(--app-sidebar-accent);
}

.brand-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }

.brand-title {
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
}

.brand-sub {
  color: rgba(248, 250, 252, 0.45);
  font-size: 11px;
  font-weight: 500;
}

/* Side Menu */
.side-menu { flex: 1; padding: 12px 8px 24px; }
/* 权限未就绪时隐藏，避免整页跳转后先渲染默认菜单再被 JS 改写的闪烁（仅前台工作台） */
body:not(.admin-shell) .side-menu:not(.menu-ready) { visibility: hidden; }

/* 侧栏贴视口：菜单过长只滚中间，底部操作始终钉在左下角 */
body:not(.admin-shell) .sidebar {
  position: sticky;
  top: 0;
  align-self: flex-start;
  height: 100vh;
  height: 100dvh;
  max-height: 100vh;
  max-height: 100dvh;
  overflow: hidden;
}

body:not(.admin-shell) .sidebar .brand {
  flex-shrink: 0;
}

body:not(.admin-shell) .side-menu {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-bottom: 12px;
  scrollbar-width: thin;
  scrollbar-color: rgba(148, 163, 184, 0.4) transparent;
}

body:not(.admin-shell) .side-menu::-webkit-scrollbar {
  width: 6px;
}

body:not(.admin-shell) .side-menu::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.35);
  border-radius: 999px;
}

.sidebar-footer {
  flex-shrink: 0;
  margin-top: auto;
  padding: 12px 8px 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.92), #1e293b);
}

.sidebar-footer .menu-item-secondary {
  background: rgba(56, 189, 248, 0.08);
  color: rgba(248, 250, 252, 0.82);
}

.sidebar-footer .menu-item-secondary:hover {
  background: rgba(56, 189, 248, 0.18);
  color: #ffffff;
}

.sidebar-footer.hidden { display: none; }

.menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 14px;
  height: 46px;
  border-radius: 10px;
  margin: 2px 0;
  font-weight: 500;
  color: rgba(248, 250, 252, 0.72);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  font-size: 14px;
  position: relative;
}

.menu-item:hover {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(248, 250, 252, 0.9);
  text-decoration: none;
}

.menu-item.active {
  background: linear-gradient(90deg, rgba(56, 189, 248, 0.25), rgba(56, 189, 248, 0.05));
  color: #fff;
  box-shadow: inset 3px 0 0 var(--app-sidebar-accent);
}

.menu-item .menu-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.menu-item .menu-icon svg {
  width: 18px;
  height: 18px;
}

.menu-item.hidden { display: none; }

/* Right column */
.right-col { flex: 1; display: flex; flex-direction: column; min-width: 0; }

/* Header */
.app-header {
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 28px 16px;
  box-sizing: border-box;
  background: #fff;
  border-bottom: 1px solid var(--el-border-color-lighter);
  box-shadow: none;
  overflow: visible;
}

.page-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--el-text-color-primary);
  letter-spacing: 0.02em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.app-header .header-actions .btn,
.app-header .header-actions button.btn {
  box-sizing: border-box;
}

.user-name { color: var(--el-text-color-regular); font-size: 13px; }

/* Main content */
.app-main {
  flex: 1;
  padding: 24px 28px 32px;
  background: transparent;
  min-height: calc(100vh - 60px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--app-font);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border: 1px solid var(--el-border-color);
  border-radius: var(--app-radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  background: #fff;
  color: var(--el-text-color-primary);
  line-height: 1;
  white-space: nowrap;
  outline: none;
}

.btn:hover { border-color: var(--el-color-primary); color: var(--el-color-primary); }

.btn-primary {
  background: var(--el-color-primary);
  border-color: var(--el-color-primary);
  color: #fff;
}

.btn-primary:hover { background: var(--el-color-primary-hover); border-color: var(--el-color-primary-hover); color: #fff; }

.btn-success { background: var(--el-color-success); border-color: var(--el-color-success); color: #fff; }
.btn-success:hover { opacity: 0.9; color: #fff; }

.btn-warning { background: var(--el-color-warning); border-color: var(--el-color-warning); color: #fff; }
.btn-warning:hover { opacity: 0.9; color: #fff; }

.btn-danger { background: var(--el-color-danger); border-color: var(--el-color-danger); color: #fff; }
.btn-danger:hover { opacity: 0.9; color: #fff; }

.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }
.btn-link { border: none; background: none; color: var(--el-color-primary); padding: 4px 8px; }
.btn-link:hover { background: var(--el-color-primary-light); text-decoration: none; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-round { border-radius: 20px; }

/* Cards */
.card {
  background: #fff;
  border-radius: var(--app-radius);
  border: 1px solid var(--el-border-color-lighter);
  box-shadow: var(--app-card-shadow);
  overflow: hidden;
}

.card-header {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  border-bottom: 1px solid var(--el-border-color-lighter);
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.card-body { padding: 20px; }

/* Tables */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

table th, table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--el-border-color-lighter);
}

table thead {
  background: #f8fafc;
}

table th { font-weight: 600; color: var(--el-text-color-regular); font-size: 13px; }

table tbody tr { transition: background 0.15s ease; }
table tbody tr:hover,
table tbody tr:hover > td,
table tbody tr:hover > th {
  background: var(--el-color-primary-light);
}
table tbody tr:last-child td { border-bottom: none; }

table .muted { color: var(--el-text-color-disabled); }

/* Tags */
.tag {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 12px;
  border-radius: 20px;
  line-height: 1.6;
  letter-spacing: 0.02em;
}

.tag-success { background: #dcfce7; color: #16a34a; }
.tag-danger { background: #fee2e2; color: #dc2626; }
.tag-warning { background: #fef3c7; color: #d97706; }
.tag-info { background: #f1f5f9; color: #64748b; }

/* Forms */
.form-group { margin-bottom: 18px; }

.form-label {
  display: block;
  font-weight: 600;
  color: var(--el-text-color-regular);
  margin-bottom: 6px;
  font-size: 13px;
}

.form-label .required { color: var(--el-color-danger); margin-left: 2px; }

.form-input, .form-select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--el-border-color);
  border-radius: var(--app-radius-sm);
  font-size: 14px;
  font-family: var(--app-font);
  color: var(--el-text-color-primary);
  background: #fff;
  transition: border-color 0.2s;
  outline: none;
}

.form-input:focus, .form-select:focus { border-color: var(--el-color-primary); box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15); }
.form-input::placeholder { color: var(--el-text-color-disabled); }

/* Native <select> ignores large vertical padding; text sits too low and gets clipped. */
select.form-select:not([multiple]):not([size]) {
  height: 40px;
  min-height: 40px;
  padding: 0 32px 0 12px;
  line-height: normal;
  box-sizing: border-box;
  vertical-align: middle;
}

.form-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--el-border-color);
  border-radius: var(--app-radius-sm);
  font-size: 13px;
  font-family: var(--app-mono);
  color: var(--el-text-color-primary);
  background: #fff;
  transition: border-color 0.2s;
  outline: none;
  resize: vertical;
  line-height: 1.6;
}

.form-textarea:focus { border-color: var(--el-color-primary); box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15); }

.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }

/* Inline form */
.form-inline { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; }
.form-inline .form-group { margin-bottom: 0; }

/* Dialog/Modal */
.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.overlay.open { display: flex; }

.dialog {
  background: #fff;
  border-radius: var(--app-radius);
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.18);
  width: 90%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--el-border-color-lighter);
  font-weight: 600;
  font-size: 16px;
}

.dialog-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: 6px;
  font-size: 18px;
  color: var(--el-text-color-secondary);
  transition: all 0.2s;
}

.dialog-close:hover { background: var(--el-fill-color); color: var(--el-text-color-primary); }

.dialog-body { padding: 24px; overflow-y: auto; }
.dialog-footer { padding: 14px 24px; border-top: 1px solid var(--el-border-color-lighter); display: flex; justify-content: flex-end; gap: 10px; }

/* Description list */
.desc-list { width: 100%; }
.desc-row { display: flex; border-bottom: 1px solid var(--el-border-color-lighter); }
.desc-row:last-child { border-bottom: none; }
.desc-label { width: 140px; padding: 12px 16px; background: #f8fafc; font-weight: 600; color: var(--el-text-color-regular); flex-shrink: 0; font-size: 13px; }
.desc-value { flex: 1; padding: 12px 16px; color: var(--el-text-color-primary); }

/* Tabs */
.tabs { margin-top: 0; }

.tab-nav {
  display: flex;
  border-bottom: 1px solid var(--el-border-color-lighter);
  margin-bottom: 16px;
  gap: 0;
}

.tab-item {
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--el-text-color-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
  margin-bottom: -1px;
  white-space: nowrap;
}

.tab-item:hover { color: var(--el-color-primary); }
.tab-item.active { color: var(--el-color-primary); border-bottom-color: var(--el-color-primary); }
.tab-item.hidden { display: none; }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Space / Gap helpers */
.space-wrap { display: flex; gap: 8px; flex-wrap: wrap; }
.space-v { display: flex; flex-direction: column; gap: 12px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }

/* JSON preview */
.json-preview {
  margin-top: 12px;
  background: #1e293b;
  color: #e2e8f0;
  padding: 14px 16px;
  border-radius: var(--app-radius-sm);
  max-height: 400px;
  overflow: auto;
  font-size: 12px;
  font-family: var(--app-mono);
  border: 1px solid rgba(255, 255, 255, 0.06);
  line-height: 1.7;
  white-space: pre-wrap;
}

/* Page header back */
.page-back {
  background: #fff;
  border-radius: var(--app-radius);
  border: 1px solid var(--el-border-color-lighter);
  box-shadow: var(--app-card-shadow);
  padding: 12px 16px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-back a { font-weight: 600; font-size: 16px; text-decoration: none; color: var(--el-text-color-primary); display: flex; align-items: center; gap: 6px; }
.page-back a:hover { color: var(--el-color-primary); }

/* Alerts */
.alert {
  padding: 12px 16px;
  border-radius: var(--app-radius-sm);
  font-size: 13px;
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.alert-success { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; }
.alert-danger { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }
.alert-warning { background: #fffbeb; border: 1px solid #fde68a; color: #92400e; }
.alert-info { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e40af; }

.alert-icon { flex-shrink: 0; font-size: 16px; line-height: 1.5; }

/* Progress bar */
.progress {
  height: 10px;
  background: var(--el-border-color-lighter);
  border-radius: 5px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--el-color-primary);
  border-radius: 5px;
  transition: width 0.5s ease;
}

/* Loading */
.loading-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 0;
}

.loading-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--el-border-color);
  border-top-color: var(--el-color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Toast notification */
.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2000;
  padding: 14px 20px;
  border-radius: var(--app-radius-sm);
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.15);
  animation: slideIn 0.3s ease;
  max-width: 400px;
}

.toast-success { background: #16a34a; color: #fff; }
.toast-error { background: #dc2626; color: #fff; }
.toast-warning { background: #d97706; color: #fff; }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Intro text */
.intro { margin: 0 0 20px; font-size: 14px; color: var(--el-text-color-secondary); font-weight: 500; }

/* Dashboard alert banners */
.dash-alert-banner {
  margin: 0 0 16px;
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid #f56c6c;
  background: #fef0f0;
  color: #c45656;
  font-size: 14px;
  font-weight: 500;
}
.dash-alert-banner .dash-alert-link {
  color: #c45656;
  font-weight: 700;
  text-decoration: underline;
}
.dash-healthy-banner {
  margin: 0 0 16px;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid #b3e19d;
  background: #f0f9eb;
  color: #529b2e;
  font-size: 14px;
  font-weight: 500;
}

/* Stat grid */
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.stat-card {
  padding: 24px;
  border-radius: 14px;
  border: 1px solid var(--el-border-color-lighter);
  background: #fff;
  box-shadow: var(--app-card-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover { transform: translateY(-2px); }

.stat-inner { display: flex; align-items: flex-start; gap: 16px; }

.stat-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon-wrap svg { width: 26px; height: 26px; }

.stat-icon-wrap.tone-blue { background: linear-gradient(135deg, #dbeafe, #eff6ff); color: #2563eb; }
.stat-icon-wrap.tone-emerald { background: linear-gradient(135deg, #d1fae5, #ecfdf5); color: #059669; }
.stat-icon-wrap.tone-amber { background: linear-gradient(135deg, #fef3c7, #fffbeb); color: #d97706; }
.stat-icon-wrap.tone-violet { background: linear-gradient(135deg, #ede9fe, #f5f3ff); color: #7c3aed; }
.stat-icon-wrap.tone-slate { background: linear-gradient(135deg, #e5e7eb, #f9fafb); color: #4b5563; }
.stat-icon-wrap.tone-rose { background: linear-gradient(135deg, #ffe4e6, #fff1f2); color: #e11d48; }

.stat-label { color: var(--el-text-color-secondary); font-size: 13px; font-weight: 500; }
.stat-value {
  font-size: 30px;
  font-weight: 700;
  margin-top: 6px;
  color: #0f172a;
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.stat-value-link {
  display: inline-block;
  text-decoration: none;
  color: inherit;
  transition: color 0.15s ease;
}

.stat-value-link:hover {
  color: var(--el-color-primary);
  text-decoration: underline;
}

/* Page toolbar */
.page-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.page-toolbar .form-input,
.page-toolbar .form-select {
  width: auto;
  flex: 0 0 auto;
}

.page-heading {
  font-size: 15px;
  font-weight: 600;
  color: var(--el-text-color-primary);
}

/* Skeleton loading */
.skeleton { padding: 20px; }
.skeleton-row { height: 14px; border-radius: 4px; background: linear-gradient(90deg, #eee 25%, #f5f5f5 50%, #eee 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; margin-bottom: 12px; }
.skeleton-row:last-child { width: 60%; }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }

/* Skeleton grid */
.skeleton-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.skeleton-card { padding: 20px; border-radius: 14px; border: 1px solid var(--el-border-color-lighter); background: #fff; }

/* Hb waiting */
.hb-status { display: flex; flex-direction: column; gap: 12px; margin-top: 8px; }
.hb-waiting { display: flex; flex-direction: column; gap: 6px; padding: 10px 12px; background: var(--el-fill-color-light); border-radius: 6px; }
.hb-line { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--el-text-color-primary); }
.hb-tip { font-size: 12px; color: var(--el-text-color-secondary); }

/* Detail shell */
.detail-shell { max-width: 1200px; }
.tab-card { background: #fff; padding: 8px 16px 20px; border-radius: var(--app-radius); border: 1px solid var(--el-border-color-lighter); box-shadow: var(--app-card-shadow); }

/* Pagination */
.pagination { display: flex; justify-content: center; gap: 6px; margin-top: 20px; }
.pagination .btn:disabled { opacity: 0.3; }

/* Confirm dialog extra */
.confirm-text { font-size: 15px; margin-bottom: 12px; }

/* Responsive */
@media (max-width: 1024px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .skeleton-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .brand-text, .menu-item span { display: none; }
  .menu-item { justify-content: center; padding: 0 8px; }
  .stat-grid { grid-template-columns: 1fr; }
  .skeleton-grid { grid-template-columns: 1fr; }
  .form-row { flex-direction: column; gap: 0; }
  .app-main { padding: 16px; }
}

/* SVG icon utility */
.icon-svg { width: 1em; height: 1em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; display: inline-block; vertical-align: middle; }