/* ===== 恒温恒湿洁净室工程预算系统 v5.1 样式（打印纵向可选版） ===== */
:root {
  --primary: #1a56db;
  --primary-dark: #1e429f;
  --secondary: #f59e0b;
  --danger: #dc2626;
  --success: #059669;
  --bg: #f3f4f6;
  --card: #ffffff;
  --text: #111827;
  --text-secondary: #6b7280;
  --border: #e5e7eb;
  --shadow: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 25px rgba(26,86,219,0.2);
  --radius: 12px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.6;
}
.container { max-width: 1400px; margin: 0 auto; padding: 20px; }

/* ===== Header ===== */
header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white; padding: 24px 20px; border-radius: var(--radius);
  margin-bottom: 24px; box-shadow: var(--shadow-lg);
  text-align: center;
}
.header-label {
  font-size: 12px;
  font-weight: 500;
  opacity: 0.7;
  margin-bottom: 4px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
header h1 { font-size: 28px; margin-bottom: 6px; }
header h1 input {
  font-size: 28px; font-weight: 700; border: none; background: transparent;
  color: white; width: 100%; outline: none; padding: 0; margin: 0;
  text-align: center;
}
header h1 input::placeholder {
  color: rgba(255,255,255,0.5);
  font-size: 20px;
  font-weight: 400;
}
header p { opacity: 0.85; font-size: 14px; margin-top: 4px; }

/* ===== User Bar ===== */
.user-bar {
  display: flex; justify-content: flex-end; align-items: center; gap: 12px;
  margin-bottom: 16px; padding: 8px 16px; background: var(--card);
  border-radius: 8px; box-shadow: var(--shadow); font-size: 13px;
}
.user-bar .username { font-weight: 600; color: var(--primary); }
.user-bar .btn-sm { padding: 4px 12px; font-size: 12px; }

/* ===== Tabs ===== */
.tabs {
  display: flex; gap: 8px; margin-bottom: 24px; background: var(--card);
  padding: 8px; border-radius: 10px; box-shadow: var(--shadow);
  position: sticky; top: 10px; z-index: 100; flex-wrap: wrap;
}
.tab {
  padding: 12px 24px; border: none; background: transparent;
  color: var(--text-secondary); font-size: 15px; font-weight: 600;
  cursor: pointer; border-radius: 8px; transition: all 0.2s;
}
.tab:hover { background: var(--bg); color: var(--text); }
.tab.active { background: var(--primary); color: white; }

/* ===== Panels ===== */
.panel { display: none; }
.panel.active { display: block; animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ===== Cards ===== */
.card {
  background: var(--card); border-radius: var(--radius); padding: 24px;
  margin-bottom: 20px; box-shadow: var(--shadow); border: 1px solid var(--border);
}
.card-title {
  font-size: 18px; font-weight: 700; margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}

/* ===== Badges ===== */
.badge {
  display: inline-flex; align-items: center; padding: 4px 12px;
  border-radius: 20px; font-size: 12px; font-weight: 600;
  background: var(--bg); color: var(--text-secondary);
}
.badge.blue { background: #dbeafe; color: var(--primary); }
.badge.green { background: #d1fae5; color: var(--success); }
.badge.red { background: #fee2e2; color: var(--danger); }
.badge.yellow { background: #fef3c7; color: #92400e; }

/* ===== Toolbar ===== */
.toolbar { display: flex; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; align-items: center; }

/* ===== Form Elements ===== */
input, select, button, textarea { font-family: inherit; font-size: 14px; }
input[type="text"], input[type="number"], input[type="date"], input[type="password"],
select, textarea {
  padding: 10px 14px; border: 1px solid var(--border); border-radius: 8px;
  outline: none; transition: border 0.2s; min-width: 120px; background: white;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); }
textarea { resize: vertical; line-height: 1.8; width: 100%; }

/* ===== Buttons ===== */
.btn {
  padding: 10px 18px; border: none; border-radius: 8px; cursor: pointer;
  font-weight: 600; display: inline-flex; align-items: center; gap: 6px;
  transition: all 0.2s; text-decoration: none; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(26,86,219,0.25); }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #047857; }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #b91c1c; }
.btn-secondary { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none !important; }
.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px dashed var(--border); }
.btn-ghost:hover { background: var(--bg); color: var(--text); }

/* ===== Tables ===== */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 8px; text-align: left; border-bottom: 1px solid var(--border); line-height: 1.5; }
th { background: #f9fafb; font-weight: 600; color: var(--text-secondary); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; position: sticky; top: 0; }
tr:hover { background: #f9fafb; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.font-mono { font-family: "SF Mono", Monaco, "Cascadia Code", monospace; }

/* ===== Summary Box ===== */
.summary-box {
  background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
  color: white; padding: 24px; border-radius: var(--radius);
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px; margin-bottom: 24px;
}
.summary-item h3 { font-size: 13px; opacity: 0.8; margin-bottom: 6px; font-weight: 500; }
.summary-item .value { font-size: 24px; font-weight: 700; font-family: monospace; }
.summary-item .value.small { font-size: 18px; }

/* ===== Form Grid ===== */
.form-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px; margin-bottom: 16px;
}
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }

/* ===== Project Info ===== */
.project-info {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px; margin-bottom: 24px;
}

/* ===== Category Section ===== */
.lib-category-section { margin-bottom: 24px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.lib-category-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; background: #f8fafc; border-bottom: 1px solid var(--border);
}
.lib-category-header h3 { font-size: 16px; color: var(--primary-dark); display:flex; align-items:center; gap:8px; margin:0; }
.lib-category-body { padding: 0; }
.lib-category-body.collapsed { display: none; }
.category-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px; padding-bottom: 8px; border-bottom: 2px solid var(--primary);
}
.category-header h2 { font-size: 20px; color: var(--primary-dark); display:flex; align-items:center; gap:8px; }
.collapse-toggle {
  cursor: pointer;
  user-select: none;
  font-size: 14px;
  color: var(--primary);
  width: 20px;
  text-align: center;
  display: inline-block;
  transition: transform 0.2s;
}
.collapse-toggle.collapsed { transform: rotate(-90deg); }
.budget-card-body.collapsed { display: none; }
.category-total { font-size: 18px; font-weight: 700; color: var(--primary); font-family: monospace; }

/* ===== Empty State ===== */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-secondary); }

/* ===== Print Only ===== */
.print-only { display: none; }

/* ===== Toast ===== */
.toast {
  position: fixed; bottom: 24px; right: 24px; background: var(--text);
  color: white; padding: 12px 20px; border-radius: 8px; font-size: 14px;
  z-index: 1000; transform: translateY(100px); opacity: 0; transition: all 0.3s;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

/* ===== Spinner ===== */
.loading {
  display: inline-block; width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.3); border-radius: 50%;
  border-top-color: white; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.spinner-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.7); z-index: 3000;
  display: none; align-items: center; justify-content: center;
}
.spinner-overlay.active { display: flex; }
.spinner-box {
  background: white; padding: 24px 32px; border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.15); display: flex;
  align-items: center; gap: 12px; font-weight: 600; color: var(--text-secondary);
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5); z-index: 2000;
  display: none; align-items: center; justify-content: center; padding: 20px;
}
.modal-overlay.active { display: flex; }
.modal-box {
  background: var(--card); border-radius: 16px; width: 100%; max-width: 800px;
  max-height: 85vh; overflow: hidden; display: flex; flex-direction: column;
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
}
.modal-box.wide { max-width: 900px; }
.modal-box.narrow { max-width: 420px; }
.modal-header {
  padding: 20px 24px; border-bottom: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
}
.modal-header h3 { font-size: 18px; color: var(--text); }
.modal-close {
  background: none; border: none; font-size: 24px; color: var(--text-secondary);
  cursor: pointer; width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: var(--bg); color: var(--danger); }
.modal-body { padding: 20px 24px; overflow-y: auto; flex: 1; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 12px; }

/* ===== Autocomplete ===== */
.autocomplete-list {
  position: absolute; background: white; border: 1px solid var(--border);
  border-radius: 8px; max-height: 240px; overflow-y: auto; width: 100%;
  z-index: 50; box-shadow: 0 10px 25px rgba(0,0,0,0.1); display: none;
}
.autocomplete-list.active { display: block; }
.autocomplete-item {
  padding: 10px 14px; cursor: pointer; font-size: 13px;
  border-bottom: 1px solid var(--border);
}
.autocomplete-item:hover { background: var(--bg); }
.autocomplete-item .match-name { font-weight: 600; color: var(--primary); }
.autocomplete-item .match-detail { color: var(--text-secondary); font-size: 12px; margin-top: 2px; }

/* ===== Spec Dropdown ===== */
#specDropdown {
  display: none; position: absolute; background: white;
  border: 1px solid var(--border); border-radius: 8px;
  max-height: 300px; overflow-y: auto; z-index: 100;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1); min-width: 300px;
}
.spec-option {
  padding: 12px 16px; cursor: pointer; border-bottom: 1px solid var(--border);
  transition: all 0.2s; display: flex; justify-content: space-between; align-items: center;
}
.spec-option:hover { background: #f0f7ff; }

/* ===== Inputs in Table ===== */
.qty-input, .price-input, .labor-input {
  width: 80px; padding: 6px 8px; text-align: center;
  border: 1px solid var(--border); border-radius: 6px; font-size: 13px;
}
.qty-input:focus, .price-input:focus, .labor-input:focus { border-color: var(--primary); }
.qty-input.changed, .price-input.changed, .labor-input.changed {
  border-color: var(--secondary); background: #fffbeb;
}

/* ===== Item Link ===== */
.item-link { color: var(--primary); text-decoration: none; font-weight: 600; cursor: pointer; border-bottom: 1px dashed var(--primary); transition: all 0.2s; }
.item-link:hover { color: var(--primary-dark); border-bottom-style: solid; }

/* ===== Edit Row ===== */
.edit-row { background: #fef3c7 !important; }
.edit-input {
  width: 100%; padding: 6px 8px; border: 1px solid var(--primary);
  border-radius: 6px; font-size: 13px; background: white;
}
.edit-input:focus { outline: none; box-shadow: 0 0 0 3px rgba(26,86,219,0.15); }

/* ===== Category Tags ===== */
.category-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 12px; }
.category-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 20px; background: #dbeafe;
  color: var(--primary); font-size: 13px; font-weight: 600; margin: 4px;
}
.category-tag .remove { cursor: pointer; font-size: 16px; line-height: 1; }
.category-tag .remove:hover { color: var(--danger); }

/* ===== Add Category Box ===== */
.add-category-box {
  background: var(--bg); border-radius: 8px; padding: 16px;
  margin-bottom: 16px; display: flex; gap: 12px; align-items: flex-end;
}
.add-category-box .form-group { flex: 1; margin-bottom: 0; }
.add-category-box input { width: 100%; }

/* ===== Saved Project Item ===== */
.saved-project-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 16px; border: 1px solid var(--border); border-radius: 8px;
  margin-bottom: 10px; cursor: pointer; transition: all 0.2s;
}
.saved-project-item:hover { border-color: var(--primary); background: #f0f7ff; }
.saved-project-item .proj-name { font-weight: 600; color: var(--text); }
.saved-project-item .proj-date { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.saved-project-item .proj-actions { display: flex; gap: 8px; }

/* ===== Fee Form ===== */
.fee-form { background: var(--bg); border-radius: 8px; padding: 20px; margin-bottom: 20px; }
.fee-form .form-grid { margin-bottom: 0; }
.fee-table input { padding: 6px 8px; font-size: 13px; }
.fee-table select { padding: 6px 8px; font-size: 13px; }
.fee-table .btn-sm { padding: 4px 10px; }

/* ===== Remarks ===== */
.remarks-box {
  background: #fafafa; border: 1px solid var(--border);
  border-radius: 8px; padding: 16px; font-size: 13px;
  line-height: 1.8; color: var(--text-secondary);
}

/* ===== Trash / Undo ===== */
.trash-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; border: 1px solid var(--border); border-radius: 8px;
  margin-bottom: 8px; background: #fff;
}
.trash-item .trash-info { flex: 1; }
.trash-item .trash-info .name { font-weight: 600; font-size: 14px; }
.trash-item .trash-info .detail { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.trash-item .trash-actions { display: flex; gap: 8px; }
.undo-bar {
  position: fixed; bottom: 80px; left: 50%; transform: translateX(-50%) translateY(100px);
  background: var(--text); color: white; padding: 10px 20px; border-radius: 8px;
  display: flex; align-items: center; gap: 12px; z-index: 999;
  transition: transform 0.3s; box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.undo-bar.show { transform: translateX(-50%) translateY(0); }

/* ===== Calc Preview ===== */
.calc-preview {
  background: #f8fafc; border: 1px solid var(--border); border-radius: 8px;
  padding: 16px; font-family: monospace; font-size: 13px; line-height: 2;
}
.calc-preview .calc-line { display: flex; justify-content: space-between; padding: 2px 0; border-bottom: 1px dashed var(--border); }
.calc-preview .calc-line.total { font-weight: 700; font-size: 15px; color: var(--primary); border-top: 2px solid var(--primary); border-bottom: none; margin-top: 8px; padding-top: 8px; }
.calc-preview .calc-arrow { color: var(--text-secondary); margin-right: 8px; }

/* ===== Price Alert ===== */
.price-alert {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 600;
  margin-left: 4px;
}
.price-alert.up { background: #fee2e2; color: var(--danger); }
.price-alert.down { background: #d1fae5; color: var(--success); }

/* ===== Drag Sort ===== */
.sortable-ghost { opacity: 0.4; background: #dbeafe; }
.sortable-drag { cursor: grabbing; }
.drag-handle {
  cursor: grab; padding: 4px; color: var(--text-secondary);
  display: inline-flex; align-items: center; justify-content: center;
}
.drag-handle:hover { color: var(--primary); }
.drag-handle:active { cursor: grabbing; }

/* ===== Auto Save Indicator ===== */
.auto-save-indicator {
  position: fixed; top: 10px; right: 10px; z-index: 500;
  display: flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 20px; font-size: 12px;
  background: var(--card); border: 1px solid var(--border);
  box-shadow: var(--shadow); opacity: 0; transition: opacity 0.3s;
}
.auto-save-indicator.show { opacity: 1; }
.auto-save-indicator .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--success); animation: pulse 1.5s infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

/* ===== Login Form ===== */
.login-form {
  max-width: 360px; margin: 0 auto; padding: 32px;
  background: var(--card); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); border: 1px solid var(--border);
}
.login-form h2 { text-align: center; margin-bottom: 24px; color: var(--primary); }
.login-form .form-group { margin-bottom: 16px; }
.login-form .form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }
.login-form input { width: 100%; }
.login-form .btn { width: 100%; justify-content: center; margin-top: 8px; }
.login-form .switch-link { text-align: center; margin-top: 16px; font-size: 13px; color: var(--text-secondary); }
.login-form .switch-link a { color: var(--primary); cursor: pointer; font-weight: 600; }

/* ===== Template Tags ===== */
.template-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.template-tag {
  padding: 8px 16px; border-radius: 20px; background: #f3f4f6;
  border: 1px solid var(--border); font-size: 13px; cursor: pointer;
  transition: all 0.2s; display: flex; align-items: center; gap: 8px;
}
.template-tag:hover { border-color: var(--primary); background: #dbeafe; }
.template-tag.active { background: var(--primary); color: white; border-color: var(--primary); }
.template-tag .remove { font-size: 14px; opacity: 0.6; }
.template-tag .remove:hover { opacity: 1; color: var(--danger); }

/* ===== 小类（二级分类）样式 ===== */
.category-tree-item {
  margin-bottom: 16px;
  padding: 12px 16px;
  background: var(--card);
  border-radius: 8px;
  border: 1px solid var(--border);
}
.category-tree-main {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.category-tag-large {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 20px;
  background: #dbeafe;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
}
.category-tag-large .remove {
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
}
.category-tag-large .remove:hover {
  color: var(--danger);
}
.category-tree-subs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-left: 24px;
}
.subcategory-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 16px;
  background: #f3f4f6;
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text);
}
.subcategory-tag .remove {
  cursor: pointer;
  font-size: 14px;
  color: var(--text-secondary);
}
.subcategory-tag .remove:hover {
  color: var(--danger);
}
.sub-header-row td {
  background: #f0f7ff !important;
  font-weight: 600;
  color: var(--primary);
  font-size: 12px;
}
#subcategorySelect:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ======================= 打印样式（纵向可选，合计右对齐） ======================= */
@media print {
  /* 基础设置 */
  body {
    background: white;
    font-size: 10pt;
    line-height: 1.3;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  /* 隐藏非打印元素 */
  .no-print,
  .tab,
  .toolbar,
  .user-bar,
  .auto-save-indicator,
  .undo-bar,
  .btn,
  .modal-overlay,
  #specDropdown,
  .drag-handle,
  .item-checkbox,
  .select-all-checkbox,
  .category-header button,
  .card .toolbar,
  .add-category-box,
  .fee-form,
  .template-tags {
    display: none !important;
  }

  /* 显示打印专用内容 */
  .print-only {
    display: block !important;
  }
  td.print-only, th.print-only, .print-only.text-center {
    display: table-cell !important;
  }

  /* 卡片样式重置 */
  .card {
    border: 1px solid #ccc !important;
    padding: 8px !important;
    margin: 0 !important;
    box-shadow: none !important;
  }
  /* 汇总表保持在一页 */
  #printReport.card {
    page-break-inside: avoid;
  }

  /* 页面边距（不强制方向，用户可在打印对话框自行选择纵向/横向） */
  @page {
    margin: 1.2cm;
  }

  /* 标题与头部 */
  header {
    background: white !important;
    color: black !important;
    border-bottom: 2px solid #1a56db;
    margin-bottom: 12px;
    padding: 10px;
    text-align: center;
  }
  header .header-label {
    display: none !important;
  }
  header h1 input {
    color: black !important;
    font-size: 18pt !important;
    text-align: center;
    border: none;
    background: transparent;
  }
  header h1 input::placeholder {
    color: #999;
    font-size: 14pt;
  }
  header p {
    text-align: center;
    font-size: 10pt;
  }

  /* 工程报价汇总表（第一页） */
  #printReport {
    page-break-after: always;
    margin-bottom: 20px;
  }
  .summary-table,
  .info-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 12px;
  }
  .summary-table td,
  .summary-table th,
  .info-table td {
    border: 1px solid #999;
    padding: 6px 8px;
    vertical-align: top;
  }
  .summary-table th {
    background: #f0f0f0;
    font-weight: bold;
    text-align: center;
  }

  /* 预算清单表格 - 核心优化 */
  .category-header {
    page-break-after: avoid;
    break-after: avoid;
  }
  /* 表格自动换行，防止溢出 */
  .category-section table {
    width: 100%;
    border-collapse: collapse;
    table-layout: auto;
    font-size: 9pt;
  }
  /* 表头每页重复 */
  .category-section thead {
    display: table-header-group;
  }
  /* 数据行允许自然分页（不留白），但单元格内容不跨页 */
  .category-section tbody td {
    page-break-inside: avoid;
    break-inside: avoid;
  }
  /* 合计行不跨页 */
  .category-section tfoot tr {
    page-break-inside: avoid;
    break-inside: avoid;
  }
  .category-section table th,
  .category-section table td {
    border: 1px solid #666;
    padding: 3px 5px;
    vertical-align: top;
    word-wrap: break-word;
    word-break: break-word;
    line-height: 1.35;
  }
  /* 数字列统一右对齐（包括合计列） */
  .category-section table td:nth-child(9),  /* 数量 */
  .category-section table td:nth-child(10),  /* 材料单价 */
  .category-section table td:nth-child(11),  /* 人工单价 */
  .category-section table td:nth-child(12) { /* 合计 */
    text-align: right !important;
  }
  /* 表头合计列也右对齐 */
  .category-section table th:nth-child(12) {
    text-align: right !important;
  }
  /* 序号列居中 */
  .category-section table td:nth-child(4) {
    text-align: center;
  }
  /* 单位列居中 */
  .category-section table td:nth-child(8) {
    text-align: center;
  }

  /* 小类标题行 */
  .sub-header-row td {
    background: #e6f2ff !important;
    font-weight: bold;
    padding: 4px 8px;
  }
  /* 大类合计行 */
  .category-section tfoot tr td {
    background: #f5f5f5 !important;
    font-weight: bold;
    padding: 4px 5px;
    border: 1px solid #666;
  }

  /* 强制文本对齐辅助类 */
  .text-right {
    text-align: right !important;
  }
  .text-center {
    text-align: center !important;
  }
  .font-mono {
    font-family: "Courier New", monospace;
  }

  /* 备注框 */
  .remarks-box {
    border: 1px solid #999;
    padding: 8px;
    margin-top: 12px;
    background: #fafafa;
  }
}

/* ===== 成本统计页样式 ===== */
.stats-overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 8px;
}
.stats-card {
  background: white;
  border-radius: 12px;
  padding: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}
.stats-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.stats-card.blue { border-top: 4px solid var(--primary); }
.stats-card.green { border-top: 4px solid var(--success); }
.stats-card.purple { border-top: 4px solid #8b5cf6; }
.stats-card.orange { border-top: 4px solid var(--secondary); }
.stats-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
}
.stats-value {
  font-size: 22px;
  font-weight: 700;
  font-family: monospace;
  color: var(--text);
}
.stats-bar-chart {
  padding: 8px 0;
}
.stats-bar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.stats-bar-label {
  width: 60px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: right;
  flex-shrink: 0;
}
.stats-bar-wrap {
  flex: 1;
  height: 24px;
  background: var(--bg);
  border-radius: 12px;
  overflow: hidden;
}
.stats-bar-fill {
  height: 100%;
  border-radius: 12px;
  transition: width 0.6s ease;
}
.stats-bar-fill.blue { background: linear-gradient(90deg, #1a56db, #3b82f6); }
.stats-bar-fill.green { background: linear-gradient(90deg, #059669, #10b981); }
.stats-bar-value {
  width: 180px;
  font-size: 13px;
  color: var(--text);
  font-family: monospace;
  text-align: right;
  flex-shrink: 0;
}

.budget-name-input {
  border: 1px solid transparent;
  background: transparent;
  padding: 4px 6px;
  border-radius: 4px;
  transition: border-color 0.2s, background 0.2s;
}
.budget-name-input:hover {
  border-color: var(--border);
  background: white;
}
.budget-name-input:focus {
  border-color: var(--primary);
  background: white;
  outline: none;
}

/* 成本统计页红色卡片 */
.stats-card.red { border-top: 4px solid var(--danger); }

/* 材料库成本价列样式 */
#libraryTable td:nth-child(11),
#libraryTable td:nth-child(12) {
  color: var(--danger);
}

/* 成本统计视角切换 */
#statsViewBudget, #statsViewCost {
  animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 预算清单项目名称输入框 */
.budget-name-input {
  border: 1px solid transparent;
  background: transparent;
  padding: 4px 6px;
  border-radius: 4px;
  transition: border-color 0.2s, background 0.2s;
}
.budget-name-input:hover {
  border-color: var(--border);
  background: white;
}
.budget-name-input:focus {
  border-color: var(--primary);
  background: white;
  outline: none;
}

/* 用户管理表格 */
#adminUserList table td {
  vertical-align: middle;
}
#adminUserList .btn-sm {
  margin: 2px;
}

/* ===== 打印样式补充 ===== */
@media print {
  .stats-overview {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .stats-card {
    border: 1px solid #ccc;
    box-shadow: none;
    padding: 12px;
  }
  .stats-bar-fill {
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
  }
}
@media (max-width: 768px) {
  .tabs { flex-wrap: wrap; }
  .tab { padding: 10px 16px; font-size: 14px; flex: 1; min-width: 80px; text-align: center; }
  .form-grid { grid-template-columns: 1fr; }
  .project-info { grid-template-columns: 1fr; }
  .summary-box { grid-template-columns: 1fr 1fr; }
  .category-header { flex-direction: column; align-items: flex-start; gap: 8px; }
  table { font-size: 12px; }
  th, td { padding: 8px; }
  .qty-input, .price-input, .labor-input { width: 60px; padding: 4px 6px; }
  .user-bar { flex-wrap: wrap; justify-content: center; }
}

/* ===== v6.0 侧边导航 + 顶部栏 + 看板样式 ===== */

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

/* 侧边导航 */
.sidebar {
  width: 220px;
  background: linear-gradient(180deg, #1e3a8a 0%, #1e40af 100%);
  color: white;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 200;
  transition: transform 0.3s;
}
.sidebar-header {
  padding: 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.sidebar-header h2 {
  font-size: 16px;
  font-weight: 700;
  margin: 0;
  line-height: 1.4;
}
.sidebar-header p {
  font-size: 11px;
  opacity: 0.7;
  margin: 4px 0 0;
}
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
}
.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 4px; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  margin: 2px 8px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  border: none;
  background: none;
  width: calc(100% - 16px);
  text-align: left;
}
.nav-item:hover {
  background: rgba(255,255,255,0.1);
  color: white;
}
.nav-item.active {
  background: rgba(255,255,255,0.2);
  color: white;
  font-weight: 600;
}
.nav-item .nav-icon {
  font-size: 18px;
  width: 24px;
  text-align: center;
}

/* 侧边栏工具按钮 */
.nav-tools {
  padding: 4px 0;
}
.nav-tool {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  margin: 1px 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s;
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  border: none;
  background: none;
  width: calc(100% - 16px);
  text-align: left;
}
.nav-tool:hover {
  background: rgba(255,255,255,0.12);
  color: white;
}
.nav-tool .nav-icon {
  font-size: 16px;
  width: 24px;
  text-align: center;
  opacity: 0.9;
}

.nav-divider {
  height: 1px;
  background: rgba(255,255,255,0.1);
  margin: 8px 16px;
}
.nav-label {
  padding: 8px 16px 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: rgba(255,255,255,0.5);
}
.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 11px;
  opacity: 0.6;
  text-align: center;
}

/* 主内容区 */
.main-content {
  flex: 1;
  margin-left: 220px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* 顶部栏 */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  gap: 16px;
}
.top-bar-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
}
.top-bar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.top-search {
  position: relative;
  max-width: 320px;
  flex: 1;
}
.top-search input {
  width: 100%;
  padding: 8px 12px 8px 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  background: var(--bg);
}
.top-search input:focus {
  border-color: var(--primary);
  background: white;
}
.top-search::before {
  content: "🔍";
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  opacity: 0.5;
}
.top-project {
  display: flex;
  align-items: center;
  gap: 8px;
}
.top-project select {
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  font-size: 13px;
  min-width: 140px;
  max-width: 200px;
}
.top-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.top-actions .btn {
  padding: 5px 10px;
  font-size: 12px;
  white-space: nowrap;
}
.top-actions .btn-sm {
  padding: 4px 8px;
  font-size: 11px;
}
.top-user {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}
.top-user .username {
  font-weight: 600;
  color: var(--primary);
}

/* 内容区域 */
.content-area {
  flex: 1;
  padding: 20px 24px;
  background: var(--bg);
  min-height: calc(100vh - 60px);
}

/* 看板卡片 */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}
.dashboard-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}
.dashboard-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.dashboard-card.blue { border-top: 4px solid var(--primary); }
.dashboard-card.green { border-top: 4px solid var(--success); }
.dashboard-card.orange { border-top: 4px solid var(--secondary); }
.dashboard-card.red { border-top: 4px solid var(--danger); }
.dashboard-card.purple { border-top: 4px solid #8b5cf6; }
.dashboard-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
}
.dashboard-value {
  font-size: 28px;
  font-weight: 700;
  font-family: monospace;
  color: var(--text);
}
.dashboard-value.small {
  font-size: 20px;
}
.dashboard-delta {
  font-size: 13px;
  margin-top: 8px;
  font-weight: 600;
}
.dashboard-delta.up { color: var(--danger); }
.dashboard-delta.down { color: var(--success); }

/* 看板区域 */
.dashboard-section {
  margin-bottom: 24px;
}
.dashboard-section-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 快捷入口 */
.quick-actions {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.quick-action-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  transition: all 0.2s;
  text-decoration: none;
}
.quick-action-btn:hover {
  border-color: var(--primary);
  background: #f0f7ff;
  color: var(--primary);
}
.quick-action-btn .icon {
  font-size: 20px;
}

/* 待办列表 */
.todo-list {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 16px;
}
.todo-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.todo-item:last-child { border-bottom: none; }
.todo-item .todo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.todo-item .todo-dot.red { background: var(--danger); }
.todo-item .todo-dot.orange { background: var(--secondary); }
.todo-item .todo-dot.blue { background: var(--primary); }
.todo-item .todo-text {
  flex: 1;
  font-size: 13px;
}
.todo-item .todo-action {
  font-size: 12px;
  color: var(--primary);
  cursor: pointer;
  font-weight: 600;
}

/* 两栏布局 */
.two-col {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
}
@media (max-width: 1024px) {
  .two-col { grid-template-columns: 1fr; }
}

/* 移动端侧边栏 */
.sidebar-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text);
}
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .sidebar-toggle { display: block; }
  .top-bar { padding: 10px 12px; gap: 8px; flex-wrap: wrap; }
  .top-bar-left { flex-wrap: wrap; gap: 8px; }
  .top-search { max-width: 100%; order: 3; width: 100%; }
  .top-project { order: 2; }
  .top-actions { order: 4; width: 100%; gap: 4px; }
  .top-actions .btn { padding: 4px 8px; font-size: 11px; }
  .content-area { padding: 12px; }
  .dashboard-grid { grid-template-columns: 1fr 1fr; }
}

/* 打印时隐藏侧边栏和顶部栏 */
@media print {
  .sidebar, .top-bar, .sidebar-toggle {
    display: none !important;
  }
  .main-content {
    margin-left: 0 !important;
  }
}