/* ============================================================
   洁净型风机箱选型系统 V2.0 - 完整样式
   ============================================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: #F0F2F5;
  color: #1F2937;
  font-size: 14px;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.hidden { display: none !important; }

:root {
  --primary: #0066B3;
  --primary-dark: #004B86;
  --primary-light: #3D8AC9;
  --primary-bg: #E8F1F9;
  --accent: #F39C12;
  --success: #27AE60;
  --danger: #E74C3C;
  --warning: #F1C40F;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.10);
  --radius: 6px;
  --radius-lg: 10px;
}

/* ============================================================
   登录页
   ============================================================ */
.login-page {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #004B86 0%, #0066B3 50%, #3D8AC9 100%);
  overflow: hidden;
  z-index: 1000;
}
.login-bg { position: absolute; inset: 0; overflow: hidden; }
.login-shape {
  position: absolute; border-radius: 50%; opacity: 0.1;
  background: #fff;
  animation: float 20s ease-in-out infinite;
}
.login-shape.s1 { width: 400px; height: 400px; top: -100px; left: -100px; }
.login-shape.s2 { width: 300px; height: 300px; bottom: -80px; right: -50px; animation-delay: -7s; }
.login-shape.s3 { width: 200px; height: 200px; top: 40%; right: 20%; animation-delay: -14s; }
@keyframes float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(50px, -50px) rotate(120deg); }
  66% { transform: translate(-30px, 30px) rotate(240deg); }
}

.login-card {
  position: relative; z-index: 1;
  background: #fff;
  width: 420px; max-width: 90%;
  padding: 36px 40px 28px;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.login-logo {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; font-size: 28px; font-weight: 800;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 18px;
  box-shadow: 0 6px 16px rgba(0,102,179,0.3);
}
.login-title {
  text-align: center; font-size: 18px; font-weight: 700;
  color: var(--primary-dark); margin-bottom: 4px;
}
.login-subtitle {
  text-align: center; font-size: 10px; color: var(--gray-400);
  letter-spacing: 1.5px; margin-bottom: 24px;
}
.login-form .form-row { margin-bottom: 14px; }
.login-form label {
  display: block; font-size: 12px; font-weight: 600;
  color: var(--gray-700); margin-bottom: 6px;
}
.login-form input {
  width: 100%; padding: 10px 12px;
  border: 1.5px solid var(--gray-300);
  border-radius: 8px; font-size: 14px;
  transition: all 0.15s;
}
.login-form input:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,102,179,0.1);
}
.login-error {
  color: var(--danger); font-size: 12px; min-height: 18px; margin: 6px 0;
}
.btn-login {
  width: 100%; padding: 12px; margin-top: 8px;
  font-size: 15px; border-radius: 8px;
}
.login-tips {
  margin-top: 22px; padding: 12px;
  background: var(--gray-50); border-radius: 8px;
  font-size: 11px; color: var(--gray-500);
}
.tip-title { font-weight: 600; color: var(--gray-700); margin-bottom: 4px; }
.tip-row { line-height: 1.8; }
.tip-row code {
  background: #fff; padding: 1px 6px; border-radius: 3px;
  font-family: "Consolas", monospace; color: var(--primary-dark);
  border: 1px solid var(--gray-200);
}
.login-footer {
  text-align: center; font-size: 11px; color: var(--gray-400);
  margin-top: 24px; padding-top: 14px; border-top: 1px solid var(--gray-100);
}

/* ============================================================
   顶部品牌栏
   ============================================================ */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: #fff; padding: 0 32px; height: 72px;
  box-shadow: var(--shadow); flex-shrink: 0;
  border-bottom: 3px solid var(--accent);
}
.brand-left { display: flex; align-items: center; gap: 14px; min-width: 280px; }
.brand-logo {
  width: 48px; height: 48px;
  background: #fff; color: var(--primary); border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 20px; letter-spacing: -1px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}
.brand-cn { font-size: 18px; font-weight: 700; letter-spacing: 1px; }
.brand-en { font-size: 10px; opacity: 0.85; margin-top: 2px; }
.brand-center { text-align: center; flex: 1; }
.product-cn { font-size: 22px; font-weight: 700; letter-spacing: 2px; }
.product-en { font-size: 11px; opacity: 0.85; letter-spacing: 1.5px; margin-top: 4px; }
.brand-right { text-align: right; min-width: 240px; }
.version {
  font-size: 12px; background: rgba(255,255,255,0.18);
  padding: 4px 10px; border-radius: 4px; display: inline-block; margin-bottom: 4px;
}
.user-info {
  display: flex; align-items: center; gap: 8px; justify-content: flex-end;
  font-size: 13px;
}
.role-badge {
  padding: 2px 8px; border-radius: 3px; font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1px;
}
.role-badge.admin { background: #E74C3C; color: #fff; }
.role-badge.sales { background: var(--accent); color: #fff; }
.role-badge.viewer { background: var(--success); color: #fff; }
.user-name { font-weight: 600; }
.btn-mini {
  background: rgba(255,255,255,0.2); color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  padding: 3px 10px; border-radius: 4px; font-size: 12px;
  cursor: pointer; font-family: inherit;
}
.btn-mini:hover { background: rgba(255,255,255,0.3); }

/* ============================================================
   布局
   ============================================================ */
.layout { display: flex; flex: 1; min-height: 0; }
.sidebar {
  width: 220px; background: #fff;
  border-right: 1px solid var(--gray-200);
  padding: 16px 0; flex-shrink: 0; overflow-y: auto;
}
.nav-section {
  padding: 12px 20px 6px;
  font-size: 11px; font-weight: 600; color: var(--gray-400);
  letter-spacing: 1.5px;
}
.nav-section.admin-only { color: var(--danger); }
.nav-item {
  display: flex; align-items: center; padding: 10px 20px;
  color: var(--gray-700); text-decoration: none; font-size: 14px;
  cursor: pointer; border-left: 3px solid transparent;
  transition: all 0.15s; user-select: none;
}
.nav-item:hover { background: var(--gray-50); color: var(--primary); }
.nav-item.active {
  background: var(--primary-bg); color: var(--primary);
  border-left-color: var(--primary); font-weight: 600;
}
.nav-item .ico {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; background: var(--gray-100);
  border-radius: 50%; font-size: 11px; font-weight: 700;
  margin-right: 10px; color: var(--gray-500);
}
.nav-item.active .ico { background: var(--primary); color: #fff; }
.nav-badge {
  margin-left: auto; background: var(--accent); color: #fff;
  font-size: 11px; padding: 1px 7px; border-radius: 10px;
  font-weight: 600; min-width: 18px; text-align: center;
}

.content { flex: 1; padding: 24px 28px; overflow-y: auto; background: var(--gray-50); }
.panel { display: none; animation: fadeIn 0.25s ease; }
.panel.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
.panel-header { margin-bottom: 20px; padding-bottom: 16px; border-bottom: 2px solid var(--gray-200); }
.panel-header h2 { font-size: 22px; color: var(--primary-dark); margin-bottom: 6px; }
.panel-header p { color: var(--gray-500); font-size: 13px; }
.sub-title { font-size: 16px; color: var(--primary-dark); margin: 24px 0 12px; padding-left: 10px; border-left: 4px solid var(--primary); }

.card {
  background: #fff; border-radius: var(--radius-lg);
  padding: 20px; box-shadow: var(--shadow-sm); border: 1px solid var(--gray-200);
}
.card-title {
  font-size: 15px; font-weight: 600; color: var(--primary-dark);
  margin-bottom: 16px; padding-bottom: 10px;
  border-bottom: 1px dashed var(--gray-200);
  display: flex; align-items: center; gap: 8px;
}
.card-title::before {
  content: ""; display: inline-block;
  width: 4px; height: 16px; background: var(--primary); border-radius: 2px;
}

/* ============================================================
   快速选型
   ============================================================ */
.quick-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 20px; align-items: start; }
.form-row { margin-bottom: 18px; }
.form-row > label { display: block; font-size: 13px; font-weight: 600; color: var(--gray-700); margin-bottom: 6px; }
.input-group { position: relative; display: flex; align-items: center; }
.input-group input { flex: 1; padding: 9px 50px 9px 12px; border: 1.5px solid var(--gray-300); border-radius: var(--radius); font-size: 14px; }
.input-group input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,102,179,0.1); }
.input-group .unit { position: absolute; right: 12px; font-size: 12px; color: var(--gray-400); pointer-events: none; }
.hint { font-size: 11px; color: var(--gray-400); margin-top: 4px; }
.hint-inline { font-size: 11px; color: var(--gray-400); font-weight: normal; }
.input-full, .select-full {
  width: 100%; padding: 9px 12px; border: 1.5px solid var(--gray-300);
  border-radius: var(--radius); font-size: 14px; background: #fff; font-family: inherit;
}
.input-full:focus, .select-full:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,102,179,0.1); }
textarea.input-full { resize: vertical; min-height: 60px; }

.clean-grid, .config-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.clean-opt, .config-opt {
  cursor: pointer; padding: 10px 6px; border: 1.5px solid var(--gray-300);
  border-radius: var(--radius); text-align: center; background: #fff; transition: all 0.15s;
}
.clean-opt .co-name, .config-opt .cg-title { font-size: 13px; font-weight: 600; color: var(--gray-700); }
.clean-opt .co-desc, .config-opt .cg-desc { font-size: 11px; color: var(--gray-400); margin-top: 2px; }
.clean-opt:hover, .config-opt:hover { border-color: var(--primary); }
.clean-opt.active, .config-opt.active { border-color: var(--primary); background: var(--primary-bg); }
.clean-opt.active .co-name, .config-opt.active .cg-title { color: var(--primary-dark); }

.install-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.install-opt {
  cursor: pointer; padding: 9px 6px; border: 1.5px solid var(--gray-300);
  border-radius: var(--radius); text-align: center; background: #fff;
  font-size: 13px; font-weight: 600; color: var(--gray-700); transition: all 0.15s;
}
.install-opt:hover { border-color: var(--primary); }
.install-opt.active { border-color: var(--primary); background: var(--primary-bg); color: var(--primary-dark); }

.action-row { display: flex; gap: 10px; margin-top: 8px; }
.btn {
  padding: 11px 18px; border: none; border-radius: var(--radius);
  font-size: 14px; font-weight: 600; cursor: pointer; transition: all 0.15s; font-family: inherit;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff; box-shadow: 0 2px 6px rgba(0,102,179,0.25); flex: 1;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,102,179,0.35); }
.btn-ghost { background: #fff; color: var(--gray-700); border: 1.5px solid var(--gray-300); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-danger { background: #fff; color: var(--danger); border: 1.5px solid var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-sm { padding: 5px 12px; font-size: 12px; }

.result-box { min-height: 480px; }
.empty { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 400px; color: var(--gray-400); }
.empty-icon { font-size: 64px; margin-bottom: 12px; opacity: 0.4; }
.result-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff; padding: 16px 20px; border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  margin: -20px -20px 16px;
}
.rh-title { font-size: 11px; opacity: 0.9; letter-spacing: 1.5px; }
.rh-model { font-size: 24px; font-weight: 700; letter-spacing: 1px; margin: 4px 0; }
.rh-code { font-size: 13px; background: rgba(255,255,255,0.18); padding: 4px 10px; border-radius: 4px; display: inline-block; font-family: "Consolas", monospace; }
.rh-tag { display: inline-block; background: var(--accent); color: #fff; padding: 2px 8px; border-radius: 4px; font-size: 11px; margin-left: 8px; font-weight: 600; }
.perf-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 16px; }
.perf-card { background: var(--gray-50); padding: 12px; border-radius: var(--radius); border-left: 3px solid var(--primary); }
.perf-label { font-size: 11px; color: var(--gray-500); }
.perf-value { font-size: 18px; font-weight: 700; color: var(--primary-dark); margin-top: 2px; }
.perf-unit { font-size: 11px; color: var(--gray-400); margin-left: 2px; }
.dim-section { background: var(--gray-50); border-radius: var(--radius); padding: 14px; margin-bottom: 12px; }
.dim-section h4 { font-size: 13px; color: var(--primary-dark); margin-bottom: 10px; }
.dim-table { width: 100%; font-size: 12px; }
.dim-table td { padding: 4px 0; }
.dim-table td:first-child { color: var(--gray-500); width: 130px; }
.dim-table td:last-child { color: var(--gray-800); font-weight: 600; font-family: "Consolas", monospace; text-align: right; }
.action-bar { display: flex; gap: 8px; margin-top: 14px; }
.action-bar .btn { flex: 1; padding: 9px 12px; font-size: 13px; }

/* ============================================================
   性能表 + 表格通用
   ============================================================ */
.filter-bar {
  background: #fff; padding: 12px 16px; border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200); display: flex; align-items: center;
  flex-wrap: wrap; gap: 18px; margin-bottom: 14px;
}
.filter-group { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--gray-600); }
.filter-group select, .filter-group input {
  padding: 6px 10px; border: 1.5px solid var(--gray-300);
  border-radius: var(--radius); font-size: 13px; background: #fff; min-width: 140px; font-family: inherit;
}
.table-wrap {
  background: #fff; border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200); overflow: auto; max-height: 75vh;
}
.perf-table, .cart-table, .lookup-table, .user-table, .audit-table {
  width: 100%; border-collapse: collapse; font-size: 12px;
}
.perf-table th, .perf-table td,
.cart-table th, .cart-table td,
.lookup-table th, .lookup-table td,
.user-table th, .user-table td,
.audit-table th, .audit-table td {
  padding: 8px 10px; border: 1px solid var(--gray-200);
  text-align: center; white-space: nowrap;
}
.perf-table thead th, .cart-table thead th, .lookup-table thead th,
.user-table thead th, .audit-table thead th {
  background: var(--primary); color: #fff; font-weight: 600;
  position: sticky; top: 0; z-index: 1; font-size: 12px;
}
tbody tr:nth-child(even) { background: var(--gray-50); }
tbody tr:hover { background: var(--primary-bg); }
.perf-table .col-model { position: sticky; left: 0; background: var(--primary-light); color: #fff; font-weight: 600; z-index: 2; }
.perf-table .col-q { background: var(--primary-bg); font-weight: 600; }
.perf-table .col-p { background: #fff8e6; font-weight: 700; color: #d35400; }
.perf-table .cell-kw { color: var(--primary-dark); font-weight: 600; }
.perf-table .cell-noise { color: var(--success); }
.perf-table .cell-speed { color: var(--accent); }
.perf-table .cell-eff { color: #8e44ad; }
.perf-table .cell-na { color: var(--gray-300); }
.table-legend {
  display: flex; flex-wrap: wrap; gap: 16px; padding: 12px 16px; font-size: 12px;
  color: var(--gray-500); background: #fff; border: 1px solid var(--gray-200);
  border-top: none; border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}
.legend-item { display: flex; align-items: center; gap: 6px; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-blue { background: var(--primary); }
.dot-green { background: var(--success); }
.dot-orange { background: var(--accent); }
.dot-purple { background: #8e44ad; }

.tag-ok { display: inline-block; background: var(--success); color: #fff; padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 600; }
.tag-warn { display: inline-block; background: var(--warning); color: var(--gray-900); padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 600; }
.tag-info { display: inline-block; background: var(--primary); color: #fff; padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 600; }

/* ============================================================
   命名生成器
   ============================================================ */
.naming-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
.seg-group { display: flex; flex-wrap: wrap; gap: 6px; }
.seg {
  padding: 7px 14px; border: 1.5px solid var(--gray-300); background: #fff;
  border-radius: var(--radius); font-size: 13px; color: var(--gray-600);
  cursor: pointer; font-family: inherit; transition: all 0.15s;
}
.seg:hover { border-color: var(--primary); }
.seg.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.naming-result {
  background: linear-gradient(135deg, #1e3a5f 0%, #0066B3 100%);
  color: #fff; padding: 24px; border-radius: var(--radius);
  text-align: center; margin-bottom: 16px;
}
.naming-code {
  font-size: 24px; font-weight: 700;
  font-family: "Consolas", "Courier New", monospace;
  letter-spacing: 1px; word-break: break-all;
}
.naming-breakdown { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 16px; font-size: 12px; }
.nb-piece { background: rgba(255,255,255,0.18); padding: 4px 10px; border-radius: 4px; display: flex; align-items: center; gap: 4px; }
.nb-code { font-weight: 700; color: #ffd54f; }
.nb-name { opacity: 0.85; }
.naming-rules {
  font-size: 12px; color: var(--gray-500); background: var(--gray-50);
  padding: 12px; border-radius: var(--radius); max-height: 240px; overflow-y: auto;
}
.naming-rules table { width: 100%; }
.naming-rules td { padding: 3px 6px; }
.naming-rules td:first-child { color: var(--primary); font-weight: 600; font-family: "Consolas", monospace; }
.naming-rules td:nth-child(2) { color: var(--gray-700); }

/* ============================================================
   项目管理
   ============================================================ */
.project-toolbar { display: flex; gap: 8px; margin-bottom: 14px; }
.project-toolbar .btn { flex: 0 0 auto; padding: 9px 16px; }
.project-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 14px; }
.project-card {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 18px; transition: all 0.15s; cursor: pointer;
}
.project-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: var(--primary); }
.pc-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 10px; }
.pc-name { font-size: 15px; font-weight: 700; color: var(--primary-dark); }
.pc-status {
  font-size: 10px; padding: 2px 8px; border-radius: 10px;
  background: var(--success); color: #fff; font-weight: 600; text-transform: uppercase;
}
.pc-status.archived { background: var(--gray-400); }
.pc-info { font-size: 12px; color: var(--gray-600); line-height: 1.8; }
.pc-info .lbl { color: var(--gray-400); margin-right: 6px; min-width: 50px; display: inline-block; }
.pc-stats { display: flex; gap: 12px; margin-top: 12px; padding-top: 10px; border-top: 1px dashed var(--gray-200); }
.pc-stat { font-size: 11px; color: var(--gray-500); }
.pc-stat strong { color: var(--primary); font-size: 14px; display: block; }
.pc-actions { display: flex; gap: 6px; margin-top: 12px; }
.pc-actions .btn { flex: 1; padding: 6px 10px; font-size: 12px; }
.project-empty {
  text-align: center; padding: 60px 20px; color: var(--gray-400);
  background: #fff; border: 1px dashed var(--gray-300); border-radius: var(--radius-lg);
}

/* ============================================================
   选型清单
   ============================================================ */
.cart-toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; flex-wrap: wrap; }
.cart-toolbar .btn { flex: 0 0 auto; padding: 8px 16px; font-size: 13px; }
.cart-table input[type="text"] {
  border: none; background: transparent; font-size: 12px; width: 100%;
  text-align: center; font-family: inherit; color: var(--gray-700);
}
.cart-table input[type="text"]:focus { outline: 1px dashed var(--primary); background: #fff; }
.btn-del { background: transparent; border: none; color: var(--danger); cursor: pointer; font-size: 14px; padding: 2px 6px; }
.btn-del:hover { background: var(--danger); color: #fff; border-radius: 4px; }

/* ============================================================
   过滤器选配
   ============================================================ */
.filter-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; margin-bottom: 20px; }
.filter-card {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 16px; text-align: center; transition: all 0.15s;
}
.filter-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.fc-icon {
  width: 50px; height: 50px; background: var(--primary-bg); color: var(--primary);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 700; margin: 0 auto 10px;
}
.fc-name { font-size: 14px; font-weight: 600; color: var(--primary-dark); }
.fc-eff { font-size: 12px; color: var(--gray-500); margin-top: 4px; }
.fc-use { font-size: 12px; color: var(--gray-600); margin-top: 6px; line-height: 1.5; }
.filter-table-wrap, .maintenance-tip {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 20px; margin-bottom: 16px;
}
.maintenance-tip ul { padding-left: 22px; font-size: 13px; color: var(--gray-600); line-height: 2; }

/* ============================================================
   安装与维护
   ============================================================ */
.install-grid-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.install-list { padding-left: 22px; font-size: 13px; color: var(--gray-700); line-height: 1.9; }
.install-list li { margin-bottom: 4px; }
.fault-block { margin-bottom: 14px; padding: 10px; background: var(--gray-50); border-radius: var(--radius); border-left: 3px solid var(--accent); }
.fault-block:last-child { margin-bottom: 0; }
.fault-title { font-size: 13px; font-weight: 600; color: var(--primary-dark); margin-bottom: 6px; }
.fault-block ul { padding-left: 18px; font-size: 12px; color: var(--gray-600); }
.fault-block li { margin-bottom: 2px; }

/* ============================================================
   型号对比
   ============================================================ */
.compare-picker {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 16px; margin-bottom: 16px;
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
}
.compare-picker .picker-label { font-size: 13px; font-weight: 600; color: var(--gray-700); margin-right: 4px; }
.compare-picker .model-chip {
  padding: 5px 12px; border: 1.5px solid var(--gray-300);
  border-radius: 16px; font-size: 12px; color: var(--gray-600);
  background: #fff; cursor: pointer; user-select: none; transition: all 0.15s;
}
.compare-picker .model-chip:hover { border-color: var(--primary); }
.compare-picker .model-chip.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.compare-table { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); overflow: hidden; }
.compare-table table { width: 100%; border-collapse: collapse; font-size: 13px; }
.compare-table th, .compare-table td { padding: 10px 14px; border: 1px solid var(--gray-200); text-align: center; }
.compare-table thead th { background: var(--primary); color: #fff; font-weight: 600; }
.compare-table tbody th { background: var(--gray-50); text-align: left; font-weight: 600; color: var(--gray-700); width: 130px; }
.compare-table .best { background: #e8f5e9 !important; color: var(--success); font-weight: 700; }

/* ============================================================
   用户管理 + 审计日志
   ============================================================ */
.user-toolbar { display: flex; gap: 8px; margin-bottom: 12px; }
.user-toolbar .btn { flex: 0 0 auto; padding: 9px 16px; }
.user-table .role-admin { color: #E74C3C; font-weight: 700; }
.user-table .role-sales { color: var(--accent); font-weight: 700; }
.user-table .role-viewer { color: var(--success); font-weight: 700; }
.user-table .active-yes { color: var(--success); }
.user-table .active-no { color: var(--danger); }
.audit-table .audit-login { color: var(--success); }
.audit-table .audit-create { color: var(--primary); }
.audit-table .audit-update { color: var(--accent); }
.audit-table .audit-delete { color: var(--danger); }
.audit-table code {
  background: var(--gray-100); padding: 1px 6px; border-radius: 3px;
  font-family: "Consolas", monospace; font-size: 11px;
}

/* ============================================================
   关于产品
   ============================================================ */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.about-grid .card p { font-size: 13px; color: var(--gray-600); line-height: 1.8; margin-bottom: 10px; }
.motto { color: var(--primary); font-weight: 600; font-style: italic; padding: 8px 12px; background: var(--primary-bg); border-radius: var(--radius); border-left: 3px solid var(--primary); }
.contact-list { list-style: none; font-size: 13px; color: var(--gray-700); line-height: 2.2; }
.contact-list .lbl { color: var(--gray-400); margin-right: 6px; font-weight: 600; min-width: 56px; display: inline-block; }

/* ============================================================
   模态框
   ============================================================ */
.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5);
  display: none; align-items: center; justify-content: center;
  z-index: 2000; animation: fadeIn 0.2s;
}
.modal.active { display: flex; }
.modal-card {
  background: #fff; border-radius: var(--radius-lg);
  width: 480px; max-width: 90%; max-height: 90vh; overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.modal-header {
  padding: 16px 20px; font-size: 16px; font-weight: 600;
  color: var(--primary-dark); border-bottom: 1px solid var(--gray-200);
}
.modal-body { padding: 20px; }
.modal-body .form-row { margin-bottom: 14px; }
.modal-body label { display: block; font-size: 12px; font-weight: 600; color: var(--gray-700); margin-bottom: 4px; }
.modal-body input, .modal-body select, .modal-body textarea {
  width: 100%; padding: 8px 10px; border: 1.5px solid var(--gray-300);
  border-radius: var(--radius); font-size: 13px; font-family: inherit;
}
.modal-body input:focus, .modal-body select:focus, .modal-body textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,102,179,0.1);
}
.modal-footer {
  padding: 12px 20px; border-top: 1px solid var(--gray-200);
  display: flex; gap: 8px; justify-content: flex-end;
}
.modal-footer .btn { flex: 0 0 auto; padding: 8px 18px; }

/* ============================================================
   通用提示
   ============================================================ */
.toast {
  position: fixed; top: 90px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: #fff; padding: 10px 20px;
  border-radius: 6px; box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  z-index: 9999; font-size: 14px; animation: slideDown 0.3s;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
@keyframes slideDown { from { opacity: 0; transform: translate(-50%, -20px); } to { opacity: 1; transform: translate(-50%, 0); } }

.footer {
  background: var(--gray-800); color: var(--gray-400);
  text-align: center; padding: 14px; font-size: 12px;
  border-top: 3px solid var(--primary); flex-shrink: 0;
}
.footer div { margin: 2px 0; }

@media (max-width: 1100px) {
  .quick-grid, .naming-grid, .install-grid-layout, .about-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .nav-item { padding: 10px 14px; font-size: 0; }
  .nav-item .ico { margin-right: 0; }
  .nav-section { font-size: 0; padding: 8px; }
  .topbar { padding: 0 12px; height: 60px; }
  .brand-en, .product-en { display: none; }
  .perf-grid { grid-template-columns: repeat(2, 1fr); }
}