/* PAI 云报价 · 后台样式 */
:root {
  --primary: #2E75B6;
  --primary-dark: #1F4E79;
  --dark: #16324F;
  --bg: #F4F6F9;
  --border: #E5EAF0;
  --text: #1F2A37;
  --muted: #5A7186;
  --success: #2E9E6B;
  --danger: #D64545;
  --warning: #BF9000;
  --sidebar-w: 224px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', Arial, sans-serif;
  background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.6;
}
a { color: var(--primary); text-decoration: none; }
.mono { font-family: Consolas, 'Courier New', monospace; }
.muted { color: var(--muted); font-size: 12.5px; }
.num { text-align: right; }

/* ===== 后台布局 ===== */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-w); position: fixed; top: 0; bottom: 0; left: 0;
  background: linear-gradient(180deg, #16324F, #1B2942);
  color: #CFE0F0; display: flex; flex-direction: column; z-index: 20;
}
.sidebar .brand {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 18px 16px; border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar .brand .logo {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 8px;
  background: var(--primary); color: #fff; font-weight: 700; font-size: 17px;
}
.sidebar .brand b { color: #fff; font-size: 15px; display: block; line-height: 1.3; }
.sidebar .brand span { display: block; font-size: 11px; color: #8FA9C4; letter-spacing: .5px; }
.nav { padding: 12px; flex: 1; overflow-y: auto; }
.nav a {
  display: block; padding: 10px 12px; border-radius: 8px;
  color: #CFE0F0; font-size: 13.5px; margin-bottom: 2px;
}
.nav a:hover { background: rgba(255,255,255,.07); color: #fff; }
.nav a.active { background: var(--primary); color: #fff; font-weight: 600; }
.sidebar .foot {
  padding: 12px 18px; font-size: 11px; color: #7C93AC;
  border-top: 1px solid rgba(255,255,255,.08);
}
.main { flex: 1; margin-left: var(--sidebar-w); display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 56px; background: #fff; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; position: sticky; top: 0; z-index: 10;
}
.topbar .title { font-size: 16px; font-weight: 600; color: var(--dark); }
.topbar .right { display: flex; align-items: center; gap: 14px; }
.lang-switch { display: flex; align-items: center; gap: 8px; font-size: 12.5px; }
.lang-switch a { color: var(--muted); }
.lang-switch .cur { color: var(--primary); font-weight: 600; }
.user-chip { font-size: 13px; color: var(--dark); }
.content { padding: 24px; flex: 1; }

/* ===== 卡片 / KPI / 表格 ===== */
.page-head { margin-bottom: 18px; }
.page-head h1 { font-size: 20px; color: var(--dark); }
.section-title { font-size: 15px; color: var(--dark); margin: 22px 0 12px; }
.kpi-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px;
}
.kpi { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; }
.kpi .t { font-size: 12.5px; color: var(--muted); }
.kpi .v { font-size: 24px; font-weight: 700; color: var(--primary-dark); margin-top: 4px; }
.kpi-gold .v { color: var(--warning); }
.data-table {
  width: 100%; border-collapse: collapse; font-size: 13px;
  background: #fff; border: 1px solid var(--border); border-radius: 10px; overflow: hidden;
}
.data-table th {
  background: var(--dark); color: #fff; text-align: left; padding: 9px 12px; font-weight: 600;
}
.data-table td { padding: 9px 12px; border-bottom: 1px solid var(--border); }
.data-table tbody tr:nth-child(even) td { background: #F7FAFD; }
.data-table td.empty { text-align: center; color: var(--muted); padding: 28px 0; }

/* ===== 徽章 / 状态 ===== */
.badge {
  display: inline-block; border-radius: 6px; padding: 1px 9px; font-size: 12px;
  border: 1px solid transparent;
}
.badge-draft     { background: #F0F2F5; color: #5A7186; border-color: #DDE2E9; }
.badge-generated { background: #E8F2FB; color: #1F4E79; border-color: #C9DDF0; }
.badge-sent      { background: #E5F4FB; color: #12678A; border-color: #BEE3F2; }
.badge-paid      { background: #EAF6EF; color: #1F7A4D; border-color: #BFE3CC; }
.badge-expired   { background: #FFF8E6; color: #8A6D00; border-color: #F2DCA0; }
.badge-void      { background: #FDECEC; color: #A33; border-color: #F2C6C6; }

/* ===== 按钮 / 表单 ===== */
.btn {
  display: inline-block; border: 1px solid transparent; border-radius: 8px;
  padding: 8px 18px; font-size: 13.5px; cursor: pointer; line-height: 1.5;
  background: #EDF1F6; color: var(--text); transition: filter .15s;
}
.btn:hover { filter: brightness(.96); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--muted); }
.btn-sm { padding: 4px 12px; font-size: 12.5px; }
.btn-block { width: 100%; }
.inline-form { display: inline; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; color: var(--dark); margin-bottom: 5px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; font-family: inherit; outline: none; background: #fff;
}
.form-group input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(46,117,182,.12); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-section { font-size: 14px; color: var(--dark); margin: 18px 0 10px; padding-bottom: 6px; border-bottom: 1px solid var(--border); }
.checkbox { display: flex; align-items: center; gap: 8px; font-size: 13px; margin: 4px 0 16px; cursor: pointer; }

/* ===== Flash 消息 ===== */
.flash {
  border-radius: 10px; padding: 11px 16px; font-size: 13.5px; margin-bottom: 14px;
  transition: opacity .4s;
}
.flash.fade { opacity: 0; }
.flash-success { background: #EAF6EF; border: 1px solid #BFE3CC; color: #1F7A4D; }
.flash-error { background: #FDECEC; border: 1px solid #F2C6C6; color: #A33; }
.flash-info { background: #E8F2FB; border: 1px solid #C9DDF0; color: #1F4E79; }

/* ===== 空状态 ===== */
.empty-state {
  background: #fff; border: 1px dashed var(--border); border-radius: 12px;
  padding: 56px 24px; text-align: center; color: var(--muted);
}
.empty-icon { font-size: 30px; color: #C3CFDC; margin-bottom: 10px; }

/* ===== 认证 / 安装页 ===== */
.auth-body {
  background: linear-gradient(135deg, #16324F, #2E75B6);
  min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px;
}
.auth-wrap { width: 100%; max-width: 400px; }
.auth-card {
  background: #fff; border-radius: 16px; padding: 36px 32px;
  box-shadow: 0 12px 40px rgba(10, 30, 55, .35);
}
.auth-card h1 { font-size: 21px; color: var(--dark); }
.auth-brand {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 10px; margin-bottom: 14px;
  background: var(--primary); color: #fff; font-weight: 700; font-size: 22px;
}
.auth-sub { font-size: 13px; color: var(--muted); margin: 4px 0 22px; }
.install-card { max-height: 92vh; overflow-y: auto; }
.install-checks { margin: 6px 0 8px; }
.check { font-size: 13px; padding: 5px 0; color: var(--text); }
.check .mark { display: inline-block; width: 20px; font-weight: 700; }
.check.ok .mark { color: var(--success); }
.check.bad { color: var(--danger); }
.check.bad .mark { color: var(--danger); }

/* ===== 表单卡片 / 操作按钮组 ===== */
.form-card {
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  padding: 22px 24px; max-width: 760px;
}
.form-actions { display: flex; gap: 10px; margin-top: 18px; }
.btn-danger { color: var(--danger); }
.btn-danger:hover { background: #FDECEC; }

/* ===== 筛选条 ===== */
.filter-bar {
  display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap;
}
.filter-bar input, .filter-bar select {
  padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 13.5px; background: #fff; outline: none; min-width: 120px;
}
.filter-bar input:focus, .filter-bar select:focus { border-color: var(--primary); }

/* ===== 缩略图 ===== */
.thumb {
  display: inline-block; width: 52px; height: 52px; border-radius: 8px;
  object-fit: cover; border: 1px solid var(--border); background: #fff;
}
.thumb-none {
  display: inline-flex; align-items: center; justify-content: center;
  color: #C3CFDC; font-size: 14px;
}

/* ===== 表格操作列 ===== */
.data-table td.actions { white-space: nowrap; }
.data-table td.actions > * { margin-right: 4px; }

/* ===== 分页 ===== */
.pager { display: flex; gap: 6px; margin-top: 16px; flex-wrap: wrap; }
.pager a, .pager .cur {
  display: inline-block; min-width: 32px; text-align: center;
  padding: 5px 10px; border-radius: 8px; font-size: 13px;
  border: 1px solid var(--border); background: #fff; color: var(--text);
}
.pager a:hover { border-color: var(--primary); color: var(--primary); }
.pager .cur { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ===== 图片管理网格 ===== */
.image-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px; margin-bottom: 16px;
}
.image-item {
  border: 1px solid var(--border); border-radius: 10px; overflow: hidden;
  background: #fff; position: relative;
}
.image-item.is-main { border-color: var(--success); box-shadow: 0 0 0 1px var(--success); }
.image-item img { width: 100%; height: 110px; object-fit: cover; display: block; }
.image-meta {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 8px; gap: 4px;
}

/* ===== 页头 ===== */
.page-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 18px; gap: 12px; flex-wrap: wrap;
}
.page-head h1 { font-size: 20px; color: var(--dark); }

/* ===== 报价编辑器 ===== */
.quote-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px; background: #fff; border: 1px solid var(--border);
  border-radius: 12px; padding: 18px 20px; margin-bottom: 6px;
}
.items-table input {
  width: 100%; padding: 6px 8px; border: 1px solid var(--border);
  border-radius: 6px; font-size: 13px; outline: none;
}
.items-table input:focus { border-color: var(--primary); }
.items-table .row-no { color: var(--muted); text-align: center; }
.items-table .cell-amount { font-weight: 600; }
.table-wrap { overflow-x: auto; }
.items-toolbar {
  display: flex; gap: 10px; margin: 12px 0 4px; align-items: center; flex-wrap: wrap;
}
.items-toolbar select {
  padding: 7px 10px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 13px; min-width: 260px; background: #fff;
}
.totals-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px; background: #fff; border: 1px solid var(--border);
  border-radius: 12px; padding: 18px 20px;
}
.totals-bar {
  display: flex; align-items: center; justify-content: flex-end; gap: 28px;
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 20px; margin-top: 10px; flex-wrap: wrap;
}
.totals-bar b { font-size: 15px; color: var(--dark); }
.totals-bar .grand { font-size: 16px; }
.totals-bar .grand b { color: var(--primary-dark); font-size: 22px; }
.status-bar {
  display: flex; gap: 10px; background: #fff; border: 1px solid var(--border);
  border-radius: 12px; padding: 14px 18px; flex-wrap: wrap;
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .sidebar { position: static; width: 100%; }
  .app { flex-direction: column; }
  .main { margin-left: 0; }
  .nav { display: flex; flex-wrap: wrap; gap: 4px; }
  .nav a { margin-bottom: 0; }
  .form-row { grid-template-columns: 1fr; }
}