/* ==========================================================================
   科研试剂价格监控平台 · 设计系统 v2（深色侧栏 + 浅色内容）
   与 styles.css 并存，页面通过切换 <link> 选择版本，可随时回退。
   ========================================================================== */

:root {
  /* 侧边栏（深色） */
  --nav-bg: #131a2b;
  --nav-text: #8b96ad;
  --nav-text-strong: #dbe2ee;
  --nav-hover: rgba(255, 255, 255, 0.06);
  --nav-active: #2563eb;
  --nav-divider: rgba(255, 255, 255, 0.07);

  /* 内容区（浅色） */
  --bg: #f5f7fa;
  --surface: #ffffff;
  --surface-2: #f9fafb;
  --border: #e8ecf1;
  --border-soft: #f2f4f7;

  /* 文字 */
  --text: #101828;
  --text-2: #667085;
  --text-3: #98a2b3;

  /* 主色 */
  --accent: #2563eb;
  --accent-soft: #eef2ff;
  --accent-text: #4338ca;

  /* 语义色 */
  --danger: #d92d20;
  --danger-soft: #fef3f2;
  --success: #027a48;
  --success-soft: #ecfdf3;
  --warning: #b54708;
  --warning-soft: #fffaeb;

  /* 平台标识色 */
  --p-casmart: #4338ca;
  --p-casmart-soft: #eef2ff;
  --p-rjmart: #027a48;
  --p-rjmart-soft: #ecfdf3;
  --p-dingxiang: #a16207;
  --p-dingxiang-soft: #fdf6ec;

  --radius: 10px;
  --radius-sm: 7px;
  --radius-xs: 5px;
  --sidebar-w: 200px;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* ==========================================================================
   应用外壳
   ========================================================================== */

.app-shell { display: flex; min-height: 100vh; }

.app-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

/* ---------- 侧边栏 ---------- */

.sidebar {
  width: var(--sidebar-w);
  flex: 0 0 var(--sidebar-w);
  background: var(--nav-bg);
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 16px 11px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 7px;
}

.sidebar-mark {
  width: 23px;
  height: 23px;
  border-radius: 7px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}

.sidebar-name {
  font-size: 12.5px;
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.1px;
  white-space: nowrap;
}

.sidebar-nav { display: flex; flex-direction: column; gap: 2px; }

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 9px;
  border-radius: var(--radius-sm);
  color: var(--nav-text);
  font-size: 12.5px;
  transition: background 0.12s, color 0.12s;
}

.sidebar-nav a:hover { background: var(--nav-hover); color: var(--nav-text-strong); }

.sidebar-nav a.active {
  background: var(--nav-active);
  color: #fff;
  font-weight: 500;
}

.sidebar-nav .nav-badge {
  margin-left: auto;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 99px;
  background: rgba(248, 113, 113, 0.2);
  color: #f87171;
  font-variant-numeric: tabular-nums;
}

.sidebar-nav a.active .nav-badge { background: rgba(255, 255, 255, 0.22); color: #fff; }

.sidebar-foot {
  margin-top: auto;
  padding: 9px 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  font-size: 10.5px;
  color: var(--nav-text);
  line-height: 1.7;
}

.sidebar-foot .dot-row { display: flex; align-items: center; gap: 6px; margin-bottom: 2px; }
.sidebar-foot .dot { width: 6px; height: 6px; border-radius: 50%; background: #34d399; flex: 0 0 auto; }
.sidebar-foot .dot.is-down { background: #f87171; }
.sidebar-foot strong { color: var(--nav-text-strong); font-weight: 500; }

/* ---------- 页头 ---------- */

.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 22px 14px;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.header h1 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.2px;
}

.header .subtitle {
  font-size: 12px;
  color: var(--text-2);
  margin-top: 3px;
}

.header-actions { display: flex; gap: 7px; flex-wrap: wrap; }

/* ---------- 主体 ---------- */

.main-container {
  flex: 1;
  padding: 16px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer {
  padding: 12px 22px 18px;
  font-size: 11.5px;
  color: var(--text-3);
  border-top: 1px solid var(--border);
  background: var(--surface);
}

/* ==========================================================================
   按钮
   ========================================================================== */

.btn {
  font-family: inherit;
  font-size: 12.5px;
  padding: 6px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
  white-space: nowrap;
}

.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 500; }
.btn-primary:hover { background: #1d4ed8; border-color: #1d4ed8; }

.btn-secondary { background: var(--surface); border-color: #d0d5dd; color: #344054; }
.btn-secondary:hover { background: var(--surface-2); border-color: #b8c0cc; }

.btn-ghost { background: transparent; border-color: transparent; color: var(--text-2); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }

.btn-danger { background: var(--danger-soft); border-color: #fecdca; color: var(--danger); }
.btn-danger:hover { background: #fee4e2; }

.btn-link {
  background: none;
  border: none;
  padding: 2px 6px;
  font-family: inherit;
  font-size: 12.5px;
  color: var(--accent);
  cursor: pointer;
  border-radius: var(--radius-xs);
}
.btn-link:hover { background: var(--accent-soft); }
.btn-link.btn-danger { background: none; color: var(--danger); }
.btn-link.btn-danger:hover { background: var(--danger-soft); }

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ==========================================================================
   表单
   ========================================================================== */

.input {
  font-family: inherit;
  font-size: 13px;
  padding: 7px 11px;
  border-radius: var(--radius-sm);
  border: 1px solid #d0d5dd;
  background: var(--surface);
  color: var(--text);
  width: 100%;
  transition: border-color 0.12s, box-shadow 0.12s;
}

.input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.input::placeholder { color: var(--text-3); }

select.input { cursor: pointer; }

.file-input { padding: 6px 9px; font-size: 12.5px; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px 18px;
  padding: 16px 22px 20px;
}

.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field > span, .field > legend { font-size: 12.5px; font-weight: 500; color: var(--text); }
.field-full { grid-column: 1 / -1; }
.field-inline { display: flex; align-items: center; gap: 8px; }
.field-inline .input { width: auto; flex: 1; }
.field-inline-short .input { max-width: 96px; flex: 0 0 auto; }
.field-unit { font-size: 12.5px; color: var(--text-2); flex: 0 0 auto; }
.field-hint { font-size: 11.5px; color: var(--text-3); line-height: 1.6; }
.field-note {
  font-size: 11.5px;
  color: var(--text-2);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  line-height: 1.7;
}
.field-actions { display: flex; gap: 8px; align-items: flex-end; flex-wrap: wrap; }

/* 表单变体 */
.catalog-form { padding: 14px 22px 20px; }
.settings-form-grid { gap: 14px 18px; }
.import-actions { display: flex; flex-direction: row; flex-wrap: wrap; align-items: center; gap: 8px; }
.logo { display: block; }

.schedule-weekdays { border: none; }
.weekday-options { display: flex; gap: 5px; flex-wrap: wrap; margin-top: 2px; }

.weekday-option {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12.5px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid #d0d5dd;
  background: var(--surface);
  color: var(--text-2);
  cursor: pointer;
  transition: all 0.12s;
}

.weekday-option input { display: none; }
.weekday-option:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-text);
  font-weight: 500;
}

/* ==========================================================================
   卡片与区块
   ========================================================================== */

.table-container,
.control-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.control-card { padding: 18px 20px; }

.settings-control-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 14px;
  align-items: start;
}

.settings-intro { padding: 2px 2px 0; }

.section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 22px 0;
  flex-wrap: wrap;
}

.control-card .section-header { padding: 0 0 14px; border-bottom: 1px solid var(--border-soft); }

.section-title { font-size: 14px; font-weight: 600; color: var(--text); letter-spacing: -0.1px; }
.section-title.small { font-size: 13.5px; }
.section-caption { font-size: 12px; color: var(--text-2); margin-top: 3px; }

.catalog-header-pad { padding-bottom: 4px; }

/* ==========================================================================
   工具栏
   ========================================================================== */

.table-toolbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 22px 14px;
  flex-wrap: wrap;
}

.table-search {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

.table-search > span { font-size: 12px; color: var(--text-2); white-space: nowrap; }
.table-search .input { width: 210px; }

/* ==========================================================================
   筛选标签
   ========================================================================== */

.filter-tabs { display: flex; gap: 6px; flex-wrap: wrap; }

.filter-tab {
  font-family: inherit;
  font-size: 12.5px;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.12s;
}

.filter-tab:hover { border-color: #c9d0da; color: var(--text); }

.filter-tab.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-text);
  font-weight: 500;
}

.filter-tab .count {
  font-size: 11px;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}

.filter-tab.active .count { color: var(--accent-text); }

/* ==========================================================================
   平台概览卡
   ========================================================================== */

.platform-overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
}

.platform-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 13px 15px;
}

.platform-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.platform-name { font-size: 12.5px; font-weight: 600; color: var(--text); }

.platform-badge {
  font-size: 10.5px;
  padding: 2px 8px;
  border-radius: 99px;
  background: var(--surface-2);
  color: var(--text-2);
  border: 1px solid var(--border);
}

.platform-badge.active { background: var(--success-soft); color: var(--success); border-color: #d3f0de; }

.platform-stats { display: flex; gap: 22px; }
.stat-item { display: flex; flex-direction: column; gap: 1px; }
.stat-value { font-size: 22px; font-weight: 600; line-height: 1.3; font-variant-numeric: tabular-nums; }
.stat-label { font-size: 11.5px; color: var(--text-2); }

.platform-card.kasima .stat-value { color: var(--p-casmart); }
.platform-card.rjmart .stat-value { color: var(--p-rjmart); }
.platform-card.dingxiang .stat-value { color: var(--p-dingxiang); }

/* ==========================================================================
   表格
   ========================================================================== */

.table-wrapper { overflow-x: auto; padding: 0 0 4px; }

table { width: 100%; border-collapse: collapse; }

thead th {
  font-size: 11.5px;
  font-weight: 500;
  color: var(--text-2);
  text-align: left;
  padding: 9px 12px;
  background: var(--surface-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-soft);
  font-size: 12.5px;
  color: var(--text);
  vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: #fbfcfd; }

.compact-table thead th { padding: 8px 12px; }
.compact-table tbody td { padding: 9px 12px; }

.sort-header {
  font-family: inherit;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--text-2);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.sort-header:hover { color: var(--text); }
.sort-header.is-active { color: var(--accent); }

.sku-code {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-2);
  white-space: nowrap;
}

.cell-title {
  color: var(--text);
  display: block;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cell-meta { font-size: 11px; color: var(--text-3); display: block; margin-top: 2px; }

.price-strong { font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; }
.price-muted { color: var(--text-3); font-variant-numeric: tabular-nums; white-space: nowrap; }

.drop-good { color: var(--success); }
.drop-bad { color: var(--danger); }

.row-actions { display: flex; gap: 2px; flex-wrap: wrap; align-items: center; }

/* ==========================================================================
   状态与标签
   ========================================================================== */

.status-badge {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 99px;
  white-space: nowrap;
}

.status-ok, .status-resolved { background: var(--success-soft); color: var(--success); }
.status-alert, .status-open, .status-error { background: var(--danger-soft); color: var(--danger); }
.status-login, .status-login_required { background: var(--warning-soft); color: var(--warning); }
.status-not, .status-not_found { background: var(--surface-2); color: var(--text-2); border: 1px solid var(--border); }

.platform-tag {
  display: inline-flex;
  align-items: center;
  font-size: 10.5px;
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  white-space: nowrap;
}

.platform-tag.casmart { background: var(--p-casmart-soft); color: var(--p-casmart); }
.platform-tag.rjmart { background: var(--p-rjmart-soft); color: var(--p-rjmart); }
.platform-tag.dingxiang { background: var(--p-dingxiang-soft); color: var(--p-dingxiang); }

/* ==========================================================================
   分页
   ========================================================================== */

.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 22px 16px;
  flex-wrap: wrap;
}

.page-info { font-size: 11.5px; color: var(--text-2); }
.page-size { display: flex; align-items: center; gap: 7px; font-size: 11.5px; color: var(--text-2); }
.page-size-select { width: auto; padding: 4px 8px; font-size: 12px; }
.page-btn {
  font-family: inherit;
  font-size: 12px;
  padding: 4px 11px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  cursor: pointer;
}
.page-btn:hover:not(:disabled) { border-color: #c9d0da; color: var(--text); }
.page-btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ==========================================================================
   日志页
   ========================================================================== */

.log-summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.log-summary-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 13px 15px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.log-summary-card span { font-size: 11.5px; color: var(--text-2); }
.log-summary-card strong { font-size: 20px; font-weight: 600; color: var(--text); font-variant-numeric: tabular-nums; }
.log-summary-card em { font-size: 11px; color: var(--text-3); font-style: normal; }

.sales-log-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 10px;
  padding: 0 22px 20px;
}

.sales-log-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  background: var(--surface);
}

.sales-log-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.sales-log-head strong { font-size: 12.5px; font-weight: 600; }
.sales-log-metrics { display: flex; gap: 18px; margin-bottom: 8px; }
.sales-log-metrics div { display: flex; flex-direction: column; }
.sales-log-metrics b { font-size: 16px; font-weight: 600; font-variant-numeric: tabular-nums; }
.sales-log-metrics small { font-size: 10.5px; color: var(--text-3); }
.sales-company-list { display: flex; flex-wrap: wrap; gap: 5px; }
.sales-more { font-size: 11px; color: var(--text-3); align-self: center; }

.log-panel {
  margin: 0 22px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  max-height: 560px;
  overflow-y: auto;
  padding: 10px 12px;
}

.log-event {
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 5px 8px;
  border-radius: var(--radius-xs);
  margin-bottom: 2px;
  color: var(--text-2);
  line-height: 1.65;
  word-break: break-all;
}

.log-event-title { color: var(--text); }
.log-event-meta { color: var(--text-3); font-size: 11px; }
.log-event-detail { color: var(--text-2); }
.log-event-main { display: block; }

.log-info { background: rgba(37, 99, 235, 0.05); }
.log-success { background: rgba(2, 122, 72, 0.06); }
.log-error { background: rgba(217, 45, 32, 0.07); color: var(--danger); }
.log-running { background: rgba(180, 71, 8, 0.07); }
.log-mail { background: rgba(67, 56, 202, 0.05); }

.log-empty { padding: 22px; text-align: center; color: var(--text-3); font-size: 12px; }
.log-empty.compact { padding: 14px; }
.log-raw { font-family: var(--mono); font-size: 11px; color: var(--text-3); white-space: pre-wrap; }

.mail-sent { color: var(--success); }
.mail-pending { color: var(--warning); }

/* ==========================================================================
   空状态 / 提示
   ========================================================================== */

.empty-state { padding: 34px 20px; text-align: center; color: var(--text-3); font-size: 12.5px; line-height: 1.8; }
.empty-state.compact { padding: 18px; }

/* ==========================================================================
   Toast
   ========================================================================== */

.toast-container {
  position: fixed;
  right: 20px;
  bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 90;
}

.toast {
  background: var(--text);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 11px 15px;
  min-width: 220px;
  max-width: 340px;
  box-shadow: 0 8px 24px rgba(16, 24, 40, 0.18);
  animation: toast-in 0.18s ease-out;
}

.toast-title { font-size: 12.5px; font-weight: 600; }
.toast-message { font-size: 12px; color: rgba(255, 255, 255, 0.78); margin-top: 2px; }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in { animation: fade-in 0.2s ease-out; }
@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ==========================================================================
   响应式
   ========================================================================== */

@media (max-width: 860px) {
  .app-shell { flex-direction: column; }

  .sidebar {
    width: 100%;
    flex: 0 0 auto;
    height: auto;
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    overflow-x: auto;
  }

  .sidebar-nav { flex-direction: row; gap: 4px; }
  .sidebar-nav a { white-space: nowrap; }
  .sidebar-foot { display: none; }
  .sidebar-brand .sidebar-name { display: none; }

  .header { padding: 14px 16px 12px; }
  .main-container { padding: 14px 16px 20px; }
  .table-toolbar, .section-header, .form-grid, .pagination { padding-left: 16px; padding-right: 16px; }
  .sales-log-grid, .log-panel { margin-left: 16px; margin-right: 16px; }
  .sales-log-grid { padding-left: 0; padding-right: 0; }
  .table-search .input { width: 150px; }
  .header-actions .btn { font-size: 12px; padding: 5px 10px; }
}