/**
 * OEM 后台 · Warm Tech Intelligence 设计系统
 * 与景维前端 (frontend/src/assets/theme.css) 配色保持一致
 * 主色：琥珀金 (Deep Amber)；辅色：石板蓝灰 (Slate)
 */

:root {
  /* ========== 色彩系统 ========== */
  --vm-bg: #faf9f6;
  --vm-bg-deep: #f4f3f1;

  --vm-surface-lowest: #ffffff;
  --vm-surface-low: #f4f3f1;
  --vm-surface: #efeeeb;
  --vm-surface-high: #e9e8e5;

  /* 琥珀金主色 */
  --vm-primary: #855300;
  --vm-primary-container: #f59e0b;
  --vm-on-primary: #ffffff;
  --vm-on-primary-container: #613b00;
  --vm-primary-fixed: #ffddb8;

  /* 石板蓝灰辅色 */
  --vm-secondary: #545f73;
  --vm-secondary-container: #d5e0f8;

  --vm-text: #1a1c1a;
  --vm-text-secondary: #534434;
  --vm-text-tertiary: #867461;
  --vm-text-inverse: #f2f1ee;

  --vm-border: #d8c3ad;
  --vm-border-light: #e9e8e5;
  --vm-border-focus: #f59e0b;

  --vm-success: #10b981;
  --vm-success-bg: #ecfdf5;
  --vm-warning: #f59e0b;
  --vm-warning-bg: #fffbeb;
  --vm-error: #ba1a1a;
  --vm-error-bg: #fef2f2;
  --vm-info: #545f73;
  --vm-info-bg: #f0f4f8;

  --vm-shadow-card: 0 4px 20px rgba(245, 158, 11, 0.05);
  --vm-shadow-soft: 0 2px 12px rgba(133, 83, 0, 0.08);
  --vm-shadow-glow: 0 0 15px rgba(245, 158, 11, 0.3);

  --vm-radius-sm: 4px;
  --vm-radius: 8px;
  --vm-radius-md: 12px;
  --vm-radius-lg: 16px;
  --vm-radius-full: 9999px;

  --vm-space-xs: 4px;
  --vm-space-sm: 8px;
  --vm-space: 16px;
  --vm-space-lg: 24px;
  --vm-space-xl: 40px;

  --vm-font-sans: 'Hanken Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI',
    'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --vm-font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', Consolas, monospace;

  --vm-transition: 200ms;
  --vm-ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== Global reset ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--vm-font-sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--vm-text);
  background: var(--vm-bg);
  letter-spacing: 0.02em;
  min-height: 100vh;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--vm-border); border-radius: var(--vm-radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--vm-text-tertiary); }

::selection { background: rgba(245, 158, 11, 0.25); color: var(--vm-primary); }

/* ========== Top bar ========== */
.topbar {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--vm-border-light);
  padding: 14px 28px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 1px 3px rgba(133, 83, 0, 0.04);
}
.topbar h1 {
  font-size: 17px; font-weight: 700;
  color: var(--vm-primary);
  letter-spacing: -0.01em;
  display: flex; align-items: center; gap: 10px;
}
.topbar h1::before {
  content: '';
  width: 8px; height: 8px;
  background: var(--vm-primary-container);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.5);
}
.topbar-right { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--vm-text-secondary); }
.topbar-right a {
  color: var(--vm-primary-container);
  text-decoration: none; cursor: pointer;
  font-weight: 500;
  transition: color var(--vm-transition) var(--vm-ease);
}
.topbar-right a:hover { color: var(--vm-primary); }

/* ========== Container ========== */
.container { max-width: 1280px; margin: 24px auto; padding: 0 24px; }
h2 { font-size: 18px; color: var(--vm-text); margin-bottom: 16px; font-weight: 600; }

/* ========== Cards ========== */
.card {
  background: var(--vm-surface-lowest);
  border: 1px solid var(--vm-border-light);
  border-radius: var(--vm-radius-md);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--vm-shadow-card);
  transition: border-color var(--vm-transition) var(--vm-ease),
              box-shadow var(--vm-transition) var(--vm-ease);
}
.card:hover {
  border-color: rgba(245, 158, 11, 0.3);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.08);
}
.card-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px; padding-bottom: 12px;
  border-bottom: 1px solid var(--vm-border-light);
}
.card-title { font-size: 15px; font-weight: 600; color: var(--vm-text); letter-spacing: -0.01em; }
.card-actions { display: flex; gap: 8px; align-items: center; }

/* ========== Tabs ========== */
.tab-bar {
  display: flex; gap: 4px; margin-bottom: 20px;
  background: var(--vm-surface-lowest);
  padding: 4px; border-radius: var(--vm-radius-md);
  border: 1px solid var(--vm-border-light);
  box-shadow: var(--vm-shadow-card);
}
.tab {
  flex: 1; text-align: center;
  padding: 11px;
  border-radius: var(--vm-radius);
  cursor: pointer;
  font-size: 14px; font-weight: 500;
  color: var(--vm-text-secondary);
  transition: all var(--vm-transition) var(--vm-ease);
  user-select: none;
}
.tab.active {
  background: var(--vm-primary-container);
  color: var(--vm-on-primary);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
  font-weight: 600;
}
.tab:hover:not(.active) {
  background: var(--vm-surface-low);
  color: var(--vm-primary);
}
.panel { display: none; }
.panel.active { display: block; animation: fadeIn 0.2s var(--vm-ease); }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========== Forms ========== */
input, select, textarea {
  padding: 10px 12px;
  border: 1px solid var(--vm-border);
  border-radius: var(--vm-radius);
  font-size: 14px;
  outline: none;
  font-family: inherit;
  background: var(--vm-surface-lowest);
  color: var(--vm-text);
  transition: border-color var(--vm-transition) var(--vm-ease),
              box-shadow var(--vm-transition) var(--vm-ease);
}
input:hover, select:hover, textarea:hover {
  border-color: var(--vm-text-tertiary);
}
input:focus, select:focus, textarea:focus {
  border-color: var(--vm-primary-container);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}
input[disabled] { background: var(--vm-surface-low); cursor: not-allowed; color: var(--vm-text-tertiary); }
textarea { resize: vertical; min-height: 60px; }
input::placeholder, textarea::placeholder { color: var(--vm-text-tertiary); }

.input-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.input-row > input, .input-row > select { flex: 1; min-width: 160px; }
.field { margin-bottom: 14px; }
.field label {
  display: block; font-size: 12px;
  color: var(--vm-text-secondary); margin-bottom: 4px;
  font-weight: 500;
}
.field input, .field select, .field textarea { width: 100%; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 16px; }

/* ========== Buttons ========== */
button {
  padding: 9px 18px;
  border: none;
  border-radius: var(--vm-radius);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--vm-transition) var(--vm-ease);
  font-weight: 500;
  font-family: inherit;
  letter-spacing: 0.02em;
}
button:active:not(:disabled) { transform: scale(0.98); }

.btn-primary {
  background: var(--vm-primary-container);
  color: var(--vm-on-primary);
}
.btn-primary:hover:not(:disabled) {
  background: #e8910a;
  box-shadow: var(--vm-shadow-glow);
  transform: translateY(-1px);
}

.btn-danger {
  background: var(--vm-error-bg);
  color: var(--vm-error);
  border: 1px solid rgba(186, 26, 26, 0.2);
}
.btn-danger:hover:not(:disabled) {
  background: var(--vm-error);
  color: var(--vm-on-primary);
  border-color: var(--vm-error);
}

.btn-warn {
  background: var(--vm-warning-bg);
  color: var(--vm-warning);
  border: 1px solid rgba(245, 158, 11, 0.25);
}
.btn-warn:hover:not(:disabled) {
  background: var(--vm-warning);
  color: var(--vm-on-primary);
}

.btn-secondary {
  background: var(--vm-surface-low);
  color: var(--vm-text-secondary);
  border: 1px solid var(--vm-border);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--vm-surface);
  color: var(--vm-primary);
  border-color: var(--vm-primary-container);
}

.btn-link {
  background: transparent;
  color: var(--vm-primary);
  padding: 4px 8px;
}
.btn-link:hover { background: rgba(245, 158, 11, 0.1); }

.btn-sm { padding: 5px 10px; font-size: 12px; }
button:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ========== Tables ========== */
table { width: 100%; border-collapse: collapse; }
th, td {
  text-align: left;
  padding: 11px 12px;
  border-bottom: 1px solid var(--vm-border-light);
  font-size: 13px;
  vertical-align: middle;
}
th {
  background: var(--vm-surface-low);
  font-weight: 600;
  color: var(--vm-text-secondary);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
tr:hover td { background: rgba(245, 158, 11, 0.03); }

/* 操作列:窄宽度(95px),按钮紧凑右对齐 */
td.actions, th.actions-head {
  width: 95px;
  min-width: 95px;
  text-align: right;
  white-space: nowrap;
}
td.actions {
  text-align: right;
  vertical-align: middle;
}
td.actions .btn-link.btn-sm {
  margin-left: 0;
  padding: 4px 6px;
  font-size: 12px;
}

/* 数字列:右对齐 + 等宽数字 */
td.col-num, th.col-num {
  text-align: right;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
td.col-id, th.col-id {
  text-align: right;
  font-variant-numeric: tabular-nums;
  width: 50px;
  white-space: nowrap;
}

/* 紧凑双行单元格:主值在上,副值在下(灰色小字)
   注意:不要在 td 上加 nowrap,否则 flex column 会异常 */
.cell-compact {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  line-height: 1.3;
}
.cell-compact.col-num, .cell-compact.col-num .muted {
  align-items: flex-end;
  text-align: right;
}
.cell-compact .muted {
  font-size: 11px;
  color: var(--vm-text-muted);
}

/* 表格内副标题:<br><small> 双行布局,行间距紧凑 */
td small.muted {
  font-size: 11px;
  color: var(--vm-text-muted);
  font-weight: normal;
  line-height: 1.2;
}

/* 文本工具类 */
.text-danger { color: var(--vm-error); }
.text-success { color: var(--vm-success); }
.text-warning { color: var(--vm-warning); }
.text-muted { color: var(--vm-text-muted); }
.code-text {
  font-family: var(--vm-font-mono);
  background: var(--vm-surface-low);
  padding: 3px 8px;
  border-radius: var(--vm-radius-sm);
  font-size: 12px;
  color: var(--vm-primary);
  border: 1px solid var(--vm-border-light);
}

/* ========== Tags / Badges ========== */
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--vm-radius-full);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
}
.tag-active { background: var(--vm-success-bg); color: var(--vm-success); }
.tag-disabled { background: var(--vm-error-bg); color: var(--vm-error); }
.tag-expired { background: var(--vm-warning-bg); color: var(--vm-warning); }
.tag-online { background: var(--vm-success-bg); color: var(--vm-success); }
.tag-offline { background: var(--vm-surface); color: var(--vm-text-tertiary); }

/* 套餐标签 - 用品牌色变体 */
.tag-plan-TRY { background: rgba(84, 95, 115, 0.12); color: var(--vm-secondary); }
.tag-plan-STD { background: var(--vm-info-bg); color: var(--vm-info); }
.tag-plan-PRO { background: rgba(245, 158, 11, 0.12); color: var(--vm-primary); }
.tag-plan-ENT { background: rgba(133, 83, 0, 0.1); color: var(--vm-primary); border: 1px solid rgba(245, 158, 11, 0.25); }

/* ========== KPI cards ========== */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 16px; }
.kpi-card {
  background: var(--vm-surface-lowest);
  border: 1px solid var(--vm-border-light);
  border-radius: var(--vm-radius-md);
  padding: 18px 20px;
  box-shadow: var(--vm-shadow-card);
  transition: transform var(--vm-transition) var(--vm-ease),
              box-shadow var(--vm-transition) var(--vm-ease),
              border-color var(--vm-transition) var(--vm-ease);
}
.kpi-card:hover {
  transform: translateY(-2px);
  border-color: rgba(245, 158, 11, 0.3);
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.1);
}
.kpi-label {
  font-size: 12px;
  color: var(--vm-text-tertiary);
  margin-bottom: 6px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.kpi-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--vm-text);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.kpi-value.success { color: var(--vm-success); }
.kpi-value.warn { color: var(--vm-warning); }
.kpi-sub { font-size: 11px; color: var(--vm-text-tertiary); margin-top: 4px; }

/* ========== Modal ========== */
.modal {
  display: none;
  position: fixed; inset: 0;
  background: rgba(26, 28, 26, 0.5);
  backdrop-filter: blur(4px);
  z-index: 1000;
  align-items: center; justify-content: center;
  padding: 20px;
}
.modal.show { display: flex; animation: fadeIn 0.2s var(--vm-ease); }
.modal-card {
  background: var(--vm-surface-lowest);
  border-radius: var(--vm-radius-lg);
  padding: 28px;
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 64px rgba(133, 83, 0, 0.15);
  border: 1px solid var(--vm-border-light);
}
.modal-card h3 {
  margin-bottom: 18px;
  font-size: 17px;
  color: var(--vm-text);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.modal-foot {
  display: flex; gap: 8px;
  justify-content: flex-end;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--vm-border-light);
}

/* ========== Toast ========== */
.toast {
  position: fixed;
  top: 70px; right: 30px;
  padding: 12px 18px;
  border-radius: var(--vm-radius);
  color: white;
  font-size: 14px;
  z-index: 3000;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
  display: none;
  font-weight: 500;
  max-width: 400px;
  word-break: break-word;
}
.toast.show { display: block; animation: slideIn 0.25s var(--vm-ease); }
.toast.success { background: var(--vm-success); }
.toast.error { background: var(--vm-error); }
.toast.warn { background: var(--vm-warning); color: #1a1a1a; }
.toast.info { background: #3b82f6; }
@keyframes slideIn {
  from { transform: translateX(20px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ========== Misc ========== */
.empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--vm-text-tertiary);
  font-size: 14px;
}
.loading {
  text-align: center;
  padding: 30px;
  color: var(--vm-text-tertiary);
}
.hidden { display: none !important; }
.muted { color: var(--vm-text-tertiary); font-size: 12px; }

.code-issue-success {
  background: var(--vm-success-bg);
  border: 2px dashed var(--vm-success);
  padding: 16px;
  border-radius: var(--vm-radius-md);
  margin-top: 12px;
}
.code-issue-success .code-big {
  font-size: 22px;
  font-weight: 700;
  color: var(--vm-success);
  letter-spacing: 1px;
  font-family: var(--vm-font-mono);
}
.copy-btn { margin-left: 12px; }
.search-box { width: 280px; }

/* ========== Sub-tabs (merchant detail) ========== */
.sub-tab-bar {
  display: flex; gap: 2px; margin: 8px 0 14px;
  background: var(--vm-surface-low);
  padding: 3px;
  border-radius: var(--vm-radius);
  border: 1px solid var(--vm-border-light);
}
.sub-tab {
  flex: 1; text-align: center;
  padding: 8px 6px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px; font-weight: 500;
  color: var(--vm-text-secondary);
  transition: all var(--vm-transition) var(--vm-ease);
  user-select: none;
}
.sub-tab.active {
  background: var(--vm-surface-lowest);
  color: var(--vm-primary);
  box-shadow: 0 1px 4px rgba(133, 83, 0, 0.1);
  font-weight: 600;
}
.sub-tab:hover:not(.active) { color: var(--vm-primary); }
.md-tab { display: none; }
.md-tab.active { display: block; }
.badge-sm {
  display: inline-block;
  background: var(--vm-primary-container);
  color: var(--vm-on-primary);
  font-size: 10px; font-weight: 600;
  padding: 1px 6px;
  border-radius: var(--vm-radius-full);
  margin-left: 4px;
  vertical-align: middle;
}

/* ========== Pagination ========== */
.pagination {
  display: flex; align-items: center; justify-content: center;
  gap: 6px; margin-top: 16px;
}
.pagination .page-btn {
  padding: 6px 12px;
  background: var(--vm-surface-lowest);
  border: 1px solid var(--vm-border-light);
  border-radius: var(--vm-radius);
  font-size: 12px;
  cursor: pointer;
  color: var(--vm-text-secondary);
  transition: all var(--vm-transition) var(--vm-ease);
}
.pagination .page-btn:hover:not(:disabled) {
  border-color: var(--vm-primary-container);
  color: var(--vm-primary);
  background: rgba(245, 158, 11, 0.05);
}
.pagination .page-btn.active {
  background: var(--vm-primary-container);
  color: var(--vm-on-primary);
  border-color: var(--vm-primary-container);
  font-weight: 600;
}
.pagination .page-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination .page-info { font-size: 12px; color: var(--vm-text-tertiary); margin: 0 8px; }

/* ========== Responsive ========== */
@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .container { padding: 0 16px; margin: 16px auto; }
  .topbar { padding: 12px 16px; }
  .search-box { width: 100%; }
}

/* ─── Logo preview (品牌配置弹窗) ─── */
.logo-preview {
  width: 40px; height: 40px;
  border: 1px dashed var(--vm-border, #d0d0d0);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  background: var(--vm-bg-secondary, #f7f7f8);
  flex-shrink: 0; overflow: hidden;
}
.logo-preview img { max-width: 100%; max-height: 100%; object-fit: contain; }
.logo-preview:empty::before {
  content: '无'; color: var(--vm-text-tertiary, #999); font-size: 11px;
}

/* ─── 看板增强:分段按钮 / ECharts 容器 / 骨架屏 / 环比小字 ─── */

/* 时间范围分段按钮(7天/14天/30天) */
.seg-btns {
  display: inline-flex;
  border: 1px solid var(--vm-border-light, #e0e0e0);
  border-radius: var(--vm-radius, 6px);
  overflow: hidden;
  background: var(--vm-surface-lowest, #fff);
}
.seg-btn {
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 500;
  border: none;
  background: transparent;
  color: var(--vm-text-secondary, #666);
  cursor: pointer;
  transition: all var(--vm-transition, .2s);
  border-right: 1px solid var(--vm-border-light, #e0e0e0);
}
.seg-btn:last-child { border-right: none; }
.seg-btn:hover { background: var(--vm-surface-secondary, #f5f5f6); color: var(--vm-text, #222); }
.seg-btn.active {
  background: var(--vm-primary, #c7902f);
  color: #fff;
}

/* ECharts 图表容器(强制最小高度,避免高度 0 渲染异常) */
.echart-box {
  width: 100%;
  min-height: 240px;
  height: 240px;
}

/* 骨架屏占位(替代"加载中..."文字) */
.skeleton-box {
  background: linear-gradient(90deg,
    var(--vm-surface-secondary, #f0f0f2) 25%,
    var(--vm-surface-lowest, #fafafa) 50%,
    var(--vm-surface-secondary, #f0f0f2) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.4s ease infinite;
  border-radius: var(--vm-radius, 6px);
}
@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* KPI 卡环比小字(今日较昨日 ↑/↓) */
.kpi-delta {
  font-size: 11px;
  font-weight: 600;
  margin-top: 2px;
  display: inline-block;
}
.kpi-delta.up { color: var(--vm-success, #2d8f5f); }
.kpi-delta.down { color: var(--vm-danger, #dc2626); }
.kpi-delta.flat { color: var(--vm-text-tertiary, #999); }

/* KPI 卡可点击态(下钻跳转用) */
.kpi-card.clickable {
  cursor: pointer;
  transition: transform var(--vm-transition, .2s), box-shadow var(--vm-transition, .2s);
}
.kpi-card.clickable:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,.08);
}

/* KPI 数字平滑过渡(避免 30 秒刷新硬切) */
.kpi-value { transition: opacity .3s ease; }