:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --border: #e4e7ec;
  --border-strong: #d0d5dd;
  --text: #1d2129;
  --text-2: #4e5969;
  --muted: #86909c;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-soft: #eff4ff;
  --danger: #d92d20;
  --danger-soft: #fef3f2;
  --success: #067647;
  --success-soft: #ecfdf3;
  --warn: #b54708;
  --warn-soft: #fffaeb;
  --radius: 6px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 13px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- 布局 ---------- */
.app { display: flex; flex-direction: column; height: 100vh; }

.topbar {
  height: 52px;
  flex: 0 0 52px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .2px;
}

.brand-mark {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
}

.topbar-right { display: flex; align-items: center; gap: 14px; }

.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-2);
}
.user-chip::before {
  content: "";
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--primary-soft);
  border: 1px solid #d5e2ff;
}

/* ---------- 数据范围切换 ---------- */
.scope-switch { position: relative; }

.scope-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 11px;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  background: #fff;
  color: var(--text);
  font-size: 12.5px;
  cursor: pointer;
  max-width: 280px;
}
.scope-trigger:hover { background: #f8f9fb; border-color: #b9c6d8; }

.scope-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 230px;
}
.scope-caret { color: var(--muted); font-size: 10px; }

.scope-panel {
  display: none;
  position: absolute;
  right: 0;
  top: 36px;
  width: 308px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(16, 24, 40, .14);
  z-index: 60;
  overflow: hidden;
}
.scope-panel.open { display: block; }

.scope-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.scope-panel-title { font-size: 12.5px; font-weight: 600; }

.scope-list { max-height: 280px; overflow-y: auto; padding: 6px 0; }

.scope-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  cursor: pointer;
  font-size: 12.5px;
}
.scope-item:hover { background: #fafbfc; }
.scope-item input { margin: 0; }
.scope-item-name { flex: 1; }

.scope-panel-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--border);
}

.body { display: flex; flex: 1; overflow: hidden; }

.sidebar {
  width: 196px;
  flex: 0 0 196px;
  background: #fff;
  border-right: 1px solid var(--border);
  padding: 12px 10px;
  overflow-y: auto;
}

.nav-group { margin-bottom: 14px; }
.nav-group-title {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .6px;
  padding: 6px 10px 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: var(--radius);
  color: var(--text-2);
  margin-bottom: 2px;
  cursor: pointer;
}
.nav-item:hover { background: #f5f6f8; text-decoration: none; color: var(--text); }
.nav-item.active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.nav-dot { width: 5px; height: 5px; border-radius: 50%; background: currentColor; opacity: .45; }

.main { flex: 1; overflow: auto; padding: 18px 20px 40px; }

.page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 14px;
  gap: 16px;
}
.page-title { font-size: 18px; font-weight: 600; margin: 0 0 2px; }
.page-desc { color: var(--muted); font-size: 12px; }

/* ---------- 卡片 ---------- */
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 14px;
}
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  gap: 10px;
}
.card-title { font-weight: 600; font-size: 13px; }
.card-body { padding: 14px; }
.card-body.tight { padding: 0; }

.grid { display: grid; gap: 14px; }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.stat { padding: 14px 16px; }
.stat-label { color: var(--muted); font-size: 12px; }
.stat-value { font-size: 24px; font-weight: 600; letter-spacing: -.4px; margin-top: 2px; }
.stat-sub { color: var(--muted); font-size: 11px; }

/* ---------- 控件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  height: 30px;
  padding: 0 12px;
  border: 1px solid var(--border-strong);
  background: #fff;
  color: var(--text);
  border-radius: var(--radius);
  font-size: 12.5px;
  cursor: pointer;
  white-space: nowrap;
  transition: background .12s, border-color .12s, color .12s;
}
.btn:hover { background: #f8f9fb; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-danger { color: var(--danger); border-color: #f3c3bf; background: #fff; }
.btn-danger:hover { background: var(--danger-soft); }
.btn-ghost { border-color: transparent; background: transparent; color: var(--primary); }
.btn-ghost:hover { background: var(--primary-soft); }
.btn-sm { height: 24px; padding: 0 8px; font-size: 12px; }

.input, .select, textarea {
  height: 30px;
  padding: 0 9px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  font-size: 12.5px;
  font-family: inherit;
  outline: none;
  min-width: 0;
}
textarea { height: auto; padding: 8px 9px; resize: vertical; line-height: 1.6; }
.input:focus, .select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}
.select.slim { height: 28px; }
.input.slim { height: 28px; }

.field { display: flex; flex-direction: column; gap: 4px; }
.field > label { font-size: 12px; color: var(--text-2); }
.row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.row.tight { gap: 6px; }
.spacer { flex: 1; }

/* ---------- 表格 ---------- */
.table-wrap { overflow: auto; max-height: 62vh; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 12.5px; }
table.tbl th, table.tbl td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
}
table.tbl thead th {
  background: #fafbfc;
  color: var(--text-2);
  font-weight: 600;
  position: sticky;
  top: 0;
  z-index: 2;
}
table.tbl tbody tr:hover { background: #fafbfc; }
table.tbl td.num { text-align: right; font-variant-numeric: tabular-nums; }
table.tbl th.num { text-align: right; }

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  height: 20px;
  padding: 0 7px;
  border-radius: 10px;
  font-size: 11.5px;
  background: #f2f3f5;
  color: var(--text-2);
  border: 1px solid transparent;
}
.tag-success { background: var(--success-soft); color: var(--success); border-color: #abefc6; }
.tag-warn { background: var(--warn-soft); color: var(--warn); border-color: #fedf89; }
.tag-danger { background: var(--danger-soft); color: var(--danger); border-color: #fecdca; }
.tag-info { background: var(--primary-soft); color: var(--primary); border-color: #d1e0ff; }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(16, 24, 40, .45);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 60px 16px;
  z-index: 100;
  overflow: auto;
}
.modal-mask.open { display: flex; }
.modal {
  background: #fff;
  border-radius: 8px;
  width: 560px;
  max-width: 100%;
  box-shadow: 0 12px 36px rgba(16, 24, 40, .18);
}
.modal.wide { width: 780px; }
.modal-head {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal-body { padding: 16px; }
.modal-foot {
  padding: 11px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
.modal-close { cursor: pointer; color: var(--muted); font-size: 16px; line-height: 1; }

/* ---------- 提示 ---------- */
.toast-host { position: fixed; top: 16px; left: 50%; transform: translateX(-50%); z-index: 300; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: #1d2129;
  color: #fff;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 12.5px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .18);
  animation: toastIn .16s ease-out;
  max-width: 520px;
}
.toast.error { background: #b42318; }
.toast.success { background: #067647; }
@keyframes toastIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

/* ---------- 空态 / 加载 ---------- */
.empty {
  text-align: center;
  color: var(--muted);
  padding: 40px 16px;
  font-size: 12.5px;
}
.empty strong { display: block; color: var(--text-2); font-size: 13px; margin-bottom: 4px; font-weight: 600; }
.loading-inline { color: var(--muted); font-size: 12px; }

/* ---------- 分析页 ---------- */
.builder { display: flex; flex-direction: column; gap: 10px; }
.builder-row {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 8px 10px;
  background: #fafbfc;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  flex-wrap: wrap;
}
.metric-index {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 11px;
  display: inline-flex; align-items: center; justify-content: center;
  flex: 0 0 20px;
}
.cond-row { display: flex; gap: 6px; align-items: center; margin-top: 6px; flex-wrap: wrap; }
.cond-box { padding: 8px 10px; border-left: 2px solid #d5e2ff; margin-left: 28px; }

.chart-box { height: 340px; width: 100%; }

.metric-tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.metric-tab {
  padding: 3px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
  cursor: pointer;
  font-size: 12px;
  color: var(--text-2);
}
.metric-tab.active { background: var(--primary-soft); border-color: #d1e0ff; color: var(--primary); }

/* ---------- 登录 ---------- */
/* 背景全部由渐变与网格绘制，不依赖任何位图资源 */
.login-wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 20px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(820px 420px at 50% -6%, rgba(255, 255, 255, .82) 0%, rgba(255, 255, 255, 0) 72%),
    radial-gradient(640px 400px at 100% 104%, rgba(150, 190, 240, .26) 0%, rgba(150, 190, 240, 0) 70%),
    radial-gradient(520px 360px at 0% 96%, rgba(150, 190, 240, .20) 0%, rgba(150, 190, 240, 0) 70%),
    linear-gradient(180deg, #e9f2fe 0%, #e4eefc 55%, #dee9f9 100%);
}

/* 网格：细线 + 交叉点，边缘用遮罩淡出 */
.login-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(122, 162, 222, .20) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(122, 162, 222, .20) 1px, transparent 1px),
    radial-gradient(rgba(92, 141, 214, .30) 1.4px, transparent 1.4px);
  background-size: 56px 56px, 56px 56px, 56px 56px;
  background-position: 0 0, 0 0, 28px 28px;
  -webkit-mask-image: radial-gradient(circle at 50% 46%, #000 0%, rgba(0, 0, 0, .55) 46%, transparent 76%);
  mask-image: radial-gradient(circle at 50% 46%, #000 0%, rgba(0, 0, 0, .55) 46%, transparent 76%);
  pointer-events: none;
}

.login-brand {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 26px;
}

.login-brand-mark {
  width: 42px;
  height: 39px;
  border-radius: 11px;
  background: linear-gradient(135deg, #5c9dff 0%, #2f6bff 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 8px 18px rgba(47, 107, 255, .30);
}

.login-brand-text {
  font-size: 21px;
  font-weight: 600;
  letter-spacing: .6px;
  color: #1c3f78;
}

.login-card {
  position: relative;
  z-index: 1;
  width: 362px;
  max-width: 100%;
  background: #fff;
  border-radius: 8px;
  border: 1px solid rgba(210, 226, 246, .9);
  box-shadow:
    0 12px 32px rgba(31, 74, 140, .10),
    0 2px 6px rgba(31, 74, 140, .05);
  padding: 26px 26px 24px;
}

.login-card-title {
  font-size: 17px;
  font-weight: 600;
  color: #1d2129;
  margin-bottom: 18px;
}

.login-field { position: relative; margin-bottom: 14px; }

.login-field .field-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  color: #a9b6c7;
  pointer-events: none;
}

.login-field .input {
  width: 100%;
  height: 40px;
  padding: 0 12px 0 38px;
  border: 1px solid #dfe7f1;
  border-radius: 6px;
  background: #fff;
  font-size: 13px;
  color: var(--text);
}

.login-field .input::placeholder { color: #aab5c4; }

.login-field .input:focus {
  border-color: #2f6bff;
  box-shadow: 0 0 0 3px rgba(47, 107, 255, .12);
}

.login-submit {
  width: 100%;
  height: 42px;
  margin-top: 16px;
  border: none;
  border-radius: 6px;
  background: #2f6bff;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 6px;
  text-indent: 6px;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(47, 107, 255, .26);
  transition: background .15s, box-shadow .15s, transform .05s;
}

.login-submit:hover { background: #1f5af0; box-shadow: 0 10px 22px rgba(47, 107, 255, .32); }
.login-submit:active { transform: translateY(1px); }

.login-error {
  background: var(--danger-soft);
  color: var(--danger);
  border: 1px solid #fecdca;
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 12px;
  margin-bottom: 14px;
}

/* ---------- 分页 ---------- */
.pager { display: flex; align-items: center; justify-content: flex-end; gap: 8px; padding: 10px 14px; border-top: 1px solid var(--border); color: var(--text-2); }
.pager button { height: 26px; padding: 0 9px; }

/* ---------- 键值列表 ---------- */
.kv { display: grid; grid-template-columns: 128px 1fr; row-gap: 8px; font-size: 12.5px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }

pre.code {
  background: #0f172a;
  color: #d6e2f5;
  border-radius: var(--radius);
  padding: 12px;
  overflow: auto;
  font-size: 12px;
  line-height: 1.65;
  max-height: 420px;
  font-family: "JetBrains Mono", Consolas, "Courier New", monospace;
}

.hint { color: var(--muted); font-size: 11.5px; }
.divider { height: 1px; background: var(--border); margin: 12px 0; }
.mono { font-family: Consolas, "Courier New", monospace; }

@media (max-width: 1080px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sidebar { width: 164px; flex-basis: 164px; }
}