:root {
  --bg: #f7f8f8;
  --surface: #ffffff;
  --surface-2: #f3f4f5;
  --border: #e6e6e6;
  --border-strong: #d0d6e0;
  --text: #08090a;
  --text-2: #62666d;
  --text-3: #8a8f98;
  --brand: #5e6ad2;
  --brand-hover: #7170ff;
  --ok: #27a644;
  --warn: #b7791f;
  --danger: #d93025;
  --radius: 8px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 13px;
  line-height: 1.5;
}

/* ---------------- 顶栏 ---------------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 12px;
  height: 52px; padding: 0 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 14px; }
.brand .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brand); }
.spacer { flex: 1; }
.who { color: var(--text-2); }

.select, .seg button, .btn {
  font: inherit; color: var(--text);
  background: var(--surface); border: 1px solid var(--border-strong);
  border-radius: 6px; padding: 5px 10px; cursor: pointer;
}
.select { max-width: 260px; }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 500; }
.btn.primary:hover { background: var(--brand-hover); }
.btn.ghost { background: transparent; }
.btn.ghost:hover { background: var(--surface-2); }

.seg { display: flex; }
.seg button { border-radius: 0; margin-left: -1px; color: var(--text-2); }
.seg button:first-child { border-radius: 6px 0 0 6px; margin-left: 0; }
.seg button:last-child { border-radius: 0 6px 6px 0; }
.seg button.on { background: var(--surface-2); color: var(--text); font-weight: 500; }

/* ---------------- 布局 ---------------- */
main { max-width: 1320px; margin: 0 auto; padding: 20px; display: flex; flex-direction: column; gap: 16px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px;
}
.card .k { color: var(--text-2); font-size: 12px; }
.card .v { font-size: 24px; font-weight: 600; margin-top: 6px; letter-spacing: -0.5px; }
.card .s { color: var(--text-3); font-size: 11px; margin-top: 2px; }
.card.hl .v { color: var(--brand); }

.panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
}
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; gap: 12px; }
.panel-head h3 { margin: 0; font-size: 14px; font-weight: 600; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 900px) { .grid2 { grid-template-columns: 1fr; } }

.legend { color: var(--text-2); font-size: 12px; display: flex; align-items: center; gap: 6px; }
.legend .ln { display: inline-block; width: 14px; height: 2px; margin-left: 8px; }
.legend .ln.pv { background: var(--brand); }
.legend .ln.conv { background: var(--ok); }

/* ---------------- 图表 ---------------- */
.chart { height: 220px; position: relative; }
.chart.empty { display: flex; align-items: center; justify-content: center; color: var(--text-3); }
.chart svg { width: 100%; height: 100%; display: block; }
.chart .axis { stroke: var(--border); stroke-width: 1; }
.chart .label { fill: var(--text-3); font-size: 10px; }

/* ---------------- 表格 ---------------- */
.tbl { width: 100%; border-collapse: collapse; }
.tbl th, .tbl td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--border); }
.tbl th { color: var(--text-2); font-weight: 500; font-size: 12px; background: var(--surface-2); }
.tbl tr:last-child td { border-bottom: 0; }
.tbl tr:hover td { background: var(--surface-2); }
.tbl td.num, .tbl th.num { text-align: right; font-variant-numeric: tabular-nums; }
.tbl .empty-row td { color: var(--text-3); text-align: center; padding: 24px 0; }
.tag { display: inline-block; padding: 1px 7px; border-radius: 999px; font-size: 11px; }
.tag.gold { background: #fdf3e2; color: var(--warn); }
.tag.normal { background: var(--surface-2); color: var(--text-3); }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: 12px; }
.path { max-width: 340px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.tabs { display: flex; }
.tabs button {
  font: inherit; background: transparent; border: 1px solid transparent;
  color: var(--text-2); padding: 5px 12px; border-radius: 6px; cursor: pointer;
}
.tabs button.on { background: var(--surface-2); color: var(--text); border-color: var(--border); font-weight: 500; }
.check { color: var(--text-2); display: flex; align-items: center; gap: 6px; }

/* ---------------- 登录页 ---------------- */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card {
  width: 340px; background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 28px; display: flex; flex-direction: column; gap: 12px;
}
.login-brand { color: var(--brand); font-weight: 600; letter-spacing: 1px; }
.login-card h1 { font-size: 18px; margin: 0; }
.login-card .muted { color: var(--text-3); margin: 0 0 8px; }
.login-card label { display: flex; flex-direction: column; gap: 6px; color: var(--text-2); font-size: 12px; }
.login-card input {
  font: inherit; padding: 8px 10px; border: 1px solid var(--border-strong);
  border-radius: 6px; background: var(--surface); color: var(--text);
}
.login-card input:focus { outline: 2px solid rgba(94, 106, 210, .25); border-color: var(--brand); }
.form-msg { min-height: 18px; font-size: 12px; color: var(--text-3); }
.form-msg.err { color: var(--danger); }

.empty-hint { color: var(--text-3); padding: 16px 0; }

/* ---------------- 布局：侧边栏 + 主区 ---------------- */
.app { display: grid; grid-template-columns: 196px 1fr; min-height: 100vh; }

.side {
  background: var(--surface); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh;
}
.side-brand {
  display: flex; align-items: center; gap: 8px;
  height: 52px; padding: 0 16px; font-weight: 600; font-size: 13px;
  border-bottom: 1px solid var(--border);
}
.side-brand .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brand); }
.nav { padding: 10px 8px; display: flex; flex-direction: column; gap: 2px; overflow-y: auto; }
.nav a {
  display: block; padding: 7px 10px; border-radius: 6px;
  color: var(--text-2); text-decoration: none; font-size: 13px;
}
.nav a:hover { background: var(--surface-2); color: var(--text); }
.nav a.on { background: var(--surface-2); color: var(--text); font-weight: 500; }
.nav a.on::before {
  content: ''; display: inline-block; width: 2px; height: 12px; margin-right: 6px;
  background: var(--brand); vertical-align: -1px; border-radius: 1px;
}
.nav-group { padding: 12px 10px 4px; color: var(--text-3); font-size: 11px; letter-spacing: .4px; }
.side-foot { margin-top: auto; padding: 12px 16px; color: var(--text-3); font-size: 11px;
  border-top: 1px solid var(--border); }

.main { min-width: 0; display: flex; flex-direction: column; }
.main > main { padding: 20px; display: flex; flex-direction: column; gap: 16px; max-width: 1360px; width: 100%; margin: 0 auto; }

@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; }
  .side { position: static; height: auto; flex-direction: row; align-items: center; overflow-x: auto; }
  .side-brand { border: 0; }
  .nav { flex-direction: row; padding: 8px; }
  .nav-group, .side-foot { display: none; }
}

/* ---------------- 工具条 / 分页 / 排序 ---------------- */
.toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.toolbar .grow { flex: 1; }
.input {
  font: inherit; padding: 5px 10px; border: 1px solid var(--border-strong);
  border-radius: 6px; background: var(--surface); color: var(--text); min-width: 200px;
}
.input:focus { outline: 2px solid rgba(94,106,210,.25); border-color: var(--brand); }

.tbl th.sortable { cursor: pointer; user-select: none; white-space: nowrap; }
.tbl th.sortable:hover { color: var(--text); }
.tbl th .arrow { color: var(--brand); font-size: 10px; margin-left: 3px; }

.pager { display: flex; align-items: center; gap: 8px; justify-content: flex-end; padding-top: 10px; color: var(--text-2); }
.pager button { font: inherit; padding: 4px 10px; border: 1px solid var(--border-strong);
  background: var(--surface); border-radius: 6px; cursor: pointer; }
.pager button:disabled { opacity: .45; cursor: default; }

.panel .sub { color: var(--text-3); font-size: 12px; }
.bar { height: 6px; background: var(--brand); border-radius: 3px; min-width: 2px; }
.bar-cell { display: flex; align-items: center; gap: 8px; justify-content: flex-end; }
.bar-wrap { width: 70px; }
.legend-line { display: flex; gap: 12px; flex-wrap: wrap; color: var(--text-2); font-size: 12px; }
.legend-line i { display: inline-block; width: 12px; height: 2px; margin-right: 5px; vertical-align: 3px; }