/* SpendTalk 共享基础样式 */
:root {
  --fg: #1a1a2e;
  --fg-muted: #5b5b7a;
  --bg: #ffffff;
  --bg-soft: #f4f4fb;
  --accent: #4f46e5;
  --border: #e2e2f0;
  --max-width: 760px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  color: var(--fg);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC",
    "PingFang SC", "Hiragino Sans GB", "Microsoft JhengHei", "Microsoft YaHei",
    Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 20px 80px;
}

header.doc-header {
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

header.doc-header .app {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 8px;
}

h1 { font-size: 26px; line-height: 1.35; margin: 0 0 8px; }
h2 {
  font-size: 19px;
  margin: 40px 0 12px;
  padding-top: 4px;
}
h3 { font-size: 16px; margin: 24px 0 8px; }

.meta { color: var(--fg-muted); font-size: 14px; margin: 4px 0 0; }

p, li { color: var(--fg); }
ul, ol { padding-left: 22px; }
li { margin: 6px 0; }

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

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14.5px;
}
th, td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
th { background: var(--bg-soft); font-weight: 600; }

.note {
  background: var(--bg-soft);
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  border-radius: 6px;
  margin: 16px 0;
  font-size: 14.5px;
  color: var(--fg-muted);
}

.placeholder {
  background: #fff3cd;
  border: 1px dashed #d9a400;
  border-radius: 4px;
  padding: 0 4px;
  color: #7a5b00;
  font-size: 0.92em;
}

footer.doc-footer {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 13px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e4e4f0;
    --fg-muted: #9898b8;
    --bg: #13131f;
    --bg-soft: #1e1e30;
    --border: #2e2e48;
  }
}