/* 商家控制台 · 使用指南静态页（iframe 内嵌） */
:root {
  --g-bg: #f5f6f8;
  --g-surface: #fff;
  --g-text: #373d41;
  --g-muted: #73777a;
  --g-title: #11181c;
  --g-link: #0064c8;
  --g-border: #e5e6eb;
  --g-th: #f7f8fa;
  --g-callout: #e8f3ff;
  --g-callout-border: #6aa1ff;
  --g-warn: #fff7e8;
  --g-warn-border: #ffb65d;
  --g-nav-w: 200px;
}

* { box-sizing: border-box; }

body.guide-body {
  margin: 0;
  background: var(--g-bg);
  color: var(--g-text);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.7;
}

.guide-top {
  background: var(--g-surface);
  border-bottom: 1px solid var(--g-border);
  padding: 1rem 1.25rem 0.85rem;
}

.guide-brand {
  margin: 0 0 0.25rem;
  font-size: 12px;
  color: var(--g-muted);
}

.guide-top h1 {
  margin: 0 0 0.35rem;
  font-size: 22px;
  font-weight: 600;
  color: var(--g-title);
}

.guide-meta {
  margin: 0;
  font-size: 12px;
  color: var(--g-muted);
}

.guide-shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1.15rem 2.5rem;
  display: grid;
  grid-template-columns: var(--g-nav-w) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.guide-nav {
  position: sticky;
  top: 0.6rem;
  background: var(--g-surface);
  border: 1px solid var(--g-border);
  border-radius: 4px;
  padding: 0.75rem 0.65rem;
  font-size: 13px;
}

.guide-nav-title {
  margin: 0 0 0.45rem;
  font-size: 12px;
  color: var(--g-muted);
  font-weight: 600;
}

.guide-nav a {
  display: block;
  padding: 0.28rem 0.4rem;
  color: var(--g-link);
  text-decoration: none;
  border-radius: 3px;
}

.guide-nav a:hover { background: var(--g-th); }
.guide-nav a.current {
  background: var(--g-callout);
  color: var(--g-title);
  font-weight: 600;
}

.guide-main {
  background: var(--g-surface);
  border: 1px solid var(--g-border);
  border-radius: 4px;
  padding: 1.1rem 1.25rem 1.5rem;
  min-height: 320px;
}

.guide-main h2 {
  margin: 1.35rem 0 0.55rem;
  font-size: 17px;
  color: var(--g-title);
  border-bottom: 1px solid var(--g-border);
  padding-bottom: 0.35rem;
}

.guide-main h2:first-child { margin-top: 0; }

.guide-main h3 {
  margin: 1rem 0 0.4rem;
  font-size: 14px;
  color: var(--g-title);
}

.guide-main p { margin: 0.45rem 0; }
.guide-main ul, .guide-main ol { margin: 0.4rem 0; padding-left: 1.35rem; }
.guide-main li { margin: 0.2rem 0; }

.guide-main a { color: var(--g-link); }

.guide-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.6rem 0 1rem;
  font-size: 13px;
}

.guide-table th,
.guide-table td {
  border: 1px solid var(--g-border);
  padding: 0.45rem 0.55rem;
  text-align: left;
  vertical-align: top;
}

.guide-table th { background: var(--g-th); font-weight: 600; }

.guide-callout {
  margin: 0.85rem 0;
  padding: 0.7rem 0.85rem;
  background: var(--g-callout);
  border-left: 3px solid var(--g-callout-border);
  border-radius: 0 4px 4px 0;
  font-size: 13px;
}

.guide-callout.warn {
  background: var(--g-warn);
  border-left-color: var(--g-warn-border);
}

.guide-muted { color: var(--g-muted); font-size: 12px; }

.guide-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  text-align: center;
  color: var(--g-muted);
}

.guide-empty strong {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 16px;
  color: var(--g-title);
}

.guide-footer {
  margin-top: 1.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--g-border);
  font-size: 12px;
  color: var(--g-muted);
}

@media (max-width: 760px) {
  .guide-shell { grid-template-columns: 1fr; }
  .guide-nav { position: static; }
}