/* TrackEasy Developer Docs — 共享样式 */
:root {
  --color-primary: #0018C6;
  --color-primary-hover: #0017b0;
  --color-text: #1a1a1a;
  --color-text-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-canvas: #fafafa;
  --color-code-bg: #f3f4f6;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, "Cascadia Mono", monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-canvas);
  line-height: 1.65;
}

/* ── Header ── */
.header {
  background: white;
  border-bottom: 1px solid var(--color-border);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 16px; }
.brand-logo {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 18px;
  color: var(--color-text); text-decoration: none;
}
.brand-logo-mark {
  width: 36px; height: 36px;
  background: var(--color-primary);
  color: white; border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 16px;
}
.brand-tag {
  border-left: 1px solid #d1d5db;
  padding-left: 16px;
  color: var(--color-text-muted);
  font-size: 15px;
}
.nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.nav a {
  padding: 8px 12px;
  color: #374151; text-decoration: none;
  font-size: 14px; font-weight: 500;
  border-radius: 6px; transition: background 0.15s;
}
.nav a:hover { background: #f3f4f6; }
.nav a.active {
  background: var(--color-primary); color: white;
}

/* ── Article ── */
.article {
  max-width: 900px;
  margin: 32px auto 80px;
  padding: 48px 56px;
  background: white;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}
@media (max-width: 768px) {
  .article { padding: 24px; margin: 16px; }
  .nav { display: none; }
}
h1 {
  font-size: 32px; font-weight: 800;
  margin: 0 0 8px;
  letter-spacing: -0.5px;
}
h2 {
  font-size: 22px; font-weight: 700;
  margin: 40px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}
h3 {
  font-size: 17px; font-weight: 700;
  margin: 28px 0 12px;
  color: var(--color-text);
}
.subtitle {
  color: var(--color-text-muted);
  font-size: 15px;
  margin: 0 0 32px;
}
p { margin: 12px 0; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Code ── */
code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--color-code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  color: #c7254e;
}
pre {
  background: #1e293b;
  color: #e2e8f0;
  padding: 16px 20px;
  border-radius: 8px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.55;
  margin: 16px 0;
}
pre code {
  background: transparent;
  color: inherit;
  padding: 0;
  font-size: 13px;
}

/* ── Tables ── */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
}
th, td {
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  text-align: left;
}
th {
  background: #f9fafb;
  font-weight: 600;
  color: #374151;
}
tbody tr:hover { background: #fafbfc; }

/* ── Callouts ── */
.callout {
  padding: 14px 18px;
  border-radius: 8px;
  margin: 16px 0;
  font-size: 14px;
  border-left: 4px solid;
}
.callout.info {
  background: #eff6ff;
  border-color: #3b82f6;
  color: #1e40af;
}
.callout.warn {
  background: #fef3c7;
  border-color: #f59e0b;
  color: #92400e;
}
.callout.success {
  background: #d1fae5;
  border-color: #10b981;
  color: #065f46;
}

/* ── Footer ── */
.footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
  color: var(--color-text-muted);
  font-size: 13px;
  text-align: center;
  border-top: 1px solid var(--color-border);
}
.footer a { color: var(--color-primary); }