/* Public Free Suffix · minimal monochrome theme
   约定：不做全宽分割线（不输出 hr、不使用横向分隔边框），区块间只用留白。 */

:root {
  --fg: #111111;
  --muted: #6b7280;
  --border: #d4d4d4;
  --bg-soft: #f5f5f5;
}

* { box-sizing: border-box; }

body {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 16px;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--fg);
  background: #ffffff;
}

a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

h1 { font-size: 30px; line-height: 1.25; letter-spacing: -0.02em; margin: 36px 0 12px; }
h2 { font-size: 21px; letter-spacing: -0.01em; margin: 36px 0 12px; }
h3 { font-size: 16px; margin: 20px 0 8px; }
p, ul, ol { margin: 14px 0; }
small { color: var(--muted); }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.875em;
  background: var(--bg-soft);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}
pre {
  background: var(--bg-soft);
  padding: 14px 16px;
  border-radius: 8px;
  overflow-x: auto;
  line-height: 1.6;
}
pre code { background: none; padding: 0; }

/* ---------- header / nav ---------- */

.site-header { padding: 24px 0 6px; }

.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; text-decoration: none; }
.brand-mark {
  background: var(--fg);
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  padding: 4px 6px;
  border-radius: 6px;
  letter-spacing: 0.5px;
}
.brand:hover .brand-name { text-decoration: underline; text-underline-offset: 3px; }

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 18px;
  margin-top: 4px;
  font-size: 15px;
}
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover { color: var(--fg); text-decoration: underline; text-underline-offset: 3px; }
.site-nav .current { color: var(--fg); font-weight: 600; }

.star-badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 10px;
  font-size: 13.5px;
  color: var(--fg);
  font-variant-numeric: tabular-nums;
}
.star-badge:hover { border-color: var(--fg); color: var(--fg); text-decoration: none; }

/* ---------- hero / buttons / notice ---------- */

.hero h1 { margin-top: 28px; }
.hero .lede { font-size: 17.5px; color: var(--muted); }

.cta-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0; }

.btn {
  display: inline-block;
  padding: 7px 16px;
  border: 1px solid var(--fg);
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
}
.btn:hover { background: var(--bg-soft); text-decoration: none; }
.btn.primary { background: var(--fg); color: #ffffff; }
.btn.primary:hover { background: #000000; }

.notice {
  background: var(--bg-soft);
  border-radius: 10px;
  padding: 14px 18px;
  font-size: 15px;
  margin: 24px 0;
}

/* ---------- suffix chips / cards / steps ---------- */

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.chip {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 12px;
}

.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 16px 0; padding: 0; list-style: none; }
.card { border: 1px solid var(--border); border-radius: 10px; padding: 12px 16px; }
.card h3 { margin: 0 0 4px; font-size: 15.5px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.6; }

.steps { list-style: none; counter-reset: step; padding: 0; margin: 16px 0; }
.steps > li { counter-increment: step; position: relative; padding-left: 42px; margin-bottom: 18px; }
.steps > li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 2px;
  width: 27px;
  height: 27px;
  border: 1px solid var(--fg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
}
.steps > li > p { margin: 0 0 10px; }
.steps > li > pre { margin: 10px 0; }

/* ---------- post list ---------- */

.post-list { list-style: none; padding: 0; margin: 16px 0; }
.post-list li { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 6px 0; }
.post-list a { font-weight: 500; }

/* ---------- footer ---------- */

.site-footer { margin: 60px 0 40px; color: var(--muted); font-size: 14px; }
.site-footer p { margin: 6px 0; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--fg); }

/* ---------- responsive ---------- */

@media (max-width: 560px) {
  h1 { font-size: 26px; }
  .cards { grid-template-columns: 1fr; }
  .post-list li { flex-direction: column; gap: 2px; }
}