/* ============================================================
   AIGEP · 公开文章详情页排版
   依赖 report.css 的变量体系（--bg/--surface/--border/...）
   ============================================================ */

.article-page {
  max-width: 860px;
  margin: 0 auto;
  padding: 56px 24px 20px;
}

/* ---------- 面包屑 ---------- */
.article-crumb {
  font-size: .82rem; color: var(--muted); margin-bottom: 22px;
}
.article-crumb a { color: var(--brand); font-weight: 600; }

/* ---------- 头部 ---------- */
.article-head { margin-bottom: 30px; }
.article-head h1 {
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  line-height: 1.2; letter-spacing: -.02em; margin: 0 0 14px;
}
.article-summary {
  font-size: 1.05rem; line-height: 1.75; color: var(--text-soft);
  margin: 0 0 18px; padding-left: 14px; border-left: 3px solid var(--brand);
}
.article-meta { display: flex; flex-wrap: wrap; gap: 10px; }
.article-meta .tag {
  font-size: .78rem; padding: 5px 11px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border); color: var(--text-soft);
}

/* ---------- 正文（markdown 渲染） ---------- */
.article-body {
  padding: 36px 40px; border-radius: var(--radius);
  font-size: 1rem; line-height: 1.85; color: var(--text);
  word-wrap: break-word;
}
.article-body h1, .article-body h2, .article-body h3 {
  line-height: 1.35; letter-spacing: -.01em; margin: 1.6em 0 .7em;
}
.article-body h1 { font-size: 1.5rem; }
.article-body h2 { font-size: 1.3rem; padding-bottom: .35em; border-bottom: 1px solid var(--border); }
.article-body h3 { font-size: 1.12rem; }
.article-body h1:first-child, .article-body h2:first-child, .article-body h3:first-child { margin-top: 0; }
.article-body p { margin: 0 0 1em; }
.article-body blockquote {
  margin: 1.2em 0; padding: 12px 18px;
  border-left: 3px solid var(--brand);
  background: var(--surface-2); border-radius: 0 10px 10px 0;
  color: var(--text-soft);
}
.article-body blockquote p { margin: 0; }
.article-body ul { margin: .5em 0 1.2em; padding-left: 1.5em; }
.article-body li { margin-bottom: .35em; }
.article-body code {
  font-family: "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: .88em; padding: 2px 6px; border-radius: 6px;
  background: var(--surface-2); border: 1px solid var(--border);
}
.article-body pre {
  margin: 1.2em 0; padding: 16px 18px; border-radius: 12px;
  background: var(--surface-2); border: 1px solid var(--border);
  overflow-x: auto;
}
.article-body pre code { background: transparent; border: 0; padding: 0; }

/* ---------- 延伸 FAQ ---------- */
.article-faq {
  margin-top: 26px; padding: 28px 30px; border-radius: var(--radius);
}
.article-faq h2 { font-size: 1.15rem; margin: 0 0 16px; }
.article-faq .faq-list { display: flex; flex-direction: column; gap: 10px; }
.article-faq details.faq {
  border: 1px solid var(--border); border-radius: 12px; background: var(--surface);
  overflow: hidden; margin-bottom: 8px;
}
.article-faq details.faq[open] { border-color: var(--brand); }
.article-faq details.faq summary {
  cursor: pointer; padding: 13px 16px; font-weight: 600; list-style: none;
  display: flex; align-items: center; gap: 10px;
}
.article-faq details.faq summary::-webkit-details-marker { display: none; }
.article-faq details.faq summary::before {
  content: 'Q'; font-weight: 800; color: var(--brand); font-size: .8rem;
  width: 22px; height: 22px; border-radius: 6px; background: rgba(99,102,241,.12);
  display: grid; place-items: center; flex: none;
}
.article-faq details.faq .faq-a {
  padding: 0 16px 14px 48px; color: var(--text-soft); line-height: 1.7; font-size: .9rem;
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .article-body { padding: 24px 20px; }
}