/* ============================================================
   article.css — variantguide.store 專屬內容頁樣式（v3 class 規格）
   數值取自該站 css/style-home.css :root 實際定義（非套用共用預設值）：
   --vg-navy:#4A4380 --vg-orange:#E8622C --vg-ink:#1F1D33 --vg-gray:#6B6880
   --vg-gray-light:#8A87A0 --vg-border:#E4E2ED --vg-bg-shell:#F0EEF5 --vg-bg:#FFFFFF
   --vg-sans:'Nunito Sans',sans-serif
   本站無 --space-*/--radius-*/--container 變數，改用固定 px 值比照該站既有頁面手法。
   ============================================================ */

.article-page {
  padding: 32px 0;
}
.article-page .container {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ── Breadcrumb ── */
.breadcrumb {
  font-size: 13px;
  color: var(--vg-gray-light);
  margin-bottom: 20px;
}
.breadcrumb a { color: inherit; text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb-sep { margin: 0 6px; opacity: .6; }

/* ── Header：分類標籤 + 標題 + byline + cover圖 ── */
.article-header {
  margin-bottom: 24px;
}
.card-meta {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--vg-orange);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.article-h1 {
  font-family: var(--vg-sans);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--vg-ink);
  margin-bottom: 12px;
}
.author-byline {
  font-size: 14px;
  color: var(--vg-gray);
  margin-bottom: 20px;
}
.author-sep { margin: 0 6px; opacity: .6; }
.article-hero-img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  border-radius: 8px;
  display: block;
}

/* ── Lead + Body ── */
.article-lead {
  font-size: 17px;
  line-height: 1.8;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--vg-border);
}
.article-body {
  font-family: var(--vg-sans);
  font-size: 17px;
  line-height: 1.9;
  color: var(--vg-ink);
}
.article-body h2 {
  font-family: var(--vg-sans);
  font-size: 24px;
  font-weight: 800;
  margin: 32px 0 16px;
}
.article-body h3 {
  font-size: 19px;
  font-weight: 700;
  margin: 24px 0 12px;
}
.article-body p { margin-bottom: 20px; }
.article-body ul, .article-body ol { margin: 0 0 20px 24px; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 8px; }
.article-body strong { font-weight: 700; }
.article-body a { color: var(--vg-navy); text-decoration: underline; }
.article-body blockquote {
  border-left: 3px solid var(--vg-orange);
  padding-left: 16px;
  color: var(--vg-gray);
  margin: 20px 0;
}
.article-body img {
  max-width: 100%;
  border-radius: 8px;
  margin: 20px 0;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}
.article-body th, .article-body td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--vg-border);
  text-align: left;
}

/* ── Author bio ── */
.author-bio-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin: 32px 0;
  padding: 20px;
  background: #F7F6FB;
  border-radius: 8px;
}
.author-bio-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--vg-bg-shell);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}
.author-bio-name { font-weight: 700; color: var(--vg-ink); }
.author-bio-title { font-size: 13px; color: var(--vg-orange); font-weight: 700; margin: 2px 0 8px; }
.author-bio-text { font-size: 14px; color: var(--vg-gray); line-height: 1.7; }

/* ── FAQ ── */
.faq-section { margin: 32px 0; }
.faq-section-title {
  font-family: var(--vg-sans);
  font-size: 22px;
  font-weight: 800;
  color: var(--vg-ink);
  margin-bottom: 20px;
}
.faq-item { margin-bottom: 16px; }
.faq-q { font-weight: 700; color: var(--vg-ink); margin-bottom: 8px; }
.faq-a { color: var(--vg-gray); }

/* ── CTA ── */
.cta-banner {
  margin: 32px 0;
  padding: 24px 20px;
  background: var(--vg-navy);
  color: #fff;
  text-align: center;
  border-radius: 8px;
}
.cta-banner h2 { font-family: var(--vg-sans); color: #fff; margin-bottom: 12px; }
.cta-banner p { color: rgba(255,255,255,0.75); margin-bottom: 16px; }

/* ── Blog list cards（blog.html 列表頁專用） ── */
.articles-section { padding: 40px 0; }
.articles-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media(min-width:768px){ .articles-grid{grid-template-columns:repeat(2,1fr)} }
@media(min-width:1024px){ .articles-grid{grid-template-columns:repeat(3,1fr)} }
.article-card {
  background: #fff;
  border: 1px solid var(--vg-border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(31,29,51,0.08);
  transition: box-shadow .2s;
}
.article-card:hover { box-shadow: 0 6px 20px rgba(31,29,51,0.12); }
.article-thumb { height: 180px; overflow: hidden; }
.article-thumb img { width: 100%; height: 100%; object-fit: cover; }
.article-card .article-body { padding: 16px 20px; font-family: inherit; }
.article-meta { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-size: 12px; }
.article-cat { background: var(--vg-bg-shell); color: var(--vg-navy); font-weight: 700; padding: 2px 8px; border-radius: 999px; }
.article-date { color: var(--vg-gray); }
.article-card h2 { font-family: var(--vg-sans); font-size: 17px; font-weight: 800; line-height: 1.4; margin-bottom: 8px; color: var(--vg-ink); }
.article-excerpt { font-size: 13px; color: var(--vg-gray); line-height: 1.6; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.article-link { font-size: 13px; font-weight: 700; color: var(--vg-navy); text-decoration: none; }
.article-link:hover { text-decoration: underline; }