/* ============================================================
   TERO CMS — 新增元件樣式
   沿用 variables.css 的設計代幣，不覆寫任何既有 class
   ============================================================ */

/* ── Banner 輪播 ───────────────────────────────────────── */
.banner-section { padding-top: var(--space-6); padding-bottom: var(--space-6); }

.banner-slider {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: var(--color-bg-card);
}

.banner-track { position: relative; }

.banner-slide {
  display: none;
  position: relative;
  animation: bannerFade .55s ease;
}
.banner-slide.is-active { display: block; }

@keyframes bannerFade { from { opacity: 0; } to { opacity: 1; } }

.banner-slide img,
.banner-slide picture { display: block; width: 100%; height: auto; }

.banner-slide::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(5,7,11,0) 35%, rgba(5,7,11,.86) 100%);
  pointer-events: none;
}

.banner-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 2;
  padding: clamp(1.2rem, 4vw, 2.6rem);
}
.banner-caption h2 {
  margin: 0 0 .5rem;
  font-size: clamp(1.3rem, 3.4vw, 2.1rem);
  line-height: var(--lh-tight);
  color: var(--color-text);
}
.banner-caption p {
  margin: 0;
  max-width: 60ch;
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  line-height: var(--lh-base);
}
.banner-caption .cta-row { margin-top: 1rem; }

.banner-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  z-index: 3;
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: rgba(5,7,11,.55);
  color: var(--color-text);
  font-size: 1.4rem; line-height: 1;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.banner-nav:hover { background: rgba(0,229,255,.2); border-color: var(--color-border-strong); }
.banner-prev { left: 14px; }
.banner-next { right: 14px; }

.banner-dots {
  position: absolute; left: 0; right: 0; bottom: 10px;
  z-index: 3;
  display: flex; justify-content: center; gap: 8px;
}
.banner-dot {
  width: 9px; height: 9px; padding: 0;
  border: none; border-radius: var(--radius-pill);
  background: rgba(255,255,255,.35);
  cursor: pointer;
  transition: background var(--transition-fast), width var(--transition-fast);
}
.banner-dot.is-active { width: 24px; background: var(--color-primary); }

@media (max-width: 640px) {
  .banner-nav { display: none; }
  .banner-caption p { display: none; }
}

/* ── Quick Answer（GEO 引用段） ─────────────────────────── */
.quick-answer {
  border-left: 3px solid var(--color-primary);
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  padding: 1.4rem 1.6rem;
}
.quick-answer .section-eyebrow { margin: 0 0 .5rem; }
.quick-answer p { margin: 0; line-height: 1.95; color: var(--color-text); }

/* ── 網誌列表 ──────────────────────────────────────────── */
.blog-filter {
  display: flex; gap: .6rem; flex-wrap: wrap;
  margin-bottom: 1.6rem;
}
.blog-filter input[type="search"] {
  flex: 1 1 260px;
  padding: .8rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-soft);
  color: var(--color-text);
  font: inherit;
}
.blog-filter input[type="search"]:focus {
  outline: none;
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-glow);
}

.blog-cats {
  display: flex; flex-wrap: wrap; gap: .5rem;
  margin-bottom: 2rem;
}
.blog-cats a {
  padding: .42rem .95rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: all var(--transition-fast);
}
.blog-cats a:hover,
.blog-cats a.is-active {
  color: var(--color-bg);
  background: var(--gradient-cta);
  border-color: transparent;
}

.list-meta { color: var(--color-text-dim); font-size: var(--fs-sm); margin-bottom: 1.2rem; }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-5);
}

.blog-card {
  display: flex; flex-direction: column;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}
.blog-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-card);
}
.blog-card-media { display: block; aspect-ratio: 16/10; overflow: hidden; }
.blog-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-base); }
.blog-card:hover .blog-card-media img { transform: scale(1.04); }

.blog-card-body { padding: 1.2rem 1.3rem 1.4rem; display: flex; flex-direction: column; gap: .6rem; flex: 1; }
.blog-card-cat {
  align-self: flex-start;
  font-size: var(--fs-xs);
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: .04em;
}
.blog-card h2, .blog-card h3 { margin: 0; font-size: var(--fs-md); line-height: 1.5; }
.blog-card h2 a, .blog-card h3 a { color: var(--color-text); text-decoration: none; }
.blog-card h2 a:hover, .blog-card h3 a:hover { color: var(--color-primary); }
.blog-card p { margin: 0; color: var(--color-text-muted); font-size: var(--fs-sm); line-height: 1.8; }
.blog-card-meta { color: var(--color-text-dim); font-size: var(--fs-xs); }
.blog-card-more { margin-top: auto; color: var(--color-primary); text-decoration: none; font-size: var(--fs-sm); }

/* ── 分頁 ──────────────────────────────────────────────── */
.pagination {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: .4rem; margin-top: var(--space-7);
}
.page-link {
  min-width: 40px;
  padding: .5rem .85rem;
  display: inline-grid; place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--fs-sm);
  transition: all var(--transition-fast);
}
.page-link:hover { border-color: var(--color-border-strong); color: var(--color-text); }
.page-link.is-current { background: var(--gradient-cta); color: var(--color-bg); border-color: transparent; font-weight: var(--fw-bold); }
.page-link.is-disabled { opacity: .35; pointer-events: none; }
.page-ellipsis { padding: .5rem .3rem; color: var(--color-text-dim); }

/* ── 文章內頁 ──────────────────────────────────────────── */
.post-meta { color: var(--color-text-dim); font-size: var(--fs-sm); }

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: var(--space-7);
  align-items: start;
}
@media (max-width: 960px) { .article-layout { grid-template-columns: 1fr; } }

.post-cover { margin: 0 0 1.8rem; }
.post-cover img { width: 100%; height: auto; border-radius: var(--radius-md); }

.post-content h2 { margin-top: 2.4rem; font-size: var(--fs-xl); }
.post-content h3 { margin-top: 1.8rem; font-size: var(--fs-lg); }
.post-content ul, .post-content ol { line-height: 1.95; padding-left: 1.3rem; }
.post-content li { margin-top: .45rem; }
.post-content img { max-width: 100%; height: auto; border-radius: var(--radius-md); }

.post-tags { margin-top: 2rem; font-size: var(--fs-sm); color: var(--color-text-dim); }
.post-tags a { color: var(--color-primary); text-decoration: none; margin-right: .6rem; }

.post-cta {
  margin-top: 2.6rem;
  padding: 1.6rem 1.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--gradient-card);
}
.post-cta h3 { margin: 0 0 .6rem; font-size: var(--fs-lg); }
.post-cta p { margin: 0 0 1rem; color: var(--color-text-muted); }

.post-aside { position: sticky; top: calc(var(--header-height) + 20px); display: grid; gap: var(--space-5); }
.aside-box {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.2rem 1.3rem;
  background: var(--color-bg-card);
}
.aside-box h3 { margin: 0 0 .8rem; font-size: var(--fs-base); }
.aside-box ul { margin: 0; padding: 0; list-style: none; display: grid; gap: .55rem; }
.aside-box a { color: var(--color-text-muted); text-decoration: none; font-size: var(--fs-sm); line-height: 1.6; }
.aside-box a:hover { color: var(--color-primary); }
@media (max-width: 960px) { .post-aside { position: static; } }

/* ── 搜尋結果 ──────────────────────────────────────────── */
.search-results { display: grid; gap: var(--space-5); }
.search-item {
  padding: 1.2rem 1.4rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
}
.search-item h2 { margin: .2rem 0 .5rem; font-size: var(--fs-md); }
.search-item h2 a { color: var(--color-text); text-decoration: none; }
.search-item h2 a:hover { color: var(--color-primary); }
.search-item p { margin: 0; color: var(--color-text-muted); font-size: var(--fs-sm); line-height: 1.8; }
.search-kind { margin: 0; font-size: var(--fs-xs); color: var(--color-primary); letter-spacing: .06em; }
.search-url { margin-top: .5rem !important; color: var(--color-text-dim) !important; font-size: var(--fs-xs) !important; word-break: break-all; }
.search-form { max-width: 520px; }

/* ── 頁尾社交連結 ──────────────────────────────────────── */
.footer-social { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1rem; }
.footer-social a { font-size: var(--fs-sm); color: var(--color-text-muted); text-decoration: none; }
.footer-social a:hover { color: var(--color-primary); }