/* === Article System Tokens === */
:root {
  --article-max-width: 720px;
  --article-block-gap: 2.2rem;
  --article-text-size: 16px;
  --article-line-height: 1.8;
  --article-h2-size: 1.5rem;
  --article-h3-size: 1.25rem;
  --article-radius: 14px;
  --article-bg-soft: #faf7f4;
  --article-border-soft: #eee5dc;
  --ba-radius: var(--article-radius);
  --ba-border: var(--article-border-soft);
  --ba-handle-size: 44px;
  --ba-bar-width: 3px;
}

/* === Article System v1 === */
.article-content {
  max-width: var(--article-max-width);
  margin: 0 auto;
}

.article-block {
  margin-bottom: var(--article-block-gap);
}

.article-text,
.article-text p {
  font-size: var(--article-text-size);
  line-height: var(--article-line-height);
  margin: 0;
}

.article-content h2 {
  font-size: var(--article-h2-size);
  margin: 3rem 0 1rem;
}

.article-content h3 {
  font-size: var(--article-h3-size);
  margin: 2.5rem 0 0.8rem;
}

.article-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--article-radius);
}

.article-image-group img {
  border-radius: var(--article-radius);
}

.article-note {
  background: var(--article-bg-soft);
  border: 1px solid var(--article-border-soft);
  border-radius: var(--article-radius);
  padding: 1.4rem 1.6rem;
  font-size: 0.95em;
}

.article-quote {
  font-size: 1.1em;
  padding-left: 1.2rem;
  border-left: 4px solid var(--article-border-soft);
  opacity: 0.9;
}

.article-steps ol,
.article-steps ul {
  padding-left: 1.4rem;
  line-height: 1.8;
}

.article-beforeafter {
  border-radius: var(--ba-radius);
  overflow: hidden;
  border: 1px solid var(--ba-border);
}

/* --- Card look --- */
.article-card {
  background: #fff;
  border: 1px solid var(--article-border-soft);
  border-radius: var(--article-radius);
  overflow: hidden;
  box-shadow: 0 10px 24px rgba(0,0,0,0.06);
  transition: transform 140ms ease, box-shadow 140ms ease;
}

.article-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(0,0,0,0.09);
}

.article-card__link {
  display: block;
  color: inherit;
  text-decoration: none;
}

/* 圖片固定比例＋裁切 */
.article-card__thumb {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}

/* 文字區內距 */
.article-card__body {
  padding: 1rem 1.1rem 1.2rem;
}

/* 標題與摘要 */
.article-card__title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  line-height: 1.35;
}

.article-card__excerpt {
  margin: 0;
  opacity: 0.85;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* 日期（小字） */
.article-card__meta {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  opacity: 0.7;
}

/* === Article List System === */
.article-list {
  max-width: 1200px;
  margin: 0 auto 4rem;
  padding: 0 1rem;
}

.article-list__header {
  margin-bottom: 2.5rem;
}

.article-list__title {
  margin: 0 0 0.5rem;
}

.article-list__desc {
  opacity: 0.75;
  max-width: 60ch;
}

.article-list__grid {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}

.article-card {
  display: block;
}

.article-card__thumb {
  width: 100%;
  display: block;
  border-radius: var(--article-radius);
  margin-bottom: 0.8rem;
}

.article-card__title {
  margin: 0.3rem 0;
  font-size: 1.05rem;
}

.article-card__excerpt {
  font-size: 0.95rem;
  opacity: 0.85;
}

.article-list--tutorial .article-list__grid {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.article-list--showcase .article-list__grid {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.article-list--showcase .article-card__excerpt {
  display: none;
}

.article-list--journal .article-list__grid {
  grid-template-columns: 1fr;
  gap: 3rem;
}

.article-list--journal .article-card__thumb {
  max-width: 420px;
}

/* === Mobile Fixes (SafeGuard) === */
@media (max-width: 767px) {
  .article-list {
    padding-right: 20px; /* Ensure space from right edge */
    padding-left: 20px;
  }
  
  .article-list__grid {
    gap: 24px !important; /* Force explicit gap between stacked cards */
  }

  /* Prevent sticky borders by ensuring card margin if grid fails */
  .article-card {
    margin-bottom: 0; /* Grid handles this, but reset just in case */
  }
}