:root {
  --yks-green-deep: #125249;
  --yks-green: #1e6b62;
  --yks-mint: #eaf6f2;
  --yks-ink: #193036;
  --yks-line: #d9e3e0;
}

/* 旧コンテンツに含まれる計算ツール導線を、新テーマ上でも確実に読める状態にします。 */
a.yks-button,
.entry-content a.yks-button {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.8rem 1.5rem !important;
  border-radius: 999px !important;
  background: var(--yks-green-deep) !important;
  color: #fff !important;
  font-weight: 700;
  line-height: 1.35;
  text-decoration: none !important;
  box-shadow: 0 5px 14px rgba(18, 82, 73, .18);
}

a.yks-button:hover,
.entry-content a.yks-button:hover {
  background: #0e413a !important;
  color: #fff !important;
  transform: translateY(-1px);
}

/* カテゴリ一覧（投稿本文の連続表示を避けるためのカードレイアウト） */
.yks-archive-main { min-height: 58vh; }
.yks-archive-header {
  padding: clamp(2.5rem, 6vw, 5.5rem) 0;
  background: var(--yks-mint);
}
.yks-archive-container {
  width: min(calc(100% - 2rem), 1120px);
  margin-inline: auto;
}
.yks-breadcrumb { margin-bottom: 1rem; color: #52666c; font-size: .85rem; }
.yks-breadcrumb a { color: inherit; }
.yks-archive-header h1 { margin: 0; color: var(--yks-ink); font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.4; }
.yks-archive-lead { margin: .8rem 0 0; color: #52666c; }
.yks-archive-content { padding: clamp(2.5rem, 6vw, 5rem) 0; }
.yks-card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.3rem; }
.yks-post-card { display: flex; flex-direction: column; min-height: 250px; padding: 1.5rem; border: 1px solid var(--yks-line); border-radius: 18px; background: #fff; box-shadow: 0 4px 14px rgba(25,48,54,.035); transition: transform .2s, box-shadow .2s; }
.yks-post-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(25, 48, 54, .08); }
.yks-post-card__category { margin-bottom: .7rem; color: var(--yks-green-deep); font-size: .78rem; font-weight: 700; }
.yks-post-card__category a { color: inherit; text-decoration: none; }
.yks-post-card__title { margin: 0 0 .75rem; color: var(--yks-ink); font-size: 1.08rem; line-height: 1.55; }
.yks-post-card__title a { color: inherit; text-decoration: none; }
.yks-post-card__title a:hover { color: var(--yks-green); }
.yks-post-card__excerpt { color: #52666c; font-size: .9rem; line-height: 1.7; }
.yks-post-card__excerpt p { margin: 0; }
.yks-post-card__link { display: inline-block; margin-top: auto; padding-top: 1rem; color: var(--yks-green-deep); font-size: .88rem; font-weight: 700; text-decoration: none; }
.yks-pagination { margin-top: 2rem; }
.yks-pagination .nav-links { display: flex; flex-wrap: wrap; justify-content: center; gap: .7rem; }
.yks-pagination a, .yks-pagination .current { display: inline-flex; align-items: center; justify-content: center; min-width: 2.35rem; min-height: 2.35rem; padding: .25rem .6rem; border: 1px solid var(--yks-line); border-radius: 50%; text-decoration: none; }
.yks-pagination .current { color: #fff; border-color: var(--yks-green); background: var(--yks-green); }
.yks-empty { padding: 3rem; border-radius: 18px; background: #fff; text-align: center; }

@media (max-width: 940px) { .yks-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .yks-card-grid { grid-template-columns: 1fr; } }