/* ========== 一覧（archive-column.php） ========== */

.column-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  margin: 30px auto;
  max-width: 980px;
  padding: 0 20px;
}

.column-item {
  flex: 1 1 calc(33.333% - 20px);
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 6px;
  overflow: hidden;
  text-decoration: none;
  color: #333;
  transition: box-shadow 0.3s ease;
}

.column-item:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.column-item img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.column-text {
  padding: 15px;
}

.column-title {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 10px;
}

.column-excerpt {
  font-size: 14px;
  color: #666;
}

/* ========== 詳細（single-column.php） ========== */

.column-detail-box {
  max-width: 960px;
  margin: 40px auto;
  padding: 0 20px;
}

.column-detail-title {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 20px;
  border-left: 5px solid #0073aa;
  padding-left: 10px;
}

.column-detail-content {
  font-size: 16px;
  line-height: 1.8;
  color: #333;
}

@media screen and (max-width: 767px) {
  .column-item {
    flex: 1 1 100%;
  }
}