.fabric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin: 40px auto;
  max-width: 1200px;
  padding: 0 20px;
}
.fabric-item {
  border: 1px solid #ddd;
  border-radius: 8px;
  background: #fff;
  text-align: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  padding: 16px;
}
.fabric-item h2 {
  font-size: 1.3em;
  margin-bottom: 10px;
  color: #004400;
}
.fabric-previews {
  display: flex;
  justify-content: center;
}

.fabric-previews img {
  width: 100%;           /* 枠いっぱいに表示 */
  max-width: 320px;      /* これ以上は大きくならない */
  height: auto;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}
.fabric-item a {
  text-decoration: none;
  color: inherit;
}