#instagram-topics {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.instagram-topic {
  display: flex;
  width: 100%;
  background: white;
  border: 1px solid #ddd;
  border-radius: 8px;
  overflow: hidden;
}

/* 画像領域：通常は220×220 */
.instagram-topic-images {
  flex: 0 0 220px;
  width: 220px;
  height: 220px;
}

.instagram-topic-images a {
  display: block;
  overflow: hidden;
}

.instagram-topic-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 2枚以上のときだけ 220 + 110 px */
.instagram-topic-images-multi {
  flex-basis: 330px;
  width: 330px;
  display: grid;
  grid-template-columns: 220px 110px;
  grid-template-rows: 110px 110px;
}

.instagram-topic-images-multi .instagram-topic-image-1 {
  grid-column: 1;
  grid-row: 1 / 3;
}

.instagram-topic-images-multi .instagram-topic-image-2 {
  grid-column: 2;
  grid-row: 1;
}

.instagram-topic-images-multi .instagram-topic-image-3 {
  grid-column: 2;
  grid-row: 2;
}

.instagram-topic-body {
  position: relative;
  flex: 1;
  padding: 16px 20px 40px;
  line-height: 1.7em;
}

.instagram-topic-body p {
  margin: 0;
  white-space: pre-wrap;
}

.instagram-link {
  text-align: right;
  margin-top: 10px;
}

.instagram-topic-date {
  position: absolute;
  right: 20px;
  bottom: 16px;
  color: #555;
  font-size: 1em;
  font-weight: bold;
}

@media (max-width: 600px) {
  .instagram-topic {
    flex-direction: column;
  }

  /* 1枚 */
  .instagram-topic-images {
    flex: none;
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
  }

  /* 2枚以上 */
  .instagram-topic-images-multi {
    width: 100%;
    aspect-ratio: 3 / 2;
    grid-template-columns: 2fr 1fr;
    grid-template-rows: 1fr 1fr;
  }
}