body {
  margin: 0;
  font-family: sans-serif;
  line-height: 1.6;
  background: #f9f9f9;
}
.hero {
  position: relative;
  height: 60vh;
  overflow: hidden;
}
.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  background: rgba(0, 0, 0, 0.5);
  padding: 1rem 2rem;
  border-radius: 10px;
  text-align: center;
}
main {
  padding: 2rem 1rem;
  max-width: 1000px;
  margin: auto;
}
h2 {
  margin-top: 2rem;
}
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
  gap: 8px;
  padding: 1rem;
  justify-items: center;
}

.gallery img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 0 5px rgba(0,0,0,0.2);
  cursor: pointer;
  transition: transform 0.2s;
}

.gallery img:hover {
  transform: scale(1.05);
}

/* 拡大表示用のオーバーレイ */
.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.8);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

.lightbox-overlay img {
  max-width: 90%;
  max-height: 90%;
  border-radius: 10px;
}

table {
  width: 100%;
  border-collapse: collapse;
}
td {
  padding: 0.5rem;
  border: 1px solid #ccc;
  text-align: center;
}