body {
  font-family: sans-serif;
  max-width: 960px;
  margin: auto;
  padding: 20px;
  line-height: 1.8;
  color: #333;
  background-color: #fff;
}

h1 {
  font-size: 2em;
  border-bottom: 2px solid #ccc;
  padding-bottom: 10px;
}

/* スライダー */
.slider {
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 800px;
  margin: 20px auto;
  border-radius: 8px;
}

.slides {
  display: flex;
  transition: transform 0.5s ease;
  width: 100%;
}

.slides img {
  width: 100%;
  flex-shrink: 0;
  border-radius: 8px;
}

.prev,
.next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.5);
  color: #fff;
  border: none;
  font-size: 2em;
  padding: 10px;
  cursor: pointer;
  z-index: 10;
}

.prev { left: 10px; }
.next { right: 10px; }

.description {
  margin-top: 20px;
}

.description ul {
  padding-left: 20px;
  list-style-type: disc;
}

.download {
  margin-top: 30px;
  padding: 20px;
  background: #f8f9fa;
  border: 1px solid #ccc;
  border-radius: 8px;
}

.download a {
  display: inline-block;
  margin-top: 10px;
  padding: 12px 20px;
  background: #007bff;
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.3s ease;
}

.download a:hover {
  background: #0056b3;
}

@media (max-width: 600px) {
  body {
    padding: 15px;
  }

  h1 {
    font-size: 1.5em;
  }
}

.site-footer {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #ccc;
  text-align: center;
  font-size: 0.9em;
  color: #666;
}

.site-footer a {
  color: #007bff;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}