* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Zen Maru Gothic", sans-serif;
  font-weight: 500;
  font-style: normal;
  line-height: 1.6;
  background-color: #f4f4f4;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
  padding: 10px;
}

header {
  background: #0077cc;
  color: white;
  padding: 20px 0;
  text-align: center;
}

p {
  padding: 5px;
}
.btn {
  display: inline-block;
  background: white;
  color: #0077cc;
  padding: 10px 20px;
  margin-top: 20px;
  text-decoration: none;
  border-radius: 5px;
}

.features {
  background: white;
  padding: 40px 0;
}

.feature-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.feature-item {
  flex: 1 1 30%;
  background: #eaeaea;
  padding: 20px;
  border-radius: 5px;
}

footer {
  background: #333;
  color: white;
  text-align: center;
  padding: 10px 0;
}

button {
  margin: 10px;
  padding: 10px 20px;
  font-size: 16px;
  border-radius: 8px; /* ← 角を丸くする */
  border: none;
  background-color: #99cc00;
  color: white;
  cursor: pointer;
  transition: background-color 0.3s;
}


#modalOverlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.7);
  z-index: 1000;
}

#modalContent {
  background: #fff;
  width: 90%;
  max-width: 640px;
  margin: 100px auto;
  padding: 20px;
  border-radius: 8px;
  position: relative;
}

#closeModal {
  position: absolute;
  top: 10px;
  right: 15px;
  font-size: 40px;
  font-weight: bold;
  color: skyblue;
  cursor: pointer;
}

video {
  width: 100%;
  height: auto;
  border-radius: 5px;
}

.sp {
  display: none;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  h1 {
    font-size: 99%;
  }
  .feature-item {
    flex: 1 1 100%;
  }
  .sp {
  display: block;
  }
}