body {
  margin: 0;
  padding: 0;
  background: #f8f8f8;
  font-family: 'Helvetica Neue', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  text-align: center;
  flex-direction: column;
}

.logo {
  max-width: 80%;
  height: auto;
  margin-bottom: 30px;
}

h1 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: #333;
}

.intro {
  width: 600px;
  max-width: 90%;
  margin-bottom: 40px;
  color: #333;
}

.intro h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
  color: #2a2a2a;
}

.intro p {
  font-size: 1rem;
  line-height: 1.8;
  color: #555;
}

.gradient-title {
  font-size: 1.5rem;
  font-weight: bold;
  background: linear-gradient(to right, #ff758c, #ff7eb3);
  -webkit-background-clip: text;      /* Safari, Chrome用 */
  -webkit-text-fill-color: transparent; /* Safari, Chrome用 */
  background-clip: text;              /* Firefox用 */
  color: transparent;
  display: inline-block; /* 追加必須 */
}

.news {
  width: 600px;
  max-width: 90%;
  background: #fff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
  margin-bottom: 30px;
}

.news h2 {
  font-size: 1.2rem;
  color: #222;
  margin-bottom: 10px;
}

.news p {
  font-size: 1rem;
  color: #444;
  line-height: 1.6;
}

.social {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
}

.social img {
  width: 24px;
  height: 24px;
}

.social span {
  font-size: 1rem;
  color: #555;
}

.contact {
  font-size: 0.95rem;
  color: #777;
  margin-bottom: 10px;
}

footer {
  font-size: 0.8rem;
  color: #aaa;
  margin-top: auto;
  padding: 10px 0;
}

.map-container {
  position: relative;
  width: 100%;
  max-width: 600px;
  padding-top: 56.25%;
  margin: 0 auto 30px;
}

.map-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }

  .intro h3 {
    font-size: 1.2rem;
  }

  .intro p {
    font-size: 0.95rem;
    line-height: 1.6;
  }

  .news h2 {
    font-size: 1rem;
  }

  .news p {
    font-size: 0.9rem;
  }

  .social span {
    font-size: 0.9rem;
  }

  .contact {
    font-size: 0.85rem;
  }

  footer {
    font-size: 0.75rem;
  }
}