@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;700&display=swap');
body {
  font-family: 'Noto Sans JP', sans-serif;
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
  background-color: #fff8f0;
  background-image: url('https://www.transparenttextures.com/patterns/lined-paper.png');
  color: #333;
}
h1 {
  text-align: center;
  color: #d86b6b;
  margin-bottom: 40px;
  font-size: 1.8em;
}
h2 {
  margin-top: 10px;
  border-left: 6px solid #ffa3b1;
  padding-left: 12px;
  font-size: 1.3em;
  color: #a55555;
  background-color: #fff0f5;
  border-radius: 4px;
}
.logo-container {
  margin: 0 auto 20px auto;
  text-align: center;
}
.logo {
  width: 100%;
  height: auto;
}
.video-block {
  background: #ffffff;
  padding: 10px;
  margin: 20px 0;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  border: 2px dashed #f4cccc;
}
iframe {
  width: 100%;
  height: 320px;
  border: none;
  border-radius: 8px;
}
@media (min-width: 600px) {
  iframe {
    height: 450px;
  }
}
.footer {
  margin-top: 60px;
  padding: 20px 0;
  text-align: center;
  border-top: 1px solid #e0caca;
}
.footer-logo-container {
  max-width: 400px;
  margin: 0 auto;
}
.footer-logo {
  width: 100%;
  height: auto;
  max-width: 300px;
}