body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: #f5f5f7;
  margin: 0;
  padding: 0;
  color: #333;
}

.container {
  max-width: 720px;
  margin: auto;
  background: white;
  padding: 24px;
}

.logo {
  max-width: 120px;
  display: block;
  margin: 0 auto 16px;
}

h1 {
  text-align: center;
  margin-bottom: 4px;
}

.subtitle {
  text-align: center;
  color: #666;
  margin-bottom: 24px;
}

h2 {
  margin-top: 32px;
}

hr {
  border: none;
  border-top: 1px solid #e5e5e5;
  margin: 32px 0;
}

video {
  margin-top: 16px;
  border-radius: 8px;
}

.email a {
  color: #007aff;
  font-weight: bold;
  text-decoration: none;
}

footer {
  margin-top: 40px;
  text-align: center;
  font-size: 14px;
  color: #999;
}

.video-wrapper {
  max-width: 420px;
  margin: 0 auto;
}

.video-wrapper video {
  width: 100%;
  border-radius: 12px;
}

@media (max-width: 480px) {
  .video-wrapper {
    max-width: 100%;
  }
}