.container {
  font-family: var(--font-sans, "Oswald", "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif);
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
  font-size: 1.2em;
}

header.xx {
  text-align: center;
  padding: 60px 20px 50px;
  border-top: 4px solid #e74c3c;
  border-bottom: 4px solid #e74c3c;
  margin-bottom: 50px;
  background-color: #ffffff;
  background-image: url('/sp/childBuzzer/xx.jpg');
}

h1 {
  font-size: 3em;
  color: #e74c3c;
  margin-bottom: 15px;
  line-height: 1.5;
  font-weight: 900;
}

.subtitle {
  font-size: 1.1em;
  color: #666666;
  margin-top: 10px;
}

.intro {
  margin-bottom: 50px;
  padding: 30px;
  background: #fff9f7;
  border-radius: 8px;
}

.intro p {
  margin-bottom: 20px;
  font-size: 1.05em;
}

.intro p:last-child {
  margin-bottom: 0;
}

.emphasis {
  color: #e74c3c;
  font-weight: bold;
}

.important-message {
  margin: 40px 0;
  padding: 25px;
  border: 3px solid #e74c3c;
  border-radius: 8px;
  background: #ffffff;
}

.important-message p {
  margin-bottom: 15px;
  font-size: 1.1em;
  line-height: 1.8;
}

.important-message p:last-child {
  margin-bottom: 0;
  font-weight: bold;
  color: #e74c3c;
  font-size: 1.15em;
}

h2 {
  font-size: 2em;
  color: #333333;
  margin: 60px 0 35px;
  padding-bottom: 15px;
  border-bottom: 3px solid #e74c3c;
}

.campaign-item {
  margin: 35px 0;
  padding: 30px;
  border: 2px solid #eeeeee;
  border-radius: 8px;
}

.campaign-number {
  display: inline-block;
  width: 45px;
  height: 45px;
  background: #e74c3c;
  color: #ffffff;
  border-radius: 50%;
  text-align: center;
  line-height: 45px;
  font-weight: bold;
  font-size: 1.3em;
  margin-right: 15px;
  vertical-align: middle;
}

.campaign-title {
  display: inline-block;
  font-size: 1.4em;
  font-weight: bold;
  color: #333333;
  vertical-align: middle;
  margin-bottom: 20px;
}

.campaign-content {
  margin-top: 20px;
  padding-left: 15px;
  font-size: 1.05em;
  line-height: 1.9;
}

.note {
  color: #666666;
  font-size: 0.95em;
  margin-top: 10px;
}

.support-section {
  margin: 50px 0;
  padding: 30px;
  background: #f8f8f8;
  border-radius: 8px;
}

.support-section h3 {
  font-size: 1.4em;
  color: #333333;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #cccccc;
}

.support-list {
  margin: 15px 0;
  padding-left: 20px;
}

.support-list p {
  margin: 12px 0;
  font-size: 1.05em;
  line-height: 1.7;
}

.contact {
  margin-top: 60px;
  padding: 35px;
  background: #333333;
  color: #ffffff;
  border-radius: 8px;
  text-align: center;
}

.contact h3 {
  font-size: 1.5em;
  margin-bottom: 20px;
}

.contact p {
  font-size: 1.1em;
  margin: 10px 0;
}

.contact a {
  color: #ffffff;
  text-decoration: none;
  border-bottom: 1px solid #ffffff;
}

.contact a:hover {
  opacity: 0.8;
}

.campaign-item-link {
  text-align: center;
  font-size: 1.2em;
  background-color: #fff;
}

.contact-phone {
  margin-top: 20px;
}

@media (max-width: 768px) {
  h1 {
    font-size: 1.8em;
  }

  h2 {
    font-size: 1.6em;
  }

  .campaign-number {
    width: 38px;
    height: 38px;
    line-height: 38px;
    font-size: 1.1em;
  }

  .campaign-title {
    font-size: 1.2em;
    display: block;
    margin-top: 15px;
  }

  .intro,
  .campaign-item,
  .support-section,
  .contact {
    padding: 20px;
  }
}