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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
    'Microsoft YaHei', sans-serif;
  color: #333;
  background: #f7f7f7;
  line-height: 1.6;
}

a {
  color: #a51900;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  background: linear-gradient(135deg, #991b1b, #a51900);
  color: #fff;
  padding: 48px 0 56px;
}

.site-header h1 {
  font-size: 32px;
  margin-bottom: 8px;
}

.site-header p {
  font-size: 16px;
  opacity: 0.9;
}

.nav {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.nav a {
  color: #fff;
  background: rgba(255, 255, 255, 0.15);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
}

.nav a:hover {
  background: rgba(255, 255, 255, 0.25);
  text-decoration: none;
}

.section {
  background: #fff;
  border-radius: 12px;
  padding: 28px;
  margin: 24px 0;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.section h2 {
  font-size: 20px;
  color: #a51900;
  margin-bottom: 16px;
}

.section p,
.section li {
  font-size: 15px;
  color: #555;
}

.feature-list {
  list-style: none;
  display: grid;
  gap: 12px;
}

.feature-list li {
  padding: 12px 16px;
  background: #fff8f0;
  border-radius: 8px;
  border-left: 4px solid #a51900;
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.legal-page {
  padding: 32px 0 48px;
}

.legal-page h1 {
  font-size: 26px;
  color: #a51900;
  margin-bottom: 8px;
}

.legal-meta {
  font-size: 14px;
  color: #999;
  margin-bottom: 24px;
}

.legal-content {
  background: #fff;
  border-radius: 12px;
  padding: 32px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  white-space: pre-wrap;
  font-size: 15px;
  line-height: 1.8;
  color: #444;
}

.back-link {
  display: inline-block;
  margin-bottom: 20px;
  font-size: 14px;
}

.site-footer {
  text-align: center;
  padding: 32px 20px 48px;
  font-size: 13px;
  color: #999;
}

.site-footer a {
  margin: 0 8px;
}

@media (max-width: 600px) {
  .site-header h1 {
    font-size: 26px;
  }

  .section,
  .legal-content {
    padding: 20px;
  }
}