body {
  margin: 0;
  font-family: Arial, sans-serif;
  line-height: 1.7;
  color: #243447;
  background: #f5f7fa;
}

a {
  color: #0d6aa8;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  width: 90%;
  max-width: 900px;
  margin: 0 auto;
}

.site-header {
  background: #ffffff;
  border-bottom: 1px solid #dbe4ec;
  padding: 20px 0;
}

.site-name {
  margin: 0;
  font-size: 28px;
  font-weight: bold;
  color: #123b5d;
}

.page-heading {
  padding: 40px 0 20px;
}

.page-heading h1 {
  margin: 0;
  font-size: 34px;
  color: #123b5d;
}

.blog-list,
.blog-content {
  padding-bottom: 40px;
}

.blog-card,
.content-card {
  background: #ffffff;
  border: 1px solid #dbe4ec;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 20px;
}

.blog-card h2,
.content-card h1,
.content-card h2,
.content-card h3,
.content-card h4 {
  color: #123b5d;
  line-height: 1.4;
}

.blog-card h2 {
  margin-top: 0;
  font-size: 24px;
}

.content-card h1 {
  margin-top: 0;
  font-size: 34px;
}

.content-card h2 {
  margin-top: 30px;
  font-size: 26px;
}

.content-card h3 {
  margin-top: 26px;
  font-size: 22px;
}

.content-card h4 {
  margin-top: 24px;
  font-size: 20px;
}

.meta-text {
  margin: 6px 0;
  color: #5c6f82;
  font-size: 15px;
}

.content-card p {
  margin: 14px 0;
}

.content-card ul {
  margin: 14px 0;
  padding-left: 20px;
}

.content-card li {
  margin-bottom: 10px;
}

.site-footer {
  background: #123b5d;
  color: #ffffff;
  padding: 24px 0;
}

.site-footer p {
  margin: 6px 0;
}

.site-footer a {
  color: #ffffff;
}

@media (max-width: 600px) {
  .site-name {
    font-size: 24px;
  }

  .page-heading h1,
  .content-card h1 {
    font-size: 28px;
  }

  .blog-card,
  .content-card {
    padding: 18px;
  }
}