* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.75;
  color: #222;
  background: #f6f7f9;
}

a {
  color: #2563eb;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

.site-header {
  background: #111827;
  color: white;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 64px;
}

.logo {
  color: white;
  font-size: 22px;
  font-weight: 700;
}

.nav nav a {
  color: white;
  margin-left: 18px;
}

.content {
  background: white;
  margin-top: 28px;
  margin-bottom: 28px;
  padding-top: 30px;
  padding-bottom: 40px;
  border-radius: 16px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.06);
}

.hero {
  padding: 36px 0;
  border-bottom: 1px solid #eee;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: 42px;
  margin: 0 0 10px;
}

.post-card {
  padding: 22px;
  margin: 18px 0;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  background: #fff;
}

.post-card h3 {
  margin-top: 0;
}

.meta {
  color: #6b7280;
  font-size: 14px;
}

.tag {
  display: inline-block;
  background: #eef2ff;
  color: #3730a3;
  padding: 2px 8px;
  border-radius: 999px;
  margin: 2px 4px 2px 0;
  font-size: 13px;
}

.post img {
  max-width: 100%;
  border-radius: 12px;
}

.site-footer {
  color: #6b7280;
  text-align: center;
  padding: 28px 0;
}