* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #333;
  background: #f5f7fa;
}

a {
  color: #0d6efd;
  text-decoration: none;
}

.container {
  max-width: 1100px;
  margin: auto;
  padding: 20px;
}

.header {
  background: #fff;
  border-bottom: 1px solid #ddd;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: px;
}

nav a {
  margin-left: 15px;
}

.header .container .logo a img {
  display: block;
  width: 100%;
  height: 65px;
  background: white;
}
.hero {
  background: #0d6efd;
  color: #fff;
  padding: 40px 0;
}

.hero h1 {
  margin: 0 0 10px;
}

.paths {
  display: flex;
  gap: 20px;
  margin-top: 30px;
}

.path-box {
  background: #fff;
  padding: 20px;
  border-radius: 4px;
  flex: 1;
}

.categories h2,
.posts h2,
.recommend h2 {
  margin-top: 40px;
}

.cat-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.cat-list a {
  background: #fff;
  padding: 10px 15px;
  border-radius: 4px;
}

.posts article {
  background: #fff;
  padding: 15px;
  margin-bottom: 15px;
  border-radius: 4px;
}

.rec-box {
  background: #fff;
  padding: 20px;
  border-radius: 4px;
}

.footer {
  background: #fff;
  border-top: 1px solid #ddd;
  margin-top: 40px;
  text-align: center;
}

.breadcrumb {
  font-size: 14px;
  color: #666;
}

.breadcrumb a {
  color: #0d6efd;
}

.article {
  max-width: 1070px;
}

.post-meta {
  font-size: 14px;
  color: #777;
  margin-bottom: 15px;
}

.intro {
  font-size: 18px;
  line-height: 1.6;
}

.article h1 {
  font-size: 28px;
}

.article h2 {
  margin-top: 30px;
  font-size: 22px;
}

.article h3 {
  margin-top: 20px;
}

.article p,
.article li {
  line-height: 1.7;
}

.note-box {
  background: #e9f2ff;
  padding: 15px;
  border-left: 4px solid #0d6efd;
  margin: 20px 0;
}

.product-box {
  background: #fff;
  border: 1px solid #ddd;
  padding: 20px;
  margin: 30px 0;
}

.product-box .btn {
  display: inline-block;
  margin-top: 10px;
  background: #0d6efd;
  color: #fff;
  padding: 10px 15px;
  border-radius: 4px;
}

.related ul {
  padding-left: 20px;
}
/*  */


/* Mobile */
@media (max-width: 768px) {
  .paths {
    flex-direction: column;
  }

  nav {
    display: none;
  }
}