/*
Theme Name:portal30
Description: 天蓝色科技风三列瀑布流 WordPress 主题
Version: 1.0
Author: Custom
*/
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  background: #f5f9ff;
  color: #2d3748;
  line-height: 1.7;
}
a {
  color: #3b82f6;
  text-decoration: none;
  transition: all 0.2s;
}
a:hover {
  color: #1d4ed8;
}
img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
}
.container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 16px;
}

/* 瀑布流三栏布局 */
.main {
  display: grid;
  grid-template-columns: 270px 1fr 270px;
  gap: 24px;
  margin: 36px 0;
}

/* 文章卡片 */
.card {
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.04);
  padding: 24px;
  margin-bottom: 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.card-thumb {
  width: 90px;
  height: 90px;
  object-fit: cover;
  flex-shrink: 0;
}
.card-body {
  flex: 1;
}

/* 头部 */
.header {
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(0,0,0,004);
  padding: 22px 0;
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo a {
  font-size: 24px;
  font-weight: 600;
  color: #3b82f6;
  text-decoration: none;
}
.nav a {
  color: #4b5563;
  margin-left: 20px;
  font-size: 14px;
}

/* 面包屑 */
.bread {
  background: #ffffff;
  padding: 12px 16px;
  border-left: 3px solid #3b82f6;
  margin-bottom: 24px;
  font-size: 13px;
  border-radius: 6px;
}

/* 文章信息 */
.post-title {
  font-size: 17px;
  margin-bottom: 8px;
  font-weight: 500;
}
.meta {
  font-size: 12px;
  color: #6b7280;
  margin-bottom: 10px;
}
.meta span {
  margin-right: 10px;
}
.excerpt {
  font-size: 14px;
  color: #4b5563;
  line-height: 1.6;
}

/* 分页 */
.pages {
  text-align: center;
  margin: 20px 0;
}
.pages a,
.pages span {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid #e5e7eb;
  margin: 0 3px;
  border-radius: 6px;
}
.pages .current {
  background: #3b82f6;
  color: #fff;
  border-color: #3b82f6;
}

/* 侧边栏 */
.sidebar {
  background: #ffffff;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.04);
}
.widget {
  margin-bottom: 28px;
}
.widget h3 {
  font-size: 15px;
  padding-bottom: 8px;
  border-bottom: 2px solid #3b82f6;
  margin-bottom: 14px;
}
.side-item {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 12px;
}
.side-img {
  width: 50px;
  height: 50px;
  object-fit: cover;
}

/* 内容页 */
.single-title {
  font-size: 24px;
  margin-bottom: 16px;
}
.post-nav {
  border-top: 1px solid #eee;
  border-bottom: 1px solid #eee;
  padding: 16px 0;
  margin: 26px 0;
}
.related {
  margin-top: 24px;
}

/* 底部 */
.footer {
  background: #ffffff;
  text-align: center;
  padding: 24px 0;
  margin-top: 20px;
  font-size: 13px;
  color: #6b7280;
}

/* 手机自适应：侧边栏在底部 */
@media (max-width: 1100px) {
  .main {
    grid-template-columns: 1fr;
  }
  .sidebar {
    order: 3;
  }
  .card {
    flex-direction: column;
  }
  .card-thumb {
    width: 100%;
    height: 160px;
  }
}