/*
 Theme Name:portal27
 Theme URI:
 Description: 全新商务黑三栏WordPress主题，自适应+SEO优化
 Version: 1.0
 Author: Custom
 Text Domain: corp-dark
*/
html {
  scroll-behavior: smooth;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  background-color: #e9e9e9;
  color: #1a1a1a;
  line-height: 1.8;
  font-size: 15px;
}
ul, li {
  list-style: none;
}
a {
  color: #1a1a1a;
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover {
  color: #000000;
  text-decoration: underline;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* 全局容器 */
.wrap-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 16px;
}

/* 三栏布局核心 */
.main-layout {
  display: grid;
  grid-template-columns: 255px 1fr 255px;
  gap: 24px;
  margin: 36px 0;
}
.main-col {
  background: #ffffff;
  padding: 20px;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

/* 头部导航栏 */
.site-header {
  background-color: #121212;
  padding: 26px 0;
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.site-logo a {
  font-size: 26px;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
}
.site-nav a {
  color: #cccccc;
  margin-left: 22px;
  font-size: 14px;
}
.site-nav a:hover {
  color: #ffffff;
  text-decoration: none;
}

/* 面包屑导航 */
.bread-nav {
  background: #ffffff;
  padding: 12px 16px;
  margin-bottom: 24px;
  border-left: 4px solid #121212;
  font-size: 13px;
  color: #666;
}

/* 首页文章列表 */
.article-item {
  padding-bottom: 22px;
  margin-bottom: 22px;
  border-bottom: 1px dashed #dddddd;
}
.article-title {
  font-size: 19px;
  margin-bottom: 10px;
  font-weight: 600;
}
.article-meta {
  font-size: 13px;
  color: #777;
  margin-bottom: 12px;
}
.article-meta span {
  margin-right: 14px;
}
.article-desc {
  font-size: 14px;
  color: #444;
}

/* 分页样式 */
.page-pagination {
  text-align: center;
  margin: 30px 0 10px;
}
.page-pagination a,
.page-pagination .page-current {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid #ccc;
  margin: 0 4px;
  background: #fff;
  font-size: 14px;
}
.page-pagination .page-current {
  background: #121212;
  color: #fff;
  border-color: #121212;
}

/* 侧边栏组件 */
.sidebar-widget {
  margin-bottom: 28px;
}
.widget-title {
  font-size: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #121212;
  margin-bottom: 16px;
  font-weight: 600;
}
.side-list li {
  padding: 9px 0;
  border-bottom: 1px dotted #eee;
  font-size: 14px;
}
.side-post-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.side-post-thumb {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 4px;
}

/* 单篇文章内容页 */
.single-head {
  margin-bottom: 24px;
}
.single-title {
  font-size: 26px;
  margin-bottom: 12px;
}
.single-meta {
  font-size: 13px;
  color: #777;
}
.single-content {
  font-size: 16px;
  line-height: 2;
  margin-bottom: 30px;
}
.post-link-nav {
  padding: 16px 0;
  border-top: 1px solid #eee;
  border-bottom: 1px solid #eee;
  margin-bottom: 30px;
  font-size: 14px;
}
.post-link-nav > div {
  padding: 6px 0;
}
.related-block {
  margin-top: 20px;
}

/* 页脚 */
.site-footer {
  background: #121212;
  color: #aaa;
  text-align: center;
  padding: 24px 0;
  margin-top: 20px;
  font-size: 13px;
}
.site-footer a {
  color: #ccc;
}

/* 移动端自适应 */
@media (max-width: 1120px) {
  .main-layout {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 640px) {
  .header-inner {
    flex-direction: column;
    gap: 16px;
  }
  .site-nav {
    text-align: center;
  }
  .site-nav a {
    margin: 0 10px;
  }
}