/* style.css - 清爽大气前台模板 */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --bg: #f6f8fa;
  --card: #ffffff;
  --text: #1f2937;
  --text-light: #6b7280;
  --border: #e5e7eb;
  --radius: 10px;
  --shadow: 0 2px 12px rgba(15, 23, 42, .06);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.7; font-size: 15px;
}
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; display: block; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px; }

/* 顶部 */
.site-header { background: var(--card); border-bottom: 1px solid var(--border); box-shadow: var(--shadow); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; gap: 24px; height: 62px; }
.logo { font-size: 22px; font-weight: 700; color: var(--primary); letter-spacing: 1px; }
.nav { display: flex; gap: 6px; flex: 1; overflow-x: auto; }
.nav a { padding: 6px 14px; border-radius: 20px; color: var(--text); white-space: nowrap; }
.nav a:hover, .nav a.on { background: var(--primary); color: #fff; }
.search-form { display: flex; gap: 6px; }
.search-form input { border: 1px solid var(--border); border-radius: 20px; padding: 7px 14px; width: 170px; outline: none; }
.search-form input:focus { border-color: var(--primary); }
.search-form button { background: var(--primary); color: #fff; border: 0; border-radius: 20px; padding: 7px 16px; cursor: pointer; }

/* 布局 */
.main-content { padding: 24px 16px 40px; }
.home-layout { display: grid; grid-template-columns: 1fr 300px; gap: 24px; align-items: start; }
.hero { background: linear-gradient(135deg, #2563eb, #7c3aed); color: #fff; border-radius: var(--radius); padding: 40px 32px; margin-bottom: 24px; box-shadow: var(--shadow); }
.hero h1 { font-size: 26px; margin-bottom: 8px; }
.hero p { opacity: .9; }
.sec-title { font-size: 20px; margin: 8px 0 16px; padding-left: 12px; border-left: 4px solid var(--primary); }
.sec-title small { font-size: 13px; color: var(--text-light); font-weight: 400; margin-left: 8px; }
.crumb { color: var(--text-light); font-size: 13px; margin-bottom: 14px; }

/* 卡片网格 */
.article-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.card { background: var(--card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: transform .2s, box-shadow .2s; }
.card:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(15, 23, 42, .12); }
.card-img img { height: 170px; width: 100%; object-fit: cover; }
.card-body { padding: 14px 16px 16px; }
.card-body h3 { font-size: 16px; line-height: 1.5; margin-bottom: 6px; }
.card-body h3 a { color: var(--text); }
.card-body h3 a:hover { color: var(--primary); }
.summary { color: var(--text-light); font-size: 13px; }
.meta { margin-top: 10px; display: flex; align-items: center; gap: 10px; color: var(--text-light); font-size: 12px; flex-wrap: wrap; }
.cat-tag a { background: #eff6ff; color: var(--primary); padding: 2px 10px; border-radius: 12px; }
.tag-mini { background: #f3f4f6; padding: 1px 8px; border-radius: 10px; color: var(--text-light); }

/* 列表页 */
.list-rows { list-style: none; }
.list-row { display: flex; gap: 16px; background: var(--card); border-radius: var(--radius); padding: 16px; margin-bottom: 14px; box-shadow: var(--shadow); }
.row-img img { width: 200px; height: 130px; object-fit: cover; border-radius: 8px; }
.row-body h2 { font-size: 17px; margin-bottom: 6px; }
.row-body h2 a { color: var(--text); }
.row-body h2 a:hover { color: var(--primary); }

/* 详情页 */
.article-page { background: var(--card); border-radius: var(--radius); padding: 28px 32px; box-shadow: var(--shadow); }
.article-title { font-size: 26px; line-height: 1.4; margin: 10px 0; }
.article-meta { display: flex; gap: 16px; color: var(--text-light); font-size: 13px; border-bottom: 1px solid var(--border); padding-bottom: 16px; }
.article-lead { background: #f8fafc; border-left: 4px solid var(--primary); padding: 12px 16px; border-radius: 0 8px 8px 0; margin: 18px 0; color: var(--text-light); font-size: 14px; }
.article-content { padding: 20px 0; font-size: 16px; }
.article-content h2 { font-size: 20px; margin: 22px 0 10px; }
.article-content h3 { font-size: 17px; margin: 18px 0 8px; }
.article-content p { margin-bottom: 14px; }
.article-content img { margin: 14px auto; border-radius: 8px; }
.article-content ul, .article-content ol { margin: 0 0 14px 22px; }
.article-tags { border-top: 1px solid var(--border); padding-top: 16px; font-size: 13px; color: var(--text-light); }
.article-tags a { display: inline-block; background: #eff6ff; padding: 2px 12px; border-radius: 14px; margin-right: 8px; }
.related { margin-top: 20px; background: #f8fafc; border-radius: 8px; padding: 16px 20px; }
.related h3 { font-size: 16px; margin-bottom: 10px; }
.related li { list-style: none; padding: 5px 0; border-bottom: 1px dashed var(--border); }

/* 侧栏 */
.side-col .widget { background: var(--card); border-radius: var(--radius); padding: 18px; margin-bottom: 18px; box-shadow: var(--shadow); }
.widget h3 { font-size: 16px; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 2px solid var(--primary); display: inline-block; }
.rank-list { list-style: none; }
.rank-list li { display: flex; gap: 10px; padding: 7px 0; border-bottom: 1px dashed var(--border); align-items: center; }
.rank-list li:last-child { border-bottom: 0; }
.rank { width: 20px; height: 20px; background: #eff6ff; color: var(--primary); border-radius: 5px; text-align: center; line-height: 20px; font-size: 12px; flex-shrink: 0; }
.rank-list a { color: var(--text); font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cat-nav { list-style: none; }
.cat-nav li { padding: 6px 0; border-bottom: 1px dashed var(--border); }
.cat-nav a { color: var(--text); }
.tag-cloud a { display: inline-block; background: #f3f4f6; padding: 3px 12px; border-radius: 14px; margin: 0 8px 8px 0; font-size: 13px; color: var(--text); }
.tag-cloud a:hover { background: var(--primary); color: #fff; }

/* 分页 */
.pager { margin: 24px 0; text-align: center; }
.pager a { display: inline-block; min-width: 34px; padding: 6px 10px; margin: 0 4px; background: var(--card); border-radius: 8px; color: var(--text); box-shadow: var(--shadow); }
.pager a.cur, .pager a:hover { background: var(--primary); color: #fff; }

/* 404 */
.page-404 { text-align: center; padding: 80px 0; }
.page-404 h1 { font-size: 90px; color: var(--primary); }
.page-404 p { color: var(--text-light); margin: 10px 0 20px; }
.btn { background: var(--primary); color: #fff; padding: 10px 24px; border-radius: 24px; }
.empty { text-align: center; color: var(--text-light); padding: 40px 0; }

/* 底部 */
.site-footer { background: #1f2937; color: #d1d5db; margin-top: 30px; padding: 36px 0 20px; }
.footer-box { margin-bottom: 24px; }
.footer-box h3 { color: #fff; font-size: 15px; margin-bottom: 12px; }
.friend-links { list-style: none; display: flex; flex-wrap: wrap; gap: 12px; }
.friend-links a { color: #d1d5db; }
.friend-links a:hover { color: #fff; }
.copyright { border-top: 1px solid #374151; padding-top: 16px; font-size: 13px; text-align: center; }
.copyright a { color: #9ca3af; }

/* 移动端适配 */
@media (max-width: 900px) {
  .home-layout { grid-template-columns: 1fr; }
  .article-grid { grid-template-columns: 1fr; }
  .header-inner { flex-wrap: wrap; height: auto; padding: 10px 0; }
  .search-form { width: 100%; }
  .search-form input { flex: 1; width: auto; }
  .list-row { flex-direction: column; }
  .row-img img { width: 100%; height: 160px; }
  .article-page { padding: 20px; }
}