/* 资讯文采站点通用样式 */
:root {
  --primary: #3FA46A;
  --primary-light: #EAF7EF;
  --primary-dark: #2C7A4E;
  --bg-page: #F6FBF7;
  --footer-bg: #1E3227;
  --text-main: #1F2E24;
  --text-regular: #4F6357;
  --text-secondary: #88A091;
  --border: #DCEAE0;
  --radius: 10px;
  --shadow: 0 2px 12px rgba(0,0,0,0.06);
  --font: "PingFang SC","Microsoft YaHei",sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font); color: var(--text-main); background: var(--bg-page); line-height: 1.7; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* 顶部栏 */
.top-bar { background: var(--primary); color: #fff; font-size: 13px; padding: 7px 0; }
.top-bar .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.top-bar-links { display: flex; gap: 20px; }
.top-bar-links span { opacity: .92; }

/* 头部 */
.header { background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,.05); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 16px; }
.logo-wrap { display: flex; align-items: center; gap: 12px; }
.logo-wrap > i { font-size: 36px; color: var(--primary); }
.logo-text h1, .logo-text .logo-name { font-size: 21px; font-weight: 700; letter-spacing: .5px; }
.logo-text p { font-size: 12px; color: var(--text-secondary); }
.nav { display: flex; gap: 24px; }
.nav-item { font-size: 15px; padding: 6px 2px; border-bottom: 2px solid transparent; transition: .2s; }
.nav-item:hover, .nav-item.active { color: var(--primary); border-bottom-color: var(--primary); }
.hamburger { display: none; font-size: 22px; color: var(--primary); cursor: pointer; padding: 4px 8px; }
.mobile-menu { display: none; flex-direction: column; background: #fff; border-top: 1px solid var(--border); padding: 4px 16px 10px; }
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 11px 0; font-size: 15px; border-bottom: 1px solid var(--border); }
.mobile-menu a:last-child { border-bottom: none; }

/* 头条区 */
.headline { padding: 22px 0 6px; }
.headline-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; }
.headline-main { position: relative; display: block; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.headline-main img { width: 100%; height: 372px; object-fit: cover; transition: transform .4s; }
.headline-main:hover img { transform: scale(1.03); }
.headline-main .cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 40px 20px 18px;
  background: linear-gradient(transparent, rgba(0,0,0,.78)); color: #fff; }
.headline-main .cap h2 { font-size: 21px; line-height: 1.5; margin-bottom: 6px; }
.headline-main .cap p { font-size: 13px; opacity: .88; }
.headline-side { display: flex; flex-direction: column; gap: 16px; }
.headline-item { position: relative; display: block; flex: 1; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.headline-item img { width: 100%; height: 178px; object-fit: cover; transition: transform .4s; }
.headline-item:hover img { transform: scale(1.04); }
.headline-item .cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 12px 10px;
  background: linear-gradient(transparent, rgba(0,0,0,.72)); color: #fff; font-size: 14px; line-height: 1.5; }

/* 分类导航 */
.cat-nav { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); margin-top: 18px; overflow: hidden; }
.cat-nav-list { display: grid; grid-template-columns: repeat(4, 1fr); }
.cat-nav-item { text-align: center; padding: 18px 8px; font-size: 15px; border-right: 1px solid var(--border); transition: .2s; }
.cat-nav-item:last-child { border-right: none; }
.cat-nav-item:hover { background: var(--primary-light); color: var(--primary); }
.cat-nav-item i { display: block; font-size: 22px; margin-bottom: 8px; color: var(--primary); }

/* 通用区块 */
.section { padding: 26px 0; }
.section-title { text-align: center; margin-bottom: 22px; }
.section-title h3 { font-size: 22px; display: inline-block; }
.section-title .line { width: 44px; height: 3px; background: var(--primary); margin: 10px auto 8px; border-radius: 2px; }
.section-title p { font-size: 13.5px; color: var(--text-secondary); }

/* 分类卡片 */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cat-card { display: block; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: .25s; }
.cat-card:hover { transform: translateY(-4px); box-shadow: 0 8px 22px rgba(0,0,0,.1); }
.cat-card img { width: 100%; height: 148px; object-fit: cover; }
.cat-card-body { padding: 14px; }
.cat-card-body h4 { font-size: 15.5px; margin-bottom: 6px; }
.cat-card-body p { font-size: 13px; color: var(--text-regular); }

/* 文章卡片 */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.news-card { display: block; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: .25s; }
.news-card:hover { transform: translateY(-4px); box-shadow: 0 8px 22px rgba(0,0,0,.1); }
.news-card img { width: 100%; height: 168px; object-fit: cover; }
.news-content { padding: 14px; }
.news-date { font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; }
.news-content h4 { font-size: 15px; line-height: 1.55; margin-bottom: 8px; }
.news-content p { font-size: 13px; color: var(--text-regular); }

/* 首页两栏 */
.home-cols { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; align-items: start; }
.rank-list { background: #fff; border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.block-title { font-size: 17px; margin-bottom: 12px; padding-left: 12px; border-left: 4px solid var(--primary); line-height: 1.2; }
.post-item { display: flex; gap: 12px; align-items: flex-start; padding: 12px 0; border-bottom: 1px dashed var(--border); font-size: 14.5px; }
.post-item:last-child { border-bottom: none; }
.post-num { flex: 0 0 22px; height: 22px; line-height: 22px; text-align: center; border-radius: 4px;
  background: var(--primary-light); color: var(--primary); font-size: 12.5px; font-weight: 700; }
.post-item:nth-child(1) .post-num { background: var(--primary); color: #fff; }
.post-item:nth-child(2) .post-num { background: var(--primary); color: #fff; opacity: .82; }
.post-item:nth-child(3) .post-num { background: var(--primary); color: #fff; opacity: .64; }
.post-item a:hover { color: var(--primary); }
.side { display: flex; flex-direction: column; gap: 18px; }
.sidebar-card { background: #fff; border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.sidebar-card h5 { font-size: 15px; margin-bottom: 12px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.sidebar-card li { padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 13.5px; line-height: 1.6; }
.sidebar-card li:last-child { border-bottom: none; }
.sidebar-card li a:hover { color: var(--primary); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags span { background: var(--primary-light); color: var(--primary); font-size: 12.5px; padding: 5px 12px; border-radius: 999px; }

/* 页脚 */
.footer { background: var(--footer-bg); color: #bfbfbf; margin-top: 10px; padding: 38px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 24px; }
.footer-col h5 { color: #fff; font-size: 15px; margin-bottom: 12px; }
.footer-col p { font-size: 13px; color: #b0b0b0; line-height: 1.9; }
.footer-col a { display: block; font-size: 13px; color: #b0b0b0; line-height: 1.95; }
.footer-col a:hover { color: #fff; }
.friend-links { margin-top: 20px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.13);
  display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; font-size: 13px; }
.friend-links h6 { color: #fff; font-size: 13px; font-weight: 400; }
.friend-links a { color: #b0b0b0; }
.friend-links a:hover { color: #fff; }
.copyright { margin-top: 12px; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.13);
  text-align: center; font-size: 12px; color: #9a9a9a; }

/* 面包屑 */
.breadcrumb { background: #fff; padding: 12px 0; font-size: 13px; color: var(--text-secondary); margin-bottom: 20px; }
.breadcrumb a:hover { color: var(--primary); }

/* 文章页 */
.article-wrap { padding-bottom: 40px; }
.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 24px; align-items: start; }
.article-content { background: #fff; border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.article-content h1 { font-size: 24px; line-height: 1.5; margin-bottom: 12px; }
.article-meta { font-size: 13px; color: var(--text-secondary); padding-bottom: 16px;
  border-bottom: 1px solid var(--border); margin-bottom: 20px; }
.article-body p { font-size: 15px; color: var(--text-regular); margin-bottom: 16px; text-align: justify; }
.article-body h2 { font-size: 18px; margin: 24px 0 12px; padding-left: 12px; border-left: 4px solid var(--primary); line-height: 1.4; }
.article-body img { width: 100%; border-radius: var(--radius); margin: 16px 0; }
.sidebar { display: flex; flex-direction: column; gap: 18px; position: sticky; top: 88px; }
.article-side .sidebar-card { box-shadow: var(--shadow); }

/* 响应式 */
@media (max-width: 960px) {
  .headline-grid { grid-template-columns: 1fr; }
  .headline-main img { height: 260px; }
  .headline-side { flex-direction: row; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .home-cols { grid-template-columns: 1fr; }
  .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .cat-nav-list { grid-template-columns: repeat(2, 1fr); }
  .cat-nav-item:nth-child(2) { border-right: none; }
  .cat-nav-item:nth-child(1), .cat-nav-item:nth-child(2) { border-bottom: 1px solid var(--border); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .nav { display: none; }
  .hamburger { display: block; }
}
@media (max-width: 560px) {
  .top-bar-links { display: none; }
  .headline-main img { height: 220px; }
  .headline-side { flex-direction: column; }
  .headline-item img { height: 150px; }
  .cat-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .article-content { padding: 18px; }
  .logo-wrap > i { font-size: 30px; }
  .logo-text h1, .logo-text .logo-name { font-size: 18px; }
  .section-title h3 { font-size: 19px; }
}