*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; font: 15px/1.75 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; color: #333; background: #fff; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--brand); }
img { max-width: 100%; height: auto; display: block; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.center { text-align: center; }
.btn { display: inline-block; background: var(--brand); color: #fff !important; padding: 10px 28px; border-radius: 4px; }
.btn-light { background: #fff; color: var(--brand) !important; }

.corp-header { background: #fff; box-shadow: 0 1px 8px rgba(0, 0, 0, .06); position: sticky; top: 0; z-index: 10; }
.corp-header-inner { display: flex; align-items: center; gap: 32px; height: 70px; }
.corp-logo { font-size: 22px; font-weight: 800; color: var(--brand); }
.corp-nav { display: flex; flex: 1; overflow-x: auto; white-space: nowrap; }
.corp-nav a { padding: 23px 16px; border-bottom: 3px solid transparent; }
.corp-nav a.active { color: var(--brand); border-color: var(--brand); }
.corp-phone { color: var(--brand); font-weight: 700; }

.corp-hero { background: linear-gradient(120deg, var(--brand), #081e3c); background-size: cover; background-position: center; color: #fff; padding: 110px 0; }
.corp-hero h1 { font-size: 42px; margin: 0; max-width: 720px; line-height: 1.3; }
.corp-hero p { font-size: 18px; opacity: .85; max-width: 640px; margin: 14px 0 28px; }
.corp-banner { background: linear-gradient(120deg, var(--brand), #081e3c); color: #fff; padding: 44px 0; }
.corp-banner h1 { margin: 0; font-size: 30px; }
.corp-banner p { margin: 6px 0 0; opacity: .85; }
.banner-cat { margin: 0; font-size: 22px; font-weight: 700; }

.corp-section { padding: 64px 0; }
.corp-alt { background: #f5f7fa; }
.corp-h2 { font-size: 30px; margin: 0 0 28px; display: flex; flex-direction: column; }
.corp-h2.center { align-items: center; }
.corp-h2 small { font-size: 13px; letter-spacing: 3px; color: var(--brand); }
.corp-about { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.about-text { white-space: pre-line; color: #555; font-size: 16px; }
.corp-about img { border-radius: 6px; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.biz-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 22px; }
.biz-card { background: #fff; border-radius: 6px; padding: 28px 24px; box-shadow: 0 2px 12px rgba(0, 0, 0, .05); border-top: 3px solid var(--brand); transition: transform .2s; }
.biz-card:hover { transform: translateY(-4px); color: inherit; }
.biz-no { font-size: 32px; font-weight: 800; color: var(--brand); opacity: .25; }
.biz-card h3 { margin: 0 0 6px; font-size: 20px; }
.biz-card p { color: #666; margin: 0 0 8px; }
.biz-card ul { margin: 0 0 10px; padding-left: 18px; color: #555; font-size: 14px; }
.biz-more { color: var(--brand); font-size: 14px; }
.news-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
.news-card { border: 1px solid #eee; border-radius: 6px; overflow: hidden; padding-bottom: 14px; transition: box-shadow .2s; }
.news-card:hover { box-shadow: 0 6px 20px rgba(0, 0, 0, .08); color: inherit; }
.news-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.news-card time, .news-card h3, .news-card p { padding: 0 16px; }
.news-card time { display: block; color: var(--brand); font-size: 13px; margin-top: 12px; }
.news-card h3 { margin: 4px 0; font-size: 17px; line-height: 1.5; }
.news-card p { margin: 0; color: #777; font-size: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.contact-card { background: #fff; border-radius: 6px; padding: 24px; box-shadow: 0 2px 12px rgba(0, 0, 0, .05); }
.contact-card h3 { margin: 0 0 10px; color: var(--brand); }
.contact-card dl { display: grid; grid-template-columns: 50px 1fr; gap: 6px; margin: 0 0 14px; }
.contact-card dt { color: #999; }
.contact-card dd { margin: 0; }

.corp-inner { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 36px; padding-top: 36px; padding-bottom: 56px; align-items: start; }
.side-nav { border: 1px solid #eee; border-radius: 6px; overflow: hidden; margin-bottom: 20px; }
.side-nav h3 { margin: 0; background: var(--brand); color: #fff; padding: 12px 18px; font-size: 16px; }
.side-nav a { display: block; padding: 10px 18px; border-bottom: 1px solid #f2f2f2; }
.side-nav a.child { padding-left: 34px; font-size: 14px; color: #666; }
.side-nav a.active { color: var(--brand); font-weight: 700; background: #f5f8fc; }
.crumbs { color: #999; font-size: 13px; border-bottom: 1px solid #eee; padding-bottom: 10px; margin: 0 0 20px; }
.corp-list { list-style: none; margin: 0; padding: 0; }
.corp-list li { display: flex; gap: 20px; padding: 18px 0; border-bottom: 1px dashed #e5e5e5; }
.corp-list img { width: 200px; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 4px; }
.corp-list .title { font-size: 18px; font-weight: 700; }
.corp-list p { margin: 6px 0; color: #777; font-size: 14px; }
.corp-list time { color: #aaa; font-size: 13px; }
.corp-title { font-size: 28px; margin: 0 0 6px; line-height: 1.4; }
.meta { color: #999; font-size: 13px; padding-bottom: 14px; border-bottom: 1px solid #eee; }
.corp-cover { margin: 20px 0; }
.corp-body { font-size: 16px; line-height: 1.95; }
.corp-body h2 { font-size: 20px; border-left: 4px solid var(--brand); padding-left: 10px; margin: 26px 0 10px; }
.corp-body img { margin: 12px auto; }
.corp-body table { border-collapse: collapse; width: 100%; }
.corp-body th, .corp-body td { border: 1px solid #e5e5e5; padding: 8px 12px; }
.corp-body th { background: #f5f7fa; }
.latest-box { margin-top: 32px; background: #f5f7fa; border-radius: 6px; padding: 16px 20px; }
.latest-box h3 { margin: 0 0 8px; font-size: 16px; }
.latest-box ul { list-style: none; margin: 0; padding: 0; }
.latest-box li { display: flex; justify-content: space-between; gap: 12px; padding: 5px 0; font-size: 14px; }
.latest-box time { color: #aaa; flex: none; }

.pagination { display: flex; justify-content: center; gap: 12px; margin-top: 24px; }
.pagination a { border: 1px solid #ddd; padding: 3px 14px; border-radius: 4px; }
.empty { text-align: center; color: #999; padding: 30px 0; }
.corp-footer { background: #0d1b2e; color: #9aa7b8; font-size: 14px; }
.corp-footer-inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; padding-top: 40px; padding-bottom: 24px; }
.corp-footer-inner p { margin: 4px 0; }
.corp-footer-name { font-size: 18px; color: #fff; font-weight: 700; }
.corp-footer nav { display: flex; flex-wrap: wrap; gap: 18px; align-content: flex-start; }
.corp-footer a { color: #c8d1dc; }
.corp-copy { border-top: 1px solid rgba(255, 255, 255, .08); padding-top: 14px; padding-bottom: 20px; font-size: 13px; }
.corp-copy p { margin: 2px 0; }

.corp-logo img { display: block; height: 36px; width: auto; }
.corp-subnav { display: flex; flex-wrap: wrap; gap: 8px; margin: -6px 0 16px; }
.corp-subnav a { padding: 3px 12px; font-size: 13px; border: 1px solid #dde3ea; border-radius: 3px; }
.corp-footer .seo-footer-nav ul { justify-content: flex-start; }

@media (max-width: 900px) {
  .corp-about, .corp-inner { grid-template-columns: 1fr; }
  .corp-hero { padding: 60px 0; max-height: 80vh; }
  .corp-nav a { padding: 14px 12px; }
  .corp-header-inner { flex-wrap: wrap; }
  .corp-hero h1 { font-size: 30px; }
  .corp-phone { display: none; }
  .corp-list img { width: 120px; }
}

/* ---- SEO 公共区块与响应式基础（各主题共用，类名以 seo- 开头） ---- */
img,
video {
  max-width: 100%;
  height: auto;
}

table:not([class]) {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  -webkit-overflow-scrolling: touch;
}

pre {
  max-width: 100%;
  overflow-x: auto;
}

.seo-footer-nav {
  margin: 0 0 12px;
  font-size: 13px;
}

.seo-footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.seo-footer-nav ul ul {
  display: inline-flex;
  gap: 4px 10px;
  margin-left: 8px;
  opacity: 0.8;
}

.seo-footer-nav a {
  color: inherit;
  text-decoration: none;
}

.seo-footer-nav a:hover {
  text-decoration: underline;
}

.seo-related,
.seo-tags,
nav.seo-back {
  margin: 24px 0;
}

.seo-related h2 {
  margin: 0 0 10px;
  font-size: 16px;
}

.seo-related ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.seo-related ul a,
.seo-chip,
.seo-tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 13px;
  line-height: 1.6;
  color: inherit;
  text-decoration: none;
  border: 1px solid rgba(127, 127, 127, 0.35);
  border-radius: 999px;
}

.seo-tag {
  background: rgba(127, 127, 127, 0.08);
}

.seo-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.seo-tags-label {
  font-size: 13px;
  opacity: 0.75;
}

.seo-back {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
}

.seo-back-link {
  font-weight: 600;
}

.seo-paged-title {
  margin: 0 0 16px;
  font-size: 22px;
}

@media (max-width: 640px) {
  .seo-footer-nav ul ul {
    display: none;
  }

  .seo-related ul a,
  .seo-chip {
    padding: 6px 12px;
  }
}