*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; font: 15px/1.7 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; color: #dbe4f3; background: #050a19; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.go-header { position: sticky; top: 0; z-index: 20; background: rgba(5, 10, 25, .85); backdrop-filter: blur(8px); border-bottom: 1px solid rgba(255, 255, 255, .08); }
.go-header-inner { display: flex; align-items: center; gap: 28px; height: 64px; }
.go-logo { font-size: 20px; font-weight: 900; letter-spacing: 3px; color: #fff; }
.go-nav { display: flex; gap: 22px; flex: 1; overflow-x: auto; white-space: nowrap; }
.go-nav a { color: #9fb0cc; padding: 20px 0; border-bottom: 2px solid transparent; }
.go-nav a.active { color: #fff; border-color: var(--accent); }
.go-btn { display: inline-block; background: var(--accent); color: #fff !important; font-weight: 700; padding: 12px 34px; border-radius: 4px; clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%); }
.go-btn-sm { padding: 7px 20px; font-size: 14px; }
.go-btn-ghost { background: transparent; border: 1px solid #fff; clip-path: none; }

.go-hero { min-height: 72vh; display: flex; align-items: flex-end; background: radial-gradient(ellipse at 50% 30%, #1e3a8a 0%, #050a19 70%); background-size: cover; background-position: center top; padding-bottom: 72px; }
.go-hero-inner { text-align: center; width: 100%; }
.go-hero h1 { font-size: 64px; margin: 0; color: #fff; letter-spacing: 6px; text-shadow: 0 4px 24px rgba(0, 0, 0, .6); }
.go-hero p { font-size: 20px; color: #c7d2e8; margin: 8px 0 28px; }
.go-ctas { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

.go-main { padding: 56px 20px; }
.go-heading { display: flex; flex-direction: column; font-size: 26px; color: #fff; margin: 0 0 20px; }
.go-heading span { font-size: 12px; letter-spacing: 4px; color: var(--accent); font-weight: 700; }
.go-news { display: grid; grid-template-columns: minmax(0, 1fr) 460px; gap: 32px; margin-bottom: 64px; }
.go-news-list { list-style: none; margin: 0; padding: 0; }
.go-news-list li { display: flex; align-items: baseline; gap: 12px; padding: 12px 0; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.go-news-list .t { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #e8eefb; }
.go-news-list time { color: #6b7a96; font-size: 13px; flex: none; }
.go-tag { flex: none; font-size: 12px; color: var(--accent); border: 1px solid var(--accent); padding: 0 8px; border-radius: 2px; }
.go-news-visual { position: relative; border-radius: 6px; overflow: hidden; align-self: start; }
.go-news-visual img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.go-news-visual span { position: absolute; left: 0; right: 0; bottom: 0; padding: 30px 16px 12px; background: linear-gradient(transparent, rgba(0, 0, 0, .85)); color: #fff; font-weight: 600; }

.go-features { margin-bottom: 64px; }
.go-feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.go-feature { background: linear-gradient(160deg, rgba(59, 130, 246, .18), rgba(255, 255, 255, .02)); border: 1px solid rgba(255, 255, 255, .08); border-radius: 8px; padding: 24px; }
.go-feature b { font-size: 36px; color: var(--accent); opacity: .6; }
.go-feature h3 { margin: 4px 0 8px; color: #fff; }
.go-feature p { margin: 0; color: #9fb0cc; }

.go-channels { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin-bottom: 64px; }
.go-channel { background: rgba(255, 255, 255, .03); border: 1px solid rgba(255, 255, 255, .08); border-radius: 8px; padding: 18px 20px; }
.go-channel h3 { margin: 0 0 10px; font-size: 18px; color: #fff; border-left: 3px solid var(--accent); padding-left: 10px; }
.go-channel ul { list-style: none; margin: 0 0 8px; padding: 0; font-size: 14px; }
.go-channel li { display: flex; justify-content: space-between; gap: 10px; padding: 5px 0; }
.go-channel li a { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.go-channel time { color: #6b7a96; font-size: 12px; flex: none; }
.more { font-size: 13px; color: var(--accent); }
.go-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.go-gallery img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 6px; }

.go-panel { background: rgba(255, 255, 255, .03); border: 1px solid rgba(255, 255, 255, .08); border-radius: 8px; padding: 28px 32px; }
.crumbs { margin: 0 0 12px; font-size: 13px; color: #6b7a96; }
.desc { color: #9fb0cc; margin-top: -10px; }
.go-tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.go-tabs a { border: 1px solid rgba(255, 255, 255, .2); padding: 3px 14px; border-radius: 2px; font-size: 14px; }
.go-news-cards li { display: grid; grid-template-columns: 200px 1fr; grid-template-rows: auto auto 1fr; column-gap: 18px; }
.go-news-cards li > a:first-child { grid-row: 1 / 4; }
.go-news-cards img { width: 200px; aspect-ratio: 16 / 10; object-fit: cover; border-radius: 4px; }
.go-news-cards .t { white-space: normal; font-size: 17px; font-weight: 700; }
.go-news-cards p { margin: 4px 0; color: #9fb0cc; font-size: 14px; }
.go-article { max-width: 920px; margin: 0 auto; }
.go-article-head h1 { color: #fff; font-size: 30px; line-height: 1.4; margin: 10px 0 6px; }
.meta { color: #6b7a96; font-size: 13px; display: flex; gap: 14px; }
.go-cover { margin: 20px 0; }
.go-cover img { border-radius: 6px; width: 100%; }
.go-body { font-size: 16px; line-height: 1.95; color: #c7d2e8; }
.go-body h2, .go-body h3 { color: #fff; }
.go-body h2 { border-left: 3px solid var(--accent); padding-left: 10px; }
.go-body a { color: var(--accent); }
.go-body table { border-collapse: collapse; width: 100%; }
.go-body th, .go-body td { border: 1px solid rgba(255, 255, 255, .15); padding: 6px 10px; }
.go-body img { border-radius: 6px; margin: 12px auto; }
.go-prev-next { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 32px; }
.go-prev-next a { border: 1px solid rgba(255, 255, 255, .12); padding: 12px 16px; border-radius: 4px; }
.go-prev-next .next { grid-column: 2; text-align: right; }
.go-prev-next small { display: block; color: var(--accent); }
.go-related { margin-top: 28px; }
.go-related h2 { font-size: 18px; color: #fff; }
.go-related ul { list-style: none; margin: 0; padding: 0; }
.go-related li { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid rgba(255, 255, 255, .06); }
.go-related time { color: #6b7a96; font-size: 12px; }

.pagination { display: flex; justify-content: center; gap: 14px; margin-top: 20px; }
.pagination a { border: 1px solid rgba(255, 255, 255, .2); padding: 3px 14px; }
.empty { color: #6b7a96; text-align: center; }
.go-footer { border-top: 1px solid rgba(255, 255, 255, .08); padding: 36px 0; text-align: center; color: #6b7a96; font-size: 13px; }
.go-footer-logo { font-size: 18px; font-weight: 900; letter-spacing: 3px; color: #9fb0cc; }
.go-footer nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; margin-bottom: 8px; }

@media (max-width: 900px) {
  .go-news { grid-template-columns: 1fr; }
  .go-hero h1 { font-size: 40px; }
  .go-news-cards li { grid-template-columns: 1fr; }
  .go-news-cards li > a:first-child { grid-row: auto; }
  .go-panel { padding: 20px; }
  .go-header-inner { gap: 16px; }
  .go-hero { min-height: 56vh; padding-bottom: 48px; }
}

@media (max-width: 560px) {
  .go-hero h1 { font-size: 30px; letter-spacing: 2px; }
  .go-hero p { font-size: 16px; }
  .go-header .go-btn-sm { display: none; }
  .go-prev-next { grid-template-columns: 1fr; }
  .go-prev-next .next { grid-column: auto; }
  .go-main { padding: 32px 16px; }
}

.go-heading-rev { flex-direction: column-reverse; }
.go-logo { display: flex; align-items: center; gap: 8px; flex: none; }
.go-logo img { border-radius: 6px; }
.go-footer .seo-footer-nav a:hover { color: var(--accent); }
.go-main .seo-related ul a, .go-main .seo-chip, .go-main .seo-tag { border-color: rgba(255, 255, 255, .18); }

/* ---- 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;
  }
}