/* ABA 经营分析平台 — 官网统一样式 */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #1f2937; background: #fff; line-height: 1.7;
}
.container { max-width: 960px; margin: 0 auto; padding: 0 24px; }

header.site {
  border-bottom: 1px solid #e5e7eb; background: #fff;
  position: sticky; top: 0; z-index: 10;
}
header.site .container {
  display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.brand { font-size: 18px; font-weight: 700; color: #1e2842; text-decoration: none; }
.brand span { color: #1a56db; }
nav.site a {
  margin-left: 24px; color: #4b5563; text-decoration: none; font-size: 14px;
}
nav.site a:hover, nav.site a.active { color: #1a56db; }

.hero { background: linear-gradient(135deg, #1e2842 0%, #10162e 100%); color: #fff; padding: 88px 0; }
.hero h1 { font-size: 34px; line-height: 1.4; margin-bottom: 16px; }
.hero p { font-size: 16px; color: #c8d3e8; max-width: 640px; }
.hero .badge {
  display: inline-block; background: rgba(26,86,219,.25); border: 1px solid #1a56db;
  color: #93c5fd; font-size: 13px; border-radius: 999px; padding: 4px 14px; margin-bottom: 20px;
}

section.block { padding: 64px 0; }
section.block.alt { background: #f8fafc; }
h2.sec { font-size: 24px; color: #1e2842; margin-bottom: 8px; }
p.sec-sub { color: #6b7280; margin-bottom: 36px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.card {
  border: 1px solid #e5e7eb; border-radius: 12px; padding: 24px; background: #fff;
}
.card h3 { font-size: 16px; color: #1e2842; margin-bottom: 8px; }
.card p { font-size: 14px; color: #4b5563; }

article.doc h1 { font-size: 26px; margin: 40px 0 8px; color: #1e2842; }
article.doc .updated { color: #9ca3af; font-size: 13px; margin-bottom: 32px; }
article.doc h2 { font-size: 18px; margin: 32px 0 12px; color: #1e2842; }
article.doc p, article.doc li { font-size: 15px; color: #374151; }
article.doc ul { padding-left: 22px; margin: 8px 0; }
article.doc table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
article.doc th, article.doc td { border: 1px solid #e5e7eb; padding: 10px 12px; text-align: left; }
article.doc th { background: #f8fafc; }

footer.site {
  border-top: 1px solid #e5e7eb; background: #f8fafc; padding: 32px 0;
  font-size: 13px; color: #6b7280;
}
footer.site .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
footer.site a { color: #6b7280; text-decoration: none; margin-left: 16px; }
footer.site a:hover { color: #1a56db; }