/* openplatform-bridge.css — 平台渲染的文章页对齐本站视觉（只覆盖配色与字体，不改结构） */
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: #333; background: #fff; line-height: 1.85;
}
.nav { background: #2b1361; padding: 0 24px; min-height: 64px; display: flex; align-items: center; gap: 12px; }
.nav a { color: #fff; font-family: inherit; font-size: 16px; font-weight: 600; letter-spacing: 0; }
.nav a:hover { color: #fff; opacity: .85; }
.nav small { color: rgba(255, 255, 255, .7); font-size: 11px; letter-spacing: .2em; }
main { max-width: 880px; padding: 40px 20px 64px; }
.kicker { color: #2b1361; font-size: 13px; letter-spacing: .04em; text-transform: none; }
h1, h2, h3, strong { font-family: inherit; }
h1 { font-size: clamp(24px, 3vw, 32px); color: #1a1a2e; letter-spacing: 0; }
.body { font-size: 16px; color: #333; }
.body h2 { font-size: 20px; color: #1a1a2e; margin: 32px 0 12px; padding-left: 10px; border-left: 3px solid #2b1361; }
.body h3 { font-size: 17px; color: #1a1a2e; }
.body a { color: #2b1361; }
.body img { border-radius: 4px; margin: 22px auto; }
.body th, .body td { border-color: #ececf3; }
.body thead th { background: #f6f8f8; }
.body blockquote { border-left: 3px solid #2b1361; background: #f6f8f8; }
.meta { color: #8a8aa0; }
details { background: #f6f8f8; border: 1px solid #ececf3; border-radius: 6px; }
summary { color: #2b1361; }
.cta { background: #2b1361; border-radius: 6px; }
.cta strong { color: #fff; }
.cta a { background: #fff; color: #2b1361; }
.art-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.art-card { background: #fff; border: 1px solid #ececf3; border-radius: 6px; }
.art-card:hover { border-color: #2b1361; }
.art-card h2, .art-card h3 { border: 0; padding: 0; font-size: 17px; }
.pager a { color: #2b1361; }
.src a, .art-card a, .cta + p a { color: #2b1361; }
footer { background: #f6f8f8; color: #5a5a72; border-top: 1px solid #ececf3; text-align: left; padding: 26px 24px; }
footer a { color: #5a5a72; }
footer a:hover { color: #2b1361; }
@media screen and (max-width: 640px) {
  main { padding: 24px 16px 48px; }
  .nav { padding: 0 16px; }
  .body { font-size: 15.5px; }
  .body table { display: block; overflow-x: auto; }
}

/* 窄屏硬约束：正文里的长链接（资料引用原 URL）在 320px 会把页面撑出横向滚动 */
body { overflow-wrap: break-word; }
.body a, .src a, .meta a, footer a { word-break: break-word; overflow-wrap: anywhere; }
.nav small { font-size: 12px; }

/* 触控目标：平台模板的页脚/分页/来源链接太小，用负 margin 补足 44px 高度
   而不改变原有视觉间距；导航链接随 64px 导航条撑满高度 */
.nav a { align-self: stretch; display: flex; align-items: center; }
summary { min-height: 44px; box-sizing: border-box; }
footer a, .pager a, .src a, .meta a {
  display: inline-block; padding: 12px 9px; margin: -12px -9px;
}