/* 云略官网 · 深度洞察 / 服务页 / 案例页 / 静态文章页
   由 tools/seo_build.py 生成页面时引用。只新增样式，不修改既有 assets 文件。 */

:root {
  --yl-paper: #f2efe9;
  --yl-surface: #ffffff;
  --yl-ink: #1c2326;
  --yl-muted: #5d6a68;
  --yl-brand: #064b6a;
  --yl-brand-deep: #073e4a;
  --yl-line: #d7d8d0;
  --yl-copper: #b7835e;
  --yl-teal: #8fa9a1;
  --yl-font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

body.yl-body,
body.yl-body.article-detail-page,
body.yl-body.insights-page {
  margin: 0;
  background: var(--yl-paper);
  color: var(--yl-ink);
  font-family: var(--yl-font);
  -webkit-font-smoothing: antialiased;
}

/* ---------- 顶部导航（深色，覆盖 articles.css 的 nav 约束） ---------- */
.yl-nav { position: sticky; top: 0; z-index: 60; background: var(--yl-brand-deep); border-bottom: 1px solid rgba(255, 255, 255, .12); }
.yl-nav nav { width: min(1440px, calc(100% - 96px)); height: 76px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.yl-nav .brand img { display: block; width: 172px; height: auto; }
.yl-nav .nav-links { display: flex; align-items: center; gap: 22px; margin: 0; }
.yl-nav .nav-links a { color: rgba(255, 255, 255, .76); font-size: 15px; font-weight: 500; line-height: 40px; white-space: nowrap; }
.yl-nav .nav-links a:hover,
.yl-nav .nav-links a:focus-visible,
.yl-nav .nav-links a[aria-current="page"] { color: #fff; }
.yl-nav .nav-links a[aria-current="page"] { box-shadow: inset 0 -2px 0 #fff; }
.yl-nav .nav-cta { padding: 0 16px; border: 1px solid rgba(255, 255, 255, .38); border-radius: 999px; line-height: 36px; margin-left: 4px; }
.yl-nav .nav-cta:hover { background: rgba(255, 255, 255, .12); }
.yl-nav .menu { display: none; width: 44px; height: 44px; border: 0; background: transparent; color: #fff; font-size: 22px; }

.yl-wrap { width: min(1120px, calc(100% - 96px)); margin: 0 auto; padding: 28px 0 0; }
.yl-doc-wrap { padding-bottom: 0; }

/* ---------- 面包屑 ---------- */
.yl-crumb { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-start; gap: 8px; margin: 0 0 26px; font-size: 13px; line-height: 1.6; color: var(--yl-muted); }
.yl-crumb > * { flex: 0 0 auto; }
.yl-crumb a { color: var(--yl-muted); text-decoration: none; }
.yl-crumb a:hover { color: var(--yl-brand); text-decoration: underline; }
.yl-crumb i { font-style: normal; opacity: .5; flex: 0 0 auto; }
.yl-crumb span[aria-current] { color: var(--yl-ink); }
.detail-article .yl-crumb { width: min(1120px, calc(100% - 96px)); margin: 22px auto 0; }

/* ---------- 列表页 / 文档页 Hero ---------- */
.yl-page-hero { max-width: 880px; margin: 0 0 40px; }
.yl-eyebrow { margin: 0 0 14px; font-size: 12px; letter-spacing: .16em; color: var(--yl-brand); text-transform: uppercase; font-weight: 600; }
.yl-page-hero h1,
.yl-doc-hero h1 { margin: 0 0 18px; font-size: clamp(30px, 3.6vw, 46px); line-height: 1.22; letter-spacing: -.01em; color: var(--yl-ink); font-weight: 700; }
.yl-lead { margin: 0; font-size: clamp(16px, 1.35vw, 18px); line-height: 1.8; color: var(--yl-muted); }
.yl-chip-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 0; padding: 0; list-style: none; }
.yl-chip-list li { padding: 6px 12px; border: 1px solid var(--yl-line); border-radius: 999px; background: rgba(255, 255, 255, .6); font-size: 13px; color: var(--yl-muted); }
.yl-section-label { margin: 0 0 18px; font-size: 13px; letter-spacing: .14em; color: var(--yl-muted); text-transform: uppercase; font-weight: 600; }

/* ---------- 文章列表（静态 HTML，不依赖 JS） ---------- */
.yl-article-list,
.yl-case-list { display: grid; gap: 18px; margin: 0 0 56px; padding: 0; list-style: none; }
.yl-article-card { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 28px; padding: 22px; background: var(--yl-surface); border: 1px solid var(--yl-line); border-radius: 14px; transition: transform .25s ease, box-shadow .25s ease; }
.yl-article-card:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(7, 62, 74, .1); }
.yl-article-cover { display: block; position: relative; overflow: hidden; border-radius: 10px; background: var(--yl-brand-deep); aspect-ratio: 16 / 10; }
.yl-article-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.yl-article-cover .article-crop { position: absolute; inset: 0; display: block; overflow: hidden; border-radius: 10px; }
.yl-article-cover .article-poster { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center; gap: 6px; padding: 18px; color: #fff; }
.yl-article-cover .article-poster small { font-size: 10px; letter-spacing: .18em; opacity: .7; }
.yl-article-cover .article-poster strong { font-size: 20px; }
.yl-article-cover .article-poster .poster-caption { font-size: 12px; opacity: .75; }
.yl-article-text { display: flex; flex-direction: column; min-width: 0; }
.yl-article-meta { display: flex; flex-wrap: wrap; gap: 8px 14px; margin: 0 0 10px; font-size: 12.5px; color: var(--yl-muted); }
.yl-article-meta span:first-child { color: var(--yl-brand); font-weight: 600; }
.yl-article-text h2 { margin: 0 0 10px; font-size: clamp(19px, 1.7vw, 23px); line-height: 1.4; font-weight: 700; }
.yl-article-text h2 a { color: var(--yl-ink); text-decoration: none; }
.yl-article-text h2 a:hover { color: var(--yl-brand); }
.yl-article-summary { margin: 0 0 14px; font-size: 15px; line-height: 1.75; color: var(--yl-muted); }
.yl-article-more { margin-top: auto; align-self: flex-start; font-size: 14px; font-weight: 600; color: var(--yl-brand); text-decoration: none; border-bottom: 1px solid currentColor; }
.yl-case-card { padding: 26px 28px; background: var(--yl-surface); border: 1px solid var(--yl-line); border-radius: 14px; }
.yl-case-card h2 { margin: 0 0 10px; font-size: clamp(19px, 1.7vw, 22px); line-height: 1.42; }
.yl-case-card h2 a { color: var(--yl-ink); text-decoration: none; }
.yl-case-card h2 a:hover { color: var(--yl-brand); }

/* ---------- 静态文章页 ---------- */
.article-detail-page.yl-body { background: var(--yl-paper); }
.yl-body .detail-article { width: 100%; }
.yl-body .detail-header { width: 100%; }
.yl-byline { margin: 22px auto 0; max-width: min(1120px, calc(100% - 96px)); font-size: 13px; line-height: 1.8; color: var(--yl-muted); }
.yl-byline time { color: var(--yl-ink); }
.yl-body .detail-content { min-height: 0; }

/* ---------- 内容文档页（服务 / 案例） ---------- */
.yl-doc-hero { max-width: 900px; margin: 0 0 44px; }
.yl-doc-body { max-width: 900px; padding: 0 0 8px; font-size: 16.5px; line-height: 1.85; color: #2a3235; }
.yl-doc-body h2 { margin: 52px 0 16px; font-size: clamp(22px, 2.2vw, 28px); line-height: 1.35; color: var(--yl-ink); }
.yl-doc-body h3 { margin: 0 0 8px; font-size: 17px; line-height: 1.45; }
.yl-doc-body p { margin: 0 0 16px; }
.yl-doc-body a { color: var(--yl-brand); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.yl-doc-body a:hover { color: var(--yl-brand-deep); }
.yl-doc-body ul,
.yl-doc-body ol { margin: 0 0 18px; padding-left: 1.35em; }
.yl-doc-body li { margin: 8px 0; }
.yl-doc-body strong { color: var(--yl-ink); }
.yl-block { margin: 0; }

.yl-table-wrap { overflow-x: auto; margin: 18px 0 26px; border: 1px solid var(--yl-line); border-radius: 12px; background: var(--yl-surface); }
.yl-table-wrap table { width: 100%; border-collapse: collapse; font-size: 14.5px; line-height: 1.7; }
.yl-table-wrap th,
.yl-table-wrap td { padding: 13px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--yl-line); min-width: 120px; }
.yl-table-wrap thead th { background: #eef2ef; color: var(--yl-ink); font-weight: 600; white-space: nowrap; }
.yl-table-wrap tbody tr:last-child td { border-bottom: 0; }
.yl-table-wrap td:first-child { color: var(--yl-brand); font-weight: 600; }

.yl-steps { display: grid; gap: 12px; margin: 18px 0 26px; padding: 0; list-style: none; counter-reset: none; }
.yl-steps li { display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: 16px; padding: 18px 20px; background: var(--yl-surface); border: 1px solid var(--yl-line); border-radius: 12px; }
.yl-steps li > span { font-size: 22px; font-weight: 700; color: var(--yl-copper); line-height: 1.2; }
.yl-steps li p { margin: 0; font-size: 15px; color: var(--yl-muted); }

.yl-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 18px 0 26px; }
.yl-cards article { padding: 18px 20px; background: var(--yl-surface); border: 1px solid var(--yl-line); border-radius: 12px; }
.yl-cards article p { margin: 0; font-size: 14.5px; color: var(--yl-muted); }

.yl-faq { display: grid; gap: 10px; margin: 16px 0 26px; }
.yl-faq-item { background: var(--yl-surface); border: 1px solid var(--yl-line); border-radius: 12px; }
.yl-faq-item summary { padding: 16px 20px; cursor: pointer; font-weight: 600; font-size: 16px; list-style: none; }
.yl-faq-item summary::-webkit-details-marker { display: none; }
.yl-faq-item summary::after { content: "＋"; float: right; color: var(--yl-teal); font-weight: 400; }
.yl-faq-item[open] summary::after { content: "－"; }
.yl-faq-item > div { padding: 0 20px 16px; }

.yl-related-list { display: grid; gap: 10px; margin: 16px 0 26px; padding: 0; list-style: none; }
.yl-related { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--yl-line); }
.yl-related-list li a { display: block; padding: 13px 18px; background: var(--yl-surface); border: 1px solid var(--yl-line); border-radius: 10px; text-decoration: none; font-size: 15px; color: var(--yl-ink); }
.yl-related-list li a:hover { border-color: var(--yl-brand); color: var(--yl-brand); }
.yl-related h2 { margin: 0 0 4px; font-size: 20px; }

/* ---------- 翻页与 CTA ---------- */
.yl-pager { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 36px 0 0; }
.yl-pager a { display: flex; flex-direction: column; gap: 6px; padding: 16px 18px; background: var(--yl-surface); border: 1px solid var(--yl-line); border-radius: 12px; text-decoration: none; }
.yl-pager a:last-child { text-align: right; }
.yl-pager a:hover { border-color: var(--yl-brand); }
.yl-pager small { color: var(--yl-muted); font-size: 12px; }
.yl-pager strong { font-size: 15px; line-height: 1.5; color: var(--yl-ink); }

.yl-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; margin: 44px 0 64px; padding: 28px 30px; background: var(--yl-brand-deep); color: #fff; border-radius: 16px; }
.yl-cta > div { flex: 1 1 380px; }
.yl-cta h2 { margin: 0 0 8px; font-size: clamp(19px, 1.8vw, 23px); line-height: 1.4; }
.yl-cta p { margin: 0; font-size: 14.5px; line-height: 1.75; color: rgba(255, 255, 255, .78); }
.yl-cta-btn { display: inline-flex; align-items: center; padding: 12px 22px; background: #fff; color: var(--yl-brand-deep); border-radius: 999px; font-weight: 600; font-size: 15px; text-decoration: none; }
.yl-cta-btn:hover { background: var(--yl-paper); }
.yl-cta-link { color: rgba(255, 255, 255, .86); font-size: 14px; text-decoration: none; border-bottom: 1px solid rgba(255, 255, 255, .5); }

/* ---------- 页脚 ---------- */
.yl-footer { background: #0d2229; color: rgba(255, 255, 255, .78); padding: 52px 0 26px; }
.yl-footer .wrap { width: min(1120px, calc(100% - 96px)); margin: 0 auto; }
.yl-footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 34px; }
.yl-footer-brand img { display: block; width: 178px; height: auto; margin: 0 0 18px; }
.yl-footer-brand p { margin: 0 0 8px; font-size: 14px; line-height: 1.7; }
.yl-footer-brand strong { color: #fff; }
.yl-footer-note { font-size: 12.5px !important; color: rgba(255, 255, 255, .55); margin-top: 10px !important; }
.yl-footer-col h2 { margin: 0 0 14px; font-size: 13px; letter-spacing: .12em; color: #fff; font-weight: 600; }
.yl-footer-col ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 9px; }
.yl-footer-col a { color: rgba(255, 255, 255, .72); font-size: 13.5px; text-decoration: none; }
.yl-footer-col a:hover { color: #fff; text-decoration: underline; }
.yl-footer-contact p { margin: 0 0 9px; font-size: 13.5px; line-height: 1.65; }
.yl-footer-contact a { color: #fff; font-size: 17px; font-weight: 600; text-decoration: none; }
.yl-footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; margin-top: 40px; padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, .14); font-size: 12.5px; color: rgba(255, 255, 255, .5); }

/* ---------- 响应式 ---------- */
@media (max-width: 1180px) {
  .yl-nav .nav-links { gap: 15px; }
  .yl-nav .nav-links a { font-size: 14px; }
}

@media (max-width: 1080px) {
  .yl-nav .menu { display: block; }
  .yl-nav .nav-links { display: none; }
  .yl-nav .nav-links.open {
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    position: absolute; top: 76px; left: 0; right: 0;
    padding: 10px 20px 18px; background: var(--yl-brand-deep);
    border-bottom: 1px solid rgba(255, 255, 255, .14);
  }
  .yl-nav .nav-links.open a { line-height: 46px; border-bottom: 1px solid rgba(255, 255, 255, .08); }
  .yl-nav .nav-links.open .nav-cta { margin: 14px 0 0; text-align: center; border-bottom: 1px solid rgba(255, 255, 255, .38); }
}

@media (max-width: 860px) {
  .yl-wrap,
  .yl-footer .wrap { width: calc(100% - 36px); }
  .yl-nav nav { width: calc(100% - 36px); height: 66px; }
  .yl-nav .brand img { width: 136px; }
  .yl-nav .nav-links.open { top: 66px; }
  .detail-article .yl-crumb { width: calc(100% - 36px); }
  .yl-byline { max-width: none; width: calc(100% - 36px); }
  .yl-article-card { grid-template-columns: 1fr; gap: 16px; padding: 16px; }
  .yl-article-cover { aspect-ratio: 16 / 9; }
  .yl-cards { grid-template-columns: 1fr; }
  .yl-steps li { grid-template-columns: 40px minmax(0, 1fr); padding: 15px 16px; }
  .yl-pager { grid-template-columns: 1fr; }
  .yl-cta { padding: 22px 20px; margin-bottom: 44px; }
  .yl-footer-grid { grid-template-columns: 1fr 1fr; }
  .yl-footer-brand { grid-column: 1 / -1; }
  .yl-doc-body { font-size: 16px; }
  .yl-doc-body h2 { margin-top: 40px; }
}