/* 教程列表、分类页与文章详情。配色、按钮、卡片和页头页脚沿用 storefront.css，这里只放教程页自己的版式。 */
.articles-page,.article-page{padding:36px 0 96px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;font-size:13px;color:var(--muted);margin-bottom:28px}
.breadcrumb a:hover{color:var(--ink);text-decoration:underline}
.breadcrumb [aria-current]{color:var(--ink-2);max-width:40em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 列表页 */
.list-head{margin-bottom:28px}
.list-head h1{font-size:clamp(34px,4.6vw,56px);line-height:1.15;font-weight:900;letter-spacing:-.015em}
.list-head .sec-lede{max-width:40em}
.cat-bar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.cat-bar a{border:1.5px solid var(--ink);border-radius:999px;padding:6px 16px;font-size:14px;font-weight:700;transition:background .2s,color .2s}
.cat-bar a:hover{background:var(--card)}
.cat-bar a.is-active{background:var(--ink);color:var(--paper)}
.pager{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;margin-top:40px}
.pager a{justify-self:start;border:2px solid var(--ink);border-radius:10px;padding:10px 18px;font-weight:800;background:var(--card)}
.pager a[rel="next"]{justify-self:end}
.pager a:hover{background:var(--yellow)}
.pager-no{font-family:var(--mono);font-size:14px;color:var(--muted)}

/* 详情页：正文 + 右侧目录 */
.article-layout{display:grid;grid-template-columns:minmax(0,760px);justify-content:center;gap:56px}
.article-layout.has-toc{grid-template-columns:minmax(0,760px) 240px}
.article-head{display:grid;gap:14px;margin-bottom:28px}
.article-head h1{font-size:clamp(28px,3.8vw,42px);line-height:1.3;font-weight:900;letter-spacing:-.01em}
.article-meta{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:13px;color:var(--muted)}
.article-summary{font-size:17px;color:var(--ink-2);border-left:4px solid var(--yellow);padding:2px 0 2px 16px}
.article-cover{margin:0 0 28px}
.article-cover img{width:100%;border-radius:var(--radius);border:1px solid var(--line)}

.article-body{font-size:16.5px;line-height:1.9;color:var(--ink-2);overflow-wrap:anywhere}
.article-body>*+*{margin-top:16px}
.article-body h2,.article-body h3,.article-body h4{color:var(--ink);line-height:1.4;scroll-margin-top:90px}
.article-body h2{font-size:26px;font-weight:900;margin-top:48px;padding-top:4px}
.article-body h2::before{content:"";display:block;width:32px;height:4px;background:var(--yellow);margin-bottom:14px}
.article-body h3{font-size:20px;font-weight:800;margin-top:36px}
.article-body h4{font-size:17px;font-weight:800;margin-top:28px}
.article-body strong{color:var(--ink);font-weight:800}
.article-body a{color:var(--ink);font-weight:600;text-decoration:underline;text-decoration-color:var(--yellow);text-decoration-thickness:3px;text-underline-offset:3px}
.article-body a:hover{background:var(--yellow-2)}
.article-body ul,.article-body ol{padding-left:1.5em}
.article-body li+li{margin-top:6px}
.article-body li>ul,.article-body li>ol{margin-top:6px}
.article-body code{font-family:var(--mono);font-size:.88em;background:var(--paper-2);border-radius:5px;padding:1px 6px}
.article-body pre{background:var(--ink);color:#e6ebf3;border-radius:12px;padding:18px 20px;overflow-x:auto;line-height:1.65}
.article-body pre code{background:none;padding:0;font-size:14px;color:inherit}
.article-body blockquote{border-left:4px solid var(--ink);background:var(--card);border-radius:0 12px 12px 0;padding:14px 18px;color:var(--ink-2)}
.article-body blockquote>*+*{margin-top:10px}
.article-body hr{border:0;border-top:2px dashed var(--line);margin:36px 0}
.article-body figure{margin:28px 0}
.article-body img{border-radius:12px;border:1px solid var(--line);margin-inline:auto;height:auto}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--muted)}
.table-scroll{overflow-x:auto;border:1.5px solid var(--ink);border-radius:12px;background:var(--card)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.6}
.article-body th{background:var(--ink);color:var(--paper);font-weight:800;text-align:left;padding:10px 14px;white-space:nowrap}
.article-body td{padding:10px 14px;border-top:1px solid var(--line)}
.article-body .ta-r{text-align:right}
.article-body .ta-c{text-align:center}

.toc-side{position:relative}
.toc-side .toc{position:sticky;top:96px;max-height:calc(100vh - 120px);overflow:auto;border-left:2px solid var(--line);padding:4px 0 4px 16px}
.toc-title{font-family:var(--mono);font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--muted);margin-bottom:10px}
.toc ol{list-style:none;display:grid;gap:8px;font-size:14px;line-height:1.5}
.toc a{color:var(--ink-2)}
.toc a:hover{color:var(--ink);text-decoration:underline;text-decoration-color:var(--yellow);text-decoration-thickness:2px}
.toc .toc-l3{padding-left:14px;font-size:13px}
.toc-mobile{display:none;margin-bottom:24px;background:var(--card);border:1.5px solid var(--line);border-radius:12px;padding:12px 16px}
.toc-mobile summary{cursor:pointer;font-weight:800}
.toc-mobile ol{margin-top:12px}

/* 上一篇 / 下一篇 */
.article-adjacent{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:48px;padding-top:28px;border-top:2px dashed var(--line)}
.adjacent-link{display:flex;flex-direction:column;gap:6px;min-width:0;background:var(--card);border:1.5px solid var(--line);border-radius:var(--radius);padding:16px 18px;transition:border-color .2s,box-shadow .2s,transform .2s}
.adjacent-link.is-next{text-align:right;align-items:flex-end}
a.adjacent-link:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:4px 4px 0 var(--ink)}
.adjacent-label{font-family:var(--mono);font-size:12px;font-weight:800;letter-spacing:.06em;color:var(--muted)}
.adjacent-title{font-size:15px;font-weight:800;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.adjacent-link.is-empty{background:transparent;border-style:dashed}
.adjacent-link.is-empty .adjacent-title{color:var(--muted);font-weight:600}

/* 文末下单引导与推荐阅读 */
.article-cta{display:flex;align-items:center;justify-content:space-between;gap:24px 40px;flex-wrap:wrap;margin:64px auto 0;max-width:1056px;background:var(--ink);color:var(--paper);border-radius:18px;padding:30px 36px;border-bottom:4px solid var(--yellow)}
.article-cta h2{font-size:24px;font-weight:900;margin:6px 0}
.article-cta p{color:#c9d3e2;font-size:15px}
.article-cta .cta-kicker{font-family:var(--mono);font-size:13px;font-weight:800;letter-spacing:.06em;color:var(--yellow)}
.article-cta .btn-solid{background:var(--yellow);color:var(--ink);border-color:var(--yellow);box-shadow:4px 4px 0 rgba(255,255,255,.18)}
.article-cta .btn-solid:hover{box-shadow:6px 6px 0 rgba(255,255,255,.24)}
.article-cta .btn-price{background:var(--ink);color:var(--yellow)}
.related{margin:64px auto 0;max-width:1056px}
.related h2{font-size:clamp(24px,3vw,32px);font-weight:900;margin-bottom:22px}
.article-layout+.article-cta,.related{width:100%}

@media (max-width:1100px){
  .article-layout.has-toc{grid-template-columns:minmax(0,760px)}
  .toc-side{display:none}
  .toc-mobile{display:block}
}
@media (max-width:640px){
  .articles-page,.article-page{padding:22px 0 72px}
  .breadcrumb{margin-bottom:18px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:22px;margin-top:40px}
  .article-body h3{font-size:18px}
  .article-cta{padding:24px 20px;margin-top:48px}
  .article-cta .btn{width:100%}
  .related{margin-top:48px}
  .pager a{padding:8px 12px;font-size:14px}
  .article-adjacent{grid-template-columns:1fr;margin-top:36px}
  .adjacent-link.is-next{text-align:left;align-items:flex-start}
}

/* 固定页面 /plus、/pro、/pricing、/refund、/about（2026-09-29）：价签沿用首页样式，放在正文栏外；末尾联系客服区。 */
.site-page .page-plans{margin:18px 0 22px}
.page-contact{margin-top:40px;padding:24px;border-radius:16px;background:#fff;border:1px solid rgba(11,24,48,.1)}
.page-contact h2{font-size:20px;margin:0 0 6px}
.page-contact p{margin:0;font-size:14px;opacity:.8}
.page-qr{display:flex;flex-wrap:wrap;gap:18px;margin-top:16px}
.page-qr figure{margin:0;text-align:center;font-size:13px;opacity:.85}
.page-qr img{display:block;width:160px;height:160px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid rgba(11,24,48,.1);margin-bottom:6px}
@media (max-width:640px){.page-qr img{width:136px;height:136px}}