/* ==========================================================================
   VPNAN - 深度指南页专属样式
   ========================================================================== */

.article-prose {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 0 20px;
}

.page-head {
  margin-bottom: 28px;
}

.page-head .badge {
  margin-bottom: 12px;
}

.page-head h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 4.5vw, 44px);
  line-height: 1.18;
  letter-spacing: -.02em;
  margin: 14px 0 14px;
}

.page-lead {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 40em;
}

.article-prose section[id] {
  scroll-margin-top: calc(var(--header-h) + 60px);
}

.article-prose h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 25px;
  line-height: 1.32;
  letter-spacing: -.015em;
  margin: 52px 0 16px;
  padding-top: 6px;
}

.article-prose h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18.5px;
  line-height: 1.42;
  margin: 28px 0 10px;
}

.article-prose p {
  font-size: 15px;
  line-height: 1.88;
  color: var(--text);
  margin-bottom: 14px;
}

.article-prose ul,
.article-prose ol {
  margin: 0 0 16px;
  padding-left: 22px;
}

.article-prose li {
  font-size: 14.5px;
  line-height: 1.82;
  margin-bottom: 6px;
}

.article-prose li::marker {
  color: var(--accent);
}

.article-prose .callout {
  margin: 22px 0;
}

.article-prose .table-scroll {
  margin: 22px 0;
}

.article-prose .promo-block {
  margin: 52px 0 24px;
}

.article-prose .toc-tabs {
  margin-bottom: 8px;
}

.article-prose strong {
  color: var(--text);
  font-weight: 700;
}

.article-prose em {
  font-style: normal;
  font-weight: 600;
  color: var(--accent-dark);
}

/* 步骤列表的自定义序号 */
.article-prose ol.steps {
  list-style: none;
  counter-reset: step;
  padding-left: 0;
}

.article-prose ol.steps li {
  counter-increment: step;
  position: relative;
  padding-left: 40px;
  margin-bottom: 14px;
  min-height: 26px;
}

.article-prose ol.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--tint-accent);
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent);
}

@media (max-width: 768px) {
  .article-prose {
    padding: 28px 0 12px;
  }

  .article-prose h2 {
    font-size: 21px;
    margin-top: 38px;
  }

  .article-prose h3 {
    font-size: 17px;
    margin-top: 22px;
  }

  .article-prose p {
    font-size: 14.5px;
  }

  .article-prose .page-head h1 {
    font-size: 28px;
  }
}