.guides-library,
.article-shell {
  width: min(1080px, calc(100% - 48px));
  margin: 0 auto;
  padding: 60px 0 90px;
}

.guides-heading { max-width: 700px; margin-bottom: 38px; }
.guides-heading h1,
.article-header h1 {
  margin: 0;
  font-size: clamp(36px, 4.5vw, 54px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.045em;
  text-wrap: pretty;
}
.guides-heading h1 { font-size: clamp(44px, 5vw, 62px); }
.guides-heading > p,
.article-lead { margin: 22px 0 0; color: var(--muted-strong); font-size: 18px; line-height: 1.65; }
.guide-topics { display: flex; flex-wrap: wrap; gap: 12px 30px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.guide-topics a { color: var(--muted-strong); font-size: 14px; font-weight: 500; }
.guide-topics a:hover,
.article-breadcrumbs a:hover { color: var(--blue-deep); }
.guide-category { padding-top: 46px; scroll-margin-top: calc(var(--header-reserved) + 18px); }
.guide-category-heading { margin-bottom: 24px; }
.guide-category-heading h2 { margin: 0; font-size: 27px; font-weight: 600; letter-spacing: -0.035em; }
.guide-category-heading p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.guide-card { min-width: 0; }
.guide-card > a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 126px;
  align-items: center;
  gap: 24px;
  height: 100%;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}
.guide-card > a:hover { border-color: rgba(22, 119, 243, 0.35); box-shadow: 0 8px 26px rgba(35, 61, 98, 0.06); }
.guide-card-meta { color: var(--muted); font-size: 12px; }
.guide-card h3 { margin: 9px 0 0; font-size: 22px; font-weight: 600; line-height: 1.2; letter-spacing: -0.035em; text-wrap: pretty; }
.guide-card p { margin: 12px 0 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.guide-card-open { display: flex; align-items: center; gap: 10px; margin-top: 18px; color: var(--blue-deep); font-size: 13px; font-weight: 600; }
.guide-card-visual { display: grid; place-items: center; min-height: 168px; padding: 10px; overflow: hidden; border-radius: 12px; color: var(--blue); background: linear-gradient(145deg, #eaf2fc, #f0f8f9); }
.guide-card-visual img { width: 100%; height: 148px; object-fit: contain; filter: drop-shadow(0 5px 7px rgba(35, 61, 98, 0.12)); }
.guide-card-visual svg { width: 48px; height: 48px; }
.guides-help { margin: 42px 0 0; color: var(--muted); font-size: 14px; }
.guides-help a { color: var(--blue-deep); }

.article-breadcrumbs { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 34px; color: var(--muted); font-size: 13px; }
.article-header { max-width: 780px; margin-bottom: 48px; }
.article-header .feature-label { margin-bottom: 16px; }
.article-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; margin-top: 23px; color: var(--muted); font-size: 13px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 720px) minmax(0, 230px); gap: 78px; align-items: start; }
.article-toc { position: sticky; top: calc(var(--header-reserved) + 28px); grid-column: 2; grid-row: 1; border-left: 1px solid var(--line); padding-left: 22px; }
.article-toc strong { font-size: 13px; font-weight: 600; }
.article-toc ol { display: grid; gap: 13px; margin: 18px 0 0; padding: 0; list-style: none; }
.article-toc a { display: block; color: var(--muted); font-size: 13px; line-height: 1.55; }
.article-toc a:hover { color: var(--blue-deep); }
.article-toc .article-back { margin-top: 25px; color: var(--blue-deep); }
.article-content { grid-column: 1; grid-row: 1; min-width: 0; }
.article-content > section { margin-bottom: 42px; scroll-margin-top: calc(var(--header-reserved) + 28px); }
.article-content h2 { margin: 0 0 18px; font-size: 28px; font-weight: 600; line-height: 1.25; letter-spacing: -0.035em; text-wrap: pretty; }
.article-content p,
.article-content li { color: var(--muted-strong); font-size: 16px; line-height: 1.85; }
.article-content p { margin: 0 0 18px; }
.article-content strong { color: #2a3441; font-weight: 600; }
.article-content p a,
.article-content li a { color: var(--blue-deep); text-decoration: underline; text-decoration-color: rgba(22, 119, 243, 0.28); text-underline-offset: 3px; }
.article-content ol,
.article-content ul { display: grid; gap: 12px; margin: 22px 0; padding-left: 24px; }
.article-content li { padding-left: 5px; }
.article-content li::marker { color: var(--blue-deep); font-weight: 500; }
.article-note { margin: 26px 0; padding: 20px 24px; border-left: 3px solid rgba(22, 119, 243, 0.55); border-radius: 0 12px 12px 0; background: #eaf2fc; }
.article-note > strong { display: block; margin-bottom: 7px; font-size: 15px; }
.article-note p { margin: 0; font-size: 14px; line-height: 1.75; }
.article-figure,
.article-diagram { margin: 28px 0; }
.article-image { display: grid; place-items: center; padding: 28px; border: 1px solid var(--line); border-radius: 16px; background: linear-gradient(140deg, #eef4fc, #f3f8fa); }
.article-image img { width: auto; max-width: 100%; height: auto; max-height: 390px; margin: auto; object-fit: contain; filter: drop-shadow(0 10px 14px rgba(35, 61, 98, 0.13)); }
.article-image .screenshot-link { width: fit-content; max-width: 100%; height: auto; }
.article-image .screenshot-link::after { display: none; }
.article-figure-panel .article-image img { max-height: 320px; }
.article-figure figcaption,
.article-diagram figcaption { margin-top: 12px; color: var(--muted); font-size: 12px; line-height: 1.6; }
.article-figure figcaption span { display: block; margin-top: 3px; color: var(--blue-deep); }
.sync-diagram,
.data-diagram { display: flex; align-items: center; justify-content: center; gap: 24px; padding: 32px 24px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); }
.sync-diagram > span { display: grid; justify-items: center; gap: 12px; text-align: center; }
.sync-diagram svg,
.data-diagram svg { width: 48px; height: 48px; color: var(--blue); }
.sync-diagram b { color: var(--muted-strong); font-size: 13px; font-weight: 500; }
.diagram-connection { color: var(--blue); font-size: 22px; }
.data-diagram > span { flex: 0 0 auto; }
.data-diagram strong { font-size: 16px; }
.data-diagram p { margin: 8px 0 0; font-size: 14px; line-height: 1.7; }
.article-download { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--line); }
.article-download strong { font-size: 16px; }
.article-download p { margin: 5px 0 0; color: var(--muted); font-size: 13px; }
.article-download .button { flex: 0 0 auto; font-size: 14px; }
.article-related { margin-top: 72px; padding-top: 32px; border-top: 1px solid var(--line); }
.article-related h2 { margin: 0 0 22px; font-size: 24px; letter-spacing: -0.03em; }
.article-related > div { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.article-related a { display: grid; grid-template-columns: 1fr auto; gap: 8px 20px; padding: 22px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.article-related a > span { grid-column: 1; color: var(--muted); font-size: 12px; }
.article-related strong { grid-column: 1; font-size: 19px; font-weight: 600; line-height: 1.35; letter-spacing: -0.025em; }
.article-related b { grid-column: 2; grid-row: 1 / 3; align-self: center; color: var(--blue-deep); font-weight: 400; }
.article-related a:hover { border-color: rgba(22, 119, 243, 0.35); }
.guides-library a:focus-visible,
.article-shell a:focus-visible { outline: 3px solid rgba(22, 119, 243, 0.4); outline-offset: 5px; border-radius: 3px; }

@media (max-width: 1000px) {
  .guide-card > a { grid-template-columns: minmax(0, 1fr) 100px; gap: 18px; padding: 22px; }
  .article-layout { gap: 38px; grid-template-columns: minmax(0, 1fr) 200px; }
}
@media (max-width: 760px) {
  .guides-library,
  .article-shell { width: calc(100% - 40px); padding-top: 38px; padding-bottom: 60px; }
  .guide-grid { grid-template-columns: 1fr; gap: 14px; }
  .guide-card > a { grid-template-columns: minmax(0, 1fr) 126px; }
  .article-layout { display: flex; flex-direction: column; gap: 32px; }
  .article-toc { position: static; width: 100%; padding: 20px 0; border-left: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .article-toc ol { grid-template-columns: 1fr 1fr; column-gap: 24px; }
  .article-toc .article-back { display: none; }
  .article-header { margin-bottom: 30px; }
  .article-breadcrumbs { margin-bottom: 26px; }
  .article-related > div { gap: 14px; }
}
@media (max-width: 480px) {
  .guide-card > a { grid-template-columns: minmax(0, 1fr) 84px; gap: 16px; padding: 20px; }
  .guide-card h3 { font-size: 21px; }
  .guide-card-visual { min-height: 126px; padding: 6px; }
  .guide-card-visual img { height: 114px; }
  .guide-card-visual svg { width: 36px; height: 36px; }
  .guide-topics { gap: 12px 22px; }
  .guide-topics a { font-size: 13px; }
  .guide-category-heading h2 { font-size: 25px; }
  .article-header h1 { font-size: 36px; }
  .article-lead { font-size: 17px; }
  .article-meta { gap: 7px; font-size: 12px; }
  .article-toc ol { grid-template-columns: 1fr; gap: 10px; }
  .article-content h2 { font-size: 26px; }
  .article-content p,
  .article-content li { font-size: 15px; }
  .article-image { padding: 20px; }
  .article-image img { max-height: 340px; }
  .article-note { padding: 18px; }
  .article-note p { font-size: 14px; }
  .sync-diagram { gap: 10px; padding: 24px 12px; }
  .sync-diagram svg { width: 36px; height: 36px; }
  .sync-diagram b { font-size: 11px; }
  .data-diagram { gap: 18px; padding: 24px 18px; }
  .data-diagram p { font-size: 12px; }
  .article-download { align-items: flex-start; flex-direction: column; gap: 18px; }
  .article-related > div { grid-template-columns: 1fr; }
}