:root {
  --brand: #468fde;
  --brand-2: #0cc0b9;
  --text: #333;
  --muted: #797979;
  --line: #e3e6ea;
  --bg: #f8f8f8;
  --card: #fff;
  --code-bg: #1f2633;
  --code-fg: #e6edf3;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.65 'Open Sans', -apple-system, 'Segoe UI', Roboto, Arial, sans-serif; color: var(--text); background: var(--bg); }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }
.wrap { max-width: 1100px; margin: 0 auto; padding: 0 16px; }

.top { background: #fff; border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.logo img { display: block; height: 36px; width: auto; }
.kb-title { font-weight: 700; color: var(--text); font-size: 18px; padding-left: 16px; border-left: 2px solid var(--brand-2); }
.lang { margin-left: auto; display: flex; gap: 4px; }
.lang a { padding: 4px 8px; border-radius: 4px; font-size: 13px; font-weight: 600; color: var(--muted); }
.lang a[aria-current] { background: var(--brand); color: #fff; }
.cats { display: flex; gap: 4px; overflow-x: auto; padding-bottom: 10px; scrollbar-width: thin; }
.cats a { white-space: nowrap; padding: 6px 12px; border-radius: 16px; font-size: 14px; color: var(--text); background: var(--bg); }
.cats a[aria-current] { background: var(--brand); color: #fff; }

main { padding-top: 24px; padding-bottom: 48px; min-height: 60vh; }
h1 { font-size: 30px; line-height: 1.25; margin: 0 0 12px; }
.intro { color: var(--muted); margin: 0 0 20px; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; display: flex; flex-direction: column; }
.card .thumb img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.card-body { padding: 14px 16px 18px; }
.card h2 { font-size: 18px; line-height: 1.35; margin: 6px 0 8px; }
.card h2 a { color: var(--text); }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.meta { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; color: var(--muted); font-size: 13px; margin: 0 0 12px; }
.chip { display: inline-block; padding: 2px 10px; border-radius: 12px; background: #eaf3fc; color: var(--brand); font-size: 12px; font-weight: 600; }

.pager { display: flex; justify-content: space-between; align-items: center; margin-top: 28px; color: var(--muted); font-size: 14px; }

.crumbs { font-size: 14px; color: var(--muted); margin-bottom: 12px; }
.post { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 28px 32px; max-width: 860px; }
.post .hero { display: block; border-radius: 6px; margin: 0 0 20px; }
.content h2 { font-size: 23px; margin: 28px 0 10px; }
.content h3 { font-size: 19px; margin: 22px 0 8px; }
.content img { display: block; margin: 20px 0; border-radius: 4px; }
.content img.aligncenter, .content .aligncenter img { margin-left: auto; margin-right: auto; }
.content img.alignright { margin-left: auto; }
.content p > img:first-child { margin-top: 4px; }
.content p > img:last-child { margin-bottom: 4px; }
.content a > img { display: block; }
.content .wp-caption { max-width: 100%; margin: 20px 0; }
.content .wp-caption img { margin: 0 0 6px; }
.content .wp-caption-text { font-size: 14px; color: var(--muted); margin: 0; }
.content img + br { display: none; }
.content table { border-collapse: collapse; width: 100%; display: block; overflow-x: auto; }
.content td, .content th { border: 1px solid var(--line); padding: 6px 10px; }
.content blockquote { margin: 16px 0; padding: 8px 16px; border-left: 4px solid var(--brand-2); background: #f2fbfb; }
.content code { background: #eef1f4; padding: 1px 5px; border-radius: 3px; font-size: 0.92em; }
.content pre { background: var(--code-bg); color: var(--code-fg); padding: 14px 16px; border-radius: 6px; overflow-x: auto; font-size: 14px; line-height: 1.5; }
.content pre code { background: none; padding: 0; color: inherit; font-size: inherit; }
.tags { margin-top: 24px; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; font-size: 14px; color: var(--muted); }
.related { max-width: 860px; margin-top: 24px; }
.related h2 { font-size: 18px; }
.related ul { padding-left: 20px; }

.foot { border-top: 1px solid var(--line); background: #fff; color: var(--muted); font-size: 14px; padding: 18px 0; }

@media (max-width: 640px) {
  h1 { font-size: 24px; }
  .post { padding: 18px 16px; border-radius: 0; border-left: 0; border-right: 0; margin: 0 -16px; }
  .kb-title { padding-left: 10px; font-size: 16px; }
  .grid { grid-template-columns: 1fr; }
}