.b-art-hero { background: linear-gradient(180deg, #fff 0%, var(--bg-soft) 100%); border-bottom: 1px solid var(--line-img); }
.b-art-hero-in { display: flex; flex-direction: column; gap: 16px; padding-block: 12px 48px; }
.b-art-top { display: flex; flex-wrap: wrap; gap: 32px 56px; align-items: center; }
.b-art-top-l { flex: 1.3 1 520px; min-width: 0; display: flex; flex-direction: column; gap: 18px; }
.b-art-top-l .lead { max-width: 36em; }
.b-art-meta { display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: var(--fs-15); color: var(--ink-2); }
.b-art-meta > span { display: inline-flex; align-items: center; gap: 8px; }
.b-art-meta .ph { font-weight: 500; }
.b-art-cover { flex: 1 1 420px; min-width: 0; border-radius: 22px; overflow: hidden; background: var(--g); box-shadow: 0 30px 60px -40px rgba(48, 48, 48, 0.6); }
.b-art-cover .b-cv { aspect-ratio: 16 / 10; background: var(--g); }
.b-art { display: flex; flex-wrap: wrap; gap: 32px 56px; align-items: flex-start; padding-top: 48px; padding-bottom: 24px; }
.b-toc { flex: 0 0 272px; display: flex; flex-direction: column; gap: 16px; }
@media (min-width: 961px) { .b-toc { position: sticky; top: calc(var(--header-h) + 24px); max-height: calc(100dvh - var(--header-h) - 48px); overflow-y: auto; scrollbar-width: thin; } }
.b-toc-n { display: flex; flex-direction: column; gap: 10px; }
.b-toc-n > b { font-size: var(--fs-sm); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.b-toc-n ol { display: flex; flex-direction: column; gap: 2px; }
.b-tl { display: flex; align-items: center; min-height: 44px; padding: 8px 12px 8px 14px; border-radius: 0 10px 10px 0; font-size: var(--fs-15); line-height: 1.35; text-decoration: none; color: var(--ink-2); box-shadow: inset 3px 0 0 var(--line); transition: background-color var(--t-fast) ease, box-shadow var(--t-fast) ease, color var(--t-fast) ease; }
@media (hover: hover) and (pointer: fine) { .b-tl:hover { background: var(--bg-soft); color: var(--ink); } }
.b-tl[aria-current="true"] { background: #fff6cc; color: var(--ink); font-weight: 700; box-shadow: inset 4px 0 0 var(--y); }
.b-toc-help { padding: 18px; border-radius: var(--r-lg); background: var(--g); color: #fff; display: flex; flex-direction: column; gap: 8px; }
.b-toc-help b { font-size: var(--fs-md); }
.b-toc-help span { font-size: var(--fs-14); line-height: 1.55; color: #d6d6d0; }
.b-toc-help .btn { min-height: 44px; font-size: var(--fs-15); margin-top: 4px; }
@media (max-width: 960px) { .b-toc { flex: 1 1 100%; } .b-toc-help { display: none; } }
.b-pr { flex: 1 1 560px; min-width: 0; max-width: 68ch; font-size: var(--fs-xl); line-height: 1.7; color: var(--ink); overflow-wrap: break-word; }
.b-pr p { margin: 0 0 20px; }
.b-pr h2 { margin: 56px 0 18px; font-size: clamp(26px, 2.4vw, 32px); line-height: 1.15; letter-spacing: -0.02em; text-wrap: balance; }
.b-pr h3 { margin: 34px 0 12px; font-size: 21px; line-height: 1.3; letter-spacing: -0.01em; }
.b-pr h4 { margin: 24px 0 10px; font-size: var(--fs-lg); }
.b-pr ul, .b-pr ol { margin: 0 0 24px; display: grid; gap: 12px; }
.b-sect ul > li, .b-intro ul > li { position: relative; padding-left: 26px; }
.b-sect ul > li::before, .b-intro ul > li::before { content: ""; position: absolute; left: 4px; top: 0.62em; width: 9px; height: 9px; border-radius: 3px; background: var(--y); }
.b-pr ul.b-defs { grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 10px; }
.b-pr ul.b-defs > li { padding: 16px 18px; border-radius: 14px; background: var(--bg-soft); display: flex; flex-direction: column; gap: 4px; font-size: var(--fs-15); line-height: 1.5; }
.b-pr ul.b-defs > li::before { content: none; }
.b-sect ol, .b-intro ol { counter-reset: s; }
.b-sect ol > li, .b-intro ol > li { position: relative; padding-left: 52px; min-height: 36px; counter-increment: s; }
.b-sect ol > li::before, .b-intro ol > li::before { content: counter(s); position: absolute; left: 0; top: -1px; width: 36px; height: 36px; border-radius: 50%; background: var(--g); color: var(--y); display: grid; place-items: center; font-size: var(--fs-md); font-weight: 800; }
.b-pr a { font-weight: 600; }
.b-pr img { max-width: 100%; height: auto; border-radius: var(--r-lg); margin-inline: auto; }
.b-pr blockquote { margin: 0 0 24px; padding: 16px 20px; border-radius: 14px; box-shadow: inset 4px 0 0 var(--y); background: var(--bg-soft); font-size: var(--fs-lg); }
.b-pr iframe { width: 100%; max-width: 100%; aspect-ratio: 16 / 9; height: auto; border: 0; border-radius: var(--r-lg); }
.b-pr [style*="width"] { max-width: 100% !important; }
.b-intro > p:first-child { font-size: 1.08em; line-height: 1.65; }
.b-tw { margin: 8px 0 28px; overflow-x: auto; border-radius: var(--r-lg); box-shadow: inset 0 0 0 1px var(--line); }
.b-tw table { width: 100%; min-width: 520px; border-collapse: collapse; font-size: var(--fs-md); line-height: 1.5; }
.b-tw th, .b-tw td { padding: 14px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line-2); }
.b-tw tr:last-child td { border-bottom: 0; }
.b-tw thead th { font-size: var(--fs-15); font-weight: 800; background: var(--fill); }
.b-tw td:first-child { font-weight: 700; color: var(--ink-2); }
.b-tw p { margin: 0; }
@media (max-width: 640px) {
  .b-pr { font-size: var(--fs-lg); }
  .b-tw { overflow: visible; box-shadow: none; }
  .b-tw table { min-width: 0; }
  .b-tw thead { display: none; }
  .b-tw tbody, .b-tw tr, .b-tw td { display: block; width: auto !important; }
  .b-tw tr { margin-bottom: 10px; border-radius: 14px; overflow: hidden; box-shadow: inset 0 0 0 1px var(--line); }
  .b-tw td { border-bottom: 0; padding: 8px 14px; }
  .b-tw td:first-child { background: var(--fill); color: var(--ink); }
  .b-tw td[data-l]::before { content: attr(data-l); display: block; font-size: var(--fs-sm); font-weight: 700; color: var(--muted); }
}
.b-tldr { margin: 0 0 28px; padding: 22px 24px; border-radius: 18px; background: var(--bg-soft); box-shadow: inset 4px 0 0 var(--y); display: flex; flex-direction: column; gap: 12px; }
.b-tldr > b { font-size: var(--fs-14); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.b-tldr dl { margin: 0; display: grid; grid-template-columns: 150px 1fr; gap: 10px 18px; font-size: var(--fs-md); line-height: 1.55; }
.b-tldr dt { font-weight: 800; }
.b-tldr dd { margin: 0; color: #3f3f3f; }
.b-tldr p { margin: 0; font-size: var(--fs-md); line-height: 1.6; }
@media (max-width: 640px) { .b-tldr dl { grid-template-columns: 1fr; gap: 2px; } .b-tldr dd { margin-bottom: 10px; } }
.b-pcard { margin: 32px 0 8px; padding: 20px; border-radius: var(--r-xl); border: 1px solid var(--line); background: #fff; display: flex; flex-wrap: wrap; gap: 20px; align-items: center; box-shadow: 0 24px 48px -40px rgba(48, 48, 48, 0.5); font-size: var(--fs-md); }
.b-pcard-img { flex: 0 0 148px; height: 148px; aspect-ratio: auto; }
.b-pcard-img img { width: 92%; height: 92%; }
.b-pcard-t { flex: 1 1 260px; min-width: 0; display: flex; flex-direction: column; gap: 6px; line-height: 1.4; }
.b-pcard-t a { text-decoration: none; }
.b-pcard-t b { font-size: 19px; line-height: 1.3; }
.b-pcard-t > span:not(.b-feat-tags) { font-size: var(--fs-15); color: var(--ink-2); }
.b-pcard-p { font-size: 28px !important; font-weight: 800; letter-spacing: -0.02em; }
.b-pcard-a { flex: 1 1 200px; display: flex; flex-direction: column; gap: 8px; }
.b-tcard { margin: 32px 0 8px; padding: 24px; border-radius: var(--r-xl); background: #fff6cc; display: flex; flex-direction: column; gap: 18px; font-size: var(--fs-md); }
.b-tcard-h { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 6px 16px; }
.b-tcard-h b { font-size: var(--fs-h3); line-height: 1.3; }
.b-tcard-h span { font-size: var(--fs-14); color: var(--ink-2); }
.b-tcard-g { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); gap: 10px; }
.b-tcard-g > div { padding: 18px; border-radius: var(--r-lg); background: #fff; display: flex; flex-direction: column; gap: 4px; line-height: 1.4; }
.b-tcard-g > div.dk { background: var(--g); color: #fff; }
.b-tcard-g > div > span:first-child { font-size: var(--fs-14); font-weight: 700; color: var(--ink-2); }
.b-tcard-g > div.dk > span { color: #d6d6d0 !important; font-size: var(--fs-14); }
.b-tcard-g b { font-size: 34px; font-weight: 800; letter-spacing: -0.03em; }
.b-tcard-pr { display: flex; align-items: baseline; gap: 6px; }
.b-tcard-pr span { font-size: var(--fs-15); color: var(--ink-2); }
.b-tcard-g > div > span.t { font-size: var(--fs-14); color: var(--ink-2); }
.b-tcard-v { background: transparent; }
.b-art-faq { margin-top: 8px; }
.b-art-faq summary h3 { margin: 0; font-size: var(--fs-xl); line-height: 1.4; }
.b-art-faq .ans { font-size: var(--fs-lg); }
.b-art-faq .ans p { margin: 0 0 10px; }
.b-rel { display: flex; flex-direction: column; gap: 24px; padding-top: 56px; padding-bottom: 24px; }
.b-art-cta { padding-top: 40px; padding-bottom: 88px; }
.b-art-band { padding: 40px; display: flex; flex-wrap: wrap; gap: 28px; align-items: center; justify-content: space-between; }
.b-art-band-l { flex: 1 1 min(100%, 520px); min-width: 0; display: flex; flex-direction: column; gap: 12px; }
.b-art-band-l .h2 { color: #fff; font-size: clamp(26px, 2.6vw, 36px); }
.b-art-band-l p { margin: 0; font-size: var(--fs-lg); line-height: 1.6; color: #d6d6d0; max-width: 34em; }
@media (max-width: 640px) { .b-art-band { padding: 24px; } .b-pcard-img { flex-basis: 100%; height: 180px; } }
.b-toc-n { --clamp-x: 0px; }