.detail-hero { padding-top: 38px; padding-bottom: 48px; }
.detail-breadcrumb { color: var(--steel); font-size: 13px; margin-bottom: 38px; }
.detail-breadcrumb a { padding: 10px 0; text-underline-offset: 4px; }
.detail-hero h1 { font-family: var(--f-display); font-size: clamp(42px,5.4vw,76px); font-weight: 400; line-height: 1.08; letter-spacing: -.035em; max-width: 20ch; margin: 20px 0 24px; }
html[lang="zh-Hans"] .detail-hero h1 { font-family: var(--f-body); font-size: clamp(36px,4.5vw,60px); font-weight: 500; line-height: 1.3; }
.detail-lead { font-size: 19px; color: var(--ink-2); line-height: 1.8; max-width: 74ch; }
.technical-figure { margin: 0 0 28px; }
.technical-figure img { display: block; width: 100%; height: auto; object-fit: contain; background: var(--paper-2); }
.technical-figure a { display: block; }
.technical-figure figcaption { color: var(--steel); font-size: 13px; line-height: 1.7; padding: 12px 0; }
.detail-layout { display: grid; grid-template-columns: minmax(180px,.8fr) minmax(0,2.2fr); gap: clamp(32px,6vw,100px); padding-top: 24px; padding-bottom: 48px; align-items: start; }
.detail-toc { position: sticky; top: 108px; border-top: 2px solid var(--ink); padding-top: 20px; }
.detail-toc > p { font-family: var(--f-mono); color: var(--steel); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 14px; }
.detail-toc ul { list-style: none; padding: 0; }
.detail-toc a { display: block; padding: 9px 0; font-size: 14px; line-height: 1.6; color: var(--ink-2); }
.detail-toc a:hover { color: var(--rust); text-decoration: underline; text-underline-offset: 4px; }
.detail-content { min-width: 0; }
.detail-section { border-top: 1px solid var(--line); padding: 28px 0 32px; }
.detail-section h2 { font-family: var(--f-display); font-weight: 400; font-size: clamp(25px,2.7vw,38px); line-height: 1.25; margin-bottom: 20px; }
html[lang="zh-Hans"] .detail-section h2 { font-family: var(--f-body); font-size: clamp(23px,2.3vw,31px); font-weight: 500; }
.detail-section p, .detail-section li { font-size: 16px; line-height: 1.85; color: var(--ink-2); }
.detail-section p + p { margin-top: 14px; }
.detail-section ul { padding-left: 22px; margin-top: 18px; }
.detail-section li { padding-left: 4px; margin-bottom: 9px; }
.detail-directory { padding-top: 32px; padding-bottom: 56px; }
.detail-directory h2 { font-family: var(--f-body); font-size: clamp(26px,3vw,38px); font-weight: 500; line-height: 1.35; margin: 18px 0 28px; }
.detail-cards { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.detail-card { display: block; padding: 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .2s; }
.detail-card:hover { background: var(--paper-2); }
.detail-card h3 { font-family: var(--f-body); font-size: 21px; font-weight: 500; line-height: 1.45; margin-bottom: 12px; }
.detail-card h3 span { color: var(--rust); }
.detail-card p { font-size: 14px; line-height: 1.8; color: var(--steel); }
.detail-contact { display: flex; gap: 36px; align-items: center; justify-content: space-between; padding-top: 36px; padding-bottom: 36px; border-top: 1px solid var(--line); }
.detail-contact h2 { font-family: var(--f-body); font-size: clamp(25px,3vw,36px); font-weight: 500; line-height: 1.35; margin: 14px 0; }
.detail-contact p { max-width: 66ch; color: var(--steel); line-height: 1.8; }
.detail-contact .btn { flex-shrink: 0; }
.related-link { padding-top: 12px; padding-bottom: 12px; }
.related-link a { display: inline-block; padding: 12px 0; text-decoration: underline; text-underline-offset: 5px; }
@media (max-width: 1180px) {
 .topbar-inner { min-height: 68px; height: auto; flex-wrap: wrap; gap: 0 12px; padding-top: 10px; padding-bottom: 10px; }
 .topbar-right { margin-left: auto; gap: 10px; }
 .topbar-cta { display: none; }
 .nav { display: flex; flex-wrap: wrap; justify-content: space-between; order: 3; flex-basis: 100%; padding-top: 12px; gap: 8px 18px; }
 .js .nav-toggle { display: inline-flex; align-items: center; justify-content: center; min-width: 48px; min-height: 44px; padding: 6px 10px; border: 1px solid var(--ink); color: var(--ink); background: transparent; font-size: 13px; }
 .js .nav { display: none; }
 .js .topbar[data-open] .nav { display: grid; grid-template-columns: 1fr; padding-top: 16px; }
 .js .topbar[data-open] .nav a { padding: 10px 4px; border-top: 1px solid var(--line); }
}
@media (max-width: 760px) {
 .detail-hero { padding-top: 24px; padding-bottom: 28px; }
 .detail-breadcrumb { margin-bottom: 24px; }
 .detail-lead { font-size: 16px; }
 .detail-layout { grid-template-columns: minmax(0,1fr); gap: 26px; }
 .detail-toc { position: static; }
 .detail-toc ul { display: flex; flex-wrap: wrap; gap: 4px 18px; }
 .detail-toc a { font-size: 13px; text-decoration: underline; text-underline-offset: 4px; }
 .detail-section { padding: 24px 0; }
 .detail-cards { grid-template-columns: minmax(0,1fr); }
 .detail-card { padding: 23px; }
 .detail-contact { flex-direction: column; align-items: flex-start; gap: 22px; }
 .detail-directory { padding-bottom: 32px; }
}