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@media(max-width:1439px){.home-container{width:calc(100% - 80px)}.site-header{padding:0 40px}.header-inner{gap:24px}.site-header .brand{font-size:21px;padding-right:24px}.site-header nav{gap:18px}.nav-menu>summary{font-size:15px}.subject-card-grid,.popular-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.subject-card{min-height:180px}.popular-card{min-height:96px}.hero-copy h1{font-size:34px}.hero-grid{grid-template-columns:50% 50%}.hero-picture img{height:290px}.featured-article{grid-template-columns:24% 49% 27%}.site-footer{padding:24px 40px}}
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.coverage-note{padding:18px 22px;border:1px solid #c6e4dc;border-radius:12px;background:#e7f8f3;margin:24px auto;max-width:1200px;font-size:15px;line-height:1.7}.coverage-note p{margin:6px 0}.unit-link{font-size:14px;font-weight:600}.topic-grid li a{display:block;line-height:1.6;padding:4px 0}.unit-layout{display:grid;grid-template-columns:210px minmax(0,800px);gap:45px;max-width:1160px;margin:35px auto 70px;padding:0 24px}.unit-sidebar{font-size:15px;align-self:start;position:sticky;top:25px}.unit-sidebar h2{font-size:18px;margin-top:24px}.unit-sidebar a{display:block;padding:9px 0;line-height:1.5}.unit-sidebar a[aria-current]{font-weight:700;color:#123b46}.unit-article{font-size:var(--reading-size,18px);line-height:1.9;background:white;border:1px solid #d9e6e3;border-radius:14px;padding:30px 38px;min-width:0}.unit-article h1{font-size:34px;line-height:1.4;margin:8px 0 12px}.unit-article h2{font-size:24px;line-height:1.5}.unit-article h3{font-size:20px}.unit-meta{font-size:13px;color:#627a80}.unit-toc{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.unit-toc a{font-size:14px;padding:5px 10px;border:1px solid #d9e6e3;border-radius:20px}.unit-article section{border-top:1px solid #d9e6e3;padding:24px 0;scroll-margin-top:25px}.unit-article .section-no{margin:0;font-size:13px}.unit-core{padding-left:25px}.unit-core li{padding:6px 0}.unit-caution{background:#fbefe5;border-left:4px solid #d4aa73;border-radius:6px;padding:16px 20px}.unit-keywords{display:flex;flex-wrap:wrap;gap:8px}.unit-keywords a{font-size:14px;background:#e7f8f3;padding:4px 10px;border-radius:18px}.unit-answer{background:#e7f8f3;padding:15px 20px;border-radius:12px}.unit-answer summary{cursor:pointer;font-weight:600}.unit-article .source-list small{display:block}.unit-article .exam-item{font-size:16px}.unit-article .reading-link{font-size:16px}.unit-article .font-controls button{min-height:44px;min-width:44px}.unit-article .source-explanation{white-space:pre-wrap;overflow-wrap:anywhere}.unit-article a{overflow-wrap:anywhere}@media(max-width:900px){.unit-layout{grid-template-columns:minmax(0,1fr);gap:20px;margin:20px auto;padding:0 18px}.unit-sidebar{position:static;display:flex;flex-wrap:wrap;gap:4px 18px}.unit-sidebar h2,.unit-sidebar a[aria-current]{display:none}.unit-sidebar a{font-size:14px}.unit-article{padding:22px}.unit-article h1{font-size:29px}.coverage-note{margin:18px 0}}@media(max-width:500px){.unit-article{padding:20px 16px}.unit-article h2{font-size:22px}.unit-layout{padding:0 12px}.unit-article .unit-toc a{min-height:44px;display:flex;align-items:center}.coverage-note{padding:15px}.unit-caution{padding:14px}.unit-answer{padding:14px}.unit-article .exam-item summary{overflow-wrap:anywhere}}
.unit-article>header{display:block;padding:0;background:transparent;border:0}.unit-article>header .eyebrow{white-space:normal}.unit-article>header .font-controls{margin:12px 0}.unit-article .source-list{padding-left:22px}
.external-reading{background:#e7f8f3;border:1px solid #c6e4dc;border-radius:12px;padding:20px;margin:24px 0;font-size:16px;line-height:1.8}.external-reading h3{font-size:20px;margin:0 0 10px}.external-actions{display:flex;flex-wrap:wrap;gap:10px 20px}.external-actions a{display:inline-flex;align-items:center;min-height:44px;font-size:15px}.source-reading-row{display:flex;justify-content:space-between;gap:15px;padding:15px 0;border-bottom:1px solid #d9e6e3}.source-reading-row a{min-height:44px;display:flex;align-items:center}.external-reading .caption{margin-bottom:0}@media(max-width:700px){.source-reading-row{display:block}.external-reading{padding:16px}.external-actions{display:block}.external-actions a{display:flex}.external-reading a{overflow-wrap:anywhere}}