:root{--content-ink:#14213d;--content-muted:#5f6f83;--content-line:#dce5ea;--content-paper:#fff;--content-wash:#f4f7f7;--content-teal:#008f83;--content-teal-dark:#006f67;--content-coral:#a83c31;--content-amber:#f2b134}*{box-sizing:border-box}html{background:var(--content-wash);min-height:100%}body{background:var(--content-wash);min-height:100%;color:var(--content-ink);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5;overflow-x:hidden}a{color:inherit}.content-skip-link{z-index:10;background:var(--content-ink);color:#fff;border-radius:6px;padding:10px 14px;position:fixed;top:12px;left:12px;transform:translateY(-150%)}.content-skip-link:focus{transform:translateY(0)}.content-site-header,.content-site-footer{background:var(--content-paper)}.content-site-header{border-bottom:1px solid var(--content-line)}.content-site-footer{border-top:1px solid var(--content-line)}.content-header-inner,.content-page-shell,.content-footer-inner{width:min(1120px,100% - 32px);margin:0 auto}.content-header-inner{justify-content:space-between;align-items:center;gap:24px;min-height:68px;display:flex}.content-brand{align-items:center;gap:10px;font-weight:800;text-decoration:none;display:inline-flex}.content-brand img{border-radius:6px}.content-primary-nav{gap:22px;font-weight:650;display:flex}.content-primary-nav a,.content-footer-inner a{align-items:center;min-height:44px;display:inline-flex}.content-page-shell{color:var(--content-ink);padding:34px 0 72px}.breadcrumbs{color:var(--content-muted);flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:26px;display:flex}.breadcrumbs a{min-height:44px;color:var(--content-teal-dark);align-items:center;display:inline-flex}.content-page-header{border-bottom:1px solid var(--content-line);grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:28px;padding:12px 0 34px;display:grid}.content-page-header h1{max-width:850px;margin:0;font-size:clamp(2rem,4vw,3.6rem);line-height:1.08}.eyebrow{color:var(--content-coral);text-transform:uppercase;margin:0 0 8px;font-size:.78rem;font-weight:800}.lead,.section-intro{color:var(--content-muted)}.lead{max-width:760px;margin:18px 0 0;font-size:1.08rem}.header-stat{border-left:4px solid var(--content-amber);min-width:150px;padding:6px 0 6px 18px}.header-stat strong{font-size:1.8rem;display:block}.header-stat span{color:var(--content-muted)}.content-section{border-bottom:1px solid var(--content-line);padding:40px 0}.content-section h2{margin:0 0 18px;font-size:1.55rem}.section-intro{max-width:760px;margin:-8px 0 22px}.resource-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.resource-card{background:var(--content-paper);border:1px solid var(--content-line);border-radius:6px;flex-direction:column;padding:20px;display:flex}.resource-card .kicker{color:var(--content-teal-dark);text-transform:uppercase;font-size:.78rem;font-weight:800}.resource-card p{color:var(--content-muted)}.resource-card a{color:var(--content-teal-dark);margin-top:auto;font-weight:750}.lesson-list{background:var(--content-line);border:1px solid var(--content-line);grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;display:grid}.lesson-link{background:var(--content-paper);grid-template-columns:54px minmax(0,1fr) auto;gap:14px;padding:17px 18px;text-decoration:none;display:grid}.lesson-number{color:var(--content-coral);font-weight:800}.lesson-title small{font-weight:500;display:block}.lesson-pinyin{color:var(--content-muted)}.vocab-list{gap:10px;display:grid}.vocab-row{background:var(--content-paper);border:1px solid var(--content-line);border-radius:6px;grid-template-columns:minmax(100px,.75fr) minmax(130px,1fr) minmax(220px,2fr);gap:20px;padding:20px;display:grid}.hanzi{font-size:1.85rem;font-weight:700}.pinyin{color:var(--content-teal-dark);font-weight:700}.part-of-speech{color:var(--content-coral);font-size:.78rem;display:block}.meaning{font-weight:700}.example{color:var(--content-muted);border-top:1px solid var(--content-line);grid-column:2/-1;padding-top:12px;display:grid}.cta-band{background:var(--content-ink);color:#fff;border-radius:6px;justify-content:space-between;gap:24px;padding:28px;display:flex}.button-link{background:var(--content-teal);color:#fff;border-radius:6px;align-items:center;padding:0 18px;text-decoration:none;display:inline-flex}.pagination{grid-template-columns:1fr auto 1fr;gap:16px;margin-top:24px;display:grid}.pagination .next{text-align:right}.content-footer-inner{color:var(--content-muted);justify-content:space-between;gap:22px;padding:28px 0;display:flex}.content-footer-inner nav{gap:18px;display:flex}@media (width<=800px){.content-header-inner{flex-wrap:wrap;padding:8px 0}.content-primary-nav{width:100%;overflow-x:auto}.content-page-header,.resource-grid,.lesson-list{grid-template-columns:1fr}.vocab-row{grid-template-columns:90px 1fr}.meaning{grid-column:2}.example{grid-column:1/-1}.cta-band,.content-footer-inner{flex-direction:column}}