:root{
  --sl-navy:#102f4a;
  --sl-text:#24323a;
  --sl-muted:#667780;
  --sl-border:#dce8ee;
  --sl-bg:#f7fafb;
  --sl-accent:#008b8f;
  --sl-warm:#fff8ef;
  --sl-gold:#b79c6b;
}
*{box-sizing:border-box}
body{margin:0;background:#fff;color:var(--sl-text);font-family:-apple-system,BlinkMacSystemFont,"Noto Sans JP","Yu Gothic",sans-serif;line-height:1.9}
a{color:#006d75;text-decoration:underline;text-underline-offset:3px}
.shorts-lab{max-width:960px;margin:0 auto;padding:38px 20px 60px}
.shorts-lab__breadcrumb{font-size:13px;color:var(--sl-muted);margin-bottom:24px}.shorts-lab__breadcrumb a{color:var(--sl-muted)}
.shorts-lab h1{font-size:clamp(26px,3vw,40px);line-height:1.45;color:var(--sl-navy);margin:0 0 24px;font-weight:850;letter-spacing:.01em}
.shorts-lab h2{font-size:clamp(22px,2.3vw,30px);line-height:1.5;color:var(--sl-navy);margin:54px 0 18px;padding-bottom:10px;border-bottom:2px solid var(--sl-border);font-weight:800}
.shorts-lab h3{font-size:20px;line-height:1.55;color:var(--sl-navy);margin:32px 0 12px;font-weight:800}.shorts-lab p{font-size:16px;margin:0 0 18px}.shorts-lab ul{margin:16px 0 26px;padding-left:1.4em}.shorts-lab li{margin-bottom:8px}
.shorts-lab__lead{background:var(--sl-bg);border:1px solid var(--sl-border);border-radius:18px;padding:26px;margin:0 0 32px}.shorts-lab__lead p:last-child{margin-bottom:0}
.shorts-lab__image{margin:34px auto;text-align:center}.shorts-lab__image img{max-width:100%;height:auto;border-radius:14px;display:block;margin:0 auto}.shorts-lab__caption{margin-top:10px;font-size:14px;color:var(--sl-muted);text-align:center;line-height:1.7}
.shorts-lab__point{background:#fff;border:1px solid var(--sl-border);border-radius:18px;padding:22px 24px;margin:28px 0;box-shadow:0 8px 24px rgba(16,47,74,.05)}.shorts-lab__point p:last-child{margin-bottom:0}
.shorts-lab__voice{background:var(--sl-warm);border:1px solid #ead7bd;border-radius:18px;padding:26px;margin:30px 0}.shorts-lab__voice blockquote{margin:0 0 18px;padding:0 0 0 18px;border-left:4px solid var(--sl-gold);color:#3d3326;font-size:16px}.shorts-lab__voice blockquote:last-of-type{margin-bottom:8px}.shorts-lab__note{font-size:13px;color:#7b6b55;margin-top:8px}
.shorts-lab__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:28px 0}.shorts-lab__card{border:1px solid var(--sl-border);border-radius:16px;padding:20px;background:#fff}.shorts-lab__card h3{margin-top:0}.shorts-lab__card p:last-child{margin-bottom:0}
.shorts-lab__related{background:#f7f7f7;border-radius:18px;padding:24px;margin-top:42px}.shorts-lab__related h2{margin-top:0}.shorts-lab__related ul{margin-bottom:0}
.shorts-lab__cta{background:#eef7f7;border:1px solid #cfe3e3;border-radius:20px;padding:28px;margin-top:44px;text-align:center}.shorts-lab__cta h2{border-bottom:none;margin:0 0 14px;padding:0}.shorts-lab__button{display:inline-block;margin-top:14px;padding:12px 28px;background:var(--sl-accent);color:#fff!important;text-decoration:none;border-radius:999px;font-weight:700}.shorts-lab__category-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:28px}.shorts-lab__category-list a{display:block;border:1px solid var(--sl-border);border-radius:16px;padding:18px;background:#fff;text-decoration:none;color:var(--sl-text)}.shorts-lab__category-list strong{display:block;color:var(--sl-navy);font-size:18px;margin-bottom:4px}
@media(max-width:680px){.shorts-lab{padding:28px 16px 48px}.shorts-lab__lead,.shorts-lab__voice,.shorts-lab__related,.shorts-lab__cta,.shorts-lab__point{padding:20px}.shorts-lab__grid,.shorts-lab__category-list{grid-template-columns:1fr}.shorts-lab h2{margin-top:44px}}

.shorts-lab__site-header{border-bottom:1px solid var(--sl-border);background:#fff}
.shorts-lab__site-header-inner{max-width:1100px;margin:0 auto;padding:18px 20px;display:flex;justify-content:space-between;align-items:center;gap:18px}
.shorts-lab__brand{font-weight:850;letter-spacing:.08em;color:var(--sl-navy);font-size:18px;text-decoration:none}
.shorts-lab__site-title{font-size:14px;color:var(--sl-muted)}
.shorts-lab__site-footer{border-top:1px solid var(--sl-border);margin-top:60px;background:#f8fbfc}
.shorts-lab__site-footer-inner{max-width:1100px;margin:0 auto;padding:30px 20px;font-size:14px;color:var(--sl-muted)}
.shorts-lab__site-footer a{color:var(--sl-muted);margin-right:14px}
.shorts-lab__toc{background:#fff;border:1px solid var(--sl-border);border-radius:18px;padding:24px;margin:28px 0}
.shorts-lab__toc strong{display:block;color:var(--sl-navy);font-size:18px;margin-bottom:10px}
.shorts-lab__toc ul{margin:0;padding-left:1.4em}
.shorts-lab__compare{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:28px 0}
.shorts-lab__compare-item{border:1px solid var(--sl-border);border-radius:18px;padding:22px;background:#fff}
.shorts-lab__compare-item h3{margin-top:0}
.shorts-lab__badge{display:inline-block;background:#eef7f7;color:#006d75;border:1px solid #cfe3e3;border-radius:999px;padding:4px 12px;font-size:13px;font-weight:700;margin-bottom:12px}
.shorts-lab__small-link{font-size:14px;color:var(--sl-muted)}
@media(max-width:680px){.shorts-lab__site-header-inner{align-items:flex-start;flex-direction:column}.shorts-lab__compare{grid-template-columns:1fr}}


/* Deep SEO revision */
.shorts-lab__voice h2{margin-top:0}
.shorts-lab__point h2{margin-top:0}
.shorts-lab__category-list a:hover{border-color:#b9d6dc;background:#f8fcfd}
.shorts-lab__compare-item p:last-child{margin-bottom:0}


/* Review analysis and beginner CTA additions */
.shorts-lab__count-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:26px 0}
.shorts-lab__count-grid a{display:block;text-decoration:none;color:var(--sl-text);border:1px solid var(--sl-border);border-radius:18px;background:#fff;padding:18px;box-shadow:0 6px 20px rgba(16,47,74,.04)}
.shorts-lab__count-grid strong{display:block;color:var(--sl-navy);font-size:18px;margin-bottom:6px}
.shorts-lab__count-grid span{display:inline-block;color:#006d75;font-weight:850;font-size:22px;margin-bottom:6px}
.shorts-lab__count-grid em{display:block;font-style:normal;color:var(--sl-muted);font-size:14px;line-height:1.7}
.shorts-lab__faq{background:#fbfdfe;border:1px solid var(--sl-border);border-radius:18px;padding:24px;margin:34px 0}
.shorts-lab__faq h2{margin-top:0}
.shorts-lab__faq h3{font-size:17px;margin:22px 0 6px;color:var(--sl-navy)}
.shorts-lab__faq p{margin-bottom:0}
.shorts-lab__button--sub{background:#fff;color:#006d75!important;border:1px solid #b7d6d6}
@media(max-width:780px){.shorts-lab__count-grid{grid-template-columns:1fr}}


.shorts-lab__finding{background:#f7fafb;border:1px solid var(--sl-border);border-radius:18px;padding:24px;margin:34px 0}
.shorts-lab__finding h2{margin-top:0}
.shorts-lab__finding p:last-child{margin-bottom:0}
.shorts-lab__developer{background:#fff;border:1px solid var(--sl-border);border-left:5px solid var(--sl-accent);border-radius:18px;padding:24px;margin:34px 0}
.shorts-lab__developer h2{margin-top:0}
.shorts-lab__developer p:last-child{margin-bottom:0}
.shorts-lab__faq{background:#fff;border:1px solid var(--sl-border);border-radius:18px;padding:24px;margin:34px 0}
.shorts-lab__faq h2{margin-top:0}
.shorts-lab__faq h3{font-size:18px;margin-top:22px;margin-bottom:8px}
.shorts-lab__faq p:last-child{margin-bottom:0}


/* Editor-in-chief revision additions */
.shorts-lab__analysis-list{margin:18px 0 0;padding-left:1.25em}
.shorts-lab__analysis-list li{margin-bottom:10px}
.shorts-lab__toc{background:#fffdf8;border-color:#ead7bd}
.shorts-lab__related p{margin-bottom:12px;color:var(--sl-muted)}
.shorts-lab__evidence{background:#f7fafb;border:1px solid var(--sl-border);border-radius:18px;padding:24px;margin:34px 0}
.shorts-lab__evidence h2{margin-top:0}