:root{
  --ink:#112033;--ink-soft:#33465d;--paper:#f7f3ea;--surface:#fffdf8;
  --navy:#10273d;--navy-2:#183c56;--coral:#ff735e;--mint:#73d7b5;
  --sun:#ffd166;--line:#d9d6ce;--muted:#68778a;--radius:22px;
  --shadow:0 18px 50px rgba(16,39,61,.10);--content:1180px;--reading:780px;
}
*{box-sizing:border-box}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;min-width:320px;background:var(--paper);color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;line-height:1.7;text-rendering:optimizeLegibility}
img,svg,video,iframe{display:block;max-width:100%;height:auto}
a{color:#0b6c63;text-decoration-thickness:1.5px;text-underline-offset:3px}
a:hover{color:#084c49}
.skip-link{position:fixed;left:16px;top:-80px;z-index:1000;padding:10px 14px;border-radius:10px;background:#fff;color:#000}
.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:100;background:rgba(16,39,61,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.12)}
.header-inner{max-width:var(--content);margin:auto;min-height:72px;padding:10px 20px;display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:11px;color:#fff;text-decoration:none;font-weight:850;letter-spacing:-.03em;font-size:1.35rem;white-space:nowrap}
.brand-mark{width:40px;height:40px;display:grid;place-items:center;border-radius:13px;background:linear-gradient(145deg,var(--coral),var(--sun));color:var(--navy);font-weight:950;box-shadow:inset 0 0 0 1px rgba(255,255,255,.45)}
.site-nav{margin-left:auto;display:flex;gap:4px;align-items:center}
.site-nav a{padding:9px 11px;border-radius:10px;color:#eaf3f4;text-decoration:none;font-size:.94rem;font-weight:650}
.site-nav a:hover,.site-nav a[aria-current="page"]{background:rgba(255,255,255,.11);color:#fff}
.menu-toggle{position:absolute;opacity:0;pointer-events:none}
.menu-label{display:none;margin-left:auto;padding:9px 12px;border:1px solid rgba(255,255,255,.25);border-radius:11px;color:#fff;font-weight:700;cursor:pointer}
.page-shell{max-width:var(--content);margin:auto;padding:22px 20px 70px}
.breadcrumbs{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:0 0 18px;color:var(--muted);font-size:.9rem}
.breadcrumbs a{color:inherit}
.article{max-width:var(--reading);margin:auto}
.article-hero{position:relative;margin:0 0 22px;padding:34px;border:1px solid var(--line);border-radius:30px;background:var(--surface);box-shadow:var(--shadow);overflow:hidden}
.article-hero:after{content:"";position:absolute;right:-85px;top:-90px;width:220px;height:220px;border-radius:50%;background:rgba(115,215,181,.20)}
.eyebrow{position:relative;z-index:1;display:inline-flex;padding:6px 10px;border-radius:999px;background:#eaf6f1;color:#185e54;font-size:.82rem;font-weight:800;letter-spacing:.02em;text-transform:uppercase}
h1,h2,h3,h4{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink);letter-spacing:-.025em}
h1{position:relative;z-index:1;margin:.45em 0 .3em;font-size:clamp(2rem,5.8vw,4rem);line-height:1.06}
h2{margin:2.1em 0 .55em;font-size:clamp(1.55rem,3.3vw,2.2rem);line-height:1.18;scroll-margin-top:92px}
h3{margin:1.65em 0 .45em;font-size:clamp(1.22rem,2.5vw,1.5rem);line-height:1.25;scroll-margin-top:92px}
h4{margin:1.45em 0 .4em;font-size:1.12rem}
.lead{position:relative;z-index:1;margin:0;color:var(--ink-soft);font-size:clamp(1.05rem,2.2vw,1.28rem);line-height:1.55}

.hero-image{width:100%;margin:22px 0 0;aspect-ratio:1200/630;object-fit:cover;border-radius:20px;border:1px solid #d4d9d4;background:#e7eee9}
.meta-line{display:flex;gap:12px;flex-wrap:wrap;margin:15px 0 0;color:var(--muted);font-size:.88rem}
.toc{margin:22px 0;padding:0;border:1px solid #cbdad5;border-radius:18px;background:#eef7f3}
.toc summary{padding:16px 19px;cursor:pointer;font-weight:850;color:#154f49;list-style:none}
.toc summary::-webkit-details-marker{display:none}
.toc summary:after{content:"+";float:right;font-size:1.25rem}
.toc[open] summary:after{content:"–"}
.toc ol{margin:0;padding:0 22px 18px 42px}
.toc li{margin:7px 0}
.toc .toc-level-3{margin-left:18px;font-size:.95em}
.prose{padding:8px 4px 0}
.prose p,.prose li{font-size:1.075rem;color:#26384c}
.prose p{margin:.75em 0 1.05em}
.prose ul,.prose ol{padding-left:1.35em}
.prose li{margin:.42em 0}
.prose blockquote{margin:1.5em 0;padding:16px 20px;border-left:5px solid var(--coral);border-radius:0 14px 14px 0;background:#fff3ef;color:#3a3740}
.prose img{margin:24px auto;border-radius:16px}
.prose figure{margin:24px 0}
.prose figcaption{margin-top:8px;color:var(--muted);font-size:.9rem;text-align:center}
.prose table{width:100%;margin:24px 0;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
.prose th,.prose td{padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}
.prose th{background:#edf4f2}
.prose tr:last-child td{border-bottom:0}
.callout{margin:20px 0;padding:18px 20px;border:1px solid #c8ddd5;border-radius:18px;background:#f0f8f5}
.callout strong{color:#0b5a50}
.checklist{padding:18px 20px;border-radius:18px;background:#132f46;color:#eef7f8}
.checklist h2,.checklist h3,.checklist p,.checklist li{color:#eef7f8}
.source-note{font-size:.92rem;color:var(--muted)}
.related{margin:40px 0 0;padding-top:28px;border-top:1px solid var(--line)}
.related h2{margin-top:0}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card{position:relative;display:flex;flex-direction:column;min-height:190px;padding:20px;border:1px solid var(--line);border-radius:18px;background:var(--surface);box-shadow:0 8px 22px rgba(16,39,61,.06)}
.card:before{content:"";width:42px;height:6px;border-radius:99px;background:linear-gradient(90deg,var(--coral),var(--sun));margin-bottom:18px}
.card h2,.card h3{margin:0 0 9px;font-size:1.16rem;line-height:1.25}
.card p{margin:0 0 14px;color:var(--ink-soft);font-size:.95rem}
.card a{margin-top:auto;font-weight:780}
.wide-section{max-width:var(--content);margin:auto}
.collection-hero{margin:0 0 26px;padding:38px;border-radius:30px;background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;box-shadow:var(--shadow)}
.collection-hero h1,.collection-hero p{color:#fff}
.collection-hero h1{max-width:850px}
.collection-hero p{max-width:760px;font-size:1.13rem}
.category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.category-grid .card{min-height:230px}
.home-focus{margin:38px 0}
.home-focus h2{margin-top:0}
.site-footer{background:#0e2235;color:#dbe7ea}
.footer-inner{max-width:var(--content);margin:auto;padding:38px 20px;display:grid;grid-template-columns:1.3fr 1fr;gap:26px}
.site-footer h2,.site-footer p{color:#dbe7ea}
.footer-links{display:flex;flex-wrap:wrap;gap:10px 18px;align-content:start}
.site-footer a{color:#fff}
.footer-note{grid-column:1/-1;padding-top:18px;border-top:1px solid rgba(255,255,255,.16);font-size:.9rem;color:#aebec4}
@media(max-width:920px){
  .menu-label{display:block}
  .site-nav{display:none;position:absolute;left:0;right:0;top:72px;padding:12px 18px 18px;background:var(--navy);border-top:1px solid rgba(255,255,255,.12);flex-direction:column;align-items:stretch}
  .site-nav a{padding:12px}
  .menu-toggle:checked~.site-nav{display:flex}
  .card-grid,.category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:640px){
  .header-inner,.page-shell{padding-left:14px;padding-right:14px}
  .article-hero,.collection-hero{padding:24px 20px;border-radius:22px}
  h1{font-size:clamp(1.95rem,10vw,2.85rem)}
  .card-grid,.category-grid,.footer-inner{grid-template-columns:1fr}
  .footer-note{grid-column:auto}
  .prose{padding:0}
  .prose p,.prose li{font-size:1.02rem}
  .prose table{display:block;overflow-x:auto}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* editorial-upgrade-20260908 */
.hero-figure{margin:1.35rem auto 0;max-width:720px}.hero-figure figcaption{font-size:.82rem;color:var(--muted,#5d6875);margin-top:.45rem;text-align:center}.hero-image{display:block;width:min(100%,720px)!important;height:auto!important;aspect-ratio:16/9;object-fit:cover;margin-inline:auto;border-radius:18px}
.article-map{margin:1.4rem 0;padding:1.1rem 1.2rem;border:1px solid #c9dceb;border-radius:16px;background:#f5faff}.article-map>strong{display:block;font-size:1.1rem;color:#10273d}.article-map ol{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.45rem 1.2rem;margin:.8rem 0;padding-left:1.25rem}.map-finish{margin:.75rem 0 0;color:#3e566b}
.quick-answer{padding:1.1rem 1.25rem;background:#f8fafc;border-left:4px solid #1f7a8c;border-radius:0 14px 14px 0}.article-step{scroll-margin-top:5rem}.step-check{margin:1rem 0;padding:.85rem 1rem;background:#fff8e7;border:1px solid #f0d998;border-radius:12px}
.template-box{display:grid;gap:.5rem;margin:1rem 0;padding:1.1rem 1.2rem;background:#10273d;color:#fff;border-radius:16px}.template-box p{margin:0}.template-box strong{color:#9ee6d8}.faq-list{display:grid;gap:.7rem}.faq-item{border:1px solid #d7e0e8;border-radius:12px;padding:.8rem 1rem;background:#fff}.faq-item summary{font-weight:700;cursor:pointer;color:#10273d}.faq-item p{margin:.7rem 0 .2rem}.source-list a{font-weight:700}
.related-box{margin-top:2rem;padding:1.2rem;border:1px solid #c9dceb;border-radius:16px;background:#f5faff}.related-box h2{margin-top:0}.related-box li{margin:.7rem 0}.related-box li span{display:block;color:#526272;font-size:.92rem}
.seo-guides{margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid #d7e0e8}.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.guide-card{padding:1rem 1.1rem;border:1px solid #d7e0e8;border-radius:15px;background:#fff;box-shadow:0 8px 28px rgba(16,39,61,.06)}.guide-card>span{font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:#1f7a8c;font-weight:700}.guide-card h3{font-size:1.05rem;margin:.4rem 0}.guide-card p{font-size:.92rem;color:#526272;margin:0}
@media(max-width:720px){.article-map ol,.guide-grid{grid-template-columns:1fr}.article-map{padding:1rem}.hero-figure figcaption{padding:0 .5rem}}

.related-head{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink);letter-spacing:-.025em;margin:0 0 .55em;font-size:clamp(1.55rem,3.3vw,2.2rem);line-height:1.18;font-weight:700}
.card p.card-title{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink);letter-spacing:-.025em;margin:0 0 9px;font-size:1.16rem;line-height:1.25;font-weight:700}
.site-footer .footer-brand{margin:0 0 .5em;font-size:1.45rem;font-weight:700;line-height:1.2}
main :where(p,li,b,strong,em,i,a,span,h1,h2,h3,h4,blockquote,dd,dt,figcaption){overflow-wrap:anywhere}