:root{
  --h: 235;
  --bg: hsl(30 20% 97%);
  --ink: hsl(20 25% 14%);
  --sub: hsl(20 12% 38%);
  --line: hsl(20 15% 84%);
  --brand: hsl(var(--h) 62% 42%);
  --brand-ink: hsl(var(--h) 62% 22%);
  --brand-soft: hsl(var(--h) 70% 96%);
  --radius: 4px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  line-height:1.7;
  font-size:16px;
  overflow-x:hidden;
}
.w37-wrap{max-width:1040px;margin:0 auto;padding:0 20px;}
img{max-width:100%;display:block;}
a{color:inherit;}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important;}}

/* header */
.w37-header{border-bottom:1px solid var(--line);background:var(--bg);}
.w37-nav{max-width:1040px;margin:0 auto;padding:16px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.w37-brand{font-weight:800;font-size:1.05rem;text-decoration:none;color:var(--brand-ink);}
.w37-nav ul{list-style:none;display:flex;gap:18px;margin:0;padding:0;flex-wrap:wrap;}
.w37-nav a{text-decoration:none;font-size:.92rem;color:var(--sub);}
.w37-nav a:hover{color:var(--brand-ink);}

/* hero: left text / right color block */
.w37-hero{display:grid;grid-template-columns:1fr;}
@media (min-width:800px){.w37-hero{grid-template-columns:1.15fr .85fr;min-height:340px;}}
.w37-hero-text{padding:44px 20px 30px;max-width:1040px;margin:0 auto;width:100%;}
@media (min-width:800px){.w37-hero-text{padding:56px 40px 56px 20px;margin:0;}}
.w37-hero h1{
  font-weight:800;
  word-break:keep-all;
  line-height:1.28;
  margin:0 0 14px;
  font-size:clamp(1.7rem, 5.4vw, 2.6rem);
  color:var(--ink);
}
.w37-lead{font-size:1.02rem;color:var(--sub);max-width:52ch;margin:0 0 20px;}
.w37-cta-mini{
  display:inline-block;padding:11px 20px;border-radius:var(--radius);
  background:var(--brand);color:#fff;text-decoration:none;font-weight:700;font-size:.92rem;
}
.w37-hero-block{
  background:linear-gradient(155deg,var(--brand) 0%,var(--brand-ink) 100%);
  min-height:160px;
}
@media (min-width:800px){.w37-hero-block{min-height:100%;}}

/* gallery: 4 in a row at top */
.w37-gallery{max-width:1040px;margin:0 auto;padding:22px 20px 6px;}
.w37-gallery-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
@media (min-width:640px){.w37-gallery-grid{grid-template-columns:repeat(4,1fr);}}
.w37-gallery-grid figure{margin:0;border-radius:var(--radius);overflow:hidden;background:#eee;}
.w37-gallery-grid img{aspect-ratio:4/3;object-fit:cover;width:100%;height:100%;}

/* summary box */
.w37-summary{max-width:1040px;margin:26px auto 0;padding:0 20px;}
.w37-summary-box{border:1px solid var(--line);border-left:4px solid var(--brand);background:#fff;border-radius:var(--radius);padding:18px 20px;}
.w37-summary-box p{margin:0 0 8px;font-weight:700;font-size:.92rem;color:var(--brand-ink);}
.w37-summary-box ul{margin:0;padding-left:1.1em;font-size:.94rem;color:var(--sub);}
.w37-summary-box li{margin:3px 0;}

/* body */
.w37-body{max-width:760px;margin:0 auto;padding:34px 20px 10px;}
.w37-body h2{
  font-size:clamp(1.2rem,3.2vw,1.5rem);
  margin:38px 0 12px;
  padding-top:14px;
  border-top:1px solid var(--line);
  color:var(--ink);
}
.w37-body h2:first-of-type{border-top:0;padding-top:0;margin-top:0;}
.w37-body p{margin:0 0 14px;color:var(--ink);}
.w37-body .w37-tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 16px;}
.w37-body table{border-collapse:collapse;width:100%;min-width:420px;font-size:.92rem;}
.w37-body caption{text-align:left;font-weight:700;margin-bottom:8px;color:var(--brand-ink);font-size:.9rem;}
.w37-body th,.w37-body td{border:1px solid var(--line);padding:9px 12px;text-align:left;}
.w37-body thead th{background:var(--brand-soft);}
.w37-body dl{margin:0 0 16px;border:1px solid var(--line);border-radius:var(--radius);padding:14px 18px;background:#fff;}
.w37-body dt{font-weight:700;color:var(--brand-ink);margin-top:10px;}
.w37-body dt:first-child{margin-top:0;}
.w37-body dd{margin:2px 0 0;color:var(--sub);}
.w37-checklist{margin:0 0 16px;padding-left:0;list-style:none;}
.w37-checklist li{position:relative;padding:6px 0 6px 26px;border-bottom:1px dashed var(--line);}
.w37-checklist li:last-child{border-bottom:0;}
.w37-checklist li::before{content:"";position:absolute;left:2px;top:13px;width:10px;height:10px;border:2px solid var(--brand);border-radius:2px;}
.w37-notice{font-size:.88rem;color:var(--sub);border:1px dashed var(--line);border-radius:var(--radius);padding:12px 14px;margin-top:22px;}

/* related cards: 3x2 outline */
.w37-related{max-width:1040px;margin:26px auto 0;padding:0 20px;}
.w37-related h2{font-size:1.3rem;margin:0 0 16px;}
.w37-cards{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr;gap:12px;}
@media (min-width:640px){.w37-cards{grid-template-columns:repeat(3,1fr);}}
.w37-cards a{
  display:block;border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 16px;text-decoration:none;background:#fff;height:100%;
}
.w37-cards a:hover{border-color:var(--brand);}
.w37-cards strong{display:block;font-size:.98rem;margin-bottom:6px;color:var(--ink);}
.w37-cards span{display:block;font-size:.84rem;color:var(--sub);}

/* CTA: full band */
.w37-cta{background:var(--brand);color:#fff;margin-top:40px;}
.w37-cta-inner{max-width:1040px;margin:0 auto;padding:38px 20px;text-align:center;}
.w37-cta h2{margin:0 0 10px;font-size:1.4rem;}
.w37-cta p{margin:0 0 18px;opacity:.92;font-size:.96rem;}
.w37-cta a{display:inline-block;background:#fff;color:var(--brand-ink);padding:12px 26px;border-radius:var(--radius);text-decoration:none;font-weight:800;}

/* FAQ */
.w37-faq{max-width:760px;margin:0 auto;padding:34px 20px 50px;}
.w37-faq h2{font-size:1.3rem;margin:0 0 16px;}
.w37-faq details{border:1px solid var(--line);border-radius:var(--radius);margin-bottom:10px;background:#fff;padding:2px 0;}
.w37-faq summary{cursor:pointer;padding:14px 16px;font-weight:700;list-style:none;font-size:.98rem;}
.w37-faq summary h3{margin:0;font:inherit;color:inherit;display:inline;}
.w37-faq summary::-webkit-details-marker{display:none;}
.w37-faq summary::after{content:"+";float:right;color:var(--brand);font-weight:800;}
.w37-faq details[open] summary::after{content:"–";}
.w37-faq .w37-faq-a{padding:0 16px 16px;color:var(--sub);font-size:.94rem;margin:0;}

/* footer */
.w37-footer{border-top:1px solid var(--line);background:#fff;padding:26px 20px;margin-top:0;}
.w37-footer-inner{max-width:1040px;margin:0 auto;}
.w37-biz-title{font-weight:800;margin:0 0 8px;font-size:.95rem;}
.w37-biz-list{list-style:none;margin:0;padding:0;font-size:.82rem;color:var(--sub);display:flex;flex-wrap:wrap;gap:4px 14px;}
.w37-copy{margin:14px 0 0;font-size:.78rem;color:var(--sub);}

/* touch targets */
.w37-nav a, .w37-cta-mini, .w37-cta a, .w37-cards a{min-height:44px;display:inline-flex;align-items:center;}
.w37-cards a{display:block;}

@media (prefers-color-scheme:dark){
  :root{--bg:hsl(20 10% 10%);--ink:hsl(30 20% 92%);--sub:hsl(24 8% 68%);--line:hsl(20 8% 24%);--brand-soft:hsl(var(--h) 40% 16%);}
  .w37-summary-box,.w37-body dl,.w37-cards a,.w37-faq details{background:hsl(20 10% 13%);}
  .w37-footer{background:hsl(20 10% 12%);}
}