:root{
  --bg:#f7f3eb;
  --paper:#fffdf9;
  --paper-2:#fbf8f2;
  --ink:#24211f;
  --muted:#6f6963;
  --line:#e4d8c9;
  --rust:#9a634c;
  --rust-dark:#754735;
  --rust-soft:#f3e5dc;
  --mineral:#66786b;
  --mineral-soft:#e8eee8;
  --gold:#c7a15f;
  --gold-soft:#efe1c9;
  --shadow:0 18px 48px rgba(80,56,43,.09);
  --shadow-sm:0 8px 24px rgba(80,56,43,.06);
  --container:1140px;
  --display:"Hiragino Mincho ProN","Yu Mincho","Hiragino Mincho Pro","MS PMincho",serif;
  --body:"Hiragino Sans","Yu Gothic","Meiryo",sans-serif;
  --button:"Hiragino Kaku Gothic ProN","Yu Gothic","Meiryo",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:
    radial-gradient(circle at 100% 0%,rgba(154,99,76,.12),transparent 25%),
    radial-gradient(circle at 0% 45%,rgba(102,120,107,.07),transparent 20%),
    linear-gradient(180deg,#fffaf4 0,#f7f3eb 52%,#fbf8f2 100%);
  font-family:var(--body);
  font-size:16px;
  line-height:1.82;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
.container{width:min(calc(100% - 38px),var(--container));margin:0 auto}
.section{padding:88px 0}
.section-sm{padding:58px 0}
.grid{display:grid;gap:22px}
.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.three{grid-template-columns:repeat(3,minmax(0,1fr))}
h1,h2,h3,h4{margin:0 0 14px;color:var(--ink)}
h1,h2,.display{font-family:var(--display);font-weight:500;letter-spacing:.02em}
h1{font-size:clamp(40px,5.3vw,64px);line-height:1.15}
h2{font-size:clamp(30px,3.8vw,43px);line-height:1.28}
h3{font-size:20px;line-height:1.52}
p{margin:0 0 14px;color:var(--muted)}
.lead{font-size:18px;line-height:1.92;color:#59504a;max-width:64ch}
.small{font-size:13px;color:#8b8178}
.kicker{
 display:inline-flex;align-items:center;gap:10px;padding:8px 13px;border-radius:999px;
 border:1px solid rgba(154,99,76,.16);background:rgba(255,253,249,.8);
 color:var(--rust-dark);font-size:11px;font-weight:900;letter-spacing:.12em;
 margin-bottom:16px
}
.kicker::before{content:"";width:24px;height:1px;background:linear-gradient(90deg,var(--gold),transparent)}
.badge{
 display:inline-flex;padding:7px 10px;border-radius:999px;background:var(--rust-soft);
 border:1px solid #ead3c6;color:var(--rust-dark);font-size:11px;font-weight:900;letter-spacing:.06em
}
.btn-row{display:flex;gap:11px;flex-wrap:wrap}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:47px;padding:0 20px;border-radius:999px;border:1px solid transparent;
 font-family:var(--button);font-size:13px;font-weight:900;box-shadow:var(--shadow-sm);transition:.22s ease
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--rust-dark);color:#fff}
.btn-secondary{background:#fff;border-color:var(--line);color:#403833}
.btn-green{background:var(--mineral);color:white}
.arrow::after{content:"→";font-size:15px}

/* header */
.site-header{
 position:sticky;top:0;z-index:60;background:rgba(255,250,244,.9);
 backdrop-filter:blur(18px);border-bottom:1px solid rgba(228,216,201,.72)
}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:16px}
.brand{display:flex;align-items:center;gap:11px;font-weight:900;font-size:16px}
.brand-mark{
 width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
 background:var(--rust-dark);color:#f5e2c7;font-family:var(--display);font-size:18px;box-shadow:var(--shadow-sm)
}
.header-nav{display:flex;gap:3px;padding:5px;border:1px solid var(--line);border-radius:999px;background:rgba(255,253,249,.65)}
.header-nav a{padding:9px 12px;border-radius:999px;font-size:13px;font-weight:900;color:#71685f}
.header-nav a.active,.header-nav a:hover{background:#fff;color:var(--ink);box-shadow:0 6px 14px rgba(80,56,43,.05)}
.header-actions{display:flex;gap:9px;align-items:center}
.menu-toggle{
 display:none;width:43px;height:43px;border-radius:50%;border:1px solid var(--line);background:#fff;
 position:relative;cursor:pointer;box-shadow:var(--shadow-sm)
}
.menu-toggle::before,.menu-toggle::after,.menu-toggle span{
 content:"";position:absolute;left:12px;width:18px;height:2px;background:#52453e;border-radius:2px
}
.menu-toggle::before{top:14px}.menu-toggle span{top:20px}.menu-toggle::after{top:26px}
.mobile-menu{display:none;border-top:1px solid var(--line);background:rgba(255,250,244,.98)}
.mobile-menu.open{display:block}
.mobile-menu .inner{display:grid;gap:9px;padding:14px 0 18px}
.mobile-menu a{padding:13px 14px;background:#fff;border:1px solid var(--line);border-radius:14px;font-size:14px;font-weight:900}

/* hero */
.hero{padding:50px 0 72px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:.94fr 1.06fr;gap:52px;align-items:center}
.hero-copy .lead{margin-bottom:24px}
.hero-notes{display:flex;gap:9px;flex-wrap:wrap;margin:19px 0 26px}
.hero-notes span{font-size:12px;padding:8px 11px;border-radius:999px;border:1px solid var(--line);background:rgba(255,253,249,.72);color:#6c6159}
.product-stage{
 min-height:520px;border:1px solid var(--line);border-radius:32px;background:linear-gradient(160deg,#fffdfa,#f1e4d9);
 box-shadow:var(--shadow);padding:24px;display:grid;grid-template-columns:1.1fr .9fr;gap:16px
}
.stage-main,.stage-mini{
 background:#fff;border:1px solid rgba(228,216,201,.88);border-radius:24px;padding:18px;box-shadow:var(--shadow-sm)
}
.stage-main{display:flex;flex-direction:column;justify-content:space-between}
.stage-main img{width:100%;height:320px;object-fit:contain}
.stage-stack{display:grid;gap:16px}
.stage-mini{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:12px}
.stage-mini img{width:100%;height:155px;object-fit:contain}
.stage-label{font-size:10px;font-weight:900;letter-spacing:.12em;color:var(--rust-dark);margin-bottom:7px}
.stage-mini strong,.stage-main strong{font-family:var(--display);font-size:24px;font-weight:500;line-height:1.32}

/* general */
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
.section-head p{max-width:58ch}
.card{background:rgba(255,253,249,.9);border:1px solid var(--line);border-radius:25px;box-shadow:var(--shadow-sm)}
.info-card{padding:25px}
.fact-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:24px;overflow:hidden;background:rgba(255,253,249,.72)}
.fact{padding:22px;border-right:1px solid var(--line)}
.fact:last-child{border-right:0}
.fact b{display:block;font-family:var(--display);font-size:22px;font-weight:500;margin-bottom:5px}
.fact span{font-size:12px;color:#81776f}

/* product cards */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.product-card{overflow:hidden;display:flex;flex-direction:column;min-height:550px}
.product-media{height:265px;display:grid;place-items:center;padding:22px;background:linear-gradient(180deg,#fffdfa,#eee5dc);border-bottom:1px solid var(--line)}
.product-media img{height:220px;width:100%;object-fit:contain}
.product-body{padding:23px;display:flex;flex-direction:column;flex:1}
.product-body h3{font-family:var(--display);font-weight:500;font-size:28px;margin-top:11px}
.product-body .price{font-size:14px;font-weight:900;color:var(--rust-dark);margin-bottom:9px}
.product-meta{display:flex;gap:7px;flex-wrap:wrap;margin:12px 0 16px}
.product-meta span{font-size:11px;padding:7px 9px;border:1px solid var(--line);border-radius:999px;background:#fff;color:#74695f}
.product-body .btn-row{margin-top:auto}

/* questions */
.question-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:26px;overflow:hidden}
.question{padding:24px 27px;background:#fffdfa}
.question .num{font-size:10px;font-weight:900;letter-spacing:.12em;color:var(--gold);margin-bottom:10px}
.question h3{font-family:var(--display);font-weight:500;font-size:23px}
.text-link{font-size:13px;font-weight:900;color:var(--rust-dark);display:inline-flex;gap:8px;align-items:center}
.text-link::after{content:"→"}

/* source/trust */
.trust{
 display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:stretch
}
.trust-image{border:1px solid var(--line);border-radius:28px;overflow:hidden;box-shadow:var(--shadow);background:#fff;display:flex;align-items:center;justify-content:center;padding:18px;min-height:320px}
.trust-image img{width:100%;height:auto;max-height:100%;object-fit:contain;display:block}
.trust-panel{padding:32px;border:1px solid var(--line);border-radius:28px;background:linear-gradient(180deg,#fffdfa,#f1e9df);box-shadow:var(--shadow)}
.mineral-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:20px 0}
.mineral-item{padding:15px;border-radius:15px;border:1px solid var(--line);background:#fff}
.mineral-item strong{display:block;font-size:14px;margin-bottom:5px}
.mineral-item p{font-size:12px;margin:0}

/* guide cards */
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.guide-card{padding:23px;min-height:245px;display:flex;flex-direction:column}
.guide-card .topic{font-size:10px;font-weight:900;letter-spacing:.13em;color:var(--mineral);margin-bottom:10px}
.guide-card h3{font-family:var(--display);font-size:23px;font-weight:500}
.guide-card .text-link{margin-top:auto}

/* notices */
.health-note{
 padding:20px 22px;border-radius:20px;border:1px solid #d7dfd7;background:#f5f8f5;color:#59645c;font-size:13px
}
.health-note strong{color:#39473f}
.page-hero{padding:40px 0 16px}
.page-hero .inner{padding:31px;border-radius:28px;border:1px solid var(--line);background:linear-gradient(180deg,#fffdfa,#f1e7dc);box-shadow:var(--shadow-sm)}
.breadcrumbs{display:flex;gap:9px;flex-wrap:wrap;font-size:12px;color:#8c8278;margin-bottom:16px}
.feature-list{display:grid;gap:18px}
.feature-row{display:grid;grid-template-columns:310px 1fr;overflow:hidden}
.feature-row .product-media{height:auto;min-height:300px}
.feature-content{padding:28px}
.feature-content h2{font-size:36px;margin-top:11px}
.list-clean{padding-left:18px;color:#645d57}
.video-wrap{position:relative;aspect-ratio:16/9;border-radius:24px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.video-wrap iframe{width:100%;height:100%;border:0}
.shop-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.shop{padding:21px}
.shop h3{font-size:18px}
.external-ref{font-size:12px;color:#898077;word-break:break-all}

/* CTA */
.cta{border-radius:31px;padding:34px;background:linear-gradient(135deg,#4d352b,#805543);color:white;box-shadow:var(--shadow)}
.cta h2{color:#fff}
.cta p{color:rgba(255,255,255,.8)}
.cta-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:22px;align-items:center}
.cta-links{display:grid;gap:9px}
.cta-link{display:flex;justify-content:space-between;padding:13px 15px;border:1px solid rgba(255,255,255,.17);background:rgba(255,255,255,.06);border-radius:14px;font-size:14px;font-weight:900}

/* footer */
.site-footer{margin-top:80px;padding:38px 0 32px;border-top:1px solid var(--line);background:rgba(255,253,249,.35)}
.footer-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:30px}
.footer-brand strong{font-family:var(--display);font-size:24px;font-weight:500}
.footer-brand p{max-width:36ch;font-size:13px;margin-top:9px}
.footer-heading{font-size:10px;letter-spacing:.12em;color:#94877d;font-weight:900;margin-bottom:12px}
.footer-links{display:grid;gap:8px;font-size:13px;color:#6c635c}
.footer-bottom{margin-top:25px;padding-top:16px;border-top:1px solid var(--line);display:flex;justify-content:space-between;font-size:11px;color:#91877e}
.fade-up{opacity:0;transform:translateY(18px);transition:.7s ease}
.fade-up.in{opacity:1;transform:none}

@media(max-width:1020px){
 .header-nav{display:none}.menu-toggle{display:block}
 .hero-grid,.trust,.cta-grid{grid-template-columns:1fr}
 .product-grid,.guide-grid,.shop-grid{grid-template-columns:1fr 1fr}
 .feature-row{grid-template-columns:260px 1fr}
}
@media(max-width:760px){
 .container{width:min(calc(100% - 20px),var(--container))}
 .section{padding:62px 0}.section-sm{padding:42px 0}
 .header-inner{min-height:64px}.brand{font-size:14px}.brand-mark{width:36px;height:36px}
 .header-actions{display:none}
 .hero{padding:28px 0 48px}.hero-grid{gap:28px}
 h1{font-size:37px}h2{font-size:28px}.lead{font-size:16px;line-height:1.86}
 .product-stage{grid-template-columns:1fr;min-height:auto;padding:14px}.stage-main img{height:220px}
 .stage-stack{grid-template-columns:1fr 1fr}.stage-mini{display:block}.stage-mini img{height:125px}.stage-mini strong{font-size:19px}
 .fact-strip{grid-template-columns:1fr 1fr}.fact:nth-child(2){border-right:0}.fact:nth-child(-n+2){border-bottom:1px solid var(--line)}
 .section-head{display:block;margin-bottom:22px}.section-head p{margin-top:9px}
 .product-grid,.guide-grid,.shop-grid,.question-grid,.mineral-grid{grid-template-columns:1fr}
 .product-card{min-height:auto}.product-media{height:220px}.product-media img{height:180px}
 .trust-image{min-height:220px;padding:14px}.trust-panel{padding:23px}
 .feature-row{grid-template-columns:1fr}.feature-content{padding:22px}.feature-content h2{font-size:30px}
 .page-hero{padding:24px 0 8px}.page-hero .inner{padding:21px}
 .cta{padding:24px}
 .footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}
}
@media(prefers-reduced-motion:reduce){
 *{transition:none!important;scroll-behavior:auto!important}.fade-up{opacity:1;transform:none}
}


/* V2 - uploaded official/source imagery */
.image-story{
  display:grid;grid-template-columns:1.08fr .92fr;gap:24px;align-items:stretch
}
.image-story.reverse{grid-template-columns:.92fr 1.08fr}
.image-story-media{
  border:1px solid var(--line);border-radius:28px;background:#fff;box-shadow:var(--shadow);
  overflow:hidden;display:grid;place-items:center;min-height:350px
}
.image-story-media img{width:100%;height:100%;object-fit:cover}
.image-story-media.contain img{object-fit:contain;padding:18px}
.image-story-copy{
  padding:31px;border:1px solid var(--line);border-radius:28px;
  background:linear-gradient(180deg,#fffdfa,#f2e9df);box-shadow:var(--shadow-sm)
}
.explain-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}
.explain-card{
  overflow:hidden;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:var(--shadow-sm)
}
.explain-card img{width:100%;height:220px;object-fit:contain;background:#fff;padding:8px;border-bottom:1px solid var(--line)}
.explain-card .body{padding:18px}
.explain-card .body h3{font-family:var(--display);font-size:21px;font-weight:500}
.process-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px}
.process-card{border:1px solid var(--line);border-radius:19px;background:#fff;overflow:hidden;box-shadow:var(--shadow-sm)}
.process-card img{width:100%;height:175px;object-fit:contain;background:#fff;padding:8px}
.process-card .body{padding:14px}
.process-card .step-no{font-size:10px;font-weight:900;letter-spacing:.12em;color:var(--rust-dark);margin-bottom:5px}
.family-banner{border:1px solid var(--line);border-radius:27px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.family-banner img{width:100%;height:auto}
.visual-note{margin-top:11px;font-size:12px;line-height:1.65;color:#887e75}
@media(max-width:1020px){
  .image-story,.image-story.reverse{grid-template-columns:1fr}
  .explain-grid{grid-template-columns:1fr 1fr}
  .process-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .explain-grid,.process-grid{grid-template-columns:1fr}
  .image-story-copy{padding:21px}
  .image-story-media{min-height:240px}
  .explain-card img,.process-card img{height:auto;max-height:300px}
}

.trust-image.compact{min-height:280px;padding:16px}


/* V3 - brochure-driven storytelling */
.v3-hero-products{min-height:520px;border:1px solid var(--line);border-radius:32px;background:linear-gradient(155deg,#fffdfa,#efe5d9);box-shadow:var(--shadow);padding:24px;display:grid;grid-template-columns:1.18fr .82fr;gap:16px}
.v3-product-main,.v3-product-side{background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow-sm)}
.v3-product-main{padding:22px;display:flex;flex-direction:column;justify-content:space-between}.v3-product-main img{width:100%;height:330px;object-fit:contain}
.v3-product-side{overflow:hidden;display:flex;flex-direction:column}.v3-product-side img{width:100%;height:235px;object-fit:cover}.v3-product-side .copy{padding:18px}.v3-product-side .copy strong{font-family:var(--display);font-size:22px;font-weight:500;line-height:1.35}
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.scene-card{overflow:hidden;border:1px solid var(--line);border-radius:21px;background:#fff;box-shadow:var(--shadow-sm)}.scene-card img{width:100%;height:190px;object-fit:cover}.scene-card .body{padding:16px}.scene-card h3{font-family:var(--display);font-size:20px;font-weight:500}
.powder-story{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;align-items:stretch}.powder-visuals{display:grid;grid-template-columns:1fr 1fr;gap:12px}.powder-visuals figure{margin:0;border:1px solid var(--line);border-radius:22px;overflow:hidden;background:#fff;box-shadow:var(--shadow-sm)}.powder-visuals img{width:100%;height:100%;min-height:260px;object-fit:cover}.powder-copy{padding:30px;border:1px solid var(--line);border-radius:27px;background:linear-gradient(180deg,#fffdfa,#f2e9df);box-shadow:var(--shadow)}
.usage-table{width:100%;border-collapse:collapse;margin:20px 0;border:1px solid var(--line);background:#fff}.usage-table th,.usage-table td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}.usage-table th{background:#f4eee6;color:#5e5047;font-weight:900}.usage-table tr:last-child td{border-bottom:0}
.spec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.spec-card{padding:18px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow-sm)}.spec-card b{display:block;font-size:14px;margin-bottom:5px}
.developer-v3{display:grid;grid-template-columns:360px 1fr;gap:22px;align-items:center}.developer-v3-photo{border-radius:25px;overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-sm);padding:12px}.developer-v3-photo img{width:100%;height:370px;object-fit:contain}.developer-v3-copy{padding:30px;border:1px solid var(--line);border-radius:27px;background:linear-gradient(180deg,#fffdfa,#f2e9df);box-shadow:var(--shadow)}
.aso-story{display:grid;grid-template-columns:1.08fr .92fr;gap:22px;align-items:stretch}.aso-story-photo{border-radius:27px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}.aso-story-photo img{width:100%;height:100%;object-fit:cover}.aso-story-copy{padding:30px;border:1px solid var(--line);border-radius:27px;background:#fffdfa;box-shadow:var(--shadow-sm)}
.brochure-note{padding:19px 21px;border-radius:18px;border:1px solid #e2d5c8;background:#fffaf4;font-size:13px;color:#6d625a}
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:start}.article-main{display:grid;gap:18px}.article-main .card{padding:26px}.article-aside{position:sticky;top:95px;display:grid;gap:14px}.article-aside .card{padding:18px}.article-main h2{font-size:31px}
@media(max-width:1020px){.v3-hero-products,.powder-story,.aso-story,.developer-v3,.article-layout{grid-template-columns:1fr}.scene-grid{grid-template-columns:1fr 1fr}.article-aside{position:static}}
@media(max-width:760px){.v3-hero-products{padding:14px;min-height:auto}.v3-product-main img{height:230px}.v3-product-side img{height:200px}.scene-grid{grid-template-columns:1fr}.powder-visuals{grid-template-columns:1fr}.powder-visuals img{min-height:220px}.powder-copy,.developer-v3-copy,.aso-story-copy{padding:21px}.developer-v3-photo img{height:auto;max-height:330px}.spec-grid{grid-template-columns:1fr}.usage-table th,.usage-table td{font-size:13px;padding:11px 10px}}