:root{
  --ink:#111;
  --paper:#f7f4ea;
  --paper-2:#fffdf6;
  --muted:#69645b;
  --line:rgba(17,17,17,.16);
  --red:#e60012;
  --blue:#175edb;
  --teal:#008c8c;
  --gold:#bd8a1f;
  --magenta:#e6007e;
  --shadow:0 22px 60px rgba(0,0,0,.22);
  --font-ui:"Noto Sans JP",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --font-display:"Oswald","Noto Sans JP",sans-serif;
  --font-serif:"Noto Serif JP",serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:
    linear-gradient(90deg,rgba(17,17,17,.04) 1px,transparent 1px) 0 0/38px 38px,
    linear-gradient(0deg,rgba(17,17,17,.035) 1px,transparent 1px) 0 0/38px 38px,
    var(--paper);
  font-family:var(--font-ui);
  font-weight:500;
  letter-spacing:0;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}

.page{
  min-height:100svh;
  overflow:hidden;
}

.hero{
  min-height:auto;
  display:grid;
  grid-template-columns:minmax(0,1.02fr) minmax(360px,.98fr);
  align-items:center;
  gap:clamp(26px,5vw,72px);
  padding:clamp(18px,3.2vw,42px) clamp(18px,5vw,72px) clamp(42px,7vw,88px);
  background:
    linear-gradient(135deg,rgba(230,0,18,.09),transparent 32%),
    linear-gradient(315deg,rgba(0,140,140,.12),transparent 38%);
}
.hero-copy{
  max-width:720px;
  position:relative;
  z-index:2;
}
.kicker{
  margin:0 0 13px;
  color:var(--red);
  font:800 12px/1 var(--font-display);
  letter-spacing:.2em;
}
h1,h2,p{margin-top:0}
h1{
  margin-bottom:18px;
  font-family:var(--font-serif);
  font-size:clamp(64px,5.4vw,78px);
  line-height:1.06;
  letter-spacing:0;
  white-space:nowrap;
}
.lead{
  max-width:620px;
  margin-bottom:28px;
  color:#27231f;
  font-size:clamp(15px,2vw,19px);
  line-height:1.85;
  font-weight:700;
}
.hero-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:0 20px;
  border:1px solid var(--ink);
  font-size:14px;
  font-weight:900;
  transition:transform .16s ease,box-shadow .16s ease,background .16s ease;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(0,0,0,.18)}
.btn.primary{background:var(--ink);color:#fff}
.btn.ghost{background:rgba(255,255,255,.38)}

.hero-board{
  position:relative;
  min-height:500px;
  perspective:1200px;
}
.cover-stack{
  position:absolute;
  width:min(380px,64vw);
  aspect-ratio:3/4;
  border:1px solid rgba(0,0,0,.35);
  background:#fff;
  box-shadow:var(--shadow);
  overflow:hidden;
  opacity:1;
  transform:translateY(0) var(--cover-transform);
  filter:var(--cover-filter);
}
.cover-stack img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.cover-stack::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.24),transparent 16% 84%,rgba(0,0,0,.18));
  mix-blend-mode:soft-light;
  pointer-events:none;
}
.cover-stack-a{
  right:2%;
  top:4%;
  --cover-transform:rotate(4deg);
  --cover-delay:.08s;
  --cover-filter:saturate(1);
}
.cover-stack-b{
  right:24%;
  top:18%;
  --cover-transform:rotate(-10deg) scale(.84);
  --cover-delay:.24s;
  --cover-filter:saturate(.88);
}
.cover-stack-c{
  right:0;
  top:34%;
  --cover-transform:rotate(13deg) scale(.76);
  --cover-delay:.4s;
  --cover-filter:saturate(1.05);
}

html.js .cover-stack{
  opacity:0;
  transform:translateY(22px) var(--cover-transform);
  filter:blur(4px) saturate(.82);
  transition:
    opacity .72s cubic-bezier(.18,.84,.24,1),
    transform .86s cubic-bezier(.18,.84,.24,1),
    filter .86s cubic-bezier(.18,.84,.24,1);
  transition-delay:var(--cover-delay,0s);
  will-change:opacity,transform,filter;
}
html.js .cover-stack.is-visible{
  opacity:1;
  transform:translateY(0) var(--cover-transform);
  filter:var(--cover-filter);
}
html.js .cover-stack.is-settled{
  transition:none;
  opacity:1;
  transform:translateY(0) var(--cover-transform);
  filter:var(--cover-filter);
}

.sample-section,
.tools-section,
.trust-section{
  padding:clamp(50px,8vw,92px) clamp(18px,5vw,72px);
}
.section-head{
  max-width:980px;
  margin:0 auto 26px;
}
.section-head.split{
  display:grid;
  grid-template-columns:minmax(0,.8fr) minmax(280px,.62fr);
  gap:24px;
  align-items:end;
}
.section-head h2{
  margin:0;
  font-family:var(--font-serif);
  font-size:clamp(30px,5vw,58px);
  line-height:1.05;
  letter-spacing:0;
}
.section-head p:not(.kicker){
  margin:10px 0 0;
  color:var(--muted);
  line-height:1.75;
  font-size:14px;
  font-weight:700;
}

.marquee-shell{
  width:100vw;
  margin-left:calc(50% - 50vw);
  display:grid;
  gap:18px;
  overflow:hidden;
  padding:8px 0 10px;
}
.marquee-row{
  display:flex;
  width:max-content;
  gap:0;
  will-change:transform;
}
.marquee-row-a{animation:marquee-left var(--marquee-duration,48s) linear infinite}
.marquee-row-b{animation:marquee-right var(--marquee-duration,58s) linear infinite}
.marquee-set{
  display:flex;
  flex:0 0 auto;
  gap:18px;
  padding-right:18px;
}
.sample-card{
  position:relative;
  width:300px;
  flex:0 0 auto;
  overflow:hidden;
  background:
    linear-gradient(135deg,rgba(255,255,255,.44),rgba(255,255,255,0) 42%,rgba(17,17,17,.055)),
    var(--paper);
  border:1px solid rgba(0,0,0,.18);
  box-shadow:0 14px 38px rgba(0,0,0,.16);
}
.sample-card img{
  width:100%;
  aspect-ratio:3/4;
  object-fit:cover;
  opacity:0;
  transform:scale(1.018);
  filter:blur(7px) saturate(.92);
  transition:
    opacity .42s ease,
    transform .56s ease,
    filter .56s ease;
  will-change:opacity,transform,filter;
}
.sample-card.is-loaded img{
  opacity:1;
  transform:scale(1);
  filter:blur(0) saturate(1);
  will-change:auto;
}
.sample-card span{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  min-height:42px;
  padding:9px 12px;
  color:#1e1b18;
  font-size:12px;
  font-weight:900;
}
.sample-card span::after{
  content:"SAMPLE";
  color:var(--red);
  font:800 11px/1 var(--font-display);
  letter-spacing:.12em;
}

@keyframes marquee-left{
  from{transform:translateX(0)}
  to{transform:translateX(-50%)}
}
@keyframes marquee-right{
  from{transform:translateX(-50%)}
  to{transform:translateX(0)}
}

.tool-grid{
  max-width:1180px;
  margin:14px auto 0;
  display:grid;
  grid-template-columns:repeat(6,minmax(0,1fr));
  gap:18px;
}
.tool-card{
  grid-column:span 2;
  min-height:330px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  position:relative;
  overflow:hidden;
  padding:24px;
  color:#fff;
  border:1px solid rgba(0,0,0,.2);
  background:#1a1a1a;
  box-shadow:0 18px 40px rgba(0,0,0,.16);
  transition:transform .18s ease,box-shadow .18s ease;
}
.tool-card:nth-child(4),
.tool-card:nth-child(5){grid-column:span 3}
.tool-card:hover{
  transform:translateY(-4px);
  box-shadow:0 24px 58px rgba(0,0,0,.24);
}
.tool-card.car{background:linear-gradient(135deg,#111,#e60012)}
.tool-card.pet{background:linear-gradient(135deg,#17121a,#ff6f9f)}
.tool-card.travel{background:linear-gradient(135deg,#0b1820,#008c8c)}
.tool-card.gourmet{background:linear-gradient(135deg,#17100d,#9b1d2f)}
.tool-card.fashion{background:linear-gradient(135deg,#111,#e6007e)}
.tool-thumb{
  position:absolute;
  inset:0;
  opacity:.3;
}
.tool-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.92) contrast(1.04);
}
.tool-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,.2),rgba(0,0,0,.76));
}
.tool-meta,
.tool-arrow{
  position:relative;
  z-index:1;
}
.tool-meta{
  margin-top:auto;
  display:grid;
  gap:8px;
}
.tool-kicker{
  color:rgba(255,255,255,.78);
  font:800 12px/1 var(--font-display);
  letter-spacing:.16em;
}
.tool-meta strong{
  display:block;
  font-size:clamp(20px,2vw,26px);
  line-height:1.18;
  font-weight:900;
  letter-spacing:0;
  white-space:nowrap;
  word-break:keep-all;
}
.tool-meta span:last-child{
  max-width:24em;
  color:rgba(255,255,255,.84);
  font-size:13px;
  line-height:1.6;
  font-weight:700;
}
.tool-arrow{
  position:absolute;
  top:22px;
  right:22px;
  z-index:2;
  display:grid;
  place-items:center;
  align-items:center;
  height:28px;
  padding:0 10px;
  background:#fff;
  color:#111;
  font-size:12px;
  line-height:1;
  font-weight:900;
}

.trust-section{
  border-top:1px solid var(--line);
  background:#111;
  color:#fff;
}
.trust-section .section-head{max-width:1180px}
.trust-section .kicker{color:#ffd02f}
.trust-grid{
  max-width:1180px;
  margin:0 auto;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  border-top:1px solid rgba(255,255,255,.2);
  border-left:1px solid rgba(255,255,255,.2);
}
.trust-item{
  min-height:150px;
  padding:24px;
  border-right:1px solid rgba(255,255,255,.2);
  border-bottom:1px solid rgba(255,255,255,.2);
}
.trust-item strong{
  display:block;
  margin-bottom:10px;
  font-size:18px;
  font-weight:900;
}
.trust-item span{
  color:rgba(255,255,255,.72);
  font-size:13px;
  line-height:1.7;
  font-weight:700;
}

.site-footer{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px clamp(18px,5vw,72px);
  background:#111;
  color:rgba(255,255,255,.72);
  border-top:1px solid rgba(255,255,255,.18);
}
.site-footer p{
  margin:0;
  font-size:12px;
  line-height:1.6;
  font-weight:700;
}
.footer-links{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.footer-links a{
  color:#fff;
  font-size:12px;
  font-weight:800;
}

@media (max-width:960px){
  h1{font-size:48px}
  .hero{
    grid-template-columns:1fr;
    min-height:auto;
    padding-top:clamp(24px,5vw,40px);
  }
  .hero-board{
    min-height:500px;
    order:-1;
  }
  .cover-stack{
    width:min(340px,56vw);
  }
  .cover-stack-a{right:10%;top:0}
  .cover-stack-b{right:36%;top:44px}
  .cover-stack-c{right:2%;top:96px}
  .section-head.split{grid-template-columns:1fr}
  .tool-card,
  .tool-card:nth-child(4),
  .tool-card:nth-child(5){grid-column:span 6}
  .trust-grid{grid-template-columns:1fr}
}

@media (max-width:640px){
  .hero{
    padding-top:20px;
    gap:18px;
  }
  .hero-board{
    min-height:350px;
  }
  .cover-stack{
    width:min(220px,58vw);
  }
  .cover-stack-a{right:8%;top:0}
  .cover-stack-b{right:38%;top:52px}
  .cover-stack-c{right:-2%;top:84px}
  .lead{font-size:14px}
  .btn{width:100%}
  h1{font-size:34px}
  .tool-meta strong{font-size:clamp(18px,5.4vw,22px)}
  .sample-card{width:220px}
  .tool-card{min-height:290px}
  .site-footer{
    align-items:flex-start;
    flex-direction:column;
  }
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .marquee-row{animation:none}
  .sample-card img{
    transition:none;
    transform:none;
    filter:none;
  }
  html.js .cover-stack{
    transition:none;
    opacity:1;
    transform:translateY(0) var(--cover-transform);
    filter:var(--cover-filter);
  }
  .btn,.tool-card{transition:none}
}