:root{
  --brand-main:#B85F7E;
  --brand-dark:#9D4867;
  --brand-soft:#F6E8EE;
  --brand-surface:#FFF9FC;
  --ink:#2B2B2B;
  --ink-soft:#6E5560;
  --line:rgba(184,95,126,.24);
  --line-strong:rgba(184,95,126,.42);
  --shadow:0 4px 14px rgba(157,72,103,.08);
  --radius:14px;
}

*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  font-family:"Noto Sans JP", sans-serif;
  color:var(--ink);
  font-size:clamp(15px, 1.05vw, 17px);
  line-height:1.8;
  background:linear-gradient(180deg, #FFF9FC 0%, #FFFDFE 100%);
}
[lang="en"]{
  font-family:"Dancing Script","Cormorant Garamond",cursive;
  font-weight:600;
  letter-spacing:.02em;
  font-style:normal;
}

a{ color:inherit; text-decoration:none; }
img{ width:100%; height:auto; display:block; object-fit:cover; }
section, header{ scroll-margin-top:88px; }

.container{ max-width:1040px; margin:0 auto; padding:0 24px; }
section{ padding:84px 0; background:var(--brand-surface); }
.section{ padding:108px 0; }
.section-white{ background:var(--brand-surface); }
.section-alt{ background:#FFF2F7; }

.topnav,
.header{
  position:sticky;
  top:0;
  z-index:40;
  background:transparent;
  border-bottom:none;
  backdrop-filter:blur(10px);
}
.nav-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  padding:14px 0;
}
.nav-brand{
  font-family:"Cormorant Garamond", serif;
  font-size:22px;
  letter-spacing:.18em;
  font-weight:700;
  color:var(--ink);
}
.nav-links{
  display:flex;
  flex-wrap:wrap;
  justify-content:flex-end;
  gap:8px;
}
.nav-links a,
.header__nav a{
  font-size:14px;
  font-weight:500;
  letter-spacing:.02em;
  color:var(--ink);
  opacity:.8;
  border:none;
  border-radius:0;
  background:transparent;
  padding:6px 2px;
  transition:.2s ease;
}
.nav-links a[lang="en"],
.header__nav a[lang="en"]{
  font-size:16px;
}
.nav-links a:hover,
.header__nav a:hover{
  opacity:1;
}
.nav-links a.contact,
.header__nav a.contact{
  opacity:1;
  border-bottom:1px solid currentColor;
}

.hero{
  background:var(--brand-main);
  padding:26px 0 20px;
}
.hero-inner{
  width:min(1120px, 92vw);
  margin:0 auto;
  display:grid;
  grid-template-columns:minmax(320px, 1.08fr) minmax(340px, 1fr);
  align-items:center;
  gap:22px;
  min-height:clamp(260px, 40vh, 420px);
}
.hero-media{
  display:flex;
  justify-content:flex-end;
  align-items:center;
}
.hero-model{
  width:min(560px, 100%);
  max-height:min(68vh, 680px);
  object-fit:contain;
  object-position:center;
}
.hero-content{
  justify-self:start;
  max-width:min(560px, 100%);
  text-align:left;
}
.hero-content h1{
  margin:0;
  font-size:clamp(28px, 3.2vw, 46px);
  line-height:1.2;
  color:#fff;
  font-weight:700;
  letter-spacing:.01em;
}
.hero-content h1 span{ display:block; white-space:nowrap; }
.hero-sub{
  margin:18px 0 0;
  font-size:clamp(16px, 1.2vw, 19px);
  line-height:1.8;
  color:rgba(255,255,255,.95);
}
.btn-primary{
  display:inline-block;
  margin-top:26px;
  padding:12px 22px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.48);
  background:rgba(255,255,255,.12);
  color:#fff;
  font-weight:600;
  letter-spacing:.04em;
  transition:.2s ease;
}
.btn-primary:hover{ background:rgba(255,255,255,.22); }

.section-heading{
  margin-bottom:38px;
  display:grid;
  grid-template-columns:1fr;
  align-items:end;
  gap:10px;
}
.section-number{
  margin:0;
  font-family:"Cormorant Garamond", serif;
  font-size:50px;
  line-height:1;
  color:var(--brand-dark);
}
.section-title{
  margin:0;
  display:flex;
  flex-direction:column;
  gap:6px;
  line-height:1.34;
  font-weight:700;
  font-family:"Cormorant Garamond","Noto Sans JP",serif;
  letter-spacing:.01em;
  text-wrap:balance;
}
.section-en{
  font-size:22px;
  letter-spacing:.05em;
  text-transform:none;
  font-weight:600;
  color:#B85F7E;
}
h2.section-title[lang="en"]{
  font-size:clamp(30px, 3vw, 40px);
  line-height:1.2;
}
.section-ja{
  font-size:28px;
  font-weight:800;
  color:#222;
  font-family:"Noto Sans JP",sans-serif;
}
.section-ja-solution{
  font-size:clamp(28px, 2.4vw, 35px);
  line-height:1.34;
  text-wrap:balance;
}
.section-line{
  grid-column:1 / -1;
  margin-top:14px;
  border-top:1px solid var(--line);
}
.section-no{
  margin-right:.42em;
  color:var(--brand-dark);
  font-family:"Cormorant Garamond", serif;
  font-size:1.08em;
  font-weight:700;
}

.cards{ display:grid; gap:24px; }

.condition-lead{
  margin:22px 0 30px;
  max-width:52ch;
  font-size:clamp(16px, 1.35vw, 20px);
  line-height:1.85;
  font-weight:600;
  color:var(--ink);
  text-wrap:pretty;
}
.image-grid-two{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:24px;
}
.problem-images img{
  aspect-ratio:4 / 3;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}

.condition-causes{
  grid-template-columns:repeat(2, 1fr);
  margin-top:30px;
  margin-bottom:18px;
}
.cause{
  background:var(--brand-surface);
  border:1px solid var(--line);
  border-left:4px solid var(--line-strong);
  border-radius:var(--radius);
  padding:24px 24px;
  text-align:left;
  display:flex;
  align-items:center;
  gap:0;
  justify-content:center;
  font-weight:700;
  font-size:18px;
  letter-spacing:.03em;
  box-shadow:var(--shadow);
}

.market-layout{
  grid-template-columns:repeat(2, 1fr);
  align-items:center;
}
.inline-market{
  margin-top:22px;
}
.market-chart-wrap{
  background:var(--brand-surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  display:flex;
  justify-content:center;
  box-shadow:var(--shadow);
}
.donut-chart{
  width:min(320px, 72vw);
  aspect-ratio:1;
  border-radius:50%;
  background:conic-gradient(var(--brand-main) 0 31.6%, rgba(184,95,126,.18) 31.6% 100%);
  position:relative;
}
.donut-chart::after{
  content:"";
  position:absolute;
  inset:21%;
  border-radius:50%;
  background:var(--brand-surface);
}
.donut-center{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  z-index:1;
}
.donut-label{
  margin:0;
  font-size:12px;
  letter-spacing:.05em;
  color:var(--ink-soft);
}
.donut-value{
  margin:0;
  font-size:clamp(28px, 3.1vw, 36px);
  font-weight:800;
  color:var(--ink);
}
.market-text{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.market-message{
  margin:0;
  font-size:clamp(18px, 1.8vw, 24px);
  line-height:1.7;
  font-weight:700;
  text-wrap:balance;
}
.source-note{
  margin:0;
  font-size:14px;
  line-height:1.7;
  color:var(--ink-soft);
}

.issues{ padding:84px 0; background:var(--brand-surface); }
.issues-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:24px;
  margin-top:28px;
  align-items:stretch;
}
.issue-card{
  background:var(--brand-surface);
  border:1px solid var(--line);
  border-radius:16px;
  padding:28px 28px 24px;
  box-shadow:var(--shadow);
  height:100%;
  display:flex;
  flex-direction:column;
}
.issue-kicker{
  font-size:15px;
  letter-spacing:.12em;
  color:var(--brand-dark);
  font-weight:700;
}
.issue-title{
  margin:10px 0 10px;
  font-size:clamp(21px, 2.1vw, 30px);
  line-height:1.25;
  font-weight:700;
  text-wrap:balance;
}
.issue-desc{
  margin:0;
  font-size:clamp(17px, 1.15vw, 20px);
  color:#4F3E45;
  line-height:1.85;
}

.solution-layout{
  display:grid;
  grid-template-columns:1.08fr 1fr;
  align-items:start;
  gap:28px;
}
.solution-visual{ display:grid; gap:14px; }
.solution-wrap{
  --solution-thumb:240px;
  display:grid;
  grid-template-columns:1fr var(--solution-thumb);
  align-items:end;
  gap:14px;
}
.solution-figure{
  margin:0;
  display:grid;
  gap:10px;
}
.solution-main{
  width:100%;
  height:var(--solution-thumb);
  object-fit:cover;
  border-radius:16px;
  box-shadow:var(--shadow);
}
.solution-float{
  position:static;
  width:var(--solution-thumb);
  max-width:none;
  aspect-ratio:1 / 1;
  border-radius:50%;
  border:2px solid var(--brand-surface);
  box-shadow:var(--shadow);
  justify-self:end;
}
.solution-caption{
  margin:0;
  font-size:16px;
  color:#5A454D;
  font-weight:500;
}
.solution-figure-round{
  justify-items:center;
}
.solution-figure-round .solution-caption{
  text-align:center;
}
.solution-subcopy{
  margin:0;
  font-size:clamp(17px, 1.5vw, 20px);
  line-height:1.8;
  color:var(--ink);
}
.answer-grid{
  margin-top:16px;
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  align-items:stretch;
  gap:12px;
}
.answer-card{
  height:100%;
  background:#FFF6FA;
  border:1px solid var(--line);
  border-radius:14px;
  padding:14px 14px 13px;
}
.answer-label{
  margin:0 0 8px;
  font-size:22px;
  line-height:1.1;
  color:var(--brand-dark);
  display:flex;
  align-items:center;
  gap:8px;
}
.answer-icon{
  width:20px;
  height:20px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(184,95,126,.16);
  border:1px solid rgba(184,95,126,.35);
  font-size:13px;
  font-family:"Noto Sans JP",sans-serif;
}
.answer-text{
  margin:0;
  font-size:17px;
  line-height:1.8;
  color:#4F3E45;
}
.solution-tail{
  margin:16px 0 0;
  font-size:17px;
  line-height:1.8;
  color:var(--ink);
}
.tech-link{
  display:inline-block;
  margin-top:12px;
  font-size:18px;
  color:var(--brand-dark);
  border-bottom:1px solid currentColor;
  opacity:.92;
}
.tech-link:hover{ opacity:1; }

.product-layout{
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:20px;
}
.product-main{
  aspect-ratio:4 / 3;
  border-radius:16px;
  box-shadow:var(--shadow);
  object-fit:contain;
  background:var(--brand-surface);
  border:1px solid var(--line);
}
.product-info{
  background:var(--brand-surface);
  border:1px solid var(--line);
  border-radius:16px;
  padding:22px;
}
.product-list{ margin:0 0 20px; padding-left:22px; }
.product-list li{ margin-bottom:8px; }
.product-diagrams{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
.product-diagrams img{
  aspect-ratio:4 / 3;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--brand-surface);
  object-fit:contain;
}

.tech-block{ margin-bottom:26px; }
.sub-title{ margin:24px 0 14px; font-size:26px; }
.lidar-note{
  margin:0 0 14px;
  color:var(--ink-soft);
  font-size:15px;
  line-height:1.7;
}
.two-col{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:24px;
  align-items:center;
}
.tech-block .two-col img{
  aspect-ratio:4 / 3;
  width:96%;
  max-width:500px;
  justify-self:center;
  border-radius:12px;
  object-fit:contain;
  background:var(--brand-surface);
  border:1px solid var(--line);
}
.tech-copy{
  margin:0;
  line-height:1.9;
  color:var(--ink-soft);
  text-wrap:pretty;
}
.step-list{ display:grid; gap:16px; }
.step-row{
  display:grid;
  grid-template-columns:200px 1fr;
  gap:16px;
  align-items:center;
  background:var(--brand-surface);
  border:1px solid var(--line);
  border-radius:12px;
  padding:12px;
}
.step-row img{
  aspect-ratio:4 / 3;
  max-width:220px;
  object-fit:contain;
  background:var(--brand-surface);
  border-radius:10px;
  border:1px solid var(--line);
}
.step-label{
  margin:0 0 6px;
  font-size:19px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand-dark);
}
.step-row p:last-child{
  margin:0;
  font-size:18px;
  line-height:1.85;
  color:var(--ink-soft);
}

.story-layout{
  display:grid;
  grid-template-columns:minmax(220px, 0.85fr) minmax(0, 1.15fr);
  gap:24px;
  align-items:start;
}
.story-body{ margin:0; }
.story-body p{ margin:0 0 8px; }
.story-body{
  font-size:clamp(17px, 1.35vw, 20px);
  line-height:1.9;
  text-wrap:pretty;
}
.story-body p strong{
  font-weight:700;
}
.story-image{
  aspect-ratio:3 / 4;
  max-height:560px;
  border-radius:16px;
  box-shadow:var(--shadow);
}

.team-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:16px;
}
.team-card{
  padding:22px 20px;
  background:var(--brand-surface);
  border:1px solid var(--line);
  border-left:4px solid var(--line-strong);
  border-radius:12px;
  box-shadow:var(--shadow);
}
.team-role{
  margin:0;
  font-size:13px;
  letter-spacing:.08em;
  font-weight:700;
  color:var(--brand-dark);
}
.team-name{
  margin:8px 0 0;
  font-size:clamp(21px, 2.1vw, 27px);
  line-height:1.3;
  font-weight:600;
}

.contact-section{ background:var(--brand-surface); }
.contact-inner{ max-width:760px; text-align:center; }
.contact-heading{ grid-template-columns:1fr; justify-items:center; }
.contact-copy{ margin:0 0 24px; }
.contact-actions{
  display:flex;
  flex-direction:column;
  gap:12px;
  align-items:center;
}
.contact-btn{
  width:min(560px, 100%);
  display:grid;
  grid-template-columns:28px auto 1fr;
  align-items:center;
  gap:12px;
  text-align:left;
  background:var(--brand-main);
  color:#fff;
  border:1px solid var(--brand-main);
  border-radius:12px;
  padding:14px 16px;
  transition:.2s ease;
}
.contact-btn:hover{
  background:var(--brand-dark);
  border-color:var(--brand-dark);
}
.contact-icon{ width:24px; height:24px; display:inline-flex; }
.contact-icon svg{ width:100%; height:100%; }
.contact-label{ font-weight:700; }
.contact-label[lang="en"]{ font-size:18px; }
.contact-value{ justify-self:end; font-size:14px; opacity:.95; }

.footer{
  padding:34px 0;
  background:var(--brand-soft);
  border-top:1px solid var(--line);
}
.footer-inner{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:18px;
}
.footer-qr-wrap{
  width:min(760px, 100%);
  text-align:center;
}
.footer-qr-title{
  margin:0 0 10px;
  font-size:16px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand-dark);
}
.footer-qr-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:14px;
}
.footer-qr-item{
  margin:0;
  display:grid;
  gap:8px;
  justify-items:center;
}
.footer-qr-image{
  width:min(150px, 100%);
  aspect-ratio:1 / 1;
  object-fit:contain;
  object-position:center;
  padding:6px;
  background:#fff;
  border-radius:12px;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.footer-qr-item figcaption{
  font-size:13px;
  color:var(--ink-soft);
}
.footer-mail{
  margin:12px 0 0;
  font-size:14px;
  color:var(--ink-soft);
}
.footer-mail a{
  color:var(--brand-dark);
  text-decoration:none;
}
.footer-mail a:hover{ text-decoration:underline; }
.fine{ margin:0; color:var(--ink-soft); font-size:13px; }

@media (max-width:1024px){
  .section{ padding:72px 0; }
  .hero{ padding:18px 0 12px; }
  .hero-inner{
    grid-template-columns:1fr;
    gap:20px;
    min-height:auto;
  }
  .hero-media{ justify-content:center; order:2; }
  .hero-model{
    width:min(460px, 82vw);
    max-height:none;
  }
  .hero-content{
    order:1;
    max-width:unset;
    justify-self:center;
    text-align:center;
  }
  .hero-content h1 span,
  .hero-sub{ white-space:normal; }
  .solution-layout{ grid-template-columns:1fr; gap:22px; }
  .solution-wrap{
    grid-template-columns:1fr;
    gap:12px;
    --solution-thumb:min(66vw, 240px);
  }
  .solution-figure-round{
    justify-items:center;
  }
  .solution-main{
    height:auto;
    aspect-ratio:16 / 10;
  }
  .solution-float{
    width:var(--solution-thumb);
    margin:14px auto 0;
    justify-self:center;
  }
  .answer-grid{ grid-template-columns:repeat(2, minmax(0, 1fr)); }
  .product-layout,
  .two-col,
  .market-layout{ grid-template-columns:1fr; }
  .step-row{ grid-template-columns:1fr; }
  .step-row img{ max-width:100%; }
}

@media (max-width:768px){
  .section{ padding:56px 0; }
  .container{ padding:0 18px; }
  .nav-inner{ align-items:flex-start; flex-direction:column; gap:10px; }
  .nav-brand{ font-size:20px; }
  .nav-links{
    width:100%;
    justify-content:flex-start;
    gap:6px 12px;
  }
  .nav-links a{
    font-size:13px;
    padding:4px 0;
  }
  .hero-content h1{
    font-size:clamp(29px, 9.2vw, 42px);
    line-height:1.24;
  }
  .hero-sub{
    font-size:17px;
    line-height:1.75;
  }
  .answer-grid{ grid-template-columns:1fr; }
  .solution-subcopy,
  .solution-tail{ font-size:17px; }
  .answer-label{ font-size:20px; }
  .tech-link{ font-size:17px; }
  .condition-lead br,
  .issue-title br,
  .issue-desc br,
  .tech-copy br,
  .story-body br{
    display:none;
  }
  .section-ja{ font-size:22px; }
  .section-ja-solution{
    font-size:clamp(24px, 4.8vw, 30px);
    line-height:1.38;
  }
  .issues-grid,
  .team-grid,
  .image-grid-two,
  .condition-causes,
  .product-diagrams{ grid-template-columns:1fr; }
  .story-layout{ grid-template-columns:1fr; gap:14px; }
  .story-image{
    max-height:none;
    width:min(360px, 100%);
    margin:0 auto;
  }
  .issue-card{ padding:22px; border-radius:14px; }
  .footer-qr-grid{ grid-template-columns:repeat(2, minmax(0, 1fr)); }
  .contact-btn{
    grid-template-columns:24px 1fr;
    gap:8px 10px;
  }
  .contact-value{
    grid-column:2;
    justify-self:start;
  }
}

@media (max-width:560px){
  .section{ padding:48px 0; }
  .hero{ padding:14px 0 10px; }
  .hero-inner{ gap:14px; }
  .hero-model{ width:min(360px, 86vw); }
  .hero-content h1{
    font-size:clamp(26px, 9vw, 34px);
    line-height:1.22;
  }
  .hero-sub{ font-size:16px; }
  .issue-card,
  .team-card,
  .product-info,
  .market-chart-wrap{ padding:18px; }
  .step-label{ font-size:17px; }
  .step-row p:last-child{ font-size:16px; }
  .footer-qr-grid{ grid-template-columns:1fr; }
  .footer-qr-image{ width:min(180px, 100%); }
}

@media (max-width:420px){
  .container{ padding:0 14px; }
  .hero-content h1{ font-size:clamp(24px, 8.4vw, 30px); }
  .section-en{ font-size:18px; letter-spacing:.04em; }
  .section-ja{ font-size:20px; }
  .section-ja-solution{
    font-size:clamp(21px, 6.3vw, 25px);
    line-height:1.4;
  }
  .section-ja-solution br{ display:none; }
  .condition-lead,
  .issue-desc,
  .story-body{ font-size:17px; line-height:1.85; }
}

@media (max-width:375px){
  .container{ padding:0 12px; }
  .nav-brand{ font-size:18px; letter-spacing:.12em; }
  .nav-links{ gap:4px 10px; }
  .nav-links a{ font-size:12px; }
  .nav-links a[lang="en"]{ font-size:13px; }
  .hero{ padding:10px 0 8px; }
  .hero-inner{ gap:10px; }
  .hero-model{ width:min(320px, 88vw); }
  .hero-content h1{
    font-size:clamp(20px, 6.6vw, 24px);
    line-height:1.3;
    letter-spacing:0;
  }
  .hero-content h1 span{ white-space:nowrap; }
  .hero-sub{ font-size:15px; line-height:1.7; }
  .btn-primary{ margin-top:18px; padding:10px 18px; font-size:14px; }
  .section{ padding:42px 0; }
  .section-en{ font-size:16px; letter-spacing:.04em; }
  .section-ja{ font-size:19px; }
  .section-ja-solution{
    font-size:clamp(20px, 6.2vw, 23px);
    line-height:1.42;
  }
  .issue-title{ font-size:22px; line-height:1.25; }
  .issue-card,
  .team-card,
  .product-info,
  .market-chart-wrap{ padding:16px; }
  .team-name{ font-size:22px; }
  .step-label{ font-size:16px; }
  .step-row p:last-child{ font-size:15px; line-height:1.75; }
}