:root{
  --bg:#f4f7fb;
  --surface:#ffffff;
  --surface-soft:rgba(255,255,255,.72);
  --surface-strong:#ffffff;
  --text:#243247;
  --text-soft:#5f6f85;
  --title:#142033;
  --line:rgba(26,50,87,.10);
  --line-strong:rgba(26,50,87,.16);
  --brand:#ff7429;
  --brand-deep:#e66119;
  --navy:#0f2747;
  --shadow-lg:0 24px 70px rgba(19,40,74,.12);
  --shadow-md:0 14px 32px rgba(19,40,74,.08);
  --shadow-sm:0 8px 18px rgba(19,40,74,.06);
  --radius-xl:28px;
  --radius-lg:22px;
  --radius-md:16px;
  --wrap:min(1200px, calc(100% - 80px));
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
section[id]{scroll-margin-top:120px}
body{
  margin:0;
  color:var(--text);
  font-family:"Noto Sans JP",sans-serif;
  background:
    radial-gradient(circle at 12% 10%, rgba(255,116,41,.10), transparent 24%),
    radial-gradient(circle at 86% 22%, rgba(23,80,164,.12), transparent 28%),
    linear-gradient(180deg, #f7faff 0%, #f3f6fb 38%, #eef3f9 100%);
  position:relative;
  overflow-x:hidden;
}
body::before,
body::after{
  content:"";
  position:fixed;
  inset:auto;
  pointer-events:none;
  z-index:-1;
  border-radius:50%;
  filter:blur(60px);
  opacity:.55;
}
body::before{
  width:380px;
  height:380px;
  left:-120px;
  top:120px;
  background:rgba(255,116,41,.14);
}
body::after{
  width:460px;
  height:460px;
  right:-160px;
  top:420px;
  background:rgba(31,84,173,.12);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}

.wrap{
  width:var(--wrap);
  margin:0 auto;
}

.site-header{
  position:sticky;
  top:0;
  z-index:50;
  padding:14px 0 0;
  backdrop-filter:saturate(160%) blur(18px);
}
.site-header::before{
  content:"";
  position:absolute;
  inset:0 0 auto;
  height:100%;
  background:linear-gradient(180deg, rgba(247,250,255,.88), rgba(247,250,255,.56));
  border-bottom:1px solid rgba(255,255,255,.6);
  box-shadow:0 10px 30px rgba(15,39,71,.05);
  z-index:-1;
}
.header-inner{
  min-height:82px;
  display:grid;
  grid-template-columns:260px 1fr 110px;
  align-items:center;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
}
.brand img{
  width:192px;
  height:auto;
  object-fit:contain;
}
.main-nav{
  display:flex;
  justify-content:center;
  gap:44px;
}
.main-nav a{
  position:relative;
  text-decoration:none;
  color:#2e3b4e;
  font-size:17px;
  font-weight:700;
  letter-spacing:.04em;
  padding:8px 2px;
  transition:color .25s ease, transform .25s ease;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-4px;
  height:2px;
  border-radius:999px;
  background:linear-gradient(90deg, var(--brand), rgba(255,116,41,.25));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .28s ease;
}
.main-nav a:hover,
.main-nav a.active{
  color:var(--title);
}
.main-nav a:hover::after,
.main-nav a.active::after{
  transform:scaleX(1);
}
.lang-switch{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:10px;
  color:#5f6f85;
  font-size:13px;
  font-weight:800;
  letter-spacing:.08em;
}
.lang-switch .active{color:var(--title)}
.lang-switch .divider{
  width:1px;
  height:15px;
  background:linear-gradient(180deg, rgba(255,116,41,.2), rgba(255,116,41,.9), rgba(255,116,41,.2));
}

main section{
  position:relative;
}
main section::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(20,32,51,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(20,32,51,.035) 1px, transparent 1px);
  background-size:30px 30px;
  mask-image:linear-gradient(180deg, transparent, rgba(0,0,0,.55) 15%, rgba(0,0,0,.55) 85%, transparent);
  opacity:.18;
}


.hero{
  padding:56px 0 52px;
}
.hero-premium{
  position:relative;
}
.hero-deco,
.hero-grid-lines{
  position:absolute;
  pointer-events:none;
}
.hero-deco-left,
.hero-deco-right{
  width:320px;
  height:320px;
  top:80px;
  border-radius:50%;
  filter:blur(4px);
  opacity:.9;
}
.hero-deco-left{
  left:-120px;
  background:radial-gradient(circle, rgba(255,116,41,.16) 0%, rgba(255,116,41,.05) 44%, transparent 72%);
}
.hero-deco-right{
  right:-120px;
  background:radial-gradient(circle, rgba(43,114,215,.18) 0%, rgba(43,114,215,.05) 40%, transparent 72%);
}
.hero-grid-lines{
  inset:50px 0 auto;
  height:500px;
  background:
    linear-gradient(180deg, rgba(20,32,51,.04), transparent),
    repeating-linear-gradient(90deg, rgba(20,32,51,.04) 0 1px, transparent 1px 54px);
  opacity:.28;
  mask-image:linear-gradient(90deg, transparent, rgba(0,0,0,.9) 12%, rgba(0,0,0,.9) 88%, transparent);
}
.hero-ref{
  width:var(--wrap);
  margin:0 auto;
  position:relative;
  min-height:auto;
  display:grid;
  grid-template-columns:260px minmax(360px, 1fr) 300px;
  grid-template-areas:
    ". top ."
    "left ring right"
    ". bottom .";
  gap:26px 34px;
  align-items:center;
  justify-content:center;
}
.hero-card{
  position:relative;
  padding:8px 10px;
  background:transparent;
  backdrop-filter:none;
  border:none;
  box-shadow:none;
  border-radius:0;
  overflow:visible;
}
.hero-card::before,
.hero-card::after{
  content:none;
}
.hero-card h3,
.hero-card h4{margin:0}
.hero-card h3{
  color:var(--brand-deep);
  font-size:20px;
  font-weight:900;
  line-height:1.2;
}
.hero-card h4{
  margin-top:8px;
  color:#1c3558;
  font-size:15px;
  font-weight:800;
  line-height:1.45;
}
.hero-card h4 span{
  color:#6c7c93;
  font-size:12px;
  font-weight:700;
}
.hero-card p{
  margin:14px 0 0;
  color:var(--text-soft);
  font-size:12px;
  line-height:1.9;
}
.hero-top{grid-area:top; max-width:500px; justify-self:center; text-align:left;}
.hero-left{grid-area:left;}
.hero-right{grid-area:right;}
.hero-bottom{grid-area:bottom; max-width:620px; justify-self:center; text-align:left;}
.hero-ring{
  grid-area:ring;
  position:relative;
  width:100%;
  max-width:720px;
  min-height:340px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:center;
  filter:drop-shadow(0 18px 32px rgba(19,40,74,.10));
}
.hero-ring::before,
.hero-ring::after{
  content:"";
  position:absolute;
  border-radius:50%;
  pointer-events:none;
}
.hero-ring::before{
  inset:16px 22px;
  border:1px solid rgba(255,116,41,.14);
}
.hero-ring::after{
  inset:0 70px;
  border:1px dashed rgba(28,53,88,.12);
}
.hero-ring-image{
  width:100%;
  height:auto;
  animation:floatRing 6.5s ease-in-out infinite;
}
.hero-ring-text{
  margin:0;
  position:absolute;
  left:16%;
  right:16%;
  top:50%;
  transform:translateY(-50%);
  text-align:center;
  color:var(--navy);
  font-size:15px;
  font-weight:800;
  line-height:1.45;
  background:none;
  box-shadow:none;
  border:none;
  padding:0;
  text-shadow:0 1px 0 rgba(255,255,255,.55);
}
.concept,.oem,.contact,.pb,.company{
  padding-top:100px;
}
.concept{
  background:#ffffff;
}
.section-title{
  margin:0;
  text-align:center;
  color:var(--title);
  font-size:38px;
  font-weight:900;
  letter-spacing:-.03em;
  line-height:1.2;
}
.section-subtitle{
  margin:12px auto 0;
  max-width:920px;
  text-align:center;
  color:var(--text-soft);
  font-size:15px;
  line-height:1.85;
}
.section-title::after{
  content:"";
  display:block;
  width:92px;
  height:4px;
  margin:18px auto 0;
  border-radius:999px;
  background:linear-gradient(90deg, rgba(255,116,41,.2), var(--brand), rgba(255,116,41,.2));
}

.concept-grid,
.oem-grid,
.product-grid{
  margin-top:44px;
}
.concept-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:22px;
}
.concept-card,
.oem-card,
.product-card,
.company-table,
.qr-box{
  background:linear-gradient(180deg, rgba(255,255,255,.90), rgba(255,255,255,.76));
  border:1px solid rgba(255,255,255,.82);
  box-shadow:var(--shadow-sm);
  backdrop-filter:blur(14px);
}
.concept-card{
  min-height:280px;
  border-radius:var(--radius-xl);
  padding:30px 28px 24px;
  position:relative;
  overflow:hidden;
  transition:transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.concept-card::before,
.oem-card::before,
.product-card::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg, rgba(255,255,255,.35), transparent 45%, rgba(255,116,41,.05));
  pointer-events:none;
}
.concept-card:hover,
.oem-card:hover,
.product-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(255,116,41,.18);
}
.concept-card h3{
  margin:0;
  color:#617088;
  font-size:15px;
  font-weight:800;
  letter-spacing:.28em;
}
.concept-card h4{
  margin:14px 0 18px;
  color:var(--title);
  font-size:30px;
  font-weight:900;
  line-height:1.4;
}
.concept-card p{
  margin:0 0 12px;
  color:var(--text-soft);
  font-size:15px;
  line-height:1.95;
}

.oem-grid{
  display:grid;
  grid-template-columns:repeat(5, minmax(0,1fr));
  gap:18px;
}
.oem-card{
  position:relative;
  min-height:240px;
  border-radius:24px;
  padding:30px 18px 22px;
  text-align:center;
  overflow:hidden;
  transition:transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.oem-card::after{
  content:"";
  position:absolute;
  top:16px;
  right:16px;
  width:34px;
  height:34px;
  border-radius:50%;
  border:1px solid rgba(255,116,41,.18);
}
.oem-icon{
  width:72px;
  height:72px;
  margin:0 auto 18px;
  border-radius:22px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(180deg, rgba(255,116,41,.13), rgba(255,116,41,.05));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.8);
}
.oem-icon img{width:38px;height:38px}
.oem-card h3{
  margin:0 0 14px;
  color:var(--title);
  font-size:22px;
  font-weight:800;
}
.oem-card p{
  margin:0;
  color:var(--text-soft);
  font-size:14px;
  line-height:1.86;
  text-align:left;
}

.contact .wrap{
  position:relative;
}
.contact .wrap::before{
  content:"";
  position:absolute;
  left:50%;
  top:82px;
  width:min(900px, calc(100% - 40px));
  height:240px;
  transform:translateX(-50%);
  border-radius:40px;
  background:linear-gradient(135deg, rgba(255,255,255,.32), rgba(255,255,255,.12));
  border:1px solid rgba(255,255,255,.42);
  box-shadow:var(--shadow-md);
  z-index:-1;
}
.qr-grid{
  display:flex;
  justify-content:center;
  align-items:flex-start;
  gap:56px;
  margin-top:40px;
}
.qr-box{
  position:relative;
  width:264px;
  padding:16px 16px 18px;
  border-radius:28px;
  background:linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,255,255,.84));
  border:1px solid rgba(255,255,255,.92);
  box-shadow:0 18px 38px rgba(19,40,74,.10);
}
.qr-box::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:28px;
  background:linear-gradient(135deg, rgba(255,255,255,.45), transparent 50%, rgba(255,116,41,.05));
  pointer-events:none;
}
.qr-frame{
  position:relative;
  width:100%;
  aspect-ratio:1 / 1;
  border-radius:22px;
  padding:16px;
  background:linear-gradient(180deg, #fff, #f9fbff);
  border:1px dashed rgba(255,116,41,.30);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.88), inset 0 0 0 1px rgba(255,255,255,.55);
}
.qr-frame::before,
.qr-frame::after{
  content:"";
  position:absolute;
  width:30px;
  height:30px;
  border-color:var(--brand);
  border-style:solid;
  opacity:.75;
}
.qr-frame::before{
  top:18px;
  left:18px;
  border-width:3px 0 0 3px;
  border-top-left-radius:10px;
}
.qr-frame::after{
  right:18px;
  bottom:18px;
  border-width:0 3px 3px 0;
  border-bottom-right-radius:10px;
}
.qr-placeholder{
  width:100%;
  height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:16px;
  color:#7a8798;
  font-size:16px;
  font-weight:800;
  letter-spacing:.04em;
  background:
    linear-gradient(45deg, rgba(20,32,51,.035) 25%, transparent 25%, transparent 75%, rgba(20,32,51,.035) 75%),
    linear-gradient(45deg, rgba(20,32,51,.035) 25%, transparent 25%, transparent 75%, rgba(20,32,51,.035) 75%);
  background-size:18px 18px;
  background-position:0 0, 9px 9px;
}
.qr-label{
  margin-top:12px;
  text-align:center;
  color:var(--title);
  font-size:16px;
  font-weight:800;
}
.qr-note{
  margin:24px 0 0;
  text-align:center;
  color:#6d7d94;
  font-size:16px;
  font-weight:600;
}

.product-grid{
  margin-top:44px;
}
.concept-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:22px;
}
.concept-card,
.oem-card,
.product-card,
.company-table,
.qr-box{
  background:linear-gradient(180deg, rgba(255,255,255,.90), rgba(255,255,255,.76));
  border:1px solid rgba(255,255,255,.82);
  box-shadow:var(--shadow-sm);
  backdrop-filter:blur(14px);
}
.concept-card{
  min-height:280px;
  border-radius:var(--radius-xl);
  padding:30px 28px 24px;
  position:relative;
  overflow:hidden;
  transition:transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.concept-card::before,
.oem-card::before,
.product-card::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg, rgba(255,255,255,.35), transparent 45%, rgba(255,116,41,.05));
  pointer-events:none;
}
.concept-card:hover,
.oem-card:hover,
.product-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(255,116,41,.18);
}
.concept-card h3{
  margin:0;
  color:#617088;
  font-size:15px;
  font-weight:800;
  letter-spacing:.28em;
}
.concept-card h4{
  margin:14px 0 18px;
  color:var(--title);
  font-size:30px;
  font-weight:900;
  line-height:1.4;
}
.concept-card p{
  margin:0 0 12px;
  color:var(--text-soft);
  font-size:15px;
  line-height:1.95;
}

.oem-grid{
  display:grid;
  grid-template-columns:repeat(5, minmax(0,1fr));
  gap:18px;
}
.oem-card{
  position:relative;
  min-height:240px;
  border-radius:24px;
  padding:30px 18px 22px;
  text-align:center;
  overflow:hidden;
  transition:transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.oem-card::after{
  content:"";
  position:absolute;
  top:16px;
  right:16px;
  width:34px;
  height:34px;
  border-radius:50%;
  border:1px solid rgba(255,116,41,.18);
}
.oem-icon{
  width:72px;
  height:72px;
  margin:0 auto 18px;
  border-radius:22px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(180deg, rgba(255,116,41,.13), rgba(255,116,41,.05));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.8);
}
.oem-icon img{width:38px;height:38px}
.oem-card h3{
  margin:0 0 14px;
  color:var(--title);
  font-size:22px;
  font-weight:800;
}
.oem-card p{
  margin:0;
  color:var(--text-soft);
  font-size:14px;
  line-height:1.86;
  text-align:left;
}

.contact .wrap{
  position:relative;
}
.contact .wrap::before{
  content:"";
  position:absolute;
  left:50%;
  top:82px;
  width:min(900px, calc(100% - 40px));
  height:240px;
  transform:translateX(-50%);
  border-radius:40px;
  background:linear-gradient(135deg, rgba(255,255,255,.32), rgba(255,255,255,.12));
  border:1px solid rgba(255,255,255,.42);
  box-shadow:var(--shadow-md);
  z-index:-1;
}
.qr-grid{
  display:flex;
  justify-content:center;
  gap:72px;
  margin-top:46px;
}
.qr-box{
  position:relative;
  width:280px;
  height:280px;
  border-radius:28px;
  border:1px dashed rgba(255,116,41,.36);
  background:
    linear-gradient(180deg, rgba(255,255,255,.94), rgba(255,255,255,.78)),
    radial-gradient(circle at 18% 18%, rgba(255,116,41,.08), transparent 32%);
}
.qr-box::before,
.qr-box::after{
  content:"";
  position:absolute;
  width:34px;
  height:34px;
  border-color:var(--brand);
  border-style:solid;
  opacity:.8;
}
.qr-box::before{
  top:18px;
  left:18px;
  border-width:3px 0 0 3px;
  border-top-left-radius:12px;
}
.qr-box::after{
  right:18px;
  bottom:18px;
  border-width:0 3px 3px 0;
  border-bottom-right-radius:12px;
}
.qr-note{
  margin:26px 0 0;
  text-align:center;
  color:#6d7d94;
  font-size:18px;
  font-weight:600;
}

.product-grid{
  display:grid;
  grid-template-columns:repeat(4, minmax(0,1fr));
  gap:20px;
}
.product-card{
  position:relative;
  border-radius:28px;
  overflow:hidden;
  transition:transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.product-card img{
  width:100%;
  aspect-ratio:1.33/1;
  object-fit:cover;
  transform:scale(1.001);
  transition:transform .55s ease;
}
.product-card:hover img{
  transform:scale(1.05);
}
.product-card h3{
  margin:22px 0 26px;
  text-align:center;
  color:var(--title);
  font-size:26px;
  font-weight:900;
  letter-spacing:.24em;
}

.company{
  padding-bottom:56px;
}
.company-table{
  margin-top:38px;
  border-radius:28px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.78);
}
.company-table .row{
  display:grid;
  grid-template-columns:240px 1fr;
}
.company-table .th,
.company-table .td{
  padding:22px 24px;
  font-size:15px;
  line-height:1.95;
  border-bottom:1px solid rgba(20,32,51,.08);
}
.company-table .row:last-child .th,
.company-table .row:last-child .td{border-bottom:0}
.company-table .th{
  background:linear-gradient(180deg, rgba(17,39,71,.96), rgba(22,52,95,.96));
  color:#fff;
  font-size:19px;
  font-weight:800;
  letter-spacing:.08em;
}
.company-table .td{
  background:linear-gradient(180deg, rgba(255,255,255,.92), rgba(250,252,255,.82));
  color:var(--text-soft);
}

.site-footer{
  position:relative;
  background:linear-gradient(90deg, #102542, #193860 58%, #0f2747);
  color:rgba(255,255,255,.86);
  text-align:center;
  font-size:15px;
  letter-spacing:.04em;
  padding:22px 10px;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg, transparent, rgba(255,255,255,.08), transparent);
  opacity:.5;
  pointer-events:none;
}


@media (max-width: 1200px){
  :root{--wrap:min(1000px, calc(100% - 48px));}
  .hero-ref{
    grid-template-columns:240px minmax(320px, 1fr) 260px;
    gap:22px;
  }
  .section-title{font-size:34px;}
}

@media (max-width: 980px){
  :root{--wrap:calc(100% - 32px);}
  .header-inner{grid-template-columns:1fr; gap:14px; padding-bottom:14px;}
  .brand, .lang-switch, .main-nav{justify-content:center;}
  .hero-ref{
    grid-template-columns:1fr;
    grid-template-areas:
      "top"
      "ring"
      "left"
      "right"
      "bottom";
  }
  .hero-top, .hero-bottom, .hero-left, .hero-right{max-width:none; justify-self:stretch;}
  .hero-ring{max-width:none; min-height:280px;}
  .concept-grid{grid-template-columns:1fr;}
  .oem-grid{grid-template-columns:repeat(2, minmax(0,1fr));}
  .product-grid{grid-template-columns:repeat(2, minmax(0,1fr));}
  .company-table .row{grid-template-columns:180px 1fr;}
}

@media (max-width: 640px){
  .main-nav{gap:24px; flex-wrap:wrap;}
  .section-title{font-size:28px;}
  .section-subtitle{font-size:14px;}
  .hero-card h3{font-size:24px;}
  .hero-ring-text{font-size:18px; left:14%; right:14%;}
  .oem-grid, .product-grid{grid-template-columns:1fr;}
  .oem-card{
    min-height:auto;
    padding:18px 16px;
    display:grid;
    grid-template-columns:64px minmax(0, 1fr);
    grid-template-areas:
      "icon title"
      "icon desc";
    align-items:center;
    column-gap:14px;
    row-gap:6px;
    text-align:left;
  }
  .oem-card::after{
    top:14px;
    right:14px;
    width:28px;
    height:28px;
  }
  .oem-icon{
    grid-area:icon;
    width:56px;
    height:56px;
    margin:0;
    border-radius:18px;
  }
  .oem-icon img{width:28px;height:28px;}
  .oem-card h3{
    grid-area:title;
    margin:0;
    font-size:20px;
    line-height:1.3;
    align-self:end;
  }
  .oem-card p{
    grid-area:desc;
    margin:0;
    font-size:13px;
    line-height:1.7;
    align-self:start;
  }
  .qr-grid{flex-direction:column; align-items:center; gap:28px;}
  .qr-box{width:min(280px, 100%); height:280px;}
  .company-table .row{grid-template-columns:1fr;}
  .company-table .th{font-size:17px;}
}

.reveal-up,
.reveal-soft{
  opacity:0;
  transform:translateY(34px);
  transition:opacity .8s ease, transform .8s cubic-bezier(.22,1,.36,1);
  will-change:transform, opacity;
}
.is-visible{
  opacity:1;
  transform:none;
}

@keyframes floatRing{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-10px)}
}

@media (max-width: 1180px){
  .header-inner{
    grid-template-columns:1fr;
    justify-items:center;
    gap:10px;
    padding-bottom:12px;
  }
  .main-nav{gap:26px; flex-wrap:wrap}
  .hero-ref{
    min-height:auto;
    display:grid;
    gap:22px;
  }
  .hero-top,.hero-left,.hero-right,.hero-bottom,.hero-ring{
    position:relative;
    left:auto;
    right:auto;
    top:auto;
    width:auto;
  }
  .hero-ring{
    width:min(760px, 100%);
    margin:8px auto 0;
  }
  .hero-ring-text{
    left:15%;
    right:15%;
    top:17%;
    font-size:20px;
  }
  .concept-grid{grid-template-columns:1fr}
  .oem-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
  .product-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
}

@media (max-width: 760px){
  :root{--wrap:min(100%, calc(100% - 24px))}
  .site-header{padding-top:8px}
  .header-inner{min-height:auto}
  .brand img{width:156px}
  .main-nav{gap:16px}
  .main-nav a{font-size:14px}
  .lang-switch{font-size:12px}
  .hero{padding:28px 0 14px}
  .hero-card{
    padding:20px 18px;
    border-radius:20px;
  }
  .hero-card h3{font-size:23px}
  .hero-card h4{font-size:16px}
  .hero-card p{font-size:13px}
  .hero-ring::before,.hero-ring::after{display:none}
  .hero-ring-text{
    position:absolute;
    left:16%;
    right:16%;
    top:18%;
    font-size:16px;
    line-height:1.55;
  }
  .concept,.oem,.contact,.pb,.company{padding-top:74px}
  .section-title{font-size:26px}
  .section-subtitle{font-size:13px}
  .concept-card h4{font-size:24px}
  .oem-grid,.product-grid{grid-template-columns:1fr}
  .oem-card{min-height:unset}
  .qr-grid{gap:20px; flex-direction:column; align-items:center}
  .qr-box{width:230px; padding:14px 14px 16px}
  .qr-note{font-size:13px}
  .company-table .row{grid-template-columns:1fr}
  .company-table .th{
    font-size:16px;
    padding:16px 18px;
  }
  .company-table .td{
    padding:16px 18px;
    font-size:14px;
  }
}

.hero-left,.hero-right{max-width:240px;}
.hero-card h3{margin-bottom:8px;}
.hero-card h4{margin-top:4px;}
.hero-card p br{display:none;}
@media (max-width: 1200px){
  .hero-card{padding:6px 8px;}
  .hero-card h3{font-size:18px;}
  .hero-card h4{font-size:14px;}
  .hero-card p{font-size:11px;}
  .hero-ring-text{font-size:14px;}
}


/* v6 qr embed refinements */
.contact .section-title{font-size:30px;}
.contact .section-subtitle{font-size:14px;}
.contact .wrap::before{top:92px;height:260px;width:min(940px, calc(100% - 40px));}
.qr-grid{position:relative;z-index:1;align-items:flex-start;}
.qr-box{display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding:14px 14px 18px;width:260px;height:auto;box-shadow:0 16px 34px rgba(19,40,74,.10);}
.qr-frame{display:flex;align-items:center;justify-content:center;padding:12px;background:linear-gradient(180deg,#ffffff,#fbfcff);}
.qr-image{width:100%;height:auto;display:block;border-radius:12px;background:#fff;box-shadow:0 6px 18px rgba(19,40,74,.06);}
.qr-placeholder{display:none;}
.qr-label{margin-top:14px;font-size:15px;letter-spacing:.04em;}
@media (max-width:760px){.contact .section-title{font-size:24px;}.contact .section-subtitle{font-size:13px;}.contact .wrap::before{top:76px;height:unset;bottom:110px;}}

/* v7 enlarge contact background panel to fully contain QR cards */
.contact .wrap::before{
  top:86px;
  height:360px;
  width:min(980px, calc(100% - 32px));
  border-radius:42px;
}
.qr-grid{
  margin-top:52px;
}

@media (max-width:760px){
  .contact .wrap::before{
    top:78px;
    bottom:92px;
    height:auto;
    width:min(100%, calc(100% - 20px));
  }
}

/* v8 contact spacing and alignment refinements */
.contact .wrap{
  padding-top: 6px;
}
.contact .section-title{
  font-size: 28px;
  line-height: 1.25;
  margin-bottom: 18px;
}
.contact .section-subtitle{
  font-size: 14px;
  margin: 0 auto 22px;
}
.contact .wrap::before{
  top: 128px;
  height: 372px;
  width: min(1020px, calc(100% - 36px));
  border-radius: 40px;
}
.qr-grid{
  margin-top: 70px;
  gap: 76px;
  justify-content: center;
  align-items: flex-start;
}
.qr-box{
  width: 262px;
  padding: 18px 18px 20px;
  border-radius: 30px;
}
.qr-frame{
  padding: 14px;
  border-radius: 24px;
}
.qr-label{
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.2;
}
.qr-note{
  margin-top: 28px;
  font-size: 16px;
}

@media (max-width: 760px){
  .contact .section-title{
    font-size: 22px;
    margin-bottom: 12px;
  }
  .contact .section-subtitle{
    font-size: 13px;
    margin-bottom: 16px;
  }
  .contact .wrap::before{
    top: 100px;
    bottom: 96px;
    height: auto;
    width: min(100%, calc(100% - 20px));
  }
  .qr-grid{
    margin-top: 40px;
    gap: 24px;
  }
  .qr-box{
    width: 236px;
    padding: 14px 14px 16px;
  }
  .qr-label{
    margin-top: 12px;
    font-size: 15px;
  }
  .qr-note{
    font-size: 14px;
    margin-top: 20px;
  }
}


.pb-subtitle{
  margin-top:10px;
  margin-bottom:34px;
}
.album-entry-grid{margin-bottom:34px;}
.album-entry{
  border:none;
  cursor:pointer;
  text-align:left;
  width:100%;
  font:inherit;
  background:rgba(255,255,255,.9);
}
.album-entry:hover{transform:translateY(-6px);}
.album-browser{
  margin:26px auto 0;
  padding:32px;
  background:rgba(255,255,255,.64);
  border:1px solid rgba(255,255,255,.72);
  border-radius:30px;
  box-shadow:var(--shadow-lg);
}
.album-browser-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:22px;
}
.album-eyebrow{
  margin:0 0 8px;
  font-size:11px;
  letter-spacing:.24em;
  color:var(--brand-deep);
  font-weight:800;
}
.album-title{
  margin:0;
  font-size:28px;
  color:var(--title);
}
.album-back{
  border:none;
  background:rgba(255,116,41,.12);
  color:var(--brand-deep);
  font-size:14px;
  font-weight:800;
  padding:12px 18px;
  border-radius:999px;
  cursor:pointer;
}
.album-grid{
  display:grid;
  grid-template-columns:repeat(5, minmax(0, 1fr));
  gap:20px;
}
.album-card{
  border:none;
  border-radius:24px;
  overflow:hidden;
  background:#fff;
  box-shadow:var(--shadow-md);
  text-align:left;
}
.album-subcard{cursor:pointer; padding:0;}
.album-cover{aspect-ratio: 4 / 3; background:#f3f6fb;}
.album-cover img,
.album-photo-frame img{width:100%;height:100%;object-fit:cover;display:block;}
.album-card-body{padding:16px 16px 18px;}
.album-card-body h4{
  margin:0 0 8px;
  font-size:17px;
  color:var(--title);
}
.album-card-body p{
  margin:0;
  font-size:13px;
  color:var(--text-soft);
}
.album-grid-products{
  display:grid;
  grid-template-columns:repeat(4, minmax(220px, 1fr));
  gap:22px;
  align-items:start;
}
.album-photo{
  text-decoration:none;
  background:#fff;
  border-radius:22px;
  padding:14px;
  box-shadow:var(--shadow-sm);
  display:flex;
  flex-direction:column;
  height:100%;
  transition:transform .25s ease, box-shadow .25s ease;
}
.album-photo:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
}
.album-photo-frame{
  aspect-ratio:1 / 1;
  overflow:hidden;
  border-radius:16px;
  background:#f4f7fb;
}
.album-photo span{
  display:block;
  margin-top:12px;
  font-size:13px;
  font-weight:700;
  color:#3a4961;
  text-align:center;
}
@media (max-width: 1180px){
  .album-grid{grid-template-columns:repeat(3, minmax(0, 1fr));}
  .album-grid-products{grid-template-columns:repeat(3, minmax(200px, 1fr));}
}
@media (max-width: 860px){
  .album-browser{padding:24px 18px;}
  .album-browser-head{align-items:flex-start; flex-direction:column;}
  .album-grid{grid-template-columns:repeat(2, minmax(0, 1fr));}
  .album-grid-products{grid-template-columns:repeat(2, minmax(180px, 1fr));}
}
@media (max-width: 560px){
  .album-grid, .album-grid-products{grid-template-columns:1fr;}
  .album-title{font-size:22px;}
}


/* album layout hotfix */
#albumBrowser{
  width:min(1280px, calc(100vw - 64px));
}
#albumGrid.album-grid-products{
  display:grid !important;
  grid-template-columns:repeat(auto-fit, minmax(220px, 1fr)) !important;
  gap:22px !important;
  align-items:start;
}
#albumGrid.album-grid-products > *{
  min-width:0;
  width:100%;
}
#albumGrid.album-grid-products .album-photo{
  display:flex !important;
}
@media (max-width: 860px){
  #albumBrowser{width:min(100%, calc(100vw - 28px));}
  #albumGrid.album-grid-products{
    grid-template-columns:repeat(2, minmax(180px, 1fr)) !important;
  }
}
@media (max-width: 560px){
  #albumGrid.album-grid-products{
    grid-template-columns:1fr !important;
  }
}

/* section zoning: full-width backgrounds only, no inner large panel */
main > section{
  isolation:isolate;
}

main > section::after,
main > section:nth-of-type(even)::after,
main > section:nth-of-type(odd):not(.hero)::after{
  content:none !important;
  display:none !important;
}


/* v9 full-width section zoning */
body{
  background:#f6f6f6;
}
body::before,
body::after{
  display:none;
}

main > section{
  position:relative;
  width:100%;
  padding:120px 0;
  background:#ffffff;
  overflow:hidden;
}

main > section::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:none;
  opacity:1;
  mask-image:none;
}

main > section:nth-of-type(even){
  background:#ffffff;
}

.hero{
  padding:56px 0 72px;
  background:
    radial-gradient(circle at 12% 18%, rgba(255,116,41,.10), transparent 22%),
    radial-gradient(circle at 88% 20%, rgba(23,80,164,.10), transparent 26%),
    linear-gradient(180deg, #f8fbff 0%, #f2f6fb 100%);
}

.concept,.oem,.contact,.pb,.company{
  padding-top:120px;
  padding-bottom:120px;
}

.concept{
  background:#ffffff;
}

.oem{
  background:#ffffff;
}

.contact{
  background:linear-gradient(180deg, #fffffff 0%, #f6f6f6 100%);
}

.pb{
  background:#ffffff;
}

.company{
  padding-bottom:120px;
  background:linear-gradient(180deg, #ffffff 0%, #efefef 100%);
}

.wrap{
  position:relative;
  z-index:1;
}

@media (max-width: 980px){
  main > section{
    padding:92px 0;
  }

  .concept,.oem,.contact,.pb,.company{
    padding-top:92px;
    padding-bottom:92px;
  }
}

@media (max-width: 760px){
  main > section{
    padding:74px 0;
  }

  .hero{
    padding:28px 0 40px;
  }

  .concept,.oem,.contact,.pb,.company{
    padding-top:74px;
    padding-bottom:74px;
  }
}


/* section zoning: full-width backgrounds only, no inner large panel */
main > section{
  isolation:isolate;
}

main > section::after,
main > section:nth-of-type(even)::after,
main > section:nth-of-type(odd):not(.hero)::after{
  content:none !important;
  display:none !important;
}

/* ===== 2026-04 visual tuning: warmer palette + smaller/lighter Japanese typography ===== */
:root{
  --brand:#e4a24b;
  --brand-deep:#cf7d1d;
  --title:#2b241c;
  --text:#53493f;
  --text-soft:#74685c;
}

body,
button,
input,
select,
textarea{
  font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic Medium","Yu Gothic","Meiryo","Noto Sans JP",sans-serif;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

.main-nav a{
  font-size:15px;
  font-weight:600;
  letter-spacing:.05em;
}
.lang-switch{
  font-size:12px;
  font-weight:700;
}

.section-title{
  font-size:34px;
  font-weight:700;
  letter-spacing:.08em;
  color:#2f271f;
}
.section-subtitle{
  font-size:14px;
  font-weight:400;
  line-height:1.9;
  color:#7d7063;
}

.hero-card h3{
  font-size:18px;
  font-weight:700;
  color:var(--brand-deep);
}
.hero-card h4{
  font-size:14px;
  font-weight:600;
}
.hero-card h4 span{
  font-size:11px;
  font-weight:500;
}
.hero-card p{
  font-size:11.5px;
  line-height:1.9;
  font-weight:400;
  color:#7a6c5d;
}
.hero-ring-text{
  font-weight:600;
  letter-spacing:.04em;
}

.concept-card h3{
  font-size:14px;
  font-weight:700;
  color:#b8822e;
}
.concept-card h4{
  font-size:27px;
  font-weight:700;
  letter-spacing:.01em;
  color:#2f271f;
}
.concept-card p{
  font-size:14px;
  line-height:1.95;
  font-weight:400;
  color:#786d61;
}

.oem-card h3{
  font-size:20px;
  font-weight:700;
  color:#2f271f;
}
.oem-card p{
  font-size:13px;
  line-height:1.9;
  font-weight:400;
  color:#7a6f63;
}

.product-card h3{
  font-size:24px;
  font-weight:700;
  letter-spacing:.16em;
  color:#2f271f;
}
.album-card-body h4{
  font-size:16px;
  font-weight:700;
}
.album-card-body p,
.album-photo span,
.album-back,
.album-eyebrow{
  font-weight:400;
}

/* company section warm theme */
.company-table{
  border:1px solid rgba(212,145,55,.18);
  box-shadow:0 16px 36px rgba(205,150,72,.08);
}
.company-table .th,
.company-table .td{
  font-size:14px;
  line-height:1.9;
  padding:20px 24px;
}
.company-table .th{
  background:linear-gradient(180deg, #e7a54c, #d78628);
  color:#fffaf2;
  font-size:17px;
  font-weight:700;
  letter-spacing:.05em;
  border-bottom:1px solid rgba(255,255,255,.15);
}
.company-table .td{
  background:linear-gradient(180deg, rgba(255,251,245,.96), rgba(255,248,239,.88));
  color:#786a5d;
  font-weight:400;
}
.company-table .row:last-child .th{
  background:linear-gradient(180deg, #dfa049, #cf7e1d);
}

.site-footer{
  background:linear-gradient(90deg, #9d6421, #b5792d 58%, #8f571d);
  font-size:14px;
  font-weight:400;
}

@media (max-width:980px){
  .section-title{font-size:30px;}
  .concept-card h4{font-size:24px;}
  .oem-card h3{font-size:18px;}
  .product-card h3{font-size:21px;}
  .company-table .th{font-size:16px;}
  .company-table .th,
  .company-table .td{font-size:13.5px;}
}

@media (max-width:760px){
  .main-nav a{font-size:14px;}
  .section-title{font-size:26px;}
  .section-subtitle{font-size:13px;}
  .concept-card h4{font-size:22px;}
  .oem-card h3{font-size:17px;}
  .product-card h3{font-size:20px;}
  .company-table .th{font-size:15px;}
  .company-table .td{font-size:13px;}
}

/* ===== 2026-04 mobile layout optimization ===== */
@media (max-width: 760px){
  :root{
    --wrap:min(100%, calc(100% - 24px));
  }

  section[id]{scroll-margin-top:110px;}

  .site-header{
    padding:8px 0 0;
  }

  .site-header::before{
    background:linear-gradient(180deg, rgba(248,251,255,.96), rgba(248,251,255,.90));
    box-shadow:0 8px 24px rgba(15,39,71,.06);
  }

  .header-inner{
    min-height:auto;
    display:grid;
    grid-template-columns:minmax(0,1fr) auto;
    grid-template-areas:
      "brand lang"
      "nav nav";
    align-items:center;
    gap:10px 12px;
    padding:0 0 12px;
  }

  .brand{
    grid-area:brand;
    justify-content:flex-start;
    align-self:start;
  }

  .brand img{
    width:148px;
    max-width:100%;
  }

  .lang-switch{
    grid-area:lang;
    justify-content:flex-end;
    align-self:start;
    font-size:12px;
    line-height:1;
    padding-top:6px;
    white-space:nowrap;
  }

  .main-nav{
    grid-area:nav;
    display:flex;
    justify-content:center;
    align-items:center;
    flex-wrap:nowrap;
    gap:0;
    width:100%;
    padding:4px;
    border-radius:999px;
    background:rgba(255,255,255,.82);
    border:1px solid rgba(20,32,51,.08);
    box-shadow:0 8px 22px rgba(19,40,74,.06);
  }

  .main-nav a{
    flex:1 1 0;
    min-width:0;
    text-align:center;
    font-size:13px;
    line-height:1.2;
    letter-spacing:.02em;
    padding:10px 6px;
    border-radius:999px;
  }

  .main-nav a::after{
    bottom:2px;
    left:10px;
    right:10px;
  }

  .hero{
    padding:24px 0 40px;
  }

  .hero-ref{
    gap:18px;
  }

  .hero-card{
    padding:18px 16px;
    background:linear-gradient(180deg, rgba(255,255,255,.84), rgba(255,255,255,.66));
    border:1px solid rgba(255,255,255,.88);
    border-radius:20px;
    box-shadow:0 10px 24px rgba(19,40,74,.06);
  }

  .hero-card h3{
    font-size:17px;
    margin-bottom:6px;
  }

  .hero-card h4{
    font-size:13px;
  }

  .hero-card p{
    font-size:12px;
    line-height:1.8;
    margin-top:10px;
  }

  .hero-ring{
    min-height:0;
    width:min(100%, 540px);
  }

  .hero-ring-text{
    left:18%;
    right:18%;
    top:50%;
    transform:translateY(-50%);
    font-size:13px;
    line-height:1.55;
  }

  .section-title{
    font-size:24px;
    line-height:1.35;
    letter-spacing:.04em;
  }

  .section-subtitle{
    font-size:13px;
    line-height:1.8;
    padding:0 6px;
  }

  .concept,.oem,.contact,.pb,.company{
    padding-top:72px;
    padding-bottom:72px;
  }

  .concept-card,
  .oem-card,
  .product-card,
  .album-browser,
  .company-table,
  .qr-box{
    border-radius:22px;
  }

  .concept-card{
    min-height:unset;
    padding:24px 20px 20px;
  }

  .concept-card h4{
    font-size:22px;
    margin:10px 0 14px;
  }

  .oem-grid,
  .product-grid,
  .album-grid,
  .album-grid-products{
    grid-template-columns:1fr !important;
  }

  .oem-card{
    min-height:unset;
    padding:24px 18px 18px;
  }

  .product-card h3{
    margin:16px 0 18px;
    font-size:21px;
    letter-spacing:.16em;
  }

  .contact .wrap::before{
    top:96px;
    bottom:88px;
    height:auto;
    width:min(100%, calc(100% - 12px));
    border-radius:28px;
  }

  .qr-grid{
    margin-top:34px;
    gap:20px;
  }

  .qr-box{
    width:min(100%, 236px);
    padding:14px 14px 16px;
  }

  .company-table .th,
  .company-table .td{
    padding:16px 16px;
    line-height:1.75;
  }

  .company-table .th{
    font-size:15px;
  }

  .company-table .td{
    font-size:13px;
  }

  .album-browser{
    padding:22px 14px;
    margin-top:20px;
  }

  .album-browser-head{
    gap:12px;
    margin-bottom:16px;
  }

  .album-title{
    font-size:20px;
  }

  .album-card-body{
    padding:14px 14px 16px;
  }

  .album-photo{
    padding:12px;
  }

  #albumBrowser{
    width:100%;
  }

  .site-footer{
    font-size:12px;
    padding:18px 12px;
    line-height:1.7;
  }
}

@media (max-width: 420px){
  .brand img{
    width:132px;
  }

  .main-nav a{
    font-size:12px;
    padding:9px 4px;
  }

  .hero-ring-text{
    left:16%;
    right:16%;
    font-size:12px;
  }

  .section-title{
    font-size:22px;
  }
}

/* ===== 2026-04-02 mobile hotfix: logo + QR alignment ===== */
@media (max-width: 760px){
  .site-header .wrap.header-inner{
    width:min(100%, calc(100% - 16px));
    grid-template-columns:max-content 1fr max-content;
    grid-template-areas:
      "brand . lang"
      "nav nav nav";
    gap:10px 8px;
    padding:0 0 12px;
  }

  .brand{
    margin:0;
    padding:0;
    justify-self:start;
    align-self:start;
  }

  .brand img{
    width:132px;
    max-width:none;
  }

  .lang-switch{
    justify-self:end;
    align-self:start;
    padding-top:4px;
    margin:0;
  }

  .main-nav{
    margin-top:2px;
  }

  .contact .wrap::before{
    top:106px;
    bottom:88px;
    width:min(100%, calc(100% - 8px));
    border-radius:26px;
  }

  .qr-grid{
    display:grid !important;
    grid-template-columns:repeat(2, minmax(0, 1fr));
    align-items:start;
    justify-content:stretch;
    gap:14px;
    margin-top:28px;
  }

  .qr-box{
    width:100%;
    min-width:0;
    padding:12px 12px 14px;
  }

  .qr-frame{
    padding:10px;
    border-radius:18px;
  }

  .qr-label{
    margin-top:10px;
    font-size:14px;
  }

  .qr-note{
    margin-top:18px;
    font-size:12.5px;
    text-align:center;
  }
}

/* ===== responsive optimization patch 2026-04-03 ===== */
html, body{
  max-width:100%;
}

.hero-ref,
.album-browser,
.album-grid,
.album-grid-products,
.company-table,
.qr-grid,
.product-grid,
.concept-grid,
.oem-grid{
  min-width:0;
}

.hero-card,
.concept-card,
.oem-card,
.product-card,
.album-card,
.album-photo,
.qr-box,
.company-table,
.album-browser{
  word-break:break-word;
}

@media (max-width: 1024px){
  :root{
    --wrap:min(100%, calc(100% - 32px));
  }

  .site-header{
    padding-top:10px;
  }

  .header-inner{
    grid-template-columns:1fr;
    justify-items:center;
    gap:12px;
    min-height:auto;
    padding-bottom:12px;
  }

  .brand img{
    width:176px;
  }

  .main-nav{
    flex-wrap:wrap;
    gap:18px 26px;
  }

  .main-nav a{
    font-size:15px;
    padding:6px 2px;
  }

  .lang-switch{
    justify-content:center;
  }

  .hero{
    padding:32px 0 22px;
  }

  .hero-ref{
    width:var(--wrap);
    grid-template-columns:1fr;
    grid-template-areas:
      "top"
      "ring"
      "left"
      "right"
      "bottom";
    gap:20px;
  }

  .hero-top,
  .hero-left,
  .hero-right,
  .hero-bottom{
    max-width:100%;
    justify-self:stretch;
  }

  .hero-card{
    padding:22px 22px;
    background:linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.68));
    border:1px solid rgba(255,255,255,.8);
    box-shadow:var(--shadow-sm);
    border-radius:22px;
    backdrop-filter:blur(12px);
  }

  .hero-card h3{
    font-size:22px;
    margin-bottom:8px;
  }

  .hero-card h4{
    font-size:15px;
    margin-top:2px;
  }

  .hero-card p{
    font-size:13px;
    line-height:1.85;
    margin-top:10px;
  }

  .hero-ring{
    width:min(100%, 720px);
    min-height:auto;
  }

  .hero-ring-text{
    left:16%;
    right:16%;
    top:50%;
    transform:translateY(-50%);
    font-size:16px;
    line-height:1.5;
  }

  .section-title{
    font-size:30px;
  }

  .section-subtitle{
    font-size:14px;
    line-height:1.8;
  }

  .concept,
  .oem,
  .contact,
  .pb,
  .company{
    padding-top:72px;
  }

  .concept-grid{
    grid-template-columns:1fr;
    gap:18px;
  }

  .concept-card{
    min-height:auto;
    padding:24px 22px;
  }

  .concept-card h4{
    font-size:24px;
    line-height:1.35;
  }

  .oem-grid{
    grid-template-columns:repeat(2, minmax(0,1fr));
    gap:16px;
  }

  .oem-card{
    min-height:auto;
  }

  .product-grid{
    grid-template-columns:repeat(2, minmax(0,1fr));
    gap:16px;
  }

  .product-card h3{
    margin:18px 0 20px;
    font-size:22px;
    letter-spacing:.16em;
  }

  .contact .wrap{
    padding-top:0;
  }

  .contact .wrap::before{
    top:112px;
    width:min(100%, calc(100% - 12px));
    height:auto;
    bottom:82px;
  }

  .qr-grid{
    gap:26px;
    margin-top:36px;
    flex-wrap:wrap;
  }

  .qr-box{
    width:min(250px, 100%);
    padding:16px;
  }

  .company-table .row{
    grid-template-columns:180px 1fr;
  }

  .company-table .th,
  .company-table .td{
    padding:18px 18px;
  }

  .album-browser{
    width:100%;
    padding:22px 18px;
    border-radius:24px;
  }

  .album-grid{
    grid-template-columns:repeat(2, minmax(0,1fr));
    gap:16px;
  }

  .album-grid-products,
  #albumGrid.album-grid-products{
    grid-template-columns:repeat(2, minmax(0,1fr)) !important;
    gap:16px !important;
  }
}

@media (max-width: 767px){
  :root{
    --wrap:min(100%, calc(100% - 20px));
  }

  section[id]{
    scroll-margin-top:136px;
  }

  .site-header{
    padding-top:8px;
  }

  .site-header::before{
    background:linear-gradient(180deg, rgba(247,250,255,.96), rgba(247,250,255,.86));
  }

  .header-inner{
    gap:10px;
    padding-bottom:10px;
  }

  .brand img{
    width:150px;
  }

  .main-nav{
    width:100%;
    gap:10px 18px;
  }

  .main-nav a{
    font-size:14px;
    line-height:1.2;
  }

  .lang-switch{
    font-size:12px;
  }

  .hero{
    padding:24px 0 14px;
  }

  .hero-grid-lines,
  .hero-deco-left,
  .hero-deco-right,
  .hero-ring::before,
  .hero-ring::after{
    display:none;
  }

  .hero-ref{
    gap:16px;
  }

  .hero-card{
    padding:18px 16px;
    border-radius:18px;
  }

  .hero-card h3{
    font-size:19px;
  }

  .hero-card h4{
    font-size:14px;
  }

  .hero-card p{
    font-size:12px;
    line-height:1.75;
  }

  .hero-ring{
    width:100%;
  }

  .hero-ring-image{
    width:100%;
  }

  .hero-ring-text{
    left:17%;
    right:17%;
    font-size:13px;
    line-height:1.45;
  }

  .section-title{
    font-size:24px;
    line-height:1.3;
  }

  .section-title::after{
    width:72px;
    margin-top:14px;
  }

  .section-subtitle{
    font-size:13px;
    margin-top:10px;
  }

  .concept,
  .oem,
  .contact,
  .pb,
  .company{
    padding-top:60px;
  }

  .concept-card,
  .oem-card,
  .product-card,
  .qr-box{
    border-radius:20px;
  }

  .concept-card{
    padding:20px 18px;
  }

  .concept-card h3{
    font-size:13px;
    letter-spacing:.18em;
  }

  .concept-card h4{
    margin:10px 0 12px;
    font-size:20px;
  }

  .concept-card p{
    font-size:13px;
    line-height:1.8;
  }

  .oem-grid{
    grid-template-columns:1fr !important;
  }

  .oem-card{
    padding:18px 16px;
    grid-template-columns:54px minmax(0,1fr);
    column-gap:12px;
    row-gap:4px;
  }

  .oem-icon{
    width:54px;
    height:54px;
    border-radius:16px;
  }

  .oem-icon img{
    width:28px;
    height:28px;
  }

  .oem-card h3{
    font-size:18px;
  }

  .oem-card p{
    font-size:12px;
    line-height:1.7;
  }

  .product-card h3{
    font-size:20px;
    margin:16px 0 18px;
    letter-spacing:.12em;
  }

  .contact .section-title{
    font-size:22px;
    margin-bottom:10px;
  }

  .contact .section-subtitle{
    font-size:13px;
    margin-bottom:14px;
  }

  .contact .wrap::before{
    top:96px;
    bottom:84px;
    border-radius:28px;
    width:100%;
  }

  .qr-grid{
    flex-direction:column;
    align-items:center;
    gap:18px;
    margin-top:26px;
  }

  .qr-box{
    width:min(220px, 100%);
    padding:12px 12px 14px;
  }

  .qr-frame{
    padding:10px;
    border-radius:18px;
  }

  .qr-label{
    margin-top:10px;
    font-size:14px;
  }

  .qr-note{
    margin-top:16px;
    font-size:13px;
    line-height:1.65;
  }

  .company{
    padding-bottom:42px;
  }

  .company-table{
    margin-top:28px;
    border-radius:20px;
  }

  .company-table .row{
    grid-template-columns:1fr;
  }

  .company-table .th{
    font-size:15px;
    padding:14px 14px 12px;
  }

  .company-table .td{
    font-size:13px;
    line-height:1.8;
    padding:12px 14px 14px;
  }

  .album-browser{
    margin-top:20px;
    padding:18px 14px;
    border-radius:20px;
  }

  .album-browser-head{
    flex-direction:column;
    align-items:flex-start;
    gap:12px;
    margin-bottom:16px;
  }

  .album-title{
    font-size:22px;
  }

  .album-back{
    padding:10px 14px;
    font-size:13px;
  }

  .album-card,
  .album-photo{
    border-radius:18px;
  }

  .album-card-body{
    padding:14px;
  }

  .album-photo{
    padding:12px;
  }

  .site-footer{
    font-size:12px;
    line-height:1.6;
    padding:18px 12px;
  }
}

@media (max-width: 420px){
  .main-nav{
    justify-content:center;
    gap:8px 14px;
  }

  .main-nav a{
    font-size:13px;
  }

  .hero-card{
    padding:16px 14px;
  }

  .hero-card h3{
    font-size:18px;
  }

  .hero-ring-text{
    left:18%;
    right:18%;
    font-size:12px;
  }

  .section-title{
    font-size:22px;
  }

  .contact .wrap::before{
    top:92px;
    bottom:80px;
  }
}



/* ===== 2026-04-03 mobile 2-column product cards patch ===== */
@media (max-width: 767px){
  .product-grid,
  .album-entry-grid{
    display:grid !important;
    grid-template-columns:repeat(2, minmax(0, 1fr)) !important;
    gap:14px !important;
    align-items:stretch;
  }

  .product-card,
  .album-entry{
    width:100%;
    min-width:0;
  }

  .product-card img,
  .album-entry img{
    width:100%;
    aspect-ratio: 1 / 1;
    object-fit:cover;
    border-radius:18px 18px 0 0;
  }

  .product-card h3,
  .album-entry h3{
    font-size:18px;
    letter-spacing:.08em;
    margin:12px 0 14px;
  }
}

@media (max-width: 420px){
  .product-grid,
  .album-entry-grid{
    gap:12px !important;
  }

  .product-card h3,
  .album-entry h3{
    font-size:16px;
    margin:10px 0 12px;
  }
}



/* ===== 2026-04-03 company table yellow cells slimmer ===== */
.company-table .row{
  grid-template-columns: 200px 1fr;
}

.company-table .th{
  padding: 14px 22px;
  font-size: 16px;
  line-height: 1.35;
}

.company-table .td{
  padding: 14px 22px;
}

@media (max-width: 1024px){
  .company-table .row{
    grid-template-columns: 168px 1fr;
  }

  .company-table .th{
    padding: 12px 18px;
    font-size: 15px;
  }

  .company-table .td{
    padding: 12px 18px;
  }
}

@media (max-width: 767px){
  .company-table .th{
    padding: 10px 14px 9px;
    font-size: 14px;
    line-height: 1.25;
  }

  .company-table .td{
    padding: 10px 14px 12px;
  }
}



/* ===== 2026-04-03 mobile company table compact title cells ===== */
@media (max-width: 767px){
  .company-table{
    margin-top:24px;
  }

  .company-table .row{
    grid-template-columns: 112px 1fr !important;
  }

  .company-table .th{
    padding: 8px 12px !important;
    font-size: 13px !important;
    line-height: 1.2 !important;
  }

  .company-table .td{
    padding: 10px 12px 11px !important;
    font-size: 12.5px;
    line-height: 1.9;
  }
}

@media (max-width: 420px){
  .company-table .row{
    grid-template-columns: 102px 1fr !important;
  }

  .company-table .th{
    padding: 7px 10px !important;
    font-size: 12.5px !important;
  }

  .company-table .td{
    padding: 9px 10px 10px !important;
    font-size: 12px;
    line-height: 1.85;
  }
}



/* ===== 2026-04-03 mobile company table: label top, content bottom ===== */
@media (max-width: 767px){
  .company-table{
    overflow:hidden;
    border-radius:20px;
  }

  .company-table .row{
    display:grid !important;
    grid-template-columns:1fr !important;
  }

  .company-table .th{
    display:block;
    width:100%;
    padding:10px 14px !important;
    font-size:13px !important;
    line-height:1.25 !important;
    border-right:none !important;
    border-bottom:1px solid rgba(255,255,255,.18);
  }

  .company-table .td{
    display:block;
    width:100%;
    padding:12px 14px 14px !important;
    font-size:12.5px;
    line-height:1.9;
  }
}

@media (max-width: 420px){
  .company-table .th{
    padding:9px 12px !important;
    font-size:12.5px !important;
  }

  .company-table .td{
    padding:11px 12px 13px !important;
    font-size:12px;
    line-height:1.85;
  }
}



/* ===== 2026-04-03 mobile album/category/product 2-column patch ===== */
@media (max-width: 767px){
  .album-grid,
  #albumGrid.album-grid,
  .album-grid-products,
  #albumGrid.album-grid-products{
    display:grid !important;
    grid-template-columns:repeat(2, minmax(0, 1fr)) !important;
    gap:14px !important;
    align-items:start;
  }

  .album-card,
  .album-photo{
    width:100%;
    min-width:0;
    height:100%;
    border-radius:18px;
  }

  .album-card img,
  .album-photo img{
    width:100%;
    aspect-ratio:1 / 1;
    object-fit:cover;
  }

  .album-card-body{
    padding:12px 12px 14px;
  }

  .album-card-body h4{
    font-size:16px;
    line-height:1.45;
    margin:0 0 6px;
  }

  .album-card-body p{
    font-size:12px;
    line-height:1.6;
  }

  .album-photo{
    padding:10px;
  }

  .album-photo span,
  .album-photo .album-photo-title{
    font-size:14px;
    line-height:1.45;
  }
}

@media (max-width: 420px){
  .album-grid,
  #albumGrid.album-grid,
  .album-grid-products,
  #albumGrid.album-grid-products{
    gap:12px !important;
  }

  .album-card-body{
    padding:10px 10px 12px;
  }

  .album-card-body h4{
    font-size:15px;
  }

  .album-card-body p{
    font-size:11.5px;
  }

  .album-photo{
    padding:8px;
  }

  .album-photo span,
  .album-photo .album-photo-title{
    font-size:13px;
  }
}


body.modal-open{
  overflow:hidden;
}

.mobile-fab{
  position:fixed;
  right:16px;
  bottom:calc(18px + env(safe-area-inset-bottom, 0px));
  z-index:1200;
  display:none;
  flex-direction:column;
  gap:12px;
}

.mobile-fab-btn{
  min-width:120px;
  height:52px;
  padding:0 16px;
  border:none;
  border-radius:999px;
  box-shadow:0 12px 30px rgba(22, 34, 56, 0.16);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  text-decoration:none;
  font-weight:800;
  font-size:14px;
  letter-spacing:.02em;
  cursor:pointer;
}

.mobile-fab-tel{
  background:#1f5fae;
  color:#fff;
}

.mobile-fab-wechat{
  background:#1fb56a;
  color:#fff;
}

.mobile-fab-icon{
  width:24px;
  height:24px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  line-height:1;
  flex:0 0 24px;
}

.mobile-fab-icon img{
  width:100%;
  height:100%;
  object-fit:contain;
  display:block;
}

.wechat-modal{
  position:fixed;
  inset:0;
  z-index:1300;
}

.wechat-modal-backdrop{
  position:absolute;
  inset:0;
  background:rgba(15, 23, 42, .48);
  backdrop-filter:blur(2px);
}

.wechat-modal-panel{
  position:relative;
  width:min(92vw, 380px);
  margin:12vh auto 0;
  background:#fff;
  border-radius:28px;
  padding:22px 20px 24px;
  box-shadow:0 24px 60px rgba(17, 24, 39, .22);
  text-align:center;
}

.wechat-modal-close{
  position:absolute;
  top:12px;
  right:12px;
  width:36px;
  height:36px;
  border:none;
  border-radius:50%;
  background:#f3f6fb;
  color:#1f2f46;
  font-size:24px;
  line-height:1;
  cursor:pointer;
}

.wechat-modal-eyebrow{
  margin:0 0 8px;
  font-size:12px;
  font-weight:800;
  letter-spacing:.16em;
  color:#7a8ca8;
}

.wechat-modal-panel h3{
  margin:0 0 14px;
  font-size:22px;
  color:#1b2b43;
}

.wechat-modal-frame{
  width:min(100%, 260px);
  margin:0 auto 14px;
  padding:12px;
  border-radius:24px;
  background:#f8fafc;
  box-shadow:inset 0 0 0 1px rgba(31, 95, 174, .08);
}

.wechat-modal-frame img{
  width:100%;
  display:block;
  border-radius:16px;
}

.wechat-modal-note{
  margin:0;
  font-size:14px;
  line-height:1.7;
  color:#5d6d83;
}

@media (max-width: 768px){
  .mobile-fab{
    display:flex;
  }
}

@media (min-width: 769px){
  .wechat-modal-panel{
    margin-top:14vh;
  }
}

@media (max-width: 480px){
  .mobile-fab{
    right:12px;
    bottom:calc(12px + env(safe-area-inset-bottom, 0px));
    gap:10px;
  }

  .mobile-fab-btn{
    min-width:112px;
    height:48px;
    padding:0 14px;
    font-size:13px;
  }

  .wechat-modal-panel{
    width:min(94vw, 360px);
    margin-top:10vh;
    padding:20px 16px 22px;
    border-radius:24px;
  }

  .wechat-modal-panel h3{
    font-size:20px;
  }

  .wechat-modal-note{
    font-size:13px;
  }
}


/* Desktop homepage replacement: full-screen hero image, mobile unchanged */
@media (min-width: 761px){
  .hero.hero-premium{
    padding:0;
    min-height:calc(100vh - 96px);
    background-image:url("assets/homepage-desktop.png");
    background-repeat:no-repeat;
    background-size:cover;
    background-position:center center;
    display:block;
    position:relative;
    overflow:hidden;
  }
  .hero.hero-premium::before{
    content:none;
  }
  .hero.hero-premium .hero-deco,
  .hero.hero-premium .hero-grid-lines,
  .hero.hero-premium .hero-ref{
    display:none !important;
  }
}


/* Layout fixes for concept and OEM sections */
.concept-grid-two{
  display:grid !important;
  grid-template-columns:repeat(2, minmax(0, 1fr)) !important;
  gap:24px !important;
  align-items:stretch;
}

.concept-grid-two .concept-card{
  min-height:235px !important;
  padding:26px 28px 24px !important;
  border-radius:14px !important;
  border:1px solid rgba(181, 133, 120, 0.45) !important;
  box-shadow:none !important;
  backdrop-filter:none !important;
  background:rgba(255,255,255,0.6) !important;
}

.concept-grid-two .concept-card h4{
  margin:0 0 24px !important;
  font-size:22px !important;
  line-height:1.45 !important;
}

.concept-grid-two .concept-card p{
  font-size:15px !important;
  line-height:1.9 !important;
  color:#6e7077 !important;
}

.oem-grid-four{
  display:grid !important;
  grid-template-columns:repeat(4, minmax(0, 1fr)) !important;
  gap:14px !important;
  align-items:stretch;
}

.oem-grid-four .oem-card{
  min-height:185px !important;
  padding:18px 14px 20px !important;
  border-radius:14px !important;
  border:1px solid rgba(181, 133, 120, 0.45) !important;
  box-shadow:none !important;
  backdrop-filter:none !important;
  background:rgba(255,255,255,0.72) !important;
}

.oem-grid-four .oem-card::after{
  display:none !important;
}

.oem-grid-four .oem-icon{
  width:60px !important;
  height:60px !important;
  margin:0 auto 14px !important;
  border-radius:16px !important;
  background:rgba(255, 244, 238, 0.95) !important;
  box-shadow:none !important;
}

.oem-grid-four .oem-icon img{
  width:32px !important;
  height:32px !important;
}

.oem-grid-four .oem-card h3{
  margin:0 0 16px !important;
  font-size:18px !important;
  font-weight:800 !important;
}

.oem-grid-four .oem-card p{
  font-size:14px !important;
  line-height:1.7 !important;
  text-align:left !important;
}

@media (max-width: 900px){
  .concept-grid-two{
    grid-template-columns:1fr !important;
  }
  .oem-grid-four{
    grid-template-columns:repeat(2, minmax(0, 1fr)) !important;
  }
}

@media (max-width: 560px){
  .oem-grid-four{
    grid-template-columns:repeat(2, minmax(0, 1fr)) !important;
    gap:12px !important;
  }

  .oem-grid-four .oem-card{
    min-height:auto !important;
    aspect-ratio:1 / 1 !important;
    padding:16px 12px 14px !important;
    border-radius:16px !important;
    display:flex !important;
    flex-direction:column !important;
    align-items:center !important;
    justify-content:center !important;
    text-align:center !important;
    background:rgba(255,255,255,0.82) !important;
    box-shadow:0 8px 20px rgba(130, 106, 97, 0.08) !important;
  }

  .oem-grid-four .oem-icon{
    width:62px !important;
    height:62px !important;
    margin:0 auto 12px !important;
    border-radius:16px !important;
    background:rgba(255, 244, 238, 0.98) !important;
  }

  .oem-grid-four .oem-icon img{
    width:30px !important;
    height:30px !important;
  }

  .oem-grid-four .oem-card h3{
    width:100% !important;
    margin:0 0 8px !important;
    font-size:18px !important;
    line-height:1.35 !important;
    text-align:center !important;
  }

  .oem-grid-four .oem-card p{
    width:100% !important;
    margin:0 !important;
    font-size:12px !important;
    line-height:1.55 !important;
    color:#747474 !important;
    text-align:center !important;
    display:-webkit-box !important;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden !important;
  }
}

@media (max-width: 420px){
  .oem-grid-four{
    gap:10px !important;
  }

  .oem-grid-four .oem-card{
    padding:14px 10px 12px !important;
    border-radius:14px !important;
  }

  .oem-grid-four .oem-icon{
    width:56px !important;
    height:56px !important;
    margin:0 auto 10px !important;
  }

  .oem-grid-four .oem-icon img{
    width:28px !important;
    height:28px !important;
  }

  .oem-grid-four .oem-card h3{
    font-size:16px !important;
    margin-bottom:6px !important;
  }

  .oem-grid-four .oem-card p{
    font-size:11px !important;
    line-height:1.5 !important;
  }
}

/* ===== 2026-04-14 section background + company color update ===== */
/* 2026-04-16: non-home sections tuned for stronger background color presence */
.oem{
  background-color:#e5edf6 !important;
  background-image:linear-gradient(rgba(248,251,255,.38), rgba(248,251,255,.38)), url("assets/oem-bg.jpg") !important;
  background-repeat:no-repeat !important;
  background-size:cover !important;
  background-position:center center !important;
}

.contact{
  background-color:#dde8f3 !important;
  background-image:linear-gradient(rgba(246,250,255,.34), rgba(246,250,255,.34)), url("assets/contact-bg.jpg") !important;
  background-repeat:no-repeat !important;
  background-size:cover !important;
  background-position:center center !important;
}

.company{
  background-color:#e3e8ef !important;
  background-image:linear-gradient(rgba(248,250,253,.32), rgba(248,250,253,.32)), url("assets/company-bg.jpg") !important;
  background-repeat:no-repeat !important;
  background-size:cover !important;
  background-position:center center !important;
}

.company-table{
  border:1px solid rgba(160,171,186,.46) !important;
  box-shadow:none !important;
  background:rgba(255,255,255,.84) !important;
  backdrop-filter:blur(3px);
}

.company-table .row{
  grid-template-columns: 220px 1fr !important;
}

.company-table .th{
  background:rgba(229,233,239,.96) !important;
  color:#223246 !important;
  border-bottom:1px solid rgba(167,177,191,.44) !important;
  font-size:18px !important;
  font-weight:700 !important;
}

.company-table .td{
  background:rgba(255,255,255,.80) !important;
  color:#4d5d72 !important;
  border-bottom:1px solid rgba(167,177,191,.28) !important;
}

.company-table .row:last-child .th{
  background:rgba(229,233,239,.88) !important;
}

.site-footer{
  background:linear-gradient(90deg, #223247, #32465f 58%, #24364d) !important;
}

@media (max-width: 900px){
  .company-table .row{
    grid-template-columns:1fr !important;
  }
}




.oem-card{
  text-align: center;
}

.oem-card p{
  margin: 0;
  text-align: center;
}
/* ===== 2026-04-16 OEM card description centering fix ===== */
.oem-grid-four .oem-card{
  display:flex !important;
  flex-direction:column !important;
  align-items:center !important;
  justify-content:flex-start !important;
  text-align:center !important;
}

.oem-grid-four .oem-card p{
  width:100% !important;
  margin:0 auto !important;
  text-align:center !important;
}


body{
  font-family:"Noto Sans JP","Noto Sans SC",sans-serif;
}

.lang-switch .lang-btn{
  appearance:none;
  border:none;
  background:transparent;
  padding:0;
  margin:0;
  color:inherit;
  font:inherit;
  letter-spacing:inherit;
  cursor:pointer;
  transition:color .25s ease, opacity .25s ease;
}

.lang-switch .lang-btn:hover{
  color:var(--title);
}

.lang-switch .lang-btn.active{
  color:var(--title);
}

.lang-switch .lang-btn:focus-visible{
  outline:2px solid rgba(255,116,41,.45);
  outline-offset:4px;
  border-radius:999px;
}


/* ===== 2026-04-21 Chinese homepage hero + Chinese font stack ===== */
@media (min-width: 761px){
  html[lang="zh-CN"] .hero.hero-premium{
    background-image:url("assets/homepage-desktop-zh.png") !important;
    background-position:center center !important;
    background-size:cover !important;
  }
}

html[lang="zh-CN"] body,
html[lang="zh-CN"] button,
html[lang="zh-CN"] input,
html[lang="zh-CN"] textarea,
html[lang="zh-CN"] select{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
}