:root{--bg:#f5f4f1;--ink:#0b0b0b;--muted:#8a8a8a;--line:#d8d8d5}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,'Noto Sans JP',sans-serif}.container{width:min(1180px,calc(100% - 48px));margin:auto}.site-header{height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:fixed;z-index:50;top:0;left:0;right:0;background:rgba(247,246,243,.84);backdrop-filter:blur(14px);border-bottom:1px solid rgba(0,0,0,.06)}.logo{font-size:28px;letter-spacing:.18em;text-decoration:none;color:#000;font-weight:500}.desktop-nav{display:flex;gap:28px}.desktop-nav a,.lang-toggle{font-size:12px;font-weight:700;text-decoration:none;color:#111;background:none;border:0;cursor:pointer}.header-actions{display:flex;align-items:center;gap:16px}.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border:0;padding:15px 22px;font-weight:700;font-size:12px;letter-spacing:.02em;cursor:pointer}.btn-dark{background:#0b0b0b;color:#fff}.btn-light{background:#fff;color:#111}.menu-btn{display:none;background:none;border:0;font-size:25px}.mobile-menu{position:fixed;z-index:45;top:78px;left:0;right:0;background:#fff;padding:24px}.mobile-menu a{display:block;padding:14px 0;color:#111;text-decoration:none;border-bottom:1px solid #eee}.hero{min-height:760px;display:flex;align-items:center;position:relative;background:url('hero.png') center/cover no-repeat;margin-top:0}.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(247,246,243,.97) 0%,rgba(247,246,243,.82) 36%,rgba(247,246,243,.1) 64%,rgba(247,246,243,0) 100%)}.hero-content{position:relative;padding-top:110px}.eyebrow,.section-label{font-size:11px;font-weight:700;letter-spacing:.08em;margin:0 0 14px}.hero h1,.section h2,.feature-copy h2{font-size:clamp(50px,7vw,92px);line-height:.92;letter-spacing:-.05em;margin:0 0 28px;max-width:760px}.hero-kicker{font-weight:700;font-size:18px}.hero-copy{max-width:480px;line-height:1.7}.hero-actions{display:flex;gap:28px;align-items:center;margin-top:32px}.text-link{color:#111;text-decoration:none;font-weight:700;font-size:12px}.section{padding:96px 0}.light-section{background:#f5f4f1}.dark-section{background:#0b0b0b;color:#fff}.two-col{display:grid;grid-template-columns:1fr 1.1fr;gap:80px}.section h2{font-size:clamp(42px,5vw,72px)}.copy-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;line-height:1.8}.muted{color:#aaa}.invert{color:#fff}.service-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #444;margin-top:44px}.service-grid article{padding:28px;border-right:1px solid #444}.service-grid article:first-child{padding-left:0}.service-grid span{font-size:11px;color:#aaa}.service-grid h3,.criteria-grid h3{font-size:14px;margin:8px 0 14px}.service-grid p,.criteria-grid p{font-size:13px;line-height:1.7;color:#ccc}.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:50px}.steps>div{position:relative;padding-top:56px}.steps>div:not(:last-child):after{content:'→';position:absolute;right:-8px;top:18px}.steps b{display:inline-flex;width:34px;height:34px;border-radius:50%;background:#000;color:#fff;align-items:center;justify-content:center;font-size:11px}.steps h3{font-size:14px;margin-bottom:8px}.steps p{font-size:12px}.split-feature{display:grid;grid-template-columns:1.1fr 1fr;min-height:520px}.feature-photo{background:url('japan-market.png') center/cover no-repeat;position:relative}.feature-photo:before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,0),rgba(0,0,0,.08)),radial-gradient(circle at 70% 30%,rgba(255,255,255,.8),transparent 30%)}.feature-copy{padding:86px;display:flex;flex-direction:column;justify-content:center;background:#efeee9}.feature-copy p:last-child{line-height:1.8;max-width:560px}.brands-section{padding:0}.brands-layout{width:100%;max-width:none;display:grid;grid-template-columns:1.05fr .95fr;padding:0}.brands-copy{padding:90px max(48px,calc((100vw - 1180px)/2));padding-right:56px}.brands-visual{min-height:520px;background:url('brand-partnership.png') center/cover no-repeat}.criteria-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin:44px 0}.criteria-grid>div{padding:12px 28px;border-right:1px solid #444}.criteria-grid>div:first-child{padding-left:0}.company-grid{display:grid;grid-template-columns:.7fr 1.2fr .8fr;gap:54px;align-items:center}.company-list{margin:0}.company-list>div{display:grid;grid-template-columns:160px 1fr;border-bottom:1px solid var(--line);padding:12px 0}.company-list dt{font-size:12px;font-weight:700}.company-list dd{margin:0;font-size:13px}.profile-visual{min-height:230px;background:url('brand-desk.png') center/cover no-repeat;border-radius:2px}.contact-section{background:#0b0b0b;color:#fff}.contact-grid{display:grid;grid-template-columns:.9fr 1.2fr;gap:70px}.contact-form{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.contact-form input,.contact-form textarea{width:100%;padding:14px;background:#111;border:1px solid #444;color:#fff;font:inherit}.contact-form textarea{grid-column:1/-1;min-height:110px}.contact-form button{grid-column:2}.contact-intro{max-width:360px;color:#b5b5b5;line-height:1.8}.hp-field{position:absolute!important;left:-9999px!important;opacity:0!important}.privacy-check{grid-column:1/-1;display:flex;gap:9px;align-items:flex-start;color:#aaa;font-size:11px;line-height:1.5}.privacy-check input{width:auto;margin-top:2px;accent-color:#fff}.contact-form button{justify-self:end;min-width:190px}.footer-links{display:flex;gap:18px;flex-wrap:wrap;justify-content:center}.footer a{color:#aaa;text-decoration:none}.footer a:hover{color:#fff}.footer{background:#070707;color:#fff;padding:28px 0;border-top:1px solid #222}.footer-inner{display:flex;justify-content:space-between;align-items:center;font-size:11px}.footer strong{letter-spacing:.18em;margin-right:20px}.footer small{color:#777}
@media(max-width:900px){.desktop-nav,.header-cta{display:none}.menu-btn{display:block}.site-header{padding:0 18px}.hero{min-height:700px;background-position:62% center}.hero-overlay{background:linear-gradient(180deg,rgba(247,246,243,.96) 0%,rgba(247,246,243,.88) 52%,rgba(247,246,243,.42) 100%)}.hero-content{padding-top:130px;align-self:flex-start}.hero h1{font-size:52px;max-width:520px}.two-col,.copy-grid,.company-grid,.contact-grid,.split-feature,.brands-layout{grid-template-columns:1fr}.brands-copy{padding:72px 24px}.brands-visual{min-height:360px}.profile-visual{min-height:260px}.copy-grid{gap:12px}.service-grid,.criteria-grid{grid-template-columns:1fr 1fr}.service-grid article:nth-child(2),.criteria-grid>div:nth-child(2){border-right:none}.steps{grid-template-columns:1fr}.steps>div{padding:12px 0 12px 50px}.steps>div:not(:last-child):after{content:'↓';left:14px;right:auto;top:48px}.feature-photo{min-height:360px}.feature-copy{padding:64px 24px}.company-list>div{grid-template-columns:110px 1fr}.contact-form{grid-template-columns:1fr}.contact-form button{grid-column:1}.footer-inner{align-items:flex-start;gap:14px;flex-direction:column}}
@media(max-width:560px){.container{width:min(100% - 32px,1180px)}.logo{font-size:22px}.lang-toggle{font-size:11px}.hero{min-height:660px}.hero h1{font-size:44px}.hero-kicker{font-size:15px}.hero-copy{font-size:14px;max-width:330px}.hero-actions{align-items:flex-start;flex-direction:column;gap:16px}.section{padding:72px 0}.section h2,.feature-copy h2{font-size:42px}.service-grid,.criteria-grid{grid-template-columns:1fr}.service-grid article,.criteria-grid>div{border-right:0!important;border-bottom:1px solid #333;padding:24px 0}.split-feature{min-height:auto}.feature-photo{min-height:280px}.company-list>div{grid-template-columns:1fr;gap:6px}.company-list dd{line-height:1.5}.contact-section{padding-bottom:80px}}

@media(max-width:900px){.footer-links{justify-content:flex-start}.contact-form button{justify-self:stretch}}

.profile a{color:inherit;text-decoration:none}.profile a:hover{text-decoration:underline}

/* v3 mobile navigation visibility improvements */
.lang-toggle{
  min-width:112px;min-height:44px;padding:10px 14px!important;
  border:1px solid rgba(0,0,0,.18)!important;border-radius:999px!important;
  background:#fff!important;color:#111!important;font-size:13px!important;font-weight:800!important;
  letter-spacing:.01em;white-space:nowrap;
}
.lang-toggle:hover{background:#111!important;color:#fff!important;border-color:#111!important}
.menu-btn{
  width:52px;height:52px;min-width:52px;display:none;align-items:center;justify-content:center;
  border:1px solid rgba(0,0,0,.18)!important;border-radius:50%;background:#fff!important;color:#111!important;
  font-size:31px!important;line-height:1;padding:0!important;font-weight:500;
}
@media(max-width:860px){
  .menu-btn{display:inline-flex!important}
  .header-actions{gap:10px}
}
@media(max-width:560px){
  .site-header{height:82px;padding:0 18px}
  .logo{font-size:23px}
  .lang-toggle{min-width:108px;min-height:48px;font-size:14px!important;padding:10px 12px!important}
  .menu-btn{width:54px;height:54px;min-width:54px;font-size:33px!important}
  .mobile-menu{top:82px;padding:18px 22px}
  .mobile-menu a{font-size:17px;font-weight:700;padding:17px 0}
}


/* v4 stronger visibility for language toggle and hamburger */
.site-header{min-height:84px}
.header-actions{gap:12px}
.lang-toggle{
  min-width:136px !important;
  height:50px !important;
  padding:0 18px !important;
  border:1.5px solid rgba(0,0,0,.22) !important;
  border-radius:999px !important;
  background:#fff !important;
  color:#111 !important;
  font-size:14px !important;
  font-weight:800 !important;
  line-height:1 !important;
  box-shadow:0 2px 10px rgba(0,0,0,.06);
}
.menu-btn{
  width:60px !important;
  height:60px !important;
  min-width:60px !important;
  border:1.5px solid rgba(0,0,0,.22) !important;
  border-radius:50% !important;
  background:#fff !important;
  color:#111 !important;
  font-size:38px !important;
  line-height:1 !important;
  box-shadow:0 2px 10px rgba(0,0,0,.06);
}
@media(max-width:860px){
  .site-header{min-height:86px;padding:0 18px !important}
  .header-actions{gap:10px}
  .lang-toggle{
    min-width:128px !important;
    height:52px !important;
    font-size:14px !important;
    padding:0 16px !important;
  }
  .menu-btn{
    width:58px !important;
    height:58px !important;
    min-width:58px !important;
    font-size:36px !important;
  }
}
@media(max-width:560px){
  .site-header{min-height:88px !important;padding:0 16px !important}
  .lang-toggle{
    min-width:124px !important;
    height:52px !important;
    font-size:14px !important;
    padding:0 14px !important;
  }
  .menu-btn{
    width:58px !important;
    height:58px !important;
    min-width:58px !important;
    font-size:36px !important;
  }
  .mobile-menu{top:88px !important}
}


/* v5 hero readability improvement */
.hero-overlay{
  background:
    linear-gradient(180deg, rgba(247,246,243,.98) 0%, rgba(247,246,243,.94) 86px, rgba(247,246,243,0) 170px),
    linear-gradient(90deg, rgba(247,246,243,1) 0%, rgba(247,246,243,.995) 42%, rgba(247,246,243,.92) 58%, rgba(247,246,243,.55) 70%, rgba(247,246,243,.12) 80%, rgba(247,246,243,0) 100%) !important;
}
.hero-content{
  max-width: 650px;
}
.hero h1,
.hero-kicker,
.hero-copy,
.hero-actions{
  position: relative;
  z-index: 2;
}
@media(max-width:900px){
  .hero-overlay{
    background:
      linear-gradient(180deg, rgba(247,246,243,.99) 0%, rgba(247,246,243,.96) 50%, rgba(247,246,243,.78) 74%, rgba(247,246,243,.38) 100%) !important;
  }
}