*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:"Noto Sans JP","Hiragino Sans","Yu Gothic",sans-serif;color:#1f2937;line-height:1.75;background:#fff}a{color:inherit;text-decoration:none}.container{width:min(1120px,calc(100% - 40px));margin:0 auto}.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);border-bottom:1px solid #e5e7eb;backdrop-filter:blur(14px)}.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between}.logo{font-size:20px;font-weight:900;color:#0f3d5e;letter-spacing:-.02em}.site-nav{display:flex;align-items:center;gap:24px;font-size:14px;font-weight:700}.site-nav a:hover{color:#0d8abc}.nav-cta{padding:10px 18px;border-radius:999px;background:linear-gradient(135deg,#0f3d5e,#0d8abc);color:#fff!important;box-shadow:0 10px 24px rgba(15,61,94,.22)}.nav-toggle{display:none;border:none;background:none;font-size:28px;cursor:pointer;color:#0f3d5e}.hero{padding:96px 0 112px;background:radial-gradient(circle at 78% 16%,rgba(13,138,188,.18) 0,transparent 30%),linear-gradient(135deg,#eef8fb 0%,#fff 48%,#f4f7fb 100%);overflow:hidden}.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center}.eyebrow,.section-label{color:#0d8abc;font-weight:900;letter-spacing:.09em;text-transform:uppercase;margin-bottom:12px}h1{font-size:clamp(36px,6vw,62px);line-height:1.15;margin-bottom:24px;color:#0b1f33;letter-spacing:-.04em}h2{font-size:clamp(28px,4vw,42px);line-height:1.3;margin-bottom:24px;color:#0b1f33;letter-spacing:-.03em}h3{color:#0b1f33;margin-bottom:10px}.lead{font-size:18px;color:#4b5563;margin-bottom:32px}.hero-actions{display:flex;flex-wrap:wrap;gap:16px}.btn{display:inline-flex;align-items:center;justify-content:center;border:none;border-radius:999px;padding:13px 26px;font-weight:900;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(15,61,94,.22)}.primary{background:linear-gradient(135deg,#0f3d5e,#0d8abc);color:#fff}.secondary{background:#fff;color:#0f3d5e;border:1px solid #b9dce8}.hero-visual{position:relative}.hero-visual img{width:100%;display:block;border-radius:32px;box-shadow:0 28px 70px rgba(15,61,94,.18);border:1px solid rgba(15,61,94,.12)}.hero-card{position:absolute;left:28px;right:28px;bottom:-38px;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);padding:28px;border-radius:24px;box-shadow:0 18px 45px rgba(15,61,94,.18);border:1px solid #d9e8ef}.hero-card h2{font-size:22px;margin-bottom:10px}.hero-card ul{list-style:none}.hero-card li{padding:10px 0 10px 30px;border-bottom:1px solid #e2edf2;position:relative}.hero-card li::before{content:"✓";position:absolute;left:0;color:#0d9488;font-weight:900}.section{padding:88px 0}.light{background:linear-gradient(180deg,#f8fafc,#eef6f9)}.grid-2{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}.section-image{width:100%;margin-top:28px;border-radius:26px;box-shadow:0 18px 45px rgba(15,61,94,.12);background:#fff}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:32px}.card{background:#fff;border:1px solid #d9e8ef;border-radius:24px;padding:28px;min-height:260px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}.card:hover{transform:translateY(-7px);border-color:#0d8abc;box-shadow:0 18px 40px rgba(15,61,94,.15)}.card-icon,.strength-icon{width:58px;height:58px;display:block;margin-bottom:18px}.strength-list{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:32px}.strength-list div{padding:28px;border-radius:26px;background:#fff;box-shadow:0 16px 36px rgba(15,61,94,.10);border:1px solid #d9e8ef}.strength-list span{display:block;color:#0d8abc;font-weight:900;font-size:24px;margin-bottom:8px}.flow-cards{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:32px}.flow-card{position:relative;background:#fff;border:1px solid #d9e8ef;border-radius:24px;padding:24px;box-shadow:0 14px 32px rgba(15,61,94,.08)}.flow-card:not(:last-child)::after{content:"";position:absolute;right:-16px;top:54px;width:30px;height:12px;background:url('assets/icon-arrow.svg') center/contain no-repeat;z-index:2}.flow-card img{width:56px;height:56px;margin-bottom:16px}.flow-card span{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:14px;background:#e6f3f7;color:#0f3d5e;font-weight:900;margin-bottom:14px}.flow-card p{font-size:14px}.message-box{padding:44px;border-radius:30px;background:linear-gradient(135deg,#f8fafc,#eef6f9);border:1px solid #d9e8ef;box-shadow:0 18px 45px rgba(15,61,94,.08)}.company-section{background:#fff}.company-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}.company-list{background:#fff;border:1px solid #d9e8ef;border-radius:26px;overflow:hidden;box-shadow:0 18px 45px rgba(15,61,94,.10)}.company-list div{display:grid;grid-template-columns:180px 1fr;border-bottom:1px solid #e2edf2}.company-list div:last-child{border-bottom:none}.company-list dt{padding:18px 22px;background:#eef6f9;color:#0f3d5e;font-weight:900}.company-list dd{padding:18px 22px}.contact-section{background:linear-gradient(135deg,#0b1f33,#0f3d5e);color:#fff}.contact-section h2,.contact-section .section-label{color:#fff}.contact-box{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start}.contact-form{display:grid;gap:16px;background:#fff;padding:32px;border-radius:26px;box-shadow:0 18px 45px rgba(15,23,42,.18)}.contact-form input,.contact-form select,.contact-form textarea{width:100%;padding:14px 16px;border:1px solid #c9dce5;border-radius:14px;font:inherit;background:#f8fafc}.form-message{color:#0f3d5e;font-weight:800}.site-footer{background:#0b1f33;color:#dbeafe;padding:24px 0;font-size:14px}.footer-inner{display:flex;justify-content:space-between;gap:16px}.reveal,.reveal-item{opacity:0;transform:translateY(36px);transition:opacity .75s ease,transform .75s ease}.reveal.is-visible,.reveal-item.is-visible{opacity:1;transform:translateY(0)}.cards .reveal-item:nth-child(2),.strength-list .reveal-item:nth-child(2),.flow-cards .reveal-item:nth-child(2){transition-delay:.10s}.cards .reveal-item:nth-child(3),.strength-list .reveal-item:nth-child(3),.flow-cards .reveal-item:nth-child(3){transition-delay:.20s}.cards .reveal-item:nth-child(4),.strength-list .reveal-item:nth-child(4),.flow-cards .reveal-item:nth-child(4){transition-delay:.30s}.cards .reveal-item:nth-child(5),.flow-cards .reveal-item:nth-child(5){transition-delay:.40s}@media(max-width:1050px){.cards{grid-template-columns:repeat(2,1fr)}.strength-list{grid-template-columns:repeat(2,1fr)}.flow-cards{grid-template-columns:1fr 1fr}.flow-card:not(:last-child)::after{display:none}}@media(max-width:900px){.nav-toggle{display:block}.site-nav{position:absolute;top:72px;left:0;right:0;display:none;flex-direction:column;align-items:flex-start;padding:24px 20px;background:#fff;border-bottom:1px solid #e5e7eb}.site-nav.active{display:flex}.hero-inner,.grid-2,.contact-box,.company-grid{grid-template-columns:1fr}.hero-card{position:static;margin-top:18px}}@media(max-width:600px){.container{width:min(100% - 28px,1120px)}.hero,.section{padding:64px 0}.cards,.strength-list,.flow-cards{grid-template-columns:1fr}.company-list div{grid-template-columns:1fr}.footer-inner{flex-direction:column}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal,.reveal-item{opacity:1;transform:none;transition:none}}
/* requested updates */
.hero-visual{display:flex;align-items:center;justify-content:center}.hero-visual>img{display:none}.hero-card.area-card{position:static;width:100%;max-width:520px;margin:0 0 0 auto;padding:42px;border-radius:34px;background:#fff;box-shadow:0 24px 60px rgba(15,61,94,.12);border:none}.hero-card.area-card h2{font-size:36px;color:#0b1f33;margin-bottom:18px}.hero-card.area-card li{font-size:18px;padding:16px 0 16px 42px;border-bottom:1px solid #dce6ee}.hero-card.area-card li::before{color:#0d8abc;font-size:20px}.strength-list{grid-template-columns:repeat(4,1fr);gap:28px}.strength-list div{border-radius:0;border:none;border-left:5px solid #0d8abc;box-shadow:0 14px 38px rgba(15,61,94,.06);padding:38px 34px;background:#fff}.strength-list span{font-size:32px;color:#0d8abc;margin-bottom:14px}.strength-list h3{font-size:21px}.strength-icon{display:none}.contact-form{grid-template-columns:repeat(2,1fr);gap:18px 24px}.contact-form label{display:grid;gap:8px;color:#0b1f33;font-weight:800}.required{display:inline-block;margin-left:8px;padding:1px 7px;border-radius:4px;background:#ef4444;color:#fff;font-size:12px;line-height:1.5}.form-full,.form-submit,.form-message{grid-column:1/-1}.contact-form .btn{justify-self:center;min-width:220px}@media(max-width:900px){.hero-card.area-card{margin:20px 0 0}.strength-list{grid-template-columns:1fr}.contact-form{grid-template-columns:1fr}}

.hp-field{position:absolute;left:-9999px;opacity:0;height:0;width:0;pointer-events:none;}

/* main visual update */
.hero{
  position:relative;
  min-height:640px;
  padding:112px 0 118px;
  background:
    linear-gradient(90deg, rgba(255,255,255,.95) 0%, rgba(255,255,255,.86) 42%, rgba(255,255,255,.42) 70%, rgba(255,255,255,.12) 100%),
    url('assets/main-visual.jpg') center/cover no-repeat;
}
.hero-inner{position:relative;z-index:1;}
.hero-text{
  max-width:650px;
  padding:18px 0;
}
.hero .eyebrow{
  color:#0d8abc;
  text-shadow:0 1px 0 rgba(255,255,255,.7);
}
.hero h1{
  color:#08243a;
  text-shadow:0 2px 12px rgba(255,255,255,.45);
}
.hero .lead{
  color:#163449;
  font-weight:600;
  text-shadow:0 1px 8px rgba(255,255,255,.55);
}
.hero-card.area-card{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.72);
  box-shadow:0 24px 70px rgba(8,36,58,.18);
}
@media(max-width:900px){
  .hero{
    padding:86px 0 76px;
    background:
      linear-gradient(180deg, rgba(255,255,255,.96) 0%, rgba(255,255,255,.86) 54%, rgba(255,255,255,.50) 100%),
      url('assets/main-visual.jpg') center/cover no-repeat;
  }
  .hero-text{max-width:100%;}
}


/* language selector */
.lang-select{
  display:flex;
  align-items:center;
  margin-left:4px;
  padding-left:14px;
  border-left:1px solid #d9e8ef;
}
.language-select{
  min-width:118px;
  appearance:none;
  -webkit-appearance:none;
  border:1px solid #cfe1ea;
  border-radius:999px;
  padding:8px 34px 8px 14px;
  font-size:13px;
  font-weight:900;
  color:#0f3d5e;
  background:
    linear-gradient(45deg, transparent 50%, #0d8abc 50%) right 15px center/6px 6px no-repeat,
    linear-gradient(135deg, #0d8abc 50%, transparent 50%) right 9px center/6px 6px no-repeat,
    #eef6f9;
  cursor:pointer;
  outline:none;
}
.language-select:hover,
.language-select:focus{
  border-color:#0d8abc;
  box-shadow:0 0 0 3px rgba(13,138,188,.12);
}
.visually-hidden{
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}
@media(max-width:900px){
  .lang-select{border-left:none;padding-left:0;margin-left:0;width:100%}
  .language-select{width:100%;max-width:220px}
}

/* NexusArk logo */
.logo{display:inline-flex;align-items:center;line-height:1;min-width:190px;}
.logo img{display:block;width:clamp(170px,18vw,240px);height:auto;max-height:48px;object-fit:contain;}
.footer-brand{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.footer-brand img{width:170px;height:auto;filter:brightness(0) invert(1);background:transparent;}
.thanks-logo{display:inline-flex;align-items:center;background:#fff;border-radius:18px;padding:12px 18px;margin-bottom:28px;box-shadow:0 12px 28px rgba(0,0,0,.14);}
.thanks-logo img{width:220px;height:auto;display:block;}
@media(max-width:600px){.logo{min-width:150px}.logo img{width:160px}.footer-brand img{width:150px}.thanks-logo img{width:180px}}