:root{
  --ink:#0b1b33;
  --sub:#5e6c80;
  --blue:#0b69d1;
  --blue-soft:#eaf4ff;
  --green:#10a556;
  --green-soft:#eaf8f0;
  --line:#e6ebf1;
  --soft:#f6f8fa;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Noto Sans JP","Helvetica Neue",sans-serif;
  background:#fff;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
.container{width:min(1180px,calc(100% - 48px));margin:auto}
.section{padding:120px 0}
.section-label{
  margin:0 0 16px;
  font-size:12px;
  font-weight:800;
  letter-spacing:.16em;
  color:#7a8798;
}
.section-label.blue{color:var(--blue)}
.section-label.green{color:var(--green)}
.mobile-only{display:none}

/* Header */
.site-header{
  position:fixed;top:0;left:0;right:0;
  height:60px;
  z-index:100;
  background:rgba(255,255,255,.78);
  border-bottom:1px solid rgba(0,0,0,.05);
  backdrop-filter:blur(20px) saturate(180%);
}
.nav-shell{
  width:min(1180px,calc(100% - 48px));
  height:60px;margin:auto;
  display:flex;align-items:center;gap:28px;
}
.brand{width:150px}
.desktop-nav{
  margin-left:auto;
  display:flex;gap:28px;
  font-size:13px;font-weight:700;color:#36445a;
}
.desktop-nav a:hover{color:var(--blue)}
.nav-cta{
  padding:9px 16px;border-radius:999px;
  background:#0d4d8e;color:#fff;font-size:13px;font-weight:800;
}
.menu-toggle,.mobile-nav{display:none}

/* Hero */
.hero{
  position:relative;
  min-height:860px;
  display:flex;
  align-items:center;
  overflow:hidden;
  padding-top:60px;
}
.hero-parallax{
  position:absolute;inset:-80px 0;
  background:url("road-bg.jpg") center 48% / cover no-repeat;
  transform:scale(1.06);
  will-change:transform;
}
.hero-overlay{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(255,255,255,.98) 0%,rgba(255,255,255,.93) 33%,rgba(255,255,255,.58) 58%,rgba(255,255,255,.14) 100%),
    linear-gradient(180deg,rgba(255,255,255,.08) 0%,rgba(255,255,255,.12) 62%,#fff 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:70px;
  align-items:center;
}
.hero-copy{max-width:680px}
.eyebrow{
  margin:0 0 24px;
  color:#1768b7;
  font-weight:800;
  letter-spacing:.05em;
}
.hero h1{
  margin:0;
  font-size:clamp(58px,7vw,96px);
  line-height:1.02;
  letter-spacing:-.055em;
}
.hero h1 span{color:#0c294f}
.hero-sub{
  margin:24px 0 0;
  font-size:28px;
  font-weight:700;
}
.hero-text{
  margin:22px 0 0;
  max-width:620px;
  color:#42536b;
  font-size:17px;
  line-height:1.85;
}
.hero-actions{
  display:flex;gap:14px;flex-wrap:wrap;
  margin-top:34px;
}
.button{
  display:inline-flex;
  min-height:52px;
  padding:0 24px;
  align-items:center;justify-content:center;
  border-radius:999px;
  font-weight:800;font-size:14px;
  border:0;cursor:pointer;
  transition:.2s;
}
.button:hover{transform:translateY(-2px)}
.button-line{background:#06c755;color:#fff}
.button-outline{background:rgba(255,255,255,.82);border:1px solid #7fa9d3;color:#0d4d8e}
.button-dark{background:#111;color:#fff}
.button-primary{background:var(--blue);color:#fff}
.hero-proof{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  margin-top:38px;
}
.hero-proof div{
  padding:18px;
  border-radius:20px;
  background:rgba(255,255,255,.72);
  border:1px solid rgba(255,255,255,.8);
  backdrop-filter:blur(10px);
}
.hero-proof strong{display:block;font-size:14px}
.hero-proof span{display:block;margin-top:4px;color:#65758a;font-size:12px}
.hero-message{
  align-self:start;
  margin-top:110px;
  justify-self:end;
  max-width:360px;
  transform:rotate(-4deg);
  color:#194d86;
}
.hero-message span{display:block;font-size:30px;font-family:serif}
.hero-message strong{display:block;font-size:38px;font-family:serif;font-weight:500}
.hero-message i{display:block;width:100%;height:2px;background:#3d83cb;margin:18px 0}
.hero-message small{letter-spacing:.28em;color:#5d87b5}

/* Approach */
.approach{background:#fff}
.section-heading.center{text-align:center}
.section-heading h2{
  margin:0;
  font-size:56px;
  line-height:1.1;
  letter-spacing:-.045em;
}
.section-heading>p:last-child{
  margin:18px auto 0;
  max-width:760px;
  color:var(--sub);
  font-size:17px;
}
.approach-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:22px;
  margin-top:52px;
}
.approach-card{
  min-height:310px;
  padding:42px;
  border-radius:30px;
  overflow:hidden;
  position:relative;
}
.approach-card::after{
  content:"";
  position:absolute;
  right:-40px;bottom:-60px;
  width:240px;height:240px;border-radius:50%;
  opacity:.24;
}
.blue-card{background:linear-gradient(145deg,#f1f7ff,#e3f0ff)}
.green-card{background:linear-gradient(145deg,#f1fbf5,#e4f6eb)}
.blue-card::after{background:#7bbcff}
.green-card::after{background:#7ed5a2}
.approach-no{color:#8a98aa;font-size:13px;font-weight:800}
.approach-card h3{margin:4px 0 0;font-size:44px;letter-spacing:-.04em}
.approach-card p:not(.section-label){color:#53647a;max-width:440px}
.approach-card a{position:absolute;left:42px;bottom:38px;font-weight:800;color:#145fae}

/* Pillars */
.pillar-heading{max-width:820px;margin-bottom:56px}
.pillar-heading h2{
  margin:0;
  font-size:70px;
  line-height:1;
  letter-spacing:-.05em;
}
.pillar-heading>p:last-child{color:var(--sub);font-size:18px}
.green-section{background:#f8fbf9}
.service-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:22px;
}
.service-card{
  min-height:390px;
  padding:46px;
  border-radius:32px;
  background:#f6f7f9;
  display:flex;flex-direction:column;
}
.blue-grid .service-card:nth-child(1),
.blue-grid .service-card:nth-child(4){background:linear-gradient(145deg,#f5f9ff,#edf4ff)}
.green-grid .service-card:nth-child(2),
.green-grid .service-card:nth-child(3){background:linear-gradient(145deg,#f5fbf8,#eaf7f0)}
.service-icon{
  width:88px;height:88px;
  display:grid;place-items:center;
  border-radius:50%;
  margin-bottom:30px;
}
.blue-icon{background:#e5f1ff;color:var(--blue)}
.green-icon{background:#e4f6ec;color:var(--green)}
.service-icon svg{
  width:46px;height:46px;
  fill:none;stroke:currentColor;stroke-width:2.4;
  stroke-linecap:round;stroke-linejoin:round;
}
.service-card h3{margin:0;font-size:34px;letter-spacing:-.03em}
.service-card p{margin:16px 0 0;color:var(--sub);font-size:16px;line-height:1.8}

/* About */
.about-card{
  padding:68px;
  border-radius:36px;
  color:#fff;
  background:linear-gradient(135deg,#111823,#22344b);
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:70px;
}
.about-card h2{margin:0;font-size:52px;line-height:1.08;letter-spacing:-.04em}
.about-card>div>p:last-child{color:#b9c3d0;font-size:17px}
.about-points{display:grid;gap:12px}
.about-points div{
  padding:20px 22px;
  border-radius:18px;
  background:rgba(255,255,255,.08);
  display:flex;gap:18px;align-items:center;
}
.about-points strong{color:#84bdff}
.about-points span{font-weight:700}

/* Contact */
.contact{background:#f5f6f8}
.contact-choice{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:22px;
  margin-top:46px;
}
.contact-card{
  min-height:360px;
  padding:42px;
  border-radius:30px;
  display:flex;flex-direction:column;
}
.line-card{background:linear-gradient(145deg,#ecfff4,#e0f7e9)}
.form-card{background:linear-gradient(145deg,#fff,#eceff3)}
.contact-card>span{font-size:11px;font-weight:800;color:#788496}
.contact-card h3{margin:24px 0 0;font-size:38px;line-height:1.05}
.contact-card p{color:var(--sub)}
.contact-card .button{margin-top:auto;align-self:flex-start}
.diagnosis-panel,.inquiry-form{
  margin-top:22px;
  padding:42px;
  border-radius:30px;
  background:#fff;
}
.diagnosis-panel h3,.inquiry-form h3{margin:0;font-size:32px}
.diagnosis-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:12px;margin-top:26px;
}
.diagnosis-grid button{
  min-height:72px;
  border:1px solid var(--line);
  border-radius:16px;
  background:#fafbfc;
  font-weight:700;
}
.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
  margin-top:28px;
}
.form-grid .full{grid-column:1/-1}
.form-grid span{display:block;margin-bottom:8px;font-size:13px;font-weight:700}
input,select,textarea{
  width:100%;
  padding:14px 15px;
  border-radius:14px;
  border:1px solid #d8dfe7;
  background:#fbfcfd;
}
.form-submit{margin-top:24px}
.note{color:#8a94a2;font-size:12px}

/* Footer */
footer{background:#fff}
.footer-inner{
  min-height:150px;
  display:grid;
  grid-template-columns:150px 1fr auto;
  align-items:center;
  gap:26px;
  border-top:1px solid #eceff3;
  color:#758197;
  font-size:12px;
}
.footer-inner img{width:145px}

/* Reveal + parallax */
.reveal{
  opacity:0;
  transform:translateY(26px);
  transition:opacity .7s ease,transform .7s ease;
}
.reveal.is-visible{opacity:1;transform:none}
[data-parallax]{
  --py:0px;
  translate:0 var(--py);
  will-change:transform;
}

/* Tablet */
@media(max-width:1024px){
  .desktop-nav{display:none}
  .nav-cta{margin-left:auto}
  .menu-toggle{
    display:flex;
    width:40px;height:40px;
    flex-direction:column;align-items:center;justify-content:center;gap:6px;
    border:0;background:transparent;
  }
  .menu-toggle span{width:22px;height:2px;background:#16385c;transition:.2s}
  .menu-toggle.active span:first-child{transform:translateY(4px) rotate(45deg)}
  .menu-toggle.active span:last-child{transform:translateY(-4px) rotate(-45deg)}
  .mobile-nav{
    position:fixed;
    top:60px;left:0;right:0;
    display:grid;
    max-height:0;overflow:hidden;
    background:rgba(255,255,255,.97);
    transition:max-height .3s ease;
  }
  .mobile-nav.open{max-height:300px;border-bottom:1px solid var(--line)}
  .mobile-nav a{padding:15px 24px;border-top:1px solid #f0f2f5;font-weight:700}
  .hero-inner{grid-template-columns:1fr .7fr;gap:30px}
  .hero-message{margin-top:160px}
  .about-card{gap:38px;padding:52px}
}

/* Mobile */
@media(max-width:720px){
  .container{width:min(100% - 30px,1180px)}
  .section{padding:82px 0}
  .mobile-only{display:block}
  .site-header,.nav-shell{height:54px}
  .nav-shell{width:calc(100% - 26px)}
  .brand{width:124px}
  .nav-cta{font-size:12px;padding:8px 13px}
  .mobile-nav{top:54px}

  .hero{
    min-height:920px;
    padding-top:54px;
    align-items:flex-start;
  }
  .hero-parallax{
    inset:-40px 0;
    background-position:center 44%;
  }
  .hero-overlay{
    background:
      linear-gradient(180deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.90) 44%,rgba(255,255,255,.62) 64%,rgba(255,255,255,.18) 82%,#fff 100%);
  }
  .hero-inner{
    grid-template-columns:1fr;
    gap:16px;
    padding-top:78px;
  }
  .eyebrow{font-size:12px;margin-bottom:18px}
  .hero h1{
    font-size:clamp(46px,14vw,64px);
    line-height:1.02;
  }
  .hero-sub{font-size:22px;margin-top:18px}
  .hero-text{font-size:15px;line-height:1.8}
  .hero-actions{display:grid;grid-template-columns:1fr}
  .button{width:100%}
  .hero-proof{
    grid-template-columns:1fr;
    margin-top:20px;
  }
  .hero-proof div{padding:14px}
  .hero-message{
    order:2;
    justify-self:end;
    margin-top:10px;
    max-width:280px;
    opacity:.8;
  }
  .hero-message span{font-size:20px}
  .hero-message strong{font-size:28px}
  .hero-message small{font-size:9px}

  .section-heading h2{font-size:40px}
  .section-heading>p:last-child{font-size:15px}
  .approach-grid{grid-template-columns:1fr}
  .approach-card{min-height:280px;padding:32px}
  .approach-card h3{font-size:38px}
  .approach-card a{left:32px;bottom:30px}

  .pillar-heading h2{font-size:48px}
  .pillar-heading>p:last-child{font-size:16px}

  /* mobile-first: icon -> title -> description, vertically centered */
  .service-grid{grid-template-columns:1fr}
  .service-card{
    min-height:auto;
    padding:46px 26px 40px;
    align-items:center;
    text-align:center;
    border-radius:28px;
  }
  .service-icon{
    width:116px;height:116px;
    margin-bottom:26px;
  }
  .service-icon svg{width:56px;height:56px}
  .service-card h3{font-size:32px}
  .service-card p{
    max-width:340px;
    font-size:15px;
  }

  .about-card{
    grid-template-columns:1fr;
    padding:38px 26px;
    border-radius:28px;
  }
  .about-card h2{font-size:38px}
  .contact-choice{grid-template-columns:1fr}
  .contact-card{padding:34px 26px}
  .contact-card h3{font-size:34px}
  .diagnosis-panel,.inquiry-form{padding:30px 20px}
  .diagnosis-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-grid .full{grid-column:auto}
  .footer-inner{
    grid-template-columns:1fr;
    gap:14px;
    padding:34px 0;
    text-align:center;
  }
  .footer-inner img{margin:auto}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none;transition:none}
  [data-parallax]{translate:none!important;will-change:auto}
}