:root{
  --navy:#071f3d;
  --navy2:#0a2f57;
  --blue:#0b63ce;
  --sky:#dff3ff;
  --cyan:#19b8c9;
  --mint:#e9fbf4;
  --ink:#102338;
  --text:#44576a;
  --muted:#708397;
  --line:#dfeaf4;
  --bg:#f7fbff;
  --white:#fff;
  --shadow:0 18px 50px rgba(7,31,61,.10);
  --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic","YuGothic","Noto Sans JP",Meiryo,sans-serif;
  color:var(--ink);
  background:linear-gradient(180deg,#ffffff 0%,#f7fbff 38%,#ffffff 100%);
  line-height:1.75;
  letter-spacing:.02em;
}
body.is-menu-open{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit}
.container{width:min(1160px,calc(100% - 40px));margin-inline:auto}
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(223,234,244,.86);
}
.header-inner{
  min-height:76px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{display:inline-flex;align-items:center;text-decoration:none}
.brand img{width:210px;height:auto}
.nav{
  display:flex;
  align-items:center;
  gap:24px;
  margin-left:auto;
  font-size:14px;
  font-weight:700;
  color:#31546f;
}
.nav a{text-decoration:none;transition:color .2s ease}
.nav a:hover{color:var(--blue)}
.header-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:42px;
  padding:0 18px;
  border-radius:999px;
  background:var(--navy);
  color:#fff;
  text-decoration:none;
  font-size:14px;
  font-weight:800;
  box-shadow:0 10px 26px rgba(7,31,61,.16);
}
.menu-button{
  display:none;
  width:46px;
  height:46px;
  border:0;
  border-radius:50%;
  background:#eef6ff;
  margin-left:auto;
}
.menu-button span{
  display:block;
  width:20px;
  height:2px;
  margin:5px auto;
  background:var(--navy);
  transition:.2s;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:50px;
  padding:0 22px;
  border-radius:999px;
  text-decoration:none;
  font-weight:900;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#fff;
  box-shadow:0 14px 34px rgba(11,99,206,.25);
}
.btn-secondary{
  background:#fff;
  color:var(--blue);
  border-color:#cfe6ff;
}
.btn-large{min-height:58px;padding-inline:30px}
.hero{
  position:relative;
  overflow:hidden;
  padding:84px 0 74px;
}
.hero-bg{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.hero-orb{position:absolute;border-radius:999px;filter:blur(3px);opacity:.72}
.hero-orb-1{width:420px;height:420px;right:-120px;top:-160px;background:radial-gradient(circle,#d6f7ff 0%,rgba(214,247,255,0) 70%)}
.hero-orb-2{width:520px;height:520px;left:-180px;bottom:-260px;background:radial-gradient(circle,#dcecff 0%,rgba(220,236,255,0) 70%)}
.hero-line{
  position:absolute;
  left:0;
  right:0;
  bottom:30px;
  height:210px;
  background:linear-gradient(130deg,rgba(11,99,206,.10),rgba(25,184,201,.02));
  clip-path:polygon(0 62%,100% 20%,100% 100%,0 100%);
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:.92fr 1.08fr;
  gap:48px;
  align-items:center;
}
.eyebrow,.section-kicker{
  margin:0 0 14px;
  color:var(--blue);
  font-size:13px;
  line-height:1.4;
  font-weight:900;
  letter-spacing:.18em;
  text-transform:uppercase;
}
.hero h1{
  margin:0;
  font-size:clamp(40px,5.7vw,72px);
  line-height:1.08;
  letter-spacing:-.04em;
}
.hero h1 span{
  color:var(--blue);
  position:relative;
}
.hero h1 span:after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:8px;
  height:12px;
  background:#d9f5ff;
  z-index:-1;
}
.lead{
  margin:28px 0 0;
  color:#40566e;
  font-size:17px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  margin-top:34px;
}
.hero-stats div{
  padding:18px 14px;
  border:1px solid var(--line);
  border-radius:18px;
  background:rgba(255,255,255,.86);
  box-shadow:0 10px 25px rgba(7,31,61,.05);
}
.hero-stats strong{
  display:block;
  font-size:32px;
  line-height:1;
  color:var(--blue);
  font-weight:950;
}
.hero-stats span{
  display:block;
  margin-top:8px;
  font-size:12px;
  color:var(--muted);
  font-weight:800;
}
.hero-visual{
  position:relative;
}
.hero-visual img{
  border-radius:34px;
  box-shadow:var(--shadow);
  border:1px solid rgba(255,255,255,.7);
}
.hero-note-card{
  position:absolute;
  left:28px;
  bottom:28px;
  width:min(420px,calc(100% - 56px));
  padding:18px 20px;
  border-radius:20px;
  background:rgba(255,255,255,.92);
  box-shadow:0 16px 40px rgba(7,31,61,.16);
  backdrop-filter:blur(14px);
}
.hero-note-card span{
  display:block;
  color:var(--blue);
  font-size:12px;
  font-weight:900;
  letter-spacing:.12em;
}
.hero-note-card strong{display:block;margin-top:4px;font-size:18px}
.intro-section{padding:32px 0 76px}
.intro-layout{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:24px;
}
.intro-card{
  padding:34px;
  border-radius:var(--radius);
  color:#fff;
  background:linear-gradient(145deg,var(--navy),#0d4f87);
  box-shadow:var(--shadow);
}
.intro-card .section-kicker{color:#95e9ff}
.intro-card h2{margin:0;font-size:30px;line-height:1.35;letter-spacing:-.04em}
.intro-card p:last-child{margin-bottom:0;color:#d9ecff}
.intro-points{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}
.intro-points article{
  padding:26px 22px;
  border-radius:var(--radius);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:0 14px 36px rgba(7,31,61,.06);
}
.intro-points span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:50%;
  color:#fff;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  font-weight:900;
  margin-bottom:18px;
}
.intro-points strong{display:block;font-size:17px}
.intro-points p{margin:.55em 0 0;color:var(--text);font-size:14px}
.section{padding:86px 0}
.section-heading{margin-bottom:32px}
.section-heading.center{text-align:center}
.section-heading h2{
  margin:0;
  font-size:clamp(32px,4vw,48px);
  line-height:1.25;
  letter-spacing:-.04em;
}
.section-heading p:last-child{margin:12px 0 0;color:var(--text)}
.cases-section{
  background:
    radial-gradient(circle at 12% 6%,#e4f6ff 0%,rgba(228,246,255,0) 28%),
    linear-gradient(180deg,#f7fbff 0%,#fff 100%);
}
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:28px;
}
.filter-button{
  appearance:none;
  border:1px solid #cfe0ee;
  border-radius:999px;
  padding:10px 18px;
  background:#fff;
  color:#426179;
  font-weight:900;
  cursor:pointer;
  transition:.2s ease;
  box-shadow:0 8px 20px rgba(7,31,61,.04);
}
.filter-button:hover,.filter-button.is-active{
  background:var(--navy);
  border-color:var(--navy);
  color:#fff;
}
.case-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.case-card{
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:28px;
  background:#fff;
  box-shadow:0 16px 42px rgba(7,31,61,.08);
  transition:transform .2s ease,box-shadow .2s ease,opacity .2s ease;
}
.case-card:hover{
  transform:translateY(-4px);
  box-shadow:0 24px 58px rgba(7,31,61,.14);
}
.case-card.is-hidden{display:none}
.case-card--wide{
  grid-column:span 3;
  display:grid;
  grid-template-columns:1fr 1.1fr;
}
.case-image{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#eaf6ff;
}
.case-card--wide .case-image{aspect-ratio:auto;min-height:100%}
.case-image img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .25s ease;
}
.case-card:hover .case-image img{transform:scale(1.03)}
.case-image span{
  position:absolute;
  top:16px;
  left:16px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:36px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(7,31,61,.88);
  color:#fff;
  font-size:12px;
  font-weight:950;
  letter-spacing:.10em;
}
.case-body{padding:24px}
.case-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:16px;
}
.case-meta span{
  display:inline-flex;
  border-radius:999px;
  background:#eef7ff;
  color:#0b63ce;
  padding:6px 10px;
  font-size:11px;
  font-weight:900;
}
.case-body h3{
  margin:0;
  font-size:21px;
  line-height:1.45;
  letter-spacing:-.03em;
}
.case-body p{
  color:var(--text);
  margin:12px 0 18px;
  font-size:14.5px;
}
.case-body dl{margin:0;display:grid;gap:10px}
.case-body dl div{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:10px;
  padding-top:10px;
  border-top:1px dashed #dbe7f1;
}
.case-body dt{
  color:var(--blue);
  font-size:12px;
  font-weight:950;
}
.case-body dd{
  margin:0;
  color:#425970;
  font-size:13px;
}
.case-note{
  color:var(--muted);
  font-size:13px;
  margin:22px 0 0;
}
.support-section{background:linear-gradient(180deg,#fff 0%,#f2f9ff 100%)}
.support-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.support-grid article{
  border:1px solid var(--line);
  border-radius:28px;
  overflow:hidden;
  background:#fff;
  box-shadow:0 16px 42px rgba(7,31,61,.08);
}
.support-grid img{width:100%;aspect-ratio:16/9;object-fit:cover}
.support-grid article div{padding:24px}
.support-grid span{
  color:var(--blue);
  font-size:13px;
  font-weight:950;
  letter-spacing:.16em;
}
.support-grid h3{margin:8px 0 10px;font-size:22px;line-height:1.4}
.support-grid p{margin:0;color:var(--text)}
.flow-section{
  background:
    linear-gradient(135deg,rgba(7,31,61,.95),rgba(8,69,110,.92)),
    radial-gradient(circle at 15% 30%,rgba(25,184,201,.55),rgba(25,184,201,0) 30%);
  color:#fff;
}
.flow-layout{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:42px;
  align-items:start;
}
.flow-copy{
  position:sticky;
  top:110px;
}
.flow-copy .section-kicker{color:#94edff}
.flow-copy h2{
  margin:0;
  font-size:clamp(31px,4vw,47px);
  line-height:1.28;
  letter-spacing:-.04em;
}
.flow-copy p{color:#d9ecff;margin:20px 0 28px}
.flow-steps{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px;
}
.flow-steps article{
  padding:26px;
  border-radius:24px;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(12px);
}
.flow-steps span{
  color:#99f0ff;
  font-size:12px;
  font-weight:950;
  letter-spacing:.14em;
}
.flow-steps h3{margin:10px 0 8px;font-size:22px}
.flow-steps p{margin:0;color:#d9ecff;font-size:14.5px}
.faq-section{background:#fff}
.faq-list{max-width:900px;margin:0 auto}
.faq-item{
  border:1px solid var(--line);
  border-radius:20px;
  margin-bottom:12px;
  overflow:hidden;
  background:#fff;
  box-shadow:0 10px 24px rgba(7,31,61,.04);
}
.faq-item button{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  border:0;
  background:#fff;
  color:var(--ink);
  padding:20px 22px;
  text-align:left;
  font-size:16px;
  font-weight:900;
  cursor:pointer;
}
.faq-item button span{color:var(--blue);font-size:22px}
.faq-answer{
  display:none;
  padding:0 22px 20px;
  color:var(--text);
}
.faq-item.is-open .faq-answer{display:block}
.faq-item.is-open button span{transform:rotate(45deg)}
.faq-answer p{margin:0}
.final-cta{
  padding:86px 0;
  background:
    radial-gradient(circle at 90% 10%,#dff7ef 0%,rgba(223,247,239,0) 34%),
    linear-gradient(135deg,#f7fbff,#ffffff);
}
.final-cta-inner{
  text-align:center;
  padding:56px 30px;
  border:1px solid #d9e8f6;
  border-radius:36px;
  background:#fff;
  box-shadow:var(--shadow);
}
.final-cta h2{
  margin:0;
  font-size:clamp(31px,4vw,48px);
  line-height:1.32;
  letter-spacing:-.04em;
}
.final-cta p{color:var(--text);max-width:720px;margin:18px auto 28px}
.site-footer{
  background:linear-gradient(135deg,#061b35,#082c55);
  color:#d8e8f8;
  padding:58px 0 22px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr .9fr .9fr .8fr;
  gap:36px;
}
.footer-about img{width:220px}
.footer-about p{color:#c7dcef;font-size:14px;margin:16px 0 0}
.footer-company{padding-top:12px}
.footer-links h3{
  margin:0 0 13px;
  color:#fff;
  font-size:15px;
}
.footer-links a{
  display:block;
  width:max-content;
  max-width:100%;
  color:#d8e8f8;
  text-decoration:none;
  font-size:14px;
  margin:8px 0;
  border-bottom:1px solid transparent;
}
.footer-links a:hover{border-bottom-color:#8edfff}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:20px;
  padding-top:28px;
  margin-top:32px;
  border-top:1px solid rgba(255,255,255,.13);
  color:#a9c1d8;
  font-size:13px;
}
.footer-bottom p{margin:0}
.footer-bottom a{color:#d8e8f8;text-decoration:none}
@media (max-width:980px){
  .header-inner{gap:16px}
  .brand img{width:188px}
  .nav{
    position:fixed;
    inset:76px 16px auto 16px;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:16px;
    border-radius:22px;
    background:#fff;
    box-shadow:var(--shadow);
  }
  .nav a{padding:13px 10px;border-bottom:1px solid #edf3f8}
  .nav.is-open{display:flex}
  .menu-button{display:block}
  .header-cta{display:none}
  .hero-grid,.intro-layout,.flow-layout{grid-template-columns:1fr}
  .flow-copy{position:relative;top:auto}
  .intro-points,.support-grid{grid-template-columns:1fr}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .case-card--wide{grid-column:span 2;grid-template-columns:1fr}
  .case-card--wide .case-image{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  .container{width:min(100% - 28px,1160px)}
  .hero{padding:58px 0 48px}
  .hero-stats{grid-template-columns:1fr}
  .case-grid,.flow-steps{grid-template-columns:1fr}
  .case-card--wide{grid-column:auto}
  .hero-note-card{position:static;width:auto;margin-top:12px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{display:block}
  .section{padding:64px 0}
}