:root{
  --blue-900:#0b2e52;
  --blue-800:#123b66;
  --blue-700:#1a4d82;
  --blue-600:#2563a8;
  --blue-500:#3b82c4;
  --blue-100:#e8f1fa;
  --blue-50:#f4f9fd;
  --ink:#1f2937;
  --ink-soft:#4b5563;
  --line:#e2e8f0;
  --radius:14px;
  --maxw:1140px;
}
*{box-sizing:border-box;}
[hidden]{display:none !important;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Noto Sans JP',sans-serif;
  color:var(--ink);
  background:#fff;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:'Noto Serif JP',serif;margin:0;color:var(--blue-900);}
p{margin:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.sp-only{display:none;}
i[data-lucide]{width:1em;height:1em;stroke-width:2;vertical-align:-0.15em;}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,0.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px;}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.15rem;color:var(--blue-900);}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:var(--blue-700);color:#fff;font-size:1.1rem;}
.nav-desktop{display:flex;align-items:center;gap:32px;font-weight:500;font-size:0.95rem;}
.nav-desktop a{color:var(--ink-soft);transition:color .2s;}
.nav-desktop a:hover{color:var(--blue-700);}
.nav-cta{background:var(--blue-700);color:#fff !important;padding:12px 22px;border-radius:999px;font-weight:700;}
.nav-cta:hover{background:var(--blue-800);}
.nav-toggle{display:none;background:none;border:none;font-size:1.6rem;color:var(--blue-900);cursor:pointer;}
.nav-mobile{display:none;flex-direction:column;background:#fff;border-top:1px solid var(--line);padding:8px 24px 20px;}
.nav-mobile a{padding:14px 0;border-bottom:1px solid var(--line);font-weight:500;color:var(--ink);}
.nav-mobile .nav-cta{text-align:center;margin-top:12px;border-bottom:none;}
.nav-mobile.open{display:flex;}

/* hero */
.hero{position:relative;color:#fff;padding:120px 0 90px;overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(120deg, rgba(11,46,82,0.92) 0%, rgba(18,59,102,0.85) 55%, rgba(37,99,168,0.65) 100%);}
.hero-inner{position:relative;z-index:2;max-width:720px;}
.hero-eyebrow{font-weight:700;letter-spacing:.04em;margin-bottom:18px;color:var(--blue-100);}
.hero h1{font-size:2.5rem;line-height:1.5;margin-bottom:22px;color:#fff;}
.hero-lead{font-size:1.02rem;color:#dce9f6;margin-bottom:34px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:34px;}
.btn{display:inline-flex;align-items:center;gap:8px;padding:16px 30px;border-radius:999px;font-weight:700;font-size:1rem;transition:all .2s;}
.btn-primary{background:#f2a93b;color:var(--blue-900);}
.btn-primary:hover{background:#e49a28;}
.btn-outline{border:2px solid rgba(255,255,255,0.6);color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,0.12);}
.btn-block{width:100%;justify-content:center;}
.hero-badges{list-style:none;display:flex;flex-wrap:wrap;gap:22px;padding:0;margin:0;font-size:.9rem;color:#e6f0fa;}
.hero-badges li{display:flex;align-items:center;gap:6px;}
.hero-badges i{color:#9fd3a3;}

/* about */
.about{padding:100px 0;}
.about-grid{display:grid;grid-template-columns:0.9fr 1.1fr;gap:60px;align-items:center;}
.about-img img{border-radius:var(--radius);box-shadow:0 20px 50px rgba(11,46,82,0.18);}
.section-eyebrow{color:var(--blue-600);font-weight:700;letter-spacing:.08em;font-size:.82rem;margin-bottom:10px;}
.section-eyebrow.center{text-align:center;}
.about-copy h2{font-size:1.7rem;line-height:1.6;margin-bottom:22px;}
.about-copy p{color:var(--ink-soft);margin-bottom:16px;}

/* strengths */
.strengths{background:var(--blue-50);padding:100px 0;}
.section-title{font-size:1.9rem;margin-bottom:50px;}
.section-title.center{text-align:center;}
.strength-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.strength-card{background:#fff;border-radius:var(--radius);padding:38px 30px;text-align:center;box-shadow:0 10px 30px rgba(11,46,82,0.06);}
.strength-icon{width:62px;height:62px;border-radius:50%;background:var(--blue-100);color:var(--blue-700);display:flex;align-items:center;justify-content:center;font-size:1.6rem;margin:0 auto 20px;}
.strength-card h3{font-size:1.1rem;margin-bottom:14px;line-height:1.6;}
.strength-card p{color:var(--ink-soft);font-size:.92rem;}

/* flow */
.flow{padding:100px 0;}
.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.flow-step{position:relative;padding:34px 22px;border:1px solid var(--line);border-radius:var(--radius);text-align:center;}
.flow-num{width:44px;height:44px;border-radius:50%;background:var(--blue-700);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-family:'Noto Serif JP',serif;margin:0 auto 18px;}
.flow-step h3{font-size:1rem;margin-bottom:10px;}
.flow-step p{color:var(--ink-soft);font-size:.88rem;}

/* faq */
.faq{background:var(--blue-50);padding:100px 0;}
.faq-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{background:#fff;border-radius:12px;padding:22px 26px;border:1px solid var(--line);}
.faq-item summary{cursor:pointer;font-weight:700;list-style:none;display:flex;align-items:center;justify-content:space-between;color:var(--blue-900);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item[open] summary i{transform:rotate(180deg);}
.faq-item summary i{transition:transform .2s;color:var(--blue-600);}
.faq-item p{margin-top:14px;color:var(--ink-soft);font-size:.92rem;}

/* contact */
.contact{padding:100px 0;}
.contact-grid{display:grid;grid-template-columns:0.85fr 1.15fr;gap:60px;align-items:start;}
.contact-intro h2{font-size:1.8rem;margin:10px 0 18px;}
.contact-intro p{color:var(--ink-soft);margin-bottom:28px;}
.contact-tel{display:flex;gap:16px;align-items:center;background:var(--blue-50);border-radius:var(--radius);padding:24px;}
.contact-tel i{font-size:1.8rem;color:var(--blue-700);}
.tel-label{display:block;font-size:.85rem;color:var(--ink-soft);}
.contact-tel a{display:block;font-size:1.5rem;font-weight:700;color:var(--blue-900);}
.tel-hours{display:block;font-size:.8rem;color:var(--ink-soft);margin-top:4px;}
.contact-form{background:var(--blue-50);border-radius:var(--radius);padding:36px;display:flex;flex-direction:column;gap:18px;}
.contact-form label{font-weight:700;font-size:.9rem;color:var(--blue-900);display:flex;flex-direction:column;gap:8px;}
.label-row{display:inline-flex;align-items:center;}
.req{background:#d94b4b;color:#fff;font-size:.7rem;font-weight:700;padding:2px 8px;border-radius:999px;margin-left:8px;}
.contact-form input,.contact-form textarea{font-family:inherit;font-size:.95rem;padding:14px 16px;border-radius:8px;border:1px solid var(--line);font-weight:400;color:var(--ink);resize:vertical;}
.contact-form input:focus,.contact-form textarea:focus{outline:2px solid var(--blue-500);}
.form-done{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:var(--blue-50);border-radius:var(--radius);padding:60px 36px;text-align:center;color:var(--blue-800);}
.form-done i{width:48px;height:48px;color:#2e9e5b;}

/* footer */
.site-footer{background:var(--blue-900);color:#cfe0f2;padding:50px 0;}
.footer-inner{text-align:center;}
.footer-logo{display:flex;align-items:center;justify-content:center;gap:8px;font-weight:700;color:#fff;font-size:1.05rem;margin-bottom:14px;}
.footer-note{font-size:.8rem;color:#9fb6cf;margin-bottom:14px;}
.footer-copy{font-size:.78rem;color:#7f99b6;}

/* responsive */
@media (max-width:960px){
  .about-grid,.contact-grid{grid-template-columns:1fr;}
  .strength-grid{grid-template-columns:1fr;}
  .flow-steps{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:760px){
  .nav-desktop{display:none;}
  .nav-toggle{display:block;}
  .sp-only{display:inline;}
  .pc-only{display:none;}
  .hero{padding:90px 0 60px;}
  .hero h1{font-size:1.7rem;}
  .about,.strengths,.flow,.faq,.contact{padding:64px 0;}
  .flow-steps{grid-template-columns:1fr;}
}