@charset "UTF-8";:root{--navy:#10263f;--gold:#b98534;--ink:#263646;--muted:#6c7883;--line:#dde3e8;--soft:#f5f7f8}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Yu Gothic",Meiryo,sans-serif;line-height:1.85}.wrap{width:min(1180px,calc(100% - 48px));margin:auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line)}.header-inner{height:98px;display:flex;align-items:center;justify-content:space-between}.brand{text-decoration:none;display:flex;flex-direction:column}.brand-main{font-family:Georgia,serif;font-size:30px;font-weight:700;letter-spacing:.18em;color:var(--navy)}.brand-sub{font-size:12px;letter-spacing:.14em;margin-top:8px;color:#64717d}.nav{display:flex;gap:30px}.nav a{text-decoration:none;font-size:13px;letter-spacing:.12em}.hero{padding:86px 0;background:linear-gradient(110deg,#fff 0%,#fff 55%,#f4f7f9 100%)}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}.hero-visual img,.visual-row img,.image-band img{width:100%;display:block}.hero-visual img{border:1px solid var(--line);box-shadow:0 22px 55px rgba(16,38,63,.10)}.eyebrow,.section-en{color:var(--gold);font-size:13px;font-weight:700;letter-spacing:.24em}.hero h1,.section h2{color:var(--navy);font-family:Georgia,"Yu Mincho",serif;font-weight:500}.hero h1{font-size:clamp(48px,5.4vw,76px);line-height:1.28;margin:22px 0}.hero-lead{font-size:18px;color:#485968}.hero-actions{display:flex;gap:14px;margin-top:34px}.btn{padding:14px 24px;border:1px solid var(--navy);text-decoration:none;font-weight:700}.primary{background:var(--navy);color:#fff}.section{padding:105px 0}.soft{background:var(--soft)}.two-col{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px}.section h2{font-size:44px;line-height:1.5}.body-copy p{margin:0 0 24px}.section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:40px}.section-head p{color:var(--muted)}.visual-row{display:grid;grid-template-columns:1.05fr .95fr;background:#fff;border:1px solid var(--line);margin-bottom:24px}.visual-copy{padding:40px}.visual-copy span,.service-card span{color:var(--gold);font-weight:700;letter-spacing:.14em}.visual-copy h3{color:var(--navy);font-family:Georgia,"Yu Mincho",serif;font-size:30px}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.service-card{background:#fff;border:1px solid var(--line);padding:32px;min-height:245px}.service-card h3{color:var(--navy);margin:20px 0}.service-card p{font-size:14px;color:#5b6874}.image-band{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:24px}.image-band>div{position:relative;border:1px solid var(--line);overflow:hidden}.image-band b{position:absolute;left:20px;bottom:18px;background:rgba(255,255,255,.92);padding:9px 13px;color:var(--navy);font-size:12px;letter-spacing:.12em}.dark{background:var(--navy);color:#fff}.dark h2{color:#fff}.light{color:#d8b06c}.strength-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:50px}.strength-grid>div{padding:35px;border-right:1px solid rgba(255,255,255,.2)}.strength-grid h3{font-size:22px;letter-spacing:.12em}.strength-grid p{color:#d5dce2}.signature{margin-top:35px;padding-top:20px;border-top:1px solid var(--line)}.company-box{background:#fff;border:1px solid var(--line);margin-top:35px}.company-box dl{margin:0}.company-box dl>div{display:grid;grid-template-columns:220px 1fr;border-bottom:1px solid var(--line)}.company-box dt,.company-box dd{margin:0;padding:20px 24px}.company-box dt{font-weight:700;background:#fafbfc}.contact-card{border:1px solid var(--line);padding:40px}.mail-link{display:inline-block;font-family:Georgia,serif;font-size:28px;color:var(--navy);margin:12px 0}.small{font-size:13px;color:var(--muted)}.privacy{padding:0 0 70px}.privacy details{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.privacy summary{padding:20px 0;font-weight:700}.privacy-body{padding-bottom:20px;color:#60707d;font-size:14px}footer{background:#0b1b2c;color:#d7dee5;padding:34px 0}.foot{display:flex;justify-content:space-between;align-items:end;font-size:12px}.foot strong{display:block;font-family:Georgia,serif;font-size:22px;letter-spacing:.15em;color:#fff}@media(max-width:900px){.nav{display:none}.hero-grid,.two-col,.visual-row{grid-template-columns:1fr;gap:40px}.service-grid{grid-template-columns:1fr 1fr}.strength-grid{grid-template-columns:1fr}.image-band{grid-template-columns:1fr}}@media(max-width:620px){.wrap{width:min(100% - 30px,1180px)}.hero h1{font-size:40px}.section{padding:75px 0}.section h2{font-size:34px}.service-grid{grid-template-columns:1fr}.company-box dl>div{grid-template-columns:1fr}.foot{display:block}}

/* ===== Three B 第2版 最終微調整 ===== */

/* ヘッダーナビをサイトカラーの紺に統一 */
.nav a,
.nav a:link,
.nav a:visited {
  color: var(--navy);
}
.nav a:hover,
.nav a:focus {
  color: var(--gold);
}

/* トップ見出しをわずかに抑えて画像とのバランスを改善 */
.hero h1 {
  font-size: clamp(46px, 5.0vw, 70px);
}

/* 右側メインビジュアルを少し強く見せる */
.hero-grid {
  grid-template-columns: 1fr 1fr;
  gap: 52px;
}
.hero-visual {
  transform: scale(1.035);
  transform-origin: center center;
}

/* 100%表示での自然な収まりを維持 */
@media (max-width: 1100px) {
  .hero-visual {
    transform: none;
  }
}

@media (max-width: 620px) {
  .hero h1 {
    font-size: 39px;
  }
}