:root{
  --navy:#071a2f;
  --blue:#0c5ca8;
  --sky:#eaf5ff;
  --red:#e53935;
  --gold:#c7a35a;
  --ink:#172033;
  --muted:#6b7280;
  --line:#e8edf3;
  --white:#fff;
  --radius:24px;
  --shadow:0 24px 70px rgba(7,26,47,.16);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Noto Sans JP',system-ui,-apple-system,BlinkMacSystemFont,sans-serif;color:var(--ink);background:#fbfcfe;line-height:1.8}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}.container{width:min(1120px,calc(100% - 40px));margin:auto}.section{padding:96px 0}.section-kicker{margin:0 0 10px;color:var(--blue);font-weight:900;letter-spacing:.14em;font-size:13px}.section-head{text-align:center;margin-bottom:42px}.section-head h2,.intro h2,.feature h2,.about h2,.access h2,.cta h2{font-family:'Zen Old Mincho',serif;font-size:clamp(30px,4vw,48px);line-height:1.35;margin:0 0 14px}.section-head p{margin:0;color:var(--muted)}.row-head{display:flex;align-items:end;justify-content:space-between;text-align:left}.page-loader{position:fixed;inset:0;background:var(--navy);z-index:9999;display:grid;place-items:center;transition:.5s}.page-loader span{width:42px;height:42px;border:3px solid rgba(255,255,255,.25);border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite}.page-loaded .page-loader{opacity:0;visibility:hidden}@keyframes spin{to{transform:rotate(360deg)}}
.site-header{position:fixed;top:0;left:0;right:0;z-index:50;padding:18px 0;transition:.3s}.site-header.is-scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(18px);box-shadow:0 10px 35px rgba(7,26,47,.08);padding:10px 0}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;background:rgba(255,255,255,.96);border-radius:999px;padding:8px 14px;box-shadow:0 10px 30px rgba(7,26,47,.10)}.brand-logo{width:198px;height:auto;display:block}.is-scrolled .brand{background:#fff}.global-nav{display:flex;gap:26px;color:#fff;font-weight:700;font-size:14px}.is-scrolled .global-nav{color:var(--ink)}.global-nav a{position:relative}.global-nav a:after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--red);transition:.25s}.global-nav a:hover:after{width:100%}.header-actions{display:flex;align-items:center;gap:12px}.tel{color:#fff;font-weight:900}.is-scrolled .tel{color:var(--navy)}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 22px;font-weight:900;transition:.25s;border:1px solid transparent}.btn:hover{transform:translateY(-2px)}.btn-primary{background:linear-gradient(135deg,var(--red),#ff7a18);color:#fff;box-shadow:0 12px 30px rgba(229,57,53,.24)}.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.08)}.btn-large{padding:15px 28px}.btn-dark{background:var(--navy);color:#fff}.btn-light{background:#fff;color:var(--navy)}.menu-btn{display:none;background:transparent;border:0;width:42px;height:42px}.menu-btn span{display:block;height:2px;background:currentColor;margin:8px 0;color:#fff}.is-scrolled .menu-btn span{color:var(--navy)}.mobile-nav{display:none}
.hero{min-height:790px;position:relative;display:flex;align-items:center;overflow:hidden;color:#fff}.hero-bg{position:absolute;inset:0;background:linear-gradient(rgba(0,0,0,.1),rgba(0,0,0,.1)),url('https://hakoseki.jp/images/01.jpg') center/cover no-repeat;transform:scale(1.04)}.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,26,47,.86),rgba(7,26,47,.45) 52%,rgba(7,26,47,.08))}.hero-content{position:relative;z-index:2;padding-top:70px}.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:7px 14px;background:rgba(255,255,255,.08);font-weight:900;letter-spacing:.08em}.hero h1{font-family:'Zen Old Mincho',serif;font-size:clamp(38px,6vw,72px);line-height:1.18;margin:22px 0}.lead{max-width:690px;font-size:18px;color:rgba(255,255,255,.9)}.hero-buttons{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}.hero-card{position:absolute;right:8vw;bottom:70px;z-index:2;background:rgba(255,255,255,.92);color:var(--navy);border-radius:var(--radius);padding:26px 30px;box-shadow:var(--shadow);min-width:280px}.hero-card span{color:var(--blue);font-weight:900;font-size:12px;letter-spacing:.12em}.hero-card strong{display:block;font-size:28px;margin:4px 0}.hero-card p{margin:0;color:var(--muted)}
.intro{background:#fff}.intro-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;align-items:center}.intro p:last-child{font-size:17px;color:#445066;margin:0}.services{background:linear-gradient(180deg,#f5f9ff,#fff)}.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.service-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;min-height:310px;box-shadow:0 12px 45px rgba(7,26,47,.06);transition:.3s}.service-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}.service-card-accent{background:linear-gradient(145deg,var(--navy),#113d67);color:#fff}.service-icon{width:54px;height:54px;border-radius:18px;background:var(--sky);display:grid;place-items:center;color:var(--blue);font-weight:900;margin-bottom:28px}.service-card-accent .service-icon{background:rgba(255,255,255,.14);color:#fff}.service-card h3{font-size:22px;margin:0 0 12px}.service-card p{color:var(--muted);margin:0 0 24px}.service-card-accent p{color:rgba(255,255,255,.78)}.service-card a{font-weight:900;color:var(--blue)}.service-card-accent a{color:#fff}.reveal{opacity:0;transform:translateY(24px);transition:.7s}.reveal.is-visible{opacity:1;transform:none}
.feature{background:#fff}.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}.feature-image{min-height:520px;border-radius:34px;background:url('https://hakoseki.jp/images/02.jpg') center/cover no-repeat;box-shadow:var(--shadow)}.feature-content p{color:#445066}.check-list{list-style:none;padding:0;margin:24px 0}.check-list li{padding:10px 0 10px 34px;position:relative}.check-list li:before{content:'✓';position:absolute;left:0;top:10px;width:22px;height:22px;border-radius:50%;background:var(--sky);color:var(--blue);display:grid;place-items:center;font-size:13px;font-weight:900}.news{background:#f7fafc}.text-link{font-weight:900;color:var(--blue)}.news-list{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:0 12px 45px rgba(7,26,47,.06)}.news-item{display:grid;grid-template-columns:140px 90px 1fr;gap:20px;align-items:center;padding:24px 30px;border-bottom:1px solid var(--line)}.news-item:last-child{border-bottom:0}.news-item time{font-weight:900;color:var(--navy)}.news-item span{font-size:12px;font-weight:900;color:var(--red);background:#fff1f0;border-radius:999px;text-align:center;padding:4px 10px}.news-item p{margin:0}.about{background:#fff}.about-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px}.about-copy{color:#445066}.company-table{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:8px 30px;box-shadow:0 12px 45px rgba(7,26,47,.06)}.company-table dl{display:grid;grid-template-columns:160px 1fr;gap:20px;margin:0;padding:20px 0;border-bottom:1px solid var(--line)}.company-table dl:last-child{border-bottom:0}.company-table dt{font-weight:900;color:var(--navy)}.company-table dd{margin:0;color:#445066}.access{background:linear-gradient(135deg,var(--navy),#0f4a7c);color:#fff}.access-card{display:flex;justify-content:space-between;align-items:center;gap:30px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:34px;padding:44px}.access .section-kicker{color:#9bd3ff}.muted{color:rgba(255,255,255,.72)}.cta{padding:90px 0;background:linear-gradient(135deg,var(--red),#ff8a00);color:#fff;text-align:center}.cta .section-kicker{color:#fff}.cta h2{margin-bottom:10px}.cta-actions{display:flex;justify-content:center;gap:16px;align-items:center;flex-wrap:wrap;margin-top:28px}.cta-tel{font-size:34px;font-weight:900;letter-spacing:.03em}.site-footer{background:#061220;color:#fff;padding:34px 0}.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:20px}.footer-brand img{width:190px;height:auto;background:#fff;border-radius:999px;padding:7px 12px;margin-bottom:8px}.footer-inner p{margin:0;color:rgba(255,255,255,.55)}.footer-inner small{color:rgba(255,255,255,.55)}
@media(max-width:960px){.global-nav,.header-actions .tel,.header-actions .btn{display:none}.menu-btn{display:block}.mobile-nav{position:fixed;top:72px;left:20px;right:20px;z-index:49;background:#fff;border-radius:20px;box-shadow:var(--shadow);padding:16px;transform:translateY(-18px);opacity:0;visibility:hidden;transition:.25s}.mobile-nav.is-open{display:grid;opacity:1;visibility:visible;transform:none}.mobile-nav a{padding:14px;font-weight:900;border-bottom:1px solid var(--line)}.mobile-nav a:last-child{border-bottom:0}.service-grid{grid-template-columns:repeat(2,1fr)}.intro-grid,.feature-grid,.about-grid{grid-template-columns:1fr}.hero-card{left:20px;right:20px;bottom:30px}.hero{min-height:820px}.row-head{display:block}.news-item{grid-template-columns:1fr;gap:8px}.company-table dl{grid-template-columns:1fr;gap:4px}.access-card{display:block}.footer-inner{display:block}.feature-image{min-height:340px}}@media(max-width:600px){.container{width:min(100% - 28px,1120px)}.section{padding:70px 0}.brand-logo{width:165px}.hero h1{font-size:38px}.lead{font-size:16px}.service-grid{grid-template-columns:1fr}.hero-buttons .btn{width:100%}.cta-tel{font-size:28px}.access-card{padding:28px}.company-table{padding:4px 20px}}