:root{
  --c-navy:#0E2A47;
  --c-graphite:#2B2F36;
  --c-gold:#C8892E;
  --c-ivory:#F7F4EE;
  --c-white:#FFFFFF;
  --c-border:#DAD3C4;
  --c-muted:#6B6F76;
  --c-line:#E6E0D2;
  --c-dark:#14202F;
  --font-head:'Noto Sans JP', system-ui, sans-serif;
  --font-body:'IBM Plex Sans', 'Noto Sans JP', system-ui, sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{width:100%}
body{
  font-family:var(--font-body);
  color:var(--c-graphite);
  background:var(--c-ivory);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--c-navy);text-decoration:none}
a:hover{color:var(--c-gold)}
img{max-width:100%;display:block;height:auto}
h1,h2,h3,h4,h5{font-family:var(--font-head);color:var(--c-navy);font-weight:700;line-height:1.35}
h1{font-size:2.2rem;letter-spacing:.02em}
h2{font-size:1.55rem;margin-bottom:1rem}
h3{font-size:1.2rem;margin-bottom:.6rem}
p{margin-bottom:1rem}

.container{max-width:1160px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-tight{padding:48px 0}
.eyebrow{
  display:inline-block;
  font-size:.78rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--c-gold);
  font-weight:600;
  margin-bottom:12px;
}
.section-title{
  font-size:1.9rem;
  border-bottom:1px solid var(--c-line);
  padding-bottom:14px;
  margin-bottom:32px;
}
.lead{font-size:1.05rem;color:var(--c-graphite);max-width:780px}

.site-header{
  background:var(--c-white);
  border-bottom:1px solid var(--c-line);
  position:sticky;top:0;z-index:90;
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 24px;max-width:1280px;margin:0 auto;
}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-head);font-weight:700;color:var(--c-navy);font-size:1.05rem}
.brand i{color:var(--c-gold);font-size:1.3rem}
.brand span.small{display:block;font-size:.7rem;color:var(--c-muted);font-weight:400;letter-spacing:.05em}

.nav-menu{display:flex;align-items:center;gap:22px;list-style:none}
.nav-menu a{color:var(--c-graphite);font-size:.93rem;font-weight:500}
.nav-menu a:hover{color:var(--c-navy)}
.nav-menu .has-sub{position:relative}
.nav-menu .has-sub>button{
  background:none;border:none;cursor:pointer;
  color:var(--c-graphite);font-size:.93rem;font-weight:500;
  display:flex;align-items:center;gap:6px;font-family:inherit;padding:0;
}
.nav-menu .has-sub>button i{font-size:.8rem}
.submenu{
  position:absolute;top:calc(100% + 10px);left:-12px;
  background:var(--c-white);border:1px solid var(--c-line);
  min-width:300px;padding:10px 0;display:none;list-style:none;
  box-shadow:0 10px 24px rgba(14,42,71,.08);
}
.submenu.open{display:block}
.submenu li a{display:block;padding:9px 18px;font-size:.88rem;color:var(--c-graphite)}
.submenu li a:hover{background:var(--c-ivory);color:var(--c-navy)}
.submenu .divider{height:1px;background:var(--c-line);margin:6px 0}

.btn{
  display:inline-block;padding:11px 22px;font-size:.92rem;font-weight:600;
  border:1px solid var(--c-navy);background:var(--c-navy);color:var(--c-white);
  cursor:pointer;font-family:inherit;transition:background .2s,color .2s;letter-spacing:.02em;
}
.btn:hover{background:var(--c-gold);border-color:var(--c-gold);color:var(--c-white)}
.btn-outline{background:transparent;color:var(--c-navy)}
.btn-outline:hover{background:var(--c-navy);color:var(--c-white)}
.btn-gold{background:var(--c-gold);border-color:var(--c-gold)}
.btn-gold:hover{background:var(--c-navy);border-color:var(--c-navy)}
.btn-ghost{background:transparent;border:1px solid var(--c-border);color:var(--c-graphite)}
.btn-ghost:hover{background:var(--c-ivory);color:var(--c-navy)}

.nav-cta{background:var(--c-gold);border-color:var(--c-gold);padding:9px 18px;font-size:.88rem;color:var(--c-white)}
.nav-cta:hover{background:var(--c-navy);border-color:var(--c-navy)}

.hamburger{display:none;background:none;border:none;cursor:pointer;font-size:1.5rem;color:var(--c-navy)}

.hero{
  position:relative;min-height:560px;display:flex;align-items:center;
  background-size:cover;background-position:center;background-repeat:no-repeat;
  color:var(--c-white);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(14,32,47,.82) 0%,rgba(14,42,71,.72) 60%,rgba(14,32,47,.78) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:900px;padding:80px 24px}
.hero h1{color:var(--c-white);font-size:2.7rem;margin-bottom:18px;line-height:1.3}
.hero .sub{color:rgba(255,255,255,.88);font-size:1.1rem;max-width:720px;margin-bottom:28px}
.hero-toc{
  display:flex;flex-wrap:wrap;gap:14px 28px;align-items:center;
  border-top:1px solid rgba(255,255,255,.25);border-bottom:1px solid rgba(255,255,255,.25);
  padding:14px 0;margin-bottom:28px;
}
.hero-toc span.label{font-size:.78rem;letter-spacing:.22em;color:var(--c-gold);font-weight:600;text-transform:uppercase}
.hero-toc a{color:rgba(255,255,255,.9);font-size:.9rem}
.hero-toc a:hover{color:var(--c-gold)}
.hero-home{background-image:url('../media/hero-home-report.jpg')}
.hero-about{background-image:url('../media/hero-about-desk.jpg');min-height:420px}
.hero-contact{background-image:url('../media/hero-contact-office.jpg');min-height:420px}
.hero-simple{min-height:300px;background:linear-gradient(135deg,var(--c-dark),var(--c-navy));color:var(--c-white);display:flex;align-items:center}
.hero-simple h1{color:var(--c-white);font-size:2rem}
.hero-simple .sub{color:rgba(255,255,255,.85)}

.mission-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.mission-grid img{border:1px solid var(--c-line)}
.mission-points{list-style:none;margin-top:20px}
.mission-points li{padding:10px 0;border-bottom:1px dashed var(--c-line);display:flex;gap:12px;align-items:flex-start}
.mission-points li i{color:var(--c-gold);margin-top:4px}

.numbered-card{
  background:var(--c-white);
  border:1px solid var(--c-line);
  border-left:3px solid var(--c-gold);
  padding:28px 28px 24px 28px;
  display:flex;flex-direction:column;
  position:relative;
}
.numbered-card .num{
  font-family:var(--font-head);font-weight:700;color:var(--c-gold);
  font-size:.85rem;letter-spacing:.18em;margin-bottom:10px;
}
.numbered-card h3{margin-bottom:8px}
.numbered-card hr{border:none;border-top:1px solid var(--c-line);margin:14px 0}
.numbered-card p{color:var(--c-graphite);font-size:.95rem;margin-bottom:14px}
.numbered-card .read-more{color:var(--c-navy);font-weight:600;font-size:.9rem;margin-top:auto}
.numbered-card .read-more i{font-size:.8rem;margin-left:4px}
.numbered-card .cover{
  width:calc(100% + 56px);margin:-28px -28px 18px -28px;
  height:180px;background-size:cover;background-position:center;background-repeat:no-repeat;
}

.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}

.advantages{background:var(--c-white);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.pillar{padding:24px 24px 28px;border-left:3px solid var(--c-gold);background:var(--c-ivory)}
.pillar .num{font-weight:700;color:var(--c-gold);font-family:var(--font-head);letter-spacing:.18em;font-size:.85rem;margin-bottom:10px}
.pillar i{font-size:1.6rem;color:var(--c-navy);margin-bottom:8px;display:block}
.pillar h3{font-size:1.1rem;margin-bottom:8px}
.pillar p{font-size:.92rem;color:var(--c-graphite)}

.glossary{background:var(--c-ivory)}
.glossary-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.glossary-item{background:var(--c-white);border:1px solid var(--c-line);border-left:3px solid var(--c-gold);padding:20px}
.glossary-item dt{font-family:var(--font-head);font-weight:700;color:var(--c-navy);font-size:1rem;margin-bottom:6px;display:flex;gap:8px;align-items:center}
.glossary-item dt i{color:var(--c-gold)}
.glossary-item dd{font-size:.88rem;color:var(--c-graphite)}

.testimonials{background:var(--c-white);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.testimonial{background:var(--c-ivory);border-left:3px solid var(--c-gold);padding:26px 24px 22px}
.testimonial .quote{font-size:.95rem;color:var(--c-graphite);margin-bottom:18px;font-style:italic}
.testimonial .who{display:flex;align-items:center;gap:12px}
.avatar-badge{
  width:42px;height:42px;border-radius:50%;
  background:var(--c-navy);color:var(--c-white);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-head);font-weight:700;font-size:.95rem;
}
.avatar-badge.g2{background:var(--c-gold)}
.avatar-badge.g3{background:var(--c-graphite)}
.testimonial .who div{font-size:.85rem;color:var(--c-muted)}
.testimonial .who div b{color:var(--c-navy);font-weight:700;display:block}
.testimonial-note{margin-top:26px;font-size:.8rem;color:var(--c-muted);text-align:center}

.closing-cta{background:var(--c-navy);color:var(--c-white);padding:64px 0}
.closing-cta h2{color:var(--c-white);margin-bottom:12px}
.closing-cta p{color:rgba(255,255,255,.85);margin-bottom:20px;max-width:720px}
.closing-cta .btn{background:var(--c-gold);border-color:var(--c-gold);color:var(--c-white)}
.closing-cta .btn:hover{background:var(--c-white);color:var(--c-navy);border-color:var(--c-white)}

article.insight{max-width:860px;margin:0 auto;padding:56px 24px 40px}
article.insight .byline{color:var(--c-muted);font-size:.88rem;border-bottom:1px solid var(--c-line);padding-bottom:14px;margin-bottom:26px}
article.insight .byline i{color:var(--c-gold);margin-right:6px}
article.insight h2{margin-top:36px;margin-bottom:12px;padding-top:12px;border-top:1px solid var(--c-line)}
article.insight h2:first-of-type{border-top:none;padding-top:0}
article.insight p{font-size:1rem;color:var(--c-graphite)}
article.insight .article-hero{height:340px;background-size:cover;background-position:center;margin-bottom:28px;border:1px solid var(--c-line)}
.prevnext{display:flex;justify-content:space-between;gap:14px;margin-top:48px;padding-top:20px;border-top:1px solid var(--c-line)}
.prevnext a{color:var(--c-navy);font-weight:600;font-size:.92rem;max-width:45%}
.prevnext a.next{text-align:right}
.prevnext a i{color:var(--c-gold)}

.topic-list{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.topic-item{background:var(--c-white);border:1px solid var(--c-line);border-left:3px solid var(--c-gold);padding:26px;display:flex;flex-direction:column}
.topic-item .num{font-family:var(--font-head);font-weight:700;color:var(--c-gold);font-size:.85rem;letter-spacing:.18em;margin-bottom:8px}
.topic-item h3{margin-bottom:10px}
.topic-item .meta{font-size:.82rem;color:var(--c-muted);margin-bottom:10px}
.topic-item p{font-size:.95rem;color:var(--c-graphite);margin-bottom:14px}
.topic-item .read-more{color:var(--c-navy);font-weight:600;font-size:.9rem;margin-top:auto}

.about-block{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.about-block img{border:1px solid var(--c-line)}
.about-block ul{list-style:none;margin-top:14px}
.about-block ul li{padding:8px 0;border-bottom:1px dashed var(--c-line);display:flex;gap:10px}
.about-block ul li i{color:var(--c-gold);margin-top:4px}

.notice-box{
  background:var(--c-white);border:1px solid var(--c-line);border-left:3px solid var(--c-gold);
  padding:22px 24px;margin-top:26px;
}
.notice-box h3{font-size:1.05rem;margin-bottom:8px}
.notice-box p{font-size:.92rem;margin-bottom:0;color:var(--c-graphite)}

.contact-cols{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:start}
.contact-info{background:var(--c-white);border:1px solid var(--c-line);border-left:3px solid var(--c-gold);padding:28px}
.contact-info h3{margin-bottom:14px}
.contact-info ul{list-style:none}
.contact-info ul li{padding:12px 0;border-bottom:1px dashed var(--c-line);display:flex;gap:12px;align-items:flex-start}
.contact-info ul li i{color:var(--c-gold);font-size:1.15rem;margin-top:3px}
.contact-info ul li:last-child{border-bottom:none}
.contact-info span.label{display:block;font-size:.78rem;color:var(--c-muted);text-transform:uppercase;letter-spacing:.12em;margin-bottom:2px}

.contact-form{background:var(--c-white);border:1px solid var(--c-line);padding:30px 28px}
.contact-form h3{margin-bottom:18px}
.field{margin-bottom:16px}
.field label{display:block;font-size:.85rem;color:var(--c-graphite);margin-bottom:6px;font-weight:600}
.field input,.field textarea{
  width:100%;padding:11px 13px;border:1px solid var(--c-border);
  font-family:inherit;font-size:.94rem;background:var(--c-ivory);color:var(--c-graphite);
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--c-navy);background:var(--c-white)}
.field textarea{min-height:120px;resize:vertical}
.field-check{display:flex;gap:10px;align-items:flex-start;font-size:.85rem;color:var(--c-graphite);margin-bottom:16px}
.field-check input{margin-top:4px}

.map-wrap{margin-top:48px}
.map-wrap iframe{width:100%;height:380px;border:1px solid var(--c-line)}
.map-wrap .open-map{display:inline-block;margin-top:14px;font-size:.9rem;color:var(--c-navy);font-weight:600}
.map-wrap .open-map i{color:var(--c-gold);margin-right:4px}

.policy-body{max-width:860px;margin:0 auto;padding:56px 24px}
.policy-body h2{margin-top:28px;padding-top:18px;border-top:1px solid var(--c-line)}
.policy-body h2:first-of-type{border-top:none;padding-top:0}
.policy-body ul{padding-left:20px;margin-bottom:16px}
.policy-body ul li{margin-bottom:6px}

.site-footer{background:var(--c-dark);color:rgba(255,255,255,.8);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.2fr .9fr 1.2fr;gap:44px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-col h4{color:var(--c-white);font-size:1rem;margin-bottom:14px;letter-spacing:.05em;border-left:3px solid var(--c-gold);padding-left:10px}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:8px;font-size:.9rem}
.footer-col a{color:rgba(255,255,255,.75)}
.footer-col a:hover{color:var(--c-gold)}
.footer-col p{font-size:.9rem;color:rgba(255,255,255,.75);margin-bottom:8px}
.footer-col p i{color:var(--c-gold);margin-right:6px}
.footer-bottom{text-align:center;padding:20px 0;font-size:.82rem;color:rgba(255,255,255,.55)}

.cookie-banner{
  position:fixed;left:0;right:0;bottom:0;z-index:200;
  background:var(--c-dark);color:var(--c-white);
  border-top:2px solid var(--c-gold);
  padding:18px 24px;display:none;
}
.cookie-banner.visible{display:block}
.cookie-inner{max-width:1160px;margin:0 auto;display:flex;gap:20px;align-items:center;flex-wrap:wrap;justify-content:space-between}
.cookie-inner p{font-size:.88rem;color:rgba(255,255,255,.85);margin:0;flex:1;min-width:260px}
.cookie-buttons{display:flex;gap:10px}
.cookie-buttons button{
  padding:9px 20px;font-size:.88rem;font-weight:600;
  border:1px solid var(--c-gold);cursor:pointer;font-family:inherit;
  background:var(--c-gold);color:var(--c-white);
}
.cookie-buttons button.reject{background:transparent;color:var(--c-white)}
.cookie-buttons button:hover{background:var(--c-white);color:var(--c-navy);border-color:var(--c-white)}

.modal-mask{
  position:fixed;inset:0;background:rgba(14,32,47,.78);z-index:300;
  display:none;align-items:center;justify-content:center;padding:24px;
}
.modal-mask.visible{display:flex}
.modal-box{
  background:var(--c-white);max-width:480px;width:100%;padding:32px;
  border-top:4px solid var(--c-gold);
}
.modal-box h3{margin-bottom:10px}
.modal-box p{font-size:.93rem;color:var(--c-graphite)}
.modal-box .close-hint{font-size:.78rem;color:var(--c-muted);margin-top:16px;margin-bottom:0}

@media (max-width:880px){
  .nav-menu{display:none;position:absolute;top:100%;left:0;right:0;background:var(--c-white);border-top:1px solid var(--c-line);flex-direction:column;padding:14px 24px;gap:12px;align-items:stretch}
  .nav-menu.open{display:flex}
  .submenu{position:static;box-shadow:none;border:none;padding-left:14px;min-width:0}
  .hamburger{display:block}
  .hero{min-height:420px}
  .hero h1{font-size:2rem}
  .mission-grid,.about-block,.contact-cols{grid-template-columns:1fr;gap:28px}
  .grid-4,.grid-3,.grid-2,.topic-list,.glossary-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .map-wrap iframe{height:280px}
  article.insight .article-hero{height:220px}
  .section{padding:52px 0}
}