:root{
  --navy:#1b3a5b; --navy-d:#13283f; --accent:#c8a45c; --accent-d:#b08e44;
  --ink:#1f2937; --sub:#5b6573; --line:#e5e7eb; --bg:#f7f8fa; --white:#fff;
  --maxw:1080px; --header-gap:clamp(6px,.8vw,8px); --header-offset:118px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-offset)}
body{
  font-family:"Noto Sans JP","Hiragino Sans","Yu Gothic",sans-serif;
  color:var(--ink); background:var(--bg); line-height:1.8; font-size:16px;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy);text-decoration:none}
a:hover{text-decoration:underline}
.lead a,.panel p a,.info td a,.section p a{text-decoration:underline}
a,button{touch-action:manipulation}
a:focus-visible,button:focus-visible{outline:3px solid rgba(200,164,92,.62);outline-offset:3px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:20px;top:10px;z-index:100;transform:translateY(-140%);background:var(--navy);color:#fff;padding:10px 14px;border-radius:8px;font-weight:700}
.skip-link:focus-visible{transform:translateY(0);text-decoration:none}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);box-shadow:0 8px 24px rgba(19,40,63,.06);backdrop-filter:saturate(180%) blur(6px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:58px;max-width:var(--maxw);margin:0 auto;padding:6px 20px}
.brand{display:flex;align-items:center;gap:10px;min-height:44px;min-width:0}
.brand img{height:40px;width:40px;object-fit:contain;flex:0 0 auto}
.brand .name{font-weight:700;color:var(--navy);font-size:15px;line-height:1.3}
.brand .name small{display:block;color:var(--sub);font-size:11px;font-weight:400}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{display:flex;align-items:center;min-height:44px;padding:8px 10px;border-radius:8px;color:var(--ink);font-size:14px;font-weight:500;white-space:nowrap}
.nav a:hover{background:#eef2f7;text-decoration:none}
.nav a.current{color:var(--navy);font-weight:700;border-bottom:2px solid var(--accent);border-radius:0}
.nav-toggle{display:none;min-height:44px;border:1px solid var(--line);background:#fff;border-radius:8px;padding:8px 12px;font-size:14px;cursor:pointer}
.site-header + .hero,.site-header + .page-title{margin-top:var(--header-gap)}

/* hero */
.hero{position:relative;color:#fff;text-align:center;padding:clamp(58px,6vw,78px) 20px;background:linear-gradient(rgba(19,40,63,.72),rgba(19,40,63,.72)) center/cover no-repeat}
.hero h1{font-size:30px;font-weight:700;letter-spacing:.02em;line-height:1.5;text-shadow:0 2px 12px rgba(0,0,0,.3);text-wrap:balance}
.hero p{margin-top:14px;font-size:16px;opacity:.95}
.hero .cta{display:inline-flex;gap:12px;margin-top:26px;flex-wrap:wrap;justify-content:center}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:12px 24px;border-radius:999px;font-weight:700;font-size:15px;text-align:center}
.btn-accent{background:var(--accent);color:#1c1c1c}
.btn-accent:hover{background:var(--accent-d);text-decoration:none}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.6)}
.btn-ghost:hover{background:rgba(255,255,255,.2);text-decoration:none}

/* page title */
.page-title{background:var(--navy);color:#fff;text-align:center;padding:clamp(34px,4vw,44px) 20px}
.page-title h1{font-size:26px;font-weight:700;text-wrap:balance}
.page-title p{margin-top:6px;opacity:.85;font-size:14px}

/* sections */
main{padding:clamp(32px,3.5vw,42px) 0}
main.wrap{padding-top:clamp(32px,3.5vw,42px);padding-bottom:clamp(42px,5vw,58px)}
.section{margin-bottom:clamp(38px,3.5vw,48px);scroll-margin-top:var(--header-offset)}
.section:last-child{margin-bottom:0}
.section-head{text-align:center;margin-bottom:32px}
.section-head h2{font-size:24px;color:var(--navy);font-weight:700;display:inline-block;padding-bottom:10px;border-bottom:3px solid var(--accent);text-wrap:balance}
.section-head p{margin-top:12px;color:var(--sub);font-size:14px}
.lead{font-size:16px;color:var(--ink);max-width:760px;margin:0 auto 24px;text-align:left}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);box-shadow:0 12px 28px -14px rgba(0,0,0,.22)}
.card img{width:100%;height:200px;object-fit:cover}
.card .body{padding:16px}
.card h3{font-size:16px;color:var(--navy);margin-bottom:8px}
.card p{font-size:13.5px;color:var(--sub);overflow-wrap:anywhere}

/* feature box */
.panel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:clamp(24px,4vw,34px)}
.panel + .panel{margin-top:28px}
.panel h2,.panel h3{color:var(--navy);font-size:18px;margin-bottom:12px;border-left:4px solid var(--accent);padding-left:12px}
.panel p + h2,.panel p + h3{margin-top:24px}
.panel .lead{max-width:none}
.badge{display:inline-block;background:#fdf6e7;color:var(--accent-d);border:1px solid #ecd9a8;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;margin-bottom:14px}

/* info table */
.info{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.info th,.info td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);font-size:14.5px;vertical-align:top}
.info th{background:#f1f4f8;color:var(--navy);width:34%;font-weight:700;white-space:nowrap}
.info tr:last-child th,.info tr:last-child td{border-bottom:0}

/* report grid */
.reports{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.report{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.report img{width:100%;height:260px;object-fit:contain;display:block;border-bottom:1px solid var(--line);background:#f1f4f8}
.report .report-body{padding:16px 18px}
.report h3{color:var(--navy);font-size:15px;margin-bottom:6px}
.report p{font-size:13.5px;color:var(--sub);overflow-wrap:anywhere}

/* contact */
.contact-box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;max-width:620px;margin:0 auto;text-align:center}
.contact-box .big{font-size:26px;font-weight:700;color:var(--navy);margin:6px 0}
.contact-box .big a{overflow-wrap:anywhere}
.muted{color:var(--sub);font-size:13px}

/* gallery row */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}
.gallery-item{margin:0}
.gallery-item img{width:100%;height:180px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
.gallery-item figcaption{font-size:12.5px;color:var(--sub);margin-top:8px;text-align:center}

/* footer */
.site-footer{background:var(--navy-d);color:#cdd6e0;padding:36px 20px;margin-top:40px}
.footer-inner{max-width:var(--maxw);margin:0 auto;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px}
.site-footer .name{color:#fff;font-weight:700;font-size:15px;margin-bottom:6px}
.site-footer a{color:#cdd6e0}
.copyright{text-align:center;color:#8aa0b6;font-size:12px;margin-top:24px}

@media(max-width:820px){
  :root{--header-offset:128px}
  .cards{grid-template-columns:1fr 1fr}
  .reports{grid-template-columns:1fr}
  .report img{height:240px}
  .nav{display:none;width:100%;flex-direction:column;margin-top:8px}
  .nav.open{display:flex}
  .nav a{padding:12px;border-radius:8px;border-bottom:1px solid var(--line)}
  .nav a.current{border-bottom:1px solid var(--line)}
  .header-inner{flex-wrap:wrap}
  .nav-toggle{display:block}
  .hero h1{font-size:23px}
}
@media(max-width:520px){
  :root{--header-gap:6px;--header-offset:132px}
  .wrap{padding:0 16px}
  .header-inner{gap:10px;padding:6px 16px}
  .brand img{height:38px;width:38px}
  .brand .name{font-size:14px}
  .brand .name small{font-size:10.5px}
  .site-header + .hero,.site-header + .page-title{margin-top:var(--header-gap)}
  .hero{padding:52px 18px}
  .page-title{padding:34px 18px}
  .page-title h1{font-size:23px}
  main{padding:34px 0}
  main.wrap{padding-top:34px;padding-bottom:44px}
  .section{margin-bottom:36px}
  .section-head h2{font-size:22px}
  .cards{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr 1fr}
  .panel{border-radius:12px}
  .info,.info tbody,.info tr,.info th,.info td{display:block;width:100%}
  .info th{white-space:normal;border-bottom:0;padding-bottom:6px}
  .info td{padding-top:6px}
  .info tr:not(:last-child) td{border-bottom:1px solid var(--line)}
  .contact-box{padding:24px 18px}
  .contact-box .big{font-size:22px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .card{transition:none}
  .card:hover{transform:none}
}