@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&family=Zen+Kaku+Gothic+New:wght@500;700;900&display=swap');

:root{
  --blue-900:#0b2f4d;
  --blue-800:#123c60;
  --blue-700:#1a5178;
  --blue-600:#2170a3;
  --blue-500:#2f8fc9;
  --blue-100:#eaf4fb;
  --blue-50:#f5faff;
  --ink:#1c2733;
  --ink-soft:#4a5a6a;
  --line:#dfe8ef;
  --paper:#ffffff;
  --max:1180px;
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"Noto Sans JP","Zen Kaku Gothic New",-apple-system,"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:var(--max);margin:0 auto;padding:16px 24px;
  display:flex;align-items:center;justify-content:space-between;
}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:22px;letter-spacing:.02em;color:var(--blue-900);}
.logo .mark{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,var(--blue-600),var(--blue-900));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:15px;font-weight:900;
}
.logo .sub{font-size:10.5px;font-weight:500;color:var(--ink-soft);letter-spacing:.12em;display:block;margin-top:1px;}
nav.main-nav ul{display:flex;gap:34px;}
nav.main-nav a{font-size:14.5px;font-weight:500;color:var(--ink);position:relative;padding:6px 0;}
nav.main-nav a.active,nav.main-nav a:hover{color:var(--blue-700);}
nav.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--blue-600);border-radius:2px;}
.nav-cta{
  background:var(--blue-800);color:#fff;padding:10px 22px;border-radius:999px;
  font-size:13.5px;font-weight:700;white-space:nowrap;
}
.nav-cta:hover{background:var(--blue-900);}
.burger{display:none;}
.nav-toggle{display:none;}
.mobile-nav{display:none;}

@media (max-width:860px){
  nav.main-nav{display:none;}
  .header-inner{padding:14px 20px;}
  .nav-cta{display:none;}
  .burger{
    display:flex;align-items:center;justify-content:center;
    width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
    background:#fff;cursor:pointer;flex-direction:column;gap:5px;
  }
  .burger span{display:block;width:18px;height:2px;background:var(--blue-900);border-radius:2px;}
  .nav-toggle:checked ~ .mobile-nav{display:block;}
  .nav-toggle:checked ~ .header-inner .burger span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle:checked ~ .header-inner .burger span:nth-child(2){opacity:0;}
  .nav-toggle:checked ~ .header-inner .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  .mobile-nav{
    border-top:1px solid var(--line);background:#fff;padding:10px 20px 18px;
  }
  .mobile-nav a{
    display:block;padding:13px 4px;font-size:15px;font-weight:600;color:var(--ink);
    border-bottom:1px solid var(--line);
  }
  .mobile-nav a.active{color:var(--blue-700);}
  .mobile-nav .mnav-cta{
    display:block;text-align:center;margin-top:16px;background:var(--blue-800);color:#fff;
    padding:13px;border-radius:999px;font-weight:700;font-size:14px;border-bottom:none;
  }
}

/* ---------- hero banner ---------- */
.hero-banner{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,var(--blue-900) 0%,var(--blue-700) 55%,var(--blue-600) 100%);
  color:#fff;
}
.hero-banner::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(600px 300px at 85% 10%, rgba(255,255,255,.14), transparent 60%),
    radial-gradient(500px 260px at 10% 90%, rgba(255,255,255,.10), transparent 60%);
}
.hero-inner{
  position:relative;max-width:var(--max);margin:0 auto;padding:86px 24px 96px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  padding:7px 16px;border-radius:999px;margin-bottom:22px;
}
.hero-inner h1{
  font-size:42px;font-weight:900;line-height:1.5;letter-spacing:.01em;margin-bottom:22px;
}
.hero-inner h1 em{
  font-style:normal;color:#bfe2ff;
  background:linear-gradient(180deg,transparent 62%,rgba(191,226,255,.35) 62%);
}
.hero-lead{font-size:15.5px;color:#dceaf6;max-width:46ch;margin-bottom:34px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-weight:700;font-size:14.5px;
  transition:transform .15s ease;
}
.btn:hover{transform:translateY(-2px);}
.btn-primary{background:#fff;color:var(--blue-900);}
.btn-ghost{border:1px solid rgba(255,255,255,.55);color:#fff;}
.hero-figure{position:relative;}
.hero-figure img{
  border-radius:20px;box-shadow:0 30px 60px -20px rgba(4,20,36,.55);
  aspect-ratio:4/3;object-fit:cover;
}
.hero-stat{
  position:absolute;left:-18px;bottom:-22px;background:#fff;color:var(--ink);
  border-radius:14px;padding:16px 20px;box-shadow:0 18px 40px -14px rgba(4,20,36,.35);
  display:flex;gap:14px;align-items:center;
}
.hero-stat .num{font-size:24px;font-weight:900;color:var(--blue-800);line-height:1;}
.hero-stat .lbl{font-size:11.5px;color:var(--ink-soft);margin-top:4px;}

@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr;padding:56px 20px 64px;}
  .hero-inner h1{font-size:30px;}
  .hero-figure{order:-1;}
}

/* ---------- page banner (sub pages) ---------- */
.page-banner{
  background:linear-gradient(120deg,var(--blue-900),var(--blue-700));
  color:#fff;padding:58px 24px 70px;
}
.page-banner .wrap{max-width:var(--max);}
.page-banner .crumb{font-size:12.5px;color:#bcd8ee;margin-bottom:14px;letter-spacing:.04em;}
.page-banner h1{font-size:32px;font-weight:900;margin-bottom:12px;}
.page-banner p{color:#dceaf6;font-size:14.5px;max-width:56ch;}

/* ---------- section ---------- */
section{padding:88px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:44px;flex-wrap:wrap;}
.section-tag{font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--blue-600);text-transform:uppercase;margin-bottom:10px;display:block;}
.section-head h2{font-size:28px;font-weight:900;color:var(--blue-900);}
.section-more{font-size:13.5px;font-weight:700;color:var(--blue-700);border-bottom:1px solid var(--blue-500);padding-bottom:2px;white-space:nowrap;}
.lead-text{color:var(--ink-soft);font-size:15px;max-width:64ch;}

.bg-soft{background:var(--blue-50);}

/* ---------- article cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:32px;}
@media (max-width:920px){.grid-3{grid-template-columns:1fr;}.grid-2{grid-template-columns:1fr;}}

.card{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:0 22px 40px -22px rgba(11,47,77,.28);}
.card .thumb{aspect-ratio:16/10;overflow:hidden;position:relative;}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .thumb img{transform:scale(1.06);}
.card .cat{
  position:absolute;top:14px;left:14px;background:rgba(11,47,77,.85);color:#fff;
  font-size:11px;font-weight:700;padding:5px 12px;border-radius:999px;letter-spacing:.04em;
}
.card .body{padding:22px 22px 24px;}
.card .meta{font-size:12px;color:var(--ink-soft);margin-bottom:10px;display:flex;gap:10px;align-items:center;}
.card h3{font-size:17px;font-weight:700;line-height:1.6;margin-bottom:10px;color:var(--ink);}
.card p{font-size:13.5px;color:var(--ink-soft);}
.card .byline{display:flex;align-items:center;gap:8px;margin-top:16px;}
.card .byline img{width:26px;height:26px;border-radius:50%;object-fit:cover;}
.card .byline span{font-size:12px;color:var(--ink-soft);font-weight:500;}

/* featured big card */
.feature{
  display:grid;grid-template-columns:1.1fr 1fr;gap:0;border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff;
}
.feature .thumb{position:relative;min-height:320px;}
.feature .thumb img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.feature .body{padding:40px 42px;display:flex;flex-direction:column;justify-content:center;}
.feature h3{font-size:24px;font-weight:900;line-height:1.6;margin:12px 0 16px;color:var(--blue-900);}
.feature p{color:var(--ink-soft);font-size:14.5px;margin-bottom:22px;}
@media (max-width:860px){.feature{grid-template-columns:1fr;}.feature .thumb{min-height:220px;}.feature .body{padding:28px 24px;}}

/* ---------- category chips ---------- */
.chip-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:40px;}
.chip{
  padding:10px 20px;border-radius:999px;border:1px solid var(--line);font-size:13.5px;font-weight:600;color:var(--ink-soft);
}
.chip.is-active{background:var(--blue-800);border-color:var(--blue-800);color:#fff;}

/* ---------- stats / trust strip ---------- */
.trust-strip{background:var(--blue-900);color:#fff;padding:44px 0;}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center;}
.trust-grid .num{font-size:30px;font-weight:900;color:#bfe2ff;}
.trust-grid .lbl{font-size:12px;color:#a9c6dd;margin-top:6px;letter-spacing:.03em;}
@media (max-width:760px){.trust-grid{grid-template-columns:repeat(2,1fr);row-gap:32px;}}

/* ---------- newsletter cta ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--blue-700),var(--blue-900));
  border-radius:24px;padding:56px 48px;color:#fff;
  display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center;
}
.cta-band h2{font-size:24px;font-weight:900;margin-bottom:10px;}
.cta-band p{color:#dceaf6;font-size:14px;}
.cta-form{display:flex;gap:10px;}
.cta-form input{
  flex:1;padding:14px 18px;border-radius:999px;border:none;font-size:14px;font-family:inherit;
}
.cta-form button{
  background:#fff;color:var(--blue-900);border:none;padding:14px 26px;border-radius:999px;font-weight:700;font-size:14px;cursor:pointer;
}
@media (max-width:820px){.cta-band{grid-template-columns:1fr;padding:36px 26px;}}

/* ---------- footer ---------- */
footer{background:var(--blue-900);color:#a9c6dd;padding:64px 0 30px;margin-top:40px;}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px;margin-bottom:48px;}
.footer-grid h4{color:#fff;font-size:13.5px;font-weight:700;margin-bottom:18px;letter-spacing:.04em;}
.footer-grid li{margin-bottom:11px;font-size:13.5px;}
.footer-grid li a:hover{color:#fff;}
.footer-brand .logo{color:#fff;margin-bottom:14px;}
.footer-brand p{font-size:13px;line-height:1.9;max-width:32ch;color:#8fb2cc;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:24px;display:flex;justify-content:space-between;font-size:12px;color:#7ea3c0;flex-wrap:wrap;gap:10px;}
@media (max-width:820px){.footer-grid{grid-template-columns:1fr 1fr;}}

/* ---------- about page ---------- */
.member-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px;text-align:center;}
.member-card img{width:88px;height:88px;border-radius:50%;object-fit:cover;margin:0 auto 18px;}
.member-card h3{font-size:16.5px;font-weight:700;margin-bottom:4px;}
.member-card .role{font-size:12px;color:var(--blue-600);font-weight:700;margin-bottom:14px;letter-spacing:.03em;}
.member-card p{font-size:13px;color:var(--ink-soft);}

.value-card{padding:30px 26px;border-radius:16px;background:var(--blue-50);border:1px solid var(--blue-100);}
.value-card .idx{font-size:12px;font-weight:900;color:var(--blue-500);letter-spacing:.1em;margin-bottom:14px;}
.value-card h3{font-size:17px;font-weight:700;color:var(--blue-900);margin-bottom:10px;}
.value-card p{font-size:13.5px;color:var(--ink-soft);}

/* ---------- article detail ---------- */
.article-head{max-width:760px;margin:0 auto;text-align:center;color:#fff;}
.article-head .cat-tag{
  display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);
  font-size:12px;font-weight:700;padding:6px 16px;border-radius:999px;margin-bottom:18px;letter-spacing:.04em;
}
.article-head h1{font-size:30px;font-weight:900;line-height:1.6;margin-bottom:18px;}
.article-head .sub{color:#dceaf6;font-size:14.5px;margin-bottom:26px;}
.article-byline{display:inline-flex;align-items:center;gap:12px;}
.article-byline img{width:40px;height:40px;border-radius:50%;object-fit:cover;border:2px solid rgba(255,255,255,.5);}
.article-byline .name{font-size:13.5px;font-weight:700;}
.article-byline .date{font-size:11.5px;color:#bcd8ee;}

.article-cover{max-width:900px;margin:-46px auto 0;padding:0 24px;}
.article-cover img{width:100%;aspect-ratio:16/8;object-fit:cover;border-radius:18px;box-shadow:0 30px 60px -24px rgba(4,20,36,.4);}

.article-body{max-width:720px;margin:0 auto;padding:60px 24px 0;}
.article-body h2{font-size:21px;font-weight:900;color:var(--blue-900);margin:44px 0 18px;}
.article-body p{font-size:15.5px;color:#33414e;margin-bottom:20px;}
.article-body ul{margin:0 0 24px 0;}
.article-body ul li{
  font-size:15px;color:#33414e;padding:12px 0 12px 30px;border-bottom:1px dashed var(--line);position:relative;
}
.article-body ul li::before{content:"";position:absolute;left:0;top:19px;width:8px;height:8px;border-radius:50%;background:var(--blue-500);}
.pull-quote{
  border-left:4px solid var(--blue-500);background:var(--blue-50);padding:24px 28px;border-radius:0 12px 12px 0;
  font-size:16px;font-weight:700;color:var(--blue-900);margin:32px 0;line-height:1.9;
}
.author-box{
  max-width:720px;margin:56px auto 0;padding:30px;border:1px solid var(--line);border-radius:18px;
  display:flex;gap:20px;background:var(--blue-50);
}
.author-box img{width:64px;height:64px;border-radius:50%;object-fit:cover;flex-shrink:0;}
.author-box h4{font-size:15px;font-weight:700;margin-bottom:6px;}
.author-box p{font-size:13px;color:var(--ink-soft);}
.tag-row{max-width:720px;margin:36px auto 0;padding:0 24px;display:flex;gap:10px;flex-wrap:wrap;}
.tag-row span{font-size:12.5px;color:var(--blue-700);background:var(--blue-100);padding:7px 15px;border-radius:999px;font-weight:600;}

/* ---------- contact page ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;}
.contact-info-card{background:var(--blue-900);color:#fff;border-radius:20px;padding:40px;height:fit-content;}
.contact-info-card h3{font-size:19px;font-weight:900;margin-bottom:16px;}
.contact-info-card p{font-size:13.5px;color:#cfe4f4;margin-bottom:28px;}
.info-row{display:flex;gap:14px;padding:16px 0;border-top:1px solid rgba(255,255,255,.14);}
.info-row .ico{
  width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:16px;
}
.info-row .lbl{font-size:11.5px;color:#9dc0da;margin-bottom:3px;}
.info-row .val{font-size:13.5px;font-weight:600;}

.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:44px;}
.form-row{margin-bottom:22px;}
.form-row label{display:block;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:8px;}
.form-row label .req{color:#e0574a;margin-left:4px;font-size:11px;}
.form-row input,.form-row select,.form-row textarea{
  width:100%;padding:13px 16px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit;color:var(--ink);background:var(--blue-50);
}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{outline:2px solid var(--blue-500);outline-offset:1px;}
.form-2col{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.submit-btn{
  width:100%;padding:16px;border:none;border-radius:12px;background:var(--blue-800);color:#fff;font-weight:700;font-size:15px;cursor:pointer;
}
.submit-btn:hover{background:var(--blue-900);}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr;}.form-2col{grid-template-columns:1fr;}}

/* faq */
.faq-item{border-bottom:1px solid var(--line);padding:22px 0;}
.faq-item h4{font-size:15px;font-weight:700;margin-bottom:8px;color:var(--blue-900);}
.faq-item p{font-size:13.5px;color:var(--ink-soft);}

/* utility */
.center{text-align:center;}
.mt-56{margin-top:56px;}