:root {
  --navy-950: #030a14; --navy-900: #061020; --navy-800: #0a1628;
  --gold-500: #c9a961; --gold-700: #8a6f3a; --ivory: #f5f1e8;
  --serif: 'Noto Serif JP', serif; --sans: 'Noto Sans JP', sans-serif; --en: 'Cormorant Garamond', serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { background: var(--navy-900); color: #fff; font-family: var(--sans); font-weight: 300; line-height: 1.9; letter-spacing: 0.04em; }
a { color: inherit; text-decoration: none; transition: color .3s; }
.nav { position: sticky; top: 0; z-index: 50; display: flex; justify-content: space-between; align-items: center; padding: 16px 32px; background: rgba(6,16,32,0.94); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(201,169,97,0.15); }
.nav-logo { font-family: var(--serif); font-size: 18px; letter-spacing: 0.25em; font-weight: 500; }
.nav-logo .mark { color: var(--gold-500); }
.nav-logo .sub { display: block; font-size: 9px; letter-spacing: 0.35em; color: var(--gold-500); font-family: var(--en); font-style: italic; margin-top: 2px; }
.nav-links { display: flex; gap: 24px; align-items: center; font-size: 13px; letter-spacing: 0.15em; }
.nav-links a:hover { color: var(--gold-500); }
.nav-cta { padding: 10px 22px; border: 1px solid var(--gold-500); color: var(--gold-500); font-size: 12px; letter-spacing: 0.2em; }
.nav-cta:hover { background: var(--gold-500); color: var(--navy-900); }
.hero { padding: 90px 32px 70px; text-align: center; background: linear-gradient(180deg, var(--navy-800), var(--navy-900)); }
.eyebrow { font-family: var(--en); font-style: italic; font-size: 13px; letter-spacing: 0.3em; color: var(--gold-500); text-transform: uppercase; display: inline-flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.eyebrow::before, .eyebrow::after { content: ''; width: 32px; height: 1px; background: var(--gold-500); }
.hero h1 { font-family: var(--serif); font-size: clamp(24px, 4vw, 40px); font-weight: 500; letter-spacing: 0.08em; line-height: 1.6; }
.hero .date { margin-top: 18px; font-family: var(--en); font-style: italic; font-size: 13px; letter-spacing: 0.2em; color: rgba(201,169,97,0.75); }
.paper { background: var(--ivory); color: #22293a; padding: 90px 32px; position: relative; }
.paper::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 5px; background: linear-gradient(90deg, transparent, rgba(201,169,97,0.7), transparent); }
.article { max-width: 680px; margin: 0 auto; }
.article p { font-family: var(--serif); font-size: 16px; line-height: 2.3; letter-spacing: 0.05em; color: #2a3240; margin-bottom: 34px; font-weight: 400; }
.article h2 { font-family: var(--serif); font-size: 22px; font-weight: 600; color: var(--navy-900); letter-spacing: 0.06em; margin: 60px 0 28px; padding-bottom: 12px; border-bottom: 1px solid rgba(138,111,58,0.35); line-height: 1.6; }
.article h2 .num { font-family: var(--en); font-style: italic; font-size: 17px; color: var(--gold-700); margin-right: 14px; }
.article .kotoba { font-family: var(--serif); font-size: 19px; line-height: 2.2; color: var(--navy-900); border-left: 2px solid var(--gold-500); padding: 8px 0 8px 26px; margin: 44px 0; font-weight: 500; }
.article ul { margin: 0 0 34px 4px; list-style: none; }
.article ul li { font-family: var(--serif); font-size: 15.5px; line-height: 2.1; color: #2a3240; padding: 10px 0 10px 26px; position: relative; border-bottom: 1px dashed rgba(138,111,58,0.25); }
.article ul li::before { content: ''; position: absolute; left: 0; top: 24px; width: 14px; height: 1px; background: var(--gold-700); }
.cta-box { max-width: 680px; margin: 70px auto 0; background: var(--navy-900); color: #fff; padding: 46px 40px; text-align: center; position: relative; }
.cta-box::before { content: ''; position: absolute; top: -1px; left: -1px; width: 40px; height: 40px; border-top: 2px solid var(--gold-500); border-left: 2px solid var(--gold-500); }
.cta-box::after { content: ''; position: absolute; bottom: -1px; right: -1px; width: 40px; height: 40px; border-bottom: 2px solid var(--gold-500); border-right: 2px solid var(--gold-500); }
.cta-box h3 { font-family: var(--serif); font-size: 20px; font-weight: 500; letter-spacing: 0.08em; margin-bottom: 14px; }
.cta-box h3 .gold { color: var(--gold-500); }
.cta-box p { font-size: 13.5px; color: rgba(255,255,255,0.8); margin-bottom: 28px; line-height: 2; }
.btn { display: inline-flex; align-items: center; gap: 12px; padding: 16px 38px; font-family: var(--serif); font-size: 13.5px; letter-spacing: 0.18em; background: var(--gold-500); color: var(--navy-900); border: 1px solid var(--gold-500); }
.btn:hover { background: transparent; color: var(--gold-500); }
.btn-ghost { background: transparent; color: #fff; margin-left: 14px; }
.btn-ghost:hover { color: var(--gold-500); }
.list-wrap { max-width: 760px; margin: 0 auto; padding: 70px 32px 110px; }
.card { display: block; background: var(--navy-800); border: 1px solid rgba(201,169,97,0.2); padding: 36px 40px; margin-bottom: 24px; transition: border-color .3s, transform .3s; }
.card:hover { border-color: var(--gold-500); transform: translateY(-3px); }
.card .c-label { font-family: var(--en); font-style: italic; font-size: 12px; letter-spacing: 0.25em; color: var(--gold-500); text-transform: uppercase; }
.card h2 { font-family: var(--serif); font-size: 21px; font-weight: 500; letter-spacing: 0.06em; margin: 12px 0 10px; line-height: 1.6; }
.card p { font-size: 13.5px; color: rgba(255,255,255,0.75); line-height: 2; }
.card .more { display: inline-block; margin-top: 16px; font-family: var(--en); font-style: italic; font-size: 12.5px; letter-spacing: 0.2em; color: var(--gold-500); }
.footer { background: var(--navy-950); padding: 44px 32px; text-align: center; border-top: 1px solid rgba(201,169,97,0.12); }
.footer .f-links { display: flex; gap: 28px; justify-content: center; flex-wrap: wrap; font-size: 12.5px; letter-spacing: 0.12em; margin-bottom: 22px; }
.footer .f-links a { color: rgba(255,255,255,0.75); }
.footer .f-links a:hover { color: var(--gold-500); }
.footer .copy { font-size: 11px; color: rgba(255,255,255,0.45); letter-spacing: 0.15em; }
@media (max-width: 768px) {
  .nav { padding: 12px 18px; }
  .nav-links { display: none; }
  .hero { padding: 64px 20px 50px; }
  .paper { padding: 60px 20px; }
  .article p { font-size: 15px; line-height: 2.15; margin-bottom: 26px; }
  .article h2 { font-size: 19px; margin: 44px 0 20px; }
  .article .kotoba { font-size: 17px; padding-left: 18px; }
  .cta-box { padding: 36px 24px; }
  .btn-ghost { margin: 12px 0 0; }
  .list-wrap { padding: 50px 20px 80px; }
  .card { padding: 28px 22px; }
}