:root { color-scheme: dark; --bg: #070a18; --panel: #12182e; --line: #323b62; --text: #f3f2ff; --muted: #b7bfdb; --accent: #c4b5ff; --gold: #ffe17b; }
* { box-sizing: border-box; }
html { background: var(--bg); scroll-padding-top: 24px; }
body { margin: 0; background: radial-gradient(ellipse at 50% 0, #191334 0, var(--bg) 54%); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif; font-size: 16px; line-height: 1.85; overflow-wrap: anywhere; }
a { color: var(--accent); text-underline-offset: .22em; text-decoration-thickness: 1px; }
a:hover { color: var(--gold); }
a:focus-visible { outline: 3px solid var(--gold); outline-offset: 5px; border-radius: 3px; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 20px; font-size: clamp(1.8rem, 4.8vw, 2.5rem); line-height: 1.4; letter-spacing: .015em; }
h2 { margin: 40px 0 14px; font-size: 1.25rem; line-height: 1.65; }
h3 { font-size: 1.05rem; line-height: 1.7; }
p { margin-bottom: 18px; }
.site-shell { width: min(100% - 48px, 880px); margin-inline: auto; }
.site-header { padding: 25px 0; display: flex; align-items: center; justify-content: space-between; gap: 16px 30px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--text); font-weight: 850; line-height: 1.3; letter-spacing: .045em; text-decoration: none; font-size: 16px; }
.brand img { flex: 0 0 44px; width: 44px; border-radius: 10px; }
.site-header nav { display: flex; align-items: center; flex-wrap: wrap; gap: 4px 24px; }
.site-header nav a { padding-block: 8px; font-size: 14px; color: var(--muted); text-decoration: none; }
.site-header nav a[aria-current="page"] { color: var(--gold); text-decoration: underline; }
main { padding: 56px 0 68px; }
main:focus { outline: none; }
.eyebrow { color: var(--gold); letter-spacing: .11em; font-size: .8rem; font-weight: 750; margin-bottom: 14px; }
.hero { display: grid; grid-template-columns: minmax(0, 1fr) 128px; gap: 0 32px; align-items: center; }
.hero-icon { grid-column: 2; grid-row: 1; width: 128px; border-radius: 26px; box-shadow: 0 18px 40px #0005; }
.hero > div { grid-column: 1; grid-row: 1; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1.15; letter-spacing: -.025em; margin-bottom: 18px; }
.hero-line { font-weight: 750; font-size: 1.4rem; margin-bottom: 0; }
.hero-description { grid-column: 1 / -1; max-width: 620px; font-size: 1.05rem; color: var(--muted); margin: 32px 0 22px; }
.status { display: flex; align-items: baseline; gap: 9px; grid-column: 1 / -1; color: var(--muted); font-size: .88rem; margin-bottom: 0; }
.status-dot { flex: 0 0 7px; width: 7px; height: 7px; border-radius: 50%; background: var(--gold); }
.link-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 46px; }
.link-card { position: relative; display: block; padding: 27px 25px 28px; border: 1px solid var(--line); border-radius: 18px; background: var(--panel); text-decoration: none; color: var(--text); }
.link-card:hover { border-color: var(--accent); color: var(--text); }
.card-label { font-size: .68rem; color: var(--accent); letter-spacing: .12em; font-weight: 800; }
.link-card h2 { font-size: 1.1rem; margin: 9px 0 10px; }
.link-card p { color: var(--muted); font-size: .9rem; margin: 0 20px 0 0; }
.card-arrow { position: absolute; right: 22px; bottom: 24px; color: var(--gold); }
.document { max-width: 760px; }
.document > .updated { color: var(--muted); font-size: .85rem; margin-bottom: 30px; }
.document p { color: #d4d9ed; }
.document section { margin-top: 34px; }
.document section h2 { color: var(--text); }
.document .intro { max-width: 650px; margin-bottom: 30px; }
.contact-panel { padding: 25px; background: var(--panel); border: 1px solid var(--line); border-radius: 18px; }
.contact-panel h2 { margin-top: 0; }
.email-link { display: inline-block; font-size: clamp(.98rem, 3.9vw, 1.3rem); font-weight: 700; padding-block: 6px; margin-bottom: 16px; line-height: 1.65; }
.contact-panel p { font-size: .94rem; }
.contact-panel .small { color: var(--muted); font-size: .82rem; margin-bottom: 0; }
.faq-item { border-top: 1px solid var(--line); padding-top: 22px; margin-top: 22px; }
.faq-item h3 { margin-bottom: 10px; }
.faq-item p { font-size: .95rem; margin-bottom: 0; }
.document-note { margin-top: 36px; font-size: .9rem; }
.site-footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px; border-top: 1px solid var(--line); padding: 24px 0 32px; color: var(--muted); font-size: .75rem; }
.site-footer a { color: var(--muted); }
.skip-link { position: absolute; z-index: 10; top: 8px; left: 12px; padding: 8px 14px; background: var(--gold); color: var(--bg); transform: translateY(-180%); }
.skip-link:focus { transform: none; }
@media (max-width: 540px) {
  .site-shell { width: min(100% - 36px, 880px); }
  .site-header { padding: 19px 0 15px; gap: 10px; }
  .site-header nav { width: 100%; gap: 22px; }
  main { padding: 36px 0 44px; }
  .hero { grid-template-columns: minmax(0, 1fr) 88px; gap: 0 16px; }
  .hero-icon { width: 88px; border-radius: 18px; }
  .hero h1 { font-size: clamp(1.7rem, 7vw, 2.2rem); margin-bottom: 13px; }
  .hero-line { font-size: 1.08rem; }
  .hero .eyebrow { font-size: .65rem; letter-spacing: .02em; }
  .hero-description { font-size: .96rem; margin-top: 25px; }
  .status { font-size: .8rem; }
  .link-grid { grid-template-columns: 1fr; gap: 14px; margin-top: 30px; }
  .link-card { padding: 22px; }
  .contact-panel { padding: 20px; }
  .document h1 { font-size: 1.7rem; }
}