:root {
  --forest: #111812;
  --forest-deep: #090e0a;
  --ivory: #eee9df;
  --paper: #e2dacd;
  --ink: #20231f;
  --muted: #686b64;
  --gold: #b49a70;
  --line: rgba(32, 35, 31, 0.2);
  --serif: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { background: var(--forest-deep); scroll-behavior: smooth; }
body { margin: 0; background: var(--ivory); color: var(--ink); font: 16px/1.9 var(--sans); -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 5px; }
.faq-shell { width: min(calc(100% - 96px), 1120px); margin-inline: auto; }
.faq-skip { position: fixed; z-index: 100; top: 10px; left: 10px; padding: 8px 12px; background: var(--ivory); transform: translateY(-160%); }
.faq-skip:focus { transform: none; }

.faq-header { position: absolute; z-index: 20; inset: 0 0 auto; display: flex; min-height: 78px; align-items: center; justify-content: space-between; padding-inline: 4.5vw; color: var(--ivory); }
.faq-brand { width: 142px; padding-block: 12px; }
.faq-brand img { filter: invert(1); }
.faq-header > a:last-child { display: inline-flex; min-height: 44px; align-items: center; border-bottom: 1px solid rgba(238,233,223,.42); font-family: var(--serif); font-size: 13px; }

.faq-hero { position: relative; isolation: isolate; min-height: min(760px, 88svh); overflow: hidden; color: var(--ivory); }
.faq-hero__media, .faq-hero__shade { position: absolute; inset: 0; }
.faq-hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 50%; filter: saturate(.72); }
.faq-hero__shade { z-index: 1; background: linear-gradient(90deg, rgba(7,12,8,.9), rgba(7,12,8,.54) 60%, rgba(7,12,8,.28)); }
.faq-hero__inner { position: relative; z-index: 2; display: flex; min-height: min(760px, 88svh); flex-direction: column; justify-content: center; padding-top: 78px; }
.faq-hero__inner > p, .faq-intro__inner > p, .faq-group__index, .faq-final p { margin: 0; color: rgba(238,233,223,.68); font-size: 10px; font-weight: 700; letter-spacing: .17em; }
.faq-hero h1 { margin: 28px 0 0; font: 400 clamp(42px, 5vw, 70px)/1.5 var(--serif); }
.faq-hero__inner > span { margin-top: 28px; color: rgba(238,233,223,.8); font-family: var(--serif); font-size: 15px; line-height: 2.2; }

.faq-intro { padding-block: 150px; background: var(--paper); }
.faq-intro__inner, .faq-group { display: grid; grid-template-columns: minmax(180px,.65fr) minmax(420px,1.35fr); gap: 8%; }
.faq-intro__inner > p, .faq-group__index { color: #526557; }
.faq-intro h2 { margin: 0; font: 400 clamp(32px,4vw,52px)/1.6 var(--serif); }
.faq-intro div > span { display: block; max-width: 620px; margin-top: 28px; color: var(--muted); font-family: var(--serif); font-size: 14px; line-height: 2.3; }

.faq-list { padding-block: 150px; }
.faq-group + .faq-group { margin-top: 130px; }
.faq-group__questions { border-top: 1px solid var(--line); }
.faq-group details { border-bottom: 1px solid var(--line); }
.faq-group summary { position: relative; padding: 27px 54px 27px 0; cursor: pointer; list-style: none; font-family: var(--serif); font-size: 18px; line-height: 1.8; }
.faq-group summary::-webkit-details-marker { display: none; }
.faq-group summary::after { position: absolute; top: 30px; right: 4px; color: var(--gold); content: "+"; font-family: var(--sans); font-size: 20px; font-weight: 300; }
.faq-group details[open] summary::after { content: "−"; }
.faq-group details > p { max-width: 680px; margin: -4px 50px 30px 0; color: var(--muted); font-size: 13px; line-height: 2.25; }
.faq-group details > p a { border-bottom: 1px solid var(--line); }

.faq-final { padding-block: 140px; background: var(--forest); color: var(--ivory); text-align: center; }
.faq-final h2 { margin: 28px 0 0; font: 400 clamp(32px,4vw,52px)/1.65 var(--serif); }
.faq-final > div > span { display: block; margin-top: 24px; color: rgba(238,233,223,.66); font-family: var(--serif); font-size: 14px; line-height: 2.2; }
.faq-final a { display: inline-flex; min-height: 54px; align-items: center; gap: 24px; margin-top: 38px; padding-inline: 30px; border: 1px solid rgba(238,233,223,.5); border-radius: 999px; font-family: var(--serif); font-size: 14px; }

.faq-footer { padding-block: 38px; background: var(--forest-deep); color: rgba(238,233,223,.62); }
.faq-footer > div { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 28px; font-size: 11px; }
.faq-footer > div > a { font-family: var(--serif); font-size: 16px; }
.faq-footer nav { display: flex; gap: 26px; }
.faq-footer p { margin: 0; text-align: right; }

@media (max-width: 820px) {
  .faq-shell { width: min(calc(100% - 48px), 680px); }
  .faq-intro__inner, .faq-group { grid-template-columns: 1fr; gap: 35px; }
  .faq-footer > div { grid-template-columns: 1fr; align-items: start; }
  .faq-footer p { text-align: left; }
}

@media (max-width: 560px) {
  .faq-shell { width: min(calc(100% - 36px), 520px); }
  .faq-header { min-height: 68px; padding-inline: 18px; }
  .faq-brand { width: 112px; }
  .faq-hero, .faq-hero__inner { min-height: min(700px, 86svh); }
  .faq-hero h1 { font-size: 39px; }
  .faq-hero__shade { background: rgba(7,12,8,.64); }
  .faq-intro, .faq-list { padding-block: 110px; }
  .faq-intro h2 { font-size: 32px; }
  .faq-group + .faq-group { margin-top: 90px; }
  .faq-group summary { padding-block: 23px; font-size: 16px; }
  .faq-group summary::after { top: 25px; }
  .faq-group details > p { margin-right: 8px; }
  .faq-final { padding-block: 110px; }
  .faq-footer nav { flex-direction: column; gap: 13px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }