/* 紹介ページ（/）。site.css の上に重ねる */
.hero { padding-block: 56px 40px; border-bottom: 1px solid var(--line); background: #fff; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 48px; align-items: center; max-width: 1200px; }
.eyebrow { margin: 0 0 12px; font-size: 13px; color: var(--beni); letter-spacing: .06em; }
.hero h1 { font-family: var(--serif); font-weight: 600; color: var(--ink); font-size: clamp(30px, 4.2vw, 46px); line-height: 1.4; margin: 0 0 20px; letter-spacing: .02em; }
.sub { font-size: 16px; margin: 0 0 28px; max-width: 30em; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.fine { margin: 16px 0 0; font-size: 13px; color: var(--ink-3); }
.hero-shot { margin: 0; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; box-shadow: 0 18px 50px -24px rgb(60 20 30 / 35%); background: var(--desk); }

.feats { padding-block: 72px; }
.feats h2, .pdf h2, .faq h2, .end h2 { font-family: var(--serif); font-weight: 600; color: var(--ink); font-size: 26px; line-height: 1.5; margin: 0 0 28px; text-wrap: balance; }
.feat-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 40px; margin: 0; border-top: 1px solid var(--ink); }
.feat-list > div { padding: 22px 0 26px; border-bottom: 1px solid var(--line); }
.feat-list dt { font-family: var(--serif); font-weight: 600; color: var(--ink); font-size: 18px; line-height: 1.5; margin-bottom: 8px; }
.feat-list dd { margin: 0; font-size: 14.5px; }

.pdf { padding-block: 64px; background: var(--desk); border-block: 1px solid var(--line); }
.pdf .wrap { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 48px; align-items: center; }
.pdf figure { margin: 0; background: #fff; border: 1px solid var(--line); box-shadow: 0 10px 30px -18px rgb(0 0 0 / 30%); }
.pdf p { margin: 0 0 12px; }

.faq { padding-block: 72px; }
.faq details { border-bottom: 1px solid var(--line); padding: 16px 0; }
.faq details:first-of-type { border-top: 1px solid var(--ink); }
.faq summary { cursor: pointer; font-weight: 500; color: var(--ink); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "＋"; color: var(--ink-3); }
.faq details[open] summary::after { content: "－"; }
.faq details p { margin: 10px 0 0; font-size: 14.5px; }

.end { padding-block: 64px 80px; text-align: center; border-top: 1px solid var(--line); background: #fff; }
.end h2 { margin-bottom: 20px; }

@media (max-width: 900px) {
  .hero .wrap, .pdf .wrap { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .feat-list { grid-template-columns: minmax(0, 1fr); }
  .hero { padding-block: 36px 32px; }
}