/* 「はじめに」画面 - hubのロードマップ表示を移植したもの。
   .rm 配下は独自の色・書体変数を持つ自己完結スコープ。 */

/* hubのintro.htmlはmainをpadding: 0で描画する。SPA共通mainの余白
   (36px 44px) を全量相殺し、ロードマップだけを同じキャンバス幅にする。 */
#page-intro.page.active { margin: -36px -44px; background: #ffffff; }

.rm, .rm * { box-sizing: border-box; }
.rm {
  --gold: #A67F2E; --gold-bright: #C9A227; --gold-pale: #F8F2E4; --gold-line: #DFCF9E;
  --ribbon: linear-gradient(105deg, #8A6A22 0%, #C9A24B 18%, #F2DC9B 38%, #B98E38 58%, #F2DC9B 78%, #8A6A22 100%);
  --ink: #141414; --muted: #5F5F5F; --faint: #8E8E8E; --hair: #E2E2E2; --paper: #FFFFFF; --wash: #FAFAFA;
  --serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Shippori Mincho", serif;
  --sans: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif;
  font-family: var(--sans); color: var(--ink);
  max-width: 1120px; margin: 0 auto; padding: 44px 24px 56px;
}
.rm__head { text-align: center; max-width: 680px; margin: 0 auto 40px; }
.rm__eyebrow {
  font-family: var(--sans); font-size: 11px; font-weight: 700; letter-spacing: .34em;
  background: var(--ribbon); -webkit-background-clip: text; background-clip: text; color: transparent; margin: 0 0 14px;
}
.page .rm__t { font-family: var(--serif); font-size: 28px; font-weight: 600; letter-spacing: .04em; line-height: 1.5; margin: 0 0 14px; color: var(--ink); }
.rm__t .u {
  background-image: linear-gradient(var(--gold-line), var(--gold-line)); background-repeat: no-repeat;
  background-position: 0 100%; background-size: 100% 8px; padding-bottom: 2px;
}
.rm__lead { margin: 0; font-size: 15px; line-height: 1.95; color: var(--muted); }

.rm-band { display: flex; align-items: center; gap: 14px; margin: 0 0 22px; }
.rm-band--gap { margin-top: 34px; }
.rm-band__t { font-family: var(--sans); font-size: 12px; font-weight: 700; letter-spacing: .18em; color: var(--gold); white-space: nowrap; }
.rm-band__ln { flex: 1; height: 1px; background: var(--gold-line); }

.rm-steps { position: relative; margin: 0 0 8px; padding-left: 6px; }
.rm-step { position: relative; display: flex; gap: 22px; align-items: flex-start; padding: 0 0 26px; }
.rm-step:last-child { padding-bottom: 0; }
.rm-step:not(:last-child)::before { content: ""; position: absolute; left: 27px; top: 56px; bottom: -4px; width: 2px; background: var(--gold-line); }
.rm-step__no {
  position: relative; z-index: 1; flex: 0 0 56px; width: 56px; height: 56px; border-radius: 50%;
  background: var(--ribbon); display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-family: var(--sans); color: #0A0A0B; line-height: 1; box-shadow: 0 4px 14px rgba(166, 127, 46, .28);
}
.rm-step__no small { font-size: 8.5px; font-weight: 700; letter-spacing: .14em; opacity: .72; margin-bottom: 2px; }
.rm-step__no b { font-family: var(--serif); font-size: 22px; font-weight: 600; }
.rm-step__body { flex: 1; border: 1px solid var(--hair); background: var(--paper); padding: 18px 22px; transition: background .2s, border-color .2s; text-decoration: none; }
a.rm-step__body { color: var(--ink); }
.rm-step__body:hover { background: var(--wash); border-color: var(--gold-line); }
.rm-step__t { font-family: var(--serif); font-size: 19px; font-weight: 600; line-height: 1.6; margin: 0 0 6px; color: var(--ink); }
.rm-step__d { font-size: 14px; line-height: 1.85; color: var(--muted); margin: 0 0 10px; }
.rm-step__lk { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; letter-spacing: .04em; color: var(--gold); }
.rm-step__lk::after { content: "→"; font-size: 13px; }
.rm-step__body:hover .rm-step__lk { color: var(--gold-bright); }

.rm-fork { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 8px; }
.rm-track { border: 1px solid var(--gold-line); border-top: 3px solid var(--gold); background: var(--paper); padding: 26px 24px 24px; }
.rm-track__tag {
  display: inline-block; font-family: var(--sans); font-size: 11px; font-weight: 700; letter-spacing: .12em;
  color: #0A0A0B; background: var(--ribbon); padding: 4px 12px; margin: 0 0 14px;
}
.rm-track__t { font-family: var(--serif); font-size: 20px; font-weight: 600; letter-spacing: .02em; line-height: 1.5; margin: 0 0 4px; color: var(--ink); }
.rm-track__for { font-size: 12.5px; font-weight: 700; letter-spacing: .04em; color: var(--faint); margin: 0 0 18px; }
.rm-sub { list-style: none; margin: 0; padding: 0; }
.rm-sub li { position: relative; padding: 0 0 16px 34px; }
.rm-sub li:last-child { padding-bottom: 0; }
.rm-sub li::before {
  content: attr(data-n); position: absolute; left: 0; top: 1px; z-index: 1;
  width: 22px; height: 22px; border-radius: 50%; background: var(--gold-pale); border: 1px solid var(--gold-line);
  color: var(--gold); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center;
}
.rm-sub li:not(:last-child)::after { content: ""; position: absolute; left: 10px; top: 24px; bottom: 2px; width: 2px; background: var(--gold-line); }
.rm-sub__t { display: block; font-size: 15.5px; font-weight: 700; line-height: 1.6; color: var(--ink); margin-bottom: 3px; }
.rm-sub__d { display: block; font-size: 13px; line-height: 1.8; color: var(--muted); margin-bottom: 6px; }
.rm-sub__lk { font-size: 12.5px; font-weight: 700; color: var(--gold); text-decoration: none; }
.rm-sub__lk::after { content: " →"; }
.rm-sub__lk:hover { color: var(--gold-bright); }

.rm .rm-btns { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.rm a.rm-btn {
  display: inline-flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; letter-spacing: .02em;
  padding: 10px 18px; border-radius: 6px; text-decoration: none; color: var(--gold); background: var(--gold-pale);
  border: 1px solid var(--gold-line); transition: background .15s, color .15s;
}
.rm a.rm-btn:hover { background: #ffffff; color: var(--gold-bright); }

@media (max-width: 768px) {
  .page .rm__t { font-size: 22px; }
  .rm-fork { grid-template-columns: 1fr; gap: 16px; }
  .rm-step { gap: 14px; }
  .rm-step__no { flex-basis: 48px; width: 48px; height: 48px; }
  .rm-step:not(:last-child)::before { left: 23px; top: 50px; }
  .rm-step__no b { font-size: 19px; }
}