/* ==========================================================
   サポート(/support/)と 404(/404.html)
   ========================================================== */

.support { max-width: calc(880px + var(--gutter) * 2); }

.support-hero { padding-block: 48px 8px; }
@media (min-width: 960px) { .support-hero { padding-block: 80px 16px; } }

/* 目次 */
.support-toc { margin-top: 20px; }
.support-toc__list { display: flex; flex-wrap: wrap; gap: 8px; }
.support-toc a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}
.support-toc a:hover { border-color: var(--border-emph); color: var(--text); }
.support-toc svg { width: 16px; height: 16px; color: var(--text-muted); }

.support-sec { padding-block: 48px; scroll-margin-top: calc(var(--header-h) + 8px); }
.support-sec + .support-sec { border-top: 1px solid var(--border); }
.support-sec__title { margin-bottom: 24px; }
@media (min-width: 960px) {
  .support-sec { padding-block: 64px; }
  .support-sec__title { margin-bottom: 32px; }
}

/* お問い合わせ */
.contact-body { display: grid; gap: 14px; max-width: var(--measure); }
.contact-body p { line-height: 1.9; }
.contact-note { color: var(--text-muted); }

/* 2つのボタンは同格のカード型(アプリと同じ) */
.contact-actions {
  display: grid;
  gap: 12px;
  margin-top: 28px;
  max-width: var(--measure);
}
@media (min-width: 640px) { .contact-actions { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; } }
.contact-btn {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 72px;
  padding: 16px 20px;
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: var(--r-lg);
  color: var(--text);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.contact-btn:hover { background: #2a2750; color: var(--text); border-color: var(--ps-accent); }
.contact-btn .ficon--tile { --tile-size: 40px; border-radius: 11px; }
.contact-btn > svg { margin-left: auto; width: 18px; height: 18px; color: var(--accent); flex: none; }
.contact-address { margin-top: 16px; color: var(--text-muted); font-size: 15px; }
.contact-address a { font-weight: 700; }

/* ---------- 404 ---------- */
.nf {
  min-height: calc(100vh - var(--header-h) - 200px);
  display: grid;
  place-items: center;
  text-align: center;
  padding-block: 96px;
}
.nf__inner { display: grid; justify-items: center; gap: 24px; }
.nf__mark { --mark-size: 48px; opacity: .8; filter: drop-shadow(0 0 8px rgba(129, 140, 248, .55)); }
.nf h1 { font-size: clamp(22px, 1.2vw + 17px, 30px); }