/* ===== スマホ表示最適化 ===== */

/* MV下コラージュは PC では非表示 */
.mv-collage { display: none; }

@media (max-width:767px) {
  body { overflow-x: clip; }
  .hero .pane { width: 100%; }
  .masthead .issue-line { flex-wrap: wrap; row-gap: 4px; }
  section.grid .card .hashtags { flex-wrap: wrap; white-space: normal; overflow: visible; }
  footer.site .ft-top { display: flex; flex-direction: column; gap: 36px; }
  footer.site .ft-nav { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px 24px; }
  footer.site .ft-col.ft-follow { grid-column: 1 / -1; }

  /* ===== TOP MV: 風コラージュレイアウト ===== */
  section.hero { position: relative; height: auto; padding: 0 0 calc(26vh + 40px); padding-bottom: calc(26svh + 40px); overflow: visible; }
  section.hero .pane.left { position: relative; inset: auto; width: 100%; max-width: none; height: 56vh; height: 56svh; min-height: 400px; margin: 0; }
  section.hero .pane.right { position: absolute; inset: auto 0 24px auto; width: 44%; height: 26vh; height: 26svh; min-height: 200px; margin: 0; }
  section.hero .copy { position: absolute; inset: auto; left: 22%; top: 38vh; top: 38svh; transform: none; padding: 0; margin: 0; display: flex; flex-direction: row; align-items: flex-start; gap: 14px; max-width: none; z-index: 8; }
  section.hero .copy .jp { writing-mode: vertical-rl; font-size: 25px; line-height: 1.95; letter-spacing: .12em; max-height: none; }
  section.hero .copy .jp .line { display: block; margin: 0; }
  section.hero .copy .en { writing-mode: vertical-rl; font-size: 8px; letter-spacing: .3em; margin: 4px 0 0; }
  section.hero .scroll { position: absolute; left: 18px; top: 52vh; top: 52svh; right: auto; bottom: auto; z-index: 8; }
  section.hero .hero-dots { position: absolute; left: 18px; right: auto; top: auto; bottom: calc(26vh + 48px); bottom: calc(26svh + 48px); z-index: 8; }

  /* ===== MV下: 互い違いコラージュ ===== */
  .mv-collage { display: block; padding: 28px 0 36px; background: #fff; }
  .mv-collage .mvc-item { position: relative; margin: 0 0 36px; overflow: hidden; }
  .mv-collage .mvc-item img { display: block; width: 100%; height: 100%; object-fit: cover; }
  .mv-collage .mvc-tick { display: block; width: 28px; height: 1px; background: #2D3744; opacity: .55; margin: 14px auto 0; }
  .mv-collage .mvc-right { width: 62%; height: 32vh; min-height: 220px; margin-left: auto; margin-right: 24px; }
.mv-collage .mvc-wide  { width: calc(100% - 48px); height: 42vh; min-height: 260px; margin-left: auto; margin-right: auto; margin-bottom: 12px; }

  /* ===== アニメーション (踏襲) ===== */
  /* 各アイテム: 下からフェードイン */
  .mv-collage .mvc-item { opacity: 0; transform: translateY(40px); animation: mvcFadeUp .9s cubic-bezier(.2,.7,.2,1) forwards; }
  .mv-collage .mvc-right { animation-delay: .15s; }
.mv-collage .mvc-wide  { animation-delay: .75s; }
  /* 画像: ゆっくりズーム (Ken Burns) */
  .mv-collage .mvc-item img { transform-origin: center center; animation: mvcKenBurns 14s ease-in-out infinite alternate; }
  .mv-collage .mvc-right img { animation-delay: 0s; }
.mv-collage .mvc-wide  img { animation-delay: -8s; }
  /* ティック: 中央から横に伸びる */
  .mv-collage .mvc-tick { transform: scaleX(0); transform-origin: center; animation: mvcTick .8s ease-out forwards; }
  .mv-collage .mvc-right .mvc-tick { animation-delay: .9s; }
.mv-collage .mvc-wide  .mvc-tick { animation-delay: 1.5s; }
}
@keyframes mvcFadeUp { to { opacity: 1; transform: translateY(0); } }
@keyframes mvcKenBurns { 0% { transform: scale(1); } 100% { transform: scale(1.08); } }
@keyframes mvcTick { to { transform: scaleX(1); } }
@media (prefers-reduced-motion: reduce) {
  .mv-collage .mvc-item, .mv-collage .mvc-item img, .mv-collage .mvc-tick { animation: none !important; opacity: 1 !important; transform: none !important; }
}

/* ===== PC用 SNS フロートボタン ===== */
.sns-float { position: fixed; right: 22px; bottom: 24px; z-index: 60; display: flex; flex-direction: column; align-items: center; gap: 16px; padding: 18px 10px; opacity: 1; transform: translateY(0); transition: opacity .35s ease, transform .35s ease; pointer-events: auto; }
.sns-float .sns-float-lbl { writing-mode: vertical-rl; font: 500 10px/1 var(--label-en, "Jost"); letter-spacing: .3em; color: var(--ink-soft, #6C7785); margin-bottom: 6px; }
.sns-float a { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 50%; color: var(--ink, #2D3744); background: rgba(255,255,255,.92); box-shadow: 0 4px 14px rgba(0,0,0,.08); transition: color .2s ease, background .2s ease, transform .2s ease; }
.sns-float a:hover { color: var(--accent, #8a7e6f); transform: translateY(-2px); }
.sns-float.is-hidden { opacity: 0; transform: translateY(12px); pointer-events: none; }
@media (max-width:767px) { .sns-float { display: none !important; } }
@media (prefers-reduced-motion: reduce) { .sns-float { transition: none; } }