/* ══════════════════════════════════════════════════════════════════
 * クラウド・アルカナ 公式サイト — 共通スタイルシステム
 *   - ゲーム本体(style.css)のブランドトークンを踏襲（深紫の薄明＋金/紫/シアン）
 *   - ただし #app/#topbar 等ゲーム固有ルールは持ち込まず、サイトとして自己完結
 *   - ガラスUI / ダークテーマ / カードUI / スクロール演出 / モバイルファースト
 *   - 全ページ共通のヘッダ/フッタは site.js が #site-header / #site-footer に注入
 *   - デザイン変更は本ファイルのトークンとコンポーネントのみで完結（保守性重視）
 * ════════════════════════════════════════════════════════════════ */

/* ── デザイントークン ────────────────────────────────────────── */
:root{
  /* 背景（ゲームと同一） */
  --bg0:#0f0820; --bg1:#1a0f2e; --bg2:#2a1a4a;
  /* 文字 */
  --ink:#f4ecff; --ink-dim:#bda9e0; --ink-mute:#8a7ab0;
  /* アクセント */
  --accent:#ffd166;  --accent2:#9b6bff;  --accent3:#5ad7ff;
  --danger:#ff6b9b;  --ok:#7fffa8;
  /* ガラス */
  --glass-bg:rgba(30,18,54,.55);
  --glass-brd:rgba(255,255,255,.10);
  --glass-hi:rgba(255,255,255,.06);
  --glass-blur:14px;
  /* 効果 */
  --shadow:0 10px 40px rgba(0,0,0,.45);
  --shadow-lg:0 24px 70px rgba(0,0,0,.55);
  --glow-gold:0 0 24px rgba(255,209,102,.35);
  --glow-violet:0 0 32px rgba(155,107,255,.30);
  --radius:16px; --radius-sm:10px; --radius-lg:24px;
  /* レイアウト */
  --wrap:1160px; --wrap-narrow:760px;
  --header-h:64px;
  --grad-brand:linear-gradient(100deg,#ffd166,#ff9bce 40%,#9b6bff 70%,#5ad7ff);
  --grad-cta:linear-gradient(135deg,#9b6bff,#5ad7ff);
  --grad-gold:linear-gradient(135deg,#ffe9a8,#ffd166,#ff9b3a);
  --ease:cubic-bezier(.22,.61,.36,1);
  /* フォント */
  --font:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic UI","Noto Sans JP","Segoe UI",system-ui,sans-serif;
}

/* ── リセット & ベース ───────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){ html{scroll-behavior:auto} }
body{
  margin:0; font-family:var(--font); color:var(--ink);
  line-height:1.85; font-feature-settings:"palt"; letter-spacing:.02em;
  background:var(--bg0);
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
/* 背景：固定のオーロラ状グラデ + 微粒子 */
body::before{
  content:""; position:fixed; inset:0; z-index:-2;
  background:
    radial-gradient(1200px 700px at 78% -8%, rgba(90,215,255,.10), transparent 60%),
    radial-gradient(1000px 800px at 12% 4%, rgba(155,107,255,.14), transparent 60%),
    radial-gradient(900px 900px at 50% 118%, rgba(255,107,155,.10), transparent 60%),
    radial-gradient(ellipse at top,#241546 0%,#0f0820 68%);
}
body::after{
  content:""; position:fixed; inset:0; z-index:-1; opacity:.5; pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px, transparent 1.4px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse at center, #000 30%, transparent 75%);
          mask-image:radial-gradient(ellipse at center, #000 30%, transparent 75%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent3);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent)}
h1,h2,h3,h4{line-height:1.35;font-weight:800;letter-spacing:.03em}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent3);outline-offset:3px;border-radius:6px}

/* スクリーンリーダ専用 */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
/* スキップリンク */
.skip-link{position:fixed;left:12px;top:-60px;z-index:200;background:var(--accent);color:#1a0a2a;
  padding:10px 16px;border-radius:8px;font-weight:800;transition:top .2s}
.skip-link:focus{top:12px}

/* ── レイアウトユーティリティ ────────────────────────────────── */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 22px}
.wrap-narrow{max-width:var(--wrap-narrow)}
.section{padding:96px 0;position:relative}
.section--alt{background:linear-gradient(180deg,rgba(42,26,74,.28),rgba(15,8,32,0));}
.section-eyebrow{display:block;font-size:12px;letter-spacing:.34em;color:var(--accent3);
  text-transform:uppercase;font-weight:700;margin-bottom:10px}
.section-title{font-size:clamp(24px,4.4vw,40px);margin:0 0 12px;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
  display:inline-block;padding-bottom:2px}
.section-lead{color:var(--ink-dim);font-size:clamp(14px,2vw,16px);max-width:60ch;margin:0 auto 8px}
.section-head{text-align:center;margin-bottom:48px}
.text-center{text-align:center}

/* ══ ヘッダ（site.js が注入） ═══════════════════════════════════ */
.site-header{
  position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:120;
  display:flex;align-items:center;
  background:rgba(15,8,32,.55);backdrop-filter:blur(var(--glass-blur));
  -webkit-backdrop-filter:blur(var(--glass-blur));
  border-bottom:1px solid transparent;transition:background .3s,border-color .3s;
}
.site-header.is-scrolled{background:rgba(12,6,26,.86);border-bottom-color:var(--glass-brd)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.06em;
  font-size:17px;color:var(--ink);white-space:nowrap}
.brand:hover{color:var(--ink)}
.brand-mark{width:28px;height:28px;flex:0 0 auto;filter:drop-shadow(var(--glow-gold))}
.brand-name .en{display:block;font-size:9px;letter-spacing:.28em;color:var(--accent3);font-weight:700}

.nav{display:flex;align-items:center;gap:2px}
.nav a{color:var(--ink-dim);font-size:13.5px;font-weight:700;padding:9px 12px;border-radius:8px;
  letter-spacing:.06em;transition:color .2s,background .2s;white-space:nowrap}
.nav a:hover{color:var(--ink);background:var(--glass-hi)}
.nav a.is-active{color:var(--accent)}
.nav a.is-active::after{content:"";display:block;height:2px;margin-top:5px;border-radius:2px;background:var(--grad-brand)}
.nav-cta{margin-left:8px}
.btn-play{display:inline-flex;align-items:center;gap:7px;background:var(--grad-cta);color:#0a0518;
  font-weight:900;padding:10px 18px;border-radius:999px;font-size:13.5px;letter-spacing:.06em;
  box-shadow:var(--glow-violet);transition:transform .2s var(--ease),filter .2s}
.btn-play:hover{transform:translateY(-2px);filter:brightness(1.08);color:#0a0518}

/* ハンバーガー */
.nav-toggle{display:none;width:44px;height:44px;border:0;background:transparent;cursor:pointer;
  padding:0;position:relative}
.nav-toggle span{position:absolute;left:10px;right:10px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .3s var(--ease),opacity .2s}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:27px}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ══ ボタン ════════════════════════════════════════════════════ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;
  font-family:inherit;font-weight:800;letter-spacing:.06em;font-size:15px;
  padding:14px 30px;border-radius:999px;border:1px solid transparent;transition:transform .2s var(--ease),filter .2s,background .2s,border-color .2s;text-decoration:none}
.btn-primary{background:var(--grad-cta);color:#0a0518;box-shadow:var(--glow-violet)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);color:#0a0518}
.btn-gold{background:var(--grad-gold);color:#2a1608;box-shadow:var(--glow-gold)}
.btn-gold:hover{transform:translateY(-2px);filter:brightness(1.06);color:#2a1608}
.btn-ghost{background:var(--glass-bg);color:var(--ink);border-color:var(--glass-brd);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.btn-ghost:hover{border-color:var(--accent3);color:var(--ink);transform:translateY(-2px)}
.btn-lg{font-size:16px;padding:16px 38px}
.btn-block{display:flex;width:100%}

/* ══ ガラスカード ══════════════════════════════════════════════ */
.glass{background:var(--glass-bg);border:1px solid var(--glass-brd);border-radius:var(--radius);
  backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));
  box-shadow:var(--shadow);position:relative;overflow:hidden}
.glass::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(160deg,var(--glass-hi),transparent 40%)}

/* ══ HERO ══════════════════════════════════════════════════════ */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;
  padding:calc(var(--header-h) + 40px) 0 60px;overflow:hidden}
.hero-media{position:absolute;inset:0;z-index:-1}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center 22%;
  opacity:.5;transform:scale(1.06);will-change:transform}
.hero-media::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,8,32,.35) 0%,rgba(15,8,32,.55) 55%,var(--bg0) 100%),
    linear-gradient(90deg,rgba(15,8,32,.7),transparent 60%)}
.hero-inner{max-width:680px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;
  color:var(--accent);border:1px solid var(--card-edge,rgba(255,209,102,.4));border-radius:999px;
  padding:7px 16px;margin-bottom:22px;background:rgba(255,209,102,.06);font-weight:700}
.hero-title{font-size:clamp(34px,7.6vw,72px);line-height:1.06;margin:0 0 8px;font-weight:900;
  letter-spacing:.04em;text-shadow:0 4px 40px rgba(0,0,0,.5)}
.hero-title .grad{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:clamp(15px,2.6vw,20px);color:var(--ink);font-weight:700;margin:0 0 18px;letter-spacing:.08em}
.hero-desc{font-size:clamp(13px,2vw,15.5px);color:var(--ink-dim);max-width:52ch;margin:0 0 30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.hero-tag{font-size:11.5px;color:var(--ink-dim);border:1px solid var(--glass-brd);border-radius:999px;
  padding:5px 12px;background:var(--glass-hi)}
.scroll-cue{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);color:var(--ink-mute);
  font-size:10px;letter-spacing:.3em;text-align:center;animation:floaty 2.4s ease-in-out infinite}
.scroll-cue::after{content:"";display:block;width:1px;height:32px;margin:8px auto 0;
  background:linear-gradient(var(--accent3),transparent)}
@keyframes floaty{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,7px)}}

/* ══ 特徴グリッド / カード ═════════════════════════════════════ */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.feature{padding:28px 24px}
.feature-ic{font-size:30px;margin-bottom:14px;filter:drop-shadow(0 4px 14px rgba(0,0,0,.4))}
.feature h3{font-size:18px;margin:0 0 8px;color:var(--ink)}
.feature p{font-size:13.5px;color:var(--ink-dim);margin:0}

/* ══ NEWS ══════════════════════════════════════════════════════ */
.news-list{display:flex;flex-direction:column;gap:2px}
.news-item{display:flex;align-items:center;gap:16px;padding:16px 18px;border-radius:var(--radius-sm);
  transition:background .2s;border-bottom:1px solid rgba(255,255,255,.05)}
.news-item:hover{background:var(--glass-hi)}
.news-date{font-size:12px;color:var(--ink-mute);font-variant-numeric:tabular-nums;white-space:nowrap;flex:0 0 auto;width:96px}
.news-cat{font-size:10.5px;font-weight:800;letter-spacing:.08em;padding:4px 10px;border-radius:999px;white-space:nowrap;flex:0 0 auto}
.news-cat--info{background:rgba(90,215,255,.14);color:#bdecff;border:1px solid rgba(90,215,255,.3)}
.news-cat--update{background:rgba(127,255,168,.12);color:#bfffd4;border:1px solid rgba(127,255,168,.3)}
.news-cat--event{background:rgba(255,209,102,.14);color:#ffe6a8;border:1px solid rgba(255,209,102,.3)}
.news-cat--maint{background:rgba(255,107,155,.14);color:#ffc2d6;border:1px solid rgba(255,107,155,.3)}
.news-title{font-size:13.5px;color:var(--ink);flex:1;min-width:0}

/* ══ CHARACTER ═════════════════════════════════════════════════ */
.char-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}
.char-card{position:relative;border-radius:var(--radius);overflow:hidden;cursor:pointer;
  aspect-ratio:3/4;background:linear-gradient(160deg,var(--cc1,#2a1a4a),var(--cc2,#0f0820));
  border:1px solid var(--glass-brd);transition:transform .3s var(--ease),box-shadow .3s,border-color .3s}
.char-card:hover,.char-card:focus-visible{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--cc-accent,var(--accent3))}
.char-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:top center;
  transition:transform .5s var(--ease)}
.char-card:hover img{transform:scale(1.05)}
.char-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(10,5,20,.9))}
.char-card-meta{position:absolute;left:0;right:0;bottom:0;padding:14px 14px 12px;z-index:1}
.char-card-truename{font-size:10px;letter-spacing:.14em;color:var(--cc-accent,var(--accent3));font-weight:800;text-transform:uppercase}
.char-card-name{font-size:17px;font-weight:900;color:#fff;letter-spacing:.06em;line-height:1.2}
.char-card-role{font-size:10.5px;color:var(--ink-dim);margin-top:2px}

/* キャラ詳細（モーダル） */
.char-modal{position:fixed;inset:0;z-index:160;display:none;align-items:center;justify-content:center;
  padding:20px;background:rgba(6,3,16,.78);backdrop-filter:blur(6px)}
.char-modal.is-open{display:flex;animation:fadein .25s var(--ease)}
.char-modal-box{width:100%;max-width:880px;max-height:90svh;overflow:auto;display:grid;
  grid-template-columns:minmax(0,300px) 1fr;gap:0;border-radius:var(--radius-lg)}
.char-modal-visual{position:relative;background:linear-gradient(160deg,var(--cc1),var(--cc2));min-height:340px}
.char-modal-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:top center}
.char-modal-body{padding:30px 30px 34px}
.char-modal-close{position:absolute;top:12px;right:14px;z-index:2;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--glass-brd);background:rgba(10,5,20,.6);color:var(--ink);font-size:20px;cursor:pointer;line-height:1}
.char-modal-truename{font-size:11px;letter-spacing:.2em;color:var(--cc-accent);font-weight:800;text-transform:uppercase}
.char-modal-name{font-size:30px;font-weight:900;margin:2px 0 2px;letter-spacing:.05em}
.char-modal-role{font-size:13px;color:var(--ink-dim);margin-bottom:16px}
.char-modal-quote{font-size:15px;font-style:italic;color:var(--accent);border-left:3px solid var(--cc-accent);
  padding:6px 0 6px 16px;margin:0 0 18px;line-height:1.7}
.char-modal-desc{font-size:14px;color:var(--ink-dim);margin:0 0 18px}
.char-spec{display:flex;flex-wrap:wrap;gap:8px}
.char-spec span{font-size:11.5px;background:var(--glass-hi);border:1px solid var(--glass-brd);
  border-radius:999px;padding:5px 12px;color:var(--ink-dim)}

/* ══ STORY ═════════════════════════════════════════════════════ */
.story-quote{font-size:clamp(18px,3.4vw,26px);line-height:1.9;font-weight:700;text-align:center;
  color:var(--ink);max-width:24ch;margin:0 auto 10px;letter-spacing:.06em}
.chapter-list{display:grid;gap:14px;counter-reset:chap}
.chapter-row{display:flex;gap:18px;align-items:flex-start;padding:20px 22px}
.chapter-no{font-size:12px;letter-spacing:.2em;color:var(--accent3);font-weight:800;flex:0 0 auto;
  width:54px;padding-top:3px}
.chapter-row h3{font-size:16px;margin:0 0 5px;color:var(--ink)}
.chapter-row p{font-size:13px;color:var(--ink-dim);margin:0}

/* ══ SYSTEM / feature-split ════════════════════════════════════ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split--rev .split-media{order:2}
.split-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);
  border:1px solid var(--glass-brd)}
.split-media img{width:100%;display:block}
.split h3{font-size:clamp(20px,3vw,26px);margin:0 0 12px}
.split p{color:var(--ink-dim);font-size:14.5px}
.split .tick{display:flex;gap:10px;margin-top:10px;font-size:13.5px;color:var(--ink)}
.split .tick::before{content:"◆";color:var(--accent3);flex:0 0 auto}

/* ══ GALLERY ═══════════════════════════════════════════════════ */
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.gallery-grid.is-wide{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.gallery-cell{border-radius:var(--radius);overflow:hidden;border:1px solid var(--glass-brd);
  background:var(--bg1);position:relative;cursor:pointer;aspect-ratio:16/10}
.gallery-cell img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.gallery-cell:hover img{transform:scale(1.06)}
.gallery-cell figcaption{position:absolute;left:0;right:0;bottom:0;padding:10px 12px;font-size:11.5px;
  color:var(--ink);background:linear-gradient(transparent,rgba(6,3,16,.85));z-index:1}
/* ライトボックス */
.lightbox{position:fixed;inset:0;z-index:170;display:none;align-items:center;justify-content:center;
  padding:24px;background:rgba(4,2,12,.9);backdrop-filter:blur(4px)}
.lightbox.is-open{display:flex}
.lightbox img{max-width:100%;max-height:90svh;border-radius:12px;box-shadow:var(--shadow-lg)}
.lightbox-close{position:absolute;top:16px;right:20px;font-size:30px;color:#fff;background:none;border:0;cursor:pointer}

/* ══ FAQ アコーディオン ════════════════════════════════════════ */
.faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{border:1px solid var(--glass-brd);border-radius:var(--radius);overflow:hidden;background:var(--glass-bg)}
.faq-q{width:100%;text-align:left;background:none;border:0;color:var(--ink);font-family:inherit;
  font-size:15px;font-weight:700;padding:18px 52px 18px 20px;cursor:pointer;position:relative;letter-spacing:.03em}
.faq-q::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:22px;
  color:var(--accent3);transition:transform .3s}
.faq-item.is-open .faq-q::after{transform:translateY(-50%) rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease)}
.faq-a-inner{padding:0 20px 20px;color:var(--ink-dim);font-size:13.5px}
.faq-q:hover{color:var(--accent)}

/* ══ CONTACT フォーム ══════════════════════════════════════════ */
.form{max-width:640px;margin:0 auto;display:flex;flex-direction:column;gap:18px}
.form-row{display:flex;flex-direction:column;gap:7px}
.form-row label{font-size:13px;font-weight:700;color:var(--ink)}
.form-row .req{color:var(--danger);font-size:11px;margin-left:6px}
.form-row .opt{color:var(--ink-mute);font-size:11px;margin-left:6px;font-weight:400}
.field{width:100%;font-family:inherit;font-size:15px;color:var(--ink);background:rgba(10,5,20,.5);
  border:1px solid var(--glass-brd);border-radius:var(--radius-sm);padding:13px 15px;transition:border-color .2s,box-shadow .2s}
.field:focus{outline:none;border-color:var(--accent3);box-shadow:0 0 0 3px rgba(90,215,255,.15)}
textarea.field{min-height:160px;resize:vertical;line-height:1.7}
.form-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-note{font-size:12px;color:var(--ink-mute)}
.form-status{display:none;padding:14px 16px;border-radius:var(--radius-sm);font-size:14px;font-weight:700}
.form-status.is-ok{display:block;background:rgba(127,255,168,.12);border:1px solid rgba(127,255,168,.35);color:#bfffd4}
.form-status.is-err{display:block;background:rgba(255,107,155,.12);border:1px solid rgba(255,107,155,.35);color:#ffc2d6}

/* ══ CTA 帯 ════════════════════════════════════════════════════ */
.cta-band{text-align:center;padding:70px 26px;border-radius:var(--radius-lg);
  background:linear-gradient(135deg,rgba(155,107,255,.22),rgba(90,215,255,.12));
  border:1px solid var(--glass-brd);position:relative;overflow:hidden}
.cta-band h2{font-size:clamp(24px,4.4vw,38px);margin:0 0 12px}
.cta-band p{color:var(--ink-dim);margin:0 0 26px}

/* ══ パンくず ══════════════════════════════════════════════════ */
.crumbs{font-size:12px;color:var(--ink-mute);padding:calc(var(--header-h) + 24px) 0 0}
.crumbs a{color:var(--ink-dim)} .crumbs a:hover{color:var(--accent)}
.crumbs span{margin:0 8px;opacity:.5}
.page-head{padding:26px 0 40px;text-align:center}
.page-head h1{font-size:clamp(28px,5vw,46px);margin:0 0 10px;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;display:inline-block}
.page-head p{color:var(--ink-dim);max-width:60ch;margin:0 auto}

/* ══ フッタ（site.js が注入） ══════════════════════════════════ */
.site-footer{margin-top:40px;border-top:1px solid var(--glass-brd);
  background:linear-gradient(180deg,rgba(15,8,32,0),rgba(10,5,20,.6));padding:56px 0 30px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;margin-bottom:34px}
.footer-brand .brand{margin-bottom:12px}
.footer-brand p{font-size:12.5px;color:var(--ink-mute);max-width:36ch}
.footer-col h4{font-size:12px;letter-spacing:.16em;color:var(--accent3);text-transform:uppercase;margin:0 0 14px}
.footer-col a{display:block;font-size:13px;color:var(--ink-dim);padding:5px 0}
.footer-col a:hover{color:var(--accent)}
.footer-social{display:flex;gap:10px;margin-top:14px}
.footer-social a{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;
  border:1px solid var(--glass-brd);background:var(--glass-hi);color:var(--ink-dim);font-size:16px}
.footer-social a:hover{color:var(--accent);border-color:var(--accent3);transform:translateY(-2px)}
.footer-legal{border-top:1px solid rgba(255,255,255,.06);padding-top:22px;font-size:11px;color:var(--ink-mute);line-height:1.9}
.footer-legal .links{margin-bottom:12px}
.footer-legal .links a{color:var(--ink-dim);margin-right:4px}
.footer-legal .links span{opacity:.4;margin:0 8px}
.footer-copy{margin-top:14px;letter-spacing:.06em}

/* ══ スクロール演出 ════════════════════════════════════════════ */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}.reveal.d5{transition-delay:.4s}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero-media img{transform:none}
  .scroll-cue{animation:none}
}
@keyframes fadein{from{opacity:0}to{opacity:1}}

/* ══ レスポンシブ ══════════════════════════════════════════════ */
@media (max-width:1023px){
  .footer-top{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .split{grid-template-columns:1fr;gap:26px}
  .split--rev .split-media{order:0}
}
@media (max-width:860px){
  .section{padding:70px 0}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .nav{position:fixed;inset:var(--header-h) 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:rgba(12,6,26,.97);backdrop-filter:blur(18px);padding:10px 16px 20px;
    border-bottom:1px solid var(--glass-brd);transform:translateY(-140%);transition:transform .35s var(--ease);
    max-height:calc(100svh - var(--header-h));overflow:auto}
  body.nav-open .nav{transform:none}
  .nav a{padding:14px 8px;font-size:15px;border-bottom:1px solid rgba(255,255,255,.05)}
  .nav a.is-active::after{display:none}
  .nav-cta{margin:14px 0 0}
  .btn-play{width:100%;justify-content:center;padding:14px}
  .nav-toggle{display:block}
  .char-modal-box{grid-template-columns:1fr}
  .char-modal-visual{min-height:260px;aspect-ratio:3/4;max-height:44svh}
}
@media (max-width:560px){
  .wrap{padding:0 16px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .char-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .footer-top{grid-template-columns:1fr}
  .news-item{flex-wrap:wrap;gap:8px}
  .news-date{width:auto}
  .news-title{flex-basis:100%;order:3}
  .hero{min-height:92svh}
}