:root{
  --bg:#ffffff;
  --bg-tint:#fafafa;
  --bg-deep:#0e0a1a;        /* キーカラー深: ネオンと相性◎ */
  --ink:#1a1a22;
  --ink-dim:#6b6976;
  --line:#e8e6ee;
  --magenta:#d63384;        /* ディープマゼンタ (海遊館の深ブルー枠) */
  --magenta-deep:#9b1e60;
  --gold:#c7a35a;
  --cyan:#1ea7c4;           /* サブアクセント */
  --shadow-soft:0 20px 50px -25px rgba(20,10,40,.2);
  --shadow-card:0 10px 30px -15px rgba(20,10,40,.18);
  --serif:"Cormorant Garamond","Noto Serif JP",serif;
  --sans:"Inter","Noto Sans JP","Hiragino Kaku Gothic ProN",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:15px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 28px}

/* ===== UTILITY BAR (海遊館上部の細い言語/お知らせバーを模倣) ===== */
.utility{
  background:var(--bg-deep);color:#e8e3f5;
  font-size:11px;letter-spacing:.16em;
  padding:8px 28px;
  display:flex;justify-content:space-between;align-items:center;
}
.utility .left{display:flex;gap:18px}
.utility .left a:hover{color:var(--magenta)}
.utility .lang{display:flex;gap:12px}
.utility .lang a{opacity:.6}
.utility .lang a.active{opacity:1;color:var(--magenta)}
@media(max-width:680px){.utility .left{display:none}}

/* ===== NAVIGATION ===== */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 28px;max-width:1280px;margin:0 auto;
}
.brand{
  font-family:var(--serif);font-size:24px;letter-spacing:.18em;
  color:var(--bg-deep);font-weight:600;
}
.brand small{display:block;font-size:9px;letter-spacing:.4em;color:var(--ink-dim);margin-top:2px;font-family:var(--sans);font-weight:400}
.nav ul{display:flex;gap:28px;list-style:none}
.nav ul a{font-size:12px;letter-spacing:.16em;color:var(--ink);font-weight:500;position:relative;padding:6px 0}
.nav ul a:hover{color:var(--magenta)}
.nav ul a::after{
  content:"";position:absolute;bottom:0;left:50%;width:0;height:2px;
  background:var(--magenta);transition:.25s;transform:translateX(-50%);
}
.nav ul a:hover::after{width:100%}
.nav .cta{
  padding:12px 22px;border-radius:0;
  background:var(--magenta);color:#fff;font-size:12px;letter-spacing:.18em;
  transition:.2s;
}
.nav .cta:hover{background:var(--magenta-deep)}
@media(max-width:880px){
  .nav ul{display:none}
  .nav-inner{padding:14px 18px}
}

/* ===== HERO（海遊館の中央テーマコピー型） ===== */
.hero{
  position:relative;min-height:88svh;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
  background:
    radial-gradient(60% 50% at 50% 60%,rgba(214,51,132,.08),transparent 70%),
    linear-gradient(180deg,#fff 0%,#fbf7fa 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(90deg,transparent 0 80px,rgba(214,51,132,.04) 80px 81px);
}
.hero-inner{position:relative;text-align:center;padding:80px 24px;max-width:920px;z-index:2}
.hero .ribbon{
  display:inline-block;font-size:10px;letter-spacing:.4em;
  color:var(--magenta);margin-bottom:32px;
  padding-bottom:12px;border-bottom:1px solid var(--magenta);
}
.hero .theme-en{
  font-family:var(--serif);font-style:italic;font-weight:400;
  font-size:clamp(20px,2.4vw,30px);letter-spacing:.12em;
  color:var(--gold);margin-bottom:18px;
}
.hero h1{
  font-family:var(--serif);font-weight:500;
  font-size:clamp(44px,7vw,84px);
  line-height:1.1;letter-spacing:.04em;color:var(--bg-deep);
  margin-bottom:24px;
}
.hero h1 .em{font-style:italic;color:var(--magenta)}
.hero .jp-tagline{
  font-family:"Noto Serif JP",serif;font-weight:500;
  font-size:clamp(16px,2vw,22px);line-height:2;letter-spacing:.16em;
  color:var(--ink);margin-bottom:42px;
}
.hero .ctas{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:16px 32px;font-size:12px;letter-spacing:.22em;font-weight:500;
  border:1px solid transparent;transition:.25s;cursor:pointer;
}
.btn-primary{background:var(--magenta);color:#fff}
.btn-primary:hover{background:var(--magenta-deep);transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}

/* ===== QUICK NAV（海遊館の「eチケット/駐車状況」帯を模倣） ===== */
.quick-nav{
  background:var(--bg-tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:0;
}
.quick-nav ul{
  display:grid;grid-template-columns:repeat(4,1fr);list-style:none;
  max-width:1280px;margin:0 auto;
}
.quick-nav li{border-left:1px solid var(--line)}
.quick-nav li:last-child{border-right:1px solid var(--line)}
.quick-nav a{
  display:flex;align-items:center;gap:16px;padding:22px 24px;
  font-size:13px;letter-spacing:.1em;transition:.2s;
}
.quick-nav a:hover{background:#fff;color:var(--magenta)}
.quick-nav .icon{
  width:38px;height:38px;border-radius:50%;
  background:var(--magenta);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-style:italic;font-size:18px;flex-shrink:0;
}
.quick-nav .label small{display:block;font-size:10px;letter-spacing:.3em;color:var(--ink-dim);margin-top:2px;font-weight:400}
@media(max-width:880px){
  .quick-nav ul{grid-template-columns:repeat(2,1fr)}
  .quick-nav li:nth-child(3){border-left:none}
  .quick-nav a{padding:18px 16px;font-size:12px}
}

/* ===== SECTION COMMON ===== */
section{padding:120px 0;position:relative}
.section-head{text-align:center;margin-bottom:64px}
.section-head .label{
  display:inline-block;font-family:var(--serif);font-style:italic;
  font-size:14px;letter-spacing:.3em;color:var(--magenta);margin-bottom:14px;
}
.section-head h2{
  font-family:"Noto Serif JP",serif;font-weight:500;
  font-size:clamp(28px,4vw,42px);line-height:1.4;letter-spacing:.12em;color:var(--bg-deep);
}
.section-head .lead{
  max-width:580px;margin:22px auto 0;color:var(--ink-dim);font-size:14px;line-height:2;
}

/* ===== PICK UP（海遊館のPICK UPセクション） ===== */
.pickup{background:#fff}
.pickup-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:32px;
}
@media(max-width:880px){.pickup-grid{grid-template-columns:1fr;gap:24px}}
.pickup-card{
  background:#fff;border:1px solid var(--line);overflow:hidden;
  transition:.3s;box-shadow:var(--shadow-card);
}
.pickup-card:hover{transform:translateY(-6px);border-color:var(--magenta)}
.pickup-card .thumb{
  aspect-ratio:5/3;background:linear-gradient(135deg,#3a1f4a,#d63384);
  position:relative;overflow:hidden;
}
.pickup-card .thumb::after{
  content:attr(data-label);position:absolute;left:18px;top:18px;
  background:#fff;color:var(--magenta);padding:4px 12px;font-size:10px;letter-spacing:.2em;
}
.pickup-card .thumb.t2{background:linear-gradient(135deg,#1a1a2e,#9b1e60)}
.pickup-card .thumb.t3{background:linear-gradient(135deg,#c7a35a,#1ea7c4)}
.pickup-card .body{padding:28px 24px}
.pickup-card .date{font-size:11px;letter-spacing:.2em;color:var(--ink-dim);margin-bottom:8px}
.pickup-card h3{font-family:"Noto Serif JP",serif;font-size:19px;font-weight:500;line-height:1.6;margin-bottom:10px}
.pickup-card p{font-size:13px;color:var(--ink-dim);line-height:1.8}
.pickup-card .more{
  display:inline-block;margin-top:18px;font-size:11px;letter-spacing:.24em;color:var(--magenta);
  padding-bottom:3px;border-bottom:1px solid var(--magenta);
}

/* ===== ABOUT 海遊館の「ご利用案内」的シンプル説明帯 ===== */
.about{background:var(--bg-tint)}
.about-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:80px;align-items:center}
@media(max-width:880px){.about-grid{grid-template-columns:1fr;gap:40px}}
.about-visual{
  aspect-ratio:4/5;position:relative;overflow:hidden;
  background:linear-gradient(135deg,#1a0e2e 0%,#3a1f4a 50%,#d63384 100%);
}
.about-visual::after{
  content:"ENKELADOS";position:absolute;bottom:32px;left:32px;color:#fff;
  font-family:var(--serif);font-style:italic;font-size:32px;letter-spacing:.18em;
}
.about-visual::before{
  content:"Studio";position:absolute;top:32px;right:32px;color:rgba(255,255,255,.5);
  font-family:var(--serif);font-style:italic;font-size:18px;letter-spacing:.2em;
}
.about-text .label{font-family:var(--serif);font-style:italic;font-size:14px;color:var(--magenta);letter-spacing:.3em;margin-bottom:14px}
.about-text h2{font-family:"Noto Serif JP",serif;font-weight:500;font-size:clamp(26px,3.4vw,38px);line-height:1.6;letter-spacing:.08em;color:var(--bg-deep);margin-bottom:28px}
.about-text p{color:var(--ink);font-size:15px;line-height:2.1;margin-bottom:18px}
.about-text .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px;list-style:none}
.about-text .tags li{font-size:11px;letter-spacing:.16em;color:var(--ink-dim);padding:6px 14px;border:1px solid var(--line);border-radius:999px;background:#fff}

/* ===== 図鑑 GRID（海遊館「生きもの図鑑」を模倣→LESSON図鑑） ===== */
.zukan{background:#fff}
.zukan-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:var(--line);border:1px solid var(--line)}
@media(max-width:880px){.zukan-grid{grid-template-columns:repeat(2,1fr)}}
.zukan-card{
  background:#fff;padding:36px 22px;text-align:center;transition:.25s;cursor:pointer;
  position:relative;
}
.zukan-card:hover{background:var(--bg-tint);transform:scale(1.02);z-index:2;box-shadow:var(--shadow-card)}
.zukan-card .ill{
  width:80px;height:80px;border-radius:50%;margin:0 auto 18px;
  background:linear-gradient(135deg,var(--magenta),var(--gold));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-family:var(--serif);font-style:italic;font-size:30px;
  box-shadow:0 8px 18px -8px rgba(214,51,132,.5);
}
.zukan-card .jp{font-family:"Noto Serif JP",serif;font-size:16px;font-weight:500;margin-bottom:4px;color:var(--bg-deep)}
.zukan-card .en{font-family:var(--serif);font-style:italic;font-size:11px;letter-spacing:.2em;color:var(--ink-dim)}
.zukan-card .day{
  display:inline-block;margin-top:14px;padding:3px 10px;font-size:10px;letter-spacing:.2em;
  background:var(--bg-tint);color:var(--magenta);border-radius:999px;
}

/* ===== SCHEDULE（海遊館の「お食事タイム」テーブル風） ===== */
.schedule{background:var(--bg-tint)}
.sched-table{
  width:100%;max-width:920px;margin:0 auto;
  background:#fff;border-collapse:collapse;font-size:13px;
  box-shadow:var(--shadow-card);
}
.sched-table th,.sched-table td{padding:16px 14px;text-align:left;border-bottom:1px solid var(--line)}
.sched-table th{background:var(--bg-deep);color:#fff;font-size:11px;letter-spacing:.2em;font-weight:500}
.sched-table tr:last-child td{border-bottom:none}
.sched-table tr:hover td{background:#fdf4f8}
.sched-table .day{color:var(--magenta);font-family:var(--serif);font-style:italic;font-size:18px;width:80px}
.sched-table .time{color:var(--bg-deep);font-weight:500;width:140px}
.sched-table .class{color:var(--bg-deep)}
.sched-table .teacher{color:var(--ink-dim);font-size:12px;width:160px;text-align:right}
@media(max-width:680px){
  .sched-table th:nth-child(4),.sched-table td:nth-child(4){display:none}
  .sched-table th,.sched-table td{padding:14px 10px}
}

/* ===== NEWS（海遊館「お知らせ」リスト型） ===== */
.news{background:#fff}
.news-list{max-width:920px;margin:0 auto;list-style:none}
.news-list li{
  display:grid;grid-template-columns:120px 100px 1fr;gap:24px;
  padding:24px 16px;border-bottom:1px solid var(--line);align-items:center;
  transition:.2s;
}
.news-list li:hover{background:var(--bg-tint);padding-left:24px}
.news-list .date{font-family:var(--serif);font-style:italic;font-size:15px;color:var(--ink-dim)}
.news-list .cat{font-size:10px;letter-spacing:.2em;padding:5px 12px;border:1px solid var(--magenta);color:var(--magenta);text-align:center}
.news-list .ttl{font-size:14px;color:var(--ink)}
.news-list a:hover .ttl{color:var(--magenta)}
@media(max-width:680px){
  .news-list li{grid-template-columns:1fr;gap:6px;padding:18px 8px}
  .news-list .cat{justify-self:start}
}

/* ===== RENTAL（バナー2枚並列の海遊館モデル） ===== */
.rental-band{background:var(--bg-tint)}
.banner-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media(max-width:880px){.banner-grid{grid-template-columns:1fr}}
.banner{
  position:relative;aspect-ratio:16/9;overflow:hidden;color:#fff;
  display:flex;align-items:flex-end;padding:40px;transition:.3s;
}
.banner:hover{transform:translateY(-4px);box-shadow:var(--shadow-soft)}
.banner.b1{background:linear-gradient(135deg,#1a0e2e,#9b1e60)}
.banner.b2{background:linear-gradient(135deg,#0e1a2e,#1ea7c4)}
.banner::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:32px 32px;
}
.banner-inner{position:relative;z-index:2}
.banner .label{font-family:var(--serif);font-style:italic;font-size:13px;letter-spacing:.3em;opacity:.8;margin-bottom:10px}
.banner h3{font-family:"Noto Serif JP",serif;font-weight:500;font-size:24px;line-height:1.5;letter-spacing:.06em;margin-bottom:8px}
.banner p{font-size:12px;opacity:.85;line-height:1.8}
.banner .arrow{
  position:absolute;right:30px;bottom:30px;width:42px;height:42px;border-radius:50%;
  background:#fff;color:var(--bg-deep);display:flex;align-items:center;justify-content:center;
  font-size:20px;transition:.2s;
}
.banner:hover .arrow{background:var(--magenta);color:#fff}

/* ===== ACCESS ===== */
.access{background:#fff}
.access-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:center;max-width:1080px;margin:0 auto}
@media(max-width:880px){.access-grid{grid-template-columns:1fr}}
.info-list{list-style:none}
.info-list li{display:grid;grid-template-columns:100px 1fr;gap:18px;padding:20px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink)}
.info-list .label{font-family:var(--serif);font-style:italic;font-size:13px;letter-spacing:.2em;color:var(--magenta)}
.map-embed{aspect-ratio:4/3;overflow:hidden;border:1px solid var(--line);background:var(--bg-tint)}
.map-embed iframe{width:100%;height:100%;border:0}

/* ===== CTA BAND ===== */
.cta-band{
  background:var(--bg-deep);color:#fff;text-align:center;
  padding:100px 24px;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(60% 70% at 50% 0%,rgba(214,51,132,.3),transparent 70%);
}
.cta-band .inner{position:relative;z-index:2;max-width:680px;margin:0 auto}
.cta-band .label{font-family:var(--serif);font-style:italic;font-size:14px;letter-spacing:.3em;color:var(--gold);margin-bottom:18px;display:block}
.cta-band h2{font-family:"Noto Serif JP",serif;font-weight:500;font-size:clamp(28px,4vw,42px);line-height:1.6;letter-spacing:.12em;margin-bottom:14px}
.cta-band p{color:#c8c2d6;margin-bottom:36px;font-size:14px;line-height:2}
.cta-band .btn-primary{background:var(--magenta)}
.cta-band .btn-primary:hover{background:#fff;color:var(--bg-deep)}

/* ===== FOOTER ===== */
footer{background:#fff;border-top:1px solid var(--line);padding:60px 28px 32px;color:var(--ink-dim);font-size:12px}
footer .foot-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
@media(max-width:880px){footer .foot-grid{grid-template-columns:1fr 1fr;gap:32px}}
footer h4{font-family:var(--serif);font-style:italic;font-size:13px;letter-spacing:.2em;color:var(--bg-deep);margin-bottom:18px;font-weight:500}
footer ul{list-style:none}
footer ul li{margin-bottom:10px;font-size:12px;letter-spacing:.05em}
footer ul a:hover{color:var(--magenta)}
footer .brand-block .brand{color:var(--bg-deep)}
footer .brand-block p{font-size:11px;line-height:1.9;margin-top:14px}
footer .sns{display:flex;gap:10px;margin-top:18px}
footer .sns a{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:11px;letter-spacing:.1em;
}
footer .sns a:hover{border-color:var(--magenta);color:var(--magenta)}
footer .copy{text-align:center;padding-top:24px;border-top:1px solid var(--line);font-size:11px;letter-spacing:.1em}