:root{--c:#00b3d3;--cd:#0089a3;--mint:#d5f7e0;--ink:#0f5f70;--jp:'Zen Kaku Gothic New','Yu Gothic',sans-serif;--en:'Montserrat','Zen Kaku Gothic New',sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font-family:var(--jp);font-size:15px;line-height:2.1;letter-spacing:.08em;-webkit-text-size-adjust:100%}
img{display:block;max-width:100%;height:auto}a{color:var(--cd)}
:focus-visible{outline:2px solid var(--c);outline-offset:3px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.notice{margin:0;background:var(--c);color:#fff;font-size:12px;text-align:center;padding:5px 12px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:99}
.hd{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.96)}
.hd .wrap{display:flex;align-items:center;justify-content:space-between;min-height:80px;max-width:1320px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--c);min-height:48px}
.logo svg{width:40px;height:40px}
.logo b{font-family:var(--en);font-weight:500;font-size:20px;letter-spacing:.3em;line-height:1.2;display:block}
.logo small{display:block;font-size:12px;letter-spacing:.14em;color:var(--ink)}
.gn ul{list-style:none;margin:0;padding:0;display:flex}
.gn a{display:flex;align-items:center;min-height:48px;padding:0 13px;text-decoration:none;color:var(--c);font-family:var(--en);font-size:13px;letter-spacing:.14em;position:relative}
.gn a::before{content:"";position:absolute;left:50%;bottom:8px;width:5px;height:5px;border-radius:50%;background:var(--c);transform:translateX(-50%) scale(0);transition:transform .3s}
.gn a:hover::before,.gn a[aria-current=page]::before{transform:translateX(-50%) scale(1)}
.mb{display:none}
/* hero */
.hero{display:grid;grid-template-columns:340px 1fr;gap:40px;max-width:1320px;margin:0 auto;padding:24px 24px 0;align-items:end}
.hero .txt{padding-bottom:40px}
.hero h1{font-weight:500;font-size:clamp(22px,2.4vw,30px);letter-spacing:.16em;line-height:1.9;color:var(--c);margin:0 0 .8em}
.hero .slides{position:relative;aspect-ratio:16/10;border-radius:0 0 0 160px;overflow:hidden}
.hero .slides img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;animation:sl 18s infinite}
.hero .slides img:nth-child(2){animation-delay:6s}.hero .slides img:nth-child(3){animation-delay:12s}
@keyframes sl{0%{opacity:0;transform:scale(1.12)}6%{opacity:1}33%{opacity:1}40%{opacity:0;transform:scale(1)}100%{opacity:0}}
.hero .slides img:first-child{opacity:1;animation-name:sl1}
@keyframes sl1{0%{opacity:1;transform:scale(1.12)}33%{opacity:1}40%{opacity:0;transform:scale(1)}94%{opacity:0;transform:scale(1.12)}100%{opacity:1}}
.badge{margin:10px;display:inline-grid;place-items:center;width:120px;height:120px;border-radius:50%;border:1px solid var(--c);text-decoration:none;color:var(--c);font-family:var(--en);font-size:12px;letter-spacing:.14em;text-align:center;line-height:1.5;position:relative;transition:background .4s,color .4s}
.badge::after{content:"";position:absolute;inset:-8px;border:1px dashed var(--c);border-radius:50%;animation:spin 20s linear infinite;opacity:.5}
@keyframes spin{to{transform:rotate(360deg)}}
.badge:hover{background:var(--c);color:#fff}
.badge span{display:block;font-family:var(--jp);font-size:12px}
section{padding:clamp(80px,11vw,150px) 0;position:relative}
.mint{background:var(--mint)}
.hello{text-align:center;max-width:720px;margin:0 auto}
.hello .en{font-family:var(--en);font-weight:300;letter-spacing:.4em;color:var(--c);font-size:14px}
.hello h2{font-weight:500;color:var(--c);font-size:clamp(22px,2.8vw,30px);letter-spacing:.2em;margin:.4em 0 1em}
.wide{overflow:hidden}.wide img{width:100%;height:clamp(240px,40vw,520px);object-fit:cover}
.vt{display:grid;grid-template-columns:auto 1fr;gap:clamp(32px,6vw,96px);align-items:start}
.vh{writing-mode:vertical-rl;margin:0;font-weight:500;color:var(--c);font-size:clamp(24px,2.8vw,32px);letter-spacing:.3em;line-height:1.6;position:sticky;top:120px}
.vh small{font-family:var(--en);font-weight:300;font-size:12px;letter-spacing:.3em;margin-top:1em;display:block}
.zig{display:grid;gap:80px}
.zig article{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:center}
.zig article:nth-child(even){grid-template-columns:1fr 300px}
.zig article:nth-child(even)>img{order:2}
.zig img{width:300px;height:300px;border-radius:50%;object-fit:cover}
h3{font-weight:500;color:var(--c);font-size:20px;letter-spacing:.14em;margin:0 0 .5em;line-height:1.6}
h3 .n{font-family:var(--en);font-weight:300;font-size:13px;letter-spacing:.3em;display:block}
.ttl{text-align:center;margin-bottom:56px}
.ttl .en{display:block;font-family:var(--en);font-weight:300;font-size:clamp(26px,3.4vw,40px);letter-spacing:.3em;color:var(--c);line-height:1.3}
.ttl h2{font-weight:400;font-size:14px;letter-spacing:.2em;margin:.4em 0 0}
/* floor map */
.floors{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.floor{border:1px solid var(--c);border-radius:24px;padding:24px;background:#fff}
.floor b{font-family:var(--en);font-weight:500;color:var(--c);letter-spacing:.2em;font-size:18px}
.floor svg{width:100%;height:auto;color:var(--c)}
.floor .ln{stroke-dasharray:1400;stroke-dashoffset:1400;transition:stroke-dashoffset 2.4s ease}
.floor.is-in .ln{stroke-dashoffset:0}
.floor ol{margin:12px 0 0;padding-left:1.4em;font-size:14px}
/* exhibitions */
.exh{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.exh article{border-top:1px solid var(--c);padding-top:18px}
.exh time{font-family:var(--en);font-size:13px;color:var(--c);letter-spacing:.1em}
.exh .now{display:inline-block;background:var(--c);color:#fff;font-size:12px;border-radius:999px;padding:0 12px;margin-left:8px}
/* menu */
.mgrid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.tbl{width:100%;border-collapse:collapse}
.tbl caption{text-align:left;font-family:var(--en);font-weight:500;letter-spacing:.2em;color:var(--c);font-size:18px;padding-bottom:10px}
.tbl caption span{font-family:var(--jp);font-size:13px;letter-spacing:.1em;margin-left:10px;color:var(--ink)}
.tbl th,.tbl td{padding:14px 8px;border-bottom:1px dotted var(--c);text-align:left;vertical-align:top}
.tbl th{font-weight:500}.tbl th small{display:block;font-weight:400;font-size:12.5px;opacity:.8}
.tbl td.p{font-family:var(--en);text-align:right;white-space:nowrap}
.al{display:inline-flex;gap:4px;margin-left:6px;vertical-align:1px}
.al i{font-style:normal;font-size:12px;border:1px solid var(--c);color:var(--cd);border-radius:999px;padding:0 7px;line-height:1.6}
.photo-r{width:100%;aspect-ratio:1;border-radius:50%;object-fit:cover}
/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.cards article{text-align:center}
.cards img{width:220px;height:220px;border-radius:50%;object-fit:cover;margin:0 auto 20px;transition:transform .6s}
.cards article:hover img{transform:scale(1.05)}
.meta{font-size:13.5px;margin:.2em 0}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:56px;padding:0 40px;border-radius:999px;background:var(--c);color:#fff;text-decoration:none;letter-spacing:.14em;transition:background .3s}
.btn:hover{background:var(--cd)}
.btn.o{background:#fff;color:var(--c);border:1px solid var(--c)}
.center{text-align:center}
.box{border:1px solid var(--c);border-radius:24px;padding:32px}
.faq{max-width:860px;margin:0 auto}
.faq details{border-bottom:1px solid var(--c)}
.faq summary{list-style:none;cursor:pointer;display:flex;gap:16px;align-items:center;padding:18px 4px;min-height:64px;font-weight:500}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";font-family:var(--en);color:var(--c);font-size:20px}
.faq summary::after{content:"";margin-left:auto;flex:none;width:18px;height:18px;border-radius:50%;border:1px solid var(--c);background:linear-gradient(var(--c),var(--c)) center/8px 1px no-repeat,linear-gradient(var(--c),var(--c)) center/1px 8px no-repeat;transition:transform .3s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .a{margin:0;padding:0 8px 22px 36px}
.pg{padding:64px 0 40px}
.pg .wrap{display:grid;grid-template-columns:auto 1fr;gap:48px;align-items:end}
.pg h1{writing-mode:vertical-rl;margin:0;font-weight:500;color:var(--c);font-size:clamp(26px,3vw,34px);letter-spacing:.3em}
.pg .en{font-family:var(--en);font-weight:300;letter-spacing:.3em;color:var(--c)}
.crumb{font-size:12.5px;margin:0}.crumb a{display:inline-flex;align-items:center;min-height:44px;min-width:48px}
.pending{background:#fff7dc;color:#5a4300;padding:12px 16px;border-radius:12px;font-size:14px}
.ft{border-top:1px solid var(--c);padding:72px 0 120px;font-size:14px}
.ft .wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.ft .big{font-family:var(--en);font-weight:300;font-size:clamp(40px,7vw,88px);letter-spacing:.24em;color:var(--c);line-height:1;margin:0 0 20px}
.ft ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap}
.ft li a{display:inline-flex;align-items:center;min-height:44px;padding:0 10px;font-family:var(--en);letter-spacing:.14em;text-decoration:none}
.copy{grid-column:1/-1;font-family:var(--en);font-size:12px;margin:0}
.fixed{display:none}
@media (max-width:980px){
 .gn{position:absolute;top:100%;left:0;right:0;background:#fff;display:none;padding:8px 24px 24px;border-bottom:1px solid var(--c)}
 .gn.open{display:block}.gn ul{flex-direction:column}
 .mb{display:inline-flex;align-items:center;justify-content:center;min-width:64px;min-height:48px;border:1px solid var(--c);border-radius:999px;background:#fff;color:var(--c);font-family:var(--en);letter-spacing:.2em;font-size:13px}
 .hero{grid-template-columns:1fr}.hero .txt{order:2;padding-bottom:0}.hero .slides{border-radius:0 0 0 80px}
 .vt{grid-template-columns:1fr}.vh{writing-mode:horizontal-tb;position:static}
 .zig article,.zig article:nth-child(even){grid-template-columns:1fr;text-align:center}
 .zig article:nth-child(even)>img{order:0}.zig img{margin:0 auto;width:240px;height:240px}
 .floors,.exh,.mgrid,.cards,.ft .wrap{grid-template-columns:1fr}
 .photo-r{max-width:320px;margin:0 auto}
 .pg .wrap{grid-template-columns:1fr}.pg h1{writing-mode:horizontal-tb}
 .fixed{display:grid;grid-template-columns:1fr 1fr;gap:8px;position:fixed;left:0;right:0;bottom:0;z-index:50;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.96);border-top:1px solid var(--c)}
 .fixed .btn{padding:0 12px}
}

html,body{overflow-x:clip}
.js [data-rv]{opacity:0;transition:opacity 1s cubic-bezier(.165,.84,.44,1),transform 1s cubic-bezier(.165,.84,.44,1),filter 1s ease}
.js [data-rv=up]{transform:translateY(32px)}
.js [data-rv=left]{transform:translateX(-40px)}
.js [data-rv=right]{transform:translateX(40px)}
.js [data-rv=pop]{transform:scale(.85);transition-timing-function:cubic-bezier(.34,1.56,.64,1)}
.js [data-rv=blur]{filter:blur(12px)}
.js [data-rv=flip]{transform:perspective(600px) rotateX(70deg);transform-origin:50% 0}
@media (max-width:860px){.js [data-rv=left],.js [data-rv=right]{transform:translateY(32px)}}
.js [data-rv].is-in{opacity:1;transform:none;filter:none}
[data-d="1"]{transition-delay:.12s!important}[data-d="2"]{transition-delay:.24s!important}[data-d="3"]{transition-delay:.36s!important}[data-d="4"]{transition-delay:.48s!important}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}.js [data-rv]{opacity:1;transform:none;filter:none}}


/* ===== 改行と文の切り方（日本語の折り返しを整える） ===== */
body {
  word-break: auto-phrase;      /* 言葉のかたまりで折り返し、言葉の途中で切らない（対応ブラウザー） */
  line-break: strict;           /* 句読点や「ー」を行の頭に置かない */
}
h1, h2, h3, h4 { text-wrap: balance; }   /* 複数行のとき行の長さをそろえる */
p, li, dd, td, figcaption, blockquote { text-wrap: pretty; }   /* 最後の行に1〜2文字だけ残るのを防ぐ */
.nobr { display: inline-block; }
@media (max-width: 767px) { .pc-only { display: none; } }