:root{--ink:#181818;--muted:#646464;--line:#d9d9d9;--paper:#fbfbfa;--soft:#f4f4f2;--gold:#c8a96e;--red:#e74b3c;--red-dark:#c0392b;--serif:'Noto Serif JP',serif;--sans:'Noto Sans JP',sans-serif;--max:1160px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;overflow-x:hidden}body{color:var(--ink);background:var(--paper);font-family:var(--sans);line-height:1.9;letter-spacing:.03em;overflow-x:hidden}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}.exhibition-page dl,.exhibition-page dt,.exhibition-page dd{margin:0;padding:0;border:0;color:inherit}.exhibition-page{font-size:16px;color:var(--ink);font-family:var(--sans);line-height:1.9;letter-spacing:.03em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;min-height:100vh;overflow-x:hidden;background:linear-gradient(90deg,rgba(0,0,0,.025) 1px,transparent 1px) 0 0/84px 84px,var(--paper)}.exhibition-header{height:92px;padding:0 48px;display:flex;align-items:center;justify-content:space-between;background:rgba(251,251,250,.94);border-bottom:1px solid rgba(0,0,0,.08);position:sticky;top:0;z-index:20;backdrop-filter:blur(18px);animation:headerReveal .7s ease both}.exhibition-logo{display:inline-grid;gap:4px;min-width:0;max-width:calc(100vw - 130px);font-family:var(--serif);font-size:1.08rem;font-weight:400;line-height:1.2;letter-spacing:.12em}.exhibition-logo span{min-width:0;overflow-wrap:anywhere}.exhibition-logo span:last-child{font-family:var(--sans);font-size:.66rem;font-weight:500;letter-spacing:.28em}.school-header{background:#fff;border-bottom:1px solid #e8e0d0;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100;box-shadow:0 2px 12px rgba(0,0,0,.05);-webkit-font-smoothing:auto;text-rendering:auto}.school-header .logo{font-family:var(--serif) 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54px;background:var(--paper)}.intro-grid{display:grid;grid-template-columns:minmax(0, 1fr) 58px;gap:48px;align-items:center}.intro-copy{max-width:780px}.intro-copy h2{font-family:var(--serif);font-size:clamp(2rem, 3.2vw, 3rem);font-weight:500;letter-spacing:.12em;line-height:1.45;margin-bottom:30px}.intro-copy p{color:#303030;font-family:var(--sans);font-size:18px;font-weight:300;line-height:2.05;margin-bottom:8px}.scroll-mark{height:140px;display:flex;align-items:center;justify-content:center;color:var(--muted)}.scroll-mark span{position:relative;display:inline-block;writing-mode:vertical-rl;font-size:.68rem;font-weight:600;letter-spacing:.34em}.scroll-mark span:after{content:'';position:absolute;left:50%;top:calc(100% + 16px);width:1px;height:52px;background:#a9a9a9;transform-origin:top;animation:scrollLine 1.8s ease-in-out infinite}.theme-section{padding:18px 0 72px}.theme-section-head{margin-bottom:22px}.theme-section-head h2{font-family:var(--serif);font-size:clamp(1.45rem, 2.2vw, 2rem);font-weight:500;letter-spacing:.14em;line-height:1.5}.theme-grid{display:grid;grid-template-columns:repeat(3,minmax(0, 1fr));gap:28px}.theme-card{position:relative;display:flex;flex-direction:column;min-height:420px;background:#fff;border:1px solid #bfbfbf;overflow:hidden;transition:transform .24s ease,box-shadow .24s ease;animation:cardReveal .72s ease both}.theme-card:hover{transform:translateY(-3px);box-shadow:0 18px 34px rgba(0,0,0,.08)}.theme-card:nth-child(2){animation-delay:.1s}.theme-card:nth-child(3){animation-delay:.2s}.theme-card.is-disabled{pointer-events:none;background:#f1f1ef;border-color:#d2d2cf;color:#8a8a86}.theme-card.is-disabled:before{content:'';display:block;aspect-ratio:4/4.7;background:linear-gradient(90deg,rgba(0,0,0,.035) 1px,transparent 1px) 0 0/42px 42px,#eeeeeb}.theme-card.is-disabled img{opacity:.48;filter:grayscale(1) contrast(.88)}.theme-card img{width:100%;aspect-ratio:4/4.7;object-fit:cover;transition:transform 1.2s ease}.theme-card:hover img{transform:scale(1.035)}.theme-status{position:absolute;top:0;right:0;z-index:2;min-width:104px;padding:9px 14px;background:rgba(23,23,23,.86);color:#fff;font-size:.68rem;font-weight:600;letter-spacing:.14em;text-align:center}.is-disabled .theme-status{background:rgba(94,94,94,.74)}.theme-number{position:absolute;top:22px;left:22px;z-index:2;font-size:1rem;font-weight:600;letter-spacing:.08em}.theme-number:after{content:'';display:block;width:20px;height:1px;margin-top:12px;background:currentColor}.theme-card-body{min-height:74px;padding:18px 22px;display:flex;align-items:center;justify-content:space-between;gap:20px;background:#fff}.theme-card h3{font-family:var(--serif);font-size:clamp(1.2rem, 1.9vw, 1.65rem);font-weight:500;line-height:1.4;letter-spacing:.08em}.exhibition-page .theme-round{margin-bottom:7px;font-family:var(--serif);font-size:1rem;font-weight:500;line-height:1.3;letter-spacing:.12em}.exhibition-page .theme-label-mini{margin-bottom:4px;color:#777;font-size:.68rem;font-weight:700;letter-spacing:.18em;line-height:1.2}.exhibition-page .theme-schedule{margin-top:6px;color:#8d8d89;font-size:.76rem;font-weight:600;letter-spacing:.12em;line-height:1.4}.theme-arrow{position:relative;width:38px;height:1px;background:#777;flex:0 0 auto;transition:transform .24s ease}.theme-arrow:after{content:'';position:absolute;right:0;top:-4px;width:9px;height:9px;border-top:1px solid #777;border-right:1px solid #777;transform:rotate(45deg)}.theme-card:hover .theme-arrow{transform:translateX(6px)}.exhibition-footer{width:min(var(--max), calc(100% - 96px));margin:0 auto;padding:22px 0 32px;border-top:1px solid var(--line);color:#777;font-size:.68rem;letter-spacing:.16em}@keyframes headerReveal{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes heroBackgroundDrift{from{background-position:0 0,50% center,0 0}to{background-position:0 0,54% center,0 0}}@keyframes 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