:root{--paper-base: #F6F7F9;--paper-pure-white: #FFFFFF;--ink-primary: #373C46;--ink-secondary: #6B7280;--ink-tertiary: #9CA3AF;--ink-faint: #D1D5DB;--paper-highlight: rgba(255, 255, 255, .95);--paper-shadow-soft: rgba(160, 168, 182, .32);--paper-shadow-deep: rgba(130, 140, 160, .45);--mat-border-color: rgba(210, 216, 226, .7);--font-serif-en: "Cinzel", "Cormorant Garamond", Georgia, serif;--font-serif-ja: "Noto Serif JP", "Yu Mincho", serif;--font-sans: "Montserrat", -apple-system, BlinkMacSystemFont, sans-serif}body.room-theme-forest{--paper-base: #FAF8F5;--ink-primary: #463F36;--ink-secondary: #746B5F;--ink-tertiary: #A3998C;--paper-shadow-soft: rgba(185, 172, 155, .35);--paper-shadow-deep: rgba(155, 142, 125, .48);--mat-border-color: rgba(222, 212, 198, .8)}body.room-theme-forest .artwork-mat-board{border-radius:24px;border:2px solid var(--mat-border-color)}body.room-theme-stars{--paper-base: #F2F5F9;--ink-primary: #2C3545;--ink-secondary: #58657B;--ink-tertiary: #8796AC;--paper-shadow-soft: rgba(145, 162, 185, .38);--paper-shadow-deep: rgba(115, 135, 162, .52);--mat-border-color: rgba(198, 212, 230, .85)}body.room-theme-stars .artwork-mat-board{border-radius:0;border:1px solid var(--mat-border-color);outline:3px double var(--mat-border-color);outline-offset:4px}body.room-theme-water{--paper-base: #F1F7F8;--ink-primary: #2D3E47;--ink-secondary: #566E7A;--ink-tertiary: #849EAB;--paper-shadow-soft: rgba(138, 168, 180, .35);--paper-shadow-deep: rgba(110, 142, 158, .48);--mat-border-color: rgba(195, 220, 228, .8)}body.room-theme-water .artwork-mat-board{border-radius:4px;border-top:3px solid var(--mat-border-color);border-bottom:3px solid var(--mat-border-color);border-left:1px dashed var(--mat-border-color);border-right:1px dashed var(--mat-border-color)}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{width:100%;height:100%;overflow:hidden;background-color:var(--paper-base);color:var(--ink-primary);font-family:var(--font-serif-ja);-webkit-font-smoothing:antialiased;-webkit-user-select:none;user-select:none;transition:background-color .5s ease}.paper-grain-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;pointer-events:none;z-index:1;opacity:.35;background-image:radial-gradient(rgba(130,140,160,.28) .8px,transparent .8px);background-size:14px 14px}.deboss-text-title{color:var(--ink-primary);text-shadow:1px 1px 0px var(--paper-highlight),-1px -1px 1px var(--paper-shadow-deep);letter-spacing:.12em;font-weight:500}.deboss-text-sub{color:var(--ink-secondary);text-shadow:1px 1px 0px var(--paper-highlight),-.5px -.5px .5px var(--paper-shadow-soft);letter-spacing:.1em}.deboss-text-faint{color:var(--ink-tertiary);text-shadow:.5px .5px 0px var(--paper-highlight);letter-spacing:.08em}.paper-deboss-well{background-color:var(--paper-base);box-shadow:inset 3px 3px 7px var(--paper-shadow-soft),inset -3px -3px 7px var(--paper-highlight);border:1px solid var(--mat-border-color)}.paper-emboss-pill{background-color:var(--paper-base);box-shadow:3px 3px 8px var(--paper-shadow-soft),-3px -3px 8px var(--paper-highlight),inset 1px 1px 1px var(--paper-highlight);border:1px solid rgba(255,255,255,.85);transition:all .2s cubic-bezier(.16,1,.3,1)}.paper-emboss-pill:active,.paper-emboss-pill.active{box-shadow:inset 2px 2px 5px var(--paper-shadow-deep),inset -2px -2px 5px var(--paper-highlight);border-color:var(--mat-border-color);transform:translateY(1px)}.embossed-circle-btn{width:40px;height:40px;border-radius:50%;background-color:var(--paper-base);box-shadow:3px 3px 8px var(--paper-shadow-soft),-3px -3px 8px var(--paper-highlight);border:1px solid rgba(255,255,255,.9);display:inline-flex;align-items:center;justify-content:center;color:var(--ink-secondary);cursor:pointer;transition:all .2s ease}.embossed-circle-btn:active{box-shadow:inset 2px 2px 4px var(--paper-shadow-deep),inset -2px -2px 4px var(--paper-highlight);transform:scale(.96);color:var(--ink-primary)}.gallery-header{position:fixed;top:0;left:0;width:100%;height:72px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;z-index:30;background:linear-gradient(180deg,var(--paper-base) 80%,rgba(246,247,249,0) 100%)}.header-brand{display:flex;flex-direction:column}.brand-sub{font-family:var(--font-sans);font-size:7.5px;font-weight:600}.brand-title{font-family:var(--font-serif-en);font-size:22px;line-height:1.1}.room-nav{display:flex;align-items:center;gap:5px;overflow-x:auto;scrollbar-width:none}.room-nav::-webkit-scrollbar{display:none}.room-pill{padding:6px 12px;border-radius:18px;display:flex;align-items:center;gap:5px;cursor:pointer;font-family:var(--font-serif-ja);white-space:nowrap}.pill-icon{font-size:10px}.pill-label{font-size:11px}.header-actions{display:flex;align-items:center;gap:8px}.gallery-stage{position:relative;width:100vw;height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:10;padding-top:68px;padding-bottom:80px}.stage-container{width:100%;height:100%;overflow:hidden;position:relative}.artwork-track{display:flex;height:100%;transition:transform .55s cubic-bezier(.16,1,.3,1);will-change:transform}.artwork-slide{flex:0 0 100vw;width:100vw;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:10px 20px;opacity:.35;transform:scale(.93);transition:opacity .5s ease,transform .5s cubic-bezier(.16,1,.3,1)}.artwork-slide.active{opacity:1;transform:scale(1)}.artwork-mat-board{position:relative;max-width:86vw;max-height:50vh;padding:12px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .4s ease}.artwork-core-image{max-width:100%;max-height:calc(50vh - 24px);object-fit:contain;border-radius:2px;display:block;box-shadow:0 4px 14px #00000014;background:#fff}.artwork-caption-plate{margin-top:20px;display:flex;flex-direction:column;align-items:center;text-align:center;cursor:pointer;max-width:90vw;padding:6px 14px}.caption-room-badge{font-family:var(--font-sans);font-size:8.5px;font-weight:600;text-transform:uppercase;margin-bottom:5px;display:flex;align-items:center;gap:6px}.caption-artwork-title{font-size:18px;margin-bottom:4px}.caption-spec-line{font-family:var(--font-sans);font-size:10.5px;margin-bottom:8px}.caption-read-prompt{display:inline-flex;align-items:center;gap:6px;font-size:10px;padding:4px 12px;border-radius:12px}.stage-nav-controls{position:fixed;bottom:20px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:14px;z-index:20}.stage-counter-box{padding:7px 18px;border-radius:24px;display:flex;align-items:center;gap:6px;font-family:var(--font-sans);font-size:13px;letter-spacing:1px}.counter-current{font-weight:600;color:var(--ink-primary)}.counter-slash{color:var(--ink-faint)}.counter-total{color:var(--ink-tertiary)}.index-modal{position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:150;visibility:hidden;transition:visibility .35s ease}.index-modal.open{visibility:visible}.index-backdrop{position:absolute;top:0;left:0;width:100%;height:100%;background:#282d374d;backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px);opacity:0;transition:opacity .35s ease}.index-modal.open .index-backdrop{opacity:1}.index-sheet{position:absolute;bottom:0;left:0;width:100%;height:85vh;background-color:var(--paper-base);border-radius:28px 28px 0 0;box-shadow:0 -15px 40px #1e233226;border-top:1px solid rgba(255,255,255,.9);padding:14px 18px 30px;transform:translateY(100%);transition:transform .4s cubic-bezier(.16,1,.3,1);display:flex;flex-direction:column}.index-modal.open .index-sheet{transform:translateY(0)}.index-header{display:flex;align-items:center;justify-content:space-between;padding-bottom:10px;margin-bottom:10px}.index-title-group{display:flex;flex-direction:column}.index-sub{font-family:var(--font-sans);font-size:7.5px;font-weight:600}.index-title{font-family:var(--font-serif-en);font-size:18px}.index-filter-bar{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding-bottom:10px;margin-bottom:10px;border-bottom:1px solid var(--mat-border-color)}.index-filter-bar::-webkit-scrollbar{display:none}.index-filter-pill{padding:4px 10px;border-radius:14px;font-size:10px;font-family:var(--font-sans);font-weight:500;cursor:pointer;white-space:nowrap}.index-grid-container{flex:1;overflow-y:auto;display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:4px 2px 24px}.index-stamp-item{display:flex;flex-direction:column;align-items:center;cursor:pointer;border-radius:8px;padding:4px;transition:transform .15s ease}.index-stamp-item:active{transform:scale(.93)}.index-stamp-well{width:100%;aspect-ratio:1 / 1;border-radius:6px;padding:2px;display:flex;align-items:center;justify-content:center;margin-bottom:3px}.index-stamp-img{max-width:100%;max-height:100%;object-fit:cover;border-radius:3px}.index-stamp-title{font-size:8.5px;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;width:100%;display:block}.detail-drawer,.artist-modal{position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:100;visibility:hidden;transition:visibility .4s ease}.detail-drawer.open,.artist-modal.open{visibility:visible}.drawer-backdrop,.artist-backdrop{position:absolute;top:0;left:0;width:100%;height:100%;background:#2d323c40;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);opacity:0;transition:opacity .4s ease}.detail-drawer.open .drawer-backdrop,.artist-modal.open .artist-backdrop{opacity:1}.drawer-sheet{position:absolute;bottom:0;left:0;width:100%;max-height:82vh;background-color:var(--paper-base);border-radius:28px 28px 0 0;box-shadow:0 -15px 40px #282d3c1f;border-top:1px solid rgba(255,255,255,.9);padding:16px 24px 44px;transform:translateY(100%);transition:transform .45s cubic-bezier(.16,1,.3,1);overflow-y:auto}.detail-drawer.open .drawer-sheet{transform:translateY(0)}.drawer-handle-zone{width:100%;display:flex;justify-content:center;padding-bottom:16px;cursor:pointer}.drawer-handle-bar{width:40px;height:4px;border-radius:2px}.drawer-inner{display:flex;flex-direction:column;align-items:center;text-align:center}.drawer-room-tag{font-family:var(--font-sans);font-size:9px;font-weight:600;padding:4px 14px;border-radius:12px;margin-bottom:10px}.drawer-artwork-title{font-size:20px;margin-bottom:6px}.drawer-artwork-spec{font-family:var(--font-sans);font-size:11px;margin-bottom:16px}.drawer-ruler{width:40px;height:1px;background:var(--mat-border-color);box-shadow:0 1px 0 var(--paper-highlight);border:none;margin-bottom:20px}.drawer-story-text{font-size:13px;line-height:2;letter-spacing:.08em;color:var(--ink-primary);text-align:justify;max-width:480px;margin-bottom:26px}.drawer-shop-btn{text-decoration:none;font-family:var(--font-sans);font-size:12px;font-weight:500;padding:12px 28px;border-radius:24px;display:inline-flex;align-items:center;gap:8px;color:var(--ink-primary)}.artist-modal{z-index:160;display:flex;align-items:center;justify-content:center;padding:20px}.artist-sheet{position:relative;width:100%;max-width:380px;padding:34px 24px;border-radius:24px;background-color:var(--paper-base);box-shadow:8px 8px 24px var(--paper-shadow-soft),-8px -8px 24px var(--paper-highlight);border:1px solid rgba(255,255,255,.9);z-index:2;transform:scale(.93);opacity:0;transition:all .35s cubic-bezier(.16,1,.3,1)}.artist-modal.open .artist-sheet{transform:scale(1);opacity:1}.modal-close-btn{position:absolute;top:14px;right:14px}.artist-inner{display:flex;flex-direction:column;align-items:center;text-align:center}.artist-avatar-well{width:76px;height:76px;border-radius:50%;padding:4px;margin-bottom:14px}.artist-avatar-img{width:100%;height:100%;border-radius:50%;object-fit:cover}.artist-main-name{font-family:var(--font-serif-en);font-size:22px;margin-bottom:2px}.artist-role-tag{font-family:var(--font-sans);font-size:9px;font-weight:600;text-transform:uppercase;margin-bottom:14px}.artist-bio-body{font-size:12px;line-height:1.9;color:var(--ink-secondary);margin-bottom:22px}.artist-links-group{display:flex;flex-direction:column;gap:9px;width:100%}.artist-link-item{padding:10px 16px;border-radius:20px;display:flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;font-family:var(--font-sans);font-size:11px;font-weight:500;color:var(--ink-primary)}@media (min-width: 768px){.index-sheet{max-width:640px;height:75vh;left:50%;transform:translate(-50%,100%);border-radius:28px;bottom:30px}.index-modal.open .index-sheet{transform:translate(-50%)}.index-grid-container{grid-template-columns:repeat(6,1fr);gap:10px}.artwork-mat-board{max-width:60vw;max-height:56vh;padding:18px}.artwork-core-image{max-height:calc(56vh - 36px)}.drawer-sheet{max-width:580px;left:50%;transform:translate(-50%,100%);border-radius:28px;bottom:30px}.detail-drawer.open .drawer-sheet{transform:translate(-50%)}}