.silhouette-game-page{background:var(--yk-game-page-background);color-scheme:dark;isolation:isolate}.silhouette-game-page:before{position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;pointer-events:none;content:"";opacity:.18;background-image:var(--yk-game-grain)}.silhouette-game-stage{background:var(--yk-game-paper-background);box-shadow:var(--yk-game-paper-shadow)}.silhouette-game-stage:after{position:absolute;top:12px;right:12px;bottom:12px;left:12px;pointer-events:none;content:"";border:1px solid var(--yk-game-paper-frame)}.silhouette-game-shoji{position:absolute;top:12px;right:12px;bottom:12px;left:12px;z-index:2;pointer-events:none;opacity:.72;background-image:var(--yk-game-shoji-pattern);background-size:42px 42px,42px 42px,100% 100%;box-shadow:var(--yk-game-shoji-shadow)}.silhouette-game-seal{animation:silhouette-seal-turn 28s linear infinite}.silhouette-game-figure{animation:silhouette-figure-float 5.5s ease-in-out infinite;transform:translateZ(0);will-change:transform}.silhouette-game-figure img{transition:filter .7s cubic-bezier(.16,1,.3,1),opacity .5s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}.silhouette-game-figure img[data-revealed=false],.silhouette-game-figure img[data-revealed=true]{filter:none;opacity:1;transform:scale(1)}.silhouette-game-locked-figure{clip-path:polygon(48% 0,60% 8%,64% 25%,81% 41%,71% 53%,88% 78%,62% 76%,56% 100%,39% 100%,34% 75%,10% 79%,25% 54%,15% 41%,35% 24%,39% 7%);animation:silhouette-figure-float 5.5s ease-in-out infinite;transform:translateZ(0)}@keyframes silhouette-seal-turn{to{transform:rotate(360deg)}}@keyframes silhouette-figure-float{0%,to{transform:translateZ(0)}50%{transform:translate3d(0,-6px,0)}}@media(prefers-reduced-motion:reduce){.silhouette-game-seal,.silhouette-game-figure,.silhouette-game-locked-figure{animation:none}.silhouette-game-figure img{transition-duration:.01ms}}.silhouette-start{--scene-x:50%;color:var(--ys-cream);color-scheme:dark;background:var(--ys-canvas)}.ys-stage{position:relative;isolation:isolate;display:grid;place-items:center;min-height:calc(100svh - 80px);padding:28px 14px}.ys-scene,.ys-night{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:-2}.ys-scene{background:var(--ys-canvas) url(/images/game/start/01_moonlit_garden.webp) var(--scene-x) center/cover no-repeat}.ys-night{z-index:-1;background:var(--ys-night)}.ys-card{position:relative;isolation:isolate;width:min(480px,100%);min-height:0;display:flex;animation:silhouette-start-arrive .38s ease-out both}.ys-shade{position:absolute;top:5%;right:6%;bottom:4%;left:6%;z-index:0;pointer-events:none;border-radius:38px;background:var(--ys-shade)}.ys-frame{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;z-index:2;pointer-events:none;-webkit-user-select:none;user-select:none}.ys-frame-top,.ys-frame-bottom{display:block;width:100%;height:auto;flex:0 0 auto}.ys-frame-middle{position:relative;flex:1 1 auto;min-height:0}.ys-frame-middle img{position:absolute;top:0;right:0;bottom:0;left:0;display:block;width:100%;height:100%}.ys-content{position:relative;z-index:1;width:100%;padding:15% 10.5% 10%;display:flex;flex-direction:column}.ys-title{font-family:Hiragino Mincho ProN,Yu Mincho,"Noto Serif CJK JP",serif;font-size:clamp(1.5rem,5vw,1.8rem);font-weight:600;line-height:1.5;letter-spacing:.01em;margin:0 0 14px;padding-inline:clamp(12px,3vw,20px);text-shadow:0 2px 18px var(--ys-title-shadow)}.ys-title span{display:block}.ys-description{font-family:Hiragino Mincho ProN,Yu Mincho,"Noto Serif CJK JP",serif;color:var(--ys-body);font-size:.8125rem;line-height:1.95;margin:0;text-shadow:0 1px 7px var(--ys-body-shadow)}.ys-features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin-top:auto;padding:30px 0 22px}.ys-feature{text-align:center;min-width:0;padding:0 3px}.ys-feature+.ys-feature{border-left:1px solid var(--ys-divider)}.ys-feature img{display:block;width:44px;height:44px;object-fit:contain;margin:0 auto 8px}.ys-feature p{margin:0;color:var(--ys-feature);font-size:.73rem;line-height:1.8}.ys-start{display:flex;align-items:center;justify-content:center;gap:14px;width:100%;min-height:52px;padding:13px 10px;border:1px solid var(--ys-button-border);border-radius:6px;color:var(--ys-button-text);font-size:.875rem;font-weight:750;background:var(--ys-button);box-shadow:0 0 22px var(--ys-button-glow);cursor:pointer;transition:filter .15s ease,transform .15s ease}.ys-start:hover{filter:brightness(1.07)}.ys-start:active{transform:translateY(1px)}.ys-start:focus-visible{outline:3px solid var(--ys-focus);outline-offset:5px}.ys-arrow{flex:0 0 auto;font-size:1.2em}.ys-reassurance{margin:12px 0 0;text-align:center;font-size:.6875rem;line-height:1.8;color:var(--ys-hint)}.ys-quote{font-family:Hiragino Mincho ProN,Yu Mincho,"Noto Serif CJK JP",serif;text-align:center;font-size:.75rem;line-height:1.9;letter-spacing:.03em;color:var(--ys-quote);margin:22px 0 0}@keyframes silhouette-start-arrive{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@media(max-width:600px){.silhouette-start{--scene-x:78%}.ys-stage{padding:12px}.ys-description{font-size:.75rem}.ys-feature img{width:40px;height:40px}.ys-features{padding-top:26px;padding-bottom:20px}.ys-quote{margin-top:18px}}@media(prefers-reduced-motion:reduce){.ys-card{animation:none}.ys-start{transition:none}}.ys-description,.ys-feature p,.ys-title{white-space:pre-line}.ys-start:disabled{cursor:not-allowed;opacity:.65}.ys-title{overflow-wrap:anywhere}.ys-content form{margin:0}.ys-back{position:absolute;top:12px;left:max(20px,calc((100% - 1120px)/2));z-index:3;display:inline-flex;align-items:center;min-height:44px;color:var(--ys-cream);font-size:.8rem;text-underline-offset:5px}.ys-back:hover{text-decoration:underline}.ys-back:focus-visible{outline:2px solid var(--ys-focus);outline-offset:3px}.ys-stage{padding-top:56px}.ys-economy{margin:20px 0 16px;padding-block:12px;border-block:1px solid var(--ys-divider);color:var(--ys-body);font-size:.75rem;line-height:1.6}.ys-economy>p{margin:6px 0}.ys-economy>p:first-child{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 12px;color:var(--ys-cream)}.ys-economy summary{cursor:pointer;text-decoration:underline;text-underline-offset:3px}.ys-economy summary:focus-visible{outline:2px solid var(--ys-focus);outline-offset:3px}.ys-economy details p{margin-top:8px}.ys-admission-error{margin-bottom:12px;color:var(--ys-cream);font-size:.8rem;line-height:1.6}.ys-stage{align-content:center;row-gap:18px}.ys-personal-links{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:4px 28px;width:min(480px,100%);padding:0 12px;text-align:center}.ys-personal-links a{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:8px 0;font-size:13px;color:var(--ys-feature);text-decoration:none}.ys-personal-links a:focus-visible{outline:2px solid var(--ys-focus);outline-offset:4px;border-radius:4px}@media(hover:hover)and (pointer:fine){.ys-personal-links a:hover{color:var(--ys-cream);text-decoration:underline;text-underline-offset:5px}}