:root{color-scheme:dark;--ink:#101d30;--panel:#192a40;--mint:#a2f4ce;--cream:#f7f0df;--muted:#b3c2d3;--line:#304155;--coral:#ff858d;font-family:"Noto Sans JP","Yu Gothic",Meiryo,system-ui,sans-serif;font-size:16px;background:var(--ink);color:var(--cream)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:2rem}body{margin:0}a{color:inherit;text-underline-offset:.24em}a:hover{color:var(--mint)}a:focus-visible,summary:focus-visible{outline:3px solid var(--mint);outline-offset:5px}img{display:block;max-width:100%;height:auto}.wrap{max-width:1120px;width:calc(100% - 64px);margin-inline:auto}.skip{position:fixed;left:1rem;top:-6rem;background:var(--mint);color:var(--ink);padding:1rem;z-index:5}.skip:focus{top:1rem}.site-header{display:flex;align-items:center;justify-content:space-between;padding-block:32px}.brand{font-family:system-ui,sans-serif;font-size:1.25rem;font-weight:850;letter-spacing:.06em;text-decoration:none}.brand span{color:var(--mint)}nav{display:flex;gap:28px;font-size:.875rem;color:var(--muted)}nav a{text-decoration:none}.hero{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:72px;align-items:center;padding-block:40px 68px}.eyebrow{color:var(--mint);font-size:.875rem;letter-spacing:.12em;font-weight:700;margin:0 0 24px}h1{font-size:clamp(2rem,4.15vw,3.25rem);line-height:1.48;letter-spacing:-.04em;margin:0 0 24px;font-weight:750}h1 span{color:var(--mint)}.lead{font-size:1.0625rem;line-height:2.05;color:var(--muted);margin:0 0 34px}.download-panel{max-width:465px}.release-label{color:var(--muted);font-size:.875rem;margin-bottom:10px}.download-button{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:19px 22px;border-radius:12px;background:var(--mint);color:var(--ink);font-size:1.0625rem;font-weight:750;text-decoration:none;box-shadow:0 5px 0 #547e70}.download-button:hover{background:#c2ffe5;color:var(--ink)}.download-button span{font-size:1.6rem;line-height:1}.download-meta{font-size:.875rem;line-height:1.7;color:var(--muted);margin:18px 0 6px}.direct-note{font-size:.8125rem;line-height:1.8;color:var(--muted);margin:0}.direct-note a{display:inline-block}.quick-facts{list-style:none;display:flex;flex-wrap:wrap;gap:10px 20px;font-size:.875rem;margin:26px 0 0;padding:0;color:var(--muted)}.quick-facts li:before{content:"·";color:var(--mint);margin-right:8px}.game-shot{margin:0;position:relative}.game-shot img{width:100%;border:1px solid #3a4c60;border-radius:24px;box-shadow:0 22px 64px #070f1da6}.game-shot figcaption{color:var(--muted);font-size:.8125rem;text-align:center;margin-top:18px;line-height:1.7}.loop{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;padding-block:48px 56px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.step-number{font:500 1rem system-ui;color:var(--mint)}h2{font-size:1.375rem;line-height:1.6;letter-spacing:-.025em;font-weight:700;margin:14px 0}.loop p,.installation p,.installation li span,.release-details p{color:var(--muted);line-height:1.9;font-size:1rem;margin:0}.installation{display:grid;grid-template-columns:1fr 1.35fr;gap:72px;padding-block:64px}.installation .eyebrow{margin-bottom:12px}.installation h2{font-size:1.75rem;margin-top:0}.installation ol{padding:0;margin:0;list-style:none;counter-reset:install}.installation li{position:relative;padding:0 0 24px 42px;counter-increment:install}.installation li:before{content:counter(install);position:absolute;left:0;top:0;background:var(--panel);color:var(--mint);width:28px;height:28px;display:grid;place-items:center;border-radius:7px;font:600 .875rem system-ui}.installation li strong{display:block;font-size:1rem;margin-bottom:7px}.installation li span{display:block;font-size:.9375rem}.release-details{padding:32px;border-radius:16px;background:var(--panel);margin-bottom:54px}.release-details h2{margin-top:0;font-size:1.125rem}.release-details p{font-size:.875rem;margin-bottom:8px}details{margin-top:22px;font-size:.875rem;color:var(--muted)}summary{cursor:pointer;color:var(--cream);padding-block:6px}dl{line-height:1.8}dt{color:var(--cream);margin-top:12px}dd{margin:4px 0 0;overflow-wrap:anywhere}.checksum{font-family:ui-monospace,monospace;font-size:.8125rem}footer{display:flex;align-items:center;flex-wrap:wrap;gap:20px 30px;padding-bottom:32px;color:var(--muted);font-size:.875rem}footer .brand{margin-right:auto;font-size:1rem}.document{max-width:780px;padding-block:36px 64px}.document h1{font-size:2rem}.document h2{margin-top:36px}.document p{line-height:1.95;color:var(--muted)}.document ul{padding-left:1.3rem;line-height:1.95;color:var(--muted)}
@media(max-width:850px){.hero{gap:36px;grid-template-columns:minmax(0,1fr) 260px}h1{font-size:2rem}.lead{font-size:1rem}.installation{gap:32px}.loop{gap:24px}.wrap{width:calc(100% - 40px)}}
@media(max-width:640px){.wrap{width:calc(100% - 40px)}.site-header{padding-block:25px}nav{gap:16px;font-size:.8125rem}.brand{font-size:1.05rem}.hero{display:flex;flex-direction:column;align-items:stretch;gap:42px;padding-block:24px 42px}.eyebrow{margin-bottom:16px}h1{font-size:clamp(1.8rem,7.6vw,2.7rem);line-height:1.5;margin-bottom:18px}.lead{line-height:1.95;margin-bottom:26px}.download-panel{max-width:none}.download-button{font-size:1rem;padding-inline:18px}.game-shot{align-self:center;width:min(78%,300px)}.loop{grid-template-columns:1fr;gap:28px;padding-block:36px}.loop article{display:grid;grid-template-columns:32px 1fr;gap:0 12px}.loop h2{margin:0 0 8px}.loop .step-number{padding-top:7px}.loop p{grid-column:2}.installation{grid-template-columns:1fr;gap:28px;padding-block:42px}.installation h2{font-size:1.5rem}.release-details{padding:24px;margin-bottom:34px}footer{align-items:flex-start;gap:18px}footer .brand{flex-basis:100%}.document{padding-block:20px 40px}.document h1{font-size:1.65rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.document p{overflow-wrap:anywhere}
.modes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;padding-block:56px;border-bottom:1px solid var(--line)}.modes-heading,.shared-rules{grid-column:1/-1}.modes-heading .eyebrow{margin-bottom:12px}.modes-heading h2{font-size:1.75rem;margin:0 0 4px}.mode-card{padding:28px;background:var(--panel);border:1px solid var(--line);border-radius:16px}.mode-label{color:var(--mint);font-size:.8125rem;margin:0 0 12px}.mode-card h3{font-size:1.25rem;line-height:1.6;margin:0 0 16px}.mode-card p:not(.mode-label),.shared-rules{font-size:.9375rem;line-height:1.95;color:var(--muted)}.mode-card p:last-child{margin-bottom:0}.shared-rules{margin:0}@media(max-width:640px){.modes{grid-template-columns:1fr;gap:20px;padding-block:40px}.mode-card{padding:24px}.modes-heading h2{font-size:1.5rem}}
.brand-icon{display:flex;align-items:center;gap:0}.brand-icon img{width:40px;height:40px;border-radius:11px;margin-right:12px;border:1px solid var(--line)}.memories{display:grid;grid-template-columns:minmax(0,1fr) 220px 220px;gap:32px;align-items:center;padding-block:64px;border-bottom:1px solid var(--line)}.memories-copy h2{font-size:2rem;line-height:1.6;margin:0 0 20px}.memories-copy p:not(.eyebrow){color:var(--muted);line-height:2;font-size:1rem}.memories figure{margin:0}.memories figure img{width:100%;border:1px solid #3a4c60;border-radius:20px;box-shadow:0 14px 40px #070f1d66}.memories figcaption{font-size:.75rem;color:var(--muted);text-align:center;line-height:1.7;margin-top:14px}
@media(max-width:850px){.memories{grid-template-columns:minmax(0,1fr) 170px 170px;gap:24px}.memories-copy h2{font-size:1.5rem}.memories-copy p:not(.eyebrow){font-size:.875rem}}
@media(max-width:640px){.brand-icon img{width:30px;height:30px;margin-right:7px}.site-header nav{gap:12px}.memories{grid-template-columns:1fr 1fr;gap:24px 18px;padding-block:40px}.memories-copy{grid-column:1/-1}.memories-copy h2{font-size:1.7rem}.memories-copy p:not(.eyebrow){font-size:1rem}.memories figure img{border-radius:14px}.memories figcaption{font-size:.6875rem}.memories-copy h2 br{display:none}}