/* 色・余白・画面幅はここから調整できます。外部フォントやライブラリは不要です。 */
:root{color-scheme:dark;--bg:#101211;--paper:#e3dfd3;--muted:#a6a79d;--gold:#bda57a;--line:#343831;--max:1160px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--paper);font-family:"Yu Gothic",Meiryo,sans-serif;font-size:15px;line-height:1.9}a{color:inherit;text-decoration:none}a:hover{color:var(--gold)}a:focus-visible{outline:2px solid var(--gold);outline-offset:6px}img{max-width:100%;display:block}h1,h2,h3,p,figure{margin:0}h1,h2,h3,.brand{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-weight:500}h2{font-size:clamp(29px,3.6vw,43px);line-height:1.55;letter-spacing:.08em}h3{font-size:22px;line-height:1.6}.header{min-height:86px;display:flex;align-items:center;justify-content:space-between;padding:16px 5%;border-bottom:1px solid var(--line);gap:24px;background:#101211}.brand{display:flex;align-items:center;gap:12px;font-size:20px;letter-spacing:.12em}.header nav{display:flex;gap:32px;align-items:center;font-size:13px}.nav-cta{border:1px solid #67604c;padding:8px 20px}.hero{min-height:710px;min-height:min(850px,calc(100svh - 86px));position:relative;overflow:hidden;display:flex;align-items:center;isolation:isolate}.hero-inner{width:min(var(--max),90%);margin:0 auto;padding:80px 0 95px;position:relative}.eyebrow{font:11px/1.6 Georgia,serif;letter-spacing:.2em;color:var(--gold);margin-bottom:24px}h1{font-size:clamp(34px,5.2vw,67px);letter-spacing:.16em;line-height:1.3}.hero-copy{font-family:"Yu Mincho",serif;font-size:clamp(25px,3.2vw,40px);line-height:1.7;letter-spacing:.12em;margin:27px 0 18px}.hero-description{color:#b8bbb0}.actions{display:flex;align-items:center;gap:30px;margin-top:32px}.button{display:inline-flex;align-items:center;justify-content:center;gap:40px;padding:15px 26px;background:var(--gold);color:#161912;min-height:54px;font-size:14px;font-weight:600;border:1px solid var(--gold)}a.button:hover{background:#d2bd97;color:#101211}.text-link{font-size:13px}.art-note{font-size:10px;color:#969b8e;margin-top:20px}.scroll{position:absolute;bottom:26px;left:5%;font:10px Georgia,serif;letter-spacing:.18em;color:var(--muted)}.scroll span{margin-left:24px}.corridor{position:absolute;inset:0;z-index:-1;background:radial-gradient(ellipse at 76% 44%,#75603b22,transparent 48%),linear-gradient(90deg,#101211 5%,#101211d9 36%,transparent 80%),#141a17;overflow:hidden}.portal{position:absolute;left:50%;top:3%;width:52%;height:100%;border:46px solid #30362d;border-bottom:0;box-shadow:inset 2px 0 #79765055,0 0 0 1px #79765033;transform:perspective(800px) rotateY(-12deg);background:linear-gradient(90deg,#090c0a88,transparent)}.p2{left:58%;top:15%;width:35%;height:80%;border-width:29px;border-color:#262d25}.p3{left:64%;top:26%;width:23%;height:61%;border-width:19px;border-color:#20271f}.p4{left:69%;top:35%;width:13%;height:47%;border-width:12px;border-color:#1b211a;background:#080b09}.floor{position:absolute;left:30%;right:-20%;height:50%;bottom:-29%;transform:perspective(250px) rotateX(55deg);background:repeating-linear-gradient(0deg,transparent 0 56px,#787a5726 57px 58px),repeating-linear-gradient(90deg,transparent 0 85px,#787a5726 86px 87px)}.hero-sigil{position:absolute;width:85px;left:71%;top:46%;opacity:.3}.corridor:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#101211,transparent 35%,#10121122)}.section{width:min(var(--max),90%);margin:auto;padding:100px 0;border-bottom:1px solid var(--line)}.features{display:grid;grid-template-columns:.9fr 1.1fr;gap:80px}.section-heading>p:last-child{color:var(--muted);margin-top:24px}.feature-list article{display:flex;gap:30px;border-top:1px solid var(--line);padding:24px 0}.feature-list article:last-child{padding-bottom:0}.number{color:var(--gold);font:18px Georgia,serif;min-width:24px;padding-top:8px}.feature-list p{color:var(--muted);margin:10px 0;font-size:14px}.tag{color:var(--gold);font-size:10px;letter-spacing:.08em}.section-top{display:flex;justify-content:space-between;align-items:end;margin-bottom:36px;gap:24px}.section-top .eyebrow{margin-bottom:12px}.muted{color:var(--muted);font-size:13px}.screenshots{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.media-slot{aspect-ratio:16/10;border:1px solid #45483b;background:linear-gradient(135deg,#bba57007,transparent),#151914;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:8px;color:var(--gold);font:11px/1.6 Georgia,serif;letter-spacing:.12em;overflow:hidden}.media-slot small{font:11px/1.7 "Yu Gothic",sans-serif;letter-spacing:0;color:var(--muted)}.media-slot .slot-symbol{font-size:32px;opacity:.7;margin-bottom:8px}.media-slot img{width:100%;height:100%;object-fit:contain;aspect-ratio:16/10}.media-slot.has-media{display:block;background:#090b09}.media-slot video{display:block;width:100%;height:100%;object-fit:contain}figcaption{color:var(--gold);font:11px/1.6 Georgia,serif;margin-top:14px}figcaption span{font-family:"Yu Gothic",sans-serif;color:var(--muted);margin-left:16px}.trailer-wrap{display:grid;grid-template-columns:2fr 1fr;gap:50px;align-items:center;margin-top:65px}.trailer{aspect-ratio:16/9}.trailer-copy h3{font-size:30px;margin-bottom:18px}.trailer-copy p:last-child{font-size:13px;color:var(--muted)}.about{display:grid;grid-template-columns:1fr 1fr;gap:90px}.about-copy{font-size:17px;margin:25px 0 18px}.specs{margin:0}.specs>div{display:grid;grid-template-columns:145px 1fr;border-bottom:1px solid var(--line);padding:16px 0;gap:20px;font-size:13px}.specs>div:first-child{border-top:1px solid var(--line)}dt{color:var(--muted)}dd{margin:0;overflow-wrap:anywhere}.purchase{text-align:center;padding:95px 5% 105px;background:radial-gradient(ellipse at center,#77733c10,transparent 70%)}.purchase>img{margin:0 auto 22px}.purchase h2{font-size:clamp(36px,5vw,56px)}.purchase>p:not(.eyebrow){margin:20px 0}.purchase .button{margin-top:12px}.unavailable{background:transparent;color:var(--muted);border-color:#555b4c;cursor:default}footer{padding:32px 5%;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:24px;font-size:11px;color:var(--muted)}footer .brand{font-size:16px;color:var(--paper)}footer p{max-width:520px}.skip{position:fixed;left:16px;top:-100px;background:var(--gold);color:#111;padding:10px;z-index:10}.skip:focus{top:10px}.noscript{text-align:center;padding:12px;color:var(--muted);font-size:12px}
@media(min-width:1600px){.hero-inner{width:var(--max)}}
@media(max-width:800px){.header{padding:15px 5%;flex-wrap:wrap;gap:14px}.header nav{gap:20px;flex-wrap:wrap}.hero{min-height:710px}.hero-inner{padding:65px 0 100px}.corridor{opacity:.55}.portal{left:32%;width:80%}.p2{left:48%;width:53%}.p3{left:59%;width:34%}.p4{left:66%;width:20%}.features,.about{grid-template-columns:1fr;gap:40px}.section{padding:65px 0}.section-top{display:block}.section-top .muted{margin-top:18px}.screenshots{grid-template-columns:1fr;gap:28px}.trailer-wrap{grid-template-columns:1fr;gap:24px;margin-top:45px}.trailer-copy h3 br{display:none}.trailer-copy .eyebrow{margin-bottom:12px}footer{align-items:start;flex-direction:column;gap:16px}}
@media(max-width:420px){.brand{font-size:18px}.header nav{gap:16px;font-size:12px}.nav-cta{padding:4px 10px}.hero{min-height:680px}.actions{gap:20px}.button{padding:14px 20px;gap:20px}.hero-copy{letter-spacing:.06em}.art-note{max-width:250px}.specs>div{grid-template-columns:110px 1fr;gap:15px}.feature-list article{gap:17px}h3{font-size:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.media-slot.has-media>a{display:block;width:100%;height:100%;cursor:zoom-in}.media-slot.has-media>a:focus-visible{outline-offset:-4px}.gallery-note{margin-top:22px}

.store-options{display:flex;justify-content:center;gap:20px;flex-wrap:wrap;margin-top:28px}.store-option{display:flex;flex-direction:column;align-items:center;gap:8px}.store-option .button{min-width:200px}.store-option small{font-size:11px;color:var(--muted)}@media(max-width:600px){.store-options{flex-direction:column;align-items:stretch}.store-option .button{width:100%}}