:root{color-scheme:dark;--bg:#0c1016;--panel:#131a23;--text:#f1f4f8;--muted:#a0adbd;--line:#28323e;--mint:#a7f3cf}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"Segoe UI","Noto Sans JP",Meiryo,sans-serif;font-size:16px;line-height:1.7}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:3px solid var(--mint);outline-offset:5px}a:hover{color:var(--mint)}.wrap{max-width:1200px;margin:auto;padding-left:40px;padding-right:40px}header{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:100px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;letter-spacing:-.5px}.brand-icon{font-size:32px;color:var(--mint);line-height:1}nav{display:flex;gap:28px;font-size:13px;color:var(--muted)}.languages{display:flex;padding:4px;border:1px solid var(--line);border-radius:7px;gap:3px;font-size:12px;white-space:nowrap}.languages a{padding:4px 10px;border-radius:4px}.languages [aria-current]{background:#29343e;color:white}.hero{text-align:center;padding-top:80px}.eyebrow{font-size:11px;letter-spacing:2.5px;color:var(--mint);font-weight:600}.dot{display:inline-block;width:6px;height:6px;background:var(--mint);border-radius:50%;margin-right:10px;box-shadow:0 0 12px #a7f3cf88}h1{font-size:clamp(48px,6.3vw,82px);letter-spacing:-4px;line-height:1.08;margin:25px 0}h1::first-line{color:var(--text)}h1{color:var(--mint)}h2{font-size:clamp(30px,3.8vw,47px);letter-spacing:-1.8px;line-height:1.17;margin:18px 0 22px}h3{font-size:19px;line-height:1.4;margin:16px 0 10px;letter-spacing:-.4px}p{color:var(--muted);margin-top:0}.lead{font-size:18px;line-height:1.75;max-width:600px;margin:0 auto 28px}.actions{display:flex;align-items:center;justify-content:center;gap:28px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;gap:25px;border-radius:6px;padding:13px 22px;font-size:14px;font-weight:650}.primary{background:var(--mint);color:#0c241b;border:1px solid var(--mint)}.primary:hover{background:#c5ffe3;color:#0c241b}.text-link{font-size:14px;font-weight:600}.meta{font-size:11px;letter-spacing:.6px;margin-top:24px}.showcase{margin:52px 0 0;text-align:left;border:1px solid #3b4b58;border-radius:12px;padding:12px;background:#111821;box-shadow:0 25px 100px #4b997d13;transform:perspective(1600px) rotateX(3deg)}.showcase-bar{display:flex;justify-content:space-between;align-items:center;padding:0 4px 12px;font-size:11px;color:#b8c5d2;gap:12px}.showcase-bar 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.tile:nth-child(n+13){display:block}.grouped .tile{aspect-ratio:2.15}figcaption{font-size:10px;color:#9ba9b9;text-align:center;padding:12px 0 1px}.stats{display:grid;grid-template-columns:repeat(3,1fr);margin-top:45px;padding:24px 0 40px;border-bottom:1px solid var(--line)}.stats div+div{border-left:1px solid var(--line)}.stats strong{display:block;font-size:45px;line-height:1.2;letter-spacing:-2px;font-weight:550}.stats span{display:block;font-size:12px;color:var(--muted);margin-top:8px}.section{padding-top:100px;padding-bottom:100px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:70px}.section-heading>p{max-width:430px}.features{display:grid;grid-template-columns:repeat(2,1fr);column-gap:65px;row-gap:38px;margin-top:38px}.features article{border-top:1px solid var(--line);padding-top:26px}.feature-number{font:12px monospace;color:var(--mint)}.features p{font-size:14px;max-width:460px}.systems-section{background:#10161e;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.section-intro{max-width:590px}.system-list{margin:35px 0 24px}.system-row{display:grid;grid-template-columns:220px 1fr;gap:25px;border-top:1px solid var(--line);padding:20px 0}.system-row:last-child{border-bottom:1px solid var(--line)}.system-row h3{font-size:14px;margin:0;color:#e4eaf0}.system-row p{font-size:13px;line-height:1.9;margin:0}.note{font-size:12px;line-height:1.9;max-width:840px}.control-section{display:grid;grid-template-columns:1fr 1fr;gap:90px;border-bottom:1px solid var(--line)}.control-section h2{max-width:430px}.control-section>div>p:not(.eyebrow){font-size:14px}.control-section .note{margin-top:28px;font-size:12px!important}.keyboard{align-self:center}.key-row{display:flex;align-items:center;gap:25px;padding:20px 0;border-bottom:1px solid var(--line);font-size:13px}.key-row:first-child{border-top:1px solid var(--line)}kbd{min-width:83px;text-align:center;background:#1b2631;border:1px solid #3a4959;border-bottom:3px solid #3a4959;border-radius:6px;padding:6px 10px;font:13px monospace;color:var(--mint)}.setup{display:grid;grid-template-columns:1fr 1fr;gap:90px}.steps{list-style:none;padding:0;margin:0}.steps li{display:flex;gap:25px;padding-bottom:26px}.steps li>span{font:12px monospace;color:var(--mint);padding-top:5px}.steps h3{margin-top:0}.steps p{font-size:14px}.folder{margin-top:35px;border-left:2px solid var(--mint);padding:3px 0 3px 20px}.folder>span{font-size:11px;color:var(--muted);display:block}.folder code{display:block;font-size:12px;color:var(--mint);margin:9px 0;overflow-wrap:anywhere}.folder p{font-size:12px;margin:0;max-width:350px}.closing{padding-top:60px;padding-bottom:65px;text-align:center;background:radial-gradient(ellipse at top,#223c35 0,transparent 65%);border-top:1px solid #4a7163;border-bottom:1px solid var(--line)}.closing h2{font-size:38px}.closing p{font-size:14px}footer{padding-top:45px;padding-bottom:35px}.footer-top{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:25px}.footer-top>div{display:flex;gap:25px;font-size:11px;color:var(--muted)}footer p{font-size:11px;margin:6px 0}footer p a{text-decoration:underline}.skip{position:fixed;top:-80px;left:15px;background:var(--mint);color:#000;padding:10px;z-index:100}.skip:focus{top:10px}html[lang=ja] h1{font-size:clamp(40px,5.8vw,72px);line-height:1.3;letter-spacing:-2px}html[lang=ja] h2{font-size:clamp(28px,3.1vw,40px);line-height:1.45}html[lang=ja] .eyebrow{letter-spacing:1.5px}html[lang=ja] p{line-height:1.95}
@media(max-width:800px){.wrap{padding-left:24px;padding-right:24px}header{min-height:85px;flex-wrap:wrap;gap:12px;padding-top:16px;padding-bottom:15px}nav{order:3;width:100%;justify-content:center;gap:32px}.brand{font-size:16px}.hero{padding-top:55px}h1{letter-spacing:-2px}.section{padding-top:65px;padding-bottom:65px}.section-heading{display:block}.section-heading>p{max-width:100%}.control-section,.setup{grid-template-columns:1fr;gap:30px}.system-row{grid-template-columns:150px 1fr;gap:18px}.features{gap:25px}.footer-top{align-items:flex-start;flex-direction:column}.tile span{font-size:6px;letter-spacing:0;padding:2px}.showcase{margin-top:40px;transform:none;padding:8px}.showcase-bar{font-size:10px}.layout-control button{font-size:10px;padding:4px 7px}.stats strong{font-size:36px}.stats span{font-size:10px}.closing h2{font-size:30px}}
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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}