:root{color-scheme:dark;--bg:#030a10;--fg:#e9f4f5;--muted:#a8bec7;--cyan:#86e6e4;--line:#213740}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:35px}body{margin:0;background:var(--bg);color:var(--fg);font-family:Arial,Helvetica,sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}a:hover{color:var(--cyan)}a:focus-visible{outline:2px solid var(--cyan);outline-offset:7px}.skip{position:absolute;top:-100px;left:20px}.skip:focus{top:10px;background:var(--bg);z-index:10}header{max-width:1440px;margin:auto;padding:30px 6%;display:flex;justify-content:space-between;align-items:center;gap:28px;border-bottom:1px solid #14262f}.brand{font-size:22px;letter-spacing:.12em;white-space:nowrap}.brand span{font-size:10px;letter-spacing:.23em;margin-left:12px}nav{display:flex;gap:26px;font-size:12px;color:#b2c6cd}main{max-width:1440px;margin:auto}section{margin:0 8%;padding:100px 0;border-bottom:1px solid var(--line)}.hero{padding-top:75px}.label{font-size:10px;letter-spacing:.17em;text-transform:uppercase;color:var(--cyan)}h1{font-size:clamp(54px,7.5vw,106px);line-height:1.02;font-weight:400;letter-spacing:-.055em;margin:30px 0}h1 em{font-family:Georgia,serif;color:var(--cyan)}.intro{font-size:18px;max-width:590px}.explore{font-size:12px;display:inline-block;margin-top:20px;border-bottom:1px solid #52767e;padding-bottom:12px}figure{margin:54px 0 0}.pending{min-height:290px;border:1px dashed #29404b;background:#07121a;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px}.pending span{font-size:10px;letter-spacing:.2em;color:var(--muted)}.pending p{font-size:13px;margin:15px 0}.hero .pending{min-height:330px}figcaption{font-size:11px;color:var(--muted);margin-top:14px}.split{display:grid;grid-template-columns:1fr 2fr;gap:70px}.label{padding-top:10px}h2{font-size:clamp(30px,3.3vw,47px);font-weight:400;line-height:1.2;letter-spacing:-.035em;margin:0 0 30px}p{color:var(--muted);font-size:15px;margin:0 0 22px}strong{color:var(--fg);font-weight:400}section:not(.split):not(.hero)>.content{margin-top:30px}#experience .content>p,#system .content>p{max-width:760px}.diagram{text-align:center;background:radial-gradient(ellipse at center,#0b2935 0,transparent 70%);padding:25px}.node{display:inline-block;border:1px solid #32535e;padding:15px 40px;font-size:15px}.core{border-color:#6aa7ad;color:var(--cyan)}.arrow{display:block;color:#78bec5;padding:10px}.branches{display:flex;justify-content:center;gap:40px;color:var(--cyan);font-size:14px}.feedback{margin:25px 0;font-size:11px}.diagram figcaption{max-width:600px;margin:30px auto 0}.status{border-left:2px solid var(--cyan);padding:10px 0 10px 20px;font-size:12px}#connect{text-align:center;padding:110px 0 130px}#connect h2{font-size:clamp(38px,4.5vw,64px);max-width:700px;margin:0 auto 30px}#connect p{max-width:530px;margin:auto}footer{padding:45px 8%;max-width:1440px;margin:auto;display:grid;grid-template-columns:1fr 1fr auto;gap:35px}footer p,footer a{font-size:11px}footer p{max-width:310px}@media(max-width:700px){header{align-items:flex-start;flex-direction:column;padding:24px 6%;gap:18px}nav{gap:20px;flex-wrap:wrap;font-size:11px}section{margin:0 6%;padding:65px 0}.hero{padding-top:55px}h1{font-size:57px}.intro{font-size:16px}.split{grid-template-columns:1fr;gap:26px}.branches{gap:15px;font-size:11px}.node{font-size:13px}.pending,.hero .pending{min-height:220px}footer{grid-template-columns:1fr;gap:15px}#connect{padding:70px 0}footer p{margin:0}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
figure img{display:block;width:100%;height:auto;}

/* Language controls share the site's restrained navigation treatment. */
header{flex-wrap:wrap;column-gap:24px;row-gap:18px}
header>nav:first-of-type{margin-left:auto}
.languages{flex-shrink:0;gap:9px;font-size:11px;align-items:center}
.languages a{white-space:nowrap;color:var(--muted)}
.languages [aria-current="page"]{color:var(--cyan);text-decoration:underline;text-underline-offset:5px}
.languages>span{color:#78949f}
html:lang(ja) body{font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic",Meiryo,sans-serif;line-height:1.95;line-break:strict;word-break:normal;overflow-wrap:anywhere}
html:lang(ja) h1{font-size:clamp(34px,5.7vw,80px);line-height:1.5;letter-spacing:.015em;font-weight:400}
html:lang(ja) h1 em{font-family:"Noto Serif JP","Hiragino Mincho ProN","Yu Mincho",serif;font-style:normal}
html:lang(ja) h2{font-size:clamp(26px,3vw,43px);line-height:1.65;letter-spacing:.015em}
html:lang(ja) p{line-height:2}
html:lang(ja) .label{letter-spacing:.12em;line-height:1.9}
html:lang(ja) .intro{max-width:660px;line-height:2}
html:lang(ja) #connect h2{font-size:clamp(30px,3.8vw,53px);line-height:1.65}
html:lang(ja) figcaption{line-height:1.9}
html:lang(ja) .brand{font-family:Arial,Helvetica,sans-serif}
.content{min-width:0}
@media(max-width:700px){
 header{display:grid;grid-template-columns:1fr auto;align-items:center;column-gap:12px}
 header>nav:first-of-type{grid-column:1/-1;grid-row:2;margin-left:0;gap:18px}
 .languages{grid-column:2;grid-row:1;gap:7px}
 .brand{font-size:20px}.brand span{font-size:9px;letter-spacing:.16em;margin-left:7px}
 html:lang(ja) h1{font-size:clamp(29px,6.8vw,47px)}
 html:lang(ja) .split{gap:24px}
 html:lang(ja) .node{padding:14px 18px}
 html:lang(ja) .branches{flex-wrap:wrap;gap:12px 22px}
}
@media(max-width:359px){header{column-gap:7px}.brand{font-size:18px}.brand span{font-size:8px}.languages{font-size:10px}}