@font-face{font-family:Chakra Petch;font-weight:600 700;font-display:swap;src:url(../assets/fonts/chakra-petch-700.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:IBM Plex Sans;font-weight:400 600;font-display:swap;src:url(../assets/fonts/plex-sans-var.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:IBM Plex Mono;font-weight:400 500;font-display:swap;src:url(../assets/fonts/plex-mono-500.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Chakra Fallback;src:local("Arial Bold"),local("Arial-BoldMT"),local("Arial");size-adjust:100.4%;ascent-override:98.8%;descent-override:30.7%;line-gap-override:0%}@font-face{font-family:Plex Fallback;src:local("Arial"),local("ArialMT");size-adjust:101.5%;ascent-override:101%;descent-override:27.1%;line-gap-override:0%}@font-face{font-family:Plex Mono Fallback;src:local("Courier New"),local("CourierNewPSMT");size-adjust:100%;ascent-override:102.5%;descent-override:27.5%;line-gap-override:0%}:root{--bg: #07060b;--bg-2: #0e0b16;--ink: #ece8f5;--muted: #9b94ae;--dim: #6b6580;--pink: #f472b6;--purple: #b794f6;--green: #6ee7b7;--line: rgba(183, 148, 246, .18);--line-strong: rgba(183, 148, 246, .38);--glass: rgba(22, 16, 36, .42);--f-jp: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Yu Gothic", "YuGothic", Meiryo, "Noto Sans JP", "Noto Sans CJK JP", sans-serif;--f-display: "Chakra Petch", "Chakra Fallback", var(--f-jp);--f-body: "IBM Plex Sans", "Plex Fallback", system-ui, -apple-system, "Segoe UI", var(--f-jp);--f-mono: "IBM Plex Mono", "Plex Mono Fallback", ui-monospace, "SFMono-Regular", Menlo, monospace;--gutter: clamp(16px, 5vw, 64px);--gutter-l: var(--gutter);--content-x: max(var(--gutter-l), calc((100vw - 1240px) / 2 + var(--gutter-l)));--sec-pad: clamp(96px, 14vh, 160px);--ease: cubic-bezier(.2, .8, .2, 1);color-scheme:dark}@media(min-width:960px){:root{--gutter-l: clamp(80px, 8vw, 128px)}}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;overflow-x:clip}html.smooth-scroll{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:400 1.0625rem/1.65 var(--f-body);overflow-x:hidden;overflow-x:clip;-webkit-font-smoothing:antialiased}html[lang=ja] body{font-family:"IBM Plex Sans","Plex Fallback",var(--f-jp);line-height:1.85}img{max-width:100%;display:block}[hidden]{display:none!important}a{color:inherit}::selection{background:var(--pink);color:var(--bg)}:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:4px}.mono{font-family:var(--f-mono)}.dim{color:var(--dim)}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.skip{position:fixed;left:16px;top:-60px;z-index:100;background:var(--green);color:var(--bg);padding:8px 14px;border-radius:6px;font-weight:600;transition:top .2s}.skip:focus{top:16px}.wrap{max-width:1240px;margin-inline:auto;padding-inline:var(--gutter-l) var(--gutter)}.bg{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}.bg-grid{position:absolute;inset:-10%;background-image:radial-gradient(rgba(183,148,246,.22) 1px,transparent 1.4px);background-size:28px 28px;-webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000 20%,transparent 75%);mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000 20%,transparent 75%)}.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;will-change:transform}.orb-a{width:46vmax;height:46vmax;left:-12vmax;top:-10vmax;background:radial-gradient(circle,rgba(244,114,182,.55),transparent 65%)}.orb-b{width:52vmax;height:52vmax;right:-18vmax;top:30vh;background:radial-gradient(circle,rgba(183,148,246,.5),transparent 65%)}.orb-c{width:30vmax;height:30vmax;left:30vw;bottom:-14vmax;background:radial-gradient(circle,rgba(110,231,183,.18),transparent 65%)}@media(max-width:860px){.orb{filter:blur(60px)}}.bg-scan{position:absolute;inset:0;background:repeating-linear-gradient(to bottom,rgba(255,255,255,.018) 0 1px,transparent 1px 3px)}.progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:60}.progress span{display:block;height:100%;width:100%;transform-origin:0 50%;transform:scaleX(0);background:linear-gradient(90deg,var(--pink),var(--purple),var(--green))}.glass{background:linear-gradient(160deg,#ffffff12,#ffffff04 40%),var(--glass);border:1px solid var(--line);border-radius:6px;backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);box-shadow:0 30px 60px -30px #000000b3,inset 0 1px #ffffff0f}@media(max-width:860px){.glass{backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);background:linear-gradient(160deg,#ffffff0f,#ffffff04 40%),#120d1eb8}}.hud{position:relative}.hud:before,.hud:after{content:"";position:absolute;width:14px;height:14px;pointer-events:none;border:1.5px solid var(--green);opacity:.8;transition:width .4s var(--ease),height .4s var(--ease),opacity .3s}.hud:before{top:-1px;left:-1px;border-right:0;border-bottom:0;border-top-left-radius:6px}.hud:after{bottom:-1px;right:-1px;border-left:0;border-top:0;border-bottom-right-radius:6px;border-color:var(--pink)}.hud:hover:before,.hud:hover:after,.hud:focus-within:before,.hud:focus-within:after{width:34px;height:34px;opacity:1}.site-header{position:fixed;inset:0 0 auto;z-index:50;padding-top:env(safe-area-inset-top,0px);transition:background .4s,border-color .4s,backdrop-filter .4s;border-bottom:1px solid transparent}.site-header.scrolled{background:#07060b8c;backdrop-filter:blur(14px) saturate(150%);-webkit-backdrop-filter:blur(14px) saturate(150%);border-bottom-color:var(--line)}.header-inner{display:flex;align-items:center;gap:24px;height:72px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font:600 1.1rem/1 var(--f-display);letter-spacing:.02em;margin-right:auto}.brand img{width:40px;height:auto;filter:drop-shadow(0 0 10px rgba(244,114,182,.45))}.brand b{color:var(--green);font-weight:600}.nav{display:flex;gap:4px}.nav a{position:relative;text-decoration:none;padding:8px 12px;border-radius:4px;font-size:.9rem;color:var(--muted);transition:color .2s}.nav a:after{content:"";position:absolute;left:12px;right:12px;bottom:3px;height:1.5px;background:linear-gradient(90deg,var(--pink),var(--purple));transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}.nav a:hover,.nav a.active{color:var(--ink)}.nav a:hover:after,.nav a.active:after{transform:scaleX(1)}.lang{display:inline-flex;align-items:center;gap:8px;font:500 .85rem/1 var(--f-body);color:var(--ink);background:#ffffff0a;border:1px solid var(--line-strong);padding:9px 14px;border-radius:999px;cursor:pointer;transition:border-color .2s,background .2s}.lang:hover{border-color:var(--green);background:#6ee7b714}.lang-led{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green)}.menu{display:none}@media(max-width:860px){.menu{display:grid;place-items:center;width:42px;height:42px;padding:0;background:#ffffff0a;border:1px solid var(--line-strong);border-radius:8px;cursor:pointer;color:var(--ink)}.menu-bars,.menu-bars:before,.menu-bars:after{display:block;width:18px;height:1.5px;background:currentColor;transition:transform .3s var(--ease),opacity .2s}.menu-bars{position:relative}.menu-bars:before,.menu-bars:after{content:"";position:absolute;left:0}.menu-bars:before{top:-6px}.menu-bars:after{top:6px}.menu[aria-expanded=true] .menu-bars{background:transparent}.menu[aria-expanded=true] .menu-bars:before{transform:translateY(6px) rotate(45deg)}.menu[aria-expanded=true] .menu-bars:after{transform:translateY(-6px) rotate(-45deg)}.nav{position:fixed;inset:calc(72px + env(safe-area-inset-top,0px)) 0 auto;flex-direction:column;gap:0;padding:12px var(--gutter) 24px;background:#07060beb;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--line);clip-path:inset(0 0 100% 0);transition:clip-path .45s var(--ease);visibility:hidden}.nav.open{clip-path:inset(0 0 0 0);visibility:visible}.nav a{font-size:1.15rem;padding:14px 4px;border-bottom:1px solid var(--line)}.nav a:after{display:none}.header-inner{gap:10px}}.btn{--bx: 50%;--by: 50%;position:relative;display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:12px 22px;border-radius:4px;font:600 .95rem/1.2 var(--f-display);letter-spacing:.03em;text-decoration:none;cursor:pointer;border:1px solid transparent;overflow:hidden;isolation:isolate;transition:transform .25s var(--ease),box-shadow .3s,border-color .2s,color .2s}.btn-primary{color:#12091c;background:linear-gradient(100deg,var(--pink),var(--purple));box-shadow:0 10px 30px -10px #f472b699}.btn-primary:before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(120px circle at var(--bx) var(--by),rgba(255,255,255,.55),transparent 60%);opacity:0;transition:opacity .3s}.btn-primary:hover:before{opacity:1}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px -12px #f472b6bf}.btn-ghost{color:var(--ink);background:#ffffff08;border-color:var(--line-strong)}.btn-ghost:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}.btn-arrow{transition:transform .3s var(--ease)}.btn:hover .btn-arrow{transform:translateY(3px)}.btn-block{width:100%}.chip-btn{font-size:.78rem;padding:8px 12px;border-radius:4px;cursor:pointer;color:var(--green);background:#6ee7b70f;border:1px solid rgba(110,231,183,.35);transition:background .2s}.chip-btn:hover{background:#6ee7b724}h1,h2,h3{font-family:var(--f-display);font-weight:700;margin:0;letter-spacing:-.01em}html[lang=ja] h1,html[lang=ja] h2{letter-spacing:.01em}.eyebrow{margin:0 0 18px;font-size:.82rem;letter-spacing:.08em;color:var(--green);text-transform:lowercase}html[lang=ja] .eyebrow{letter-spacing:.04em}.sec-head{margin-bottom:clamp(40px,6vw,72px);max-width:760px}.sec-head h2{font-size:clamp(2.2rem,5vw,4rem);line-height:1.05}html[lang=ja] .sec-head h2{line-height:1.25;font-size:clamp(2rem,4.4vw,3.4rem)}.sec-lead{color:var(--muted);font-size:1.1rem;margin:20px 0 0;max-width:60ch}[data-scramble]{display:inline-block;vertical-align:top}.i18n-pending [data-i18n],.i18n-pending .hero-lead{visibility:hidden}main{position:relative}.trace{position:absolute;top:0;left:0;pointer-events:none;z-index:0;overflow:visible}.trace.off{display:none}.trace-bed{fill:none;stroke:#b794f61f;stroke-width:2}.trace-line,.trace-glow{fill:none;stroke:url(#trace-grad);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}.trace-glow{stroke-width:9;opacity:.2}.trace-dot{position:absolute;top:0;left:0;z-index:0;width:10px;height:10px;margin:-5px 0 0 -5px;border-radius:50%;background:#fff;pointer-events:none;opacity:0;transition:opacity .3s;box-shadow:0 0 6px 1px var(--pink),0 0 18px 5px #f472b680;will-change:transform}.trace-dot.on{opacity:1}.trace-dot i{position:absolute;inset:-4px;border-radius:50%;border:1.5px solid var(--green);opacity:0}.trace-node circle.ring,.trace-node.on circle.ring{fill:none;filter:none;stroke:var(--green);stroke-width:1.5;opacity:0;transform-box:fill-box;transform-origin:center}.trace-node.click .ring{animation:node-click .6s cubic-bezier(.2,.8,.2,1)}@keyframes node-click{0%{opacity:.9;transform:scale(1)}to{opacity:0;transform:scale(3.2)}}.trace.off+.trace-dot{display:none}.trace-node circle{fill:var(--bg);stroke:var(--line-strong);stroke-width:2;transition:stroke .4s,fill .4s}.trace-node path{fill:none;stroke:var(--line);stroke-width:1.5;stroke-dasharray:60;stroke-dashoffset:60;transition:stroke-dashoffset .6s var(--ease) .1s,stroke .4s}.trace-node.on circle{fill:var(--green);stroke:var(--green);filter:drop-shadow(0 0 8px var(--green))}.trace-node.on path{stroke:var(--green);stroke-dashoffset:0}section,.band{position:relative;z-index:1}.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding-block:calc(110px + env(safe-area-inset-top,0px)) 90px}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(24px,4vw,64px);align-items:center;width:100%}.hero-title{font-size:clamp(2.5rem,5.2vw,4.9rem);line-height:1;margin-bottom:28px}html[lang=ja] .hero-title{font-size:clamp(2.1rem,4.4vw,4rem);line-height:1.25;word-break:auto-phrase}.hero-title .line{display:block}.line-grad span{background:linear-gradient(95deg,var(--pink) 10%,var(--purple) 70%);-webkit-background-clip:text;background-clip:text;color:transparent}.hero-lead{font-size:clamp(1.05rem,1.4vw,1.2rem);color:var(--muted);max-width:54ch;margin:0 0 36px}.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}.prompt{color:var(--pink)}.cursor{display:inline-block;width:.55em;height:1.05em;background:var(--green);margin-left:6px;vertical-align:-3px;animation:blink 1.05s steps(1) infinite}@keyframes blink{50%{opacity:0}}.now{display:inline-flex;align-items:center;gap:10px;flex-wrap:wrap;text-decoration:none;padding:10px 16px 10px 14px;border-radius:999px;border:1px solid var(--line);background:#ffffff08;font-size:.9rem;transition:border-color .2s}.now:hover{border-color:var(--green)}.now-label{color:var(--muted);font-size:.78rem;letter-spacing:.06em}.led{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--dim);flex:none}.led-green,.led.on{background:var(--green);box-shadow:0 0 10px var(--green);animation:pulse 2s ease-in-out infinite}.led-purple{background:var(--purple);box-shadow:0 0 10px var(--purple)}.led-pink{background:var(--pink);box-shadow:0 0 10px var(--pink)}@keyframes pulse{50%{opacity:.45}}.hero-art{position:relative;perspective:1000px;aspect-ratio:1;max-width:560px;justify-self:center;width:100%}.hero-halo{position:absolute;inset:12%;border-radius:50%;background:conic-gradient(from 0deg,#f472b600,#f472b659,#b794f659,#6ee7b733,#f472b600);filter:blur(50px);animation:spin 18s linear infinite}@keyframes 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.big{font-size:clamp(1.2rem,1.8vw,1.45rem);color:var(--ink);line-height:1.55;margin-top:0}.sub{font-size:.82rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--purple);margin:56px 0 20px}.log-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px 20px;flex-wrap:wrap;margin:56px 0 24px}.log-head .sub{margin:0}.log-filter{display:flex;gap:6px;flex-wrap:wrap}.log-filter .chip-btn{display:inline-flex;align-items:center;gap:7px;color:var(--muted);background:#ffffff08;border-color:var(--line-strong);min-height:36px}.log-filter .chip-btn[aria-pressed=true]{color:var(--ink);border-color:var(--green);background:#6ee7b71a}.dot{width:7px;height:7px;border-radius:50%;display:inline-block}.dot-build{background:var(--pink);box-shadow:0 0 6px var(--pink)}.dot-teach{background:var(--green);box-shadow:0 0 6px var(--green)}.timeline{list-style:none;margin:0;padding:0;position:relative}.timeline:before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;background:linear-gradient(var(--pink),var(--purple),transparent)}.timeline li{position:relative;padding:0 0 28px 34px}.timeline li:before{content:"";position:absolute;left:0;top:7px;width:11px;height:11px;border-radius:2px;rotate:45deg;background:var(--bg);border:1.5px solid var(--purple);transition:background .4s,box-shadow .4s}.timeline li.in:before{background:var(--purple);box-shadow:0 0 12px var(--purple)}.timeline li.tl-build:before{border-color:var(--pink)}.timeline li.tl-build.in:before{background:var(--pink);box-shadow:0 0 12px var(--pink)}.timeline li.tl-teach:before{border-color:var(--green)}.timeline li.tl-teach.in:before{background:var(--green);box-shadow:0 0 12px var(--green)}.timeline li.tl-study:before{border-color:var(--purple)}.timeline li.tl-study.in:before{background:var(--purple);box-shadow:0 0 12px var(--purple)}.timeline li:first-child:before,.timeline li:first-child.in:before{background:linear-gradient(135deg,var(--pink) 50%,var(--green) 50%);border-color:transparent}.tl-when{font:500 .8rem/1 var(--f-mono);color:var(--green);letter-spacing:.08em}.timeline h4{font:600 1.15rem/1.3 var(--f-display);margin:6px 0 0}.tl-org{display:block;font:500 .85rem/1.4 var(--f-mono);color:var(--purple);margin:2px 0 6px}.timeline p{margin:0;font-size:.97rem}.sheet{padding:24px;position:relative}.sheet-top{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding-bottom:14px;border-bottom:1px dashed var(--line-strong);margin-bottom:26px}.sheet-top h3{font-size:.85rem;letter-spacing:.14em;text-transform:uppercase;color:var(--pink)}.sheet-top span{font-size:.75rem}.chip{display:grid;grid-template-columns:1fr auto 1fr;align-items:stretch;margin-bottom:28px}.chip-body{position:relative;width:108px;padding:22px 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