:root{--bg:#050914;--bg2:#07111f;--panel:#0a1424;--panel2:#0d1a2d;--line:rgba(128,177,220,.18);--text:#f5f8fc;--muted:#92a6bb;--cyan:#45dcff;--green:#57f1a8;--violet:#9e84ff;--orange:#ffb45a;--shadow:0 30px 80px rgba(0,0,0,.32);--shell:min(1180px,calc(100% - 48px))}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:82px}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"Noto Sans JP","Yu Gothic UI",Meiryo,sans-serif;line-height:1.65;overflow-x:hidden}a{color:inherit}img{max-width:100%;display:block}.shell{width:var(--shell);margin:0 auto}.skip-link{position:fixed;left:12px;top:-70px;z-index:9999;padding:10px 14px;background:#fff;color:#000}.skip-link:focus{top:12px}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.scroll-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:200;background:rgba(255,255,255,.03)}.scroll-progress i{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--cyan),var(--green));box-shadow:0 0 18px var(--cyan)}
.site-header{position:fixed;top:0;left:0;right:0;height:72px;z-index:150;background:rgba(5,9,20,.78);backdrop-filter:blur(22px);border-bottom:1px solid var(--line)}.site-header.scrolled{background:rgba(5,9,20,.95)}.header-shell{width:min(1420px,calc(100% - 40px));height:100%;margin:0 auto;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;min-width:max-content}.brand-mark{display:grid;place-items:center;width:36px;height:36px;border:1px solid rgba(69,220,255,.45);border-radius:10px;color:var(--cyan);font-weight:900}.brand-copy{display:grid;line-height:1.1}.brand-copy strong{font-size:13px;letter-spacing:.12em}.brand-copy small{font-size:12px;color:var(--muted);margin-top:4px}.nav-wrap{margin-left:auto;display:flex;align-items:center;gap:22px}.main-nav,.external-nav{display:flex;align-items:center;gap:16px}.main-nav a,.external-nav a{font-size:13px;text-decoration:none;color:#b8c7d7;transition:.2s}.main-nav a:hover,.main-nav a.active{color:#fff}.external-nav{padding-left:18px;border-left:1px solid var(--line);gap:7px}.external-nav a{display:flex;align-items:center;gap:5px;padding:7px 9px;border:1px solid var(--line);border-radius:8px}.external-nav b{color:var(--cyan);font-size:12px}.menu-toggle{display:none;margin-left:auto;width:44px;height:42px;border:1px solid var(--line);background:transparent;border-radius:10px}.menu-toggle i{display:block;width:18px;height:1px;background:#fff;margin:5px auto}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border:1px solid rgba(137,174,208,.25);border-radius:12px;background:rgba(255,255,255,.025);text-decoration:none;font-size:13px;font-weight:800;transition:.2s}.button:hover{transform:translateY(-2px);border-color:rgba(69,220,255,.65);background:rgba(69,220,255,.06)}.button.primary{background:var(--cyan);color:#031019;border-color:var(--cyan);box-shadow:0 10px 30px rgba(69,220,255,.18)}.button.compact{min-height:40px;padding:0 15px}.kicker,.eyebrow{margin:0 0 12px;color:var(--cyan);font-size:12px;font-weight:900;letter-spacing:.12em}.section{position:relative;padding:72px 0;border-top:1px solid rgba(125,166,204,.1)}.section-heading{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:48px;align-items:end;margin-bottom:34px}.section-heading h2,.current-copy h2{margin:0;font-size:clamp(34px,4.5vw,60px);line-height:1.14;letter-spacing:-.045em;text-wrap:balance}.section-heading h2 strong,.current-copy h2 strong{color:var(--cyan);font-weight:800}.section-heading>p,.current-copy>p{margin:0;color:var(--muted);font-size:14px}.reveal{opacity:0;transform:translateY(20px);transition:opacity .65s ease,transform .65s ease}.reveal.visible{opacity:1;transform:none}
.hero{min-height:calc(100vh - 10px);padding:108px 0 28px;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:center}.hero-grid-bg,.finale-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(65,219,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(65,219,255,.05) 1px,transparent 1px);background-size:58px 58px;mask-image:linear-gradient(to bottom,#000,transparent 88%)}.hero-layout{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center}.eyebrow{display:flex;align-items:center;gap:10px}.eyebrow em{font-style:normal;color:var(--green)}.hero-evolution{display:flex;align-items:center;gap:8px;margin:0 0 12px;font-size:12px;color:#7e93a8}.hero-evolution i{font-style:normal;color:#496277}.hero-evolution strong{color:var(--cyan)}.hero h1{margin:0;font-size:clamp(72px,9vw,136px);line-height:.78;letter-spacing:-.075em}.hero h1 span{color:transparent;-webkit-text-stroke:1px rgba(245,248,252,.9)}.hero-main{max-width:780px;margin:28px 0 0;font-size:clamp(22px,2.4vw,35px);line-height:1.4;letter-spacing:-.025em;text-wrap:balance}.hero-main strong{color:var(--cyan)}.hero-description{max-width:740px;margin:14px 0 0;color:var(--muted);font-size:14px}.hero-actions{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap}.hero-state-row{display:flex;gap:8px;margin-top:24px;flex-wrap:wrap}.state-chip{padding:10px 12px;border:1px solid var(--line);border-radius:11px;background:rgba(7,17,31,.7)}.state-chip span,.state-chip strong{display:block}.state-chip span{font-size:12px;color:#70869a}.state-chip strong{font-size:13px}.state-chip.accent{border-color:rgba(69,220,255,.35)}.state-chip.accent strong{color:var(--cyan)}
.hero-foundry{position:relative;aspect-ratio:1/1;max-width:520px;margin:auto}.foundry-orbit{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);border:1px solid rgba(69,220,255,.19);border-radius:50%}.orbit-outer{width:92%;height:92%}.orbit-mid{width:62%;height:62%;border-color:rgba(158,132,255,.22)}.foundry-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:150px;height:150px;border-radius:50%;display:grid;place-content:center;text-align:center;background:radial-gradient(circle,#123147,#07111f 72%);border:1px solid rgba(87,241,168,.42);box-shadow:0 0 60px rgba(69,220,255,.11)}.foundry-core span{font-size:12px;color:var(--green)}.foundry-core strong{font-size:34px}.foundry-core small{font-size:12px;color:var(--muted)}.orbit-label,.control-pill,.node{position:absolute;border:1px solid var(--line);background:rgba(7,17,31,.94);border-radius:10px;text-align:center}.orbit-label{padding:6px 10px;font-size:12px;color:var(--cyan)}.label-governance{top:18%;left:50%;transform:translateX(-50%)}.label-ai{bottom:16%;left:50%;transform:translateX(-50%)}.node{width:88px;padding:9px}.node b,.node small{display:block}.node b{font-size:13px}.node small{font-size:12px;color:var(--muted)}.node-a{left:8%;top:28%}.node-b{right:8%;top:28%}.node-c{left:3%;top:57%}.node-d{right:3%;top:57%}.node-e{left:18%;bottom:4%}.node-f{right:18%;bottom:4%}.control-pill{padding:5px 8px;font-size:12px;color:var(--violet)}.control-contract{left:19%;top:12%}.control-review{right:19%;top:12%}.control-evidence{left:50%;bottom:3%;transform:translateX(-50%)}.hero-bottom-line{position:relative;z-index:2;width:var(--shell);margin:22px auto 0;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;font-size:12px;color:#647b91}.hero-bottom-line i{height:1px;background:linear-gradient(90deg,var(--line),var(--cyan),var(--line))}.hero-bottom-line strong{color:var(--cyan)}
.evolution-track{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--panel)}.evolution-step{display:grid;grid-template-columns:42px 1fr;gap:10px;padding:22px;border-right:1px solid var(--line)}.evolution-step:last-child{border-right:0}.step-no{display:grid;place-content:center;width:32px;height:32px;border:1px solid var(--line);border-radius:9px;color:var(--cyan);font-size:12px}.evolution-step small{font-size:12px;color:#73889b}.evolution-step h3{margin:2px 0 6px;font-size:20px}.evolution-step p{margin:0;color:var(--muted);font-size:13px}.evolution-step.final{background:rgba(69,220,255,.035)}.evolution-step.final h3{color:var(--cyan)}.big-statement{margin:18px 0 0;padding:18px 22px;border-left:3px solid var(--cyan);background:rgba(69,220,255,.035);font-size:clamp(20px,2.8vw,34px);line-height:1.35}.big-statement span,.big-statement strong{display:inline}.big-statement strong{color:var(--cyan);margin-left:.4em}
.layer-stack{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.layer{padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--panel);min-height:190px}.layer>div{display:flex;justify-content:space-between}.layer>div span{color:var(--cyan);font-size:12px}.layer>div small{color:#748a9d}.layer h3{margin:28px 0 7px;font-size:20px}.layer p{margin:0;color:var(--muted);font-size:13px}.layer>strong{display:block;margin-top:18px;color:var(--cyan);font-size:13px}.human-layer{border-color:rgba(87,241,168,.25)}.human-layer>strong{color:var(--green)}.scope-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:10px}.scope-strip article{padding:14px;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.018)}.scope-strip span{display:block;font-weight:800;color:var(--cyan);font-size:14px}.scope-strip p{margin:3px 0 0;color:var(--muted);font-size:12px}
.model-section{background:#06101d}.model-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:14px}.comparison-board{display:grid;grid-template-columns:1fr 34px 1fr;gap:8px}.comparison-column{padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--panel)}.model-tag{display:inline-block;padding:4px 7px;border:1px solid var(--line);border-radius:999px;font-size:12px;color:#7c92a5}.comparison-column h3{margin:18px 0 12px;font-size:20px}.comparison-column ol{margin:0;padding-left:20px;color:#c8d4df;font-size:13px}.comparison-column li+li{margin-top:7px}.new-model{border-color:rgba(69,220,255,.32)}.new-model h3{color:var(--cyan)}.comparison-axis{display:grid;place-content:center;color:var(--cyan);font-size:20px}.workflow-machine{padding:18px;border:1px solid var(--line);border-radius:18px;background:var(--panel)}.workflow-human{display:flex;align-items:center;justify-content:space-between;padding:11px 13px;border:1px solid rgba(87,241,168,.28);border-radius:11px}.workflow-human span{color:var(--green);font-size:12px}.workflow-human strong{font-size:13px}.workflow-flow{display:grid;grid-template-columns:repeat(7,1fr);gap:5px;list-style:none;padding:0;margin:10px 0}.workflow-flow li{padding:10px 6px;border:1px solid var(--line);border-radius:10px;text-align:center;background:#081523}.workflow-flow b,.workflow-flow strong{display:block}.workflow-flow b{font-size:12px;color:#657c90}.workflow-flow strong{font-size:13px}.control-rail{display:grid;grid-template-columns:repeat(5,1fr);gap:5px}.control-rail span{padding:7px 5px;border:1px dashed rgba(158,132,255,.3);border-radius:8px;text-align:center;color:#b5a7ff;font-size:12px}.retry-loop{margin-top:8px;display:flex;align-items:center;gap:9px;padding:8px 10px;border-left:2px solid var(--orange);background:rgba(255,180,90,.04);font-size:12px}.retry-loop span{color:var(--orange)}.retry-loop i{font-style:normal;font-size:16px}
.proof-system-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:14px}.proof-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.proof-card{min-height:150px;padding:17px;border:1px solid var(--line);border-radius:14px;text-decoration:none;background:var(--panel);transition:.2s}.proof-card:hover{transform:translateY(-2px);border-color:rgba(69,220,255,.45)}.proof-card small{color:var(--cyan);font-size:12px}.proof-card h3{margin:20px 0 5px;font-size:19px}.proof-card p{margin:0;color:var(--muted);font-size:12px}.proof-card b{display:block;margin-top:14px;font-size:12px;color:var(--cyan)}.system-map{position:relative;min-height:466px;border:1px solid var(--line);border-radius:20px;background:radial-gradient(circle at 50% 48%,rgba(69,220,255,.09),transparent 30%),#07111f;overflow:hidden}.system-map svg{position:absolute;inset:0;width:100%;height:100%}.system-map path{fill:none;stroke:rgba(69,220,255,.18);stroke-width:1.5;stroke-dasharray:6 7;vector-effect:non-scaling-stroke}.system-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:158px;height:158px;border-radius:50%;display:grid;place-content:center;text-align:center;border:1px solid rgba(69,220,255,.4);background:radial-gradient(circle,#123147,#07111f 68%)}.system-core small{font-size:12px;color:var(--cyan)}.system-core strong{font-size:28px;line-height:1}.system-core span{font-size:12px;color:var(--muted);margin-top:5px}.system-node{position:absolute;width:118px;padding:11px;border:1px solid var(--line);border-radius:11px;background:rgba(9,22,38,.94);text-align:center}.system-node b,.system-node small{display:block}.system-node b{font-size:13px}.system-node small{font-size:12px;color:var(--muted)}.n-dify{left:5%;top:14%}.n-n8n{right:5%;top:14%}.n-ollama{left:5%;bottom:14%}.n-comfy{right:5%;bottom:14%}.n-git{left:50%;bottom:4%;transform:translateX(-50%)}.n-human{left:50%;top:4%;transform:translateX(-50%);border-color:rgba(87,241,168,.3)}.n-human b{color:var(--green)}.milestone-line{display:grid;grid-template-columns:repeat(4,1fr);margin-top:16px;border-top:1px solid var(--line)}.milestone{position:relative;padding:20px 16px 4px;border-right:1px solid var(--line)}.milestone:last-child{border-right:0}.milestone:before{content:"";position:absolute;top:-4px;left:16px;width:8px;height:8px;border-radius:50%;background:#4f667c}.milestone span{font-size:12px;color:#647b90}.milestone h3{margin:6px 0;font-size:14px}.milestone.current:before{background:var(--cyan);box-shadow:0 0 14px var(--cyan)}.milestone.current h3{color:var(--cyan)}
.current-shell{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:center}.current-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:20px}.status-panel{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.status-panel article{min-height:110px;padding:16px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}.status-panel span,.status-panel strong{display:block}.status-panel span{font-size:12px;color:#687f94}.status-panel strong{margin-top:22px;font-size:15px}.status-panel .ok{color:var(--green)}.accent-text{color:var(--cyan)}
.finale{position:relative;overflow:hidden;padding:72px 0;background:radial-gradient(circle at 75% 50%,rgba(69,220,255,.11),transparent 30%),#050914;border-top:1px solid var(--line)}.finale-grid{opacity:.65}.single-finale{position:relative;z-index:2}.finale-copy{max-width:980px}.finale-copy h2{font-size:clamp(48px,7vw,92px);line-height:1.02;letter-spacing:-.06em;margin:0;text-wrap:balance}.finale-copy h2 strong{color:var(--cyan)}.finale-copy>p:not(.kicker){color:var(--muted)}.finale-actions{display:flex;gap:9px;margin-top:20px;flex-wrap:wrap}.site-footer{padding:24px 0;border-top:1px solid var(--line);background:#040812}.footer-grid{display:flex;justify-content:space-between;gap:20px}.footer-grid>div:first-child{display:grid}.footer-grid strong{font-size:13px}.footer-grid span{font-size:12px;color:var(--muted)}.footer-grid>div:last-child{display:flex;gap:15px}.footer-grid a{font-size:12px;text-decoration:none;color:#7890a5}
@media(max-width:1080px){.hero-layout{grid-template-columns:1fr}.hero-foundry{width:min(520px,80vw);margin:18px auto 0}.model-grid,.proof-system-grid,.current-shell{grid-template-columns:1fr}.scope-strip{grid-template-columns:repeat(3,1fr)}.status-panel{grid-template-columns:1fr 1fr}.system-map{min-height:430px}}
@media(max-width:860px){html{scroll-padding-top:70px}.site-header{height:68px}.header-shell{width:calc(100% - 28px)}.brand-copy small{display:none}.menu-toggle{display:block}.nav-wrap{position:absolute;top:68px;left:14px;right:14px;display:none;align-items:stretch;flex-direction:column;gap:14px;padding:16px;border:1px solid var(--line);border-radius:14px;background:rgba(5,9,20,.98);box-shadow:var(--shadow)}.nav-wrap.open{display:flex}.main-nav,.external-nav{align-items:stretch;flex-direction:column;gap:5px}.main-nav a{padding:10px}.external-nav{padding:12px 0 0;border-left:0;border-top:1px solid var(--line);flex-direction:row}.external-nav a{flex:1;justify-content:center}.section{padding:58px 0}.section-heading{grid-template-columns:1fr;gap:12px}.evolution-track,.layer-stack{grid-template-columns:1fr}.evolution-step{border-right:0;border-bottom:1px solid var(--line)}.evolution-step:last-child{border-bottom:0}.scope-strip{grid-template-columns:1fr 1fr}.proof-grid{grid-template-columns:1fr 1fr}.milestone-line{grid-template-columns:1fr 1fr}.milestone{border-bottom:1px solid var(--line)}.hero{padding-top:96px}}
@media(max-width:580px){:root{--shell:calc(100% - 28px)}.hero h1{font-size:70px}.hero-evolution{font-size:12px;gap:5px;flex-wrap:wrap}.hero-foundry{width:100%;transform:scale(.94)}.hero-state-row{display:grid;grid-template-columns:1fr 1fr}.state-chip.accent{grid-column:span 2}.section-heading h2,.current-copy h2{font-size:38px;line-height:1.2}.big-statement{font-size:23px}.big-statement span,.big-statement strong{display:block;margin:0}.scope-strip,.proof-grid,.status-panel,.milestone-line{grid-template-columns:1fr}.comparison-board{grid-template-columns:1fr}.comparison-axis{height:28px}.workflow-flow{grid-template-columns:repeat(4,1fr)}.control-rail{grid-template-columns:repeat(3,1fr)}.system-map{min-height:650px}.system-map svg{display:none}.system-core{width:150px;height:150px}.n-dify{left:4%;top:10%}.n-n8n{right:4%;top:10%}.n-ollama{left:4%;bottom:10%}.n-comfy{right:4%;bottom:10%}.n-human{top:31%}.n-git{bottom:31%}.finale-copy h2{font-size:52px}.footer-grid{flex-direction:column}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}*{transition:none!important}}


/* =========================================================
   v4.0 Prototype r3 — semantic Japanese titles + RI board
   ========================================================= */

/* Large Japanese headlines break only at editorial meaning boundaries. */
.title-line{display:block}
.hero-main .title-line{display:block}

/* Ruby-like English helpers: deliberately readable, not micro-copy. */
.kicker{font-size:14px!important;line-height:1.45;letter-spacing:.11em}
.kicker span{margin-left:8px;font-size:13px;letter-spacing:.13em;color:#718da5}
.eyebrow{font-size:13px!important}
.eyebrow em{font-size:12px!important}
.node small{font-size:12px!important}
.system-node small{font-size:12px!important;line-height:1.35}
.system-core small{font-size:12px!important}
.system-core span{font-size:12px!important}
.proof-card small{font-size:13px!important;line-height:1.4}
.proof-card b{font-size:12px!important}
.workflow-flow b{font-size:12px!important}
.control-rail span{font-size:12px!important}
.status-panel span{font-size:12px!important}
.milestone span{font-size:12px!important}
.footer-grid span,.footer-grid a{font-size:12px!important}

/* Reference Implementations */
.projects-section{
  background:
    radial-gradient(circle at 12% 18%,rgba(69,220,255,.08),transparent 25%),
    radial-gradient(circle at 88% 75%,rgba(158,132,255,.08),transparent 24%),
    #060b14;
}
.ri-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px}
.ri-card{position:relative;min-height:265px;padding:20px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(145deg,rgba(11,27,46,.96),rgba(6,14,25,.96));overflow:hidden}
.ri-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:#536b80}
.ri-card.ri-live:before{background:var(--green)}
.ri-card.ri-active:before{background:var(--cyan);box-shadow:0 0 22px var(--cyan)}
.ri-card.ri-next{border-style:dashed;background:linear-gradient(145deg,rgba(13,22,37,.82),rgba(6,12,22,.9))}
.ri-card.ri-next:before{background:var(--purple)}
.ri-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.ri-head b{padding:5px 8px;border:1px solid var(--line);border-radius:999px;font-size:12px;color:#91a8bb;font-weight:700}
.ri-active .ri-head b{border-color:rgba(69,220,255,.35);color:var(--cyan)}
.ri-next .ri-head b{border-color:rgba(158,132,255,.35);color:#b6a7ff}
.ri-no{font-size:24px;font-weight:900;letter-spacing:-.04em}
.ri-kana{margin:18px 0 0;font-size:13px;line-height:1.45;letter-spacing:.08em;color:var(--cyan);font-weight:800}
.ri-card h3{margin:8px 0 8px;font-size:21px;line-height:1.3;letter-spacing:-.025em}
.ri-card>p:not(.ri-kana){margin:0;color:var(--muted);font-size:13px;line-height:1.8}
.ri-meta{display:flex;gap:6px;flex-wrap:wrap;margin-top:15px}
.ri-meta span{padding:6px 8px;border:1px solid var(--line);border-radius:8px;font-size:12px;color:#8299ad;background:rgba(255,255,255,.015)}

/* Parallel workstream graph — phase based, never fake percentages. */
.parallel-board{margin-top:14px;padding:20px;border:1px solid rgba(69,220,255,.18);border-radius:20px;background:linear-gradient(180deg,rgba(8,22,38,.94),rgba(5,12,22,.96));box-shadow:0 22px 55px rgba(0,0,0,.18)}
.parallel-board-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:14px}
.parallel-board-head>div{display:grid;gap:3px}
.parallel-board-head span{font-size:13px;color:var(--cyan);font-weight:800;letter-spacing:.09em}
.parallel-board-head strong{font-size:22px;letter-spacing:-.025em}
.parallel-board-head p{margin:0;color:#688096;font-size:12px}
.phase-legend{display:grid;grid-template-columns:215px repeat(5,1fr);gap:6px;margin-bottom:7px;padding-left:0;color:#668096}
.phase-legend:before{content:""}
.phase-legend span{text-align:center;font-size:12px;letter-spacing:.08em}
.project-rail{display:grid;grid-template-columns:215px 1fr;gap:14px;align-items:center;padding:11px 0;border-top:1px solid rgba(123,151,176,.12)}
.rail-title{display:grid;grid-template-columns:auto 1fr;column-gap:8px;align-items:baseline}
.rail-title b{font-size:13px;color:var(--cyan)}
.rail-title span{font-size:13px;font-weight:800}
.rail-title em{grid-column:1/-1;margin-top:2px;font-style:normal;font-size:12px;color:#70879b}
.rail-track{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:6px}
.rail-track:before{content:"";position:absolute;left:4%;right:4%;top:50%;height:1px;background:linear-gradient(90deg,rgba(69,220,255,.2),rgba(158,132,255,.15));z-index:0}
.rail-track i{position:relative;z-index:1;height:14px;border:1px solid rgba(111,140,166,.2);border-radius:999px;background:#0a1725;box-shadow:inset 0 0 0 2px rgba(5,9,20,.55)}
.rail-track i.done{border-color:rgba(87,241,168,.38);background:linear-gradient(90deg,rgba(87,241,168,.28),rgba(69,220,255,.18))}
.rail-track i.current{border-color:rgba(69,220,255,.78);background:linear-gradient(90deg,rgba(69,220,255,.6),rgba(158,132,255,.45));box-shadow:0 0 18px rgba(69,220,255,.35)}
.rail-track i.current:after{content:"";position:absolute;inset:3px;border-radius:inherit;background:rgba(255,255,255,.55);animation:railPulse 1.8s ease-in-out infinite}
.project-rail.future .rail-title b{color:#b5a6ff}
.project-rail.future .rail-track i.current{border-color:rgba(158,132,255,.72);background:rgba(158,132,255,.36);box-shadow:0 0 16px rgba(158,132,255,.28)}
@keyframes railPulse{0%,100%{opacity:.15;transform:scaleX(.55)}50%{opacity:.75;transform:scaleX(1)}}

/* Titles: protect short semantic units from ugly Japanese breaks. */
.section-heading h2 .title-line,
.current-copy h2 .title-line,
.finale-copy h2 .title-line{width:fit-content;max-width:100%}
.section-heading h2 strong.title-line,
.current-copy h2 strong.title-line,
.finale-copy h2 strong.title-line{color:var(--cyan)}
.hero-main strong.title-line{color:inherit}

@media(max-width:1080px){
  .ri-grid{grid-template-columns:1fr 1fr}
  .ri-next{grid-column:span 2;min-height:auto}
}
@media(max-width:860px){
  .phase-legend{grid-template-columns:170px repeat(5,1fr)}
  .project-rail{grid-template-columns:170px 1fr}
}
@media(max-width:640px){
  .title-line{display:block}
  .kicker{font-size:13px!important}
  .kicker span{display:block;margin:3px 0 0;font-size:12px}
  .ri-grid{grid-template-columns:1fr}
  .ri-next{grid-column:auto}
  .ri-card{min-height:auto}
  .parallel-board{padding:16px 13px}
  .parallel-board-head{display:grid;gap:5px}
  .parallel-board-head strong{font-size:19px}
  .phase-legend{grid-template-columns:1fr repeat(5,1fr);gap:3px}
  .phase-legend:before{content:""}
  .phase-legend span{font-size:12px}
  .project-rail{grid-template-columns:1fr;gap:8px;padding:12px 0}
  .rail-title{grid-template-columns:auto 1fr auto}
  .rail-title em{grid-column:auto;margin:0;text-align:right;font-size:12px}
  .rail-track{gap:4px}
  .rail-track i{height:12px}
}


/* =========================================================
   v4.0 Prototype r4 — visual enhancement
   ========================================================= */

.hero-layout{grid-template-columns:minmax(0,.94fr) minmax(480px,1.06fr);align-items:center}
.hero-art{margin:0;position:relative;min-width:0}
.hero-art-frame{position:relative;overflow:hidden;border:1px solid rgba(69,220,255,.26);border-radius:28px;background:#07111f;box-shadow:0 34px 90px rgba(0,0,0,.42),0 0 70px rgba(69,220,255,.08)}
.hero-art-frame:before{content:"";position:absolute;inset:0;z-index:2;border-radius:inherit;box-shadow:inset 0 0 0 1px rgba(255,255,255,.025);pointer-events:none}
.hero-art img{width:100%;aspect-ratio:16/9;object-fit:cover;object-position:center}
.hero-art-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,9,20,.03),rgba(5,9,20,0) 54%),linear-gradient(0deg,rgba(5,9,20,.72),transparent 38%)}
.hero-art-label{position:absolute;z-index:3;display:grid;gap:2px;padding:9px 11px;border:1px solid rgba(122,194,255,.25);border-radius:11px;background:rgba(5,12,25,.74);backdrop-filter:blur(10px);box-shadow:0 12px 28px rgba(0,0,0,.25)}
.hero-art-label span{font-size:12px;color:var(--cyan);font-weight:900;letter-spacing:.08em}
.hero-art-label strong{font-size:13px;white-space:nowrap}
.hero-art-label.label-human{left:4%;bottom:5%}
.hero-art-label.label-control{left:35%;bottom:5%}
.hero-art-label.label-team{right:4%;bottom:5%}
.hero-art figcaption{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:9px;padding:0 4px}
.hero-art figcaption span{font-size:12px;color:#68849b;letter-spacing:.12em;font-weight:900}
.hero-art figcaption strong{font-size:13px;color:#c7d6e4}

.evolution-pulse{display:flex;align-items:center;gap:9px;margin:18px 0 12px;padding:10px 14px;border:1px solid rgba(69,220,255,.15);border-radius:999px;background:rgba(8,21,36,.72);overflow:hidden}
.evolution-pulse span,.evolution-pulse strong{font-size:12px;letter-spacing:.12em;font-weight:900;white-space:nowrap}
.evolution-pulse span{color:#637c91}.evolution-pulse strong{color:var(--cyan)}
.evolution-pulse i{position:relative;display:block;flex:1;height:1px;background:linear-gradient(90deg,rgba(101,128,151,.3),rgba(69,220,255,.45))}
.evolution-pulse i:after{content:"";position:absolute;right:0;top:50%;width:5px;height:5px;border-radius:50%;background:var(--cyan);transform:translate(0,-50%);box-shadow:0 0 12px var(--cyan)}

.model-visual-card{position:relative;min-height:440px;border:1px solid rgba(69,220,255,.2);border-radius:22px;overflow:hidden;background:#07111f;box-shadow:0 24px 70px rgba(0,0,0,.28)}
.model-visual-card>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
.model-visual-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,9,20,.1),rgba(5,9,20,.48) 50%,rgba(5,9,20,.94) 100%)}
.model-visual-overlay{position:absolute;z-index:2;left:16px;right:16px;bottom:16px;display:grid;gap:9px;padding:14px;border:1px solid rgba(155,205,245,.17);border-radius:17px;background:rgba(5,12,24,.82);backdrop-filter:blur(12px)}
.model-visual-overlay .workflow-human{margin:0}
.model-visual-overlay .workflow-flow{margin:0}
.model-visual-overlay .control-rail{margin:0}
.model-visual-overlay .retry-loop{margin:0}

.parallel-board{position:relative;overflow:hidden;padding:20px 210px 20px 20px}
.parallel-board-content{position:relative;z-index:2}
.ri-guide{position:absolute;z-index:1;right:-18px;bottom:-20px;width:245px;height:340px;object-fit:cover;object-position:42% center;border-radius:40% 0 0 0;opacity:.92;filter:saturate(.92) contrast(1.03);mask-image:linear-gradient(to left,#000 72%,transparent 100%)}
.parallel-board:after{content:"";position:absolute;z-index:1;right:0;top:0;bottom:0;width:250px;background:radial-gradient(circle at 65% 45%,rgba(69,220,255,.11),transparent 58%);pointer-events:none}
.parallel-board .phase-legend{grid-template-columns:175px repeat(5,1fr)}
.parallel-board .project-rail{grid-template-columns:175px 1fr}

.projects-section .ri-card{transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease}
.projects-section .ri-card:hover{transform:translateY(-4px);border-color:rgba(69,220,255,.34);box-shadow:0 20px 48px rgba(0,0,0,.22)}
.projects-section .ri-active{box-shadow:inset 0 0 45px rgba(69,220,255,.035)}

.proof-section{background:radial-gradient(circle at 76% 45%,rgba(69,220,255,.055),transparent 26%),var(--bg)}
.system-map{box-shadow:inset 0 0 60px rgba(69,220,255,.025),0 22px 55px rgba(0,0,0,.18)}
.system-node{box-shadow:0 8px 24px rgba(0,0,0,.22)}
.system-core{box-shadow:0 0 55px rgba(69,220,255,.13)}

@media(max-width:1180px){
  .hero-layout{grid-template-columns:1fr}
  .hero-art{width:min(900px,100%);margin:22px auto 0}
}
@media(max-width:920px){
  .parallel-board{padding-right:145px}
  .ri-guide{width:180px;height:285px;right:-22px}
  .parallel-board .phase-legend{grid-template-columns:150px repeat(5,1fr)}
  .parallel-board .project-rail{grid-template-columns:150px 1fr}
}
@media(max-width:720px){
  .hero-art-label{padding:7px 8px}
  .hero-art-label span{font-size:12px}
  .hero-art-label strong{font-size:12px}
  .hero-art-label.label-human{left:3%;bottom:3%}
  .hero-art-label.label-control{left:38%;bottom:3%}
  .hero-art-label.label-team{right:3%;bottom:3%}
  .model-visual-card{min-height:500px}
  .parallel-board{padding:16px 13px 170px}
  .ri-guide{width:180px;height:215px;right:-4px;bottom:-35px;opacity:.78;mask-image:linear-gradient(to top,#000 55%,transparent 100%)}
  .parallel-board .phase-legend{grid-template-columns:1fr repeat(5,1fr)}
  .parallel-board .project-rail{grid-template-columns:1fr}
  .evolution-pulse{gap:5px;padding:8px 10px}
  .evolution-pulse span,.evolution-pulse strong{font-size:12px}
}
@media(max-width:520px){
  .hero-art-label.label-control{display:none}
  .hero-art-label strong{white-space:normal}
  .hero-art figcaption{align-items:flex-start;flex-direction:column;gap:2px}
  .model-visual-card{min-height:540px}
  .model-visual-overlay{left:9px;right:9px;bottom:9px;padding:10px}
  .model-visual-overlay .workflow-flow{grid-template-columns:repeat(4,1fr)}
  .model-visual-overlay .control-rail{grid-template-columns:repeat(3,1fr)}
}


/* =========================================================
   v4.0 Prototype r5 — typography normalization
   No micro-copy: readable hierarchy across the whole page.
   ========================================================= */

:root{
  --text-body:15px;
  --text-small:13px;
  --text-label:13px;
  --text-nav:14px;
}

body{font-size:var(--text-body);line-height:1.7}
.main-nav a,.external-nav a{font-size:var(--text-nav);font-weight:750}
.brand-copy strong{font-size:14px}
.brand-copy small{font-size:12px;line-height:1.35}
.button{font-size:14px}

.kicker{font-size:14px!important;line-height:1.45}
.kicker span{font-size:13px!important;line-height:1.4}
.eyebrow{font-size:13px!important}
.eyebrow em{font-size:12px!important}
.hero-evolution{font-size:13px}
.hero-description{font-size:15px;line-height:1.8}
.hero-bottom-line{font-size:12px}

.state-chip span{font-size:12px}
.state-chip strong{font-size:14px}

.evolution-step small{font-size:12px}
.evolution-step p{font-size:13px;line-height:1.75}
.step-no{font-size:12px}

.layer>div span,.layer>div small{font-size:12px}
.layer p{font-size:13px;line-height:1.75}
.layer>strong{font-size:13px}
.scope-strip p{font-size:12px;line-height:1.55}

.model-tag{font-size:12px}
.comparison-column ol{font-size:13px;line-height:1.7}
.workflow-human span,.workflow-human strong{font-size:13px}
.workflow-flow b{font-size:12px!important}
.workflow-flow strong{font-size:13px}
.control-rail span{font-size:12px!important}
.retry-loop{font-size:12px;line-height:1.5}

.proof-card small{font-size:12px!important}
.proof-card p{font-size:13px;line-height:1.65}
.proof-card b{font-size:12px!important}
.system-core small,.system-core span{font-size:12px!important}
.system-node b{font-size:14px}
.system-node small{font-size:12px!important}

.status-panel span{font-size:12px!important}
.status-panel strong{font-size:16px}
.footer-grid strong{font-size:13px}
.footer-grid span,.footer-grid a{font-size:12px!important}

.ri-head b{font-size:12px}
.ri-kana{font-size:13px}
.ri-card>p:not(.ri-kana){font-size:13px;line-height:1.75}
.ri-meta span{font-size:12px}
.parallel-board-head span{font-size:13px}
.parallel-board-head p{font-size:12px}
.phase-legend span{font-size:12px}
.rail-title b{font-size:14px}
.rail-title span{font-size:13px}
.rail-title em{font-size:12px;line-height:1.45}

.hero-art-label span{font-size:12px}
.hero-art-label strong{font-size:13px}
.hero-art figcaption span{font-size:12px}
.hero-art figcaption strong{font-size:13px}
.evolution-pulse span,.evolution-pulse strong{font-size:12px}

/* Slightly more room where larger text needs it. */
.state-chip{min-width:132px}
.evolution-step{gap:12px}
.proof-card{min-height:164px}
.ri-card{min-height:285px}
.project-rail{padding:13px 0}

/* Mobile: keep the text readable instead of collapsing to micro labels. */
@media(max-width:640px){
  .main-nav a,.external-nav a{font-size:13px}
  .kicker{font-size:13px!important}
  .kicker span{font-size:12px!important}
  .eyebrow{font-size:12px!important}
  .hero-description{font-size:14px}
  .hero-evolution{font-size:12px}
  .hero-art-label span{font-size:12px}
  .hero-art-label strong{font-size:12px}
  .phase-legend span{font-size:12px}
  .rail-title em{font-size:12px}
  .evolution-pulse span,.evolution-pulse strong{font-size:12px}
  .ri-meta span{font-size:12px}
}


/* =========================================================
   v4.0 Prototype r6 — hero collision fix + focused heading panels
   ========================================================= */

/* HERO: prevent title/image collision and stabilize glyph rendering */
.hero-layout{
  grid-template-columns:minmax(0,.84fr) minmax(560px,1.16fr)!important;
  gap:72px!important;
  align-items:center!important;
}
.hero-copy{
  position:relative;
  z-index:2;
  max-width:660px;
}
.hero-wordmark{
  display:grid;
  gap:2px;
  margin:0;
  max-width:100%;
  line-height:.9!important;
  letter-spacing:-.045em!important;
}
.hero-wordmark .hero-outline,
.hero-wordmark .hero-solid{
  display:block;
  white-space:nowrap;
}
.hero-wordmark .hero-outline{
  font-size:clamp(64px,8vw,118px);
  color:rgba(255,255,255,.06);
  -webkit-text-stroke:1px rgba(242,246,251,.88);
  text-shadow:0 0 18px rgba(69,220,255,.06);
  paint-order:stroke fill;
}
.hero-wordmark .hero-solid{
  font-size:clamp(76px,9.1vw,142px);
  color:#f5f8fb;
  letter-spacing:-.055em;
}
.hero-main{
  max-width:620px;
  margin-top:24px!important;
}
.hero-description{
  max-width:620px;
}
.hero-art{
  margin-top:20px;
}
.hero-art-frame{
  border-radius:30px;
}
.hero-art img{
  object-position:center top;
}
.hero-art-label.label-human{left:4%;bottom:5%}
.hero-art-label.label-control{left:34%;bottom:5%}
.hero-art-label.label-team{right:4%;bottom:5%}
.hero-bottom-line{
  margin-top:18px;
}

/* Make the model/finale headings feel intentionally contained,
   instead of a left-aligned heading sitting on a long empty background. */
.focused-heading{
  grid-template-columns:1fr!important;
  gap:14px!important;
  max-width:900px;
  margin-bottom:28px!important;
  padding:24px 26px;
  border:1px solid rgba(69,220,255,.16);
  border-radius:24px;
  background:
    linear-gradient(180deg,rgba(10,25,43,.92),rgba(6,14,25,.96)),
    radial-gradient(circle at 82% 28%,rgba(69,220,255,.09),transparent 28%);
  box-shadow:0 22px 60px rgba(0,0,0,.16);
}
.focused-heading > p{
  max-width:720px;
}

.finale-layout{
  align-items:flex-start;
}
.finale-copy{
  max-width:980px;
}
.finale-panel{
  max-width:900px;
  padding:26px 30px;
  border:1px solid rgba(69,220,255,.14);
  border-radius:26px;
  background:
    linear-gradient(180deg,rgba(8,18,31,.88),rgba(5,11,20,.94)),
    radial-gradient(circle at 85% 25%,rgba(69,220,255,.10),transparent 30%);
  box-shadow:0 24px 70px rgba(0,0,0,.18);
}
.finale-panel > p:not(.kicker){
  max-width:720px;
}

/* Slightly calmer title scaling in the finale */
.finale-copy h2{
  max-width:780px;
}

/* Responsive safety */
@media(max-width:1280px){
  .hero-layout{
    grid-template-columns:minmax(0,.9fr) minmax(460px,1.1fr)!important;
    gap:48px!important;
  }
  .hero-wordmark .hero-outline{
    font-size:clamp(60px,7.6vw,104px);
  }
  .hero-wordmark .hero-solid{
    font-size:clamp(72px,8.7vw,126px);
  }
}
@media(max-width:1180px){
  .hero-layout{
    grid-template-columns:1fr!important;
    gap:20px!important;
  }
  .hero-copy{
    max-width:none;
  }
  .hero-wordmark .hero-outline,
  .hero-wordmark .hero-solid{
    white-space:normal;
  }
  .hero-art{
    width:min(920px,100%);
    margin:8px auto 0;
  }
}
@media(max-width:860px){
  .focused-heading{
    padding:20px 18px;
    border-radius:20px;
  }
  .finale-panel{
    padding:22px 20px;
    border-radius:22px;
  }
}
@media(max-width:580px){
  .hero-wordmark{
    gap:0;
    line-height:.94!important;
  }
  .hero-wordmark .hero-outline{
    font-size:56px;
    letter-spacing:-.035em;
  }
  .hero-wordmark .hero-solid{
    font-size:68px;
    letter-spacing:-.045em;
  }
  .hero-main{
    max-width:none;
  }
}


/* =========================================================
   v4.0 Prototype r7 — fix awkward "A" in LOCAL AI
   Replace outlined glyph with soft filled treatment.
   ========================================================= */

.hero-wordmark .hero-outline{
  font-size:clamp(60px,7.6vw,108px)!important;
  color:transparent!important;
  background:linear-gradient(180deg,rgba(246,249,252,.36),rgba(246,249,252,.16));
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-stroke:0!important;
  text-shadow:
    0 1px 0 rgba(245,248,252,.20),
    0 0 18px rgba(69,220,255,.05);
  letter-spacing:-.035em!important;
  font-weight:900;
}
.hero-wordmark .hero-solid{
  margin-top:-4px;
}
@media(max-width:1280px){
  .hero-wordmark .hero-outline{
    font-size:clamp(56px,7vw,96px)!important;
  }
}
@media(max-width:580px){
  .hero-wordmark .hero-outline{
    font-size:52px!important;
    letter-spacing:-.025em!important;
  }
}


/* =========================================================
   v4.0 Prototype r8 — restore logo feel + enlarge evolution line
   ========================================================= */

/* Bring back the clean outlined LOCAL AI logo feel */
.hero-wordmark{
  gap:0!important;
}
.hero-wordmark .hero-outline{
  color:transparent!important;
  background:none!important;
  -webkit-background-clip:initial!important;
  background-clip:initial!important;
  -webkit-text-stroke:1.6px rgba(242,246,251,.88)!important;
  text-shadow:0 0 14px rgba(69,220,255,.03)!important;
  letter-spacing:-.04em!important;
  font-weight:900!important;
}
.hero-wordmark .hero-solid{
  margin-top:-10px!important;
  letter-spacing:-.06em!important;
}
@media(max-width:580px){
  .hero-wordmark .hero-solid{
    margin-top:-6px!important;
  }
}

/* Make the animated evolution line a real visual hook */
.hero-evolution{
  display:flex!important;
  align-items:center!important;
  gap:14px!important;
  margin:8px 0 20px!important;
  font-size:clamp(18px,2.1vw,28px)!important;
  line-height:1.25!important;
  font-weight:900!important;
  letter-spacing:-.02em!important;
  color:#a7c4da!important;
}
.hero-evolution i{
  color:#4b6a81!important;
  font-size:.95em!important;
}
.hero-evolution strong{
  color:var(--cyan)!important;
  text-shadow:0 0 20px rgba(69,220,255,.16);
}
@media(max-width:860px){
  .hero-evolution{
    gap:10px!important;
    font-size:clamp(16px,3.4vw,22px)!important;
    flex-wrap:wrap;
  }
}
@media(max-width:580px){
  .hero-evolution{
    gap:8px!important;
    font-size:17px!important;
  }
}


/* =========================================================
   v4.0 Prototype r9 — exact v3 logo + single-line evolution hero
   ========================================================= */

/* Hero layout: first row is the evolution line, second row is copy + art */
.hero-layout{
  display:grid!important;
  grid-template-columns:minmax(0,.92fr) minmax(500px,1.08fr)!important;
  grid-template-rows:auto auto!important;
  column-gap:56px!important;
  row-gap:18px!important;
  align-items:center!important;
}
.hero-evolution{
  grid-column:1 / -1!important;
  grid-row:1!important;
}
.hero-copy{
  grid-column:1!important;
  grid-row:2!important;
  max-width:none!important;
}
.hero-art{
  grid-column:2!important;
  grid-row:2!important;
  margin-top:0!important;
}

/* Exact current GitHub v3 title logo treatment */
.hero h1{
  margin:22px 0 30px!important;
  font-size:clamp(64px,8.6vw,118px)!important;
  line-height:.82!important;
  letter-spacing:-.075em!important;
  font-weight:950!important;
}
.hero h1 span{
  color:transparent!important;
  background:none!important;
  -webkit-background-clip:initial!important;
  background-clip:initial!important;
  -webkit-text-stroke:1px rgba(255,255,255,.82)!important;
  text-shadow:none!important;
}

/* Evolution animation: one uninterrupted hero line */
.hero-evolution{
  width:100%;
  display:flex!important;
  align-items:center!important;
  justify-content:center;
  gap:16px!important;
  margin:0!important;
  padding:14px 20px;
  border-top:1px solid rgba(69,220,255,.14);
  border-bottom:1px solid rgba(69,220,255,.14);
  background:linear-gradient(90deg,transparent,rgba(69,220,255,.035) 18%,rgba(69,220,255,.055) 50%,rgba(69,220,255,.035) 82%,transparent);
  font-size:clamp(22px,2vw,31px)!important;
  line-height:1.15!important;
  font-weight:900!important;
  letter-spacing:-.025em!important;
  color:#a9c4da!important;
  white-space:nowrap!important;
  overflow:hidden;
}
.hero-evolution span,
.hero-evolution i,
.hero-evolution strong{
  flex:0 0 auto;
  white-space:nowrap!important;
}
.hero-evolution i{
  font-size:.9em!important;
  color:#54768e!important;
}
.hero-evolution strong{
  min-width:13em;
  color:var(--cyan)!important;
  text-align:left;
  text-shadow:0 0 22px rgba(69,220,255,.18);
}

/* Keep the title/image relationship clean at desktop widths */
@media(max-width:1280px){
  .hero-layout{
    grid-template-columns:minmax(0,.94fr) minmax(440px,1.06fr)!important;
    column-gap:42px!important;
  }
  .hero h1{
    font-size:clamp(62px,8vw,104px)!important;
  }
  .hero-evolution{
    font-size:clamp(19px,1.85vw,26px)!important;
  }
}
@media(max-width:1080px){
  .hero-layout{
    grid-template-columns:1fr!important;
    grid-template-rows:auto auto auto!important;
  }
  .hero-evolution{
    grid-column:1!important;
    grid-row:1!important;
    justify-content:flex-start;
    font-size:clamp(17px,2.4vw,22px)!important;
  }
  .hero-copy{
    grid-column:1!important;
    grid-row:2!important;
  }
  .hero-art{
    grid-column:1!important;
    grid-row:3!important;
    width:min(900px,100%);
    margin:0 auto!important;
  }
}
@media(max-width:760px){
  .hero-evolution{
    justify-content:flex-start;
    gap:8px!important;
    padding:12px 4px;
    font-size:clamp(13px,3.15vw,18px)!important;
    overflow-x:auto;
    scrollbar-width:none;
  }
  .hero-evolution::-webkit-scrollbar{display:none}
  .hero-evolution strong{min-width:auto}
}
@media(max-width:580px){
  .hero h1{
    font-size:70px!important;
  }
}


/* =========================================================
   v4.0 Prototype r10 — hero logo font hotfix
   Keep Japanese body typography unchanged.
   ========================================================= */

/* v3's visible Windows rendering depended on Segoe UI fallback.
   Pin the hero wordmark to a Latin UI font so text-stroke does not
   use the Noto Sans JP Latin glyph in environments without Inter. */
.hero h1{
  font-family:"Segoe UI",Arial,Helvetica,sans-serif!important;
  font-variation-settings:normal;
  font-synthesis:none;
}
.hero h1 span{
  font-family:inherit!important;
}


/* =========================================================
   v4.0 Prototype r11 — mobile layout rebuild
   Mobile is a dedicated composition, not a squeezed desktop.
   ========================================================= */

@media(max-width:760px){

  /* ---------- Header ---------- */
  .site-header{height:66px}
  .header-shell{width:calc(100% - 24px);gap:10px}
  .brand-mark{width:34px;height:34px}
  .brand-copy strong{font-size:12px}
  .brand-copy small{display:none}
  .menu-toggle{width:40px;height:40px}
  .nav-wrap{
    top:66px;
    left:10px;
    right:10px;
    max-height:calc(100vh - 78px);
    overflow:auto;
  }

  /* ---------- Hero ---------- */
  .hero{
    min-height:auto;
    padding:86px 0 34px;
    justify-content:flex-start;
  }
  .hero-layout{
    grid-template-columns:1fr!important;
    grid-template-rows:auto auto auto!important;
    gap:18px!important;
  }

  /* Keep the animated line on ONE visible line, no horizontal scrolling. */
  .hero-evolution{
    grid-column:1!important;
    grid-row:1!important;
    width:100%;
    justify-content:center!important;
    gap:5px!important;
    padding:11px 0!important;
    margin:0!important;
    font-size:clamp(12px,3.15vw,14px)!important;
    letter-spacing:-.035em!important;
    white-space:nowrap!important;
    overflow:visible!important;
    border-top:1px solid rgba(69,220,255,.12);
    border-bottom:1px solid rgba(69,220,255,.12);
  }
  .hero-evolution span,
  .hero-evolution i,
  .hero-evolution strong{
    min-width:0!important;
    white-space:nowrap!important;
  }
  .hero-evolution strong{
    text-align:left;
  }

  .hero-copy{
    grid-column:1!important;
    grid-row:2!important;
    max-width:none!important;
  }
  .eyebrow{
    display:grid!important;
    gap:4px!important;
    margin-bottom:14px!important;
  }
  .eyebrow span,.eyebrow em{display:block}
  .hero h1{
    margin:12px 0 22px!important;
    font-size:clamp(56px,17.5vw,70px)!important;
    line-height:.84!important;
  }
  .hero-main{
    margin-top:0!important;
    font-size:clamp(23px,6.2vw,29px)!important;
    line-height:1.42!important;
  }
  .hero-description{
    margin-top:14px;
    font-size:14px!important;
    line-height:1.8!important;
  }
  .hero-actions{
    display:grid;
    grid-template-columns:1fr;
    gap:8px;
  }
  .hero-actions .button{width:100%}
  .hero-state-row{
    display:grid!important;
    grid-template-columns:1fr!important;
    gap:7px!important;
  }
  .state-chip,
  .state-chip.accent{
    grid-column:auto!important;
    min-width:0!important;
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:12px;
  }

  /* Hero artwork: image first, labels BELOW it instead of overlapping. */
  .hero-art{
    grid-column:1!important;
    grid-row:3!important;
    width:100%!important;
    margin:2px auto 0!important;
  }
  .hero-art-frame{
    display:grid;
    grid-template-columns:1fr;
    gap:7px;
    padding:7px!important;
    overflow:hidden;
    border-radius:20px!important;
  }
  .hero-art-frame img{
    grid-column:1;
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
    object-position:center top;
    border-radius:14px;
  }
  .hero-art-shade{display:none}
  .hero-art-label{
    position:static!important;
    display:flex!important;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    width:100%;
    padding:9px 11px!important;
    border-radius:10px!important;
    backdrop-filter:none;
  }
  .hero-art-label.label-human,
  .hero-art-label.label-control,
  .hero-art-label.label-team{
    left:auto!important;right:auto!important;bottom:auto!important;
  }
  .hero-art-label span{font-size:12px!important}
  .hero-art-label strong{
    font-size:12px!important;
    text-align:right;
    white-space:normal!important;
  }
  .hero-art figcaption{
    flex-direction:row!important;
    align-items:center!important;
    justify-content:space-between!important;
    gap:10px!important;
    padding:0 2px;
  }
  .hero-bottom-line{display:none}

  /* ---------- Generic section headings ---------- */
  .section{padding:52px 0}
  .section-heading,
  .focused-heading{
    display:grid!important;
    grid-template-columns:1fr!important;
    gap:12px!important;
    max-width:none!important;
  }
  .focused-heading{
    padding:18px 16px!important;
    border-radius:18px!important;
  }
  .section-heading h2,
  .current-copy h2{
    font-size:clamp(32px,9.5vw,40px)!important;
    line-height:1.18!important;
  }
  .section-heading>p,
  .focused-heading>p,
  .current-copy>p{
    font-size:14px!important;
    line-height:1.75;
  }

  /* ---------- Foundry layers / scope ---------- */
  .layer-stack{grid-template-columns:1fr!important}
  .layer{min-height:auto}
  .scope-strip{grid-template-columns:1fr 1fr!important}
  .scope-strip article:last-child{grid-column:1/-1}

  /* ---------- Human × AI ---------- */
  .model-grid{grid-template-columns:1fr!important}
  .comparison-board{
    grid-template-columns:1fr!important;
    gap:8px!important;
  }
  .comparison-axis{
    height:24px!important;
    transform:rotate(90deg);
  }

  /* On mobile, do NOT overlay dense workflow UI on the image. */
  .model-visual-card{
    min-height:0!important;
    display:block;
    overflow:hidden;
  }
  .model-visual-card>img{
    position:static!important;
    width:100%;
    height:auto!important;
    aspect-ratio:16/10;
    object-fit:cover;
  }
  .model-visual-card:after{display:none}
  .model-visual-overlay{
    position:static!important;
    display:grid;
    gap:9px;
    margin:0;
    padding:12px!important;
    border:0!important;
    border-top:1px solid var(--line)!important;
    border-radius:0!important;
    background:#07111f!important;
    backdrop-filter:none!important;
  }
  .workflow-flow{
    grid-template-columns:repeat(2,1fr)!important;
    gap:6px!important;
  }
  .workflow-flow li:last-child{grid-column:1/-1}
  .control-rail{
    grid-template-columns:repeat(2,1fr)!important;
  }
  .control-rail span:last-child{grid-column:1/-1}
  .retry-loop{align-items:flex-start}

  /* ---------- RI ---------- */
  .ri-grid{grid-template-columns:1fr!important}
  .ri-next{grid-column:auto!important}
  .parallel-board{
    padding:15px!important;
    border-radius:16px!important;
  }
  .ri-guide{display:none!important}
  .parallel-board:after{display:none}
  .parallel-board-head{
    display:grid!important;
    gap:5px!important;
    align-items:start!important;
  }
  .parallel-board-head strong{font-size:19px!important}
  .phase-legend{
    grid-template-columns:1fr repeat(5,minmax(0,1fr))!important;
    gap:3px!important;
  }
  .phase-legend span{font-size:10px!important}
  .project-rail{
    grid-template-columns:1fr!important;
    gap:8px!important;
    padding:12px 0!important;
  }
  .rail-title{
    grid-template-columns:auto 1fr!important;
  }
  .rail-title em{
    grid-column:1/-1!important;
    text-align:left!important;
  }

  /* ---------- Proof / system map ---------- */
  .proof-system-grid,
  .proof-grid{
    grid-template-columns:1fr!important;
  }

  /* Absolute-position system diagram becomes a readable card grid. */
  .system-map{
    min-height:0!important;
    display:grid!important;
    grid-template-columns:1fr 1fr;
    gap:8px;
    padding:10px;
    overflow:visible;
  }
  .system-map svg{display:none!important}
  .system-core{
    position:static!important;
    grid-column:1/-1;
    transform:none!important;
    width:auto!important;
    height:auto!important;
    border-radius:14px!important;
    padding:18px 12px;
  }
  .system-node,
  .n-dify,.n-n8n,.n-ollama,.n-comfy,.n-git,.n-human{
    position:static!important;
    transform:none!important;
    width:auto!important;
    inset:auto!important;
  }
  .system-node{min-height:78px;display:grid;place-content:center}

  /* ---------- Current ---------- */
  .current-shell{grid-template-columns:1fr!important;gap:22px!important}
  .status-panel{grid-template-columns:1fr!important}
  .status-panel article{
    min-height:auto!important;
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:14px;
  }
  .status-panel strong{margin-top:0!important;text-align:right}

  /* ---------- Finale ---------- */
  .finale{padding:52px 0}
  .finale-panel{
    max-width:none!important;
    padding:20px 17px!important;
    border-radius:20px!important;
  }
  .finale-copy h2{
    max-width:none!important;
    font-size:clamp(40px,12vw,50px)!important;
    line-height:1.08!important;
  }
  .finale-actions{
    display:grid;
    grid-template-columns:1fr;
  }
  .finale-actions .button{width:100%}

  /* ---------- Footer ---------- */
  .footer-grid{
    flex-direction:column!important;
    align-items:flex-start;
  }
  .footer-grid>div:last-child{
    flex-wrap:wrap;
  }
}

/* Extra narrow phones */
@media(max-width:380px){
  :root{--shell:calc(100% - 22px)}
  .hero-evolution{
    font-size:11.5px!important;
    gap:4px!important;
  }
  .hero h1{
    font-size:clamp(52px,17vw,62px)!important;
  }
  .scope-strip{grid-template-columns:1fr!important}
  .scope-strip article:last-child{grid-column:auto}
  .system-map{grid-template-columns:1fr}
  .system-core{grid-column:auto}
}


/* =========================================================
   v4.0 Prototype r12 — current version beacon
   ========================================================= */

.version-beacon{
  position:relative;
  display:grid;
  grid-template-columns:auto auto 1fr auto;
  align-items:center;
  gap:12px;
  width:min(100%,620px);
  margin:0 0 18px;
  padding:12px 14px;
  border:1px solid rgba(87,241,168,.36);
  border-radius:15px;
  background:
    linear-gradient(90deg,rgba(87,241,168,.10),rgba(69,220,255,.06) 58%,rgba(158,132,255,.05)),
    rgba(6,17,29,.9);
  text-decoration:none;
  box-shadow:0 14px 38px rgba(0,0,0,.18),inset 0 0 32px rgba(69,220,255,.025);
  overflow:hidden;
}
.version-beacon:before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:4px;
  background:linear-gradient(var(--green),var(--cyan));
  box-shadow:0 0 16px rgba(87,241,168,.45);
}
.version-beacon span{
  font-size:12px;
  font-weight:900;
  letter-spacing:.13em;
  color:var(--green);
  white-space:nowrap;
}
.version-beacon strong{
  font-family:"Segoe UI",Arial,Helvetica,sans-serif;
  font-size:29px;
  line-height:1;
  color:#fff;
  letter-spacing:-.04em;
}
.version-beacon em{
  font-size:12px;
  font-style:normal;
  font-weight:800;
  letter-spacing:.08em;
  color:#9bb0c4;
  white-space:nowrap;
}
.version-beacon b{
  font-size:12px;
  color:var(--cyan);
  white-space:nowrap;
}
.version-beacon:hover{
  border-color:rgba(69,220,255,.58);
  transform:translateY(-1px);
}

@media(max-width:760px){
  .version-beacon{
    grid-template-columns:1fr auto;
    gap:5px 10px;
    width:100%;
    margin-bottom:15px;
    padding:11px 12px 11px 15px;
  }
  .version-beacon span{font-size:11px}
  .version-beacon strong{
    grid-row:1 / span 2;
    grid-column:2;
    font-size:31px;
  }
  .version-beacon em{
    grid-column:1;
    font-size:11px;
  }
  .version-beacon b{display:none}
}