:root{
  --bg:#ffffff; --ink:#1d1d1f; --muted:#6e6e73; --line:#e8eaed; --gray50:#f5f5f7;
  --dark:#07160e; --dark-ink:#f2f7f3; --dark-muted:#9fb3a6; --dark-line:#1b3324;
  --brand:#007a00; --brand-light:#38b000;
  --wrap:1080px; --gutter:24px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"Inter","Noto Sans JP",-apple-system,BlinkMacSystemFont,"Hiragino Sans","Noto Sans CJK JP",sans-serif;
  font-size:17px;line-height:1.75;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.lang-ja{font-feature-settings:"palt" 1;letter-spacing:.01em}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.narrow{max-width:720px}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid rgba(0,0,0,.06)}
.nav-in{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter);height:52px;display:flex;align-items:center;gap:24px}
.brand img{height:22px;width:auto}
.links{display:flex;gap:22px;margin-left:auto;font-size:13px}
.links a,.switch{text-decoration:none;color:var(--ink);opacity:.8}
.links a:hover,.switch:hover{opacity:1}
.switch{font-size:12px;font-weight:600;border:1px solid var(--line);border-radius:999px;padding:3px 10px}
@media (max-width:760px){.links{display:none}.switch{margin-left:auto}}

/* hero */
.hero{min-height:calc(100svh - 52px);display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden}
.hero-in{padding-top:40px;padding-bottom:96px;will-change:transform,opacity}
.kicker{font-size:15px;font-weight:600;color:var(--brand);margin:0 0 18px;letter-spacing:.02em}
.hero-h{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.12;font-size:clamp(28px,7.2vw,88px)}
.lang-ja .hero-h{letter-spacing:-.01em;line-height:1.2;font-size:clamp(30px,7.2vw,80px)}
.hero-h .line{display:block;overflow:hidden}
.hero-h .line>span{display:inline-block;transform:translateY(105%);transition:transform 1.1s var(--ease)}
.hero.on .hero-h .line>span{transform:none}
.hero.on .hero-h .line:nth-child(2)>span{transition-delay:.12s}
.lead{max-width:34em;font-size:clamp(17px,2vw,21px);color:var(--muted);margin:32px 0 0;line-height:1.7}
.cue{position:absolute;left:50%;bottom:28px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;
  font-size:12px;color:var(--muted);text-decoration:none}
.cue i{width:1px;height:36px;background:linear-gradient(var(--muted),transparent);animation:cue 2s infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* sections */
.sec{padding:clamp(96px,14vw,168px) 0}
.light{background:var(--bg)}
.gray{background:var(--gray50)}
.dark{background:var(--dark);color:var(--dark-ink)}
.dark .label,.dark .intro,.dark p{color:var(--dark-muted)}
.dark h2,.dark h3{color:var(--dark-ink)}
.label{font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--muted);margin:0 0 14px}
h2{font-size:clamp(30px,5.4vw,56px);line-height:1.15;letter-spacing:-.015em;margin:0 0 28px;font-weight:700}
h3{font-size:19px;line-height:1.4;margin:0 0 6px;font-weight:600}
.intro{max-width:36em;font-size:19px;color:var(--muted);margin:0 0 56px}
.body p{max-width:36em;font-size:19px;margin:0 0 1em}

/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* facts */
.facts{list-style:none;padding:0;margin:72px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:32px;border-top:1px solid var(--line);padding-top:40px}
.fact{display:grid;grid-template-columns:auto 1fr;align-items:baseline;column-gap:4px}
.num{font-size:clamp(56px,8vw,96px);font-weight:700;letter-spacing:-.03em;line-height:1;color:var(--brand);font-variant-numeric:tabular-nums}
.unit{font-size:20px;font-weight:600}
.flabel{grid-column:1/-1;font-size:14px;color:var(--muted);margin-top:10px;line-height:1.6}
@media (max-width:760px){.facts{grid-template-columns:1fr;gap:28px}}

/* how */
.how{display:grid;grid-template-columns:5fr 6fr;gap:64px}
.how-sticky{position:sticky;top:120px;align-self:start}
.meter{height:2px;background:var(--dark-line);margin-top:24px;max-width:280px;border-radius:2px;overflow:hidden}
.meter i{display:block;height:100%;width:0;background:var(--brand-light);transition:width .4s var(--ease)}
.steps{list-style:none;margin:0;padding:0}
.step{padding:56px 0;border-top:1px solid var(--dark-line);opacity:.28;transition:opacity .6s var(--ease)}
.step:first-child{border-top:0;padding-top:0}
.step.active{opacity:1}
.sn{display:block;font-size:13px;font-weight:600;color:var(--brand-light);margin-bottom:10px;letter-spacing:.06em}
.step h3{font-size:clamp(24px,3vw,32px);margin-bottom:12px}
.step p{font-size:18px;margin:0;max-width:28em}
@media (max-width:860px){.how{grid-template-columns:1fr;gap:24px}.how-sticky{position:static}.step{opacity:1;padding:36px 0}}

/* timeline */
.timeline{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.t-item{display:grid;grid-template-columns:140px 1fr;gap:24px;padding:28px 0;border-bottom:1px solid var(--line)}
.ty{font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums;padding-top:3px}
.t-item p{margin:0;color:var(--muted);font-size:16px}
.t-item .role{color:var(--ink);font-size:15px;margin-bottom:4px}
.talk{margin:40px 0 0;font-size:15px;color:var(--muted)}
@media (max-width:640px){.t-item{grid-template-columns:1fr;gap:4px}}

/* offer */
.grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:#fff;border-radius:18px;padding:28px 26px}
.card p{margin:0;color:var(--muted);font-size:15px}
.forms{list-style:none;margin:56px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;border-top:1px solid var(--line);padding-top:32px}
.forms p{margin:0;color:var(--muted);font-size:15px}
.cta-row{margin:48px 0 0}
.btn{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;font-weight:600;font-size:17px;padding:14px 26px;border-radius:999px;transition:background .2s}
.btn:hover{background:#006400}
@media (max-width:860px){.grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.grid,.forms{grid-template-columns:1fr}}

/* next */
.ngrid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.ncard{background:var(--gray50);border-radius:22px;overflow:hidden;display:flex;flex-direction:column}
.ncard.wide{grid-column:1/-1}
.ntext{padding:30px 28px 32px}
.ntext p{margin:0;color:var(--muted);font-size:16px}
.badge{display:inline-block;font-size:12px;font-weight:600;color:var(--brand);border:1px solid rgba(0,122,0,.35);border-radius:999px;padding:2px 10px;margin-bottom:14px}
.more{display:inline-block;margin-top:14px;font-size:16px;font-weight:500;color:var(--brand);text-decoration:none}
.more:hover{text-decoration:underline}
.nimg{margin:0;position:relative}
.nimg img{width:100%;aspect-ratio:16/8;object-fit:cover}
.nimg figcaption{position:absolute;left:16px;bottom:12px;font-size:12px;color:#fff;background:rgba(0,0,0,.45);padding:3px 10px;border-radius:999px}
@media (max-width:760px){.ngrid{grid-template-columns:1fr}}

/* lab */
.big-links{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.big-link{display:flex;flex-direction:column;justify-content:space-between;min-height:180px;padding:28px;border:1px solid var(--dark-line);border-radius:22px;text-decoration:none;transition:border-color .3s,background .3s}
.big-link span{font-size:clamp(36px,5vw,56px);font-weight:700;letter-spacing:-.02em;color:var(--dark-ink)}
.big-link small{font-size:14px;color:var(--dark-muted)}
.big-link:hover{border-color:var(--brand-light);background:#0b0b0c}
@media (max-width:560px){.big-links{grid-template-columns:1fr}}

/* profile */
.prof{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start}
.portrait{margin:0;border-radius:22px;overflow:hidden;position:sticky;top:96px}
.pname{font-size:24px;font-weight:700;margin:0}
.pname span{display:block;font-size:14px;font-weight:500;color:var(--muted);margin-top:2px}
.prole{font-size:15px;color:var(--muted);margin:6px 0 32px}
.father{display:grid;grid-template-columns:110px 1fr;gap:18px;align-items:center;margin:36px 0;padding:20px;background:var(--gray50);border-radius:18px}
.father figure{margin:0}
.father img{border-radius:10px;filter:grayscale(.15)}
.father figcaption{font-size:11px;color:var(--muted);margin-top:6px;line-height:1.4}
.father p{margin:0;font-size:16px}
.bio{font-size:16px;color:var(--muted)}
.future{font-size:21px;font-weight:600;margin:32px 0 0;line-height:1.5}
@media (max-width:860px){.prof{grid-template-columns:1fr;gap:32px}.portrait{position:static;max-width:420px}}

/* contact */
.co{display:grid;grid-template-columns:9em 1fr;margin:64px 0 0;border-top:1px solid var(--line);font-size:16px}
.co dt,.co dd{margin:0;padding:14px 0;border-bottom:1px solid var(--line)}
.co dt{color:var(--muted)}
@media (max-width:560px){.co{grid-template-columns:1fr}.co dt{border-bottom:0;padding-bottom:0}.co dd{padding-top:2px}}

/* sub */
.sub{padding-top:96px}
.sub-h{font-size:clamp(32px,5vw,48px);margin:0 0 40px}

/* footer */
.foot{border-top:1px solid var(--line);background:var(--gray50);font-size:12px;color:var(--muted)}
.foot-in{display:flex;justify-content:space-between;gap:16px;padding-top:22px;padding-bottom:28px;flex-wrap:wrap}
.foot-links{display:flex;gap:18px}
.foot a{text-decoration:none;color:var(--muted)}
.foot a:hover{color:var(--ink)}

@media (max-width:480px){
  body{font-size:16px}
  .intro,.body p{font-size:17px}
  .wrap{padding:0 16px}.nav-in{padding:0 16px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .hero-h .line>span{transform:none;transition:none}
  .cue i{animation:none}
  .step{opacity:1}
}

/* ===== motion layer v2.1 ===== */
.hero-in{transform:translateY(calc(var(--sy,0) * .18px)) scale(calc(1 - var(--hp,0) * .06));opacity:calc(1 - var(--hp,0) * 1.1);transform-origin:50% 60%}
.hero{background:
  radial-gradient(60% 50% at 80% 20%, rgba(0,122,0,.07), transparent 70%),
  radial-gradient(50% 40% at 10% 90%, rgba(56,176,0,.06), transparent 70%), #fff}

/* kinetic band */
.band{overflow:hidden;background:var(--brand);color:#fff;transform:rotate(-3deg) scale(1.08);margin:-20px 0 -10px;position:relative;z-index:2}
.band-in{white-space:nowrap;padding:14px 0;font-weight:700;font-size:clamp(18px,3.2vw,30px);letter-spacing:.04em}
.band-in span{display:inline-block;transform:translateX(calc(var(--bx,0) * -1px));will-change:transform}

/* facts: typographic numbers */
.facts{list-style:none;padding:48px 0 0;margin:64px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:40px 32px;border-top:1px solid var(--line)}
.fact{display:flex;flex-direction:column;align-items:flex-start;position:relative}
.numwrap{display:inline-flex;align-items:baseline;gap:6px;line-height:.9}
.num{font-size:clamp(88px,11vw,136px);font-weight:700;letter-spacing:-.05em;color:var(--brand);font-variant-numeric:tabular-nums;line-height:.9}
.unit{font-size:clamp(16px,2vw,22px);font-weight:600;color:var(--ink)}
.flabel{font-size:15px;color:var(--muted);margin-top:16px;line-height:1.6;max-width:16em;border-top:1px solid var(--line);padding-top:12px}
@media (max-width:760px){.facts{grid-template-columns:1fr;gap:28px;padding-top:36px}.fact{flex-direction:row;align-items:baseline;gap:14px}.numwrap{min-width:3.2em;gap:4px}.num{font-size:84px}.unit{font-size:15px}.flabel{margin-top:0;border-top:0;padding-top:0;max-width:none;flex:1;font-size:15px}}

/* timeline draw */
.tl-wrap{position:relative;padding-left:28px}
.tl-line{position:absolute;left:0;top:0;width:2px;height:calc(var(--tp,0) * 100%);background:linear-gradient(var(--brand-light),var(--brand));border-radius:2px;transition:height .25s linear}
.tl-wrap .timeline{border-top:0}
.t-item{position:relative;transition:opacity .5s var(--ease),transform .5s var(--ease)}
.t-item::before{content:"";position:absolute;left:-33px;top:36px;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--line);transition:border-color .4s,background .4s}
.t-item.lit::before{border-color:var(--brand);background:var(--brand)}
.t-item:not(.lit){opacity:.45}
@media (max-width:640px){.tl-wrap{padding-left:22px}.t-item::before{left:-27px;top:30px}}

/* how meter scroll-linked */
.meter i{width:calc(var(--mp,0) * 100%);transition:none}
.dark{background:
  radial-gradient(70% 60% at 100% 0%, rgba(56,176,0,.14), transparent 60%),
  radial-gradient(60% 50% at 0% 100%, rgba(0,122,0,.12), transparent 60%), var(--dark)}

/* zoom on scroll */
[data-zoom]{overflow:hidden}
[data-zoom] img{transform:scale(calc(1.18 - var(--zp,0) * .18));transform-origin:50% 40%;will-change:transform}
.portrait img{filter:none}
.portrait{border-radius:0;background:#fff}

/* offer card lift */
.card{transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.card:hover{transform:translateY(-4px)}

/* staggered reveal */
.grid .card:nth-child(2),.ngrid .ncard:nth-child(2){transition-delay:.08s}
.grid .card:nth-child(3),.ngrid .ncard:nth-child(3){transition-delay:.16s}
.grid .card:nth-child(4),.ngrid .ncard:nth-child(4){transition-delay:.24s}
.grid .card:nth-child(5),.ngrid .ncard:nth-child(5){transition-delay:.32s}
.reveal{transform:translateY(36px) scale(.985)}
.reveal.in{transform:none}

@media (prefers-reduced-motion:reduce){
  .hero-in,[data-zoom] img,.band-in span{transform:none!important;opacity:1!important}
  .ring .arc{stroke-dashoffset:0}
  .tl-line{height:100%}.t-item:not(.lit){opacity:1}
}

/* ===== v2.2 diagrams ===== */
/* org diagram */
.org{margin:56px 0 0;max-width:460px}
.org svg{overflow:visible}
.org svg{width:100%;height:auto;display:block;font-family:inherit}
.org .o-link{stroke:var(--line);stroke-width:1.5;stroke-dasharray:140;stroke-dashoffset:140;transition:stroke-dashoffset 1s var(--ease)}
.org.in .o-link{stroke-dashoffset:0}
.org .o-node rect{fill:#fff;stroke:var(--brand);stroke-width:1.5;opacity:0;transform-origin:center;transform:scale(.9);transition:opacity .6s var(--ease),transform .6s var(--ease);transition-delay:calc(.5s + var(--i) * .12s)}
.org.in .o-node rect{opacity:1;transform:none}
.org .o-node text{font-size:13px;font-weight:600;fill:var(--ink);text-anchor:middle;opacity:0;transition:opacity .6s;transition-delay:calc(.7s + var(--i) * .12s)}
.org .o-node .o-ai{font-size:10px;font-weight:700;fill:var(--brand);letter-spacing:.08em;text-anchor:middle}
.org.in .o-node text{opacity:1}
.org .o-center circle{fill:var(--brand)}
.org .o-center text{font-size:14px;font-weight:700;fill:#fff;text-anchor:middle}
.org figcaption{font-size:14px;color:var(--muted);margin-top:4px}

/* breakdown bar */
.bar{margin:0 0 64px}
.bar-t{font-size:13px;font-weight:600;color:var(--muted);margin:0 0 12px;letter-spacing:.04em}
.bar-track{display:flex;height:14px;border-radius:999px;overflow:hidden;background:var(--line);gap:2px}
.bar-track i{display:block;width:0;background:color-mix(in srgb, var(--brand) calc(100% - var(--i) * 13%), #bfe3bf);transition:width 1.1s var(--ease);transition-delay:calc(var(--i) * .1s)}
.bar.in .bar-track i{width:var(--w)}
.bar-legend{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--muted)}
.bar-legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;vertical-align:-1px;background:color-mix(in srgb, var(--brand) calc(100% - var(--i) * 13%), #bfe3bf)}
.bar-legend span{margin-left:4px;color:var(--ink);font-variant-numeric:tabular-nums}

/* scroll timeline（巻物） */
.scroll-tl{position:relative;padding-left:84px;margin-top:8px;padding-bottom:28px}
.tl-rail{position:absolute;left:60px;top:0;bottom:0;width:2px;background:var(--line)}
.tl-line{position:absolute;left:60px;top:0;width:2px;height:calc(var(--tp,0) * 100%);background:var(--brand);border-radius:2px}
.scroll-tl .timeline{list-style:none;margin:0;padding:0;border:0}
.scroll-tl .t-item{display:block;position:relative;border:0;padding:0 0 8px;min-height:calc(var(--yrs) * 30px);grid-template-columns:none}
.scroll-tl .t-item::before{content:"";position:absolute;left:-30px;top:6px;width:14px;height:14px;border-radius:50%;background:#fff;border:2px solid var(--line);transition:border-color .4s,background .4s,transform .4s}
.scroll-tl .t-item.lit::before{border-color:var(--brand);background:var(--brand);transform:scale(1.15)}
.scroll-tl .t-item:not(.lit){opacity:.4}
.tick{position:absolute;left:-84px;top:2px;width:48px;text-align:right;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.tick b{font-weight:600;color:var(--ink)}
.tick-end{top:auto;bottom:-10px;left:0}
.tick-end::after{content:"";position:absolute;right:-19px;top:2px;width:14px;height:14px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(0,122,0,.15)}
.t-body{padding-top:0}
.t-body .ty{display:block;margin-bottom:2px}
.t-body h3{margin-bottom:4px}
@media (max-width:640px){.scroll-tl{padding-left:68px}.tl-rail,.tl-line{left:48px}.tick{left:-68px;width:38px;font-size:11px}.scroll-tl .t-item::before{left:-26px}.tick-end{left:0}.tick-end::after{right:-17px}}

/* loop diagram */
.loop{width:min(100%,300px);height:auto;display:block;margin-top:28px;font-family:inherit;overflow:visible}
.l-rail{fill:none;stroke:var(--dark-line);stroke-width:2}
.l-prog{fill:none;stroke:var(--brand-light);stroke-width:3;stroke-linecap:round;stroke-dasharray:var(--c);stroke-dashoffset:calc(var(--c) * (1 - var(--mp,0)));transform:rotate(-90deg);transform-origin:150px 150px}
.l-arrow{fill:var(--dark-line)}
.l-node circle{fill:var(--dark);stroke:var(--dark-line);stroke-width:2;transition:stroke .4s,fill .4s}
.l-node text{font-size:12px;font-weight:600;fill:var(--dark-muted);text-anchor:middle;transition:fill .4s}
.l-node.active circle{stroke:var(--brand-light);fill:#0e2a1a}
.l-node.active text{fill:#fff}
@media (max-width:860px){.loop{margin:12px auto 0}}
@media (prefers-reduced-motion:reduce){.org .o-link{stroke-dashoffset:0}.org .o-node rect,.org .o-node text{opacity:1;transform:none}.bar .bar-track i{width:var(--w)}.scroll-tl .t-item:not(.lit){opacity:1}}