:root{
  --ink:#0B0B10;
  --ink-2:#15151C;
  --paper:#F3F1EC;
  --paper-2:#EAE6DE;
  --line:rgba(11,11,16,.12);
  --line-dark:rgba(255,255,255,.1);
  --text:#1A1A20;
  --muted:#6B6A72;
  --muted-dark:rgba(243,241,236,.55);
  --accent:#E07A62;
  --accent-deep:#C9604A;
  --font:"Noto Sans JP","Inter",sans-serif;
  --en:"Inter","Noto Sans JP",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,monospace;
  --wrap:1180px;
  --gutter:clamp(16px,4vw,40px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--paper);color:var(--text);line-height:1.8;font-feature-settings:"palt";overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}

/* ---------- label ---------- */
.label{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);display:inline-flex;align-items:center;gap:12px}
.label::before{content:"";width:28px;height:1px;background:currentColor}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 26px;border-radius:999px;font-weight:700;font-size:14px;letter-spacing:.04em;transition:transform .25s,background .25s,color .25s,border-color .25s;white-space:nowrap}
.btn .arr{transition:transform .25s}
.btn:hover .arr{transform:translateX(4px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-deep)}
.btn-ghost{border:1px solid rgba(255,255,255,.25);color:var(--paper)}
.btn-ghost:hover{border-color:var(--paper)}
.btn-ink{border:1px solid var(--line);color:var(--text)}
.btn-ink:hover{border-color:var(--text)}

/* ---------- header ---------- */
header{position:fixed;inset:0 0 auto;z-index:50;transition:background .3s,backdrop-filter .3s,border-color .3s;border-bottom:1px solid transparent}
header.scrolled{background:rgba(11,11,16,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-color:var(--line-dark)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{font-family:var(--en);font-weight:700;font-size:22px;color:var(--paper);display:flex;align-items:center;gap:8px;letter-spacing:-.01em}
.logo i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block}
.nav ul{display:flex;gap:32px;list-style:none}
.nav ul a{font-family:var(--en);font-size:12px;letter-spacing:.14em;color:var(--muted-dark);transition:color .2s}
.nav ul a:hover{color:var(--paper)}
.nav .btn{padding:10px 20px;font-size:13px}
.menu-btn{display:none;background:none;border:0;color:var(--paper);width:40px;height:40px;cursor:pointer}
.menu-btn span{display:block;width:22px;height:1.5px;background:currentColor;margin:6px auto;transition:transform .3s,opacity .3s}
body.menu-open .menu-btn span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
body.menu-open .menu-btn span:nth-child(2){opacity:0}
body.menu-open .menu-btn span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
.drawer{position:fixed;inset:0;background:var(--ink);z-index:40;display:flex;flex-direction:column;justify-content:center;padding:0 32px;gap:22px;opacity:0;pointer-events:none;transition:opacity .3s}
.drawer a{font-size:26px;font-weight:700;color:var(--paper)}
.drawer a small{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--accent);font-weight:400}
body.menu-open .drawer{opacity:1;pointer-events:auto}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100svh;background:var(--ink);color:var(--paper);display:flex;align-items:center;overflow:hidden;padding:120px 0 80px}
#stars{position:absolute;inset:0;width:100%;height:100%}
.hero::after{content:"";position:absolute;right:-20vw;top:10%;width:70vw;height:70vw;max-width:900px;max-height:900px;background:radial-gradient(circle,rgba(224,122,98,.18),transparent 60%);pointer-events:none}
.hero .wrap{position:relative;z-index:2;width:100%}
.hero h1{font-size:clamp(40px,7.4vw,96px);line-height:1.18;font-weight:900;letter-spacing:-.02em;margin:28px 0 36px}
.hero h1 .ac{color:var(--accent)}
.hero h1 .dim{color:rgba(255,255,255,.32);font-weight:500}
.hero-bottom{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap}
.hero-bottom p{max-width:460px;color:var(--muted-dark);font-size:15px}
.hero-bottom p strong{color:var(--paper);font-weight:500}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.scroll-cue{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:var(--muted-dark);z-index:2}
.scroll-cue::after{content:"";display:block;width:1px;height:36px;background:linear-gradient(var(--accent),transparent);margin:10px auto 0;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}}

/* ---------- marquee ---------- */
.marquee{background:var(--ink);border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);overflow:hidden;padding:18px 0}
.marquee-track{display:flex;gap:48px;width:max-content;animation:mq 40s linear infinite}
.marquee span{font-family:var(--en);font-size:14px;letter-spacing:.12em;color:var(--muted-dark);display:flex;align-items:center;gap:48px;white-space:nowrap}
.marquee span::after{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent)}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------- section ---------- */
section{padding:clamp(88px,12vw,150px) 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:clamp(48px,6vw,72px)}
.sec-head h2{font-size:clamp(28px,4vw,44px);line-height:1.4;font-weight:900;letter-spacing:-.01em;margin-top:18px}
.sec-head p{max-width:420px;color:var(--muted);font-size:15px}

/* ---------- concept ---------- */
.concept{background:var(--paper)}
.concept-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,6vw,96px);align-items:center}
.concept h2{font-size:clamp(28px,4.2vw,48px);line-height:1.45;font-weight:900;margin-top:18px}
.concept h2 s{text-decoration:none;color:var(--muted);font-weight:500;position:relative}
.concept h2 s::after{content:"";position:absolute;left:-2%;right:-2%;top:54%;height:2px;background:var(--accent)}
.concept-body p{color:var(--muted);margin-bottom:18px}
.concept-body p strong{color:var(--text)}

/* ---------- steps (build → teach → handover) ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);margin-top:clamp(56px,7vw,88px);border-top:1px solid var(--line)}
.step{padding:36px 32px 36px 0;position:relative}
.step+.step{padding-left:32px;border-left:1px solid var(--line)}
.step .no{font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:.1em}
.step h3{font-size:22px;font-weight:900;margin:14px 0 4px}
.step h3 em{font-style:normal;font-family:var(--en);font-weight:500;font-size:13px;color:var(--muted);margin-left:10px;letter-spacing:.06em}
.step p{color:var(--muted);font-size:14px}
.step .bar{height:4px;border-radius:2px;background:var(--paper-2);margin-top:22px;overflow:hidden}
.step .bar i{display:block;height:100%;background:var(--accent)}
.step .bar-label{display:flex;justify-content:space-between;font-family:var(--mono);font-size:10px;color:var(--muted);margin-top:8px;letter-spacing:.06em}

/* ---------- services ---------- */
.services{background:var(--ink);color:var(--paper)}
.services .sec-head p{color:var(--muted-dark)}
.svc{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(32px,5vw,72px);padding:clamp(40px,5vw,64px) 0;border-top:1px solid var(--line-dark);align-items:start}
.svc:last-of-type{border-bottom:1px solid var(--line-dark)}
.svc-tag{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--accent)}
.svc h3{font-size:clamp(26px,3.4vw,38px);line-height:1.35;font-weight:900;margin:14px 0 18px}
.svc-lead{color:var(--muted-dark);font-size:15px}
.svc ul{list-style:none;display:grid;gap:0}
.svc li{display:grid;grid-template-columns:44px 1fr;gap:4px 16px;padding:20px 0;border-bottom:1px solid var(--line-dark)}
.svc li:first-child{padding-top:0}
.svc li b{font-family:var(--mono);font-size:12px;color:var(--accent);font-weight:400;padding-top:3px}
.svc li strong{font-size:16px;font-weight:700;display:block}
.svc li span{grid-column:2;color:var(--muted-dark);font-size:14px}
.svc-foot{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.chip{font-size:12px;padding:6px 14px;border:1px solid var(--line-dark);border-radius:999px;color:var(--muted-dark)}
.svc-other{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding:28px 0 0;color:var(--muted-dark);font-size:14px}
.svc-other a{color:var(--paper);border-bottom:1px solid var(--accent);padding-bottom:2px}

/* ---------- reasons ---------- */
.reasons-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.reason{background:#fff;border-radius:20px;padding:36px 30px;border:1px solid var(--line);transition:transform .3s,box-shadow .3s}
.reason:hover{transform:translateY(-4px);box-shadow:0 20px 40px -24px rgba(11,11,16,.25)}
.reason .num{font-family:var(--en);font-size:44px;font-weight:700;color:var(--accent);line-height:1;letter-spacing:-.03em}
.reason .num small{font-size:16px;margin-left:4px;font-weight:600}
.reason h3{font-size:18px;font-weight:900;margin:22px 0 10px}
.reason p{color:var(--muted);font-size:14px}

/* ---------- works ---------- */
.works{background:var(--paper-2)}
.works-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.work{background:var(--paper);border-radius:20px;padding:32px 28px;display:flex;flex-direction:column;min-height:340px;border:1px solid var(--line);transition:border-color .3s}
.work:hover{border-color:var(--accent)}
.work .meta{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted)}
.work .meta b{color:var(--accent);font-weight:400}
.work h3{font-size:19px;font-weight:900;line-height:1.55;margin:22px 0 14px}
.work p{color:var(--muted);font-size:14px;flex:1}
.work .go{align-self:flex-end;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;margin-top:18px;transition:background .3s,color .3s,border-color .3s}
.work:hover .go{background:var(--accent);color:#fff;border-color:var(--accent)}

/* ---------- message ---------- */
.message{background:var(--ink);color:var(--paper);position:relative;overflow:hidden}
.message blockquote{font-size:clamp(24px,3.6vw,42px);line-height:1.6;font-weight:900;margin:28px 0 40px;max-width:900px}
.message blockquote .ac{color:var(--accent)}
.message-body{display:grid;grid-template-columns:1fr 1.4fr;gap:48px;border-top:1px solid var(--line-dark);padding-top:40px}
.message-body .who strong{display:block;font-size:18px}
.message-body .who span{font-family:var(--en);font-size:12px;letter-spacing:.1em;color:var(--muted-dark)}
.message-body p{color:var(--muted-dark);font-size:15px;margin-bottom:16px}

/* ---------- flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
.flow-item{padding:32px 24px 8px 0}
.flow-item+.flow-item{padding-left:24px;border-left:1px solid var(--line)}
.flow-item .no{font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:.12em}
.flow-item h3{font-size:17px;font-weight:900;margin:12px 0 8px}
.flow-item p{font-size:14px;color:var(--muted)}
.flow-badge{display:inline-flex;align-items:baseline;gap:6px;font-weight:900;font-size:clamp(28px,4vw,44px);margin-top:18px}
.flow-badge b{font-family:var(--en);color:var(--accent);font-size:1.4em;letter-spacing:-.03em}

/* ---------- faq ---------- */
.faq{background:var(--paper)}
.faq-grid{display:grid;grid-template-columns:1fr 1.6fr;gap:clamp(32px,6vw,96px)}
details{border-bottom:1px solid var(--line)}
details:first-child{border-top:1px solid var(--line)}
summary{list-style:none;cursor:pointer;padding:24px 40px 24px 0;font-weight:700;position:relative;font-size:16px}
summary::-webkit-details-marker{display:none}
summary::before{content:"Q.";font-family:var(--en);color:var(--accent);margin-right:12px}
summary::after{content:"";position:absolute;right:6px;top:50%;width:12px;height:12px;border-right:1.5px solid var(--muted);border-bottom:1.5px solid var(--muted);transform:translateY(-75%) rotate(45deg);transition:transform .3s}
details[open] summary::after{transform:translateY(-25%) rotate(-135deg)}
details p{padding:0 0 24px 30px;color:var(--muted);font-size:15px}

/* ---------- cta ---------- */
.cta{background:var(--ink);color:var(--paper);text-align:center;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;left:50%;top:100%;width:1200px;height:1200px;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(224,122,98,.28),transparent 55%)}
.cta .wrap{position:relative}
.cta h2{font-size:clamp(30px,5vw,60px);line-height:1.35;font-weight:900;margin:24px 0 20px}
.cta p{color:var(--muted-dark);margin-bottom:40px}
.cta .hero-cta{justify-content:center}

/* ---------- footer ---------- */
footer{background:var(--ink);color:var(--muted-dark);border-top:1px solid var(--line-dark);padding:64px 0 32px;font-size:13px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px}
.foot-grid h4{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--accent);font-weight:400;margin-bottom:16px}
.foot-grid ul{list-style:none;display:grid;gap:10px}
.foot-grid a:hover{color:var(--paper)}
.foot-grid .logo{margin-bottom:16px}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:56px;padding-top:24px;border-top:1px solid var(--line-dark);font-family:var(--en);font-size:12px}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(24px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none}.marquee-track{animation:none}html{scroll-behavior:auto}}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .nav ul,.nav .btn{display:none}
  .menu-btn{display:block}
  .concept-grid,.svc,.message-body,.faq-grid{grid-template-columns:1fr}
  .reasons-grid,.works-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr 1fr}
  .flow-item:nth-child(3){padding-left:0;border-left:0}
  .flow-item:nth-child(n+3){border-top:1px solid var(--line)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-grid > div:first-child{grid-column:1/-1}
}
@media (max-width:720px){
  .steps{grid-template-columns:1fr}
  .step,.step+.step{padding:28px 0;border-left:0}
  .step+.step{border-top:1px solid var(--line)}
  .flow-grid{grid-template-columns:1fr}
  .flow-item,.flow-item+.flow-item{padding:24px 0 16px;border-left:0}
  .flow-item+.flow-item{border-top:1px solid var(--line)}
  .hero-bottom{flex-direction:column;align-items:flex-start}
  .hero-cta .btn{flex:1;justify-content:center}
  .work{min-height:0}
}

/* ---------- sub pages ---------- */
.page-hero{position:relative;background:var(--ink);color:var(--paper);padding:clamp(140px,18vw,200px) 0 clamp(64px,8vw,96px);overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-15vw;top:-20%;width:60vw;height:60vw;max-width:760px;max-height:760px;background:radial-gradient(circle,rgba(224,122,98,.16),transparent 60%);pointer-events:none}
.page-hero .wrap{position:relative;z-index:1}
.page-hero h1{font-size:clamp(34px,5.6vw,68px);line-height:1.3;font-weight:900;letter-spacing:-.01em;margin:22px 0 20px}
.page-hero p{max-width:560px;color:var(--muted-dark);font-size:15px}
.crumb{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted-dark);margin-top:40px}
.crumb a:hover{color:var(--paper)}
.nav ul a.current{color:var(--paper)}

.anchor-nav{display:flex;gap:10px;flex-wrap:wrap;margin-top:36px}
.anchor-nav a{font-size:13px;padding:10px 18px;border:1px solid var(--line-dark);border-radius:999px;color:var(--muted-dark);transition:border-color .2s,color .2s}
.anchor-nav a:hover{border-color:var(--accent);color:var(--paper)}

/* service detail */
.detail{scroll-margin-top:72px}
.detail-head{display:grid;grid-template-columns:1fr 1.2fr;gap:clamp(32px,5vw,72px);align-items:end;margin-bottom:clamp(48px,6vw,72px)}
.detail-head h2{font-size:clamp(28px,4vw,46px);line-height:1.35;font-weight:900;margin-top:18px}
.detail-head p{color:var(--muted);font-size:15px}
.sub-h{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--muted);margin:clamp(48px,6vw,72px) 0 20px;text-transform:uppercase}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px 26px}
.card .no{font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:.1em}
.card h3{font-size:17px;font-weight:900;margin:12px 0 8px;line-height:1.5}
.card p{font-size:14px;color:var(--muted)}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.plan{border:1px solid var(--line);border-radius:18px;padding:30px 26px;display:flex;flex-direction:column;background:var(--paper)}
.plan.feat{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.plan .tag{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--accent)}
.plan h3{font-size:20px;font-weight:900;margin:10px 0 6px}
.plan .for{font-size:13px;color:var(--muted);margin-bottom:18px}
.plan.feat .for{color:var(--muted-dark)}
.plan ul{list-style:none;display:grid;gap:10px;font-size:14px;flex:1}
.plan li{padding-left:22px;position:relative}
.plan li::before{content:"";position:absolute;left:2px;top:.62em;width:10px;height:5px;border-left:1.5px solid var(--accent);border-bottom:1.5px solid var(--accent);transform:rotate(-45deg)}
.plan .price{margin-top:24px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.plan.feat .price{border-color:var(--line-dark);color:var(--muted-dark)}
.alt{background:var(--paper-2)}
.dark{background:var(--ink);color:var(--paper)}
.dark .detail-head p,.dark .card p{color:var(--muted-dark)}
.dark .card{background:var(--ink-2);border-color:var(--line-dark)}
.dark .sub-h{color:var(--muted-dark)}
.dark .plan{background:var(--ink-2);border-color:var(--line-dark)}
.dark .plan.feat{background:var(--accent);border-color:var(--accent)}
.dark .plan.feat .tag{color:#fff}
.dark .plan.feat li::before{border-color:#fff}
.dark .plan .for,.dark .plan .price{color:var(--muted-dark)}
.dark .plan.feat .for,.dark .plan.feat .price{color:rgba(255,255,255,.85);border-color:rgba(255,255,255,.3)}

/* works detail */
.case{display:grid;grid-template-columns:1fr 1.5fr;gap:clamp(32px,5vw,72px);padding:clamp(48px,6vw,72px) 0;border-top:1px solid var(--line)}
.case:last-child{border-bottom:1px solid var(--line)}
.case .meta{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--muted);display:flex;gap:14px;flex-wrap:wrap}
.case .meta b{color:var(--accent);font-weight:400}
.case h2{font-size:clamp(24px,3vw,32px);line-height:1.45;font-weight:900;margin:16px 0}
.case .kpi{display:inline-flex;align-items:baseline;gap:6px;font-family:var(--en);font-weight:700;color:var(--accent);font-size:56px;letter-spacing:-.03em;line-height:1}
.case .kpi small{font-family:var(--font);font-size:14px;color:var(--muted);font-weight:500;letter-spacing:0}
.case dl{display:grid;gap:22px}
.case dt{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--accent);margin-bottom:4px}
.case dd{color:var(--muted);font-size:15px}
.note{font-size:12px;color:var(--muted);margin-top:28px}

/* company */
.info{border-top:1px solid var(--line)}
.info-row{display:grid;grid-template-columns:220px 1fr;gap:24px;padding:26px 0;border-bottom:1px solid var(--line)}
.info-row dt{font-weight:700}
.info-row dt small{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--accent);font-weight:400}
.info-row dd{color:var(--muted)}
.info-row dd a{color:var(--text);border-bottom:1px solid var(--accent)}

/* contact form */
.form-wrap{display:grid;grid-template-columns:1fr 1.6fr;gap:clamp(32px,6vw,96px)}
.form-side h2{font-size:clamp(24px,3vw,32px);font-weight:900;line-height:1.5;margin:18px 0 16px}
.form-side p{color:var(--muted);font-size:14px;margin-bottom:14px}
.form-side ul{list-style:none;display:grid;gap:12px;margin-top:24px}
.form-side li{display:flex;gap:12px;font-size:14px}
.form-side li b{font-family:var(--mono);color:var(--accent);font-weight:400;font-size:12px;padding-top:2px}
form{display:grid;gap:22px}
.field label{display:block;font-weight:700;font-size:14px;margin-bottom:8px}
.field label .req{font-size:11px;color:#fff;background:var(--accent);border-radius:4px;padding:1px 6px;margin-left:8px;font-weight:500}
.field input,.field select,.field textarea{width:100%;font:inherit;font-size:16px;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--text);transition:border-color .2s,box-shadow .2s}
.field textarea{min-height:160px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(224,122,98,.18)}
.checks{display:flex;flex-wrap:wrap;gap:10px}
.checks label{display:inline-flex;align-items:center;gap:8px;font-weight:500;font-size:14px;padding:10px 16px;border:1px solid var(--line);border-radius:999px;background:#fff;cursor:pointer;margin:0;transition:border-color .2s,background .2s}
.checks input{width:auto;accent-color:var(--accent)}
.checks label:has(input:checked){border-color:var(--accent);background:rgba(224,122,98,.08)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
form .btn{justify-self:start;border:0;cursor:pointer;font-family:inherit}
.form-msg{font-size:14px;color:var(--muted)}

@media (max-width:960px){
  .detail-head,.case,.form-wrap{grid-template-columns:1fr}
  .card-grid,.plans{grid-template-columns:1fr}
  .info-row{grid-template-columns:1fr;gap:6px}
}
@media (max-width:560px){.two{grid-template-columns:1fr}}

/* ---------- PDCA + knowledge ---------- */
.pdca{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:clamp(56px,7vw,88px);position:relative}
.pdca-step{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px 24px 24px;position:relative;display:flex;flex-direction:column}
.pdca-step:not(:last-child)::after{content:"→";position:absolute;right:-14px;top:42px;width:24px;height:24px;border-radius:50%;background:var(--paper);color:var(--accent);display:grid;place-items:center;font-size:13px;z-index:1}
.pdca-letter{font-family:var(--en);font-weight:700;font-size:56px;line-height:1;color:var(--accent);letter-spacing:-.04em}
.pdca-step .no{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted);margin-top:14px}
.pdca-step h3{font-size:18px;font-weight:900;margin:6px 0 8px}
.pdca-step p{font-size:14px;color:var(--muted);flex:1}
.kn{margin-top:20px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;font-weight:700}
.kn span{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--accent);font-weight:400;margin-bottom:2px}
.knowledge{margin-top:16px;background:var(--ink);color:var(--paper);border-radius:20px;padding:clamp(28px,4vw,44px);display:grid;grid-template-columns:1.2fr 1fr;gap:clamp(28px,5vw,64px);align-items:center}
.knowledge-head p{color:var(--muted-dark);font-size:15px;margin-top:14px}
.knowledge-head p strong{display:block;color:var(--paper);font-size:clamp(18px,2.2vw,22px);font-weight:900;margin-bottom:6px}
.km-row{display:grid;grid-template-columns:64px 1fr;gap:14px;align-items:center;margin-bottom:12px;font-family:var(--mono);font-size:11px;color:var(--muted-dark)}
.km-bar{height:10px;border-radius:5px;background:rgba(255,255,255,.08);overflow:hidden}
.km-bar i{display:block;height:100%;border-radius:5px;background:linear-gradient(90deg,rgba(224,122,98,.55),var(--accent));transform-origin:left;transform:scaleX(0);transition:transform 1.2s cubic-bezier(.2,.7,.2,1) .3s}
.knowledge.in .km-bar i{transform:scaleX(1)}
.km-cap{font-size:11px;color:var(--muted-dark);margin-top:6px;text-align:right}
@media (max-width:960px){
  .pdca{grid-template-columns:1fr 1fr}
  .pdca-step:nth-child(2)::after{display:none}
  .knowledge{grid-template-columns:1fr}
}
@media (max-width:560px){
  .pdca{grid-template-columns:1fr}
  .pdca-step:not(:last-child)::after{display:grid;content:"↓";right:auto;left:50%;top:auto;bottom:-14px;transform:translateX(-50%)}
}
.form-done{background:#fff;border:1px solid var(--line);border-radius:20px;padding:40px 32px}
.form-done h3{font-size:22px;font-weight:900;margin:14px 0 8px}
.form-done p{color:var(--muted);font-size:15px}
button:disabled{opacity:.6;cursor:wait}
.message-body .who img{width:100%;max-width:300px;height:auto;aspect-ratio:3/4;object-fit:cover;object-position:50% 40%;border-radius:16px;margin-bottom:20px;filter:saturate(.9)}
@media (max-width:960px){.message-body .who img{max-width:240px}}