*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.8 "Inter","Noto Sans JP",sans-serif;font-feature-settings:"palt"}
img{max-width:100%;display:block}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}
h1,h2,h3,p{margin:0}
.h1,.h2,.h3,.bridge,.case-res{word-break:auto-phrase;text-wrap:balance}
p{text-wrap:pretty}
.num{font-family:"Inter",sans-serif;font-variant-numeric:tabular-nums;font-weight:700}
.mockbar{background:#111;color:#fff;font-size:12px;text-align:center;padding:4px 16px}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}

/* header */
.top{position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:2px solid var(--ink)}
.top-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{color:var(--ink);text-decoration:none;font:700 20px/1 "Inter",sans-serif;letter-spacing:.04em;display:flex;align-items:baseline;gap:12px}
.logo small{font:600 12px/1 "Noto Sans JP",sans-serif;letter-spacing:0}

/* buttons */
.btn{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:56px;padding:10px 28px;border:2px solid var(--ink);border-radius:6px;font-weight:700;font-size:16px;text-decoration:none;transition:transform .15s ease-out,box-shadow .15s ease-out;cursor:pointer;font-family:inherit}
.btn small{font-size:12px;font-weight:400}
.btn-main{background:var(--main);color:#fff;box-shadow:4px 4px 0 var(--ink)}
.btn-sub{background:var(--card);color:var(--ink);box-shadow:4px 4px 0 var(--ink)}
.btn:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--ink)}
.btn:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ink)}
.btn-s{min-height:44px;padding:6px 18px;font-size:14px;box-shadow:3px 3px 0 var(--ink)}
.btn-full{width:100%}
.cta-row{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px}
.cta-row .btn{flex:1 1 240px}

/* hero */
.hero{padding:48px 0 64px;border-bottom:2px solid var(--ink)}
.hero-in{display:grid;gap:40px;align-items:center}
.manual-label{display:inline-block;font-size:13px;font-weight:700;border:2px solid var(--ink);padding:2px 10px;margin-bottom:20px;background:var(--card)}
.h1{font-size:clamp(36px,6vw,64px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.lead{margin-top:20px;font-size:17px;max-width:34em}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:28px;border:2px solid var(--ink);background:var(--card)}
.stat{padding:12px 8px;text-align:center;border-left:2px solid var(--ink)}
.stat:first-child{border-left:0}
.stat .num{font-size:clamp(24px,3.4vw,32px);color:var(--main);line-height:1.2}
.stat .unit{font-size:13px;font-weight:700;margin-left:2px}
.stat small{display:block;font-size:12px}
.note{font-size:12px;margin-top:8px}
.hero-img img{width:100%;border:2px solid var(--ink)}

/* section */
.sec{padding:80px 0;border-bottom:2px solid var(--ink)}
.ch{margin-bottom:40px;display:grid;gap:8px}
.ch-no{font-weight:700;font-size:14px;color:var(--main);display:flex;align-items:center;gap:12px}
.ch-no::after{content:"";flex:1;height:2px;background:var(--ink)}
.h2{font-size:clamp(28px,4vw,40px);line-height:1.35;font-weight:700}
.ch-sub{font-size:17px}
.h3{font-size:20px;line-height:1.4;font-weight:700}

/* troubles */
.trouble-wrap{display:grid;gap:32px;align-items:start}
.troubles{list-style:none;margin:0;padding:0;display:grid;gap:16px}
.trouble{background:var(--card);border:2px solid var(--ink);padding:20px}
.check{display:flex;gap:12px;align-items:center;font-weight:700;font-size:18px;cursor:pointer;min-height:44px}
.check input{width:24px;height:24px;accent-color:var(--main);flex:none}
.trouble>p{margin:4px 0 0 36px}
.data{margin:12px 0 0 36px;padding-top:12px;border-top:1px dashed var(--ink);font-size:14px;display:grid;gap:2px}
.data b{font-size:20px;color:var(--main)}
.data small{font-size:12px}
.ill img{width:100%;border:2px solid var(--ink)}
.bridge{margin-top:40px;font-size:clamp(20px,2.6vw,26px);font-weight:700;line-height:1.6}
.mark{background:var(--accent);color:var(--ink);padding:0 6px}

/* roles */
.roles{display:grid;gap:20px}
.role{background:var(--card);border:2px solid var(--ink);display:grid;overflow:hidden}
.role-img{margin:0;background:var(--bg);border-bottom:2px solid var(--ink)}
.role-img img{width:100%;height:100%;object-fit:cover}
.role-body{padding:20px;display:grid;gap:8px;align-content:start}
.role-tag{font-size:13px;font-weight:700;color:var(--main)}
.chips{font-size:13px;border-top:1px dashed var(--ink);padding-top:8px}
.team-band{margin-top:32px;background:var(--main);color:#fff;border:2px solid var(--ink);padding:24px;display:grid;grid-template-columns:auto 1fr;gap:4px 16px;align-items:baseline}
.team-band .num{font-size:56px;line-height:1;color:var(--accent)}
.team-band span{font-weight:700;font-size:20px}
.team-band p{grid-column:1/-1}

/* system */
.ill-wide{margin:0 0 32px}
.compare{display:grid;gap:20px}
.cmp{border:2px solid var(--ink);padding:24px;background:var(--card)}
.cmp ul{list-style:none;padding:0;margin:16px 0;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.cmp li{border:2px solid var(--ink);text-align:center;padding:8px 4px;font-size:14px;font-weight:600;opacity:.35}
.cmp li.on{opacity:1;background:var(--main);color:#fff}
.cmp .num{font-size:40px;color:var(--main);line-height:1}
.cmp-on{border-width:4px}

/* cases */
.cases{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.case{background:var(--card);border:2px solid var(--ink);padding:20px;display:grid;gap:6px;align-content:start}
.case-ind{font-size:13px;font-weight:600}
.case-res{font-size:22px;line-height:1.4;color:var(--main);font-weight:700}
.case-kpi{font-weight:700;font-size:15px}
.case-how{font-size:14px;border-top:1px dashed var(--ink);padding-top:8px}

/* steps */
.steps{list-style:none;margin:0;padding:0;display:grid;gap:0;border:2px solid var(--ink);background:var(--card)}
.step{display:grid;grid-template-columns:72px 1fr;gap:16px;padding:20px;border-top:2px solid var(--ink)}
.step:first-child{border-top:0}
.step-no{font:700 28px/1 "Inter",sans-serif;color:var(--main)}
.step h3 small{font-size:14px;font-weight:400;margin-left:12px}

/* faq */
.faq{display:grid;gap:12px}
.qa{background:var(--card);border:2px solid var(--ink)}
.qa summary{padding:16px 20px;font-weight:700;cursor:pointer;min-height:44px;list-style:none;display:flex;justify-content:space-between;gap:16px}
.qa summary::after{content:"+";font:700 22px/1 "Inter",sans-serif}
.qa[open] summary::after{content:"−"}
.qa p{padding:0 20px 18px}

/* form */
.sec-form{background:var(--main);color:#fff}
.sec-form .manual-label{color:var(--ink)}
.form-in{display:grid;gap:40px;align-items:start}
.form-txt p{margin-top:16px}
.form-ill{margin-top:24px;border:2px solid var(--ink);max-width:420px}
.form{background:var(--card);color:var(--ink);border:2px solid var(--ink);padding:24px;display:grid;gap:16px;box-shadow:6px 6px 0 var(--ink)}
.form-head{font-weight:700}
.form label{display:grid;gap:6px;font-weight:600;font-size:15px}
.lab{display:flex;align-items:center;gap:8px}
.req{font-size:11px;background:var(--accent);color:var(--ink);padding:0 6px;border-radius:3px;line-height:1.7}
.form input{font:inherit;min-height:48px;padding:8px 12px;border:2px solid var(--ink);border-radius:4px;background:#fff}
.done{font-weight:700;color:var(--main)}
.foot{padding:24px 0 96px;font-size:12px}
.sticky{position:fixed;left:16px;right:16px;bottom:12px;z-index:30;display:none}

@media (max-width:767px){
  .logo small{display:none}
  .logo,.btn-s{white-space:nowrap}
  .stat .num{display:block}
  .stat .unit{margin:0}
  .sticky{display:flex}
  .sec{padding:56px 0}
  .stat{padding:10px 4px}
  .trouble>p,.data{margin-left:0}
  .step{grid-template-columns:48px 1fr;padding:16px}
  .step h3 small{display:block;margin-left:0}
}
@media (min-width:768px){
  .trouble-wrap{grid-template-columns:1.2fr 1fr}
  .ill{position:sticky;top:96px}
  .compare{grid-template-columns:1fr 1fr}
  .form-in{grid-template-columns:1fr 1fr}
  .roles{grid-template-columns:repeat(2,1fr)}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}

/* ===== 案K：2列のヒーロー・役割は横長カード ===== */
@media (min-width:900px){
  .l-split .hero-in{grid-template-columns:1fr 1fr}
  .l-split .role{grid-template-columns:200px 1fr}
  .l-split .role-img{border-bottom:0;border-right:2px solid var(--ink)}
}
.l-split .sec-trouble{background:#111;color:#F4EFE4}
.l-split .sec-trouble .trouble{color:var(--ink)}
.l-split .sec-trouble .ch-no{color:var(--accent)}
.l-split .sec-trouble .ch-no::after{background:#F4EFE4}
.l-split .sec-trouble .mark{color:#111}
.l-split .team-band{background:#111}

/* ===== 案E：中央見出し＋全幅のキャラ・役割は縦長4列 ===== */
.l-stack .hero-in{grid-template-columns:1fr;text-align:center}
.l-stack .hero-txt{display:grid;justify-items:center}
.l-stack .stats{width:100%;max-width:640px}
.l-stack .cta-row{justify-content:center;width:100%;max-width:640px}
.l-stack .hero-img{order:-1;margin:0}
.l-stack .hero-img img{max-height:520px;object-fit:cover;object-position:center 30%;border:0;border-bottom:2px solid var(--ink)}
.l-stack .hero{padding-top:0}
.l-stack .hero .wrap{max-width:none;padding:0}
.l-stack .hero-txt{padding:0 16px}
.l-stack .role-img{aspect-ratio:3/5}
.l-stack .role-img img{object-position:top}
@media (min-width:900px){.l-stack .roles{grid-template-columns:repeat(4,1fr)}}
.l-stack .ch-no{color:var(--accent)}
.l-stack .btn-main{background:var(--accent);color:var(--ink)}
.l-stack .sec-form .btn-main{background:var(--accent)}

/* ===== 案B：方眼紙・役割はアイコン付きリスト ===== */
.l-grid{background-image:linear-gradient(rgba(0,0,0,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.05) 1px,transparent 1px);background-size:24px 24px}
.l-grid .top{background:var(--bg)}
@media (min-width:900px){.l-grid .hero-in{grid-template-columns:5fr 6fr}}
.l-grid .hero-img img{border-radius:12px}
.l-grid .trouble,.l-grid .role,.l-grid .case,.l-grid .qa,.l-grid .cmp,.l-grid .steps,.l-grid .form{border-radius:12px}
.l-grid .role{grid-template-columns:120px 1fr}
.l-grid .role-img{border-bottom:0;border-right:2px solid var(--ink)}
.l-grid .role-img img{object-fit:contain;padding:8px}
.l-grid .ill img{border-radius:12px}