:root{--ink:#111014;--muted:#6f676e;--pink:#e64e69;--soft:#f7edf4;--line:#e7dce4}*{box-sizing:border-box}body{margin:0;background:#fbf7fa;color:var(--ink);font-family:Manrope,"Noto Sans JP",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.8}.caseHeader{height:88px;padding:0 clamp(24px,6vw,96px);display:flex;align-items:center;justify-content:space-between;background:rgba(251,247,250,.92);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}.caseLogo{font-weight:900;font-size:25px;letter-spacing:-.06em;color:var(--ink);text-decoration:none}.caseLogo span{color:var(--pink)}.caseHeader nav{display:flex;gap:28px}.caseHeader nav a{color:var(--ink);font-weight:800;font-size:14px;text-decoration:none}.caseHero{max-width:1440px;margin:auto;padding:clamp(64px,9vw,130px) clamp(24px,6vw,96px);display:grid;grid-template-columns:minmax(0,.82fr) minmax(420px,1.18fr);gap:clamp(48px,7vw,110px);align-items:center}.caseLabel{margin:0 0 16px;color:var(--pink);font-size:12px;font-weight:900;letter-spacing:.16em}.caseHero h1{margin:0;font-size:clamp(46px,6vw,88px);line-height:1.04;letter-spacing:-.06em}.caseLead{max-width:650px;margin:30px 0 0;color:var(--muted);font-size:clamp(17px,1.6vw,23px);font-weight:600}.caseActions{display:flex;flex-wrap:wrap;gap:12px;margin-top:38px}.caseButton{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 24px;border:1px solid var(--ink);border-radius:999px;color:var(--ink);font-size:14px;font-weight:800;text-decoration:none;transition:.2s}.caseButton:hover{transform:translateY(-2px)}.caseButton--primary{background:var(--ink);color:#fff}.caseVisual{padding:14px;background:linear-gradient(135deg,#fff,#f2e2ec);border-radius:30px;box-shadow:0 24px 80px rgba(73,35,59,.12)}.caseVisual img{display:block;width:100%;border-radius:19px}.caseOverview,.caseGrid,.caseDetails,.caseRole{max-width:1248px;margin:0 auto;padding:clamp(70px,9vw,130px) clamp(24px,4vw,64px)}.caseOverview{display:grid;grid-template-columns:.7fr 1.3fr;gap:64px;border-top:1px solid var(--line)}h2{margin:0;font-size:clamp(28px,3vw,46px);line-height:1.3;letter-spacing:-.04em}.caseOverview>p,.caseGrid article>p:last-child,.caseRole>p:last-child{margin:0;color:var(--muted);font-size:clamp(17px,1.6vw,22px);font-weight:600}.caseGrid,.caseDetails{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding-top:0}.caseGrid article,.caseDetails article{padding:clamp(30px,4vw,54px);background:#fff;border:1px solid var(--line);border-radius:28px}.caseGrid article>p:last-child{margin-top:24px;font-size:17px}.caseDetails{padding-top:18px}.features{list-style:none;padding:0;margin:32px 0 0}.features li{padding:18px 0;border-top:1px solid var(--line);font-size:18px;font-weight:750}.chips{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:28px 0 0}.chips li{padding:10px 16px;background:var(--soft);border-radius:999px;font-size:14px;font-weight:800}.chips.dark li{background:var(--ink);color:#fff}.stackLabel{margin-top:44px}.caseRole{padding-top:18px}.caseRole>p:last-child{margin-top:24px}.caseCta{margin:clamp(70px,8vw,120px) clamp(18px,4vw,64px) 0;padding:clamp(54px,8vw,110px);border-radius:36px;background:linear-gradient(135deg,#e64e69,#c82d52);color:#fff;text-align:center}.caseCta p{margin:0 0 16px;font-weight:800}.caseCta h2{font-size:clamp(34px,5vw,68px)}.caseButton.light{margin-top:34px;background:#fff;border-color:#fff;color:var(--ink)}footer{padding:42px clamp(24px,6vw,96px);display:flex;justify-content:space-between;color:var(--muted);font-size:13px}footer a{color:var(--ink);font-weight:900;text-decoration:none}@media(max-width:820px){.caseHeader{height:72px}.caseHeader nav a:first-child{display:none}.caseHero{grid-template-columns:1fr;padding-top:56px}.caseVisual{order:-1}.caseOverview,.caseGrid,.caseDetails{grid-template-columns:1fr}.caseOverview{gap:24px}.caseGrid,.caseDetails{gap:14px}.caseCta{border-radius:24px}footer{flex-direction:column;gap:10px}}

.caseOverview h2{width:auto;font-size:clamp(24px,2.2vw,34px);white-space:nowrap}

/* Service overview infographic */
.caseOverview{grid-template-columns:minmax(240px,.62fr) minmax(0,1.38fr);gap:clamp(36px,6vw,86px);align-items:start}
.caseOverview__intro{position:sticky;top:120px}
.caseOverview__intro h2{font-size:clamp(26px,3vw,42px)}
.caseOverview__summary{margin:26px 0 0;color:var(--muted);font-size:clamp(16px,1.35vw,20px);font-weight:600;line-height:1.9}
.serviceInfographic{position:relative;padding:clamp(22px,3vw,34px);border:1px solid rgba(230,78,105,.2);border-radius:28px;background:linear-gradient(135deg,#fff 0%,#fff7fa 56%,#f7edf4 100%);box-shadow:0 24px 70px rgba(73,35,59,.09);overflow:hidden}
.serviceInfographic::before{content:"";position:absolute;width:240px;height:240px;right:-90px;top:-100px;border-radius:50%;background:rgba(230,78,105,.1);filter:blur(2px)}
.serviceInfographic__header{position:relative;display:flex;align-items:center;gap:12px;color:var(--pink);font-size:11px;font-weight:900;letter-spacing:.16em}
.serviceInfographic__header i{display:block;width:34px;height:1px;background:var(--pink);opacity:.5}
.serviceInfographic__header small{margin-left:auto;color:var(--muted);font-size:11px;letter-spacing:0;font-weight:700}
.serviceInfographic__flow{position:relative;display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:stretch;gap:12px;margin-top:26px}
.serviceInfographic__step{position:relative;min-height:178px;padding:22px 18px 18px;border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.84);display:flex;flex-direction:column;box-shadow:0 10px 24px rgba(73,35,59,.04)}
.serviceInfographic__step--active{border-color:rgba(230,78,105,.5);background:#fff;box-shadow:0 14px 30px rgba(230,78,105,.13);transform:translateY(-6px)}
.serviceInfographic__number{color:var(--pink);font-size:11px;font-weight:900;letter-spacing:.12em}
.serviceInfographic__icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;margin:16px 0 18px;border-radius:12px;background:var(--ink);color:#fff;font-size:17px;font-weight:900}
.serviceInfographic__step--active .serviceInfographic__icon{background:var(--pink)}
.serviceInfographic__step strong{font-size:16px;letter-spacing:-.02em}
.serviceInfographic__step small{margin-top:8px;color:var(--muted);font-size:12px;line-height:1.55;font-weight:650}
.serviceInfographic__connector{display:flex;align-items:center;justify-content:center;color:var(--pink);font-size:24px;font-weight:300}
.caseSolution{padding-top:18px}
.caseSolution article{background:linear-gradient(135deg,#fff,#fff7fa)}
@media(max-width:820px){.caseOverview{grid-template-columns:1fr;gap:24px}.caseOverview__intro{position:static}.serviceInfographic__flow{grid-template-columns:1fr;gap:10px}.serviceInfographic__step,.serviceInfographic__step--active{min-height:0;transform:none}.serviceInfographic__connector{height:12px;transform:rotate(90deg)}.serviceInfographic__header{align-items:flex-start;flex-wrap:wrap}.serviceInfographic__header small{width:100%;margin-left:0}}

/* Two-row service story: explanation first, visual flow second. */
.caseOverview{display:block}
.caseOverview__intro{display:block;position:static;text-align:center}
.caseOverview__intro .caseLabel{margin-bottom:18px}
.caseOverview__summary{margin:32px auto 0;max-width:920px;text-align:left}
.serviceInfographic{margin-top:clamp(42px,6vw,76px)}
@media(max-width:820px){.caseOverview__summary{margin-top:24px}.serviceInfographic{margin-top:32px}}