@import url('https://fonts.googleapis.com/css2?family=Shippori+Mincho+B1:wght@400;500;700;800&family=Zen+Kaku+Gothic+New:wght@400;500;700&family=Zen+Maru+Gothic:wght@700;900&display=swap');
:root{--ink:#1f1d1a;--ink-soft:#4a4741;--paper:#fbf8f1;--shu:#b5352a;--shu-pale:#f6e3e0;--serif:'Shippori Mincho B1',serif;--gothic:'Zen Kaku Gothic New',sans-serif;--round:'Zen Maru Gothic','Zen Kaku Gothic New',sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--gothic);line-height:1.8;padding-bottom:84px}a{color:inherit}img{max-width:100%;height:auto;display:block}.case-wrap{width:min(1080px,calc(100% - 40px));margin-inline:auto}
.fv2-hd-20260913{background:rgba(251,248,241,.98);border-bottom:1px solid rgba(31,29,26,.16)}.fv2-hd-20260913__inner{width:min(1180px,calc(100% - 40px));min-height:88px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px}.fv2-hd-20260913__brand{display:flex;align-items:center;gap:10px;text-decoration:none}.fv2-hd-20260913__brand img{width:48px;height:48px;object-fit:contain}.fv2-hd-20260913__brand>span{display:grid}.fv2-hd-20260913__brand b{font-family:var(--round);font-size:23px}.fv2-hd-20260913__brand small{font-size:12px}.fv2-hd-20260913__phone{text-align:right;text-decoration:none}.fv2-hd-20260913__phone span,.fv2-hd-20260913__phone small{display:block;font-size:12px}.fv2-hd-20260913__phone b{font-size:22px;color:var(--shu)}
.case-breadcrumb{font-size:13px;padding-top:20px}.case-breadcrumb span{margin:0 8px;color:var(--ink-soft)}.case-hero{padding:38px 0 30px}.case-hero__tag{margin:0 0 6px;color:var(--shu);font-weight:700;letter-spacing:.08em}.case-hero h1{margin:0;max-width:860px;font-family:var(--serif);font-size:clamp(30px,5vw,52px);line-height:1.35}.case-nobr{white-space:nowrap}.case-hero p{max-width:780px;margin:16px 0 0;font-size:17px}.case-section{padding:34px 0}.case-section h2{font-family:var(--serif);font-size:clamp(26px,4vw,38px);line-height:1.4;margin:0 0 20px}
.case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border-top:1px solid rgba(31,29,26,.22)}.case-card{padding:28px 24px;border-bottom:1px solid rgba(31,29,26,.22)}.case-card:nth-child(even){border-right:1px solid rgba(31,29,26,.22)}.case-card h2,.case-card h3{margin:0 0 12px;line-height:1.45;font-family:var(--serif)}.case-card p{margin:0 0 16px}.case-card__link{font-weight:700;color:var(--shu);text-underline-offset:5px}.case-card--fact{grid-column:1/-1;display:grid;grid-template-columns:1fr 1.1fr;gap:30px;align-items:center;background:var(--shu-pale);border-right:0!important}
.case-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.case-meta span{border:1px solid rgba(31,29,26,.25);padding:5px 10px;font-size:14px;font-weight:700}.case-equation{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:center;gap:10px;text-align:center;margin:22px 0}.case-equation div{padding:18px 10px;border-top:2px solid var(--ink);border-bottom:2px solid var(--ink)}.case-equation b{display:block;font-family:var(--serif);font-size:clamp(22px,4vw,34px);line-height:1.2}.case-equation small{display:block}.case-equation strong{font-family:var(--serif);font-size:28px;color:var(--shu)}.case-note{border-left:4px solid var(--shu);padding:13px 18px;background:var(--shu-pale);font-size:14px}.case-source{font-size:14px}
.case-ba{display:grid;grid-template-columns:1fr 1fr;gap:16px}.case-ba figure{margin:0}.case-ba img{width:100%;aspect-ratio:3/4;object-fit:cover;background:#e7e2da}.case-ba figcaption{padding:7px 10px;border-bottom:2px solid var(--ink);font-weight:700;text-align:center}.case-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.case-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 20px;background:var(--shu);color:#fff;text-decoration:none;font-weight:700}.case-button--sub{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.case-contact{margin-top:36px;padding:34px;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}.case-contact h2{font-family:var(--serif);margin-top:0}.case-contact__links{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.case-contact__links a{min-height:52px;display:flex;align-items:center;justify-content:center;padding:10px;border:1px solid var(--ink);font-weight:700;text-decoration:none;text-align:center}.case-contact__links a:first-child{background:#06c755;border-color:#06c755;color:#fff}.case-contact__links a:nth-child(2){background:var(--shu);border-color:var(--shu);color:#fff}.case-footer{padding:34px 0 100px;text-align:center;font-size:13px}.case-footer a{display:inline-block;margin-top:8px}
.fixed-cta{position:fixed;z-index:20;bottom:0;left:0;right:0;display:grid;grid-template-columns:1fr 1fr 1fr;background:var(--paper);border-top:1px solid var(--ink);padding:7px max(7px,env(safe-area-inset-right)) calc(7px + env(safe-area-inset-bottom)) max(7px,env(safe-area-inset-left));gap:7px}.fixed-cta a{min-height:48px;display:flex;align-items:center;justify-content:center;text-align:center;text-decoration:none;color:#fff;background:#06c755;font-size:13px;font-weight:700}.fixed-cta .tel{background:var(--shu)}.fixed-cta .body-fixed-form{background:var(--ink)}
@media(max-width:767px){.case-wrap{width:min(100% - 28px,1080px)}.fv2-hd-20260913__inner{width:min(100% - 28px,1180px);min-height:72px}.fv2-hd-20260913__brand img{width:38px;height:38px}.fv2-hd-20260913__brand b{font-size:17px}.fv2-hd-20260913__brand small,.fv2-hd-20260913__phone b,.fv2-hd-20260913__phone small{display:none}.fv2-hd-20260913__phone{display:flex;align-items:center;min-height:44px;border-left:1px solid #b5b1ab;padding-left:12px}.fv2-hd-20260913__phone span{display:block;font-size:16px;white-space:nowrap}.case-grid,.case-card--fact{grid-template-columns:1fr}.case-card{padding:24px 0;border-right:0!important}.case-card--fact{padding:24px 16px}.case-equation{grid-template-columns:1fr}.case-equation>span{line-height:1}.case-ba{gap:8px}.case-contact{padding:28px 14px}.case-contact__links{grid-template-columns:1fr}.case-hero{padding-top:26px}.fixed-cta a{font-size:12px}}
@media(min-width:768px){body{padding-bottom:0}.fixed-cta{display:none}}