:root{--red:#e60012;--black:#111;--text:#222;--muted:#5b5b5b;--line:#e5e5e5;--bg:#f5f5f5;--wide:1120px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Yu Gothic",Meiryo,sans-serif;color:var(--text);background:var(--bg);line-height:1.8}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
main{width:min(calc(100% - 32px),var(--wide));margin:auto;padding:28px 0 70px}
.hero{background:#111;color:#fff;border-radius:24px;padding:34px 36px;box-shadow:0 12px 30px rgba(0,0,0,.08)}
.hero h1{margin:0;font-size:clamp(29px,4vw,44px);line-height:1.25;letter-spacing:-.04em}
.hero p{margin:12px 0 0;color:#eee;font-size:16px}
.flow{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.flow span{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:999px;background:#fff;color:#111;font-size:12px;font-weight:900}
.notice{margin:22px 0 0;padding:17px 20px;border-left:7px solid var(--red);border-radius:14px;background:#fff;color:#444;box-shadow:0 6px 20px rgba(0,0,0,.04)}
.steps{display:grid;gap:24px;margin-top:26px}
.step{background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:0 10px 26px rgba(0,0,0,.05)}
.step-head{display:flex;align-items:flex-start;gap:14px;padding:23px 26px 19px;border-bottom:1px solid #eee}
.step .num{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;min-width:76px;min-height:34px;padding:5px 13px;border-radius:999px;background:var(--red);color:#fff;font-weight:900;font-size:13px}
.step-title{min-width:0}
.step h2{margin:0;font-size:clamp(22px,3vw,30px);line-height:1.35;letter-spacing:-.03em}
.step-lead{margin:5px 0 0;color:#666;font-size:14px}
.step-body{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(300px,.65fr);gap:24px;padding:24px 26px 27px;align-items:start}
.shot{border:1px solid #ddd;border-radius:16px;background:#fafafa;padding:10px;overflow:hidden}
.shot img{width:100%;height:auto;border-radius:10px}
.explain{display:grid;gap:13px}
.explain p{margin:0;color:#444}
.explain ul{margin:0;padding-left:1.2em;color:#444}
.explain li+li{margin-top:6px}
.point{padding:13px 15px;border-radius:12px;background:#fff7f7;border-left:5px solid var(--red);font-size:14px}
.point strong{color:#111}
.small{font-size:13px;color:#666}
.summary{margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px 26px;box-shadow:0 8px 24px rgba(0,0,0,.04)}
.summary h2{margin:0 0 12px;font-size:25px}
.summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.summary-card{padding:16px;border-radius:14px;background:#f8f8f8;border:1px solid #eee}
.summary-card strong{display:block;margin-bottom:4px}
.tip{margin-top:22px;background:#fff8e9;border:2px solid #e5b55f;border-radius:16px;padding:18px 20px;color:#4a3a20}
.tip strong{color:#111}
.cta{display:flex;gap:12px;margin-top:26px}
.cta a{flex:1;display:flex;align-items:center;justify-content:center;min-height:54px;padding:10px 18px;border-radius:14px;font-weight:900;text-align:center}
.cta .red{background:var(--red);color:#fff}
.cta .white{background:#fff;color:#111;border:2px solid #111}
@media(max-width:860px){.step-body{grid-template-columns:1fr}.summary-grid{grid-template-columns:1fr}}
@media(max-width:640px){.header-inner{width:calc(100% - 20px);min-height:68px}.logo-copy{display:none}.logo img{width:96px}.back{font-size:12px;padding:0 13px;min-height:38px}main{width:calc(100% - 20px);padding-top:16px}.hero{padding:25px 20px;border-radius:19px}.hero p{font-size:14px}.flow{gap:6px}.flow span{font-size:11px;padding:7px 10px}.step{border-radius:18px}.step-head{padding:18px 16px 15px;gap:10px;display:block}.step .num{margin-bottom:9px}.step-body{padding:16px;gap:16px}.shot{padding:6px;border-radius:12px}.cta{flex-direction:column}}