:root{
  --orange:#f28c00;--orange-dark:#e66f00;--yellow:#ffd600;
  --charcoal:#21252a;--text:#2c3339;--muted:#6c757d;--line:#e7e9ec;--white:#fff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Yu Gothic","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 15% 15%,rgba(255,214,0,.14),transparent 30%),
    radial-gradient(circle at 85% 10%,rgba(242,140,0,.10),transparent 32%),
    linear-gradient(180deg,#fff 0%,#f7f8fa 100%);
  min-height:100vh;
}
.site-header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{max-width:1100px;margin:0 auto;padding:14px 24px}
.brand{display:inline-flex;align-items:center;gap:14px;text-decoration:none;color:inherit}
.brand img{width:54px;height:54px;object-fit:contain;background:#fff;border-radius:12px}
.company{font-weight:800;letter-spacing:.08em;color:var(--charcoal)}
.service{font-size:13px;color:var(--orange-dark);letter-spacing:.18em;margin-top:2px;font-weight:700}
.container{max-width:980px;margin:0 auto;padding:64px 24px}
.hero{text-align:center;margin-bottom:38px}
.hero-logo-wrap{width:150px;height:150px;margin:0 auto 20px;border-radius:28px;background:#fff;display:grid;place-items:center;box-shadow:0 18px 50px rgba(229,111,0,.12);border:1px solid rgba(242,140,0,.15)}
.hero-logo{max-width:118px;max-height:118px;object-fit:contain}
.eyebrow{color:var(--orange-dark);font-size:12px;font-weight:800;letter-spacing:.24em}
h1{font-size:clamp(34px,6vw,58px);margin:8px 0 14px;color:var(--charcoal)}
.lead{max-width:720px;margin:0 auto;color:var(--muted);line-height:1.9}
.notice-card{background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:20px;padding:32px;box-shadow:0 16px 45px rgba(33,37,42,.07)}
.notice-card h2{margin-top:0;color:var(--charcoal)}
.notice-card ol{padding-left:1.4em;line-height:1.95}
.notice-card li::marker{color:var(--orange-dark);font-weight:800}
.note{margin:18px 0 0;padding:15px 17px;background:#fff8e8;border-left:4px solid var(--orange);border-radius:10px;color:#6d5b30}
.security{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}
.security>div{background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:16px;padding:22px}
.security strong{display:block;color:var(--charcoal);margin:10px 0}
.security p{font-size:14px;line-height:1.7;color:var(--muted);margin:0}
.icon{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--orange-dark),var(--yellow));color:#fff;font-weight:800}
footer{text-align:center;color:var(--muted);font-size:13px;padding:20px 24px 36px}
@media(max-width:760px){.container{padding-top:42px}.security{grid-template-columns:1fr}.notice-card{padding:24px}.hero-logo-wrap{width:128px;height:128px}.hero-logo{max-width:100px;max-height:100px}}