:root{--paper:#fcf8f4;--ink:#111b3d;--muted:#595b71;--line:#e7dbcf;--violet:#6c65ec;--sand:#e5cba9}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:radial-gradient(circle at 87% 8%,#fff 0,transparent 25%),radial-gradient(circle at 12% 75%,#f3e6db 0,transparent 31%),var(--paper);font-family:"Zen Maru Gothic",sans-serif}.header{height:82px;padding:0 5.5vw;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;background:rgba(252,248,244,.84);backdrop-filter:blur(15px)}.brand{display:flex;align-items:center;gap:8px;color:var(--ink);text-decoration:none;font-weight:900;font-size:21px;letter-spacing:.12em}.brand-mark{color:var(--violet);font-size:25px}.brand small{font:10px ui-monospace,monospace;letter-spacing:.18em;color:#7a7788;margin-left:4px}.header nav{display:flex;gap:27px}.header nav a{color:var(--ink);text-decoration:none;font-size:12px;letter-spacing:.06em}.header nav a[aria-current="page"]{color:var(--violet);border-bottom:1px solid var(--violet);padding-bottom:5px}.back{color:var(--ink);text-decoration:none;border:1px solid #d5bc9e;border-radius:30px;padding:10px 15px;font-size:12px;background:#fffdfb}.back span{margin-right:6px;color:var(--violet)}.page-hero{padding:115px 10vw 100px;max-width:1050px}.eyebrow,.number{font:11px ui-monospace,monospace;letter-spacing:.16em;color:#8e796d}.page-hero h1{font-size:clamp(43px,6vw,77px);line-height:1.3;letter-spacing:.07em;margin:22px 0;font-weight:900}.page-hero h1 em{font-family:"Zen Kurenaido",sans-serif;font-style:normal;font-weight:400;color:var(--violet)}.lead{max-width:620px;color:var(--muted);line-height:2.1;font-size:15px}.content{padding:0 10vw 130px}.detail-section{border-top:1px solid var(--line);padding:80px 0;display:grid;grid-template-columns:15% 1fr;gap:30px}.detail-section h2{font-size:clamp(28px,3.4vw,46px);line-height:1.5;letter-spacing:.05em;margin:0 0 26px;font-weight:700}.detail-section h2 em{font-family:"Zen Kurenaido",sans-serif;font-style:normal;color:var(--violet);font-weight:400}.section-body{max-width:820px}.section-body>p{color:var(--muted);font-size:14px;line-height:2.1;margin:0 0 35px}.steps,.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.step,.info-card{border:1px solid var(--line);background:rgba(255,253,250,.7);border-radius:12px;padding:25px;min-height:195px;box-shadow:0 8px 22px rgba(132,104,78,.04)}.step b{display:block;font:11px ui-monospace,monospace;color:#917869;margin-bottom:27px}.step h3,.info-card h3{font-size:18px;line-height:1.6;margin:0 0 10px}.step p,.info-card p{font-size:12px;line-height:1.9;color:var(--muted);margin:0}.cards{grid-template-columns:repeat(2,1fr)}.info-card{min-height:165px}.notice{border-left:2px solid var(--violet);background:rgba(108,101,236,.06);padding:23px 25px;color:#4d5063;font-size:13px;line-height:2;margin-top:25px}.notice strong{color:var(--ink)}.scope-table{width:100%;border-collapse:collapse;font-size:13px}.scope-table th,.scope-table td{text-align:left;padding:18px 14px;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.7}.scope-table th{font-weight:700;color:var(--ink)}.scope-table td{color:var(--muted)}.cta{margin-top:65px;padding:60px 10%;text-align:center;border:1px solid var(--line);border-radius:14px;background:linear-gradient(135deg,#fffdf9,#f3eafc)}.cta h2{font-size:clamp(27px,4vw,48px);margin:0 0 15px}.cta p{font-size:14px;color:var(--muted);margin:0 0 27px}.button{display:inline-block;background:var(--ink);color:#fff;padding:14px 21px;border-radius:30px;text-decoration:none;font-size:13px;font-weight:700}.button span{margin-left:12px;color:#b9b2ff;font-size:17px}footer{border-top:1px solid var(--line);padding:28px 5.5vw;display:flex;align-items:center;justify-content:space-between;background:#fffaf4}footer p,footer a{font:10px ui-monospace,monospace;color:#766f75;letter-spacing:.08em;text-decoration:none}@media(max-width:800px){.header{height:68px;padding:0 6vw}.header nav{display:none}.brand small{display:none}.page-hero{padding:80px 8vw 70px}.content{padding:0 8vw 80px}.detail-section{display:block;padding:65px 0}.number{display:block;margin-bottom:22px}.steps,.cards{grid-template-columns:1fr}.scope-table{display:block;overflow-x:auto}.cta{padding:48px 7%}footer{padding:25px 6vw}footer p{display:none}}