:root{--ink:#302c24;--gold:#765c21;--line:#e7e2d8;--muted:#756d5e;--paper:#faf8f3}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font:16px/1.8 system-ui,-apple-system,"Noto Sans JP",sans-serif}a{color:var(--gold);text-underline-offset:4px}header{background:#fff;display:flex;align-items:center;justify-content:space-between;padding:20px max(24px,calc((100% - 1080px)/2));border-bottom:1px solid var(--line);gap:24px}header>a:last-child{font-size:13px}.brand{font-weight:800;font-size:26px;white-space:nowrap;text-decoration:none;color:var(--ink)}main{max-width:1128px;padding:55px 24px 70px;margin:auto}.eyebrow{font-size:13px;color:var(--muted);letter-spacing:.1em;margin:0 0 10px}h1{font-family:serif;font-size:44px;line-height:1.45;letter-spacing:.03em;margin:0 0 14px}.intro{color:var(--muted);margin-bottom:30px}.steps{list-style:none;padding:0;display:flex;gap:12px;margin:25px 0 32px;color:var(--muted);font-size:14px}.steps li{padding:8px 20px;border-bottom:2px solid var(--line)}.steps [aria-current]{color:var(--gold);border-color:var(--gold);font-weight:700}.layout{display:grid;grid-template-columns:360px 1fr;gap:28px;align-items:start}.summary,.panel{background:white;border:1px solid var(--line);border-radius:12px;padding:30px}.summary{background:#f5f0e3}.price{font-size:38px;font-weight:750;line-height:1.4;margin:10px 0}.price span{font-size:13px;font-weight:500;display:block}.summary ul{padding-left:20px;margin:25px 0}.summary li{margin:10px 0;font-size:14px}.small{font-size:13px;color:var(--muted)}h2{font-size:21px;margin:0 0 12px}h3{font-size:17px}label{display:block;font-size:14px;font-weight:650;margin:22px 0}input:not([type=checkbox]):not([type=radio]){display:block;width:100%;border:1px solid #bcb4a4;background:white;border-radius:4px;font:inherit;font-size:16px;padding:12px;margin-top:7px}input:focus-visible,button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #b59034;outline-offset:3px}button{font:inherit;cursor:pointer;border:1px solid var(--gold);border-radius:4px;background:var(--gold);color:white;min-height:52px;padding:12px 20px;font-weight:700;width:100%;margin-top:12px}button:disabled{opacity:.6;cursor:wait}.secondary{background:white;color:var(--gold)}.check{font-weight:400;line-height:1.7}.check input{width:18px;height:18px;vertical-align:middle;margin-right:7px}.conditions{border-top:1px solid var(--line);margin-top:28px}dt{font-weight:700;margin-top:15px;font-size:14px}dd{margin:4px 0 0;font-size:14px;overflow-wrap:anywhere}.notice{background:#f5f0e3;padding:14px;border-left:3px solid var(--gold);font-size:14px}#error{color:#a03426;white-space:pre-wrap;font-size:14px}footer{border-top:1px solid var(--line);padding:30px 24px;text-align:center;font-size:12px;color:var(--muted)}footer a{display:inline-block;margin:4px 10px}details{border-top:1px solid #ddd3be;padding-top:15px;font-size:13px}summary{cursor:pointer;font-weight:700}.mobile{display:none}[hidden]{display:none!important}.receipt{max-width:720px}.registration{background:#f5f0e3;padding:24px;text-align:center}.registration strong{font-size:30px;letter-spacing:.12em}.button{display:inline-block;background:var(--gold);color:white;padding:12px 24px;border-radius:4px;text-decoration:none;font-weight:700;margin:15px 0}@media(max-width:760px){main{padding:32px 20px 45px}.layout{grid-template-columns:1fr;gap:22px}.summary{order:2}.panel{padding:24px 20px}h1{font-size:34px}.steps{gap:3px;font-size:12px}.steps li{padding:7px 9px}header{padding:16px 20px}.mobile{display:block}.price span{display:inline-block;margin-left:8px}.brand{font-size:22px}}

.brand{display:flex;align-items:center}.brand img{display:block;width:170px;max-width:100%;height:auto}.plan-picker{border:0;padding:0;margin:24px 0 30px;min-width:0}.plan-picker legend{font-size:15px;font-weight:700;margin-bottom:10px}.plan-option{display:flex;align-items:flex-start;gap:12px;border:1px solid var(--line);border-radius:8px;padding:16px;margin:10px 0;background:white;cursor:pointer;font-weight:400}.plan-option:has(input:checked){border-color:var(--gold);box-shadow:0 0 0 1px var(--gold);background:#fcf9ef}.plan-option input{accent-color:var(--gold);width:18px;height:18px;flex:0 0 18px;margin:6px 0 0}.plan-option>span{min-width:0}.plan-name{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-weight:700}.plan-option strong{display:block;font-size:27px;line-height:1.5;margin:5px 0}.plan-option strong>span{font-size:12px;font-weight:500;margin-left:5px}.plan-option small{display:block;color:var(--muted);font-size:12px;font-weight:400}.saving{font-size:11px;display:inline-block;background:#eee3bf;color:#65501c;border-radius:4px;padding:1px 7px}.plan-note{margin:10px 0;line-height:1.7}@media(max-width:760px){.brand img{width:142px}header{gap:14px}.plan-option{padding:13px}.plan-option strong{font-size:25px}}