:root{--bg:#f7f7fb;--card:#fff;--ink:#18181b;--muted:#686873;--line:#e6e4ef;--brand:#6f3ff5;--brand2:#8a67ff;--soft:#f0ebff;--good:#0a7a4b;--warn:#9a6500;--radius:20px;--shadow:0 10px 30px rgba(38,24,76,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;line-height:1.75}a{color:inherit}.wrap{width:min(1120px,calc(100% - 36px));margin:auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(247,247,251,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.header-in{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:900;letter-spacing:.02em}.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--brand);display:grid;place-items:center;color:#fff;font-size:18px}.brand small{font-size:11px;letter-spacing:.18em;color:var(--brand);display:block;line-height:1}.nav{display:flex;gap:18px;flex-wrap:wrap}.nav a{text-decoration:none;color:#4f4f59;font-size:14px;font-weight:700}.hero{padding:76px 0 48px}.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid #d9cffd;background:var(--soft);color:#5630c5;padding:6px 11px;border-radius:999px;font-size:12px;font-weight:800}.hero h1{font-size:clamp(38px,6vw,72px);line-height:1.05;letter-spacing:-.045em;margin:18px 0 22px}.hero p{font-size:clamp(17px,2vw,21px);color:var(--muted);max-width:780px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:13px;border:1px solid var(--line);text-decoration:none;font-weight:800;background:#fff}.btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}.btn.disabled{opacity:.55;pointer-events:none}.section{padding:34px 0 64px}.section h2{font-size:clamp(26px,4vw,38px);margin:0 0 10px;letter-spacing:-.025em}.lead{color:var(--muted);margin:0 0 26px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.product-card{display:flex;flex-direction:column;min-height:100%}.product-icon{width:64px;height:64px;border-radius:18px;margin-bottom:16px}.meta-row{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 14px}.badge{display:inline-flex;padding:4px 9px;border-radius:999px;background:#f1f1f5;font-size:11px;font-weight:800;color:#555}.badge.brand{background:var(--soft);color:#5630c5}.badge.good{background:#e8f7ef;color:var(--good)}.badge.warn{background:#fff5da;color:var(--warn)}.product-card h3{margin:0;font-size:22px}.product-card p{color:var(--muted)}.card-link{margin-top:auto;font-weight:800;color:var(--brand);text-decoration:none}.filters{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 26px}.filter{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;cursor:pointer;font-weight:700}.filter.active{background:var(--brand);border-color:var(--brand);color:#fff}.product-hero{display:grid;grid-template-columns:110px 1fr;gap:24px;align-items:center;padding:64px 0 34px}.product-hero img{width:110px;height:110px;border-radius:28px}.product-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.08;margin:8px 0 10px;letter-spacing:-.04em}.info-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:22px 0}.info{background:#fff;border:1px solid var(--line);border-radius:15px;padding:14px}.info b{display:block;font-size:12px;color:var(--muted);margin-bottom:2px}.features{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;padding:0;list-style:none}.features li{background:#fff;border:1px solid var(--line);border-radius:14px;padding:13px 15px}.features li:before{content:"✓";font-weight:900;color:var(--brand);margin-right:9px}.prose{max-width:850px}.prose h1,.prose h2,.prose h3{line-height:1.35;letter-spacing:-.02em}.prose h1{font-size:42px}.prose h2{margin-top:42px}.prose code{background:#eeeaf9;padding:2px 6px;border-radius:6px}.notice{border-left:4px solid var(--brand);background:var(--soft);padding:14px 16px;border-radius:0 14px 14px 0}.site-footer{border-top:1px solid var(--line);padding:32px 0 48px;color:var(--muted);font-size:13px}.footer-in{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer-links{display:flex;gap:14px;flex-wrap:wrap}.footer-links a{text-decoration:none}.empty{padding:26px;border:1px dashed #cfcbdc;border-radius:16px;color:var(--muted)}
@media(max-width:800px){.grid{grid-template-columns:1fr}.nav{display:none}.hero{padding-top:48px}.product-hero{grid-template-columns:76px 1fr}.product-hero img{width:76px;height:76px;border-radius:20px}.info-list{grid-template-columns:repeat(2,minmax(0,1fr))}.features{grid-template-columns:1fr}}
@media(max-width:480px){.wrap{width:min(100% - 24px,1120px)}.hero h1{font-size:42px}.product-hero{grid-template-columns:1fr}.info-list{grid-template-columns:1fr}}