:root{
  --bg:#f7f7f5;--surface:#fff;--ink:#171717;--muted:#666;--line:#deded8;--accent:#7b2431;--accent-dark:#561923;--soft:#f1ebe9;--max:1120px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;color:var(--ink);background:var(--bg);line-height:1.75}a{color:inherit}.container{width:min(var(--max),calc(100% - 40px));margin:auto}.ad-disclosure{font-size:12px;text-align:center;padding:7px 12px;background:#161616;color:#fff}.site-header{position:sticky;top:0;z-index:20;background:rgba(247,247,245,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:24px}.brand{text-decoration:none;font-weight:900;letter-spacing:.08em;font-size:21px}.brand span{color:var(--accent)}.main-nav{display:flex;gap:26px}.main-nav a,.footer-links a{font-size:14px;text-decoration:none;color:#444}.menu-button{display:none;border:1px solid var(--line);background:#fff;padding:10px 14px;border-radius:7px}.hero{padding:82px 0 58px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:56px;align-items:center}.eyebrow{font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--accent);margin:0 0 10px}.hero h1{font-size:clamp(38px,6vw,68px);line-height:1.12;margin:0 0 24px;letter-spacing:-.04em}.hero-copy{font-size:18px;color:#4b4b4b;max-width:700px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 18px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 20px;border-radius:8px;text-decoration:none;border:1px solid transparent;font-weight:700;font-size:14px;cursor:pointer}.primary{background:var(--accent);color:#fff}.primary:hover{background:var(--accent-dark)}.secondary{background:#fff;border-color:var(--line);color:var(--ink)}.disabled{opacity:.55;pointer-events:none}.microcopy{font-size:12px;color:var(--muted)}.hero-panel{background:#1b1b1b;color:#fff;border-radius:18px;padding:32px}.panel-label{font-size:13px;color:#c7c7c7;margin-top:0}.check-list{padding:0;margin:20px 0 0;list-style:none}.check-list li{padding:13px 0;border-top:1px solid #383838}.check-list li:before{content:"✓";margin-right:10px;color:#e7b8c0}.quick-nav{padding:0 0 70px}.quick-nav h2{font-size:22px}.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.quick-card{background:var(--surface);border:1px solid var(--line);padding:22px;text-decoration:none;border-radius:12px}.quick-card strong,.quick-card span{display:block}.quick-card span{font-size:13px;color:var(--muted);margin-top:4px}.section{padding:74px 0}.section.alt{background:#efefec}.section-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:32px}.section-head h2{font-size:clamp(28px,4vw,42px);line-height:1.2;margin:0}.section-head>p{max-width:480px;color:var(--muted);margin:0}.article-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:16px}.article-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:26px;min-height:280px;display:flex;flex-direction:column}.article-card.featured{background:#201f1f;color:#fff}.article-card h3{font-size:21px;line-height:1.5;margin:18px 0 10px}.article-card p{color:var(--muted)}.article-card.featured p{color:#c9c9c9}.article-card a{margin-top:auto;font-weight:700;text-decoration:none}.tag{display:inline-block;width:max-content;font-size:11px;font-weight:800;letter-spacing:.05em;background:var(--soft);color:var(--accent);padding:5px 9px;border-radius:999px}.score-box{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.score-item{background:#fff;border:1px solid var(--line);padding:24px;border-radius:12px}.score-item span{font-size:12px;color:var(--accent);font-weight:800}.score-item strong{display:block;font-size:20px;margin-top:8px}.score-item p{font-size:13px;color:var(--muted)}.notice-box{margin-top:20px;border-left:4px solid var(--accent);background:#fff;padding:18px 22px}.notice-box p{margin:4px 0 0;color:var(--muted)}.sale-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px;display:flex;align-items:center;justify-content:space-between;gap:30px}.sale-card h3{font-size:24px;margin:14px 0 8px}.sale-card p{color:var(--muted);max-width:700px}.guide-links{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.guide-links a{background:#fff;border:1px solid var(--line);padding:18px;text-decoration:none;border-radius:10px;font-weight:700}.site-footer{background:#171717;color:#fff;padding:48px 0 20px}.footer-grid{display:flex;justify-content:space-between;gap:30px}.footer-grid p{color:#aaa;font-size:13px}.footer-links{display:flex;flex-wrap:wrap;gap:18px}.footer-links a{color:#ccc}.copyright{border-top:1px solid #333;margin-top:34px;padding-top:18px;color:#777;font-size:12px}.age-gate{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.78);padding:20px}.age-card{width:min(470px,100%);background:#fff;border-radius:16px;padding:34px}.age-card h2{font-size:30px;margin:5px 0 12px}.age-card p{color:var(--muted)}.age-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.age-message{min-height:24px;font-size:13px}.age-gate.hidden{display:none}
@media(max-width:820px){.hero-grid,.article-grid{grid-template-columns:1fr}.quick-grid,.score-box,.guide-links{grid-template-columns:repeat(2,1fr)}.section-head,.sale-card,.footer-grid{align-items:flex-start;flex-direction:column}.main-nav{display:none;position:absolute;left:20px;right:20px;top:70px;flex-direction:column;background:#fff;border:1px solid var(--line);padding:18px;border-radius:10px}.main-nav.open{display:flex}.menu-button{display:block}.hero{padding-top:52px}}
@media(max-width:520px){.container{width:min(100% - 28px,var(--max))}.quick-grid,.score-box,.guide-links{grid-template-columns:1fr}.hero-actions,.age-actions{flex-direction:column}.button{width:100%}.hero h1{font-size:40px}.section{padding:56px 0}.hero-panel{padding:26px}}