:root{--ink:#2f302c;--accent:#d99855;--accent2:#e98a00;--beige:#faf8f4;--sub:#eee9df;--green:#4caf50;--red:#e05a5a;--line:#e2ddd6;--muted:#777;--white:#fff;--shadow:0 2px 12px rgba(0,0,0,.06)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:"Noto Sans JP",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:17px;line-height:1.75}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.container{width:min(1344px,calc(100% - 56px));margin:auto}.eb-icon{width:1.3em;height:1.3em;display:inline-block;vertical-align:-.22em}.eb-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:0 22px;border-radius:4px;font-weight:800;border:1px solid transparent;transition:.18s}.eb-btn:hover{filter:brightness(.97)}.eb-btn-primary{background:linear-gradient(90deg,#e98a00,#e1a41b);color:#fff}.eb-btn-outline{border-color:#d48b4e;color:#b86a26;background:#fff}.amazon-btn{background:#ed8b00;color:#fff;border-color:#ed8b00}.amazon-btn.disabled{pointer-events:none;opacity:.55}.stars{color:#f3a000;letter-spacing:.02em}.rating{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.rating small{color:#666}.prime{font-size:13px;font-weight:700;color:#188bd0}.muted{color:#888}.rank-1{background:#e4a20a!important}.rank-2{background:#aaa!important}.rank-3{background:#c76f38!important}
@media(max-width:767px){body{font-size:16px}.container{width:calc(100% - 28px)}.eb-btn{min-height:42px;padding:0 17px}}

#comparisons,#problems{scroll-margin-top:110px}