:root{--brand:rgb(255,80,0);--brand-dark:#E85A00;--light-orange:#FFF3EC;--page:#F6F6F6;--text:#222;--muted:#555;--soft:#777;--dark:#070707;--footer:#1F1F1F;--card:#fff;--line:rgba(20,20,20,.08);--shadow:0 18px 46px rgba(0,0,0,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:#fff;color:var(--text);line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}p{margin:0 0 14px;color:var(--muted)}h1,h2,h3{margin:0 0 14px;line-height:1.25;color:var(--text)}.container{width:min(1180px,calc(100% - 32px));margin:0 auto}.section{padding:58px 0}.alt-section{background:var(--page)}.content-section{background:#fff}.section-head{max-width:780px;margin:0 0 30px}.section-head h2{font-size:clamp(26px,4vw,40px)}.section-head 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