:root{--red: #E0452F;--blue: #2E6FBF;--green: #3E9B6C;--yellow: #E8A93B;--ink: #1d2026;--body: #3c4250;--muted: #6b7080;--bg: #ffffff;--soft: #f7f8fb;--line: #e7e9ef;--radius: 16px;--maxw: 1080px;--grad: linear-gradient(90deg, var(--red), var(--yellow), var(--green), var(--blue))}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Roboto,system-ui,-apple-system,Segoe UI,sans-serif;color:var(--body);background:var(--bg);line-height:1.65;font-size:17px}img{max-width:100%}a{color:var(--blue)}h1,h2,h3{color:var(--ink);line-height:1.25;font-weight:800}h2{font-size:1.7rem;margin:0 0 16px}h3{font-size:1.15rem;margin:0 0 8px}p{margin:0 0 16px}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}section{padding:56px 0}section:nth-of-type(2n){background:var(--soft)}.btn{display:inline-block;padding:15px 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