:root{--paper:#f6f5f0;--ink:#172d35;--muted:#647578;--line:#d9dfd9;--teal:#147d73;--orange:#c87442;--blue:#4c73af;--purple:#8c62a3}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:15px;line-height:1.65}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}header{background:#18353a;color:#f0f2e8}.top{max-width:1220px;margin:auto;padding:26px 36px;display:flex;justify-content:space-between;border-bottom:1px solid #426065;gap:20px}.brand{font-size:13px;letter-spacing:2px;font-weight:750}.brand span{color:#8ebeb0}nav{display:flex;gap:28px;font-size:13px;color:#cee0d5}.hero{max-width:1220px;margin:auto;padding:58px 36px 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