:root{--paper:#f5f7f8;--white:#fff;--ink:#11161d;--muted:#5d6975;--line:#cbd2d8;--lime:#b9f227;--cyan:#19a8bd;--blue:#3458d8;--orange:#ff7043;--max:1260px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;letter-spacing:0}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.topbar{height:72px;padding:0 max(20px,calc((100vw - var(--max))/2));display:flex;align-items:center;gap:34px;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30;backdrop-filter:blur(16px)}.wordmark{display:flex;align-items:center;font-size:20px;font-weight:900}.wordmark i{width:29px;height:29px;background:var(--lime);display:grid;place-items:center;font-style:normal;margin-right:2px}.topbar nav{display:flex;gap:26px;margin-left:auto;font-size:13px;font-weight:700}.topbar nav a:hover,.top-actions>a:first-child:hover{color:var(--blue)}.top-actions{display:flex;align-items:center;gap:18px;font-size:13px;font-weight:700}.download-chip,.primary{background:var(--ink);color:white;padding:11px 18px;font-weight:800;display:inline-flex;justify-content:center}.nav-button{display:none;background:transparent;border:0;font-size:23px}.hero{height:min(850px,calc(100vh - 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