:root{--ink:#0d1916;--muted:#5d6d67;--paper:#f4f3eb;--card:#fffef8;--line:#d7ddd6;--green:#0d704e;--dark:#061511;--lime:#c9f26f;--orange:#ee8f43}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);margin:0;font-family:Arial,PingFang SC,Microsoft YaHei,sans-serif}a{color:inherit}.shell{width:min(1160px,100% - 40px);margin-inline:auto}.nav{border-bottom:1px solid #0d191624;justify-content:space-between;align-items:center;height:76px;display:flex}.brand{color:inherit;letter-spacing:-.04em;align-items:center;gap:11px;font-size:20px;font-weight:900;text-decoration:none;display:inline-flex}.brandMark{background:var(--dark);width:35px;height:35px;color:var(--lime);border-radius:11px;place-items:center;font-weight:950;display:grid}.nav nav{align-items:center;gap:25px;display:flex}.nav nav a{color:#43534d;font-size:14px;font-weight:750;text-decoration:none}.nav nav 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