:root{--bg: #f6f6f4;--surface: #fff;--ink: #111;--muted: #5c5c56;--line: #e7e7e2;--mark: #c8f31d;--danger: #b91c1c;--font: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--max: 1180px}*,*:before,*:after{box-sizing:border-box}html,body{min-height:100dvh;margin:0}body{display:flex;flex-direction:column;font-family:var(--font);color:var(--ink);background-color:var(--bg);background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:28px 28px;font-size:16px;line-height:1.55}main{flex:1 0 auto;width:100%;padding-bottom:48px}a{color:inherit}img{max-width:100%}:focus-visible{outline:2px solid #111;outline-offset:2px}.wrap{width:min(var(--max),calc(100% - 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