:root{color-scheme:light;--ink:#201c1b;--muted:#726b65;--paper:#fbf8f2;--card:#fff;--line:#e8e0d4;--brand:#b85527;--accent:#ecae45;--dark:#282128;--radius:22px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.8 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%}.wrap{width:min(1120px,calc(100% - 40px));margin:auto}.topbar{background:rgba(251,248,242,.95);border-bottom:1px solid 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