:root{color-scheme:light;--color-canvas: #f4f1e9;--color-paper: #fffdf8;--color-ink: #1c201f;--color-muted: #6c716e;--color-line: #dcd8cf;--color-accent: #1d4ed8;--color-accent-strong: #153ea8;--color-warm: #e76124;--color-success: #28704f;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 22px;--shadow-soft: 0 18px 50px rgb(39 38 33 / 8%);--font-sans: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--font-serif: "Songti SC", "Noto Serif SC", Georgia, serif}*{box-sizing:border-box}html{min-width:320px;background:var(--color-canvas)}body{margin:0;color:var(--color-ink);background:radial-gradient(circle at 73% 8%,rgb(231 97 36 / 8%),transparent 24rem),var(--color-canvas);font-family:var(--font-sans);-webkit-font-smoothing:antialiased}button,input,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgb(29 78 216 / 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