:root{--green: #2d6a4a;--green-light: #4c8b68;--green-pale: #e4ede6;--paper: #f4f1e8;--card: #ffffff;--ink: #1f1d22;--ink-soft: #5a5762;--line: #d9d3c4;--cinnabar: #b03528;--excellent: #2d6a4a;--good: #4c8b68;--pass: #b8873a;--improve: #b0563a;--diff-miss: #eb5a5a;--diff-over: #3c8cc8;--diff-hit: #bebebe;--kai: "Kaiti SC", STKaiti, KaiTi, "楷体", "Songti SC", serif;--sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--r: 16px;--shadow: 0 2px 10px rgba(31, 29, 34, .06)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0}body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;mix-blend-mode:multiply;opacity:.22;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' 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