:root{color-scheme:light;--paper: #f3f5ef;--surface: #ffffff;--ink: #182722;--muted: #69766f;--line: #d9ded7;--forest: #123b34;--forest-deep: #0b2823;--mint: #62d6b4;--coral: #ff684a;--yellow: #f4cb61;--shadow: 0 16px 38px rgba(20, 43, 36, .11)}*{box-sizing:border-box;letter-spacing:0}html{scroll-behavior:smooth;background:#dde2dc}body{min-width:0;margin:0;color:var(--ink);background:#dde2dc;font-family:Microsoft YaHei UI,PingFang SC,sans-serif;-webkit-font-smoothing:antialiased}button,a,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{color:inherit}a{color:inherit;text-decoration:none}.site-shell{position:relative;width:min(100%,480px);min-height:100vh;margin:0 auto;overflow-x:clip;background:var(--paper);box-shadow:0 0 56px #142b2424}.topbar{position:sticky;z-index:40;top:0;display:flex;align-items:center;justify-content:space-between;height:64px;padding:0 18px;border-bottom:1px solid 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