:root{--bg:#faf6ef;--card:#fffdf8;--ink:#3d3630;--sub:#9b8f80;--accent:#c96f4a;
--pink:#fdeef0;--pink-line:#e8a0ac;--blue:#e8f1fa;--blue-line:#7fa8d0;--mark:#f9e3c8;
--pink-ink:#b05a68;--blue-ink:#4a6f96;--line:#eee2d4}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
body{background:var(--bg);color:var(--ink);
font-family:var(--font,'Noto Serif SC',Georgia,serif);font-size:17px;line-height:1.9}
a{color:var(--accent);text-decoration:none}
.wrap{max-width:640px;margin:0 auto;padding:16px}
button{font-family:inherit;cursor:pointer;border:none;border-radius:10px}