@font-face{font-family:DongFangDaKai;src:url(https://db.onlinewebfonts.com/t/b4566997f6cae716f5a24511ea6dbb29.woff2)format("woff2");font-display:swap}:root{--bg:#f9f1db;--card:#fefcf7;--card-alt:#00000004;--ink:#1a1a1a;--muted:#6b6560;--faint:#999;--accent:#1ba784;--accent-light:#e0f0ea;--accent-deep:#12a182;--red:#c04851;--red-bright:#d42517;--blue:#2775b6;--gold:#e8b004;--gold-light:#f7e8aa;--border:#ddd8cc;--hover:#f5f0e4;--hidden:#e0d8c8;--shadow:0 2px 12px #0000000f;--radius:10px;--rate-wrong-bg:#f8d7da;--rate-wrong:#c04851;--rate-hard-bg:#fef3cd;--rate-hard:#e8b004;--rate-good-bg:#d4edda;--rate-good:#1ba784;--rate-easy-bg:#cce5ff;--rate-easy:#2775b6;--header-bg:#1ba784;--header-gradient:linear-gradient(135deg, #1ba784 0%, #12a182 50%, #0f8a6e 100%);--cn-title:"Noto Serif SC", "Songti SC", "SimSun", serif}[data-theme=dark]{--bg:#1a1520;--card:#231e2a;--card-alt:#ffffff08;--ink:#e0dce4;--muted:#a09aaa;--faint:#706a7a;--accent:#2ecc8a;--accent-light:#1a2e24;--accent-deep:#1ba784;--red:#ed556a;--red-bright:#d42517;--blue:#5dade2;--gold:#f0c040;--gold-light:#3c3010;--border:#332e3a;--hover:#2a2530;--hidden:#332e3a;--shadow:0 2px 12px #0000004d;--rate-wrong-bg:#3c1a1e;--rate-wrong:#ed556a;--rate-hard-bg:#3c3010;--rate-hard:#f0c040;--rate-good-bg:#1a3c24;--rate-good:#2ecc8a;--rate-easy-bg:#1a2a3c;--rate-easy:#5dade2;--header-bg:#1a1520;--header-gradient:linear-gradient(135deg, #1a1520 0%, #231e2a 100%)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg);color:var(--ink);min-height:100vh;font-family:DM Sans,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.6;transition:background .3s,color .3s;position:relative}body:before{content:"";opacity:.55;pointer-events:none;z-index:0;background:url(/texture.png);position:fixed;inset:0}[data-theme=dark] body:before{filter:invert();opacity:.18}body>#root{z-index:1;position:relative}a{color:var(--accent);text-decoration:none}a:hover{opacity:.8}button{cursor:pointer;font-family:inherit}.cn-title{font-family:var(--cn-title);letter-spacing:.04em;font-weight:700}.cn-display{font-family:"DongFangDaKai", var(--cn-title);letter-spacing:.12em;font-weight:400;line-height:1.2}.sticky-textured{background-color:var(--bg);isolation:isolate;position:relative}.sticky-textured:after{content:"";opacity:.55;pointer-events:none;z-index:0;background:url(/texture.png);position:absolute;inset:0}[data-theme=dark] .sticky-textured:after{filter:invert();opacity:.18}.sticky-textured>*{z-index:1;position:relative}.hideable{cursor:pointer;border-radius:4px;transition:all .2s;position:relative}.hidden-content{background:var(--hidden);-webkit-user-select:none;user-select:none;color:#0000!important}.hidden-content:hover{filter:brightness(.95)}.card-accent-bar{background:#d42517;height:4px;position:relative}.card-accent-bar:after{content:"";mix-blend-mode:overlay;border-radius:inherit;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.15'/%3E%3C/svg%3E");position:absolute;inset:0}