:root{--bg: #f3ede1;--ink: #1c1814;--muted: #6b5f4e;--accent: #8b2e2e;--card: #faf5e9;--border: #d9ccb4;--shadow-tone: #b39c7d;--serif: "Noto Serif TC", "Source Han Serif TC", "Songti TC", serif;--display: "Cormorant Garamond", "Noto Serif TC", serif}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg);color:var(--ink);font-family:var(--serif);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{min-height:100vh;position:relative;overflow-x:hidden}body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.3;z-index:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.11 0 0 0 0 0.09 0 0 0 0 0.08 0 0 0 0.08 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' 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fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media(min-width:640px){.welcome-title{font-size:56px}.quiz-question{font-size:26px}.type-code{font-size:76px}}