:root{--cuhk-purple: #7B287D;--cuhk-purple-dark: #581A5A;--cuhk-purple-light: #9C4D9E;--cuhk-gold: #C8A04C;--ink: #1f1f23;--ink-soft: #4a4a55;--muted: #6b6b76;--rule: #e5e5ec;--bg: #ffffff;--bg-soft: #f6f4f8;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04), 0 2px 8px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .06), 0 12px 28px rgba(0, 0, 0, .06);--radius: 6px;--max-w: 1200px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;--font-serif: "Lora", Georgia, "Times New Roman", serif}*{box-sizing:border-box}html{scroll-behavior:smooth}html,body{margin:0;padding:0}body{font-family:var(--font-sans);color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}img,svg{max-width:100%;height:auto;display:block}a{color:var(--cuhk-purple);text-decoration:none;transition:color .15s 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