:root{--bg-top: #fdf9f1;--bg-bottom: #e6f3ee;--ink: #34413d;--muted: #7d8a86;--coral: #f28b6e;--coral-soft: #fde6dc;--mint: #7cc4a2;--mint-soft: #e2f3ea;--sky: #7fb7dc;--card: rgba(255, 255, 255, .82);--line: rgba(52, 65, 61, .1);--shadow: 0 18px 50px -20px rgba(70, 110, 100, .35);--serif: "Fraunces", "ZCOOL XiaoWei", Georgia, serif;--zh: "ZCOOL XiaoWei", "Songti SC", serif;--sans: "Nunito", -apple-system, "PingFang SC", system-ui, sans-serif}*{box-sizing:border-box;margin:0}html{scroll-behavior:smooth}body{background:radial-gradient(circle at 78% 30%,#fff 0,#fff0 45%),linear-gradient(180deg,var(--bg-top),var(--bg-bottom)) 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