:root{--ink: #0f2740;--paper: #f3f6f8;--card: #ffffff;--line: #d5dee6;--text: #1a2733;--muted: #3e4e5c;--accent: #8e2f22;--accent-soft: #f8ebe8;--teal: #0f5c56;--teal-soft: #e5f3f1;--draft: #6d4710;--draft-bg: #f6edd9;--shadow: 0 18px 40px rgba(15, 39, 64, .08);--serif: "Songti SC", "STSong", "Noto Serif SC", serif;--sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.6}h1,h2,h3{font-family:var(--serif);color:var(--ink);font-weight:700}h1{font-size:32px;line-height:1.3}h2{font-size:22px;margin:0 0 8px}h3{font-size:18px;margin:0 0 6px}p{margin:0 0 10px}a{color:var(--teal)}button,input,textarea,select{font:inherit;color:inherit}:focus-visible{outline:2px solid 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