:root{--bg: #f7f1e5;--bg-soft: #f0e7d4;--card: #fffdf6;--ink: #4d443a;--ink-strong: #362f27;--muted: #a0907c;--accent: #d3835f;--accent-deep: #b96a45;--accent-soft: #f6e3d3;--tape: rgba(211, 131, 95, .26);--line: #e9dec9;--shadow: 0 2px 14px rgba(120, 90, 60, .08);--shadow-lift: 0 6px 22px rgba(120, 90, 60, .13)}:root[data-theme=dark]{--bg: #282320;--bg-soft: #302a26;--card: #363029;--ink: #e6dccc;--ink-strong: #f6efe1;--muted: #a2937f;--accent: #dd9a6e;--accent-deep: #e5b08a;--accent-soft: #453529;--tape: rgba(221, 154, 110, .2);--line: #463e35;--shadow: 0 2px 14px rgba(0, 0, 0, .22);--shadow-lift: 0 6px 22px rgba(0, 0, 0, .3)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,Segoe UI,system-ui,sans-serif;font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;transition:background .35s ease,color .35s 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