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:root{--color-ink:#1a1a1a;--color-paper:#f0efea;--color-surface:#f8f7f3;--color-line:#d5d2c8;--color-muted:#8d8d8d;--color-secondary-text:#6b6964;--color-brand:#e6a01f;--color-photo-canvas:#11120f;--color-photo-text:#f5f2ea;--color-photo-accent:#f0a62a;--color-danger:#b42318;--header-height:80px;--content-width:1200px;--reading-width:720px}*{box-sizing:border-box}html{scroll-behavior:smooth;min-width:320px}body{min-width:320px;color:var(--color-ink);background:var(--color-paper);letter-spacing:0;text-rendering:optimizelegibility;margin:0;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif}body:has([data-page-theme=dark]){background:var(--color-photo-canvas)}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit;letter-spacing:0}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--color-brand);outline-offset:3px}::selection{color:var(--color-ink);background:#e6a01f57}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (max-width:767px){:root{--header-height:64px}input,textarea,select{font-size:16px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}