:root{--paper:#f4efe6;--card:#fffdf8;--ink:#1b1814;--muted:#6a6359;--line:#e4dccf;--accent:#b42318;--accent-soft:#f8e8e4;--ok:#2c6e4a;--shadow:0 1px 0 rgba(27,24,20,0.04),0 12px 32px rgba(27,24,20,0.05)}*{box-sizing:border-box}body,html{margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);font-family:Iowan Old Style,Palatino Linotype,Palatino,Songti SC,"Source Han Serif SC","Noto Serif SC",Georgia,serif;line-height:1.55;min-height:100vh}a{color:inherit}button,input{font:inherit}.wrap{width:min(1080px,calc(100% - 40px));margin:0 auto}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 88%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 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