*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--bg:#FFFFFF;--bg-surface:#F7F7F7;--text:#0A0A0A;--text-muted:#5C5C5C;--text-subtle:#ADADAD;--border:rgba(0,0,0,0.07);--border-mid:rgba(0,0,0,0.14);--max-width:1120px;--padding-x:clamp(24px,5vw,80px);--nav-height:68px}html{scroll-behavior:smooth}body{background-color:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Inter,Segoe UI,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit}h1,h2,h3,h4,h5,h6{font-weight:inherit;line-height:inherit}ol,ul{list-style:none}