:root{--bg:#f7f8fa;--surface:#fff;--text:#111827;--muted:#667085;--line:#e4e7ec;--accent:#111827;--accent-soft:#eef2f6;--success:#067647;--danger:#b42318}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);margin:0;font-family:Arial,Helvetica,sans-serif}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}.site-header{border-bottom:1px solid var(--line);z-index:10;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffff0;justify-content:space-between;align-items:center;height:68px;padding:0 24px;display:flex;position:sticky;top:0}.brand{letter-spacing:.14em;font-size:18px;font-weight:900}.site-header nav,.site-footer div{color:var(--muted);gap:18px;font-size:14px;display:flex}.site-header nav a:hover,.site-footer a:hover{color:var(--text)}main{min-height:calc(100vh - 120px)}.container{width:min(1080px,100% - 32px);margin:0 auto}.hero{text-align:center;padding:76px 0 48px}.hero 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