:root{--bg: #fcfcfd;--surface: #ffffff;--text: #1e2430;--muted: #5f6b7a;--border: #d9e0e8;--accent: #0b6efd;--accent-hover: #0957c3;--section-alt: #f3f6f9;--max-width: 1120px;--radius: 18px;--shadow: 0 10px 30px rgba(15, 23, 42, .08)}*{box-sizing:border-box}html{font-family:Plus Jakarta Sans,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:17px;background:var(--bg);color:var(--text)}body{margin:0;line-height:1.65}img{max-width:100%;display:block}a{color:inherit}.container{width:min(100% - 2rem,var(--max-width));margin:0 auto}.site-header{position:sticky;top:0;z-index:100;background:#fcfcfdeb;backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.header-inner,.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1rem 0}.brand{font-weight:700;font-size:1.1rem;text-decoration:none}.site-nav{display:flex;gap:1rem;flex-wrap:wrap}.site-nav 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