:root{--paper:#f7f8f4;--white:#ffffff;--silver:#e7ebee;--steel:#6f7f8a;--blue:#164b7a;--blue2:#2a6ca2;--gold:#b88b2e;--gold2:#e3c46e;--ink:#1f2b34;--muted:#63717b;--line:#d8dee2;--radius:22px;--shadow:0 18px 50px rgba(55,75,90,.14);--container:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Be Vietnam Pro","Inter","Segoe UI",Arial,sans-serif;background:linear-gradient(180deg,#fbfcfa 0%,#f2f5f5 52%,#fbfaf5 100%);color:var(--ink);line-height:1.65}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}.container{width:min(var(--container),calc(100% - 36px));margin:auto}.site-header{position:sticky;top:0;z-index:30;background:rgba(250,251,248,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(111,127,138,.18)}.nav-wrap{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.05em}.brand 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