:root{--blue:#09204a;--blue2:#123a78;--red:#c92635;--gold:#c89a35;--ink:#111827;--muted:#667085;--line:#e7eaf0;--bg:#f6f8fb;--card:#fff}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.wrap{width:min(1180px,92vw);margin:auto}.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.topbar{background:var(--blue);color:#dfe7ff;font-size:13px;display:flex;justify-content:space-between;padding:6px 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