:root{--bg:#fff;--soft:#f5f8fc;--soft2:#edf4fb;--blue:#3f8fe5;--blue2:#245f9e;--deep:#153f66;--title:#16283c;--text:#43566a;--muted:#718296;--line:#dce7f2;--tag:#eaf4ff;--footer:#123958;--max:1180px;--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:16px/1.75 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:#fff;overflow-x:hidden}a{color:var(--blue2);text-decoration:none}a:hover{text-decoration:underline}button,a{touch-action:manipulation}button:focus-visible,a:focus-visible{outline:3px solid rgba(63,143,229,.35);outline-offset:3px}img,svg{max-width:100%;height:auto}.safety-strip{padding:8px 18px;text-align:center;background:var(--soft2);color:#365878;font-size:14px;border-bottom:1px solid var(--line)}.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid 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