:root{--brand:#0a51a1;--brand-dark:#073a75;--brand-soft:#e7eef8;--accent:#f2b200;--navy:#0b1d38;--navy-2:#102a4f;--bg:#f7f8fa;--bg-soft:#edf0f4;--surface:#fff;--border:#d5dbe3;--text:#13202f;--text-soft:#3c4a5b;--text-muted:#687587;--max-width:1400px;--radius:4px;--t:.18s ease;--font:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Noto Sans Thai", "Leelawadee UI", Tahoma, sans-serif}[data-theme=dark]{--brand:#6ea5f0;--brand-dark:#4d8eef;--brand-soft:#13243d;--bg:#0a1119;--bg-soft:#0f1924;--surface:#121d2a;--border:#253445;--text:#e6ecf3;--text-soft:#b4c0cd;--text-muted:#8795a6}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}html,body{overflow-x:clip}body{font-family:var(--font);color:var(--text);background:var(--bg);transition:background var(--t), color var(--t);margin:0;font-size:17px;line-height:1.7}:lang(th) body,html:lang(th) 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