:root{--navy:#13233f;--navy2:#1c3558;--cobalt:#315efb;--blue:#315efb;--aqua:#00a99d;--lime:#d9ff62;--paper:#fbfaf6;--ivory:#f2f0e8;--surface:#fff;--ink:#152033;--muted:#667083;--line:#d9d7ce;--water:#dff5f2;--green:#087e72;--red:#d54d4d;--amber:#b66f00;--glass:rgba(251,250,246,0.82);--shadow:0 24px 64px rgba(19,35,63,0.12);--shadow2:0 10px 30px rgba(19,35,63,0.08);--r:22px;--ease:cubic-bezier(0.4,0,0.2,1);--portal-bg:#f4f3ee;--portal-soft:#f8f7f2}[data-beyuka-theme=dark]{--cobalt:#4b7bff;--blue:#4b7bff;--aqua:#2bc4b8;--paper:#0d1526;--ivory:#0a1220;--surface:#1a2840;--ink:#f2f0e8;--muted:#aeb9ca;--line:#2a3f5c;--water:#0f2a35;--glass:rgba(13,21,38,0.84);--shadow:0 24px 64px rgba(0,0,0,0.46);--shadow2:0 12px 34px rgba(0,0,0,0.3);--portal-bg:#0b1322;--portal-soft:#101c30}*{box-sizing:border-box}html{scroll-behavior:smooth}.bk-wrap{width:min(1180px,calc(100% - 48px));margin:auto}.bk-nav{position:-webkit-sticky;position:sticky;top:0;z-index:50;border-bottom:1px solid color-mix(in 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