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infinite;}.hc-404-trail{position:absolute;top:18px;height:2px;background:linear-gradient(90deg,transparent,var(--color-primary),transparent);border-radius:2px;animation:hc404-trail 6s ease-in-out infinite;opacity:0.4;}@keyframes hc404-fly{0%{left:-40px;opacity:0;}10%{opacity:1;}50%{left:calc(50% - 14px);}90%{opacity:1;}100%{left:calc(100% + 40px);opacity:0;}}@keyframes hc404-trail{0%{left:-40px;width:0;opacity:0;}10%{opacity:0.4;}50%{left:10%;width:calc(50% - 24px);}90%{opacity:0.4;}100%{left:50%;width:calc(50% + 40px);opacity:0;}}[dir="rtl"] .hc-404-plane{animation-name:hc404-fly-rtl;}[dir="rtl"] .hc-404-trail{animation-name:hc404-trail-rtl;}@keyframes hc404-fly-rtl{0%{right:-40px;left:auto;opacity:0;transform:scaleX(-1);}10%{opacity:1;}50%{right:calc(50% - 14px);left:auto;transform:scaleX(-1);}90%{opacity:1;}100%{right:calc(100% + 40px);left:auto;opacity:0;transform:scaleX(-1);}}@keyframes 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