body {
    margin: 0;
    padding: 0;
    user-select: none;
    touch-action: none;
    -webkit-user-select: none;
    -webkit-text-size-adjust: 100% !important;
    text-size-adjust: 100% !important;
    -moz-text-size-adjust: 100% !important;
}

/* Vùng chứa lá */
.leaf-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    pointer-events: none;
    z-index: 999;
    overflow: hidden;
}

/* Hiệu ứng rơi */
@keyframes fall {
    0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
    }
    50% {
    transform: translateY(100vh) translateX(30px) rotate(180deg);
    opacity: 0.7;
    }
    100% {
    transform: translateY(200vh) translateX(-30px) rotate(360deg);
    opacity: 0;
    }
}

.leaf {
    position: fixed;
    top: -100px;
    left: var(--left);
    width: 70px;
    height: 70px;
    background-size: contain;
    animation: fall 20s linear infinite;
    animation-delay: var(--delay);
    pointer-events: none;
}

/* Lá loại 1 */
.leaf1 {
    background: url('https://media.cskh14.com/public/789bet/site-chuyendoi/5ec15259-fe3a-4f9f-a57e-70dd7971df1a.png') no-repeat center center;
}
.leaf1{
    position: fixed;
    top: -100px;
    left: var(--left);
    width: 70px;
    height: 70px;
    background-size: contain;
    animation: fall 20s linear infinite;
    animation-delay: var(--delay);
    pointer-events: none;
}
/* Lá loại 2 */
.leaf2 {
    background: url('https://media.cskh14.com/public/789bet/site-chuyendoi/1ba5a7d5-4594-4865-a8ea-c5e3908b924b.png') no-repeat center center;
}
.leaf2{
    position: fixed;
    top: -100px;
    left: var(--left);
    width: 70px;
    height: 70px;
    background-size: contain;
    animation: fall 20s linear infinite;
    animation-delay: var(--delay);
    pointer-events: none;
}