/* 动画效果 */

/* 五角星旋转动画 */
@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.star {
    animation: rotate 10s linear infinite;
}

.star:nth-child(1) { animation-duration: 8s; }
.star:nth-child(2) { animation-duration: 12s; }
.star:nth-child(3) { animation-duration: 10s; }
.star:nth-child(4) { animation-duration: 15s; }
.star:nth-child(5) { animation-duration: 9s; }

/* 国旗摇摆动画 */
@keyframes wave {
    0%, 100% {
        transform: rotate(-5deg);
    }
    50% {
        transform: rotate(5deg);
    }
}

.flag-animation {
    animation: wave 2s ease-in-out infinite;
}

/* 滚动提示动画 */
@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.scroll-hint {
    animation: bounce 2s ease-in-out infinite;
}

/* 祝福卡片淡入动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.wish-card {
    animation: fadeInUp 0.6s ease-out;
}

.wish-card:nth-child(1) { animation-delay: 0.1s; }
.wish-card:nth-child(2) { animation-delay: 0.3s; }
.wish-card:nth-child(3) { animation-delay: 0.5s; }

/* 按钮点击效果 */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.game-btn:hover, .wish-btn:hover, .back-to-top:hover {
    animation: pulse 0.5s ease-in-out;
}

/* 烟花效果 */
@keyframes firework {
    0% {
        transform: translate(0, 0);
        opacity: 1;
    }
    100% {
        transform: translate(var(--x), var(--y));
        opacity: 0;
    }
}

.firework-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: white;
    animation: firework 1s ease-out forwards;
}

/* 结束语慢速淡入上升动画 */
@-webkit-keyframes fadeInUpSlow {
    from {
        opacity: 0;
        -webkit-transform: translateY(20px);
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
}

@keyframes fadeInUpSlow {
    from {
        opacity: 0;
        -webkit-transform: translateY(20px);
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
}

/* 星星闪烁动画 */
@-webkit-keyframes sparkle {
    0% {
        opacity: 0;
        -webkit-transform: scale(0);
        transform: scale(0);
    }
    50% {
        opacity: 1;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }
    100% {
        opacity: 0.8;
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}

@keyframes sparkle {
    0% {
        opacity: 0;
        -webkit-transform: scale(0);
        transform: scale(0);
    }
    50% {
        opacity: 1;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }
    100% {
        opacity: 0.8;
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}

/* 签名缩放淡入动画 */
@-webkit-keyframes fadeInScale {
    from {
        opacity: 0;
        -webkit-transform: scale(0.8);
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        -webkit-transform: scale(0.8);
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}