html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    position: relative;
}

.显示隐藏内容 {
    cursor: pointer;
    user-select: none;
    border-radius: 8px;
}


.隐藏内容 {
    display: none;
    border-radius: 12px;
    border: 1px solid #000;
    cursor: pointer;
    position: relative;
    overflow: visible;
    padding: 0px 10px;
}

.音频播放器 {
    width: 100%;
}

.正确选项 {
    cursor: pointer;
    user-select: none;
    position: relative;
}

.闪电图标容器 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: visible;
    z-index: 1;
}

.闪电旋转容器 {
    position: absolute;
    width: 80px;
    height: 80px;
    pointer-events: none;
    transform-origin: center center;
}

.左边旋转 {
    animation: 左边旋转动画 1s linear infinite;
}

.右边旋转 {
    animation: 右边旋转动画 1s linear infinite;
}

@keyframes 左边旋转动画 {
    0% {
        transform: translateY(-50%) rotate(0deg);
    }
    100% {
        transform: translateY(-50%) rotate(360deg);
    }
}

@keyframes 右边旋转动画 {
    0% {
        transform: translateY(-50%) rotate(0deg);
    }
    100% {
        transform: translateY(-50%) rotate(-360deg);
    }
}

.闪电图标 {
    position: absolute;
    font-size: 24px;
    text-shadow: 0 0 10px #f9ca24, 0 0 20px #f9ca24, 0 0 30px #f9ca24;
    opacity: 0;
    animation: 闪电图标出现 0.6s ease-out forwards;
    transform-origin: center;
}

@keyframes 闪电图标出现 {
    0% {
        opacity: 0;
        transform: scale(0) rotate(0deg);
        filter: brightness(0);
    }
    20% {
        opacity: 1;
        transform: scale(1.5) rotate(180deg);
        filter: brightness(3);
    }
    40% {
        opacity: 1;
        transform: scale(1.2) rotate(360deg);
        filter: brightness(2.5);
    }
    60% {
        opacity: 1;
        transform: scale(1.3) rotate(540deg);
        filter: brightness(3.5);
    }
    80% {
        opacity: 0.9;
        transform: scale(1.1) rotate(720deg);
        filter: brightness(2);
    }
    100% {
        opacity: 0;
        transform: scale(0.8) rotate(900deg);
        filter: brightness(1);
    }
}

.烟花容器 {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 200px;
    pointer-events: none;
    z-index: 10000;
}

.烟花粒子 {
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    pointer-events: none;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

@keyframes 烟花爆炸 {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
    100% {
        transform: translate(calc(-50% + var(--x)), calc(-50% + var(--y))) scale(0);
        opacity: 0;
    }
}