body { margin: 0; padding: 0; }
@keyframes glowingEffect {
    0% {
        box-shadow: 0 0 8px 4px rgba(0, 255, 255, 0.6), 0 0 15px 8px rgba(0, 128, 255, 0.4), 0 0 20px 12px rgba(128, 0, 255, 0.3);
    }
    50% {
        box-shadow: 0 0 8px 4px rgba(0, 128, 255, 0.6), 0 0 15px 8px rgba(128, 0, 255, 0.4), 0 0 20px 12px rgba(0, 255, 255, 0.3);
    }
    100% {
        box-shadow: 0 0 8px 4px rgba(128, 0, 255, 0.6), 0 0 15px 8px rgba(0, 255, 255, 0.4), 0 0 20px 12px rgba(0, 128, 255, 0.3);
    }
}

#input-box {
    margin-top: 20px;
    padding: 10px;
    width: 100%;
    max-width: 300px;
    font-size: 16px;
    border: 2px solid transparent; /* 设置为透明以突出发光效果 */
    border-radius: 20px; /* 保持圆角 */
    box-sizing: border-box;
    outline: none;
    animation: glowingEffect 3s infinite alternate; /* 应用发光动效 */
    transition: box-shadow 0.3s ease-in-out; /* 平滑过渡动效 */
}

#button-container {
    position: relative;
    display: inline-block; /* 确保容器包裹按钮大小 */
    padding: 0;
    margin-top: 20px;
}

#button-container::before {
    content: "";
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: linear-gradient(45deg, #ffffff, #ffffff, #8000ff);
    border-radius: 25px; /* 保持与按钮类似的圆角，但略大一些 */
    z-index: -1; /* 保证背景在按钮下方 */
    filter: blur(8px); /* 使光环具有发光的效果 */
    animation: glowingEffect 3s linear infinite; /* 渐变色的动画效果 */
}

#submit-button {
    position: relative;
    margin-top: 20px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    width: 100%;
    max-width: 300px; /* 设置按钮的宽度 */
    overflow: hidden; /* 确保动画不会超出按钮的范围 */
}

#submit-button img {
    display: block;
    width: 100%;
    border-radius: 20px; /* 保持按钮圆角 */
}

#submit-button::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.6) 50%, rgba(255, 255, 255, 0) 100%);
    transform: skewX(-30deg);
    animation: sweep 3s infinite;
}

@keyframes sweep {
    0% {
        left: -100%;
    }
    50% {
        left: 100%;
    }
    100% {
        left: 100%;
    }
}