/* 标题模块 */
h1 {
    font-size: 3.5rem;
    margin-top: 50px;
    text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 15px #ff00de, 0 0 20px #ff00de, 0 0 25px #ff00de, 0 0 30px #ff00de, 0 0 35px #ff00de;
    animation: fadeIn 2s ease-in, pulse-scale 3s ease-in-out infinite;
    letter-spacing: 2px;
}