/* 动态渐变背景与动画 */
body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
    background: linear-gradient(45deg, #FF416C, #FF8E53, #FFD200, #4ECDC4, #00C690);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite alternate;
    color: white;
}

a {
    color: white;
}

/* 移除邮箱边框，仅保留文字样式 */
.email-link {
    text-decoration: none;
    font-size: 2em;
}

.emoji {
    font-size: 5em;
    margin-top: 20px;
}

/* 定义动画关键帧 */
@keyframes gradient {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}