button {
    background: #b3e0ff; /* 柔和的淡蓝底色 */
    color: #2a6fa7; /* 深蓝色文字 */
    padding: 8px 16px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 3px 4px rgba(143, 186, 255, 0.2);
    position: relative;
    overflow: hidden;
    width: 100px;
    margin-bottom: 20px;
}
button:hover {
    background: #9bd0ff; /* 悬停加深蓝色 */
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(143, 186, 255, 0.3);
}

button:active {
    transform: translateY(1px);
    box-shadow: 0 2px 4px rgba(143, 186, 255, 0.2);
}

button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(255,255,255,0.3),
        transparent
    );
    transition: left 0.5s;
}

button:hover::before {
    left: 100%;
}