.tool_a{
    max-width: 20rem;
    width: 100%;
    border: 1px solid #d7deea;
    padding: 0.75rem;
    margin: auto;
    border-radius: 3px;
}

.night .tool_a{
    border: 1px solid #374151;
}

.tool_a button{
    height: 1.8rem;
    line-height: 1.8rem;
    width: 100%;
    border: 1px solid #01a0e9;
    background-color: #01a0e9;
    color: #fff;
    border-radius: 3px;
}

.res{
    max-width: 20rem;
    width: 100%;
    margin: 1rem auto;
    border: 1px solid #a0e5c6;
    background: #f8fafe;
    border-radius: 3px;
    padding: 0.2rem 0.5rem;
    display: none;
}

.night .res{
    background-color: #0f1827;
    border: 1px solid #374151;
}

.res p{
    line-height: 0.8rem;
    font-size: 0.6rem;
    color: #1b362a;
    margin: 0.4rem 0;
}

.night .res p{
    color: #aaa;
}