.border-red {
    border: 1px solid red;
    background-color: red;
}

.border-green {
    border: 1px solid green;
    background-color: green;
}

.border-black {
    border: 1px solid black;
}

.flex-center {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
}

.flex-left {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: left;
}

.flex-left {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: right;
}

.flex-middle {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.flex1 {
    flex: 1;
}

.s-w {
    width: 100%;
}

a {
    text-decoration: none;
}

.color-666 {
    color: #666;
}


/*媒体查询*/
.kl-sub-title {
    font-size: 3rem;
}

.p-sm {
    padding: 1rem;
}

.kl-fwlg-fs {
    font-size: 2rem;
}
.kl-fwlg-jiantou {
    max-width:4rem;
}
.kl-fs-baoming {
    font-size: 2.5rem;
}

@media (max-width: 768px) {
    .header-welcome {
        display: none;
    }

    .kl-logo {
        max-width: 100%;
    }

    .kl-sub-title {
        font-size: 2rem;
    }

    .kl-fwlg-fs {
        font-size: 1.25rem;
    }

    .kl-fwlg-jiantou {
        max-width: 2rem;
    }
    .kl-fs-baoming {
        font-size: 1.75rem;
    }
}