.flex {
    display: flex;
}

.flex-align-center {
    align-items: center;
}

.flex-justify-center {
    justify-content: center;
}

.flex-justify-between {
    justify-content: space-between;
}

.flex-justify-around {
    justify-content: space-around;
}

.color-black {
    color: #000;
}

.color-blue {
    color: #2C74FF;
}

.color-grey {
    color: #999999;
}

.color-lightGray {
    color: #DFDFDF;
}

.f-w-600 {
    font-weight: 600;
}

.f-w-800 {
    font-weight: 800;
}



#backTop {
    position: fixed;
    right: 10px;
    bottom: 40px;
    cursor: pointer;
    display: none;
    width: 70px;
    height: 70px;
}


.common-pc-show {
    display: block !important;
}

.common-phone-show {
    display: none !important;
}

.common-reason-title {
    padding: 20px 0;

}



.common-reason-title .name-box {
    text-align: center;
    position: relative;
}

.common-reason-title .name-box .code {
    font-family: Arial;
    /* 文字倾斜 */
    transform: skew(-12deg);
    font-weight: 700;
    font-size: 120px;
    text-align: center;
    color: #E9EAEE;
    width: fit-content;
    margin: 0 auto;
}

.common-reason-title .name-box .name {
    font-weight: 800;
    font-size: 42px;
    text-align: center;
    color: #000000;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.common-reason-title .name::before {
    content: "";
    display: block;
    width: 60px;
    height: 4px;
    border-radius: 2px;
    background-color: #2C74FF;
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);

}


.common-reason-subTitle {
    font-weight: 500;
    font-size: 28px;
    line-height: 1.5em;
    text-align: center;
    color: #000000;
    margin: 0 auto;
}

.common-sup{
    vertical-align: super;
}


@keyframes g-sideInUp {
    0% {
        transform: translateY(100%);
        /* transform: translateY(40px); */
        opacity: 0;
    }

    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

.g-sideInUp {
    /* animation: g-sideInUp 0.5s ease-in-out; */
    opacity: 0;
    animation-duration: 0.8s;
    animation-fill-mode: both;
    /* 匀速 */
    animation-timing-function: ease-in-out;
}

.g-sideInUp.animate {
    animation-name: g-sideInUp;
}

/* 版心 */
.wrapper {
    max-width: 1440px;
    margin: 0 auto;
}


/* 头部 */
.header {
    width: 100%;
    background-color: #ffffff;
    position: sticky;
    top: 0;
    left: 0;
    z-index: 100;
    padding: 15px 0;
}

.header.active {
    /* background-color: #4A53E6; */
    background-color: #ffffff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    transition: all 1s;
}

.header .wrapper {
    max-width: 1560px;
}

.header .header-content {
    display: flex;
    align-items: center;
}

.header .header-logo-box {
    display: flex;
    align-items: center;
}

.header .header-logo-box .logo {
    height: 80px;
    width: auto;
}

.header .nav-list {
    flex: 1;
    height: 80px;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    margin: 0 70px;
}

.header .nav-list .nav-item {
    text-align: center;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
    font-size: 16px;
    font-weight: 700;
}


.header .nav-list .nav-item::after {
    content: "";
    display: block;
    width: 0px;
    height: 3px;
    background-color: #2C74FF;
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    transition: all 0.3s ease;
    opacity: 0;
}

.header .nav-list .nav-item.active::after {
    width: 100%;
    opacity: 1;
}



/* 定义动画 */
@keyframes diagonalGradient {
    0% {
        background-position: 100% 100%;
    }

    100% {
        background-position: 0% 0%;
    }
}


.header .head-tel {
    font-size: 18px;
    line-height: 52px;
    color: #ffffff;
    height: 52px;
    padding: 0 30px;
    border-radius: 26px;
    /* background-color: #FF7700; */
    cursor: pointer;
    font-weight: 700;

    background-image: linear-gradient(60deg, #FF7700, #FF7700 45%, #ff9c46 50%, #FF7700 55%, #FF7700 100%);
    animation: diagonalGradient 1s infinite linear;
    transition: all 0.3s ease;
    background-size: 220% 100%;
    background-position: 0% 0%;
}

/* 底部 */
.footer {
    background-color: #F3F5F7;
    padding: 30px 0;
}

.footer .copyright-box {
    font-size: 14px;
    color: #666666;
    padding: 0 15px;
    text-align: center;
    border-top: 1px solid #FFFFFF33;
}



/* 屏幕小于 1560px */
@media screen and (max-width: 1560px) {

    .wrapper {
        max-width: 1375px;
    }

    .header .wrapper {
        max-width: 1375px;
    }

}



/* 屏幕小于 1375px */
@media screen and (max-width: 1375px) {
    .wrapper {
        max-width: 728px;
    }

    .header .wrapper {
        max-width: 728px;
    }

    .header .header-content {
        justify-content: space-between;
    }

    .header .nav-list {
        display: none;
    }
}


/* 手机 版心 */
@media screen and (max-width: 768px) {

    .common-pc-show {
        display: none !important;
    }

    .common-phone-show {
        display: block !important;
    }

    .wrapper {
        max-width: 414px;
        padding-left: 16px;
        padding-right: 16px;
    }

    .common-reason-title .name-box .code {
        font-size: 60px;
    }

    .common-reason-title .name-box .name {
        width: 100%;
        font-size: 30px;
    }



    .header {
        padding: 3px 0;
    }

    .header .wrapper {
        width: 100%;
        box-sizing: border-box;
        padding-left: 16px;
        padding-right: 16px;
    }

    .header .header-logo-box .logo {
        height: 54px;
    }

    .header .head-tel {
        font-size: 14px;
        height: 36px;
        line-height: 36px;
        padding: 0 27px;
        border-radius: 18px;
    }

    .footer .copyright-box {
        color: #999999;
        font-size: 12px;
        line-height: 1.7em;
    }


    #backTop {
        width: 50px;
        height: 50px;
    }

}