.top {
    position: fixed;
    margin: 0 auto;
    z-index: 1;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 45px;
    line-height: 45px;
    text-align: center;
    background-color: #F0F0F0;
    color: #000000;
}

.tophome {
    position: fixed;
    margin: 0 auto;
    z-index: 1;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 60px;
    line-height: 60px;
    text-align: center;
    background-color: #F0F0F0;
    color: #000000;
}

.topA1 {
    width: 35px;
    height: 35px;
    top: 2.5px;
    left: 3.8px;
    border-radius: 1px;
    position: fixed;
    margin: 1px auto;
    z-index: 2;
    border: 1px solid #f5f5f5;
    background-size: 35px 35px;
    background-repeat: no-repeat;
    background-image: url('../picture/Logo.svg');
}

.topA2 {
    top: 0px;
    border-radius: 1px;
    position: fixed;
    margin: 0.5px auto;
    z-index: 2;
    left: 48px;
    border: 1px solid #f5f5f5;
    height: 40px;
    line-height: 40px;
}

.topB1 {
    font-family: "行楷";
    font-size: 60%;
    top: 0px;
    border-radius: 1px;
    position: fixed;
    margin: 0 auto;
    z-index: 2;
    left: 188px;
    height: 40px;
    line-height: 40px;
    transition: all 0.2s linear; /* 动作持续2秒 */
}

    .topB1:hover {
        transform: scale(1.8); /* 
    放大1.8倍
    */
        transition: all 0.2s linear; /* 动作持续2秒 */
    }

.topB2 {
    font-family: "行楷";
    font-size: 60%;
    top: 0px;
    border-radius: 1px;
    position: fixed;
    margin: 0 auto;
    z-index: 2;
    left: 258px;
    height: 40px;
    line-height: 40px;
    transition: all 0.2s linear; /* 动作持续2秒 */
}

    .topB2:hover {
        transform: scale(1.8); /* 
    放大1.8倍
    */
        transition: all 0.2s linear; /* 动作持续2秒 */
    }

.topB3 {
    font-family: "行楷";
    font-size: 60%;
    top: 0px;
    border-radius: 1px;
    position: fixed;
    margin: 0 auto;
    z-index: 2;
    left: 328px;
    height: 40px;
    line-height: 40px;
    transition: all 0.2s linear; /* 动作持续2秒 */
}

    .topB3:hover {
        transform: scale(1.8); /* 
    放大1.8倍
    */
        transition: all 0.21s linear; /* 动作持续2秒 */
    }

.topB4 {
    font-family: "行楷";
    font-size: 60%;
    top: 0px;
    border-radius: 1px;
    position: fixed;
    margin: 0 auto;
    z-index: 2;
    left: 398px;
    height: 40px;
    line-height: 40px;
    transition: all 0.2s linear; /* 动作持续2秒 */
}

    .topB4:hover {
        transform: scale(1.8); /* 
    放大1.8倍
    */
        transition: all 0.21s linear; /* 动作持续2秒 */
    }

.topB5 {
    font-family: "行楷";
    font-size: 60%;
    top: 0px;
    border-radius: 1px;
    position: fixed;
    margin: 0 auto;
    z-index: 2;
    left: 468px;
    height: 40px;
    line-height: 40px;
    transition: all 0.2s linear; /* 动作持续2秒 */
}

    .topB5:hover {
        transform: scale(1.8); /* 
    放大1.8倍
    */
        transition: all 0.21s linear; /* 动作持续2秒 */
    }

.topC1 {
    font-family: "行楷";
    font-size: 60%;
    top: 0px;
    border-radius: 1px;
    position: fixed;
    margin: 0 auto;
    z-index: 2;
    /* left: 96%; */
    right: 10px;
    height: 40px;
    line-height: 40px;
    transition: all 0.2s linear; /* 动作持续2秒 */
}

    .topC1:hover {
        transform: scale(1.8); /* 
    放大1.8倍
    */
        transition: all 0.21s linear; /* 动作持续2秒 */
    }

    .topC2 {
        font-family: "行楷";
        font-size: 60%;
        top: 0px;
        border-radius: 1px;
        position: fixed;
        margin: 0 auto;
        z-index: 2;
        right: 80px;
        height: 40px;
        line-height: 40px;
        transition: all 0.2s linear; /* 动作持续2秒 */
    }
    
        .topC2:hover {
            transform: scale(1.8); /* 
        放大1.8倍
        */
            transition: all 0.21s linear; /* 动作持续2秒 */
        }

.topAnnounce {
    position: fixed;
    margin: 42px auto;
    z-index: 3;
    top: 0px;
    left: 0px;
    width: 100%;
}