.main-topstyle {
    width: 100%;
    background: #272727;
    position: fixed;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    min-width: 1900px;
    height: 91px;
    max-width: 2000px;
    margin: 0 auto;
    min-width: 1900px;
}

.main-topstyle table {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    border-collapse: collapse;
}

.main-topstyle td {
    vertical-align: middle;
}

.main-topstyle ul {
   display: flex;
   text-align: center;
   align-items: center;
   list-style-type: none;
   padding: 0;
}
.main-topstyle ul li {
    display: flex;
    align-items: center;
    margin-right: 20px;
}
.main-topstyle ul a {
    display: flex;
    flex-direction: column;
}
.main-topstyle ul a:hover {
    margin-top: -5px;
}
.main-topstyle .icon {
    color:#797a7a;
    margin-right: 10px;
    font-size: 12px;
}
.main-topstyle a {
    text-decoration: none;
    color: #4f4f4f;
    transition: color 0.3s;
    font-size: 18px;
    margin: 0 10px;
}

.main-topstyle a:hover {
    color: #1890ff;
    margin-top: -5px;
}

.main-topstyle img {
    max-height: 80px;
    width: auto;
}