body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    font-family: 微软雅黑, Arial, sans-serif;
}

#container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 1080px;
    height: 100%;
    margin: 0 auto;
    box-sizing: border-box;
}

.header {
    width: 100%;
    height: 10px;
    background-color: #065586;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
}

.logo-bar {
    display: flex;
    width: 100%;
    height: 100px;
    position: fixed;
    top: 10px;
    left: 0;
    z-index: 100;
    background-color: #fff;
}

.logo {
    flex: 0 0 250px;
    display: flex;
    align-items: center;
}

.empty-area {
    flex: 1;
}

.empty-line {
    margin-top: 15px;
}


.content {
    width: 100%;
    display: flex;
    justify-content: center;
    position: fixed;
    top: 110px;
    bottom: 40px;
    overflow-y: auto;
}

footer {
    width: 100%;
    height: 40px;
    background-color: #065586;
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: 100;
}

footer div {
    font-family: 微软雅黑, Arial, sans-serif;
    font-size: 9px;
    color: #ffffff;
    text-indent: 0em;
    line-height: 40px;
    height: 40px;
}

@media (orientation: portrait) {
    #container {
        width: 100%;
        height: 100%;
    }
    .content {
        flex-grow: 1;
    }
}

.menu-container {
    position: relative;
    display: flex;
    float: right;
    margin-right: 10px;
    align-items: center;
}

.menu-btn {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    padding: 0 10px;
    color: #333;
}

.menu-content {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
    right: 0;
    top: 100%;
}

.menu-content a {
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
}

.menu-content a:hover {
    background-color: #f1f1f1;
}

.menu-container:hover .menu-content {
    display: block;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 400px;
}

.modal-content button {
    padding: 10px;
    margin: 5px;
    cursor: pointer;
}