img {
    border: 0px;
}
body {
    margin: 0 auto;
    text-align: center;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}#container {
    text-align: left;
    margin: 0 auto;
    width: 100%;
    overflow: hidden;
}
form {
    margin: 0px;
}#nav li {
    width: 80px;
}#head {
    width: 100%;
}#top {
    width: 100%;
    height: 90px;
    overflow: hidden;
    background: url(style_res/top.jpg) no-repeat center center;
}#banner {
    width: 100% ;
    height: 90px;
    overflow: hidden;
    background: url(style_res/banner.gif) no-repeat center center;
}#nav {
    font-family: "微软雅黑";
    width: 100%;
    height: 50px;
    display: flex;
    justify-content: center;
    background-color: #CC0000;
}#nav ul {
    margin: 0px;
    padding: 0px;
    display: flex;
}
#nav ul li {
    list-style: none;
    display: flex;
    justify-content: center;
    align-items: center;
}
#nav ul li a {
    text-decoration: none;
    font-weight: bold;
    font-size: 17px;
    color: #ddd;
}
.first {
    background-color: #F00000;
    color: #555;
}
#nav form {
    display: flex;
    justify-content: center;
    align-items: center;
}
#nav form input {
    border: none;
    outline: none;
    height: 28px;
    border-top-left-radius: 4px;
    border-bottom-left-radius: 4px;
    text-indent: 3px;
    margin-left: 4px;
}

#nav form button {
    height: 28px;
    outline: none;
    border: none;
    padding: 0 5px;
    cursor: pointer;
    background-color: #d9534f;
    color: #fff;
}

#main_content {
    margin: 0 auto;
    max-width: 1003px;
}

footer {
    width: 100%;
    display: flex;
    flex-direction: column;
    background-color: #aa0000;
    text-align: center;
    color: #aaa;
    font-size: 14px;
}

#more {
    float: right;
    text-align: right;
    width: 270px;
}
#more a {
    color: red;
}.tag {
    float: left;
    background: url(style_res/tag.gif) no-repeat;
    width: 10px;
    height: 10px;
    margin-right: 3px;
}

.latest .list-group a {
    display: block;
    padding: 10px 15px;
    border: 1px solid #ddd;
    color: #555;
}