@charset "utf-8";
select {
    text-align: center;
    text-align-last: center;
}


/* 头部logo */
.tb{
	height:300px;
    background:url(headbg.png) top center no-repeat;
    background-size: 100% 100%;
	position:relative;
	z-index:999
	}
.header{height:240px; margin:0 auto;}
.header .logo{ position: absolute;left: 50%;    margin-left: -220px;margin-top: 50px;}
.header .logo img{width:440px;}
.header ul{margin-top: 10px;position: absolute;    right: 50%;width: 415px;margin-right: 220px;}
.header ul li{float: left;margin-left:15px;height:26px;}
.header ul li:first-child{margin-left:0}
.header ul li a{font-size: 15px;color: #FFFFFF;}
.header ul li img{width:26px;height:26px;}
.header ul li a span{position: relative;top: -7px;}

/* 搜索 */
.header .search{position: absolute;left: 50%;margin-left: -190px;margin-top:170px;}



.search_text{ float:left; border:none; outline:none; width: 340px; height: 30px;background:none; line-height:30px; color:#fff; text-indent:10px;font-size:15px}
.search_sub{ float:left; width:30px; height:30px; border:none; background:url(cx.png) no-repeat left center; background-size:57%;color:#fff; cursor:pointer;}
.search input::input-placeholder{ color: #fff;font-size:15px}
.search input::input-placeholder{ color: #fff;font-size:15px}
.search input::-webkit-input-placeholder{ color: #fff;font-size:15px}
.search input::-moz-placeholder{ color: #fff;font-size:15px}
.search input:-moz-placeholder{ color: #fff;font-size:15px}
.search input:-ms-input-placeholder{ color: #fff;font-size:15px}




/* 导航 */
.nav{ width: 74%;margin:0 auto;height: 50px;background:#fff;border-radius:10px;margin-top: -55px}
.nav ul{width:100%;margin:0 5%}
.nav li{ float: left;width: 7%; padding:0 3%;height:50px;text-align:center; font-size: 17px; font-weight:bold;}
.nav li a{ display:block; width: 100%;margin-top:5px; height: 40px;line-height:40px;padding-right: 17%;}
.nav > ul > li > a:hover,
.nav > ul > li.current > a {
    color: #fff;
    background: url(nav_bg.png) center center no-repeat;
    background-size: 100% 100%;
}

/* 2. 排除下拉菜单项的背景 */
.dropdown-menu a {
    background: none !important;
    /* 其他子菜单特有样式 */
    padding: 8px 15px;
    color: #333;
}

/* 3. 可选：下拉菜单项悬停效果（独立样式） */
.dropdown-menu a:hover {
    color: #1d88ea;
    background-color: #f5f5f5 !important;
}

.nav {
    position: relative;
    z-index: 1000;
    width: 1270px !important;

}

.nav > ul > li {
    position: relative;
}


.dropdown-menu {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #f5f5f5;
    width: 120px; /* 从140px减小到120px */
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border: 1px solid #ddd;
    z-index: 10000;
    padding: 0;
    margin: 0;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.nav > ul > li:hover .dropdown-menu {
    /* 显示状态 */
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    display: block;
    width: 100%;
    margin: 0;
    padding: 0;
}

.dropdown-menu li a {
    display: block;
    height: 40px;
    line-height: 40px;
    padding: 0 10px; /* 内边距也相应减小 */
    color: #333;
    text-decoration: none;
    font-size: 14px;
    transition: background-color 0.2s;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    box-sizing: border-box;
    width: 100%;
}

.dropdown-menu li:hover a {
    background-color: #e8e8e8 !important;
    color: #333 !important;
}

.dropdown-menu li:last-child a {
    border-bottom: none;
}

.nav > ul > li > a::after {
    content: '';
    display: inline-block;
    margin-left: 5px;
    vertical-align: middle;
    border-top: 4px solid #fff;
    border-right: 4px solid transparent;
    border-left: 4px solid transparent;
    transition: transform 0.3s ease;
}
.nav > ul > li:hover > a::after {
    transform: rotate(180deg);
}



/* footer */
.footbg{background: url(footbg.png) center center no-repeat;background-size:100% 100%;height:300px}
/*底部*/
.bottom{height: 280px;background: #fff;opacity: 0.8;}
.bottom .btn-links{margin-top: 20px;height: 50px;background-color: #066fb1;text-align: center;line-height: 50px;}
.bottom .btn-links a{color:white;font-size: 14px}
.bottom .btn-links span{color:white;font-size: 14px;padding:0 15px}
.bottom .btn-info{    height: 103px;width: 746px;margin: 10px auto;}
.bottom .btn-info p.left{width: 296px}
.bottom .btn-info p{    float: left;color: #626262;line-height: 32px;font-size: 16px;padding-top: 10px;    width: 430px;}
/*.bottom .btn-info img{  margin-right: 20px;  width: 70px;height: 70px;float: left;margin-top:25px;}*/
/*底部链接*/
.line_com {position: relative;width: 1040px;margin: 0 auto;height: 35px;padding-top: 50px;}
.link2 {position: absolute;width: 100%;color: #000;color: #626262;}
.link2 b {float: left;height: 20px;line-height: 33px;font-size:17px;padding-right: 2px;}
.link2 select {float: left;width: 150px;height: 33px;line-height: 33px;margin-left:10px;border: 1px solid #D4D4D4;}