/*当页面大于1200px 时，大屏幕，主要是PC 端*/
/*在992 和1199 像素之间的屏幕里，中等屏幕，分辨率低的PC*/
/*在768 和991 像素之间的屏幕里，小屏幕，主要是PAD*/
/*在480 和767 像素之间的屏幕里，超小屏幕，主要是手机*/
@media (min-width: 480px) and (max-width: 767px) {
  body {
    background: #e5e5e5;
  }
  img {
    border: 0;
    display: block;
    width: 100%;
  }
  .nav {
    line-height: 30px;
    height: 30px;
  }
  .nav p {
    display: none;
  }
  .nav span {
    display: block;
  }
  #footer {
    margin-top: 10px;
    padding: 2px 0;
  }
  #footer p {
    display: none;
  }
  #footer span {
    display: block;
  }
  .bg01 {
    display: none;
  }
  .bg01r {
    display: block;
  }
  .toptit {
    width: 100%;
    height: 30px;
    background: url(../images/title_01.jpg) no-repeat center;
    background-size: 100% 100%;
  }
  .toptit i {
    display: none;
  }
  .toptit div {
    width: 100%;
  }
  .toptit div a {
    margin: 0;
    padding: 0 10px;
    line-height: 30px;
    font-size: 14px;
  }
  .hg {
    height: 30px;
  }
  .about {
    width: 100%;
    padding-top: 15px;
  }
  .about .aboutleft {
    float: left;
    width: 96%;
    margin: 0 2%;
    height: auto;
    background: url(../images/title_02.png) no-repeat;
    background-size: 100% 100%;
  }
  .about .aboutleft h3 {
    background: url(../images/title_04.png) no-repeat bottom left;
    margin: 10px;
    padding: 0 0 5px 5px;
    font-size: 14px;
    letter-spacing: 0px;
  }
  .about .aboutleft p {
    margin: 0 10px;
    padding: 0 0 0 5px;
    font-size: 12px;
    line-height: 18px;
  }
  .about .aboutleft .img {
    margin: 10px 10px 15px 10px;
  }
  .about .aboutright {
    float: right;
    width: 96%;
    height: auto;
    margin: 2% 2% 0 2%;
    background: url(../images/title_03.png) no-repeat center top;
    background-size: cover;
  }
  .about .aboutright p {
    padding: 25% 8% 3% 8%;
    font-size: 14px;
    line-height: 24px;
  }
  .ermain {
    width: 96%;
    margin: 0 2%;
  }
  .ermain h3 {
    background: url(../images/title_01.jpg) no-repeat center;
    background-size: 100% 100%;
    height: 30px;
    line-height: 30px;
    font-size: 18px;
    margin-top: 15px;
  }
  .ermain .ermainleft {
    float: left;
    width: 100%;
  }
  .ermain .ermainleft li {
    font-size: 12px;
    letter-spacing: 0px;
    line-height: 20px;
    margin-top: 5px;
  }
  .ermain .ermainright {
    float: right;
    width: 100%;
  }
  .ermain .ermainright ul {
    margin-top: 5px;
    padding-bottom: 10px;
  }
  .ermain .ermainright ul li {
    width: 100%;
    padding: 10px 10px 0 10px;
  }
  .ermain .ermainright ul li .img {
    float: left;
    width: 33%;
    padding-right: 5%;
  }
  .ermain .ermainright ul li p {
    width: 58%;
    font-size: 12px;
    line-height: 18px;
  }
  .ermain .ermainright ul li p h4 {
    padding: 0 0 10px 0;
    font-size: 14px;
  }
  .news {
    width: 96%;
    margin: 0 2%;
  }
  .news h3 {
    background: url(../images/title_01.jpg) no-repeat center;
    background-size: 100% 100%;
    height: 30px;
    line-height: 30px;
    font-size: 18px;
    margin-top: 15px;
  }
  .news .newsleft {
    float: left;
    width: 100%;
  }
  .news .newsleft .newstit {
    width: 24px;
    margin-right: 6px;
  }
  .news .newsleft .newsleft-box {
    margin-top: 10px;
    padding-bottom: 15px;
    width: 100%;
  }
  .news .newsleft .newsleft-box .list01 {
    margin: 2% 3% 0 3%;
    width: 94%;
    float: left;
  }
  .news .newsleft .newsleft-box .list01 li {
    margin-top: 12px;
    width: 100%;
  }
  .news .newsleft .newsleft-box .list01 li .img {
    width: 70%;
    margin: 0 15%;
  }
  .news .newsleft .newsleft-box .list01 li dl {
    width: 90%;
    margin: 3% 5% 0 5%;
  }
  .news .newsleft .newsleft-box .list01 li dl dt {
    font-size: 14px;
    line-height: 20px;
    text-align: center;
  }
  .news .newsleft .newsleft-box .list01 li dl dd {
    font-size: 12px;
    line-height: 18px;
    padding-top: 2%;
  }
  .news .newsleft .newsleft-box .list02 {
    float: left;
    width: 94%;
    padding: 5% 0 0 5%;
  }
  .news .newsleft .newsleft-box .list02 li {
    float: left;
    width: 100%;
    font-size: 14px;
    line-height: 24px;
    text-indent: 0px;
    padding-left: 14px;
    background: url(../images/title_06.png) 0px 9px no-repeat;
  }
  .news .newsright {
    width: 100%;
  }
  .news .newsright .newsright-box {
    margin-top: 10px;
    padding: 15px 0 10px 0;
    width: 100%;
  }
  .news .newsright .newsright-box .vid {
    float: left;
    width: 100%;
    margin-top: 4px;
  }
  .news .newsright .newsright-box .vid h4 {
    font-size: 14px;
    padding: 5px 0 0 0;
  }
  .titbits {
    width: 96%;
    margin: 0 2%;
  }
  .titbits h3 {
    background: url(../images/title_01.jpg) no-repeat center;
    background-size: 100% 100%;
    height: 30px;
    line-height: 30px;
    font-size: 18px;
    margin-top: 15px;
  }
  .titbits .swiper-container {
    margin-top: 5px;
  }
  .retrospect {
    width: 96%;
    margin: 0 2%;
  }
  .retrospect h3 {
    background: url(../images/title_01.jpg) no-repeat center;
    background-size: 100% 100%;
    height: 30px;
    line-height: 30px;
    font-size: 18px;
    margin-top: 15px;
  }
  .retrospect .retrospect-box {
    margin-top: 5px;
  }
  .retrospect .retrospect-box ul {
    padding: 1% 5%;
  }
  .retrospect .retrospect-box ul li {
    width: 100%;
    padding: 2% 0 0 0;
  }
  .retrospect .retrospect-box ul li h4 {
    padding: 5px 0 0 0;
    font-size: 14px;
  }
}
/*在小于480 像素的屏幕，微小屏幕，更低分辨率的手机*/
@media (max-width: 479px) {
  body {
    background: #e5e5e5;
  }
  img {
    border: 0;
    display: block;
    width: 100%;
  }
  .nav {
    line-height: 30px;
    height: 30px;
  }
  .nav p {
    display: none;
  }
  .nav span {
    display: block;
  }
  #footer {
    margin-top: 10px;
    padding: 2px 0;
  }
  #footer p {
    display: none;
  }
  #footer span {
    display: block;
  }
  .bg01 {
    display: none;
  }
  .bg01r {
    display: block;
  }
  .toptit {
    width: 100%;
    height: 30px;
    background: url(../images/title_01.jpg) no-repeat center;
    background-size: 100% 100%;
  }
  .toptit i {
    display: none;
  }
  .toptit div {
    width: 100%;
  }
  .toptit div a {
    margin: 0;
    padding: 0 10px;
    line-height: 30px;
    font-size: 14px;
  }
  .hg {
    height: 30px;
  }
  .about {
    width: 100%;
    padding-top: 15px;
  }
  .about .aboutleft {
    float: left;
    width: 96%;
    margin: 0 2%;
    height: auto;
    background: url(../images/title_02.png) no-repeat;
    background-size: 100% 100%;
  }
  .about .aboutleft h3 {
    background: url(../images/title_04.png) no-repeat bottom left;
    margin: 10px;
    padding: 0 0 5px 5px;
    font-size: 14px;
    letter-spacing: 0px;
  }
  .about .aboutleft p {
    margin: 0 10px;
    padding: 0 0 0 5px;
    font-size: 12px;
    line-height: 18px;
  }
  .about .aboutleft .img {
    margin: 10px 10px 15px 10px;
  }
  .about .aboutright {
    float: right;
    width: 96%;
    height: auto;
    margin: 2% 2% 0 2%;
    background: url(../images/title_03.png) no-repeat center top;
    background-size: cover;
  }
  .about .aboutright p {
    padding: 25% 8% 3% 8%;
    font-size: 14px;
    line-height: 24px;
  }
  .ermain {
    width: 96%;
    margin: 0 2%;
  }
  .ermain h3 {
    background: url(../images/title_01.jpg) no-repeat center;
    background-size: 100% 100%;
    height: 30px;
    line-height: 30px;
    font-size: 18px;
    margin-top: 15px;
  }
  .ermain .ermainleft {
    float: left;
    width: 100%;
  }
  .ermain .ermainleft li {
    font-size: 12px;
    letter-spacing: 0px;
    line-height: 20px;
    margin-top: 5px;
  }
  .ermain .ermainright {
    float: right;
    width: 100%;
  }
  .ermain .ermainright ul {
    margin-top: 5px;
    padding-bottom: 10px;
  }
  .ermain .ermainright ul li {
    width: 100%;
    padding: 10px 10px 0 10px;
  }
  .ermain .ermainright ul li .img {
    float: left;
    width: 33%;
    padding-right: 5%;
  }
  .ermain .ermainright ul li p {
    width: 58%;
    font-size: 12px;
    line-height: 18px;
  }
  .ermain .ermainright ul li p h4 {
    padding: 0 0 10px 0;
    font-size: 14px;
  }
  .news {
    width: 96%;
    margin: 0 2%;
  }
  .news h3 {
    background: url(../images/title_01.jpg) no-repeat center;
    background-size: 100% 100%;
    height: 30px;
    line-height: 30px;
    font-size: 18px;
    margin-top: 15px;
  }
  .news .newsleft {
    float: left;
    width: 100%;
  }
  .news .newsleft .newstit {
    width: 24px;
    margin-right: 6px;
  }
  .news .newsleft .newsleft-box {
    margin-top: 10px;
    padding-bottom: 15px;
    width: 100%;
  }
  .news .newsleft .newsleft-box .list01 {
    margin: 2% 3% 0 3%;
    width: 94%;
    float: left;
  }
  .news .newsleft .newsleft-box .list01 li {
    margin-top: 12px;
    width: 100%;
  }
  .news .newsleft .newsleft-box .list01 li .img {
    width: 70%;
    margin: 0 15%;
  }
  .news .newsleft .newsleft-box .list01 li dl {
    width: 90%;
    margin: 3% 5% 0 5%;
  }
  .news .newsleft .newsleft-box .list01 li dl dt {
    font-size: 14px;
    line-height: 20px;
    text-align: center;
  }
  .news .newsleft .newsleft-box .list01 li dl dd {
    font-size: 12px;
    line-height: 18px;
    padding-top: 2%;
  }
  .news .newsleft .newsleft-box .list02 {
    float: left;
    width: 94%;
    padding: 5% 0 0 5%;
  }
  .news .newsleft .newsleft-box .list02 li {
    float: left;
    width: 100%;
    font-size: 14px;
    line-height: 24px;
    text-indent: 0px;
    padding-left: 14px;
    background: url(../images/title_06.png) 0px 9px no-repeat;
  }
  .news .newsright {
    width: 100%;
  }
  .news .newsright .newsright-box {
    margin-top: 10px;
    padding: 15px 0 10px 0;
    width: 100%;
  }
  .news .newsright .newsright-box .vid {
    float: left;
    width: 100%;
    margin-top: 4px;
  }
  .news .newsright .newsright-box .vid h4 {
    font-size: 14px;
    padding: 5px 0 0 0;
  }
  .titbits {
    width: 96%;
    margin: 0 2%;
  }
  .titbits h3 {
    background: url(../images/title_01.jpg) no-repeat center;
    background-size: 100% 100%;
    height: 30px;
    line-height: 30px;
    font-size: 18px;
    margin-top: 15px;
  }
  .titbits .swiper-container {
    margin-top: 5px;
  }
  .retrospect {
    width: 96%;
    margin: 0 2%;
  }
  .retrospect h3 {
    background: url(../images/title_01.jpg) no-repeat center;
    background-size: 100% 100%;
    height: 30px;
    line-height: 30px;
    font-size: 18px;
    margin-top: 15px;
  }
  .retrospect .retrospect-box {
    margin-top: 5px;
  }
  .retrospect .retrospect-box ul {
    padding: 1% 5%;
  }
  .retrospect .retrospect-box ul li {
    width: 100%;
    padding: 2% 0 0 0;
  }
  .retrospect .retrospect-box ul li h4 {
    padding: 5px 0 0 0;
    font-size: 14px;
  }
  .contact {
    width: 96%;
    margin: 0 2%;
  }
  .contact h3 {
    background: url(../images/title_01.jpg) no-repeat center;
    background-size: 100% 100%;
    height: 30px;
    line-height: 30px;
    font-size: 18px;
    margin-top: 15px;
  }
  .contact .contact-box {
    margin-top: 5px;
    padding: 2%;
  }
  .contact .contact-box .contactleft {
    float: left;
    width: 50%;
    margin: 5% 25% 0;
  }
  .contact .contact-box .contactright {
    width: 96%;
    margin: 0 2%;
  }
  .contact .contact-box .contactright p {
    float: left;
    width: 96%;
    padding: 2%;
    font-size: 14px;
    line-height: 24px;
  }
  .contact .contact-box .contactright p span {
    width: 220px;
    line-height: 24px;
    font-size: 12px;
  }
  .contact .contact-box .contactright div {
    float: left;
    width: 96%;
    margin: 0 2%;
  }
}