@media screen and (max-width:1360px) {
  .container,.container-min,.container-max {
    padding: 0 20px;
    box-sizing: border-box;
  }
  .container {
    width: 900px;
  }
  .container-min {
    width: 860px;
  }
  .container-max {
    width: 1000px;
  }
  .intro-box {
    margin-top: 60px;
  }
  .videobox {
    width: 420px;
    height: 240px;
  }
  .left-video::after {
    width: 440px;
    height: 260px;
    left: -20px;
    bottom: -20px;
  }
  .intro-ico {
    width: 40px;
    height: 40px;
    object-fit: contain;
    top: -40px;
    right: 0;
  }
  .intro-info {
    width: 500px;
  }
  .intro-info p {
    font-size: 14px;
    line-height: 1.8em;
  }
  .intro-info h3 {
    font-size: 16px;
    padding: 10px 0 14px;
  }
  .intro-info h2 {
    font-size: 28px;
    padding-top: 4px;
  }
  .p-item {
    margin: 0 27px;
    margin-top: 30px;
  }
  .logo-text {
    padding-left: 20px;
    margin-left: 20px;
  }
  .logo-text h1 {
    font-size: 20px;
  }
  .logo-text span {
    font-size: 14px;
    padding: 0 20px;
    height: 32px;
    line-height: 32px;
    margin-top: 10px;
  }
  .logo-img {
    width: 100px;
    height: 80px;
    object-fit: contain;
  }
  .contact-phone strong {
    font-size: 36px;
  }
  .contact-phone span {
    font-size: 16px;
    padding: 4px 0 12px;
  }
  .header {
    height: auto;
  }
  .footer {
    position: relative;
    padding-bottom: 30px;
  }
  .footer .container {
    position: relative;
  }
  .footer strong {
    width: 100%;
    padding: 0;
  }
  .textinfo {
    width: 100%;
    padding-left: 0;
    margin-left: 0;
    margin-top: 10px;
    padding-top: 10px;
  }
  .textinfo::after {
    height: 1px;
    width: 480px;
    top: 0;
    left: 0;
    transform: translateX(0);
  }
  .chat-box {
    position: absolute;
    right: 0;
    bottom: 0;
    margin: 0;
    z-index: 3;
  }
  .left-nav {
    width: 100%;
    text-align: center;
    border-bottom: 1px solid #eee;
  }
  .n-ain {
    float: none;
    display: inline-block;
    border: 0;
    height: auto;
  }
  .n-ain a {
    margin: 0;
    padding: 16px;
  }
  .n-ain a::before {
    margin-right: 10px;
  }
  .left-info {
    width: 100%;
    text-align: center;
  }
  .right-chat {
    width: 100%;
    padding: 0;
    text-align: center;
    margin-top: 30px;
  }
}
@media screen and (max-width: 1000px) {
  .left-video {
    width: 100%;
  }
  .videobox {
    width: 100%;
    height: auto;
    max-height: 600px;
  }
  .intro-info {
    width: 100%;
    padding: 0;
    margin-top: 60px;
  }
  .intro-info h2 {
    font-size: 36px;
  }
  .intro-info h3 {
    font-size: 24px;
  }
  .intro-info p {
    font-size: 20px;
  }
  .banner-img {
    height: 550px;
    background-size: auto 550px;
  }
  .swiper-banner {
    height: 578px;
  }
  .chat-box {
    right: 20px;
  }
}
@media screen and (max-width: 900px) {
  .container,
  .container-min,
  .container-max {
    width: 768px;
  }
  .banner-nav a {
    margin: 0 50px;
  }
  .p-list {
    margin: 0 -14px;
  }
  .p-item {
    margin: 20px 14px 0;
    width: 222px;
  }
  .p-item .pimg {
    height: 198px;
  }
  .logo-text h1 {
    font-size: 14px;
  }
  .logo-text span {
    font-size: 12px;
    padding: 0 10px;
    height: 28px;
    line-height: 28px;
  }
  .logo-img {
    width: 80px;
    height: 60px;
  }
  .contact-phone strong {
    font-size: 24px;
  }
  .n-ain a {
    font-size: 18px;
  }
  .right-list {
    width: 100%;
  }
  .right-list .p-list {
    margin: 0 -14px;
  }
  .right-list .p-item {
    margin: 20px 14px 0;
    width: 222px;
  }
  .banner-img {
    height: 450px;
    background-size: auto 450px;
  }
  .swiper-banner {
    height: 478px;
  }
  .intro-info h2 {
    font-size: 32px;
  }
  .intro-info h3 {
    font-size: 20px;
  }
  .intro-info p {
    font-size: 16px;
  }
  .p-title h2 {
    font-size: 36px;
  }
  .p-title h3 {
    font-size: 32px;
  }
  .footer strong {
    font-size: 24px;
  }
  .textinfo p {
    font-size: 16px;
  }
  .textinfo::after {
    width: 100px;
  }
  .ntitle {
    height: auto;
    padding: 10px 0;
  }
  .ntitle h2 {
    font-size: 20px;
  }
  .ntitle img {
    width: 16px;
  }
  .swiper-maxbox h5 {
    font-size: 24px;
  }
  .swiper-maxbox .simg {
    width: 300px;
    height: 260px;
  }
  .swiper-maxbox {
    height: 340px;
  }
  .thumb-list .sli-img,
  .thumb-list .swiper-slide {
    height: 70px;
  }
  .thumb-list {
    height: auto;
  }
  .info-box h3  {
    font-size: 20px;
    padding: 6px 0;
    margin-top: 16px;
  }
  .info-box p {
    font-size: 14px;
    line-height: 2em;
  }
  .info-box {
    padding-bottom: 50px;
  }
}
@media screen and (max-width:768px) {
  .container,
  .container-min,
  .container-max {
    width: 558px;
  }
  .logo-text {
    padding-left: 14px;
    margin-left: 14px;
  }
  .logo-text h1 {
    font-size: 12px;
  }
  .banner-nav {
    justify-content: space-around;
    display: flex;
  }
  .banner-nav a {
    font-size: 16px;
    margin: 0;
  }
  .banner-img {
    height: 250px;
    background-size: auto 250px;
  }
  .swiper-banner {
    height: 278px;
  }
  .intro-info h2 {
    font-size: 24px;
  }
  .intro-info h3 {
    font-size: 16px;
  }
  .intro-info p {
    font-size: 13px;
  }
  .p-title h2 {
    font-size: 32px;
  }
  .p-title h3 {
    font-size: 24px;
  }
  .p-item {
    width: 160px;
    height: 200px;
    margin: 16px 10px 0;
  }
  .p-item .pimg {
    height: 150px;
  }
  .p-info {
    height: 50px;
  }
  .p-info h3 {
    font-size: 13px;
  }
  .footer strong {
    font-size: 20px;
  }
  .textinfo p {
    font-size: 14px;
  }
  .chat-box .chatimg {
    width: 90px;
    height: 90px;
  }
  .chat-box span {
    font-size: 13px;
  }
  .n-ain a {
    padding: 12px 6px;
    font-size: 14px;
  }
  .n-ain a::before {
    width: 10px;
    height: 10px;
  }
  .right-list .p-item {
    width: 152px;
  }
  .left-info h1 {
    font-size: 24px;
  }
  .left-info p,
  .right-chat p {
    font-size: 16px;
  }
  .cimg {
    width: 160px;
    height: 160px;
  }
  .map-box {
    height: 300px;
  }
  .top-info {
    padding: 30px 0;
  }
  .left-video::after {
    display: none;
  }
}
@media screen and (max-width:568px) {
  .logo-box {
    width: 100%;
  }
  .contact-phone {
    width: 100%;
    margin-top: 20px;
  }
  .contact-phone span,
  .contact-phone strong {
    text-align: center;
  }
  .thumb-list {
    padding: 10px 20px;
  }
  .thumb-list .sli-img, .thumb-list .swiper-slide {
    height: 50px;
  }
  .swiper-button-next, .swiper-button-prev {
    width: 12px;
    height: 28px;
    margin-top: -14px;
  }
  .swiper-maxbox .simg {
    width: 240px;
    height: 200px;
  }
  .swiper-maxbox {
    height: 260px;
  }
  .swiper-maxbox h5 {
    font-size: 18px;
  }
  .info-box h3 {
    font-size: 16px;
    margin-top: 10px;
  }
  .info-box p {
    font-size: 13px;
  }
  .left-info h1 {
    font-size: 20px;
  }
  .intro-info h2 {
    font-size: 20px;
  }
  .product-list {
    margin-top: 50px;
  }
  .footer strong {
    font-size: 16px;
  }
  .textinfo p {
    font-size: 13px;
  }
  .chat-box {
    right: 10px;
    width: 70px;
  }
  .chat-box .chatimg {
    width: 60px;
    height: 60px;
  }
  .chat-box span {
    font-size: 12px;
  }
  .textinfo {
    max-width: 76%;
  }
}