.bannerSwiper .swiper-button-prev:after,
.bannerSwiper .swiper-button-next:after {
  color: #1171be;
  font-size: 36px;
}

.bannerSwiper .swiper-button-next {
  right: 30px;
}

.bannerSwiper .swiper-button-prev {
  left: 30px;
}

.bannerSwiper .swiper-pagination {
  bottom: 20px;
}

.bannerSwiper .swiper-pagination-bullet {
  background: rgba(255, 255, 255, .8);
  opacity: 1;
  width: 14px;
  height: 14px;
}

.bannerSwiper .swiper-pagination-bullet-active {
  background-color: #1171be;
}

.sec1 ul {
  padding: 40px 0 0;
}

.sec1 ul li {
  width: 25%;
  float: left;
  text-align: center;
  border-right: 1px solid #efefef;
  box-sizing: border-box;
}

.sec1 ul li:last-child {
  border-right: none;
}

.sec1 ul li b {
  display: block;
  width: 40px;
  line-height: 40px;
  margin: 0 auto;
}

.sec1 ul li h3 {
  margin: 8px 0;
  font-size: 20px;
}

.sec1 ul li p {
  color: #999;
}

.sec2 .ul1 {
  text-align: center;
  overflow: hidden;
  padding: 20px 10%;
}

.sec2 .ul1 li {
  width: 33.33%;
  float: left;
  padding: 0 10px 0 20px;
  box-sizing: border-box;
}

.sec2 .ul1 li a {
  display: block;
  padding: 30px 20px 30px 75px;
  border-radius: 8px;
  border: 1px solid #efefef;
  position: relative;
  text-align: left;
}

.sec2 .ul1 li a b {
  display: block;
  width: 40px;
  height: 40px;
  background: url(../images/icon5.png) no-repeat center top;
  background-size: 40px;
  overflow: hidden;
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
}

.sec2 .ul1 li:nth-child(2) a b {
  background-image: url(../images/icon6.png);
}

.sec2 .ul1 li:nth-child(3) a b {
  background-image: url(../images/icon7.png);
}

.sec2 .ul1 li a h3 {
  font-size: 19px;
  font-weight: 500;
}

.sec2 .ul1 li a span {
  display: block;
  color: #999;
  font-size: 15px;
  white-space: nowrap;
}

.sec2 .ul1 li.on a {
  background: #1171be;
  padding: 30px 20px 30px 75px;
}

.sec2 .ul1 li.on a h3,
.sec2 .ul1 li.on a span {
  color: #fff;
}

.sec2 .ul1 li.on a h3 {
  font-weight: 600;
}

.sec2 .ul1 li.on a b {
  background-position: bottom center;
}

.sec2 .box .ul2 li {
  width: 25%;
  float: left;
  padding: 20px 15px 0;
  box-sizing: border-box;
}

.sec2 .box .ul2 li .pho {
  background: url(../images/bg1.png) no-repeat bottom center;
  background-size: cover;
}

.sec2 .box .ul2 li h3 {
  font-size: 18px;
  padding: 10px 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
}

.sec2 .box .ul2 li a {
  display: block;
  overflow: hidden;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, .1);
}

.sec2 .box .ul2 li:hover h3 {
	color:#1171be
}

/* 解决方案 */
.sec3 {
  background: #f4faff;
  padding-bottom: 40px;
  margin-top: 40px;
}

.sec3 .box {
  width: 31.33%;
  float: left;
  padding: 20px 30px;
  box-sizing: border-box;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 0 10px rgba(0, 0, 0, .18);
}

.sec3 .box:nth-child(2) {
  /* border-left: 1px solid #efefef;
	border-right: 1px solid #efefef; */
  margin: 0 3%;
}

.sec3 .box .top {
  position: relative;
}

.sec3 .box .top strong {
  display: block;
  position: absolute;
  right: 0px;
  top: -20px;
  font-size: 42px;
  opacity: 0.08;
  color: #1171be;
}

.sec3 .box .top h3 {
  font-size: 22px;
}

.sec3 .box .top span {
  color: #999;
  font-size: 14px;
  display: block;
  margin: 5px 0 10px;
  text-transform: uppercase;
}

.sec3 .box .top b {
  display: block;
  width: 34px;
  height: 3px;
  background: #1171be;
  border-radius: 2px;
}

.sec3 .box .pho {
  overflow: hidden;
  margin: 12px 0;
  border-radius: 4px;
}

.sec3 .box .text p {
  font-size: 14px;
  color: #999;
  color: #1171be;
}

.sec3 .box li a {
  display: block;
  border-bottom: 1px solid #efefef;
  padding-right: 30px;
  background: url(../images/jt4.png) no-repeat right center;
  background-size: 20px;
  line-height: 40px;
  font-size: 16px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}


.sec3 .box li:hover a {
  color: #1171be;
  background-image: url(../images/jt3.png);
}

.sec3 .box .text .mor {
  margin-top: 20px;
}

.sec3 .box .text .mor a {
  display: block;
  color: #1171be;
  font-size: 14px;
  text-align: right;
}

.sec3 .box .text .mor a img {
  width: 18px;
}


/* 关于我们 */

.sec4 {
  margin-top: 40px;
}

.sec4 .pho {
  width: 42%;
  position: relative;
}

.sec4 .pho img {
  border-radius: 10px;
  width: 98%;
  margin-top: 20px;
  margin-left: 2%;
}

.sec4 .pho .tex {
  width: 100px;
  padding: 20px;
  position: absolute;
  left: -20px;
  bottom: -30px;
  background-color: #1171be;
  box-shadow: 0 0 10px rgba(0, 0, 0, .2);
  color: #fff;
  border-radius: 8px;
}

.sec4 .pho .tex strong {
  display: block;
  font-size: 32px;
}

.sec4 .text {
  width: 57%;
  padding: 0 3% 0 0;
  box-sizing: border-box;
}

.sec4 .text .title {
  text-align: left;
  padding-top: 10px;
}

.sec4 .text .tex p {
  line-height: 30px;
  text-indent: 2em;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  font-size: 16px;
}

.sec4 .text ul {
  padding-top: 50px;
}

.sec4 .text li {
  width: 25%;
  float: left;
  padding: 0 10px;
  box-sizing: border-box;
}

.sec4 .text li a {
  display: block;
  border-radius: 5px;
  padding: 15px 20px;
  background: #f7fbfd;
}

.sec4 .text li span {
  display: block;
  width: 34px;
  line-height: 34px;
  margin-bottom: 8px;
}

.sec4 .text li strong {
  font-size: 32px;
  font-weight: 500;
}

.sec4 .text li b {
  font-size: 22px;
  font-weight: 500;
}

.sec4 .text li p {
  font-size: 15px;
  color: #999;
}

.sec4 .more {
  text-align: left;
}

.sec4 .more a {
  background: #1171be;
  color: #fff;
  border: none;
}

/* 视频中心 */
.sec6 .container {
  position: relative;
}

.sec6 .swiper-button-next {
  right: -50px;
}

.sec6 .swiper-button-prev {
  left: -50px;
}

.sec6 .butt {
  width: 40px;
  line-height: 60px;
  height: 60px;
  background: #f5f7f8;
  color: #1171be;
  border-radius: 4px;
}

.sec6 .butt:after {
  font-size: 30px;

}

.sec6 .swiper-slide {
  padding: 10px;
  box-sizing: border-box;
}

.sec6 .swiper-slide a {
  display: block;
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 0 10px rgba(0, 0, 0, .1);
}

.sec6 .swiper-slide a h3 {
  font-size: 20px;
  /* position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  color: #fff; */
  padding: 14px;
  text-align: center;
  font-weight: 500;
  background: #f4faff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sec6 .swiper-slide a .pho {
  position: relative;
}

.sec6 .swiper-slide a .pho:after {
  content: "";
  width: 50px;
  height: 50px;
  background: #fff url(../images/icon27.png) no-repeat center;
  background-size: 20px;
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(0, 0, 0, .1);
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.sec6 .swiper-slide a:hover h3 {
  color: #1171be;
}

/* 新闻资讯 */

.sec5 .lBox {
  width: 65%;
}

.sec5 .lBox .box {
  margin-bottom: 30px;
}

.sec5 .lBox .box a {
  display: block;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #efefef;
  background: #fdfdfd;
}

.sec5 .lBox .box a .pho {
  width: 35%;
}

.sec5 .lBox .box a .text {
  padding: 20px 25px 0;
  box-sizing: border-box;
  width: 65%;
}

.sec5 .lBox .box a .text .tt {
  color: #999;
  font-size: 15px;
}


.sec5 .lBox .box a .text h3 {
  font-size: 21px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 40px;
}

.sec5 a p {
  line-height: 26px;
  font-size: 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  color: #898989;
  margin: 12px 0;
}

.sec5 .lBox .box a .text span {
  display: block;
  color: #1171be;
}

.sec5 .lBox .box a .text span img {
  width: 26px;
}

.sec5 .lBox .box a:hover .text h3 {
  color: #1171be;
}

.sec5 .lBox li {
  width: 49%;
  float: left;
  box-sizing: border-box;
}

.sec5 .lBox li:last-child {
  float: right;
}

.sec5 .lBox li a {
  display: block;
  padding: 22px 22px 0;
  border: 1px solid #efefef;
  background: #fdfdfd;
  border-radius: 6px;
  overflow: hidden;
}

.sec5 .lBox li a h3 {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 19px;
}

.sec5 .lBox li a p {
  margin: 8px 0 20px;

}

.sec5 .lBox li a span {
  display: block;
  margin: 0 -22px;
  padding: 0 22px;
  line-height: 50px;
  border-top: 1px solid #efefef;
  background: url(../images/jt6.png) no-repeat right 22px center;
  background-size: 20px;
  color: #999;
  font-size: 14px;
}

.sec5 .lBox li a:hover h3 {
  color: #1171be;
}

.sec5 .lBox li a:hover span {
  color: #1171be;
  background-image: url(../images/jt5.png);
}

.sec5 .rBox {
  width: 32%;
}

.sec5 .rBox li {
  margin-bottom: 20px;
}

.sec5 .rBox a {
  display: block;
  padding: 15px 20px 0;
  border: 1px solid #efefef;
  border-radius: 8px;
}

.sec5 .rBox a .text h3 {
  white-space: nowrap;
  overflow: hidden;
  font-size: 18px;
  text-overflow: ellipsis;
}

.sec5 .rBox a .text span {
  display: block;
  background: url(../images/jt6.png) no-repeat right center;
  background-size: 20px;
  color: #999;
  font-size: 14px;
  border-top: 1px solid #efefef;
  padding: 10px 0;
}

.sec5 .rBox li a:hover h3 {
  color: #1171be;
}

.sec5 .rBox li a:hover span {
  color: #1171be;
  background-image: url(../images/jt5.png);
}

@media all and (min-width: 768px) and (max-width: 1024px) {}



@media all and (min-width: 0) and (max-width: 767px) {}

/* ===== 首页响应式补充：保留原样式及轮播脚本 ===== */
/* 1. 992px ~ 1600px */
@media all and (min-width: 992px) and (max-width: 1600px) {
  .sec2 .ul1 {
    padding-inline: 4%;
    padding-top: 0;
  }

  .sec4 .text li {
    padding-inline: 6px;
  }

  .sec4 .text li a {
    padding: 15px 10px;
  }

  .sec5 .lBox .box a .text {
    padding: 14px 18px;
  }
}

/* 2. 992px ~ 1440px：四列卡片减为三列 */
@media all and (min-width: 992px) and (max-width: 1440px) {
  .sec2 .box .ul2 {
    display: flex;
    flex-wrap: wrap;
  }

  .sec2 .box .ul2 li {
    width: 33.333%;
  }

  .sec2 .ul1 {
    padding-inline: 0;
  }

  .sec2 .ul1 li {
    padding-inline: 8px;
  }

  .sec2 .ul1 li a span {
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .sec3 .box {
    padding: 20px;
  }

  .sec4 .text ul {
    padding-top: 24px;
  }

  .sec4 .text li strong {
    font-size: 26px;
  }

  .sec5 .lBox .box a .text h3 {
    font-size: 19px;
    line-height: 1.5;
  }
}

/* 3. 320px ~ 991px：卡片两列，图文模块堆叠 */
@media all and (min-width: 320px) and (max-width: 991px) {

  .sec1 ul,
  .sec2 .box .ul2,
  .sec4 .text ul {
    display: flex;
    flex-wrap: wrap;
  }

  .sec1 ul li,
  .sec2 .box .ul2 li,
  .sec4 .text li {
    width: 50%;
    padding: 12px;
  }

  .sec1 ul li:nth-child(2n) {
    border-right: 0;
  }

  .sec2 .ul1 {
    display: flex;
    padding: 16px 0;
  }

  .sec2 .ul1 li {
    padding: 0 6px;
  }

  .sec2 .ul1 li a,
  .sec2 .ul1 li.on a {
    padding: 64px 12px 16px;
    text-align: center;
  }

  .sec2 .ul1 li a b {
    left: 50%;
    top: 16px;
    transform: translateX(-50%);
  }

  .sec2 .ul1 li a span {
    white-space: normal;
    overflow-wrap: anywhere;
    font-size: 13px;
  }

  .sec3 .box,
  .sec3 .box:nth-child(2) {
    width: 100%;
    float: none;
    margin: 0 0 20px;
    padding: 20px;
  }

  .sec4 .pho,
  .sec4 .text,
  .sec5 .lBox,
  .sec5 .rBox {
    width: 100%;
    float: none;
  }

  .sec4 .pho {
    margin-bottom: 24px;
  }

  .sec4 .pho img {
    width: 100%;
    margin: 0;
  }

  .sec4 .pho .tex {
    left: 12px;
    bottom: 12px;
    padding: 12px;
  }

  .sec4 .text {
    padding: 0;
  }

  .sec4 .text ul {
    padding-top: 20px;
  }

  .sec5 .rBox {
    margin-top: 20px;
  }

  .sec6 .swiper-button-prev {
    left: 0;
  }

  .sec6 .swiper-button-next {
    right: 0;
  }

  .sec6 .swiper-slide a h3 {
    font-size: 16px;
    padding: 10px;
    overflow-wrap: anywhere;
  }

  .sec5 .lBox .box a .text {
    padding: 12px 16px;
  }

  .sec5 .lBox .box a .text h3 {
    font-size: 18px;
    line-height: 1.5;
    white-space: normal;
  }
}

/* 4. 320px ~ 767px：缩小间距和标题 */
@media all and (min-width: 320px) and (max-width: 767px) {
  .sec1 ul {
    padding-top: 16px;
  }

  .sec1 ul li h3,
  .sec2 .ul1 li a h3 {
    font-size: 17px;
  }

  .sec2 .box .ul2 li {
    padding: 10px 6px;
  }

  .sec3,
  .sec4 {
    margin-top: 24px;
  }

  .sec3 {
    padding-bottom: 20px;
  }

  .sec4 .text li a {
    padding: 14px;
  }

  .sec5 .lBox .box a .pho,
  .sec5 .lBox .box a .text {
    float: none;
    width: 100%;
  }

  .sec5 .lBox li a {
    padding: 16px 16px 0;
  }

  .sec5 .lBox li a span {
    margin-inline: -16px;
    padding-inline: 16px;
  }

  .bannerSwiper .swiper-button-next {
    right: 8px;
  }

  .bannerSwiper .swiper-button-prev {
    left: 8px;
  }

  .bannerSwiper .swiper-button-next:after,
  .bannerSwiper .swiper-button-prev:after {
    font-size: 22px;
  }

  .bannerSwiper .swiper-pagination {
    bottom: 4px;
  }

  .bannerSwiper .swiper-pagination-bullet {
    width: 8px;
    height: 8px;
  }
}

/* 5. ≤480px：内容卡片单列，视频保持滑动及原导航功能 */
@media all and (max-width: 480px) {

  .sec1 ul li,
  .sec2 .ul1 li,
  .sec2 .box .ul2 li,
  .sec4 .text li,
  .sec5 .lBox li,
  .sec5 .lBox li:last-child {
    float: none;
    width: 100%;
    margin-bottom: 12px;
    border-right: 0;
  }

  .sec2 .ul1 {
    display: block;
  }

  .sec2 .ul1 li a,
  .sec2 .ul1 li.on a {
    padding: 18px 16px 18px 70px;
    text-align: left;
  }

  .sec2 .ul1 li a b {
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
  }

  .sec2 .box .ul2 li h3,
  .sec5 .lBox li a h3,
  .sec5 .rBox a .text h3 {
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .sec4 .pho .tex strong {
    font-size: 26px;
  }

  .sec4 .text .tex p {
    font-size: 15px;
    line-height: 1.8;
  }

  /* Swiper 的 slidesPerView 为固定三列；保留其计算轨道，通过可视窗口显示一张。 */
  .sec6 .container {
    overflow: hidden;
  }

  .sec6 .vdSwiper {
    width: calc(300% + 44px);
  }

  .sec6 .swiper-slide {
    padding: 8px;
  }

  .sec6 .butt {
    width: 30px;
    height: 44px;
    line-height: 44px;
  }

  .sec6 .butt:after {
    font-size: 22px;
  }

  .sec2 .pho img,
  .sec3 .pho img,
  .sec5 .pho img,
  .sec6 .pho img {
    width: 100%;
    height: auto;
  }
}

/* ===== 首页精调：产品列数、等高卡片、视频文字及间距 ===== */
/* 1. 992px ~ 1600px：技术支持左右等高、底部对齐 */
@media all and (min-width: 992px) and (max-width: 1600px) {
  #main .sec5>.clearfix {
    display: flex;
    align-items: stretch;
    gap: 24px;
  }

  #main .sec5>.clearfix:after {
    display: none;
  }

  #main .sec5 .lBox {
    float: none;
    width: calc(66% - 12px);
    display: flex;
    flex-direction: column;
    min-width: 0;
  }

  #main .sec5 .rBox {
    float: none;
    width: calc(34% - 12px);
    min-width: 0;
  }

  #main .sec5 .lBox .box {
    display: flex;
    flex: 1;
    margin-bottom: 20px;
  }

  #main .sec5 .lBox .box>a {
    display: flex;
    align-items: center;
    width: 100%;
  }

  #main .sec5 .lBox .box>a:after {
    display: none;
  }

  #main .sec5 .lBox .box a .text {
    min-width: 0;
  }

  #main .sec5 .lBox>ul {
    display: flex;
    gap: 16px;
  }

  #main .sec5 .lBox>ul:after {
    display: none;
  }

  #main .sec5 .lBox li,
  #main .sec5 .lBox li:last-child {
    float: none;
    width: calc(50% - 8px);
    display: flex;
  }

  #main .sec5 .lBox li a {
    display: flex;
    flex-direction: column;
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
  }

  #main .sec5 .lBox li a span {
    margin-top: auto;
  }

  #main .sec5 .rBox>ul {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 20px;
  }

  #main .sec5 .rBox li {
    display: flex;
    flex: 1;
    margin: 0;
    min-width: 0;
  }

  #main .sec5 .rBox li a {
    display: flex;
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
  }

  #main .sec5 .rBox li a:after {
    display: none;
  }

  #main .sec5 .rBox a .text {
    display: flex;
    flex-direction: column;
    width: 100%;
    min-width: 0;
  }

  #main .sec5 .rBox a .text span {
    margin-top: auto;
  }

  #main .sec6 .swiper-slide a h3 {
    font-size: 18px;
    line-height: 1.6;
    padding: 12px 8px;
  }
}

/* 2. 992px ~ 1440px：四个产品一行；1280px 附近英文换行也保持栏目等高 */
@media all and (min-width: 992px) and (max-width: 1440px) {
  #main .sec2 .box .ul2 li {
    width: 25%;
    padding-inline: 10px;
  }

  #main .sec2 .box .ul2 li h3 {
    font-size: clamp(15px, 1.2vw, 17px);
  }

  #main .sec2 .ul1 {
    display: flex;
    align-items: stretch;
    padding-inline: 0;
  }

  #main .sec2 .ul1 li {
    display: flex;
    width: 33.333%;
    min-width: 0;
  }

  #main .sec2 .ul1 li a,
  #main .sec2 .ul1 li.on a {
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    box-sizing: border-box;
    padding: 22px 12px 22px 62px;
  }

  #main .sec2 .ul1 li a b {
    width: 32px;
    height: 32px;
    background-size: 32px;
    left: 18px;
  }

  #main .sec2 .ul1 li a h3 {
    font-size: clamp(16px, 1.35vw, 19px);
  }

  #main .sec2 .ul1 li a span {
    font-size: 13px;
    line-height: 1.6;
    white-space: normal;
    overflow-wrap: normal;
  }

  /* 视频间距由原 Swiper 的 1281px 断点同步控制，去除叠加的横向内边距。 */
  #main .sec6 .swiper-slide {
    padding: 8px 0;
  }
}

/* 3. 320px ~ 991px：产品两列、方案两列、数据四列、视频两张（481px 起） */
@media all and (min-width: 320px) and (max-width: 991px) {
  #main .sec2 .box .ul2 li {
    width: 50%;
  }

  #main .sec2 .ul1 {
    display: flex;
    align-items: stretch;
  }

  #main .sec2 .ul1 li {
    display: flex;
    min-width: 0;
  }

  #main .sec2 .ul1 li a,
  #main .sec2 .ul1 li.on a {
    width: 100%;
    box-sizing: border-box;
  }

  #main .sec2 .ul1 li a span {
    display: none;
  }

  #main .sec3>.container.clearfix {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  #main .sec3>.container.clearfix:after {
    display: none;
  }

  #main .sec3 .box,
  #main .sec3 .box:nth-child(2) {
    float: none;
    width: 100%;
    margin: 0;
    padding: 18px;
    display: flex;
    flex-direction: column;
  }

  #main .sec3 .box .top span {
    min-height: 3.2em;
    line-height: 1.6;
  }

  #main .sec3 .box>.text {
    display: flex;
    flex-direction: column;
    flex: 1;
  }

  #main .sec3 .box .text .mor {
    margin-top: auto;
    padding-top: 16px;
  }

  #main .sec4 .text ul {
    display: flex;
    flex-wrap: wrap;
  }

  #main .sec4 .text li {
    width: 25%;
    padding: 6px;
    margin: 0;
  }

  #main .sec4 .text li a {
    padding: 14px 8px;
  }

  #main .sec4 .text li strong {
    font-size: clamp(20px, 3.2vw, 28px);
    white-space: nowrap;
  }

  #main .sec4 .text li b {
    font-size: 18px;
  }

  #main .sec4 .text li p {
    font-size: 14px;
  }

  #main .sec4 .text li span {
    width: 28px;
    height: 28px;
    line-height: 28px;
  }

  #main .sec4 .more {
    text-align: center;
  }

  #main .sec4 .more a {
    width: auto;
  }

  #main .sec6 .vdSwiper {
    width: 100%;
  }

  #main .sec6 .swiper-slide {
    padding: 8px 0;
  }

  #main .sec6 .swiper-slide a h3 {
    font-size: 15px;
    line-height: 1.6;
    min-height: 3.2em;
    padding: 10px 8px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

/* 4. 320px ~ 767px：紧凑字号与图标，保持两列方案的可读性 */
@media all and (min-width: 320px) and (max-width: 767px) {
  #main .sec3 .box {
    padding: 14px;
  }

  #main .sec3 .box .top h3 {
    font-size: 18px;
  }

  #main .sec3 .box .top strong {
    font-size: 30px;
  }

  #main .sec3 .box .top span {
    font-size: 12px;
  }

  #main .sec3 .box li a {
    font-size: 14px;
    padding-right: 22px;
    background-size: 16px;
  }

  #main .sec2 .ul1 li a h3 {
    font-size: 16px;
  }

  #main .sec2 .ul1 li a b {
    width: 32px;
    height: 32px;
    background-size: 32px;
  }

  #main .sec2 .box .ul2 li h3 {
    font-size: 16px;
  }

  #main .sec6 .swiper-slide a h3 {
    font-size: 14px;
  }
}

/* 5. ≤480px：产品/方案单列，关于我们两列，视频一张 */
@media all and (max-width: 480px) {
  #main .sec2 .box .ul2 li {
    width: 100%;
  }

  #main .sec2 .ul1 {
    display: block;
  }

  #main .sec2 .ul1 li {
    width: 100%;
  }

  #main .sec3>.container.clearfix {
    grid-template-columns: minmax(0, 1fr);
  }

  #main .sec3 .box .top span {
    min-height: 0;
  }

  #main .sec4 .text li {
    width: 50%;
  }

  #main .sec4 .text li a {
    padding: 16px;
  }

  #main .sec4 .text li strong {
    font-size: 26px;
  }

  #main .sec6 .vdSwiper {
    width: 100%;
  }

  #main .sec6 .swiper-slide a h3 {
    font-size: 15px;
  }
}

/* ===== 首页细节补充：自然图文高度、独立视频按钮、按尺寸显示内容 ===== */
/* 992px ~ 1600px：取消图片卡片撑高，以图文实际尺寸协调左右高度 */
@media all and (min-width: 992px) and (max-width: 1600px) {
  #main .sec5>.clearfix {
    align-items: flex-start;
  }

  #main .sec5 .lBox .box {
    flex: none;
  }

  #main .sec5 .lBox .box>a {
    align-items: flex-start;
  }

  #main .sec5 .lBox .box a .pho {
    flex: 0 0 clamp(260px, 22vw, 280px);
    width: clamp(260px, 22vw, 280px);
  }

  #main .sec5 .lBox .box a .pho img {
    display: block;
    width: 100%;
    height: auto;
  }

  #main .sec5 .lBox .box a .text {
    flex: 1;
    width: auto;
    padding: 14px 16px;
  }

  #main .sec5 .lBox .box a .text h3 {
    font-size: 19px;
    line-height: 1.5;
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
  }

  #main .sec5 .lBox .box a .text p {
    font-size: 14px;
    line-height: 24px;
    margin: 10px 0;
  }

  #main .sec5 .rBox>ul {
    height: auto;
    gap: 16px;
  }

  #main .sec5 .rBox li {
    flex: none;
  }

  #main .sec5 .rBox a {
    padding: 12px 16px 0;
  }

  #main .sec5 .rBox a p {
    font-size: 14px;
    line-height: 24px;
    margin: 10px 0;
  }

  #main .sec5 .rBox a .text span {
    padding: 9px 0;
  }
}

/* 320px ~ 991px：视频切换按钮放在卡片下方，方案暂显两张 */
@media all and (min-width: 320px) and (max-width: 991px) {
  #main .sec6>.container:not(.title) {
    padding-bottom: 56px;
  }

  #main .sec6 .butt {
    top: auto;
    bottom: 0;
    margin-top: 0;
    width: 44px;
    height: 44px;
    line-height: 44px;
    border: 1px solid #dfebf4;
    box-sizing: border-box;
    border-radius: 6px;
  }

  #main .sec6 .swiper-button-prev {
    left: calc(50% - 52px);
    right: auto;
  }

  #main .sec6 .swiper-button-next {
    right: calc(50% - 52px);
    left: auto;
  }

  #main .sec6 .butt:after {
    font-size: 22px;
  }

  #main .sec3>.container.clearfix>.box:nth-child(3) {
    display: none;
  }
}

/* 320px ~ 767px：查看更多使用内容宽度，保留舒适点击区域 */
@media all and (min-width: 320px) and (max-width: 767px) {
  #main .sec .more a {
    width: auto;
    box-sizing: border-box;
  }
}

/* ≤480px：恢复第三张方案卡片及产品栏目英文 */
@media all and (max-width: 480px) {
  #main .sec3>.container.clearfix>.box:nth-child(3) {
    display: flex;
  }

  #main .sec2 .ul1 li a span {
    display: block;
    font-size: 12px;
    line-height: 1.6;
    margin-top: 4px;
    white-space: normal;
    overflow-wrap: normal;
  }
}