* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  font-size: 20px;
}

header {
  box-shadow: 2px 2px 12px 0px rgba(0, 0, 0, 0.16);
  position: sticky;
  top: 0;
  z-index: 120;
  width: 100%;
  background-color: #fff;
}

.banner {
  width: 100%;
  height: 639px;
  min-width: 1200px;
  position: relative;
  background-color: #000;
  display: flex;
  /* align-items: center; */
  justify-content: center;
  padding: 80px;
}

.banner-up {
  width: 1200px;
  display: flex;
}

.banner-up-left {
  width: 586px;
  display: flex;
  flex-direction: column;
}

.banner-up-right {
  width: 614px;
}

.banner img {
  margin-top: 84px;
}

.contact-button {
  width: 350px;
  height: 42px;
  background: #2d78b5;
  border-radius: 4px 4px 4px 4px;
  border: none;
  color: #fff;
  margin-top: 40px;
}

.contact-button:hover {
  background: #005193;
}

.contact-button-small,
.download-button-small {
  height: 42px;
  background: #2d78b5;
  border-radius: 4px 4px 4px 4px;
  border: none;
  color: #fff;
  width: 173px;
  margin-top: 40px;
}

.contact-button-small:hover {
  background: #005193;
}

.download-button-small:hover {
  background: #005193;
}

.contact-download {
  width: 350px;
  height: 42px;
  border-radius: 4px 4px 4px 4px;
  border: white solid 1px;
  background-color: #000;
  color: #fff;
  margin-top: 24px;
}

.contact-download:hover {
  background: #7d7f7f;
}

.banner-down {
  width: 1200px;
  display: flex;
  align-items: center;
  margin-top: 80px;
}

.banner-down-item {
  display: flex;
  flex-direction: column;
  color: #fff;
}

.banner-down-item-text {
  font-size: 15px;
  font-family: DIN-Regular, DIN;
  font-weight: 400;
  line-height: 24px;
  margin-top: 8px;
}

.main-title {
  /* width: 586px; */
  font-size: 44px;
  font-family: DIN-Bold, DIN;
  font-weight: bold;
  color: #ffffff;
  line-height: 59px;
  margin-top: 40px;
}

.sub-title {
  width: 560px;
  font-size: 22px;
  font-family: DIN-Regular, DIN;
  font-weight: 400;
  color: #ffffff;
  line-height: 32px;
  margin-top: 24px;
}

/* ---------------------- */
/* 左侧固定菜单 */
.fixed-memu {
  position: fixed;
  left: 28px;
  top: 150px;
  width: 296px;
  box-shadow: 2px 2px 12px 0px rgba(0, 0, 0, 0.12);
  padding: 8px 8px 0;
  background: #2d78b5;
  border-radius: 8px;
  z-index: 100;
  display: none;
}

.fixed-memu-nav {
  position: fixed;
  display: none;
  cursor: pointer;
  z-index: 200;
  left: 28px;
  top: 150px;
  width: 236px;
  height: 64px;
  background: #fff;
  padding: 2px;
  background: #ffffff;
  box-shadow: 4px 4px 8px 0px rgba(0, 0, 0, 0.28);
  border-radius: 45px;
  transition: all linear 0.5s;
}

.fixed-memu-nav-body {
  width: 100%;
  height: 60px;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #2d78b5;
  border-radius: 45px;
  font-weight: 700;
  font-size: 20px;
  color: #ffffff;
}

.fixed-memu-nav-body img {
  transform: rotate(90deg);
  margin-left: 6px;
}

.fixed-memu .fixed-memu-body {
  width: 280px;
  padding: 24px 0 15px;
  background: #fff;
  border-radius: 8px;
}

.fixed-memu .fixed-memu-close {
  width: 100%;
  height: 60px;
  cursor: pointer;
  background: #2d78b5;
  font-size: 16px;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #ffffff;
  font-family: ArialMT, ArialMT;
  font-weight: 400;
}

.fixed-memu .fixed-memu-close img {
  margin-left: 6px;
  transform: rotate(-90deg);
}

.fixed-memu-title {
  font-size: 16px;
  font-family: DIN-Bold, DIN;
  font-weight: bold;
  color: #2d78b4;
  line-height: 24px;
  padding: 9px 32px;
}

.fixed-memu li {
  list-style: none;
  position: relative;
}

.fixed-memu li a {
  display: block;
  padding: 9px 32px;
  font-size: 14px;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #000;
  line-height: 22px;
}

.fixed-memu li img {
  position: absolute;
  left: 10px;
  top: 13px;
}

.fixed-memu li .fixed-icon {
  cursor: pointer;
}

.fixed-memu li .fixed-tittle {
  display: block;
}

.fixed-memu li a:hover,
.fixed-memu li .fixed-tittle-child a:hover {
  background: rgba(45, 120, 180, 0.08);
  color: #2d78b4;
}

.fixed-tittle-child {
  overflow: hidden;
  height: 0;
  transition: all 0.3s;
}

.fixunfold {
  height: 108px;
}

.fixed-memu li .fixed-tittle-child a {
  display: block;
  padding: 7px 35px 7px 50px;
  /* padding: 0 35px; */
  color: #999999;
}

#title-4,
#title-5 {
  padding: 120px 0 60px;
}

.title-box {
  width: 100%;
  min-width: 1200px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #fff;
  flex-direction: column;
  /* height: 232px; */
}

.custom-list {
  min-width: 1200px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding-bottom: 80px;
}

.title-hori {
  width: 80px;
  height: 0px;
  border: 3px solid #2d78b5;
  margin-bottom: 14px;
}

.title-text {
  font-size: 24px;
  font-family: DIN-Bold, DIN;
  font-weight: bold;
  color: #000000;
  line-height: 32px;
}

.content-box {
  width: 100%;
  min-width: 1200px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #fff;
  padding: 40px;
  flex-direction: column;
}

.content-box ul {
  width: 1200px;
  display: flex;
  list-style-type: none;
  justify-content: space-evenly;
}

.content-box li {
  padding-bottom: 6px;
  border-bottom: 3px solid transparent;
}

.intr-title-p {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 16px;
  font-family: Arial-Regular, Arial;
  font-weight: 600;
  color: #242424;
  line-height: 24px;
  margin-top: 12px;
  margin-bottom: 8px;
}

.intr-text-p {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 16px;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #242424;
  line-height: 24px;
}

.board-content {
  display: flex;
  margin-top: 60px;
}

#advantage:hover {
  box-shadow: 2px 2px 12px 0px rgba(0, 0, 0, 0.16);
}

.left-img-grid {
  display: grid;
  grid-template-columns: 300px 300px;
  grid-template-rows: 204px 204px;
  gap: 0px;
}

.right-text-list {
  width: 576px;
  height: 408px;
  display: flex;
  flex-direction: column;
  align-items: start;
  padding: 50px 17px 0 24px;
  background-color: #fff;
  margin-left: 24px;
}

.right-text-list:hover {
  box-shadow: 2px 2px 12px 0px rgba(0, 0, 0, 0.12);
}

.right-text-list p {
  font-size: 16px;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #666666;
  line-height: 22px;
}

.right-text-list .list-item {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 16px;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #666666;
  line-height: 22px;
  margin-bottom: 8px;
}

.right-text-list .list-type {
  padding: 3px;
  /* background-color:#fff; */
  border: 5px solid #2d78b5;
  border-radius: 50%;
  margin-right: 14px;
}

.title-box table {
  width: 1200px;
  text-align: left;
  margin-top: 32px;
}

.title-box table th {
  border-bottom: 1px solid #e5e5e5;
  font-size: 16px;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #666666;
  line-height: 24px;
  /* padding-left: 56px; */
  /* padding-right: 56px; */
  width: 600px;
  padding: 12px 0;
}

.title-box table th:first-child {
  padding-left: 0;
}

.materials-list-box {
  display: flex;
}

.materials-list {
  min-width: 140px;
}

.materials-p1 {
  font-size: 22px;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #242424;
  line-height: 32px;
  margin-top: 60px;
}

.materials-p2 {
  font-size: 22px;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #666666;
  line-height: 24px;
  margin-top: 12px;
}

.materials-all-list {
  display: flex;
  font-size: 16px;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #666666;
  line-height: 24px;
  margin-top: 18px;
  justify-content: space-between;
  width: 1200px;
}

.materials-all-list ul {
  list-style-position: inside;
}

.materials-all-list ul li {
  list-style-position: inside;
  margin-bottom: 8px;
}

.materials-all-list img {
  width: 265px;
  height: 196px;
}

.materials-link {
  color: rgba(24, 144, 255, 1);
}

.materials-link a {
  color: rgba(24, 144, 255, 1);
  text-decoration: underline 1px solid rgba(24, 144, 255, 1);
}

.surface-p {
  font-size: 22px;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #242424;
  line-height: 32px;
  margin-top: 30px;
}

.surface-table {
  display: flex;
  font-size: 16px;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #666666;
  line-height: 24px;
  margin-top: 18px;
  width: 1200px;
  /* justify-content: center;
  align-items: center; */
}

.surface-table table {
  width: 620px;
  margin-top: 8px;
}

.surface-table-board {
  display: flex;
}

.surface-table td {
  border-bottom: 1px solid #ccc;
  height: 40px;
}

.brochure-text {
  font-size: 16px;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #ffffff;
  line-height: 24px;
}

.fold-describe {
  width: 100%;
  min-width: 1200px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.fold-describe-box {
  width: 1200px;
  display: flex;
  flex-direction: column;
}

.describe-main-title {
  font-size: 24px;
  font-family: DIN-Bold, DIN;
  font-weight: bold;
  color: #242424;
  line-height: 28px;
  padding: 24px 0;
  border-bottom: 1px solid #cccccc;
}

.describe-title {
  width: 1200px;
  font-size: 22px;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #242424;
  line-height: 30px;
  display: flex;
  justify-content: space-between;
  cursor: pointer;
}

.describe-content {
  font-size: 16px;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #666666;
  line-height: 24px;
  margin-top: 14px;
  overflow: hidden;
  height: 0;
  transition: height 0.3s;
}

.describe-item {
  display: flex;
  align-items: start;
  justify-content: start;
  flex-direction: column;
  border-bottom: 1px solid #cccccc;
  padding: 24px 0;
}

.unfold {
  height: 100px;
}

.img-mask {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
  /* background-color: transparent; */
  z-index: 130;
  align-items: center;
  justify-content: center;
  display: none;
}

.down-mask {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
  /* background-color: transparent; */
  z-index: 130;
  align-items: center;
  justify-content: center;
  display: none;
}

.down-mask .down-modal {
  display: flex;
  justify-content: space-around;
  align-items: center;
  width: 700px;
  height: 240px;
  background: #fff;
  position: relative;
}

.down-mask .down-modal .modal-close-icon {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  cursor: pointer;
}

.down-mask .down-modal button {
  background: #fff;
  width: 300px;
  padding: 16px;
  border: 2px solid #2d78b5;
  cursor: pointer;
  border-radius: 4px;
}

.down-mask .down-modal button:hover {
  color: #fff;
  background: #2d78b5;
}

/* ---------------------- */

.die-title {
  font-size: 32px;
  font-family: Arial-Bold, Arial;
  font-weight: bold;
  color: #ffffff;
  line-height: 38px;
  margin-bottom: 20px;
}

.die-hori {
  width: 60px;
  height: 0;
  border: 3px solid #2d78b5;
  margin-bottom: 40px;
}

.die-intro {
  display: flex;
  justify-content: space-between;
}

.die-intro-text {
  width: 39rem;
  font-size: 0.8rem;
  font-weight: 400;
  color: #868686;
}

.die-img {
  text-align: center;
  padding-top: 0.5rem;
}

.die-img img {
  width: 60%;
  height: 13rem;
}

.die-sub-title {
  color: #2971ac;
  margin-bottom: 1rem;
}

.die-text {
  font-size: 16px;
  font-family: DIN-Regular, DIN;
  font-weight: 400;
  color: #ffffff;
  line-height: 19px;
  width: 484px;
}

.die-ul {
  color: #868686;
  padding-left: 1rem;
  font-size: 0.8rem;
}

.die-ul li {
  margin-bottom: 1rem;
}

.die-app {
  width: 100%;
  min-width: 60rem;
  height: 627px;
  display: flex;
  position: relative;
  margin-top: 120px;
}

.die-app > div {
  width: 50%;
}

.die-app-left {
  background-image: url("/images/222.jpg");
  background-size: 100% 100%;
}

.die-app-left > div {
  background: linear-gradient(
    241deg,
    rgba(0, 0, 0, 0.65) 0%,
    rgba(0, 0, 0, 0.8) 100%
  );
  width: 100%;
  height: 100%;
  backdrop-filter: blur(7px);
  display: flex;
  flex-direction: column;
  padding: 11rem 10% 0 37%;
}

.die-app-right {
  background-image: url("/images/111.png");
  background-size: 100% 100%;
}

.down {
  position: absolute;
  width: 2rem !important;
  height: 2rem;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.down img {
  width: 100%;
}

.img-list {
  width: 60rem;
  display: flex;
  justify-content: space-between;
  margin: 4rem auto;
}

.img-list > div {
  width: 14.4rem;
  height: 25rem;
}

.auto {
  background-image: url("/images/in-detail/auto.png");
  background-size: cover;
}

.log {
  background-image: url("/images/in-detail/log.png");
  background-size: cover;
}

.pla {
  background-image: url("/images/in-detail/pla.png");
  background-size: cover;
}

.pla-name {
  font-size: 1rem;
  font-weight: 900;
  margin-bottom: 2rem;
  color: #fff;
}

.pla-describ {
  font-size: 0.8rem;
  color: #fff;
  height: 13rem;
  text-align: center;
}

.com {
  background-image: url("/images/in-detail/com.png");
  background-size: cover;
}

.auto > div:last-child,
.log > div:last-child,
.com > div:last-child,
.pla > div:last-child,
.tran > div:last-child {
  display: none;
  flex-direction: column;
  align-items: center;
  background: rgba(0, 0, 0, 0.5);
  width: 100%;
  height: 100%;
  padding: 4rem 1rem;
}

.auto > div:first-child,
.log > div:first-child,
.com > div:first-child,
.pla > div:first-child,
.tran > div:first-child {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.3);
  color: #fff;
  font-size: 1rem;
  font-weight: 900;
}

.auto:hover > div:last-child,
.log:hover > div:last-child,
.com:hover > div:last-child,
.pla:hover > div:last-child,
.tran:hover > div:last-child {
  display: flex;
}

.auto:hover > div:first-child,
.log:hover > div:first-child,
.com:hover > div:first-child,
.pla:hover > div:first-child,
.tran:hover > div:first-child {
  display: none;
}

/* 图文左右 tittle-1 */
.tab-box {
  width: 100%;
  min-width: 1240px;
  height: 542px;
  margin-bottom: 113px;
  background: rgba(45, 120, 181, 0.1);
}

.contant {
  width: 1240px;
  margin: auto;
  display: flex;
}

.tab-box #fixed-menue-box {
  position: relative;
}

/* 图 */
.img-left-box {
  width: 620px;
  height: 502px;
  background: #ffffff;
  /* padding-left: 40px;
  padding-bottom: 40px; */
  /* overflow: visible; */
  position: relative;
}

.img-right-box {
  width: 620px;
  height: 502px;
  background: #ffffff;
  /* padding-left: 40px;
  padding-bottom: 40px; */
  /* overflow: visible; */
  position: relative;
}

.four-img {
  width: 540px;
  height: 495px;
  position: absolute;
  bottom: 40px;
  left: 40px;
  display: grid;
  grid-template-rows: 101px 101px 44px 101px 101px;
  grid-template-columns: 264px 264px;
  grid-gap: 12px;
}

.four-img img {
  width: 264px;
  height: 100%;
  border: 1px solid #cccccc;
  border-radius: 24px;
}

.four-img .img-grid-1 {
  grid-row-start: 1;
  grid-row-end: 4;
}

.four-img .img-grid-2 {
  grid-row-start: 1;
  grid-row-end: 3;
}

.four-img .img-grid-3 {
  grid-row-start: 4;
  grid-row-end: 6;
  border: none;
}

.four-img .img-grid-4 {
  grid-row-start: 3;
  grid-row-end: 6;
}

.img-mask {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
  /* background-color: transparent; */
  z-index: 130;
  align-items: center;
  justify-content: center;
  display: none;
}

/* 文 */
.right-text-board {
  width: 620px;
  padding-left: 144px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: start;
}

.left-text-board {
  width: 620px;
  display: flex;
  padding-left: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: start;
}

.left-text-board .intr-title,
.right-text-board .intr-title {
  font-size: 32px;
  font-family: Arial-Bold, Arial;
  font-weight: bold;
  color: #2d78b5;
  line-height: 40px;
  margin-bottom: 40px;
}

.left-text-board .intr-text,
.right-text-board .intr-text {
  width: 476px;
  height: 144px;
  font-size: 16px;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #666666;
  line-height: 24px;
}

.nav-email {
  font-size: 16px;
  color: #000;
  font-family: Arial-Regular, Arial;
  font-weight: 400;
  color: #242424;
}

.nav-email:hover {
  color: #1890ff;
}