

.header {
  position: relative;
  height: 80px;
  background: #fff;
  font-size: 18px;
  display: flex;
  align-items: center;
}
.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 1200px;
}

.header-branding {
  max-width: 158px;
}
.header-menu {
  display: flex;
  align-items: center;
  margin: 0;
}
.header-item {
  position: relative;
  margin-left: 50px;
  /* padding-bottom: 4px; */
  /* border-bottom: 1px solid transparent; */
  cursor: pointer;
}
.header-item::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 100%;
  height: 2px;
  background-color: transparent;
  font-size: 400px;
}
.header-item.curr {
  color: #891414;
  /* border-bottom-color: #891414; */
  /* background-color: #891414; */
}
.header-item.curr::before {
  background-color: #891414;
}

.banner-section {
  background-color: #000;
  height: 650px;
  padding: 110px 0;
  background-image: url(https://oss.3sigmaconsulting.com.cn/web/C3/img1v/img_banner.png);
  background-position: top right;
  background-repeat: no-repeat;
  background-size: 50% 100%;
}

.banner-section-text {
  width: 367px;
  font-weight: 400;
  font-size: 24px;
  color: #fff;
  line-height: 40px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}
.banner-section-text-1 {
  width: 151px;
  height: 28px;
  font-weight: 400;
  font-size: 20px;
  color: #891414;
  line-height: 28px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}
.banner-section-text-2 {
  margin-top: 30px;
  width: 322px;
  height: 128px;
  font-weight: 600;
  font-size: 46px;
  color: #fff;
  line-height: 64px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}
.banner-section-text-3 {
  margin-top: 20px;
  width: 74px;
  height: 3px;
  background: #fff;
  border-radius: 0px;
}
.banner-section-text-4 {
  margin-top: 20px;
  width: 367px;
  height: 80px;
  font-weight: 400;
  font-size: 24px;
  color: #fff;
  line-height: 40px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}
.banner-section-text-5 {
  margin-top: 20px;
  width: 190px;
  height: 60px;
  border: 2px solid #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 400;
  font-size: 24px;
  color: #fff;
  line-height: 34px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}



.banner2-section {
  padding-top: 90px;
}
.banner2-top {
  display: flex;
  height: 263px;
}
.banner2-top-img {
  width: 395px;
  height: 100%;
  margin-right: 25px;
}
.banner2-top-back {
  box-sizing: border-box;
  padding: 78px 78px 0;
  flex: 1;
  height: 100%;
  background: #1c1c1c;
  font-weight: 400;
  font-size: 20px;
  color: #ffffff;
  line-height: 36px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}
.banner2-bottom {
  height: 177px;
  background: #891414;
  display: flex;
  align-items: center;
  font-size: 20px;
  color: #fff;
}
.banner2-bottom-item1 {
  box-sizing: border-box;
  margin-left: 180px;
}
.banner2-bottom-item2 {
  box-sizing: border-box;
  margin-left: 218px;
}
.banner2-bottom-item3 {
  box-sizing: border-box;
  margin-left: 218px;
}




.supervisor-mian {
  position: relative;
  box-sizing: border-box;
  width: calc(1200px + 24px);
  margin-left: -12px;
  margin-right: -24px;
}


.supervisor-item {
  position: relative;
  box-sizing: border-box;
  padding: 24px 24px 48px;
  height: 517px;
  background: #f5f5f5;
  margin: 0 12px;
}

.supervisor-item-education {
  min-height: 330px;
}


.supervisor-item-name {
  /* font-weight: 400; */
  font-size: 28px;
  color: #3d3d3d;
  line-height: 39px;
  text-align: left; 
  font-style: normal;
  text-transform: none;
}
.supervisor-item-photo {
  width: 56px;
  height: 56px;
}

.supervisor-item-label {
  width: 7px;
  height: 8px;
  margin-right: 8px;
  margin-top: 6px;
}
.supervisor-item-text {
  width: 325px;
  /* font-weight: 400; */
  font-size: 14px;
  color: #303133;
  line-height: 22px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}
.supervisor-item-school {
  height: 42px;
}
.supervisor-item-school+.supervisor-item-school {
  margin-left: 30px;
}

.supervisor-slider-btn-left {
  margin-left: 24px;
  width: 46px;
  height: 46px;
  background-image: url(https://oss.3sigmaconsulting.com.cn/web/C3/img1v/icon_left_nor.png);
  background-repeat: no-repeat;
  background-size: 100% 100%;
  cursor: pointer;
}
.supervisor-slider-btn-left.slick-disabled {
  background-image: url(https://oss.3sigmaconsulting.com.cn/web/C3/img1v/icon_left_def.png);
  cursor: not-allowed;
}
.supervisor-slider-btn-right {
  cursor: pointer;
  margin-left: 24px;
  width: 46px;
  height: 46px;
  background-image: url(https://oss.3sigmaconsulting.com.cn/web/C3/img1v/icon_right_nor.png);
  background-repeat: no-repeat;
  background-size: 100% 100%;
}
.supervisor-slider-btn-right.slick-disabled {
  background-image: url(https://oss.3sigmaconsulting.com.cn/web/C3/img1v/icon_right_def.png);
  cursor: not-allowed;
}


.supervisor-bottom {
  padding-top: 20px;
  padding-bottom: 30px;
  display: flex;
  align-items: center;
}

.supervisor-dots > .slick-dots {
  display: flex;
  background-color: #b8b8b8;
}
.supervisor-dots > .slick-dots > li {
  font-size: 0;
  height: auto;
  max-width: 175px;
  flex-grow: 1;
}
.supervisor-dots > .slick-dots > li:hover {
  background-color: #891414;
}

.supervisor-dots > .slick-dots > li > button {
  font-size: 0;
  width: 100%;
  height: 1px;
  border: none;
  background-color: transparent;
}

.supervisor-dots > .slick-dots > li.slick-active {
  background-color: #891414;
}

.mentee-section-nav {
  background: #ededed;
  color: #333;
}
.mentee-section-nav-item,
.job-section-nav-item {
  height: 60px;
  /* font-weight: 400; */
  font-size: 20px;
  font-style: normal;
  text-transform: none;
}
.mentee-section-nav-item.active,
.mentee-section-nav-item:hover,
.job-section-nav-item.active {
  background: #000;
  color: #fff;
}

.mentee-section-nav-line {
  width: 1px;
  height: 28px;
  background: #b8b8b8;
}


.school-list-1 {
  display: grid;
  grid-template-columns: repeat(5, 160px);
  grid-column-gap: 100px;
  grid-row-gap: 100px;
  grid-template-rows: auto;
  padding-top: 76px;
  padding-bottom: 75px;
}
/* 
.school-list > div {
  background-color: #891414;
} */

.school-img {
  width: 160px;
}


.school-list-2 {
  display: grid;
  grid-template-columns: repeat(4, 160px);
  grid-column-gap: 186px;
  grid-row-gap: 100px;
  grid-template-rows: auto;
  padding-top: 67px;
  padding-bottom: 94px;
}

.school-list-3 {
  display: grid;
  grid-template-columns: repeat(4, 160px);
  grid-column-gap: 186px;
  grid-row-gap: 100px;
  grid-template-rows: auto;
  padding-top: 81px;
  padding-bottom: 74px;
}


.job-ba-img {
  margin-top: 48px;
  width: 1200px;
  margin-bottom: 60px;
}
.section-mian-hunting {
  min-height: 327px;
  margin-top: 65px;
  margin-bottom: 100px;
}

.hunting-mian {
  position: absolute;
  left: 0;
  top: 0;
}
.hunting-mian-list {
  width: 160px;
  height: 327px;
  overflow: hidden;
  cursor: pointer;
  transition: width .3s;
}
.hunting-mian-list.show {
  width: 280px;
  cursor: auto;
}
.hunting-mian-list.show .hunting-mian-main {
  background: linear-gradient(270deg, rgba(0,0,0,0.6) 0%, rgba(140,140,140,0.51) 100%);
}
.hunting-mian-list.show .hunting-item-text {
  opacity: 1;
}

.hunting-mian-item {
  width: 280px;
  height: 327px;
}

.hunting-mian-list +.hunting-mian-list {
  margin-left: 24px;
}


.hunting-mian-img {
  width: 100%;
  height: 100%;
}

.hunting-mian-main {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 1;
  width: 280px;
  height: 100%;
  padding-left: 34px;
}

.hunting-item-img {
  margin-top: 70px;
  width: 48px;
  height: 48px;
}
.hunting-item-name {
  margin-top: 10px;
  font-size: 16px;
  color: #f1f1f1;
}
.hunting-item-text {
  margin-top: 10px;
  font-size: 14px;
  color: #fff;
  min-height: 100px;
  opacity: 0;
}

.hunting-item-num {
  font-size: 20px;
  color: #f3f3f3;
}


.strategy-mian {
  background-color: #000;
  background-image: url(https://oss.3sigmaconsulting.com.cn/web/C3/img1v/iimg_strategies_bg.png);
  background-position: 0% 0%;
  background-repeat: no-repeat;
  background-size: cover;
  min-height: 780px;
}
.strategy-mian-main {
  margin-top: 86px;
}
.strategy-mian-nav {
  box-sizing: border-box;
  padding: 8px 15px;
  width: 180px;
  height: 317px;
  background: #343434;
}

.strategy-mian-nav-item {
  margin-top: 20px;
  width: 150px;
  height: 46px;
  border-radius: 4px;
  /* font-weight: 400; */
  font-size: 18px;
  color: #fff;
  text-align: center;
}

.strategy-mian-nav-item:hover,
.strategy-mian-nav-item.active {
  background: #891414;
}

.strategy-mian-imgs {
  width: 985px;
  height: 242px;
}
.strategy-mian-img-img {
  width: 985px;
  max-width: 985px;
  display: none;
}
.strategy-mian-img-img.active {
  display: inline-block;
}


.img_timeline {
  padding: 90px 0;
}



.serve-mian {
  background-image: url(https://oss.3sigmaconsulting.com.cn/web/C3/img1v/img_services_bg.png);
  background-position: 0% 0%;
  background-repeat: no-repeat;
  background-size: 72% 100%;
  min-height: 652px;
  position: relative;
  overflow: hidden;
}
.serve-mian-section {
  padding: 70px 0 0;
}
.serve-mian-title {
  padding-top: 40px;
  font-size: 32px;
  color: #fff;
}
.serve-mian-nav {
  width: 345px;
  margin-top: 35px;
  border-left: 1px solid #fff;
  font-size: 18px;
  color: #FFF;
}
.serve-mian-nav-item {
  box-sizing: border-box;
  margin-top: 20px;
  padding-left: 20px;
  width: 207px;
  height: 58px;
  border-left: 4px solid transparent;
}
.serve-mian-nav-item:hover,
.serve-mian-nav-item.active {
  background: #891414;
  border-left-color: #fff;
}


.serve-mian-slider {
  width: 854px;
  min-height: 510px;
  background: #f7f7f7;
}

.serve-slider {
  position: relative;
  box-sizing: border-box;
  width: 854px;
  padding: 54px 0 33px 32px;
  height: 426px;
  overflow: auto;
}


.serve-slider-item {
  position: relative;
  box-sizing: border-box;
  width: 240px;
  height: 338px !important;
  background: #fff;
  padding: 20px 20px 0;
  margin-right: 20px;
}

.serve-slider-item-education {
  min-height: 330px;
}


.serve-slider-item-name {
  font-size: 18px;
  color: #891414;
}
.serve-slider-item-title {
  padding-top: 13px;
  font-size: 18px;
  color: #303133;
}
.serve-slider-item-label {
  margin-top: 4px;
  width: 26px;
  height: 3px;
  background: #891414;
}

.serve-slider-item-text {
  margin-top: 20px;
  font-size: 14px;
  color: #303133;
  line-height: 24px;
}

.serve-mian-bottom {
  display: flex;
  align-items: center;
  padding: 20px 30px 0;
}

.serve-mian-schema {
  width: 854px;
  height: 510px;
  background: #f7f7f7;
}

.serve-mian-schema2-img {
  max-width: 704px;
  max-height: 510px;
}


.serve-slider2 {
  box-sizing: border-box;
  width: 854px;
  padding: 40px 0 15px 32px;
}

.serve-slider2-item {
  box-sizing: border-box;
  width: 240px;
  height: 370px !important;
  padding: 0 20px;
  border-right: 1px solid #e8e8e8;
}
.serve-slider2-item:nth-child(0) {
  border-left: 1px solid #e8e8e8;
}


.serve-slider2-item-name {
  font-size: 16px;
  color: #891414;
}

.serve-slider2-item-img {
  margin-top: 10px;
  width: 170px;
  height: 330px;
}
.servemian-slider2-dots {
  padding: 0 30px;
}

.serve-mian-schema,
.serve-mian-schema2,
.serve-mian-slider
 {
  transform: translateY(0);
}
.serve-mian-schema2.show,
.serve-mian-schema.show,
.serve-mian-slider.show
 {
  position: absolute;
  transform: translateY(-100vh);
}




.offer-main {
  margin-top: 60px;
  padding-bottom: 80px;
  justify-content: center;
  overflow: hidden;
}

.offer-slider {
  width: 900px;
  /* height: 494px; */
}

.swiper-slide.offer-item {
  width: 390px;
  /* height: 494px; */
  font-size: 18px;
  background: #fff;
  transition: 300ms;
  transform: scale(0.8);
  transform-origin: 50% 50%;
}
.swiper-slide.offer-item.swiper-slide-active,
.swiper-slide.offer-item.swiper-slide-duplicate-active {
  transform: scale(1);
}



/* footer */
.footer {
  padding-bottom: 45px;
  font-size: 14px;
}
.footer-navs {
  border-bottom: 1px solid #e8e8e8;
  padding: 32px 0;
} 
.footer-navs > span{
  padding: 0 25px;
  color: #fff;
  font-size: 16px;
}
.footer-logo {
  margin-top: 38px;
  max-width: 500px;
}
.footer-phone {
  margin-top: 36px;
}
.footer-address {
  margin-top: 10px;
}
.footer-records {
  margin-top: 36px;
}
.footer-copyright {
  margin-left: 75px;
}


.footer-right {
  display: flex;
  padding-top: 100px;
}
.footer-right-sub,
.footer-right-sub2 {
  width: 120px;
}
.footer-right-sub2 {
  margin-left: 35px;
}

.footer-right-sub-text {
  height: 28px;
  /* font-weight: 400; */
  font-size: 13px;
  color: #fff;
  background-color: #891414;
}

.footer-right-sub-img {
  max-width: 100%;
}

.model-dioalog {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.4);
}
.model-dioalog-code {
  width: 314px;
  height: 348px;
  background: #fff;
}

.model-dioalog-code {
  box-sizing: border-box;
  padding: 32px;
  width: 314px;
  height: 348px;
  background: #fff;
}
.model-dioalog-code-text {
  margin-top: 12px;
  font-size: 16px;
  color: #303133;
}






