.csc-grid {
  display: grid;
}

.csc-col-1 {grid-template-columns: repeat(1, 1fr);}
.csc-col-2 {grid-template-columns: repeat(2, 1fr);}
.csc-col-3 {grid-template-columns: repeat(3, 1fr);}
.csc-col-4 {grid-template-columns: repeat(4, 1fr);}
.csc-col-5 {grid-template-columns: repeat(5, 1fr);}
.csc-col-6 {grid-template-columns: repeat(6, 1fr);}
.csc-col-7 {grid-template-columns: repeat(7, 1fr);}
.csc-col-8 {grid-template-columns: repeat(8, 1fr);}
.csc-col-9 {grid-template-columns: repeat(9, 1fr);}
.csc-col-10 {grid-template-columns: repeat(10, 1fr);}
.csc-col-11 {grid-template-columns: repeat(11, 1fr);}
.csc-col-12 {grid-template-columns: repeat(12, 1fr);}

.csc-col-pos-1 {grid-column: span 1;}
.csc-col-pos-2 {grid-column: span 2;}
.csc-col-pos-3 {grid-column: span 3;}
.csc-col-pos-4 {grid-column: span 4;}
.csc-col-pos-5 {grid-column: span 5;}
.csc-col-pos-6 {grid-column: span 6;}
.csc-col-pos-7 {grid-column: span 7;}
.csc-col-pos-8 {grid-column: span 8;}
.csc-col-pos-9 {grid-column: span 9;}
.csc-col-pos-10 {grid-column: span 10;}
.csc-col-pos-11 {grid-column: span 11;}
.csc-col-pos-12 {grid-column: span 12;}

.csc-preview > div:first-child {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 32px;
  background-color: #D5F0D0;
  padding: 86px 40px;
  box-sizing: border-box;
}

.csc-preview > div:last-child {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  background-image: url('/img/customer-service-course/bg_course-video.jpg');
  background-image: -webkit-image-set(
    url("/img/customer-service-course/bg_course-video.jpg") 1x,
    url("/img/customer-service-course/bg_course-video@2x.jpg") 2x
  );
  background-image: image-set(
    url("/img/customer-service-course/bg_course-video.jpg") 1x,
    url("/img/customer-service-course/bg_course-video@2x.jpg") 2x
  );
  background-size: cover;
  background-position: top;
  background-repeat: no-repeat;
}

.csc-btn-open-popup {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  padding: 4px 4px 4px 24px;
  color: #ffffff;
  font-size: 15px;
  font-style: normal;
  font-weight: 350;
  line-height: 22.5px;
  letter-spacing: 0.5px;
  box-sizing: border-box;
  border-radius: 100px;
  background-color: rgba(0, 0, 0, 0.38);
  outline: none;
  border: 0;
  cursor: pointer;
  transition: all 0.1s ease;
}

.csc-btn-open-popup:active {
  transform: scale(0.9);
}

.csc-hands-on {
  gap: 4px;
}

.csc-hands-on > div:first-child {
  padding: 24px 40px 40px 40px;
  box-sizing: border-box;
  background-color: #DCECF8;
}

.csc-hands-on > div:last-child {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.csc-hands-on > div:last-child > div {
  flex: 1;
  display: flex;
  gap: 24px;
  background-color: #DCECF8;
  padding: 24px 40px;
  box-sizing: border-box;
}

.csc-hands-on > div:last-child > div > img {
  max-height: 40px;
}

.csc-hands-on > div:last-child > div > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.csc-about-course > div:first-child {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.csc-about-course > div:last-child {
  position: relative;
  overflow: hidden;
}

.csc-img-info-bar {
  position: absolute;
  bottom: 0;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 16px;
  background-color: rgba(29, 29, 31, 0.60);
  box-sizing: border-box;
}

.csc-img-info-bar > img {
  max-height: 60px;
}

.csc-about-course-title {
  padding: 40px 40px 32px 40px;
  background-color: #EEECED;
  box-sizing: border-box;
}

.csc-about-course-list {
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0;
  padding: 0;
}

.csc-about-course-list > li {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 40px;
  background-color: #EEECED;
  box-sizing: border-box;
}

.csc-about-course-list > li .b-black-filled {
  color: #ffffff;
}

.csc-about-course > div:last-child > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.new-ss-what-we-offer {
  display: flex;
  flex-direction: column;
  gap: 60px;
  padding: 40px 40px;
  box-sizing: border-box;
}

.new-ss-offer-list {
  display: flex;
  align-items: stretch;
  gap: 80px;
}

.new-ss-offer-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.new-ss-offer-list:first-child > .new-ss-offer-item:first-child {
  gap: 40px;
}

.new-ss-offer-item-icon {
  padding: 20px;
  background-color: #FD0;
  box-sizing: border-box;
}

.new-ss-offer-item .ss-btn-xl {
  width: fit-content;
  display: flex;
  justify-content: center;
  align-items: center;
}

.new-ss-offer-item > div {
  align-items: flex-start;
}

.new-ss-offer-item > div > img {
  width: 40px;
  height: 40px;
}

.mobile-ss-offer-lists {
  display: none;
}

.csc-what-we-offer > div:first-child {
  position: relative;
  overflow: hidden;
  background-image: url('/img/customer-service-course/bg_flying-logo.jpg');
  background-repeat: no-repeat;
  background-size: cover;
}

.csc-what-we-offer .flying-logos div {
  flex-basis: 136px;
  min-width: 136px;
  min-height: 142px;
  margin: 0 50px 50px 0px;
  border-radius: 17.08px;
  border: 1.423px solid var(--windows-stroke-glass-specular, rgba(255, 255, 255, 0.40));
  background: rgba(227, 227, 227, 0.30);
  box-shadow: 0 3px 13px 0 rgba(0, 0, 0, 0.09);
  backdrop-filter: blur(71.16776275634766px);
}

.csc-what-we-offer .flying-logos img {
  min-width: 113px;
  min-height: 113px;
  max-width: 113px;
  max-height: 113px;
}

.csc-what-we-offer > div:last-child {
  display: flex;
  flex-direction: column;
  gap: 56px;
  padding: 40px;
  box-sizing: border-box;
}

.csc-what-we-offer .flying-logos-wrapper {
  transform: translateX(150px) rotate(20deg);
}

.csc-what-we-offer .flying-logos-9 {
  animation-name: logos-scroll-9-custom;
}

.csc-what-we-offer .flying-logos:nth-child(1) {
  left: inherit;
  animation-duration: 30s;
}

.csc-what-we-offer .flying-logos:nth-child(2) {
  left: 186px;
  animation-duration: 45s;
}

.csc-what-we-offer .flying-logos:nth-child(3) {
  left: 372px;
  animation-duration: 35s;
}

.csc-what-we-offer .flying-logos:nth-child(4) {
  left: 558px;
  animation-duration: 40s;
}

.csc-what-we-offer > div > .new-ss-offer-item {
  flex: inherit;
  margin-bottom: 4px;
}

.csc-what-we-offer > div:first-child > img {
  width: 100%;
  height: 100%;
  max-height: 850px;
  object-fit: cover;
}

.csc-who-is-this > div:last-child > img {
  width: 100%;
  height: 100%;
  max-height: 604px;
  object-fit: cover;
  object-position: top;
}

.csc-banner {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 60px 204px;
  background: linear-gradient(87deg, #EDECED 0%, #B6CBF4 100%);
  box-sizing: border-box;
}

.csc-banner > p {
  margin-top: 16px;
  margin-bottom: 24px;
}

.csc-banner > .button {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 12px;
  padding: 12px 28px;
}

.csc-video-popup {
  position: fixed;
  z-index: 1000;
  display: none;
  inset: 0;
  justify-content: center;
  align-items: center;
  padding: 0 200px;
  box-sizing: border-box;
}

.csc-video-popup-overlay {
  position: absolute;
  inset: 0;
  background: rgba(29, 29, 31, 0.60);
}

.csc-video-popup-content {
  position: relative;
  width: 100%;
  height: 87%;
  background: #fff;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 1001;
}

.csc-close-btn {
  position: absolute;
  z-index: 2;
  top: 0;
  right: 0;
  width: 40px;
  height: 40px;
  background-color: rgba(29, 29, 31, 0.40);
  border: none;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
}

.csc-video-info-bar {
  position: absolute;
  z-index: 1;
  top: 0;
  left: 0;
  padding: 8px 12px;
  box-sizing: border-box;
  background-color: rgba(29, 29, 31, 0.40);
}

.csc-video-wrapper {
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

video {
  width: 100%;
  height: 100%;
  background: #000;
}

.csc-enable-video {
  position: absolute;
  z-index: 1;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  width: 72px;
  height: 72px;
  margin: auto;
  padding: 0;
  border: 0;
  background: transparent;
  outline: 0;
  cursor: pointer;
}

.csc-enable-video > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.csc-preview-photo-info {
  position: absolute;
  left: 0;
  bottom: 0;
  width: fit-content;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 12px;
  box-sizing: border-box;
  background-color: rgba(29, 29, 31, 0.60);
}

.csc-preview-photo-info > img {
  height: 28px;
}

@media screen and (max-height: 650px) {
  .csc-video-popup-content {
    height: 75% !important;
  }
}

@media screen and (min-width: 1660px) {
  .csc-what-we-offer > div:first-child > img {
    max-height: 750px;
  }
}

@media screen and (max-width: 1440px) {
  .csc-who-is-this > div:last-child > img {
    max-height: 100%;
  }
  
  .new-ss-offer-item > div br {
    display: none;
  }
}

@media screen and (max-width: 1360px) {
  .csc-about-course > div:last-child > picture > img,
  .csc-what-we-offer > div:first-child > img {
    max-height: 100%;
  }
}

@media screen and (max-width: 1024px) {
  .csc-video-popup {
    padding: 0 64px;
  }

  .csc-video-popup-content {
    height: 65%;
  }

  .new-ss-offer-list,
  .csc-what-we-offer > div > .new-ss-offer-item {
    display: none;
  }

  .mobile-ss-offer-lists {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .mobile-ss-offer-lists .new-ss-offer-item {
    flex-basis: inherit;
    gap: 0;
    padding: 16px 0;
    box-sizing: border-box;
    transition: all .2s cubic-bezier(0.455, 0.03, 0.515, 0.955);
    overflow: hidden;
  }

  .mobile-ss-offer-lists .new-ss-offer-item > p {
    max-height: 0px;
    opacity: 0;
    transition: all .2s cubic-bezier(0.455, 0.03, 0.515, 0.955);
  }

  .mobile-ss-offer-lists .new-ss-offer-active-tab {
    gap: 16px;
  }

  .mobile-ss-offer-lists .new-ss-offer-active-tab > p {
    max-height: 900px;
    opacity: 1;
  }

  .mobile-ss-offer-lists .new-ss-offer-item:not(:first-child) {
    border-bottom: 1px solid #EEECED;
  }

  .mobile-ss-offer-lists .new-ss-offer-item:not(:first-child) > div {
    display: flex;
    justify-content: space-between;
    gap: 16px;
  }
  

  .mobile-ss-offer-lists .new-ss-offer-item:nth-last-of-type(1) {
    border-bottom: 0px;
  }

  .mobile-ss-offer-lists .new-ss-offer-item > div > img {
    width: 24px;
    height: 24px;
    transform: rotate(-180deg);
    transition: all .2s cubic-bezier(0.455, 0.03, 0.515, 0.955);
  }

  .mobile-ss-offer-lists .new-ss-offer-active-tab > div > img {
    transform: rotate(-0deg);
  }

  .mobile-ss-offer-lists .new-ss-offer-item > div > div {
    display: flex;
    gap: 16px;
  }

  .mobile-ss-offer-lists .new-ss-offer-item > div > div > img {
    width: 40px;
    height: 40px;
  }
  
  .mobile-ss-offer-lists > .button {
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .mobile-ss-offer-lists > .new-ss-offer-item:first-child > p {
    max-height: inherit;
    opacity: 1;
    margin-top: 8px;
    margin-bottom: 24px !important;
  }

  .csc-what-we-offer > div:first-child {
    display: none;
  }

  .csc-what-we-offer > .csc-col-pos-7 {
    grid-column: span 12;
  }

  .csc-preview,
  .csc-about-course {
    display: flex;
    flex-direction: column;
  }

  .csc-preview > div:first-child,
  .csc-about-course > div:first-child {
    order: 2;
  }

  .csc-preview > div:last-child {
    order: 1;
    min-height: 450px;
    background-position: center 20%;
  }

  .new-ss-faq > div:first-child {
    display: none;
  }

  .csc-banner {
    padding: 60px 120px;
  }
}

@media screen and (max-width: 768px) {
  .csc-video-popup-content {
    height: 50%;
  }
}

@media screen and (max-width: 580px) {
  .csc-video-popup {
    padding: 0 16px;
    align-items: flex-start;
  }

  .csc-video-popup-content {
    margin-top: 40%;
  }

  .csc-enable-video {
    width: 50px;
    height: 50px;
  }

  .csc-preview > div:last-child {
    min-height: 350px;
  }

  .csc-preview > div:first-child {
    padding: 32px 16px;
    gap: 24px;
  }

  .csc-preview > div:first-child br {
    display: none;
  }

  .csc-preview > div:first-child .f65 {
    font-size: 30px;
  }

  .csc-preview > div:first-child .f25 {
    font-size: 18px;
  }

  .csc-preview > div:first-child > .f20 {
    font-size: 15px;
  }

  .csc-preview > div:first-child .f-lh71-5,
  .csc-preview > div:first-child > .f-lh30,
  .csc-hands-on > div:first-child .f-lh54 {
    line-height: normal;
  }

  .csc-preview > div:first-child .f-lh31 {
    line-height: 27px;
  }

  .csc-preview > div:first-child > a {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 8px;
    box-sizing: border-box;
  }

  .csc-hands-on {
    display: flex;
    flex-direction: column;
  }

  .csc-hands-on > div:first-child {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 32px 16px 24px 16px;
  }

  .csc-hands-on > div:last-child > div {
    padding: 24px 16px;
  }

  .csc-img-info-bar .f-lh54 {
    line-height: 27px;
  }

  .csc-img-info-bar .f15 {
    font-size: 13px;
  }

  .csc-img-info-bar .f-lh27 {
    line-height: 19.5px;
  }

  .csc-img-info-bar > img {
    max-height: 46px;
  }

  .csc-about-course-title {
    padding: 32px 16px;
  }

  .csc-about-course-title .f-lh54 {
    line-height: normal;
  }

  .csc-about-course-list > li {
    padding: 24px 16px;
    align-items: flex-start;
  }

  .csc-about-course-list > li > img {
    position: relative;
    top: 3px;
  }

  .csc-about-course-list > li > a {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-sizing: border-box;
  }

  .csc-what-we-offer > div:last-child {
    padding: 16px;
  }

  .new-ss-offer-item .f-lh54 {
    line-height: normal;
  }

  .new-ss-offer-item br {
    display: none;
  }

  .new-ss-offer-item .f18 {
    font-size: 15px;
  }

  .new-ss-offer-item .f-lh27 {
    line-height: 22.5px;
  }

  .mobile-ss-offer-lists .new-ss-offer-item:first-child {
    padding: 0;
    overflow: inherit;
  }

  .csc-banner {
    padding: 32px 16px;
  }

  .csc-banner .f-lh54 {
    line-height: normal;
  }

  .csc-img-info-bar {
    align-items: flex-start;
  }

  .new-ss-offer-item-icon {
    padding: 16px;
  }

  .csc-about-course > div:last-child > picture {
    max-height: 360px;
  }

  .csc-about-course > div:last-child > picture > source {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .csc-who-is-this > div:last-child {
    display: none;
  }
}

@media screen and (max-width: 460px) {
  .csc-video-popup-content {
    height: 320px;
  }
}

@media screen and (max-width: 415px) {
  .new-ss-offer-item:first-child > div {
    flex-direction: column;
    align-items: flex-start !important;
  }
}

@media screen and (max-width: 390px) {
  .csc-video-info-bar {
    max-width: 280px;
  }

  .csc-video-popup-content {
    height: 310px !important;
  }
}

@media screen and (max-width: 375px) {
  .csc-img-info-bar {
    flex-direction: column;
    gap: 16px;
  }
}

@media screen and (max-width: 345px) {
  .csc-img-info-bar {
    gap: 8px;
  }

  .csc-img-info-bar .f30 {
    font-size: 18px !important;
  }

  .csc-img-info-bar .f15 {
    font-size: 12px !important;
  }

  .csc-img-info-bar > img {
    height: 40px;
  }
}