@charset "utf-8";

.sec-1{
  margin-bottom: 4rem;
}

/* sec 2 */
.sec-2,
.sec-3 {
  padding: 8.5rem 20px;
  background: #fafafa;
}

.sec-2-wrap {
  display: flex;
  justify-content: space-between;
  gap: 30px;
}

.sec-2 .left {
  width: 28%;
}

.sec-2 .left,
.sec-3 .left {
  position: sticky;
  top: 10rem;
  align-self: flex-start;
}

.sec-2 .left h2,
.sec-3 .left h2 {
  font-size: 3rem;
  font-weight: 500;
  line-height: 1.3;
  margin-top: 10px;
  margin-bottom: 5px;
}

.sec-2 .left p,
.sec-3 .left p {
  color: #666;
  line-height: 1.4;
}

.sec-2 .right {
  width: 60%;
}

.sec-2 .right .img_banner {
  width: 100%;
  background: url(../img/introduction/bg_2.png) center no-repeat;
  box-sizing: border-box;
  padding: 30px;
  border-radius: 20px;
  color: #fff;
  display: flex;
  flex-direction: column;
  gap: 6rem;
}

.sec-2 .right .img_banner .text h3 {
  font-size: 2.6rem;
  font-weight: 700;
  margin-bottom: 5px;
  text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.1);
}

.sec-2 .right .img_banner .text .sub_text {
  display: flex;
  align-items: center;
  gap: 5px 10px;
  font-size: 18px;
  text-shadow: 2px 2px 1px rgba(0, 0, 0, 0.1);
}

.sec-2 .right .img_banner .text .sub_text .line {
  width: 1px;
  height: 15px;
  background: #fff;
}

.sec-2 .right .img_banner .bot a {
  padding: 15px 35px;
  padding-right: 38px;
  background: linear-gradient(to right, rgba(255, 39, 158, 1) -20%, rgba(255, 83, 86, 1) 50%, rgba(255, 139, 38, 1) 105%);
  ;
}

.sec-2 .right .text_grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4.5rem;
  margin-top: 30px;
}

.sec-2 .right .text_grid .grid {
  width: 38%;
}

.sec-2 .right .text_grid .grid_1,
.sec-2 .right .text_grid .grid_3 {
  width: 48%;
}

.sec-2 .right .text_grid .grid h4 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}

/* sec 3 */
.sec-3 {
  background: #fff;
}

.sec-3-wrap {
  display: flex;
  justify-content: space-between;
  gap: 30px;
}

.sec-3 .left {
  width: 28%;
}

.sec-3 .right {
  width: 60%;
}

.sec-3 .right .info-cards {
  width: 100%;
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

.sec-3 .right .info-cards .card {
  width: calc(50% - 7.5px);
  background: #fff;
  padding: 25px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 30px;
  border-radius: 15px;
  justify-content: space-between;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.05);
}

.sec-3 .right .info-cards .card .text {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sec-3 .right .info-cards .card .text h3 {
  font-weight: 600;
}

.sec-3 .right .info-cards .channel-symbol {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

/* sec 4 */
.sec-4 {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  /* box-sizing: border-box; */
  padding: 7rem 20px;
}

.sec-4 strong {
  font-weight: normal;
  font-weight: 700;
}

.sec-4 .card {
  width: calc(50% - 10px);
  box-sizing: border-box;
  padding: 40px;
  padding-bottom: 0;
  border-radius: 25px;
  background: #fafafa;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.sec-4 .card h2 {
  font-size: 34px;
  margin-bottom: 10px;
  line-height: 1;
}

.sec-4 .card span {
  font-size: 18px;
}

.sec-4 .card .btn {
  margin-top: 20px;
  padding-left: 38px;
  padding-right: 35px;
  gap: 2px;
}

.sec-4 .card .btn.channel_btn {
  color: var(--po-color);
  background: #fff;
  font-weight: 500;
}

.sec-4 .card .btn.channel_btn svg * {
  fill: var(--po-color);
}


.sec-4 .card .bot {
  text-align: right;
}

.sec-4 .card .bot img {
  width: 100%;
}

.sec-4 .top_sub::after {
  width: 14vw;
}

.sec-4 .left.card {
  background: var(--gradi);
}

.sec-4 .left.card,
.sec-4 .left.card .top_sub {
  color: #fff;
}

.sec-4 .card .top_sub {
  font-size: 18px;
  font-weight: 300;
  display: block;
  margin-bottom: 10px;
}

.sec-4 .left.card .top_sub::after {
  background: #fff;
}


@media (max-width:1024px) {
  .sec-1>.bot {
    gap: 4rem;
  }
  
  .sec-2 .br,
  .sec-3 .br {
    display: inline;
  }

  .sec-2-wrap,
  .sec-3-wrap {
    flex-direction: column;
  }

  .sec-2 .left,
  .sec-3 .left {
    position: static;
    width: 100%;
  }

  .sec-2 .right,
  .sec-3 .right {
    width: 100%;
  }

  .sec-4 .card {
    padding: 30px;
    padding-bottom: 0;
  }

  .sec-4 .card h2 {
    font-size: 28px;
  }
}

@media (max-width:775px) {
  .sec-4 {
    flex-direction: column;
  }

  .sec-4 .card {
    width: 100%;
  }
}

@media (max-width:500px) {


  .sec-1 .mid>.text .br {
    display: inline;
  }

  .sec-1 .mid {
    gap: 25px;
    padding: 4rem 1rem;
  }

  .sec-1 .mid>.text h3 {
    font-size: 28px;
  }

  .sec-1 .mid>.text p {
    font-size: 16px;
  }

  .sec-1>.bot {
    flex-wrap: wrap;
    padding: 0 20px;
    gap: 2rem;
  }

  .sec-1>.bot .line {
    width: 60%;
    height: 1px;
  }

  .sec-1>.bot .left,
  .sec-1>.bot .right {
    width: 100%;
  }

  .sec-2 .right .img_banner {
    padding: 25px;
  }

  .sec-2 .right .img_banner .text .sub_text {
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.1);
  }

  .sec-2 .right .text_grid,
  .sec-3 .right .info-cards {
    flex-direction: column;
  }

  .sec-2 .right .text_grid .grid,
  .sec-3 .right .info-cards .card {
    width: 100% !important;
  }

  .sec-2 .right .img_banner .text .sub_text {
    flex-wrap: wrap;
  }

  .sec-2,
  .sec-3 {
    padding: 4.5rem 20px;
  }

  .sec-2 .left h2,
  .sec-3 .left h2 {
    font-size: 2.2rem;
  }

  .sec-4 {
    padding: 2rem 20px;
  }

  .sec-4 .card {
    padding: 25px;
    padding-bottom: 0;
    gap: 30px;
  }

  .sec-4 .card .top_sub,
  .sec-4 .card span {
    font-size: 14px;
  }

  .sec-4 .card h2 {
    font-size: 22px;
  }

  .sec-4 .card .btn {
    width: 100%;
  }


}