.main{
  position: relative;
  font-size: 0;
}
.main video{
  width: 100%;
}
.play-pause-btn {
  position: absolute;
  bottom: 10%;
  right: 10%;
  transform: translate(-50%, -50%);
  width: 3vw;
  height: 3vw;
  background-color: transparent;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
}
/* 기본 회색 테두리 */
.progress-ring {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: rotate(-90deg); /* 12시 방향부터 시작 */
}
.progress-ring-circle {
  fill: transparent;
  stroke: #f3f3f3;
  stroke-width: 1.5;
  stroke-dasharray: 0 0; /* 초기값 */
  transition: stroke-dasharray 0.3s linear;
}
/* 진행도 표시 초록색 테두리 */
.progress-ring-progress {
  fill: transparent;
  stroke: #02c65a; /* 초록색 */
  stroke-width: 1.5;
  stroke-dasharray: 0 0; /* 초기값 */
  stroke-linecap: round;
  transition: stroke-dasharray 0.3s linear;
}
/* 플레이/일시정지 아이콘 */
.play-pause-btn::before {
  content: '\25B6';
  font-size: 1vw;
  color: #02c65a;
  margin-left: 0.2vw;
  z-index: 10;
  position: relative;
}
.play-pause-btn.playing::before {
  content: '\275A\275A';
  font-size: 1vw;
  letter-spacing: -0.1vw;
  margin-left: 0;
}

.main_txt{
  position: absolute;
  left: 15%;
  bottom: 10%;
}
.main_txt .line{
  margin: 30px 0;
  width: 56px;
  height: 5px;
  background-color: #02c65a;
}

/* main_section1 */
.main_section1{
  padding: 105px 0 125px;
}
.ms_title{
  gap: 10px 0;
}
.ms1_con{
  margin-top: 100px;
}
.ms1_slide_box li{
  border-radius: 10px;
  width: 25%;
  padding: 6vw 0 5vw;
  transition: all .8s;
}
.ms1_slide_box li .txt_box{
  padding: 0 1vw 0 2vw;
}
.ms1_slide_box p{
  color: #111;
}
.ms1_slide_box .txt2{
  margin-top: 10px;
}
.ms1_slide_box .line{ 
  width: 2vw;
  height: 3px;
  background-color: #111;
  margin: 40px 0;
}
.ms1_slide_box .mv_btn{
  margin-top: 30px;
  border-radius: 50px;
  border: 1px solid #111;
  width: 5vw;
  height: 1.5vw;
}
.ms1_slide_box li:hover {
  background-color: #02c65a;
}
.ms1_slide_box li:hover p{
  color: #fff;
}
.ms1_slide_box li:hover .line{
  background-color: #fff;
}
.ms1_slide_box li:hover .mv_btn{
  border: 1px solid #fff;
}

/* main_section2 */
.main_section2{
  height: 935px;
  background-color: #02c65a;
}
.ms2_txt{
  gap: 30px 0;
  height: 100%;
}
.ms2_tag {
  gap: 0 15px;
}
.ms2_tag p{
  border: 1px solid #ffffff;
  box-sizing: border-box;
  border-radius: 50px;
  padding: 11px 15px;
}
.main_section2 .center2{
  position: relative;
  height: 100%;
}
.ms2_img .imgs {
  position: absolute;
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 1.2s ease, transform 1.2s ease;
}
.ms2_img.active .imgs {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.3s;
}
.ms2_img.active .img2 {
  opacity: 1;
  transform: translateY(-50%);
  transition-delay: 0.5s;
}
.ms2_img.active .img3 {
  opacity: 1;
  transform: translateY(2%);
  transition-delay: 0.8s;
}
@keyframes imgFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.ms2_img .img1 { 
  top: 0; 
  left: -10%; 
}
.ms2_img .img2 { 
  top: 50%; 
  right: -15%;
}
.ms2_img .img3 { 
  bottom: 0;
  left: 0;
}
.ms2_cc{
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%); 
  z-index: -1;
}
.ms2_cc img{
  animation: circle 10s linear infinite;
}
@keyframes circle {
  0% {
  transform: rotate(0);
    }
  100% {
    transform: rotate(360deg);
  }
}

/* main_section3 */
.main_section3{
  background-image: url(../img/ms3_bg.webp);
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  padding: 175px 0 180px;
}
.ms3_con{
  margin-top: 130px;
}
.ms3_img{
  position: relative;
  width: 45%;
}
.ms3_img .img2{
  position: absolute;
  right: -10%;
  bottom: -20%;
}
.ms3_txt{
  width: 55%;
}
.ms3_txt ul{
  width: 60%;
}
.ms3_txt li{
  padding: 45px 0;
  border-bottom: 1px solid #c2c2c2;
}
.ms3_txt .list1{
  align-items: center;
}
.ms3_txt .list2{
  align-items: stretch;
}
.ms3_txt .year{
  width: 30%;
}
.ms3_txt .txts{
  gap: 30px 0;
}

/* main_section4 */
.main_section4{
  background-image: url(../img/ms4_bg.webp);
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  padding: 256px 0;
}
.main_section4 .center2{
  gap: 35px 0;
}

/* main_section5 */
.main_section5{
  padding: 175px 0 145px;
  background-color: #f5f5f5;
  border-bottom: 1px solid #e1e1e1;
}
.ms5_con1{
  margin-top: 100px;
  gap: 2.5vw;
  height: 32vw;
  overflow-y: scroll;
}
.ms5_con1 li{
  width: 21%;
  position: relative;
}
.ms5_con1 .img_box{
  width: 100%;
  height: 100%;
}
.ms5_con1 .img_box img{
  width: 100%;
  height: 100%;
}
.ms5_con1 .txt_box{
  border-radius: 10px;
  overflow: hidden;
  position: absolute;
  z-index: 1;
  top: 0;
	left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(2,198,90,.6);
  opacity: 0;
  transition:opacity .2s ease-out;
  -webkit-transition:opacity .2s ease-out;
  -moz-transition:opacity .2s ease-out;
  box-sizing: border-box;
}
.ms5_con1 li:hover .txt_box{
  opacity: 1;
}
.ms5_con1 .txt_box .txts{
  gap: 5px 0;
  position: absolute;
  left: 5%;
  bottom: 5%;
}
.ms5_con1::-webkit-scrollbar {
  width: 7px;
}
.ms5_con1::-webkit-scrollbar-track {
  background: #e1e1e1;
  border-radius: 10px;
}
.ms5_con1::-webkit-scrollbar-thumb {
  background: #02c65a;
  border-radius: 10px;
}
.ms5_con2{
  margin-top: 90px;
  gap: 50px 0;
}
.ms5_con2 .mv_btn{
  background-color: #02c65a;
  padding: 11px 29px;
  border-radius: 50px;
}

/* main_section6 */
.main_section6{
  padding: 160px 0 130px;
}
.ms6_title{
  gap: 10px 0;
}
.ms6_con{
  margin-top: 70px;
}
.swiper-container {
  position: relative; 
  overflow: hidden;
}
.swiper-container .swiper-wrapper {
  transition-timing-function: linear !important; 
  position: relative;
}
.swiper-container .swiper-slide {
  width: auto; 
  padding: 40px;
}

/* main_section7 */
.main_section7{
  background-image: url(../img/ms7_bg.webp);
  padding: 54px 0;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}
.ms7_title{
  gap: 25px 0;
}
.ms7_sec{
  width: 40%;
}
.ms7_form{
  gap: 40px 0;
}
.ms7_form li{
  width: 100%;
}
.ms7_form li.input_wrap{
  gap: 20px 0;
}
.ms7_form .input_box input,
.ms7_form .input_box textarea{
  width: 100%;
  border-radius: 10px;
  padding: 15px 20px;
}
.ms7_form .input_box input::placeholder,
.ms7_form .input_box textarea::placeholder{
  color: #9a9a9a;
  font-size: 16px;
  font-family: 'Pretendard-Medium';
  src: url('https://cdn.jsdelivr.net/gh/Project-Noonnu/noonfonts_2107@1.1/Pretendard-Medium.woff') format('woff');
  font-weight: 500;
  font-style: normal;
}
.ms7_form .input_box textarea{
  padding: 15px 20px 150px;
}
.ms7_form .check_box {
  gap: 0 10px;
}
.ms7_form .check_box input {
  accent-color: #02c65a;
  width: 20px;
  height: 20px;
}
.ms7_form .agree_box p{
  text-decoration: underline;
  text-underline-position: under;
}
.ms7_submit{
  margin-top: 40px;
}
.ms7_submit input{
  padding: 22px 0;
  background-color: #02c65a;
  border-radius: 10px;
  border: 0;
  width: 100%;
}

/* mobile */
@media screen and (max-width: 767px){ 
  .main {
    height: 750px;
  }
  .main video {
    height: 100%;
    object-fit: cover;
  }
  .main_txt{
    left: 5%;
  }
  .main_txt .line{
    margin: 15px 0;
    width: 30px;
    height: 2px;
  }
  .play-pause-btn{
    width: 8vw;
    height: 8vw;
    bottom: 5%;
    right: 5%;
  }
  .play-pause-btn::before,
  .play-pause-btn.playing::before{
    font-size: 3vw;
  }

  /* main_section1 */
  .main_section1 {
    padding: 100px 0;
  }
  .ms1_con {
    margin-top: 50px;
  }
  .ms1_slide_box{
    flex-wrap: wrap;
    justify-content: space-between;
  }
  .ms1_slide_box li{
    width: 48%;
  }
  .ms1_slide_box .line{
    width: 5vw;
    height: 2px;
    margin: 20px 0;
  }
  .ms1_slide_box .mv_btn{
    width: 20vw;
    height: 6.5vw;
  }

  /* main_section2 */
  .main_section2 {
    height: 680px;
  }
  .main_section2 .center2{
    flex-direction: column;
    display: flex;
    gap: 30px 0;
    align-items: center;
    justify-content: center;
  }
  .ms2_txt{
    height: unset;
    gap: 15px 0;
  }
  .ms2_tag p{
    padding: 10px;
   }
  .ms2_img {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 20px 0;
  }
  .ms2_img .imgs{
    position: unset;
    transform: unset !important;
    width: 48%;
  }
  .ms2_img.active .img2{
    position: relative;
    top: unset;
    right: unset;
    z-index: 1;
  }
  .ms2_img .imgs img{
    width: 100%;
  }

  /* main_section3 */
  .main_section3{
    padding: 100px 0;
  }
  .ms3_con{
    flex-direction: column;
    gap: 60px 0;
    margin-top: 70px;
  }
  .ms3_img{
    width: 100%;
  }
  .ms3_img .img2 {
    right: -3%;
    bottom: -15%;
  }
  .ms3_con .imgs img{
    width: 100%;
  }
  .ms3_txt{
    width: 100%;
  }
  .ms3_txt ul {
    width: 100%;
  }
  .ms3_txt li {
    padding: 20px 0;
  }
  .ms3_txt .year {
    width: 25%;
  }

  /* main_section4 */
  .main_section4{
    padding: 120px 0;
  }
  .main_section4 .center2 {
    gap: 20px 0;
  }
  
  /* main_section5 */
  .main_section5{
    padding: 100px 0;
  }
  .ms5_con1{
    margin-top: 50px;
    height: 60vw;
  }
  .ms5_con1 li {
    width: 48%;
  }
  .ms5_con2 {
    margin-top: 50px;
    gap: 25px 0;
  }

  /* main_section6 */
  .main_section6{
    padding: 100px 0;
  }
  .ms6_con {
    margin-top: 35px;
  }
  .swiper-container .swiper-slide{
    padding: 20px;
  }

  /* main_section7 */
  .ms7_con{
    flex-direction: column;
    gap: 50px 0;
  }
  .ms7_title{
    gap: 10px 0;
    width: 100%;
  }
  .ms7_sec {
    width: 100%;
  }
  .ms7_form {
    gap: 25px 0;
  }
  .ms7_form li.input_wrap {
    gap: 10px 0;
  }
  .ms7_form .input_box input{
    padding: 10px 15px;
  }
  .ms7_form .input_box textarea{
    padding: 10px 15px 100px;
  }
  .ms7_form .input_box input::placeholder, 
  .ms7_form .input_box textarea::placeholder{
    font-size: 12px;
  }
  .ms7_form .check_box input{
    width: 15px;
    height: 15px;
  }
  .ms7_submit input {
    padding: 14px 0;
  }

}
/* tablet */
@media screen and (min-width: 768px) and (max-width: 1024px){
  /* main */
  .main_txt{
    left: 10%;
  }
   .play-pause-btn{
    width: 5vw;
    height: 5vw;
  }
  .play-pause-btn::before,
  .play-pause-btn.playing::before{
    font-size: 2vw;
  }

  /* main_section1 */
  .main_section1 {
    padding: 100px 0;
  }
  .ms1_con {
    margin-top: 60px;
  }
  .ms1_slide_box .line{
    width: 5vw;
    height: 2px;
    margin: 20px 0;
  }
  .ms1_slide_box .mv_btn{
    width: 10vw;
    height: 3.5vw;
  }

  /* main_section2 */
  .main_section2 {
    height: 750px;
  }
  .main_section2 .center2{
    flex-direction: column;
    display: flex;
    gap: 40px 0;
    align-items: center;
    justify-content: center;
  }
  .ms2_txt{
    height: unset;
    gap: 20px 0;
  }
  .ms2_img {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 30px 0;
  }
  .ms2_img .imgs{
    position: unset;
    transform: unset !important;
    width: 32%;
  }
  .ms2_img.active .img2{
    position: relative;
    top: unset;
    right: unset;
    z-index: 1;
  }
  .ms2_img .imgs img{
    width: 100%;
  }

  /* main_section3 */
  .main_section3{
    padding: 100px 0;
  }
  .ms3_con{
    flex-direction: column;
    gap: 70px 0;
    margin-top: 80px;
  }
  .ms3_img{
    width: 100%;
  }
  .ms3_img .img2 {
    right: -3%;
    bottom: -15%;
  }
  .ms3_con .imgs img{
    width: 100%;
  }
  .ms3_txt{
    width: 100%;
  }
  .ms3_txt ul {
    width: 80%;
  }
  .ms3_txt li {
    padding: 25px 0;
  }
  .ms3_txt .year {
    width: 30%;
  }

  /* main_section4 */
  .main_section4{
    padding: 120px 0;
  }
  .main_section4 .center2 {
    gap: 25px 0;
  }

  /* main_section5 */
  .main_section5{
    padding: 100px 0;
  }
  .ms5_con1{
    margin-top: 60px;
  }
  .ms5_con2 {
    margin-top: 55px;
    gap: 30px 0;
  }

  /* main_section6 */
  .main_section6{
    padding: 100px 0;
  }
  .ms6_con {
    margin-top: 40px;
  }
  .swiper-container .swiper-slide{
    padding: 30px;
  }

  
  /* main_section7 */
  .ms7_con{
    flex-direction: column;
    gap: 60px 0;
  }
  .ms7_title{
    gap: 20px 0;
    width: 100%;
  }
  .ms7_sec {
    width: 100%;
  }
  .ms7_form {
    gap: 30px 0;
  }
  .ms7_form li.input_wrap {
    gap: 15px 0;
  }
  .ms7_form .input_box input::placeholder, 
  .ms7_form .input_box textarea::placeholder{
    font-size: clamp(16px, calc(16px + 0vw), 16px);
  }
  .ms7_form .check_box input{
    width: 18px;
    height: 18px;
  }
  .ms7_submit input {
    padding: 18px 0;
  }


}