body {
  background: #c8c5c3;
}
#header {
  position: relative;
  margin: 0 auto;
  max-width: 1920px;
}

#header .inner {
  position: relative;
  margin: 0 auto;
}

#header .inner .tag {
  position: absolute;
  left: 0;
  top: 170px;
  background: url(/images/page-tag.png) no-repeat left center;
  width: 868px;
  height: 314px;
  z-index: 10;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

#header .inner .tag .txt {
  margin-left: 230px;
}
#header .inner .tag p {
  color: var(--point-color1);
  font-size: 20px;
  font-family: Roboto;
  font-weight: 700;
  letter-spacing: 0.1em;
}
#header .inner .tag h2 {
  font-size: 64px;
  font-family: Roboto;
  font-weight: 700;
  letter-spacing: 0.1em;
}
#header .inner .tag h3 {
  font-size: 36px;
  font-family: Roboto;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-left: 180px;
}

#header .inner .mokup {
  position: absolute;
  right: 0;
  top: 0;
  z-index: 0;
}

/* ======================================== */

#header .inner .play {
  position: absolute;
  right: 300px;
  top: 1100px;
  z-index: 10;
  margin-bottom: 20px;
  width: 460px;
  height: 550px;
}

#header .play .play-btn {
  position: absolute;
  border: none;
  background: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

#header .play .play-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-repeat: no-repeat;
  background-position: center center;
  background-size: contain;
  z-index: -1;
}

/* 버튼 1 */
#header .play .play-btn:nth-child(1) {
  top: 20px;
  right: 40px;
  width: 200px;
  height: 200px;
}
#header .play .play-btn:nth-child(1)::after {
  background-image: url(/images/video1.png);
  background-size: 150px 145px;
}

/* 버튼 2 */
#header .play .play-btn:nth-child(2) {
  top: 220px;
  left: 80px;
  width: 180px;
  height: 180px;
}
#header .play .play-btn:nth-child(2)::after {
  background-image: url(/images/video2.png);
  /* background-size: 150px 152px; */
}

/* 버튼 3 */
#header .play .play-btn:nth-child(3) {
  top: 380px;
  right: 20px;
  width: 190px;
  height: 190px;
}
#header .play .play-btn:nth-child(3)::after {
  background-image: url(/images/video3.png);
  background-size: 250px 250px;
}

#header .play .play-btn p {
  position: relative;
  z-index: 10;
  font-family: ShadowsIntoLight;
  font-size: 28px;
  color: #212121;
  margin: 0;
  display: inline-block; /* ::after의 width 기준을 텍스트 크기로 맞추기 위해 */
}

#header .play .play-btn p::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 1px; /* 텍스트 아래 간격 */
  width: 0;
  height: 2px;
  background: var(--point-color2);
  transition: width 0.4s ease;
}

#header .play .play-btn:hover p::after {
  width: 100%;
}

#header .play .play-btn img {
  position: relative;
  z-index: -10;
  width: 28px;
  height: auto;
}

#header .play .play-btn:hover::after {
  opacity: 0.8;
}

/* =============================== */
.video-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
}

.video-modal.show {
  display: flex;
}

.video-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
}

.video-modal-content {
  position: relative;
  width: 1000px;
  max-width: 90%;
  z-index: 1001;
}

.video-modal-content video {
  width: 100%;
  display: block;
  border-radius: 8px;
}

.video-modal-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: #fff;
  font-size: 28px;
  cursor: pointer;
}
/* =========================================== */

#header .inner .overview {
  position: absolute;
  left: 370px;
  top: 1058px;
  z-index: 0;
}

#header .inner .overview h2 {
  font-size: 48px;
  color: var(--point-color1);
  font-weight: 700;
  margin-bottom: 40px;
}
#header .inner .overview h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 50px;
  margin-right: 50px;
}
#header .inner .overview .ov-txt p {
  margin-bottom: 35px;
}

#header .inner .overview p {
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 20px;
}

#header .inner .overview .time {
  display: flex;
}
#header .inner .overview .make {
  display: flex;
}

#header .inner .overview .role {
  display: flex;
}
#header .inner .overview .role p {
  margin-left: 35px;
}

#header .inner .overview .tool {
  display: flex;
}
#header .inner .overview .tool-txt {
  margin-left: 10px;
}
#header .inner .overview .tool-txt p {
  font-size: 16px;
  margin-right: 20px;
}

#header .inner .overview .tool1,
#header .inner .overview .tool2 {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
}

#header .inner .overview .tool1 > div,
#header .inner .overview .tool2 > div {
  display: flex;
  align-items: center;
  justify-content: center;
}

#header .inner .overview .tool1 img,
#header .inner .overview .tool2 img {
  height: 30px;
  width: auto;
  display: block;
}

#header .inner .overview .tool-txt p {
  font-size: 16px;
  margin-right: 20px;
  line-height: 1;
  margin-top: 0;
  margin-bottom: 0;
}

#header .inner .concept {
  position: absolute;
  left: 370px;
  top: 1700px;
  z-index: 0;
}
#header .inner .concept h2 {
  font-size: 48px;
  color: var(--point-color1);
  font-weight: 700;
  margin-bottom: 40px;
}
#header .inner .concept h3 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 10px;
}

#header .inner .concept .visual {
  display: flex;
  gap: 40px;
}
#header .inner .concept .visual p {
  margin-top: 10px;
  font-weight: 400;
}

#header .inner .back {
  padding-top: 851px;
  display: flex;
  justify-content: center;
}

#header .inner span {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 1510px;
  background: #fff;
  width: 1400px;
  height: 3761px;
  z-index: -1;
}

#header .arrow3 {
  position: absolute;
  left: 520px;
  bottom: 270px;
  width: 280px;
  height: 130px;
  z-index: -2;
  transform: rotate(10deg);
}

/* ========================================== */
/* MAIN VIDEO */
/* ========================================== */

#container .inner .mainvideo {
  padding-top: 150px;
  width: 1180px;
  margin: 0 auto;
}

#container .inner .mainvideo .main-txt h2 {
  font-size: 48px;
  font-weight: 700;
  color: var(--point-color1);
  letter-spacing: 0.02em;
  margin-bottom: 40px;
}

#container .inner .mainvideo .main-txt p {
  font-size: 20px;
  line-height: 1.9;
  color: #333;
  margin-bottom: 60px;
}

#container .inner .mainvideo .main-txt p strong {
  color: var(--point-color1);
  font-weight: 700;
}

#container .inner .mainvideo .summer-spring,
#container .inner .mainvideo .autumn-winter {
  display: flex;
  gap: 16px;
  width: 1180px;
}

#container .inner .mainvideo .autumn-winter {
  margin-top: 60px;
}

#container .inner .mainvideo .summer,
#container .inner .mainvideo .spring,
#container .inner .mainvideo .autumn,
#container .inner .mainvideo .winter {
  width: 582px;
  display: flex;
  flex-direction: column;
  text-align: center;
}

#container .inner .mainvideo video {
  display: block;
  width: 582px;
  height: auto;
  background: #000;
}

#container .inner .mainvideo .summer p,
#container .inner .mainvideo .spring p,
#container .inner .mainvideo .autumn p,
#container .inner .mainvideo .winter p {
  margin-top: 24px;
  font-size: 20px;
  line-height: 1.6;
  color: #212121;
  text-align: center;
}

/* ========================================== */
/* INTRO VIDEO / ESG VIDEO (공통 구조) */
/* ========================================== */

#container .inner .introvideo,
#container .inner .esgvideo {
  padding-top: 150px;
  width: 1180px;
  margin: 0 auto;
}

#container .inner .introvideo h2,
#container .inner .esgvideo h2 {
  font-size: 48px;
  font-weight: 800;
  color: var(--point-color1);
  letter-spacing: 0.02em;
  margin-bottom: 40px;
}

#container .inner .introvideo .video-row,
#container .inner .esgvideo .video-row {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  width: 100%;
}

#container .inner .introvideo .video-img,
#container .inner .esgvideo .video-img {
  width: 590px;
  flex-shrink: 0;
}

#container .inner .introvideo .video-img img,
#container .inner .esgvideo .video-img img {
  display: block;
  width: 100%;
  height: auto;
}

#container .inner .introvideo .video-text,
#container .inner .esgvideo .video-text {
  width: 575px;
}

#container .inner .introvideo .video-text p,
#container .inner .esgvideo .video-text p {
  font-size: 20px;
  line-height: 1.8;
  color: #212121;
  text-align: left;
  margin-bottom: 24px;
}

#container .inner .introvideo .video-text p:last-child,
#container .inner .esgvideo .video-text p:last-child {
  margin-bottom: 0;
}

#container .inner .esgvideo .video-text p strong {
  color: var(--point-color1);
  font-weight: 700;
}

#container .inner .esgvideo .esg-bottom-text {
  margin-top: 40px;
  font-size: 20px;
  line-height: 1.8;
  color: #212121;
  text-align: left;
}

/* ========================================== */

#footer {
  position: relative;
  height: 5150px;
  margin-top: -4300px;
}

#footer .wrap {
  position: sticky;
  top: 700px;
  height: 800px;
}

#footer img {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0;
  align-items: center;
}

#footer .wrap .scr {
  position: relative;
  display: flex;
}

#footer .wrap .scr p {
  font-family: ShadowsIntoLight;
  font-size: 24px;
  color: #212121;
  position: absolute;
  top: 170px;
  left: 300px;
  z-index: 10;
}
#footer .wrap .scr img {
  position: absolute;
  left: 460px;
  top: 175px;
  z-index: 10;
}

#footer .wrap .scr p::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 199px;
  height: 96px;
  background: url(/images/line.png) no-repeat center center;
  z-index: -1;
  opacity: 0;
}

#footer .wrap .scr p:hover::before {
  opacity: 1;
}

#footer .inner {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 300px;
  z-index: 11;
  display: flex;
  justify-content: space-between;
  gap: 200px;
  font-family: Roboto;
  color: #212121;
  letter-spacing: 0.1em;
  font-size: 16px;
  max-width: 1400px;
  width: 100%;
  height: 450px;
}

#footer .contact {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  background: #2c2c2c;
  height: 500px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
#footer .contact h2 {
  color: var(--point-color1);
}
#footer .contact p {
  padding: 5px;
}
#footer .contact strong {
  font-weight: 500;
  padding-right: 20px;
}
#footer .contact .inn {
  padding-left: 10px;
}
#footer .contact .inn2 {
  padding-left: 10px;
}
#footer .contact .txtwrap {
  position: relative;
}

#footer .contact .copy {
  position: absolute;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  color: var(--gray-500);
  font-size: 14px;
}

/* =================================== */

#top-btn {
  position: fixed;
  right: 40px;
  bottom: 40px;
  width: 100px;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease;
}

#top-btn.show {
  opacity: 1;
  visibility: visible;
}

#top-btn img {
  width: 100%;
  height: auto;
  display: block;
}

#top-btn:hover {
  opacity: 0.8;
}