#top_btn {
   display: none;
}

#core3v_section {
   position: relative;
   height: 520vh;
}

.core3v_sticky {
   position: sticky;
   top: 0;
   width: 100%;
   height: 100vh;
   overflow: hidden;
   background: var(--color-bg-base);
}

/* ==============================
   공통 inner
============================== */
.core3v_inner {
   position: relative;
   width: 1720px;
   max-width: calc(100% - 200px);
   height: 100%;
   margin: 0 auto;
   padding-top: 80px;
   padding-bottom: 60px;
   box-sizing: border-box;
}

/* ==============================
   BG 이미지
============================== */
.core3v_bg {
   position: absolute;
   inset: 0;
   z-index: 1;
   overflow: hidden;
}

.core3v_bg_item {
   position: absolute;
   inset: 0;
   background-position: center;
   background-size: cover;
   background-repeat: no-repeat;
   clip-path: inset(0 0 0 100%);
}

.bg_vision {
   background:
      linear-gradient(rgba(0, 0, 0, .35), rgba(0, 0, 0, .35)),
      url("../company/img/management-philosophy/VISION.png");
   background-size: cover;
   background-position: center center;
   background-repeat: no-repeat;
}

.bg_value {
   background:
      linear-gradient(rgba(0, 0, 0, .35), rgba(0, 0, 0, .35)),
      url("../company/img/management-philosophy/VALUE.png");
   background-size: cover;
   background-position: 45% center;
   background-repeat: no-repeat;
}

.bg_vow {
   background:
      linear-gradient(rgba(0, 0, 0, .38), rgba(0, 0, 0, .38)),
      url("../company/img/management-philosophy/VOW.png");
   background-size: cover;
   background-position: center center;
   background-repeat: no-repeat;
}

/* ==============================
   콘텐츠
============================== */
.core3v_content {
   position: absolute;
   inset: 0;
   z-index: 2;
   background: var(--color-bg-base);
}

/* CORE 구간 텍스트 */
.scene_core {
   color: var(--color-text-primary);
}

/* 이미지 구간 텍스트 */
.scene_vision,
.scene_value,
.scene_vow {
   color: var(--color-text-light);
}

.core3v_title,
.core3v_copy p {
   color: currentColor;
}

/* 메뉴는 따로 제어 */
.core3v_menu {
   color: var(--color-text-primary);
}

/* 장면 공통 */
.core3v_scene {
   position: absolute;
   inset: 0;
   visibility: hidden;
   opacity: 0;
}

.core3v_title_wrap {
   position: absolute;
   left: 0;
   bottom: 60px;
   overflow: hidden;
   z-index: 4;
}

.core3v_title {
   font-size: 170px;
   font-weight: 800;
   line-height: .95;
   letter-spacing: -0.02em;
   color: currentColor;
}

.core3v_title span {
   display: block;
}

.core3v_copy {
   position: absolute;
   right: 0;
   bottom: 60px;
   z-index: 4;
   overflow: hidden;
}

.core3v_copy p {
   font-size: 56px;
   font-weight: 700;
   line-height: 1.45;
   letter-spacing: -0.025em;
   color: currentColor;
}

.core3v_content .core3v_title,
.core3v_content .core3v_copy p {
   text-shadow:
      0 4px 18px rgba(0, 0, 0, 4%),
      0 1px 4px rgba(0, 0, 0, 4%);
}

/* ==============================
   고정 메뉴
============================== */
.core3v_menu {
   position: absolute;
   top: 95px;
   right: 0;
   color: currentColor;
   text-align: right;
   z-index: 10;
   visibility: hidden;
   opacity: 0;
}

.core3v_menu p {
   font-size: 24px;
   font-weight: 400;
   letter-spacing: 0;
   margin-bottom: 32px;
   opacity: .80;
}

.core3v_menu span {
   display: block;
   width: 40px;
   height: 2px;
   margin-left: auto;
   margin-bottom: 32px;
   background: currentColor;
   opacity: .30;
}

.core3v_menu ul {
   display: flex;
   flex-direction: column;
   gap: 24px;
}

.core3v_menu li {
   font-size: 24px;
   font-weight: 400;
   opacity: .60;

   cursor: pointer;
}

/* ==============================
   3V 인트로
============================== */
:root {
   --core3v-gap: clamp(24px, 4.16vw, 100px);
}

.core3v_intro {
   position: absolute;
   inset: 0;
   z-index: 10;
   overflow: hidden;
}

.core3v_intro_visual {
   position: absolute;
   top: var(--core3v-gap);
   right: var(--core3v-gap);
   bottom: var(--core3v-gap);
   left: var(--core3v-gap);
   overflow: hidden;
   background: transparent;
}

.core3v_panel {
   position: absolute;
   top: 0;
   width: 50%;
   height: 100%;
   overflow: hidden;
   background: none;
   z-index: 1;
}

.core3v_panel_left {
   left: 0;
}

.core3v_panel_right {
   right: 0;
}

/* 영상 */
.core3v_intro_video {
   position: absolute;
   top: 0;
   width: 200%;
   height: 100%;
   object-fit: cover;
   display: block;
}

/* 왼쪽 패널은 영상의 왼쪽 절반 */
.core3v_panel_left .core3v_intro_video {
   left: 0;
}

/* 오른쪽 패널은 영상의 오른쪽 절반 */
.core3v_panel_right .core3v_intro_video {
   right: 0;
}

/* 어두운 오버레이: 패널 안에서 같이 움직이게 */
.core3v_panel::after {
   content: "";
   position: absolute;
   inset: 0;
   background: rgba(0, 0, 0, .10);
   z-index: 2;
   pointer-events: none;
}

/* 3V 텍스트는 영상 위 */
.core3v_intro_title {
   position: absolute;
   left: 50%;
   top: 50%;
   transform: translate(-50%, -50%);
   display: block;
   font-size: 180px;
   font-weight: 800;
   color: var(--color-text-light);
   z-index: 3;

   text-shadow:
      0 4px 18px rgba(0, 0, 0, 0.2),
      0 1px 4px rgba(0, 0, 0, 0.16);
}






/* ==============================
   Philosophy Section
============================== */
#philosophy_section {
   position: relative;
   height: 290vh;
   background: var(--color-bg-base);
}

.philosophy_sticky {
   position: sticky;
   top: 0;
   width: 100%;
   height: 100vh;
   overflow: hidden;
   background: var(--color-bg-base);
}

/* 초기 슬로건 */
.philosophy_intro {
   position: absolute;
   left: 50%;
   top: 25%;
   transform: translateX(-50%);
   z-index: 4;
   text-align: center;
}

.philosophy_typo {
   position: relative;
   display: inline-block;
   font-size: 72px;
   font-weight: 700;
   line-height: 1.35;
   letter-spacing: -0.04em;
   text-align: center;
}

.philosophy_typo .typo_line {
   position: relative;
   display: block;
   width: max-content;
   margin: 0 auto;
}

.philosophy_typo .typo_base {
   display: block;
   color: var(--color-text-reveal-base);
}

.philosophy_typo .typo_fill {
   position: absolute;
   left: 0;
   top: 0;
   display: block;
   color: var(--color-text-primary);
   clip-path: inset(0 100% 0 0);
}

/* 움직이는 이미지 */
.philosophy_visual {
   position: absolute;
   left: 50%;
   top: 80%;
   width: clamp(360px, 32vw, 560px);
   aspect-ratio: 1.7 / 1;
   overflow: hidden;
   z-index: 5;
   will-change: left, top, width, height, transform;
}

.philosophy_visual img {
   width: 100%;
   height: 100%;
   object-fit: cover;
   display: block;
}

/* 이미지 위 불투명도 오버레이 */
.philosophy_visual {
   --visualOverlay: 0.06;
}

.philosophy_visual::after {
   content: "";
   position: absolute;
   inset: 0;
   background: rgba(25, 25, 25, var(--visualOverlay));
   z-index: 2;
   pointer-events: none;
}

/* 풀 이미지 위 타이틀 */
.philosophy_overlay_title {
   position: absolute;
   left: 50%;
   top: 50%;
   z-index: 6;
   font-size: 120px;
   font-weight: 800;
   letter-spacing: -0.02em;
   color: var(--color-text-light);
   opacity: 0;
   visibility: hidden;
   text-shadow:
      0 4px 18px rgba(0, 0, 0, 0.2),
      0 1px 4px rgba(0, 0, 0, 0.16);
}

/* 최종 콘텐츠 */
.philosophy_final {
   position: absolute;
   inset: 0;
   z-index: 2;
   opacity: 0;
   visibility: hidden;
}

.philosophy_inner {
   position: relative;
   width: min(1500px, calc(100% - 160px));
   max-width: none;
   height: 100%;
   margin: 0 auto;
   display: grid;
   grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
   column-gap: clamp(80px, 8vw, 150px);
   align-items: center;
   box-sizing: border-box;
}

.philosophy_left {
   position: relative;
   height: 60vh;
   display: block;
}

.philosophy_title_box {
   position: absolute;
   left: 0;
   top: 0;
}

.philosophy_img_target {
   position: absolute;
   left: 0;
   bottom: -40px;
   width: 100%;
   max-width: 100%;
   aspect-ratio: 1.7 / 1;
}

.philosophy_title_box span {
   display: block;
   margin-bottom: 18px;
   font-size: 16px;
   font-weight: 400;
   letter-spacing: 0.08em;
   color: var(--color-brand);
}

.philosophy_title_box h2 {
   font-size: 64px;
   font-weight: 700;
   color: var(--color-text-primary);
   margin-bottom: 32px;
}

.philosophy_title_box p {
   font-size: 18px;
   font-weight: 400;
   line-height: 1.25;
   color: var(--color-text-secondary);
}

.philosophy_right {
   height: auto;
   display: flex;
   flex-direction: column;
   gap: 0;
}

.philosophy_item {
   position: relative;
   min-height: 200px;
   padding: 40px 0;
   box-sizing: border-box;
}

.philosophy_text {
   position: relative;
   z-index: 2;
   padding-right: 180px;
}

.philosophy_text h3 {
   font-size: 24px;
   font-weight: 600;
   color: var(--color-text-primary);
   margin-bottom: 40px;
}

.philosophy_text p {
   font-size: 18px;
   font-weight: 400;
   line-height: 1.45;
   color: var(--color-text-secondary);
}

.philosophy_text p+p {
   margin-top: 20px;
}

.philosophy_hanja {
   position: absolute;
   right: 0;
   top: 50%;
   transform: translateY(-50%);
   height: 160px;
   width: auto;
   pointer-events: none;
   user-select: none;
   z-index: 1;
}













/*------------------------------------
   Responsive
------------------------------------*/
@media (max-width: 1400px) {}




/*------------------------------------
   탭 버전
------------------------------------*/
@media screen and (min-width: 600px) and (max-width: 1024px) {
   #core3v_section {
      height: 620svh;
   }

   .core3v_sticky,
   .philosophy_sticky {
      height: 100dvh;
   }

   .core3v_inner {
      width: calc(100% - 48px);
      max-width: none;
      padding-top: 70px;
      padding-bottom: 52px;
   }

   :root {
      --core3v-gap: 24px;
   }

   .core3v_intro_visual {
      position: absolute;
      top: 76px;
      right: 32px;
      bottom: max(40px, env(safe-area-inset-bottom));
      left: 32px;
      overflow: hidden;
      background: transparent;
   }

   .core3v_intro_title {
      font-size: clamp(120px, 20vw, 180px);
   }

   .core3v_menu {
      top: 100px;
      right: 0;
   }

   .core3v_menu p {
      margin-bottom: 24px;
      font-size: 15px;
   }

   .core3v_menu span {
      width: 32px;
      margin-bottom: 10px;
   }

   .core3v_menu ul {
      gap: 0px;
   }

   .core3v_menu li {
      font-size: 15px;
      padding: 14px 0 14px 24px;
   }

   .core3v_scene {
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      align-items: flex-start;
      gap: 20px;

      padding-bottom: 60px;
      box-sizing: border-box;
   }

   .core3v_title_wrap {
      position: relative;
      left: auto;
      right: auto;
      top: auto;
      bottom: auto;
      transform: none;
   }

   .core3v_title {
      font-size: clamp(88px, 11.5vw, 120px);
      line-height: .98;
   }

   .core3v_copy {
      position: relative;
      left: 1%;
      right: auto;
      top: auto;
      bottom: auto;
      max-width: 100%;
   }

   .core3v_copy p {
      font-size: clamp(28px, 3.7vw, 38px);
      line-height: 1.45;
      font-weight: 600;
   }

   .bg_vision {
      background-position: 45% center;
   }

   .bg_value {
      background-position: center center;
   }

   .bg_vow {
      background-position: 48% center;
   }

   #philosophy_section {
      height: 390svh;
   }

   .philosophy_intro {
      top: 28%;
      width: calc(100% - 48px);
   }

   .philosophy_typo {
      font-size: clamp(42px, 7.2vw, 72px);
      line-height: 1.38;
   }

   .philosophy_visual {
      width: clamp(320px, 54vw, 520px);
      top: 60%;
   }

   .philosophy_overlay_title {
      font-size: clamp(64px, 12vw, 110px);
   }

   .philosophy_inner {
      width: calc(100% - 48px);
      max-width: none;
      height: 100%;
      grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
      column-gap: clamp(28px, 4.5vw, 44px);
      align-items: center;
      padding: clamp(72px, 9dvh, 104px) 0 clamp(28px, 4dvh, 44px);
   }

   .philosophy_left {
      min-width: 0;
      height: auto;
      display: flex;
      flex-direction: column;
      align-self: center;
   }

   .philosophy_title_box {
      position: relative;
      left: auto;
      top: auto;
   }

   .philosophy_img_target {
      position: relative;
      left: auto;
      bottom: auto;
      aspect-ratio: 1.55 / 1;
      margin-top: clamp(22px, 3.5dvh, 36px);
      flex: 0 0 auto;
   }

   .philosophy_title_box span {
      margin-bottom: 10px;
      font-size: clamp(12px, 1.8vw, 14px);
   }

   .philosophy_title_box h2 {
      margin-bottom: clamp(12px, 2dvh, 18px);
      font-size: clamp(36px, 5.2vw, 52px);
      line-height: 1.1;
   }

   .philosophy_title_box p {
      font-size: clamp(14px, 1.8vw, 16px);
      line-height: 1.5;
      word-break: keep-all;
   }

   .philosophy_title_box p br,
   .philosophy_text p br {
      display: none;
   }

   .philosophy_right {
      min-width: 0;
      height: auto;
      align-self: center;
      justify-content: center;
      gap: 0;
   }

   .philosophy_item {
      min-height: 0;
      padding: clamp(16px, 2.3dvh, 26px) 0;
   }

   .philosophy_text h3 {
      margin-bottom: clamp(14px, 2dvh, 20px);
      font-size: clamp(18px, 2.5vw, 22px);
      line-height: 1.3;
   }

   .philosophy_text {
      padding-right: 0;
      padding-bottom: 0;
   }

   .philosophy_text p {
      font-size: clamp(14px, 1.8vw, 16px);
      line-height: 1.5;
      word-break: keep-all;
   }

   .philosophy_text p+p {
      margin-top: clamp(10px, 1.5dvh, 14px);
   }

   .philosophy_hanja {
      right: 0;
      height: clamp(76px, 12vw, 104px);
      opacity: .22;
   }
}

/* 폴드 펼침 등 세로가 짧은 태블릿 화면 */
@media screen and (min-width: 600px) and (max-width: 1024px) and (max-height: 700px) {
   .core3v_intro_title {
      font-size: clamp(120px, 16vw, 132px);
   }

   .core3v_title {
      font-size: clamp(72px, 9.6vw, 80px);
   }

   .core3v_copy p {
      font-size: clamp(22px, 3vw, 25px);
   }

   .philosophy_typo {
      font-size: clamp(46px, 6.2vw, 52px);
   }

   .philosophy_overlay_title {
      font-size: clamp(70px, 9.6vw, 80px);
   }
}




/*------------------------------------
   모바일 버전
------------------------------------*/
@media screen and (min-width: 300px) and (max-width: 599px) {
   #core3v_section {
      height: 600svh;
   }

   .core3v_sticky,
   .philosophy_sticky {
      height: 100dvh;
   }

   .core3v_inner {
      width: calc(100% - 40px);
      max-width: none;
      padding-top: 56px;
      padding-bottom: 112px;
   }

   :root {
      --core3v-gap: 20px;
   }

   .core3v_intro_visual {
      top: 76px;
      left: 25px;
      right: 25px;
      bottom: max(40px, env(safe-area-inset-bottom));
   }

   .core3v_intro_title {
      font-size: clamp(84px, 24vw, 132px);
   }

   .core3v_intro_video {
      object-position: center center;
   }

   .core3v_menu {
      top: 80px;
      right: 0;
   }

   .core3v_menu p,
   .core3v_menu span {
      display: none;
   }

   .core3v_menu ul {
      flex-direction: row;
      gap: 0px;
   }

   .core3v_menu li {
      font-size: 13px;
      font-weight: 500;
      letter-spacing: 0.02em;
      padding: 14px 24px;
   }

   .core3v_scene {
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      align-items: flex-start;
      gap: 20px;

      padding-bottom: 10%;
      box-sizing: border-box;
   }

   .core3v_title_wrap {
      position: relative;
      left: auto;
      right: auto;
      top: auto;
      bottom: auto;
      transform: none;
   }

   .core3v_title {
      font-size: clamp(54px, 17vw, 78px);
      line-height: 1;
   }

   .core3v_copy {
      position: relative;
      left: 1%;
      right: auto;
      top: auto;
      bottom: auto;
      max-width: 100%;
   }

   .core3v_copy p {
      font-size: clamp(22px, 6.7vw, 30px);
      line-height: 1.45;
      word-break: keep-all;
      font-weight: 600;
   }

   .bg_vision {
      background-position: 42% center;
   }

   .bg_value {
      background-position: 49% center;
   }

   .bg_vow {
      background-position: 47% center;
   }

   #philosophy_section {
      height: 470svh;
      padding: 0;
      background: var(--color-bg-base);
   }

   .philosophy_sticky {
      position: sticky;
      top: 0;
      height: 100dvh;
      overflow: hidden;
      background: #fff;
   }

   .philosophy_intro {
      display: block;
      top: 25%;
      width: calc(100% - 40px);
   }

   .philosophy_typo {
      width: 100%;
      font-size: clamp(28px, 8.2vw, 40px);
      line-height: 1.45;
      letter-spacing: -0.035em;
   }

   .philosophy_typo .typo_line {
      width: 100%;
      word-break: keep-all;
   }

   .philosophy_typo .typo_base,
   .philosophy_typo .typo_fill {
      width: 100%;
      white-space: normal;
   }

   .philosophy_visual {
      display: block;
      left: 50%;
      top: 62%;
      width: calc(100% - 40px);
      aspect-ratio: 335 / 181;
   }

   .philosophy_overlay_title {
      display: block;
      width: 100%;
      text-align: center;
      font-size: clamp(40px, 13vw, 66px);
      line-height: 1;
   }

   .philosophy_final {
      position: absolute;
      inset: 0;
      z-index: 1;
   }

   .philosophy_inner {
      width: calc(100% - 40px);
      max-width: none;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: flex-start;
      gap: 36px;
      padding-top: 64px;
      padding-bottom: 24px;
   }

   .philosophy_left {
      width: 100%;
      height: clamp(329px, 80vw, 390px);
      flex: 0 0 clamp(329px, 80vw, 390px);
      min-height: 0;
      display: flex;
      flex-direction: column;
      gap: 0;
   }

   .philosophy_title_box {
      position: relative;
      left: auto;
      top: auto;
   }

   .philosophy_img_target {
      position: relative;
      left: auto;
      bottom: auto;
      width: 100%;
      aspect-ratio: 335 / 181;
      margin-top: 22px;
   }

   .philosophy_title_box span {
      margin-bottom: 16px;
      font-size: 12px;
      font-weight: 400;
      letter-spacing: 0.06em;
      color: var(--color-brand);
   }

   .philosophy_title_box h2 {
      margin-bottom: 22px;
      font-size: 31px;
      font-weight: 800;
      line-height: 1.15;
      color: var(--color-text-primary);
   }

   .philosophy_title_box p {
      font-size: 14px;
      line-height: 1.65;
      color: var(--color-text-secondary);
      word-break: keep-all;
   }

   .philosophy_right {
      width: 100%;
      height: auto;
      display: flex;
      flex-direction: column;
      gap: 0;
      /* margin-top: 38px; */
   }

   .philosophy_item {
      position: relative;
      min-height: 0;
      padding: 32px 0 36px;
   }

   .philosophy_text {
      padding-right: 0;
   }

   .philosophy_text h3 {
      min-height: 86px;
      margin-bottom: 20px;
      padding-right: 116px;
      display: flex;
      align-items: center;
      font-size: 18px;
      font-weight: 600;
      line-height: 1.35;
      color: var(--color-text-primary);
      word-break: keep-all;
   }

   .philosophy_text p {
      font-size: 14px;
      line-height: 1.58;
      color: var(--color-text-secondary);
      word-break: keep-all;
   }

   .philosophy_text p+p {
      margin-top: 13px;
   }

   .philosophy_hanja {
      right: 0;
      top: 28px;
      height: clamp(86px, 26vw, 100px);
      transform: none;
      opacity: 0.62;
   }
}