:root {
  --bg-white: #ffffff;
  --accent-red: #ff0000;
  --wire-gray: #b2b2b2;
  --slider-green: #00ff21;
  --ease-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

/* 先方のcss解除 */
#wrapper {
  overflow: visible;
}

* {
  box-sizing: border-box;
}

.collaboration {
  margin: 0;
  padding: 0;
  /* ヘッダー固定分の余白 (SP/PC共通の基本値) */
  /* padding-top: 70px; */
  background-color: var(--bg-white);
  font-family: "Helvetica Neue", Arial, sans-serif;
  /* overflow-x: hidden; */
}

/* ==========================================
   ヘッダー基本設定
========================================== */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 75px;
  background-color: #000;
  color: #fff;
  z-index: 9999;
  display: flex;
  align-items: center;
  position: -webkit-sticky;
  position: sticky;
  top: 0;
}

.header-inner {
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 30px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.header-logo {
  width: 90px;
}

.header-logo a {
  font-size: 1.5rem;
  font-weight: bold;
  letter-spacing: 0.2em;
  color: #fff;
  text-decoration: none;
}

.header-right {
  display: flex;
  justify-content: flex-end;
}

.insta-link {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  text-decoration: none;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  transition: opacity 0.3s;
}

.insta-link:hover {
  opacity: 0.7;
}

.collaboration .insta-link svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 750px) {
  .header-inner {
    grid-template-columns: 0fr auto 1fr;
  }
  .main-header {
    height: 60px;
  }
  .header-logo {
    width: 160px;
}
}

/* ==========================================
   オープニング演出 & 共通パーツ
========================================== */



.opening-section-mt2 {
  margin-top: 80px;
}

.collaboration img {
  width: 100%;
  height: auto;
  display: block;
}

.collaboration .is-sp {
  display: none;
}
@media (max-width: 750px) {
  .opening-section-mt2 {
    margin-top: 70px;
  }

  .collaboration .is-sp {
    display: block;
  }
  .collaboration .is-pc {
    display: none;
  }
  }

/* ==========================================
   アニメーション (Fade / Reveal)
========================================== */
.reveal,.reveal02 {
  opacity: 0;
  filter: blur(12px);
  transform: translateY(60px); /* デフォルト: fade-up */
  transition:
    opacity 1.2s var(--ease-expo),
    transform 1.2s var(--ease-expo),
    filter 1.2s var(--ease-expo);
  will-change: opacity, transform;
  position: relative; /* オーバーレイの基準 */
  overflow: hidden;
}

.reveal.gradation,.reveal02.gradation {
opacity: 0;
  /* 位置移動はせず、マスクだけで「現れる」演出をする */
  transform: translate(0, 0); 
  
  /* マスクを縦（または横）に2倍のサイズで用意する */
  -webkit-mask-size: 100% 200%;
  mask-size: 100% 200%;
  -webkit-mask-repeat: no-repeat;
  
  transition:
    opacity 0.1s linear, 
    -webkit-mask-position 2s var(--ease-expo),
    mask-position 2s var(--ease-expo);
}

/* 方向バリエーション */
.reveal.fade-up,.reveal02.fade-up {
  transform: translateY(60px);
}

.reveal.fade-down,.reveal02.fade-down {
  transform: translateY(-60px);
}

.reveal.fade-left,.reveal02.fade-left {
  transform: translateX(60px);
}

.reveal.fade-right,.reveal02.fade-right {
  transform: translateX(-60px);
}
/* 【下から上へ】現れる */
.reveal.gradation.fade-up,.reveal02.gradation.fade-up {
  -webkit-mask-image: linear-gradient(to bottom, transparent 10%, black 50%);
  mask-image: linear-gradient(to bottom, transparent 10%, black 50%);
  -webkit-mask-position: 0 0%;
  mask-position: 0 0%;

}

/* 【上から下へ】現れる */
.reveal.gradation.fade-down,.reveal02.gradation.fade-down {
  -webkit-mask-image: linear-gradient(to top, transparent 10%, black 50%);
  mask-image: linear-gradient(to top, transparent 10%, black 50%);
  -webkit-mask-position: 0 0%;
  mask-position: 0 0%;

}

/* 【右から左へ】現れる */
.reveal.gradation.fade-left,.reveal02.gradation.fade-left {
  -webkit-mask-size: 200% 100%;
  mask-size: 200% 100%;
  -webkit-mask-image: linear-gradient(to right, transparent 10%, black 50%);
  mask-image: linear-gradient(to right, transparent 10%, black 50%);
  
}

/* 【左から右へ】現れる */
.reveal.gradation.fade-right,.reveal02.gradation.fade-right {
-webkit-mask-size: 200% 100%;
  mask-size: 200% 100%;
  /* 左側を「黒（表示）」、右側を「透明（非表示）」にする */
  -webkit-mask-image: linear-gradient(to right, black 50%, transparent 90%);
  mask-image: linear-gradient(to right, black 50%, transparent 90%);
  /* 最初は「黒」を左側に追い出しておく（＝要素の上には透明が乗る） */
  -webkit-mask-position: 100% 0%;
  mask-position: 100% 0%;
}

/* 表示状態 */
.reveal.js-visible,.reveal02.js-visible {
  opacity: 1;
  transform: translate(0, 0);
  filter: blur(0);
}

/* 【縦方向】fade-up / fade-down 用：Y軸（2つ目の数値）を 100% に動かす */
.reveal.gradation.fade-up.js-visible,
.reveal.gradation.fade-down.js-visible,
.reveal02.gradation.fade-up.js-visible,
.reveal02.gradation.fade-down.js-visible  {
  -webkit-mask-position: 0 100% !important; 
  mask-position: 0 100% !important;
}

/* 【横方向】fade-left / fade-right 用：X軸（1つ目の数値）を 100% に動かす */
.reveal.gradation.fade-left.js-visible,
.reveal.gradation.fade-right.js-visible,
.reveal02.gradation.fade-left.js-visible,
.reveal02.gradation.fade-right.js-visible {
  -webkit-mask-position: 100% 0 !important; 
  mask-position: 100% 0 !important;
}

.reveal.gradation.fade-right.js-visible,
.reveal02.gradation.fade-right.js-visible {
  /* マスクを 0 0 に戻すことで、左側にあった「黒」が要素に重なる */
  -webkit-mask-position: 0% 0% !important;
  mask-position: 0% 0% !important;
}

/* ==========================================
   オーバーレイ & インタラクション
========================================== */
.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  opacity: 0;
  transition: opacity 0.5s ease;
  z-index: 10;
  display: inherit;
}

.overlay-content {
  position: absolute;
  top: 50%;
  color: #fff;
  text-align: left;
  transform: translateY(20px);
  transition: transform 0.5s var(--ease-expo);
  width: 100%;
}

/* オーバーレイ ホバー時の挙動 */
.detail.active .overlay {
  opacity: 1;
}

.detail.active .overlay-content {
  transform: translateY(0);
}

/* スマホ対応: タップ(active)時 */
@media (hover: none) {
  .detail.active .overlay {
    opacity: 1;
  }
  .detail.active .overlay-content {
    transform: translateY(0);
  }
}

/* オーバーレイ内のリンク・アイコン */
.overlay-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  height: 28px;
}

.overlay-link {
  position: relative;
  color: #fff;
  text-decoration: none;
  transition: color 0.3s ease;
  display: inline-flex;
  font-family: "Roboto", sans-serif;
  font-size: 12px;
  margin: 0 auto;
  margin-bottom: 5px;

}
@media (max-width: 750px) {
  .overlay-link {
    font-size: 10px;
  }
}

.overlay-link svg {
  width: 30px;
  height: 30px;
}


.overlay-link::after {
  content: "";
  position: absolute;
  bottom: 0px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: #fff;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
@media (max-width: 750px) {
  .overlay-link::after {
    bottom: -8px;
  }
}

.overlay-link:hover::after {
  transform: scaleX(1);
}

/* ==========================================
   グリッドレイアウト (PC)
========================================== */
@media (min-width: 751px) {
  .sp-only {
    display: none !important;
  }
  .container-pc {
    margin: 0 auto;
    width: 100%;
    max-width: 1000px;
  }
  .grid-10 {
    display: grid;
    grid-template-columns: repeat(1000, 1fr);
    gap: 0;
    align-items: end;
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
  }


  
.grid-10-p1 {
    margin-top: 118px;
}

.grid-10-p2 {
    margin-top: 100px;
}

.grid-10-p3 {
    margin-top: 130px;
}

.grid-10-p4 {
    margin-top: 100px;
}
.grid-10-p5 {
    margin-top: 130px;
}
.grid-10-p6 {
    margin-top: 100px;
}

.grid-10-p7 {
    margin-top: 130px;
}

.grid-10-p8 {
    margin-top: 100px;
}

.grid-10-p9 {
    margin-top: 130px;
}

.grid-10-p10 {
    margin-top: 100px;
}

.grid-10-p11 {
    margin-top: 130px;
}

.grid-10-p12 {
    margin-top: 130px;
}

.grid-10-p13 {
    margin-top: 100px;
}

.grid-10-p14 {
    margin-top: 100px;
}

.grid-10-p15 {
    margin-top: 100px;
}
.grid-10-p16 {
    margin-top: 100px;
}
 /* Grid Items */
.p1-1 {
    grid-column: 285/ 715;
    grid-row: 1 / 2;
    aspect-ratio: 430 / 310;
    max-width: 430px;
}

.p2-1 {
    grid-column: 1 / 500;
    max-width: 500px;
    aspect-ratio: 500 / 693;
    grid-row: 1 / 3;
    align-self:start;

}

.p2-2 {
    grid-column: 600 / 1000;
    max-width: 400px;
    aspect-ratio: 400 / 554;
    align-self:start;
    grid-row: 1;
}

.p2-3 {
    grid-column: 570 / 950;
    max-width: 380px;
    aspect-ratio: 350 / 252;
    margin-top: 70px;
    align-self:end;
    grid-row: 2;
}

.p3-1 {
    width: 430px;
    aspect-ratio: 430 / 310;
    grid-column: 285/ 715;
}

.p4-1 {
    grid-column: 1 / 400;
    max-width: 400px;
    aspect-ratio: 400 / 554;
    grid-row: 1;
    align-self:start;
}

.p4-2 {
    grid-column: 50 / 400;
    max-width: 400px;
    aspect-ratio: 350 / 252;
    grid-row: 2;
    align-self:end;
    margin-top: 100px;
}

.p4-3 {
    grid-column: 500 / 1000;
    max-width: 500px;
    aspect-ratio: 500 / 693;
    grid-row: 1/3;
    align-self:start;
}

.p4-4 {
    grid-column: 455 / 725;
    max-width: 270px;
    aspect-ratio: 200 / 144;
    grid-row: 2/4;
    align-self:end;
    margin-top: 85px;
}

.p5-1 {
    grid-column: 345/ 655;
    aspect-ratio: 310 / 429;
    max-width: 310px;
}

.p6-1 {
    grid-column: 1 / 500;
    max-width: 500px;
    aspect-ratio: 500 / 693;
    grid-row: 1;
    align-self:start;
}

.p6-2 {
    grid-column: 276 / 546;
    max-width: 270px;
    aspect-ratio: 200 / 144;
    grid-row: 2;
    align-self:end;
    margin-top: 90px;
}

.p6-3 {
    grid-column: 600 / 1000;
    max-width: 400px;
    aspect-ratio: 400 / 544;
    grid-row: 1/3;
    align-self:start;
}

.p6-4 {
    grid-column: 600 / 950;
    max-width: 350px;
    aspect-ratio: 350 / 252;
    grid-row: 2/4;
    align-self:start;
    position: relative;
    top: -40px;
}

.p7-1 {
    grid-column: 285/ 715;
    aspect-ratio: 430 / 310;
    max-width: 430px;
}

.p8-1 {
    grid-column: 1 / 400;
    max-width: 400px;
    aspect-ratio: 400 / 554;
    grid-row: 1;
    align-self:start;
}

.p8-2 {
    grid-column: 50 / 400;
    max-width: 400px;
    aspect-ratio: 350 / 252;
    grid-row: 2;
    align-self:end;
    margin-top: 100px;
}

.p8-3 {
    grid-column: 500 / 1000;
    max-width: 500px;
    aspect-ratio: 500 / 693;
    grid-row: 1/3;
    align-self:start;
}

.p8-4 {
    grid-column: 455 / 725;
    max-width: 270px;
    aspect-ratio: 200 / 144;
    grid-row: 2/4;
    align-self:end;
    margin-top: 85px;
}

.p9-1 {
    grid-column: 1 / 400;
    max-width: 400px;
    aspect-ratio: 400 / 288;
    align-self:start;
}

.p9-2 {
    grid-column: 500 / 1000;
    max-width: 500px;
    aspect-ratio: 500 / 360;
    align-self:start;
}

.p10-1{
    grid-column: 250/ 750;
    aspect-ratio: 500 / 693;
    max-width: 500px;
}

.p11-1{
    grid-column: 300/ 700;
    aspect-ratio: 400 / 288;
    max-width: 400px;
}

.p12-1{
    grid-column: 100/ 400;
    aspect-ratio: 300 / 216;
    max-width: 300px;
    align-self:center;
}

.p12-2{
    grid-column: 500/ 900;
    aspect-ratio: 400 / 288;
    max-width: 400px;
}

.p13-1{
    grid-column: 210/ 498;
    aspect-ratio: 288 / 400;
    max-width: 288px;
}

.p13-2{
    grid-column: 600/ 816;
    aspect-ratio: 216 / 300;
    max-width: 216px;
    align-self:center;
}

.p14-1{
    grid-column: 100/ 400;
    aspect-ratio: 300 / 216;
    max-width: 300px;
    align-self:center;
}

.p14-2{
    grid-column: 500/ 900;
    aspect-ratio: 400 / 288;
    max-width: 400px;
}

.p15-1{
    grid-column: 100/ 500;
    aspect-ratio: 400 / 288;
    max-width: 400px;
}

.p15-2{
    grid-column: 600/ 900;
    aspect-ratio: 300 / 216;
    max-width: 300px;
    align-self:center;
}


.p16-1{
    grid-column: 184/ 400;
    aspect-ratio: 216 / 300;
    max-width: 216px;
    align-self:center;
    margin-top: 4px;
}

.p16-2{
    grid-column: 492/ 780;
    aspect-ratio: 288 / 400;
    max-width: 288px;
}

  


  .wide-img {
    width: 100%;
    aspect-ratio: 1920/967;
    margin-top: 60px;
  }
}

/* ==========================================
   スマホ版レイアウト (SP)
========================================== */
@media (max-width: 750px) {
  .pc-only {
    display: none !important;
  }
  .opening-section-pc {
    display: none;
  }
  .main-header {
    height: 60px;
  }
  body {
    /* padding-top: 60px; */
  }
  .header-inner {
    padding: 0 20px;
  }
  /* .sticky-wrapper {
    top: 60px;
    height: calc(100vh - 60px);
  } */

  .container-sp {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    margin-left: 15px;
    margin-right: 15px;
    width: calc(100% - 30px);
  }
  .s-full {
    width: 100%;
  }
  .s-center {
    margin: 0 auto;
  }
  .s-right {
    margin-left: auto;
    margin-right: 0;
  }
  .s-left {
    margin-left: 0;
    margin-right: auto;
  }
  .s-flex {
    display: flex;
  }

  /* SP Grid Items */
  .sp-01 {
    aspect-ratio: 430/310;
    width: 56%;
    margin-top: 70px;
  }
  .sp-02 {
    aspect-ratio: 690/956;
    width: 100%;
    margin-top: 30px;
  }
  .sp-03 {
    aspect-ratio: 400/554;
    width: 53%;
    margin-top: 30px;
  }
  .sp-04 {
    aspect-ratio: 350/252;
    width: 45.3%;
    margin-top: 30px;
    margin-right: 6.5%;
  }
  .sp-05 {
    aspect-ratio: 430/310;
    width: 56%;
    margin-top: 70px;
  }
  .sp-06 {
    aspect-ratio: 500/693;
    width: 100%;
    margin-top:30px;
  }
  .sp-07 {
    aspect-ratio: 400/554;
    width: 53.3%;
    margin-top: 30px;
  }
  .sp-08 {
    aspect-ratio: 400/288;
    width: 53.3%;
    margin-top: 30px;
  }
  .sp-09 {
    aspect-ratio: 300/216;
    width: 45.3%;
    margin-top: 30px;
    margin-left: 6.5%;

  }
  .sp-10 {
      aspect-ratio: 310/429;
    width: 40.2%;
    margin-top: 70px;
  }
  .sp-11 {
    aspect-ratio: 690/956;
    width: 100%;
    margin-top: 30px;
  }
  .sp-12 {
    aspect-ratio: 400/554;
    width: 53.3%;
    margin-top: 30px;
  }
  .sp-13 {
    aspect-ratio: 400/288;
    width: 53.3%;
    margin-top: 30px;
  }
  .sp-14 {
    aspect-ratio: 300/216;
    width: 45.3%;
    margin-top: 30px;
    margin-right: 6.5%;
  }
  .sp-15 {
    aspect-ratio: 430/310;
    width: 56%;
    margin-top: 70px;
  }
  .sp-16 {
    aspect-ratio: 690/956;
    width: 100%;
    margin-top: 30px;
  }
  .sp-17 {
    aspect-ratio: 400/554;
    width: 53.3%;
    margin-top: 30px;
  }
    .sp-18 {
    aspect-ratio: 400/288;
    width: 53.3%;
    margin-top: 30px;
  }
  .sp-19 {
    aspect-ratio: 300/216;
    width: 45.3%;
    margin-top: 30px;
    margin-left: 6.5%;
  }
  .sp-20 {
    aspect-ratio: 420/302;
    width: 56%;
    margin-top: 70px;
  }
  .sp-21 {
    aspect-ratio: 690/956;
    width: 100%;
    margin-top: 30px;
  }
    .sp-22 {
    aspect-ratio: 500/360;
    width: 66.6%;
    margin-top: 30px;
  }
  .sp-23 {
    aspect-ratio: 400/288;
    width: 45.3%;
    margin-top: 40px;
    margin-right: 6.5%;
  }
  .sp-24 {
    aspect-ratio: 440/316;
    width: 58.6%;
    margin-top: 70px;
  }
  .sp-25 {
    aspect-ratio: 550/396;
    width: 73.3%;
    margin-top: 40px;
  }
    .sp-26 {
    aspect-ratio: 396/550;
    width: 52.8%;
    margin-top: 40px;
  }
  .sp-27 {
    aspect-ratio: 216/300;
    width: 42.1%;
    margin-top: 40px;
  }
  .sp-28 {
    aspect-ratio: 550/396;
    width: 73.3%;
    margin-top: 40px;
  }
  .sp-29 {
    aspect-ratio: 440/316;
    width: 58.6%;
    margin-top: 40px;
  }
    .sp-30 {
    aspect-ratio: 550/396;
    width: 73.3%;
    margin-top: 40px;
  }
  .sp-31 {
    aspect-ratio: 440/316;
    width: 58.6%;
    margin-top: 40px;
  }
  .sp-32 {
    aspect-ratio: 316/440;
    width: 42.1%;
    margin-top: 40px;
  }
  .sp-33 {
    aspect-ratio: 396/550;
    width: 52.8%;
    margin-top: 40px;
  }
}

@media (min-width: 751px) {
  .opening-section-sp {
    display: none;
  }
}


/* 閉じるボタン */
.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  cursor: pointer;
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 十字アイコン (Cross Icon) */
.cross-icon {
  position: absolute;
  bottom: 10px;
  right: 10px;
  width: 44px;
  height: 44px;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 11;
  cursor: pointer;
}

.cross-icon.cross-icon-s {
    width: 24px;
    height: 24px;
}

.cross-icon::before,
.cross-icon::after {
  content: "";
  position: absolute;
  background-color: #fff;
}

.cross-icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}

.cross-icon::after {
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}

.detail.active .cross-icon {
  transform: rotate(135deg);
}


/* 追加 */

.detail {
  position: relative;
}


  .text-p2 {
    text-align: center;
    font-family: "Shippori Mincho", serif;
    margin-top: 70px;
  }
  .text-p2 p {
    font-size: 16px;
    letter-spacing: 1px;
    line-height: 34px;
    margin-top: 16px;
    margin-bottom: 16px;
    /* font-weight: 600; */
    font-weight: 700;

  }

  @media (max-width: 750px){
  .text-p2 {
    margin-top: 50px;
  }
  .text-p2 p {
    font-size: 13px;
    letter-spacing: 1px;
    line-height: 26px;
    margin-top: 20px;
    margin-bottom: 0px;
    font-weight: 700;
  }

  }


  /* 全体のレイアウト設定 */
.opening-section {
  position: relative;
  width: 100%;
  /* height: 100vh; */
  overflow: hidden;
  background-color: #fff; /* 初期状態を白に */
}
/* =========================================
   1. 初期状態（見えていない状態）
========================================= */
/* 白い幕（下がりきっている） */
.opening-section::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 150vh;
  background: linear-gradient(to bottom, #fff 0%, #fff 70%, rgba(255,255,255,0) 100%);
  z-index: 100;
  pointer-events: none;
  transform: translateY(0);
}

.sticky-wrapper {
  position: relative;
}

.fv-text {
  position: absolute;
  z-index: 10;
  top: 37%;
  width: 100%;
  display: flex;
  justify-content: space-between;
}
.fv-text02 {
  position: absolute;
  z-index: 10;
  top: 36%;
  width: 100%;
  display: inherit;
}

@media (max-width: 750px){
.fv-text02 {
  top: 32%;
}
}

/* 画像とロゴ（透明） */
.opening-section .zoom-img-container img,
.opening-section .logo-1,
.opening-section .logo-2 {
  opacity: 0;
}

.collaboration .fv-text img.logo-1 {
  /* max-width: 430px; */
  width: 19.9%;
  margin-left: 5%;
}

.collaboration .fv-text img.logo-2 {
  width: 22%;
  margin-right: 4.7%;
}
.collaboration .fv-text02 img.logo-1 {
  /* max-width: 370px; */
  width: 17.5%;
  margin-top: 2.7%;
  margin-left: 6.6%;
}

.collaboration .fv-text02 img.logo-2 {
  /* max-width: 260px; */
  width: 16.7%;
  margin-left: 6.6%;
}

@media (max-width: 750px) {
  .fv-text {
    position: absolute;
    z-index: 10;
    top: 0;
    width: 100%;
    height: 100%;
    display: block;
  }
  .collaboration .fv-text img.logo-1 {
    max-width: inherit;
    width: 52%;
    margin-left: 24%;
    top: 15%;
    position: absolute;
  }

  .collaboration .fv-text img.logo-2 {
    max-width: inherit;
    width: 58%;
    margin-left: 21%;
    top: 9%;
    position: absolute;

  }
  .collaboration .fv-text02 img.logo-1 {
  /* max-width: 370px; */
  width: 29%;
  margin-left: 6.4%;
  margin-top: 5%;
}

.collaboration .fv-text02 img.logo-2 {
  /* max-width: 260px; */
  width: 29%;
  margin-left: 6.4%;
}

}

/* =========================================
   2. 表示された時のアニメーション (js-visible)
========================================= */
/* 白い幕が上に消える */
.opening-section.js-visible::before {
  animation: gradientSlideUp 1.5s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}

/* 背景画像がフワッと出る */
.opening-section.js-visible .zoom-img-container img {
  animation: fadeIn 0.8s ease-out 0.5s forwards;
}

/* ロゴ1が左からスライド */
.opening-section.js-visible .logo-1 {
  animation: slideInRight 0.8s ease-out 1.2s forwards;
}

/* ロゴ2が遅れてフワッと */
.opening-section.js-visible .logo-2 {
  animation: fadeIn 1.5s ease-out 1.8s forwards;
}

/* =========================================
   3. アニメーションの動き定義
========================================= */
@keyframes gradientSlideUp {
  to { transform: translateY(-150vh); }
}
@keyframes fadeIn {
  to { opacity: 1; }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}