@charset "UTF-8";
body {
  margin: 0;
  font-family: 'Noto Sans JP', sans-serif;
  color: #333;
  overflow-x: hidden;  
}

/* ============================
   T03 MAIN VISUAL SLIDER
============================ */
.t03_mv {
  position: relative;
  overflow: hidden;
  background: #000; /* or #3f4754とかでもOK */  
}

/* スライダー枠 */
.t03_mv_slider {
  position: relative;
  width: 100%;
  height: 100vh; /* 画面いっぱい */
  z-index: 1;  
}

.t03_mv_slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
  opacity: 0;
  animation: t03FadeSlide 15s infinite;
}

.t03_mv_logo {
  position: absolute;
  top: auto;
  left: auto;
  bottom: 40px;
  right: 40px;
  transform: noneactive;
  width: 300px;
  max-width: 30%;
  z-index: 20;
  width: 600px;
  max-width: 100%;
  animation-fill-mode: forwards;
  opacity: 1 !important;
}

.t03_mv_logo img {
  width: 100%;
  height: auto;
  display: block;
}

/* 画像設定 */
.slide1 {
  background-image: url("../image/top/mv_pc_01.jpg");
  animation-delay: 0s;
}

.slide2 {
  background-image: url("../image/top/mv_pc_02.jpg");
  animation-delay: 5s;
}

.slide3 {
  background-image: url("../image/top/mv_pc_03.jpg");
  animation-delay: 10s;
}

/* フェードアニメーション（ぬるっと） */
@keyframes t03FadeSlide {
  0%   { opacity: 0; }
  10%  { opacity: 1; }
  40%  { opacity: 1; }
  50%  { opacity: 0; }
  100% { opacity: 0; }
}

@keyframes logoFade {
  from {
    opacity: 0;
    transform: translate(-50%, -40%);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%);
  }
}
/* ============================
   SP
============================ */
@media screen and (max-width: 768px) {

  .t03_mv_slider {
    height: 100vh;
  }

  .slide1 {
    background-image: url("../image/top/mv_sp_01.jpg");
  }

  .slide2 {
    background-image: url("../image/top/mv_sp_02.jpg");
  }
  
  .slide3 {
    background-image: url("../image/top/mv_sp_03.jpg");
  }
  .t03_mv_logo {
    left: 50%;
    right: auto;
    bottom: 30px;
    top: auto;
    transform: translateX(-50%);
    width: 100%;
    max-width: 600px;
  }  
}
/* =====================
  BASE
===================== */
.t03_main {
  font-family: 'Noto Serif JP', serif;
}

.t03_section {
  position: relative;
}

.t03_section_inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.t03_section_reverse .t03_section_inner {
  direction: rtl;
}

.t03_section_reverse * {
  direction: ltr;
}

.t03_section_reverse .t03_section_text {
  order: 1;
}

/* =====================
  IMAGE
===================== */
.t03_section_img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* =====================
  TEXT AREA
===================== */
.t03_section_text {
  background: #3f4754;
  color: #fff;
  padding: 80px 60px;
  position: relative;
}

.t03_section_text::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../image/top/bg_noise.png");
  opacity: 0.3;
  pointer-events: none;
}

/* =====================
  TYPOGRAPHY
===================== */
.t03_section_en {
  display: flex;
  align-items: center;
  font-size: 20px;
  letter-spacing: 0.2em;
  margin-bottom: 40px;
  font-family: 'Noto Serif JP', serif;  
}

.t03_section_en::after {
  content: "";
  flex: 1;
  height: 1px;
  margin-left: 20px;
  background: rgba(255,255,255,0.5);
}

.t03_section_title {
  font-family: 'Noto Serif JP', serif;
  font-size: 28px;
  line-height: 1.8;
  margin-bottom: 30px;
  text-align: left;
}

.t03_section_desc {
  font-size: 16px;
  line-height: 2;
  color: rgba(255,255,255,0.85);
}

/* =====================
  BUTTON
===================== */
.t03_btn {
  display: block;
  width: 100%;
  margin-top: 40px;
  padding: 16px 0;
  text-align: center;
  background: #fff;
  color: #3f4754;
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.2em;
  position: relative;
  transition: all 0.35s ease;
  overflow: hidden;
}

.t03_btn::after {
  content: "→";
  position: absolute;
  right: 20px;
  transition: transform 0.35s ease;
}

.t03_btn span {
  display: inline-block;
  margin-left: 10px;
  width: 20px;
  height: 1px;
  background: #3f4754;
  position: relative;
  transition: transform 0.35s ease;
}

.t03_btn span::after {
  content: "";
  position: absolute;
  right: 0;
  top: -3px;
  width: 6px;
  height: 6px;
  border-top: 1px solid #3f4754;
  border-right: 1px solid #3f4754;
  transform: rotate(45deg);
}

.t03_btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.15);
}

.t03_btn:hover::after {
  transform: translateX(6px);
}

.t03_btn:hover span {
  transform: translateX(4px);
}

/* =====================
  SUB IMAGE（CONCEPTだけ）
===================== */
.t03_section_subimg {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 40%;
}

.t03_section_subimg img {
  width: 100%;
}

/* =====================
  CONCEPT
===================== */
/* 初期：PC表示 */
.concept_sp {
  display: none;
}

/* SP時切り替え */
@media screen and (max-width: 768px) {
  .concept_pc {
    display: none;
  }
  .concept_sp {
    display: block;
  }
}

.t03_section_concept .t03_section_inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

/* 左：メイン画像 */
.t03_concept_main {
  grid-column: 1 / 2;
}

.t03_concept_main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 右側を縦分割 */
.t03_concept_images {
  grid-column: 2 / 3;
  display: grid;
  grid-template-rows: auto 1fr;
}

/* 上：テキスト */
.t03_section_concept .t03_section_text {
  grid-row: 1 / 2;
}

/* 下：サブ画像 */
.t03_concept_sub {
  grid-row: 2 / 3;
}

.t03_concept_sub img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* =====================
  SP
===================== */
@media screen and (max-width: 768px) {
 .t03_section_concept .t03_section_inner {
    display: block;
  }

  /* テキスト → 画像の順にする */
  .t03_section_text {
    order: 1;
  }

  .t03_concept_images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    order: 2;
  }

  .t03_concept_main,
  .t03_concept_sub {
    grid-column: auto !important;
    grid-row: auto !important;
  }

  .t03_concept_main img,
  .t03_concept_sub img {
    width: 100%;
    height: auto;
  }
  
  .t03_concept_images_sp {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .t03_concept_images_sp img {
    width: 100%;
    height: auto;
    display: block;
  }  
  
  .t03_section_inner {
    display: flex;
    flex-direction: column;
  }  
  
  .t03_section_text {
    order: 1;
  }
  
  .t03_section_img {
    order: 2;
  }  
  
  .t03_section_reverse .t03_section_inner {
    direction: ltr;
  }

  .t03_section_en {
    font-size: 16px;
  }

  .t03_section_en::after {
    width: 60px;
  }

  .t03_section_title {
    font-size: 22px;
  }

  .t03_section_desc {
    font-size: 14px;
  }

  .t03_section_subimg {
    position: static;
    width: 100%;
    margin-top: 20px;
  }
}

/* ============================
  SP (768px以下)
============================ */
@media (max-width: 768px) {
  img.om06_mv_pc {
    display: none;
  }
  img.om06_mv_sp {
    display: block;
  }
  * {
    box-sizing: border-box;
  }
}

/* =====================================
   2025 ANIMATION SET（underscore版）
===================================== */

/* ---------- MAIN VISUAL ZOOM ---------- */
.om06_mv {
  overflow: hidden;
}

.om06_mv img {
  opacity: 0;
  transform: translateY(10px);
  animation: mv_fade 1.6s ease-out forwards;
  will-change: transform;  
}

@keyframes mv_fade {
  from {
    opacity: 0;
    transform: scale(1.02);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ---------- SCROLL FADE BASE ---------- */
.fade_up,
.fade_left,
.fade_right {
  opacity: 0;
  transition: opacity 0.8s ease, transform 0.8s ease;
  will-change: opacity, transform;
}

.fade_up {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
  transition-delay: var(--delay, 0s);
}

.fade_up.is_show {
  opacity: 1;
  transform: translateY(0);
}

.fade_left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s ease-out;
  transition-delay: var(--delay, 0s);
}

.fade_left.is_show {
  opacity: 1;
  transform: translateX(0);
}

.fade_right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s ease-out;
  transition-delay: var(--delay, 0s);
}

.fade_right.is_show {
  opacity: 1;
  transform: translateX(0);
}

.fade_up.is_show,
.fade_left.is_show,
.fade_right.is_show {
  opacity: 1;
  transform: translate(0,0);
}

/* ---------- MENU HOVER ---------- */
.icon_menu_item a {
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.icon_menu_item a:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}
@media (max-width: 768px) {
  .fade_left, .fade_right {
    transform: translateY(20px);
    text-align: center;
  }
}