@charset "utf-8";

/* ============================================================
   1. 基本レイアウト 
   ============================================================ */
.welco-top {
  font-family: "Noto Sans JP", sans-serif;
  background-color: #f2f2f2;
}

.welco-layout {
  display: flex;
  width: 100%;
}

/* 左：固定看板エリア（背景切り替えの土台） */
.welco-layout__left {
  width: 40%;
  min-width: 40%;
  height: 100vh;
  position: sticky;
  top: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #f2f2f2;
  z-index: 20;
  /* 背景画像の設定 */
  background-repeat: no-repeat;
  background-size: 380px auto;
  background-position: center 75%;
  transition: background-image 0.8s ease-in-out;
  /* ふわっと切り替える */
}

.welco-left-content {
  width: 100%;
  max-width: 420px;
}

/* 右：コンテンツラップ */
.welco-layout__right-wrap {
  width: 60%;
  background-color: #fff;
  position: relative;
  padding-right: 250px;
  padding-top: 100px;
  z-index: 10;
}

/* 右端メニュー帯 */
.welco-layout__margin {
  position: absolute;
  top: 0;
  right: 0;
  width: 250px;
  height: 100%;
  background-color: #f2f2f2;
  z-index: 30;
}

/* ============================================================
   2. サービスセクション：画像とテキストの重なり調整
   ============================================================ */
.welco-service-section {
  position: relative;
  padding: 150px 40px;
  display: flex;
  flex-direction: column;
  overflow: visible;
}

.welco-service__img-wrap {
  position: relative;
  width: 500px;
  margin-left: auto;
  margin-right: -150px;
  margin-bottom: -80px;
  z-index: 15;
}

.welco-service__text-block {
  position: relative;
  z-index: 40;
  max-width: 450px;
  background: rgba(255, 255, 255, 0.95);
  padding: 40px;
}