* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
/* ページ全体のスクロールを滑らかに */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 180px;
}

body {
  font-family: "Helvetica Neue", Arial, sans-serif;
  background: #000;
  color: #fff;
}
a {
  color: #fff;
  text-decoration: underline;
}
a:hover {
  text-decoration: none;
}

/* HEADER */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 24px 0;
  text-align: center;
  background: rgba(0,0,0,0.9);
  z-index: 100;
}

.logo {
  font-size: 18px;
  letter-spacing: 0.25em;
  margin-bottom: 12px;
}
.logo img {
  width: 140px;
}
.nav a {
  margin: 0 18px;
  font-size: 13px;
  text-decoration: none;
  color: #fff;
  opacity: 0.85;
}

.nav a:hover {
  opacity: 1;
}

/* First View */
.fv {
  height: 100vh;
  position: relative;
}

.fv-bg {
  position: fixed;
  inset: 0;
  background-image: url("img/bg-main.png");
  background-size: cover;
  background-position: center;
  z-index: -1;
}

.fv-content {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}
.fv-content span {
  color: #1457d9;
}

.fv h1 {
  font-size: 80px;
  letter-spacing: 0.1em;
  font-weight: 500;
  line-height: 1.1;
}

/* ABOUT */
.about-wrap {
  position: relative;
  height: 60vh; /* セクションの通過距離 */
  overflow: hidden; /* はみ出し防止 */
  background: #000; /* 黒背景 */
}

/* 背景画像 */
.about-bg {
  position: sticky; /* 画面に固定 */
  top: 0;
  width: 100%;
  height: 100vh; /* 画面いっぱい */
  background-image: url("img/bg-about.jpg");
  background-size: cover;
  background-position: center;
  z-index: 0;
}

/* テキスト */
.about-content {
  position: absolute; /* 親内で固定 */
  top: 0;
  left: 0;
  width: 100%;
  height: 100%; /* 親と同じ高さ */
  display: flex;
  flex-direction: column;
  justify-content: center; /* 縦中央 */
  align-items: center;     /* 横中央 */
  text-align: center;
  color: #fff; /* 白文字 */
  z-index: 2;  /* 背景より前面 */
  pointer-events: none;
}

.about-content h2 {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 24px;
}

.about-content p {
  font-size: 24px;
  line-height: 1.9;
  opacity: 0.9;
}

.about02-wrap {
  padding: 45px 0;
  background-color: #1457d9;
  background-image: url("img/bg-about02.png");
  background-repeat: no-repeat;
  background-position: bottom left;
}

/* テキスト */
.about02-content {
  text-align: center;
}

.about02-content p {
  width: 85%;
  max-width: 900px;
  margin: 0 auto;
  font-size: 20px;
  line-height: 1.9;
  opacity: 0.9;
}

/* BUSINESS */
.business-wrap {
  position: relative;
  background: #000;
  z-index: 1;
}

.split {
  display: flex;
  width: 100%;
  height: 60vh;
}

.split.reverse {
  flex-direction: row-reverse;
}

.split .image {
  width: 50%;
  background-size: cover;
  background-position: center;
}

.split .text {
  width: 50%;
  padding: 100px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.split h3 {
  font-size: 22px;
  margin-bottom: 24px;
  color: #1457d9;
}
.split h3 span {
  display: block;
  font-size: 18px;
  font-weight: normal;
  color: #fff;
}

.split p {
  font-size: 16px;
  line-height: 1.8;
  opacity: 0.85;
}


/* ACHIEVEMENT */
.achievement-wrap {
  padding: 30px 0;
  background: #333; /* 黒背景 */
}

/* テキスト */
.achievement-content {
}

.achievement-content .inner {
  width: 85%;
  max-width: 900px;
  margin: 0 auto;
}
.achievement-content .inner img {
  max-width: 100%;
  margin: 10px 0;
}
/* COMPANY */
.company-wrap {
  padding: 30px 0;
  background-image: url("img/bg-company.png");
  background-size: cover;
  background-position: center;
}

/* テキスト */
.company-content {
}

.company-content h2 {
  font-size: 32px;
  letter-spacing: 0.3em;
  margin-bottom: 24px;
  text-align: center;
}
.company-content .inner {
  width: 85%;
  max-width: 900px;
  margin: 0 auto;
  font-size: 18px;
  line-height: 1.9;
}
.company-content .inner dl {
}
.company-content .inner dl dt {
  padding: 10px 0 10px 10px;
  color: #1457d9;
  border-top: 1px solid #1457d9;
  border-bottom: 1px solid #1457d9;
}
.company-content .inner dl dd {
  padding: 10px 0 10px 10px;
  margin-bottom: 20px;
}

/* FOOTER */
footer {
  background-color: #000; /* 背景を黒に */
  color: #fff;            /* テキストを白に */
  text-align: center;
  padding: 40px 20px;
  font-size: 14px;
}

/* スマホ・タブレット向け */
@media (max-width: 768px) {
  .sp-none {
    display: none;
  }
  .fv {
    height: 80vh;
  }
  .fv-content {
    height: 80vh;
  }
  .fv h1 {
    font-size: 40px;
    letter-spacing: 0.15em;
    line-height: 1.1;
  }

  /* HERO テキスト */
  .hero-content h1 {
    font-size: 36px;
    line-height: 1.2;
    padding: 0 20px;
  }

  /* ABOUT テキスト */
  .about-content h2 {
    font-size: 24px;
  }
  .about-content p {
    font-size: 16px;
    line-height: 1.6;
    padding: 0 20px;
  }
  .about02-content p {
    font-size: 18px;
    line-height: 1.5;
  }

  /* BUSINESS セクション */
  .split, .split.reverse {
    flex-direction: column;
    height: auto; /* 高さ自動 */
  }
  .split .image, .split.reverse .image {
    width: 100%;
    height: 200px; /* スマホでの画像高さ */
    min-height: 150px;
  }
  .split .text, .split.reverse .text {
    width: 100%;
    padding: 40px 20px; /* 余白調整 */
    text-align: center;
  }
  .split h3 {
    font-size: 24px;
    margin-bottom: 16px;
  }
  .split p {
    font-size: 14px;
    line-height: 1.5;
  }

  /* COMPANY セクション */
  .company-content h2 {
    font-size: 24px;
  }
  .company-content p {
    font-size: 16px;
    line-height: 1.6;
    padding: 0 20px;
  }

  /* FOOTER */
  footer {
    padding: 30px 10px;
    font-size: 12px;
  }
}

@media (min-width: 768px) {
  .pc-none {
    display: none;
  }
  .about02-wrap {
    padding: 60px 0;
  }
  .achievement-wrap {
    padding: 50px 0;
  }

  .company-wrap {
    padding: 50px 0;
  }
  .company-content .inner {
    margin: 0 auto;
    font-size: 18px;
    line-height: 1.9;
  }
  .company-content .inner dl {
    display: flex;
    flex-wrap: wrap;
  }
  .company-content .inner dl dt {
    display: flex;
    align-items: center;
    width: 22%;
    padding: 15px;
    margin-right: 5%;
  }
  .company-content .inner dl dd {
    width: 73%;
    padding: 15px;
    margin-bottom: 0;
    border-top: 1px solid #fff;
    border-bottom: 1px solid #fff;
  }


  /* その他 */

ul {
  margin-left: 20px;
  list-style-type: disc;
  list-style-position: outside;
}