@charset "UTF-8";
/* Base */
html {
  font-size: clamp(15px, 1.6vw, 20px);
}

body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.6;
  background: #ffffff;
  color: #333;
}

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 20px;
}

.lp-header {
  width: 100%;
  padding: 1.5rem 0;
}
.lp-header-inner {
  max-width: 40rem;
  margin: 0 auto;
  padding: 0;
}
.lp-header .lp-logo {
  width: 8rem;
  height: auto;
  display: block;
}

/* Hero */
.hero {
  width: 100%;
  height: 12rem;
  background-image: url("../img/hero.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: left;
}
.hero-inner {
  position: relative;
  padding-left: 1rem;
  margin-left: 1.6rem;
  text-align: left;
  color: #222;
}
.hero-inner::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 0.4rem;
  height: 100%;
  border-radius: 2px;
  background: linear-gradient(180deg, #38e9b4 0%, #27b1d6 100%);
}
.hero-title {
  font-size: 1.6rem;
  line-height: 1.6rem;
  letter-spacing: 0.1rem;
  margin: 0 0 0.3rem 0;
}
.hero-sub {
  font-size: 0.8rem;
  line-height: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05rem;
  margin: 0.3rem 0 1rem 0;
}

/* Document Section */
.document-list {
  margin: 40px auto 0;
  width: 90%;
}
.document-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px;
  margin-bottom: 32px;
  background: linear-gradient(#fff, #f2f2f2);
  border: 1px solid #e3e3e3;
  text-decoration: none;
  color: inherit;
}
.document-item:hover {
  opacity: 0.65;
}
.document-item .doc-info {
  max-width: 85%;
}
.document-item .doc-number {
  position: relative;
  margin-bottom: 1rem;
  padding-left: 1.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: #333;
  display: inline-block;
}
.document-item .doc-number::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1rem;
  height: 0.2rem;
  border-radius: 2px;
  background: linear-gradient(90deg, #38e9b4 0%, #27b1d6 100%);
}
.document-item .doc-title {
  font-size: 1.1rem;
  margin: 0;
  line-height: 1.4;
}
.document-item .doc-download img {
  width: 46px;
  height: 46px;
  display: block;
}

/* Footer */
.footer {
  margin: 10rem 0 5rem;
  text-align: center;
  color: #555;
}
.footer-note {
  font-size: 0.6rem;
}
.footer-copy {
  font-size: 0.6rem;
  margin-top: 1rem;
}

/* ───────────────────────── */
/* SP (390px 以下) */
/* ───────────────────────── */
@media (max-width: 390px) {
  .container {
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
  }
  .lp-header {
    width: 90%;
    margin: auto;
  }
  .lp-header-inner {
    max-width: inherit;
  }
  .lp-header .lp-logo {
    width: 8rem;
  }
  /* Hero */
  .hero {
    width: 100%;
    height: 9rem;
  }
  /* Document Section */
  .document-item .doc-info {
    max-width: 80%;
  }
  .document-item .doc-number {
    font-size: 1rem;
  }
  .document-item .doc-title {
    font-size: 1.4rem;
  }
  .document-item .doc-download img {
    width: 2.8rem;
    height: 2.8rem;
  }
  .footer {
    width: 90%;
    margin: 10rem auto 2rem;
  }
  .footer-note {
    font-size: 0.8rem;
  }
  .footer-copy {
    font-size: 0.8rem;
  }
}