*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #ffffff;
  color: #000000;
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Hiragino Sans",
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    "YuGothic",
    "Meiryo",
    sans-serif;
  line-height: 1.8;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

.wrap {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.narrow {
  width: min(760px, 90%);
  margin: 0 auto;
}

.hero {
  padding: 56px 0 70px;
  background: #ffffff;
}

.prehead {
  margin: 0 0 18px;
  font-size: 0.95rem;
  line-height: 1.8;
  color: #5f6b76;
}

.hero h1 {
  margin: 0;
  max-width: 900px;
  font-size: clamp(2.1rem, 5vw, 3.7rem);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #111111;
}

.band {
  padding: 40px 0;
  background: #e9ecef;
}

.band-title {
  margin: 0 0 14px;
  text-align: center;
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  line-height: 1.45;
  font-weight: 700;
  color: #111111;
}

.band-text {
  margin: 0;
  text-align: center;
  font-size: 1.12rem;
  line-height: 1.8;
  color: #000000;
}

.article-block {
  padding: 72px 0 20px;
  background: #ffffff;
}

.article-wrap {
  width: min(760px, 90%);
  margin: 0 auto;
}

.article-wrap h2 {
  margin: 0 0 44px;
  padding-bottom: 10px;
  text-align: left;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.4;
  font-weight: 700;
  color: #111111;
  border-bottom: 2px solid #d8e6f2;
}

.article-wrap p {
  margin: 0 0 30px;
  text-align: left;
  font-size: 1.2rem;
  line-height: 2;
  font-weight: 400;
  color: #000000;
}

.mini-card {
  width: 100%;
  max-width: 360px;
  padding: 18px 18px 10px;
  background: #e8f4ff;
  border-radius: 0;
}

.mini-card h3 {
  margin: 0 0 10px;
  text-align: left;
  font-size: 1.3rem;
  line-height: 1.6;
  font-weight: 700;
  color: #111111;
}

.mini-card p {
  margin: 0;
  text-align: left;
  font-size: 1.1rem;
  line-height: 1.7;
  color: #5f6b76;
}

.mini-card {
  width: 100%;
  max-width: 360px;
  padding: 20px 20px 15px;
  background: #DoE8FF;
  border-radius: 16px;
}

.single {
  margin: 12px auto 0;
}

.reason-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 18px;
  margin-top: 12px;
}

.reason-grid .mini-card {
  max-width: none;
}

.cta-band {
  padding: 42px 0 48px;
  background: #efefef;
  margin-top: 36px;
}

.cta-text {
  margin: 0 0 24px;
  text-align: center;
  font-size: 1.05rem;
  line-height: 1.9;
  color: #000000;
}

.cta-button {
  display: block;
  width: fit-content;
  min-width: 260px;
  margin: 0 auto;
  padding: 20px 42px;
  background: linear-gradient(180deg, #f8b126 0%, #f29a00 100%);
  color: #111111;
  font-size: 1.35rem;
  line-height: 1;
  font-weight: 700;
  border-radius: 16px;
  box-shadow: 0 8px 18px rgba(242, 154, 0, 0.24);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cta-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(242, 154, 0, 0.28);
}

.ps-block {
  padding-top: 78px;
}

.cta-band-last {
  margin-top: 10px;
}

.footer {
  padding: 26px 0 5px;
  background: #ffffff;
}

.footer p {
  margin: 0 0 8px;
  text-align: center;
  font-size: 0.9rem;
  line-height: 1.0;
  color: #8b8b8b;
}

.footer a {
  color: #8b8b8b;
}

.footer a:hover {
  text-decoration: underline;
}

@media (max-width: 820px) {
  .hero {
    padding: 40px 0 34px;
  }

  .band {
    padding: 30px 0;
  }

  .article-block {
    padding: 54px 0 10px;
  }

  .article-wrap p {
    font-size: 1rem;
    line-height: 1.95;
  }

  .reason-grid {
    grid-template-columns: 1fr;
  }

  .mini-card,
  .single {
    max-width: 100%;
  }

  .cta-band {
    margin-top: 44px;
    padding: 34px 0 40px;
  }

  .cta-button {
    min-width: 190px;
    font-size: 1.08rem;
  }

  .ps-block {
    padding-top: 60px;
  }
}

.text-large {
  font-size: 1.4em;
  font-weight: 700;
  color: #000000;
}

.text-small {
  font-size: 1.1rem;
  line-height: 1.5;
  color: #000000;
}