/* =========================================================
   FUNCTION HERO SECTION / root対応
========================================================= */
.function--hero {
  background-color: var(--color-white);
  padding: 6rem 2rem;
  text-align: center;
}

/* ===== 導入テキスト中央揃え ===== */
.function__inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  padding: 0 20px;
}

.function__title {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 1rem;
}

.function__intro {
  font-size: 1.1rem;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 3rem;
}

/* ===== HERO本体 ===== */
.function--hero .function__inner {
  max-width: 1200px;
  margin: 0 auto;
}

.function--hero .function__title {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 1rem;
}

.function--hero .function__description {
  font-size: 1.6rem;
  color: var(--color-text);
  opacity: 0.85; /* #444相当 */
  margin-bottom: 3rem;
  line-height: 1.8;
}

/* ===== Links ===== */
.function--hero .function__links {
  display: flex;
  justify-content: center;
  gap: 2.4rem;
  flex-wrap: wrap;
  margin-top: 3rem;
}

.function--hero .function__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  background: var(--color-bg-alt); /* #f8f8f8 → 統一 */
  padding: 2rem;
  border-radius: 12px;
  width: 180px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.function--hero .function__link:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 10px rgba(0,0,0,0.08);
}

.function--hero .function__icon {
  width: 48px;
  height: auto;
  margin-bottom: 1rem;
}

.function--hero .function__label {
  font-size: 1.5rem;
  color: var(--color-text);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .function--hero .function__links {
    gap: 1.6rem;
  }

  .function--hero .function__link {
    width: 150px;
    padding: 1.6rem;
  }

  .function--hero .function__label {
    font-size: 1.4rem;
  }
}


/* =========================================================
   FUNCTION - MAIN SECTION（主要機能）/ root対応
========================================================= */
.function--main {
  background-color: var(--color-bg-alt); /* #f4fbfe → 統一背景 */
  padding: 6rem 2rem;
  text-align: center;
}

.function--main .function__inner {
  max-width: 1200px;
  margin: 0 auto;
}

.function--main .function__title {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4rem;
}

.function--main .function__grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4rem;
}

.function--main .function__item {
  width: 300px;
  text-align: center;
}

.function--main .function__image {
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: contain;
  margin-bottom: 2rem;
}

.function--main .function__name {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.function--main .function__desc {
  font-size: 1.5rem;
  color: var(--color-text);
  opacity: 0.85; /* #333相当トーン */
  line-height: 1.7;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .function--main .function__grid {
    gap: 2.4rem;
  }

  .function--main .function__item {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
  }

  .function--main .function__title {
    font-size: 2rem;
  }
}


/* =========================================================
   FUNCTION - 受付業務の効率化 / root対応
========================================================= */
.function--efficiency {
  background-color: var(--color-bg-alt); /* #e9f7fc → 共通背景に統一 */
  padding: 6rem 2rem;
}

.function--efficiency .function__inner {
  max-width: 1200px;
  margin: 0 auto;
}

.function--efficiency .function__title {
  text-align: center;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4rem;
}

.function--efficiency .function__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.function--efficiency .function__card {
  background-color: var(--color-white);
  border-radius: 12px;
  padding: 2.4rem;
  text-align: center;
  box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}

.function--efficiency .function__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60px;
  margin-bottom: 1rem;
}

.function--efficiency .function__icon img {
  width: 48px;
  height: auto;
}

.function--efficiency .function__name {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
  color: var(--color-text);
}

.function--efficiency .function__desc {
  font-size: 1.5rem;
  color: var(--color-text);
  opacity: 0.85; /* #555相当 */
  line-height: 1.7;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .function--efficiency .function__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .function--efficiency .function__grid {
    grid-template-columns: 1fr;
  }
}


/* =========================================================
   FUNCTION - SECURITY SECTION / root対応
========================================================= */
.function--security {
  background-color: var(--color-bg-alt); /* #f4f9fd → 共通背景 */
  padding: 6rem 2rem;
}

.function--security .function__inner {
  max-width: 1200px;
  margin: 0 auto;
}

.function--security .function__title {
  text-align: center;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4rem;
}

.function--security .function__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.function--security .function__card {
  background: var(--color-white);
  border-radius: 12px;
  padding: 2.4rem;
  text-align: center;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
}

.function--security .function__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60px;
  margin-bottom: 1.2rem;
}

.function--security .function__icon img {
  width: 48px;
  height: auto;
}

.function--security .function__name {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.8rem;
}

.function--security .function__desc {
  font-size: 1.5rem;
  color: var(--color-text);
  opacity: 0.85; /* #333 のトーンを再現 */
  line-height: 1.7;
}

.function--security .function__card--empty {
  visibility: hidden;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .function--security .function__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .function--security .function__grid {
    grid-template-columns: 1fr;
  }

  .function--security .function__title {
    font-size: 2rem;
  }
}


/* =========================================================
   FUNCTION - 200人以上の企業向け機能 / root対応
========================================================= */
.function--enterprise {
  background-color: var(--color-bg-alt); /* #eef5f9 → 統一 */
  padding: 6rem 2rem;
}

.function--enterprise .function__inner {
  max-width: 1200px;
  margin: 0 auto;
}

.function--enterprise .function__title {
  text-align: center;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4rem;
}

.function--enterprise .function__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.function--enterprise .function__card {
  background-color: var(--color-white);
  border-radius: 12px;
  padding: 2.4rem;
  text-align: center;
  box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}

.function--enterprise .function__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60px;
  margin-bottom: 1rem;
}

.function--enterprise .function__icon img {
  width: 48px;
  height: auto;
}

.function--enterprise .function__name {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
  color: var(--color-text);
}

.function--enterprise .function__desc {
  font-size: 1.5rem;
  color: var(--color-text);
  opacity: 0.85; /* #555相当のトーンに調整 */
  line-height: 1.7;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .function--enterprise .function__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .function--enterprise .function__grid {
    grid-template-columns: 1fr;
  }
}