/* ========================================
   About - Business Area (사업영역 공통)
   ======================================== */

/* Section Intro */
.about-biz__intro {
  background-color: var(--color-white);
  padding: var(--space-4xl) 0 0;
  text-align: center;
}

.about-biz__intro-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
}

.about-biz__intro-en {
  font-size: 3rem;
  font-weight: 700;
  color: #000;
  letter-spacing: -0.04em;
  line-height: 1.15;
  font-family: var(--font-primary);
}

.about-biz__intro-desc {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text);
  letter-spacing: -0.06rem;
  line-height: 1.7;
}

/* Product Cards */
.about-biz__products {
  background-color: var(--color-white);
  padding: var(--space-2xl) 0 var(--space-4xl);
}

.about-biz__products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
}

.about-biz__product-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.about-biz__product-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.about-biz__product-img {
  width: 100%;
  height: 220px;
  overflow: hidden;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
}

.about-biz__product-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-biz__product-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-dark);
  letter-spacing: -0.06rem;
  line-height: 1.4;
}

.about-biz__product-desc {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-dark);
  letter-spacing: -0.045rem;
  line-height: 1.5;
}

.about-biz__product-features {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text);
  letter-spacing: -0.045rem;
  line-height: 1.7;
}

.about-biz__product-features p {
  margin-bottom: 0;
  padding-left: 1.1em;
  text-indent: -1.1em;
}

/* Partners */
.about-biz__partners {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: var(--space-4xl) 0;
}

.about-biz__partners-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
}

.about-biz__partners-heading {
  border-left: 3px solid var(--color-primary);
  padding-left: var(--space-lg);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-dark);
  letter-spacing: -0.06rem;
  line-height: 1.4;
}

.about-biz__partners-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.about-biz__partner-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
}

.about-biz__partner-logo {
  width: 100%;
  height: 80px;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

.about-biz__partner-logo img {
  max-width: 70%;
  max-height: 60%;
  object-fit: contain;
}

.about-biz__partner-name {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-dark);
  letter-spacing: -0.04rem;
  text-align: center;
  line-height: 1.5;
}

/* Tablet */
@media (min-width: 768px) {
  .about-biz__intro {
    padding: var(--space-5xl) 0 0;
  }

  .about-biz__products {
    padding: var(--space-3xl) 0 var(--space-5xl);
  }

  .about-biz__partners {
    padding: var(--space-5xl) 0;
  }

  .about-biz__products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .about-biz__products-grid--col3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .about-biz__product-card {
    gap: var(--space-2xl);
    padding: 2rem;
  }

  .about-biz__product-title {
    font-size: var(--text-subtitle);
    letter-spacing: -0.07rem;
  }

  .about-biz__product-desc {
    font-size: var(--text-regular);
    letter-spacing: -0.045rem;
  }

  .about-biz__product-features {
    font-size: var(--text-regular);
    letter-spacing: -0.045rem;
  }

  .about-biz__partners-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .about-biz__partner-logo {
    height: 100px;
  }

  .about-biz__intro-en {
    font-size: 3rem;
    letter-spacing: -0.05em;
  }

  .about-biz__partners-heading {
    font-size: var(--text-h2);
    letter-spacing: -0.09rem;
  }

  .about-biz__partner-name {
    font-size: var(--text-body);
    letter-spacing: -0.055rem;
  }

  .about-biz__intro-desc {
    font-size: var(--text-body);
    letter-spacing: -0.055rem;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .about-biz__intro {
    padding: var(--space-section) 0 0;
  }

  .about-biz__products {
    padding: var(--space-4xl) 0 var(--space-section);
  }

  .about-biz__partners {
    padding: var(--space-section) 0;
  }

  .about-biz__intro-en {
    font-size: 3.5rem;
    letter-spacing: -0.06em;
  }

  .about-biz__product-card {
    padding: 2.5rem;
  }

  .about-biz__product-img {
    height: 300px;
  }

  .about-biz__partner-logo {
    height: 120px;
  }

  .about-biz__products-grid {
    gap: var(--space-xl);
  }
}