/* ========== LUBEMAX - 关于我们 ========== */

/* Note: Base styles (body, a, img, ul) and CSS variables are defined in main.css */
/* Header, Navigation, Footer styles are also defined in main.css */

/* ========== Animations ========== */

.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== About Section ========== */

.about-section {
  padding: 80px 0 80px;
}

.about-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 60px;
  align-items: center;
}

.about-left {
  display: flex;
  flex-direction: column;
}

.about-heading {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text-dark);
  margin-bottom: 32px;
}

.about-text {
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-body);
  margin-bottom: 20px;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 48px;
}

.feature-item {
  text-align: center;
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  margin: 0 auto 12px;
}

.feature-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.feature-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.feature-desc {
  font-size: 12px;
  color: var(--text-light);
  line-height: 1.5;
}

/* Image */
.about-right {
  width: 100%;
}

.about-image {
  width: 100%;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.image-placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #e8e8e8 0%, #d0d0d0 100%);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.placeholder-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.placeholder-text {
  font-size: 14px;
  color: #999;
  font-weight: 400;
}

/* ========== Responsive ========== */

@media (max-width: 1024px) {
  .about-container {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 0 24px;
  }

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

@media (max-width: 768px) {
  .about-section {
    padding: 48px 0;
  }

  .about-container {
    padding: 0 16px;
  }

  .about-heading {
    font-size: 24px;
    margin-bottom: 24px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (max-width: 480px) {
  .about-heading {
    font-size: 22px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}