/* banner区域 */
.banner {
  width: 100%;
  height: 56rem;
  /* 增加高度以匹配图片比例 */
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: white;
  background-color: #000;
  /* 备用背景色 */
}

.banner-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.banner-content {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  padding: 0 2rem;
}

.banner-title {
  font-size: 5.2rem;
  font-weight: bold;
  margin-bottom: 4rem;
  letter-spacing: 0.1rem;
  line-height: 1.2;
}

.banner-subtitle {
  font-size: 1.6rem;
  /* 增大描述文字字号 */
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.9);
  text-align: justify;
}

/* 响应式调整 */
@media (max-width: 76.8rem) {
  .banner {
    height: 40rem;
  }

  .banner-title {
    font-size: 3.2rem;
    margin-bottom: 2rem;
  }

  .banner-subtitle {
    font-size: 1.4rem;
  }
}

/* 业务问题板块 */
.business-problems {
  padding: 8rem 0;
  background-color: #f8f9fa;
}

.business-problems .section-title {
  font-size: 3.6rem;
  font-weight: bold;
  text-align: left;
  color: #333;
}

.problems-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 0;
  padding: 3.6rem 0;
}

.problem-card {
  width: 100%;
  height: auto;
  min-height: 18rem;
  background-color: white;
  border-radius: 1.4rem;
  padding: 2.8rem 3rem;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.problem-card:hover {
  transform: translateY(-0.5rem);
  box-shadow: 0 0.8rem 3rem rgba(0, 0, 0, 0.12);
}

.problem-header {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  margin-bottom: 1.4rem;
}

.problem-icon {
  flex-shrink: 0;
}

.icon-circle {
  width: 4.4rem;
  height: 4.4rem;
  border-radius: 50%;
  background:
    linear-gradient(#ffffff, #ffffff) padding-box,
    linear-gradient(135deg,
      rgba(35, 167, 253, 1) 0%,
      rgba(253, 26, 226, 1) 100%) border-box;
  border: 0.2rem solid transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #3a98fa;
  font-size: 1.8rem;
}

.icon-symbol {
  font-size: 2rem;
}

.problem-title {
  flex: 1;
  min-width: 0;
  font-size: 2rem;
  font-weight: 600;
  margin: 0;
  color: #333;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.problem-description {
  font-size: 1.4rem;
  line-height: 1.6;
  color: #666;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 分页样式已在 styles.css 统一定义 */
.pagination {
  margin-top: 4rem;
}

/* 响应式调整 */
@media (max-width: 76.8rem) {
  .business-problems {
    padding: 6rem 0;
  }

  .business-problems .section-title {
    font-size: 2.8rem;
    margin-bottom: 2.8rem;
  }

  .problems-container {
    gap: 2rem;
  }

  .problem-card {
    flex: 0 0 auto;
    width: 100%;
    padding: 2.4rem 2rem;
  }
}

@media (min-width: 76.9rem) and (max-width: 102.4rem) {
  .problems-container {
    gap: 2rem;
  }

  .problem-card {
    flex: 0 0 32rem;
    width: 32rem;
    padding: 3.5rem 2.5rem;
  }

  .problem-title {
    font-size: 1.8rem;
  }

  .problem-description {
    font-size: 1.3rem;
  }
}


/* 方案介绍 */
.program-introduction {
  padding: 8rem 0;
  background-color: #f8f9fa;
}

.program-introduction .section-title {
  font-size: 3.6rem;
  font-weight: bold;
  margin-bottom: 4rem;
  text-align: left;
  color: #333;
}

.introduction-container {
  padding: 3.6rem;
  background: white;
  border-radius: 2.4rem;
}

.introduction-description{
  color: #333;
  font-size: 1.6rem;
}
.introduction-picture{
  width: 100%;
}
.introduction-picture img{
  width: 100%;
}
/* 相关产品 */
.related-products {
  padding: 8rem 0;
  background-color: #F7F8FB;
}

.related-products .section-title {
  font-size: 3.6rem;
  font-weight: bold;
  margin-bottom: 4rem;
  color: #333;
}

.related-products-panel {
  background: #fff;
  border-radius: 2.4rem;
  padding: 5.6rem 6rem;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6rem;
  align-items: center;
}

.related-product-card {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform 0.3s ease;
}

.related-product-card:hover {
  transform: translateY(-0.6rem);
}

.related-product-icon {
  width: 7.2rem;
  height: 7.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.6rem;
}


.related-product-name {
  font-size: 2.4rem;
  font-weight: 500;
  color: #333;
  line-height: 1;
}

.related-product-desc {
  font-size: 1.4rem;
  color: #666;
  line-height: 1.2;
  margin-top: 1rem;
}

.related-product-btn {
  display: inline-flex;
  align-items: center;
  color: #8C8C8C;
  text-decoration: none;
  font-size: 1.4rem;
  transition: all 0.3s ease;
  background: #EDF0F5;
  padding: 1rem 2.4rem;
  border-radius: 3rem;
  width: fit-content;
  font-weight: 500;
  margin-top: 2.4rem;
}

.related-product-card:hover .related-product-btn {
  color: #666;
  background: #E5E8ED;
}

.related-product-btn .arrow {
  margin-left: 0.8rem;
  font-size: 1.2rem;
  line-height: 1;
  font-weight: 400;
}

@media (max-width: 102.4rem) {
  .related-products-panel {
    gap: 2.8rem;
    padding: 4.4rem 3.6rem;
  }
}

@media (max-width: 76.8rem) {
  .related-products-panel {
    grid-template-columns: 1fr;
    padding: 2.8rem 2rem;
    gap: 2.6rem;
  }

  .related-product-desc {
    min-height: 0;
  }
}

/* 案例故事区域 */
.case-stories {
  padding: 8rem 0;
  background-color: #f7f8fb;
}

.case-stories .section-title {
  font-size: 3.6rem;
  font-weight: bold;
  margin-bottom: 4rem;
  color: #333;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}

.case-card {
  background: #fff;
  border-radius: 2.4rem;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  display: flex;
  flex-direction: column;
  position: relative;
}

.case-card:hover {
  transform: translateY(-1.2rem);
  box-shadow: 0 3rem 6rem rgba(0, 0, 0, 0.08);
}

.case-image {
  width: 100%;
  height: 32rem;
  overflow: hidden;
  position: relative;
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.case-content {
  padding: 4rem 3.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  background: #fff;
  margin-top: -3rem;
  border-radius: 3.5rem 3.5rem 0 0;
  position: relative;
  z-index: 2;
}

.case-content h3 {
  font-size: 2.8rem;
  color: #333;
  margin-bottom: 2.5rem;
  font-weight: bold;
  line-height: 1.2;
}

.case-content p {
  font-size: 1.6rem;
  line-height: 1.8;
  color: #666;
  margin-bottom: 4rem;
  text-align: justify;
  flex: 1;
  opacity: 0.9;
}

.case-footer {
  margin-top: auto;
}

.gradient-line {
  height: 0.2rem;
  width: 100%;
  background: linear-gradient(90deg, #23a7fd 0%, #fd1ae2 100%);
  margin-bottom: 2.5rem;
  border-radius: 0.1rem;
  opacity: 0.8;
}

.case-footer>.case-detail {
  display: inline-flex;
  align-items: center;
  color: #666;
  text-decoration: none;
  font-size: 1.5rem;
  transition: all 0.3s ease;
  background: #f0f2f5;
  padding: 1rem 2.4rem;
  border-radius: 3rem;
  width: fit-content;
  font-weight: 500;
}

.case-detail:hover {
  color: #333;
  background: #e5e8ed;
  transform: translateX(0.3rem);
}

.case-detail .arrow {
  margin-left: 0.8rem;
  font-size: 1.8rem;
  line-height: 1;
  font-weight: 400;
}

@media (max-width: 102.4rem) {
  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 76.8rem) {
  .cases-grid {
    grid-template-columns: 1fr;
  }
}

/* 应用价值板块 */
.application-value {
  padding: 8rem 0;
  background-color: #f8f9fa;
}

.application-value .section-title {
  font-size: 3.6rem;
  font-weight: bold;
  text-align: left;
  color: #333;
}

.value-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: auto 1fr;
  gap: 2rem;
  padding: 3.6rem 0;
}

.value-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: grid;
  grid-template-rows: subgrid;
  grid-row: span 2;
  border-radius: 1.4rem;
}

.value-card:hover {
  transform: translateY(-0.5rem);
  box-shadow: 0 0.8rem 3rem rgba(0, 0, 0, 0.12);
}

.value-card:hover .value-header {
  background: linear-gradient(90deg, rgba(35, 167, 253, 1) 0%, rgba(253, 26, 226, 1) 100%);
}

.value-card:hover .value-title {
  color: white;
}

.value-header {
  background-color: #EDF0F5;
  padding: 2rem 3rem;
  display: flex;
  align-items: start;
  border-radius: 1.4rem 1.4rem 0 0;
}

.value-title {
  font-size: 2rem;
  font-weight: bold;
  margin: 0;
  color: #333;
  transition: color 0.3s ease;
}

.value-content {
  background-color: #ffffff;
  padding: 2rem 3rem 6rem 3rem;
  display: flex;
  align-items: flex-start;
  border-radius: 1.4rem;
  margin-top: -3rem;
}

.value-description {
  font-size: 1.4rem;
  line-height: 1.6;
  color: #666;
  margin: 0;
  text-align: justify;
}

@media (max-width: 76.8rem) {
  .application-value {
    padding: 6rem 0;
  }

  .application-value .section-title {
    font-size: 2.8rem;
    margin-bottom: 2.8rem;
  }

  .value-cards {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
    gap: 2rem;
  }

  .value-card {
    display: flex;
    flex-direction: column;
    grid-row: auto;
  }

  .value-header {
    padding: 1.8rem 2rem;
  }

  .value-content {
    padding: 1.8rem 2rem;
    flex: 1;
  }
}

@media (min-width: 76.9rem) and (max-width: 102.4rem) {
  .value-cards {
    gap: 2rem;
  }

  .value-header {
    padding: 2rem 2.5rem;
  }

  .value-content {
    padding: 2rem 2.5rem;
  }

  .value-title {
    font-size: 1.8rem;
  }

  .value-description {
    font-size: 1.3rem;
  }
}