html,
body {
  width: 100%;
  min-width: 1440px;
}

.main {
  position: relative;
  padding-top: 68px;
}
.main > section {
  width: 100%;
  min-width: 1440px;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center center;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

/* 顶部背景区域 */
.hero-section {
  background: url('../../../img/scheme/sch/bg3.png') no-repeat center center;
  color: white;
  padding: 90px 0 60px;
  text-align: center;
}
.hero-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.hero-description {
  font-size: 16px;
  max-width: 800px;
  margin: 0 auto 30px;
  line-height: 1.6;
}
.hero-divider {
  width: 120px;
  height: 3px;
  background: white;
  margin: 0 auto;
}

/* 方案亮点区域 */
.features-section {
  padding: 80px 0;
  background: white;
}

.section-title {
  text-align: center;
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 60px;
  color: #333333;
  position: relative;
}

.feature-row {
  display: flex;
  align-items: center;
  margin-bottom: 40px;
}

.feature-row.reverse {
  flex-direction: row-reverse;
}
/* 为偶数行添加背景色 */
.feature-row:nth-child(odd) {
  background-color: #f8f7f7;
  width: 100%;
}

.feature-content {
  flex: 1;
  padding: 0 40px;
}

.feature-title {
  font-size: 28px;
  color: #333333;
  margin-bottom: 30px;
  font-weight: 600;
  text-align: left;
}

.feature-description {
  font-size: 16px;
  line-height: 1.8;
  color: #555;
}

.feature-image {
  height: 332px;
  width: 580px;
  /* background-color: #f1f3f6; */
  /* border-radius: 8px; */
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-placeholder {
  color: #999;
  font-size: 16px;
  text-align: center;
  /* border: 1px dashed gray; */
}
/* 方案组成部分 */
.components-section {
  padding: 60px 0 20px 0;
  background: #f8f9fa;
}

.components-container {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.component-card {
  display: flex;
  overflow: hidden;
}

.component-header {
  width: 180px;
  min-width: 180px;
  padding: 25px 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 600;
  color: #333333;
  text-align: center;
  line-height: 1.4;
}
.component-content {
  flex: 1;
  padding: 25px;
  display: flex;
  flex-direction: column;
}

/* 硬件设备样式 */
.hardware-items {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
  margin-bottom: 25px;
  flex-wrap: nowrap;
}

.hardware-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: calc(25% - 10px);
  margin-right: 40px;
  margin-top: 40px;
}

.hardware-item:last-child {
  margin-right: 0;
}

.hardware-image {
  width: 100%;
  height: 150px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 15px;
  background-color: #f9f9f9;
  color: #666;
  font-size: 14px;
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  /* border: 1px dashed gray; */
}

.hardware-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hardware-name {
  font-size: 15px;
  color: #1a1a1a;
  text-align: center;
  width: 100%;
  font-weight: 500;
}

/* 软件系统样式 */
.software-items {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
  margin-bottom: 25px;
  flex-wrap: nowrap;
}

.software-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: calc(25% - 30px);
  margin-right: 40px;
}

.software-item:last-child {
  margin-right: 0;
}

.software-image {
  width: 100%;
  height: 140px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 15px;
  background-color: #f9f9f9;
  color: #666;
  font-size: 14px;
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  /* border: 1px dashed #000;  */
}

.software-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.software-name {
  font-size: 15px;
  color: #1a1a1a;
  text-align: center;
  width: 100%;
  font-weight: 500;
}

.plus-sign {
  font-size: 28px;
  color: #999;
  font-weight: bold;
  margin-right: 40px;
  width: 20px;
  text-align: center;
}

/* 教学资源样式 */
.resources-items {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
  margin-bottom: 25px;
  flex-wrap: nowrap;
}

.resources-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: calc(25% - 30px);
  margin-right: 40px;
}

.resources-item:last-child {
  margin-right: 0;
}

.resources-image {
  width: 100%;
  height: 140px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 15px;
  background-color: #f9f9f9;
  color: #666;
  font-size: 14px;
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  /* border: 1px dashed #000;  */
}

.resources-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.resources-name {
  font-size: 16px;
  color: #1a1a1a;
  text-align: center;
  width: 100%;
  font-weight: 500;
}

/* 服务支持样式 */
.services-items {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
  margin-bottom: 25px;
  flex-wrap: nowrap;
}

.services-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: calc(25% - 30px);
  margin-right: 40px;
}

.services-item:last-child {
  margin-right: 0;
}

.services-image {
  width: 100%;
  height: 140px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 15px;
  background-color: #f9f9f9;
  color: #666;
  font-size: 14px;
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  /* border: 1px dashed #000; */
}

.services-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.services-name {
  font-size: 16px;
  color: #1a1a1a;
  text-align: center;
  width: 100%;
  font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 1300px) {
  .hardware-item,
  .software-item,
  .resources-item,
  .services-item {
    width: calc(25% - 20px);
  }

  .hardware-item,
  .software-item,
  .resources-item,
  .services-item {
    margin-right: 30px;
  }

  .plus-sign {
    margin-right: 30px;
  }
}

@media (max-width: 1200px) {
  .hardware-item,
  .software-item,
  .resources-item,
  .services-item {
    width: calc(25% - 15px);
  }

  .hardware-item,
  .software-item,
  .resources-item,
  .services-item {
    margin-right: 25px;
  }

  .plus-sign {
    margin-right: 25px;
  }
}

@media (max-width: 1100px) {
  .hardware-item,
  .software-item,
  .resources-item,
  .services-item {
    width: calc(25% - 10px);
  }

  .hardware-item,
  .software-item,
  .resources-item,
  .services-item {
    margin-right: 20px;
  }

  .plus-sign {
    margin-right: 20px;
  }
}

@media (max-width: 992px) {
  .software-items,
  .hardware-items,
  .resources-items,
  .services-items {
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
  }

  .hardware-item,
  .software-item,
  .resources-item,
  .services-item {
    margin-right: 0;
    width: calc(50% - 20px);
  }

  .plus-sign {
    display: none;
  }
}

@media (max-width: 768px) {
  .component-card {
    flex-direction: column;
  }

  .component-header {
    width: 100%;
    padding: 15px;
  }

  .hardware-item,
  .software-item,
  .resources-item,
  .services-item {
    width: 100%;
  }
}