/* 通信设备信息发布平台 - 首页样式 */
/* 基于 Figma 设计稿布局风格 */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Poppins', 'Microsoft YaHei', sans-serif;
  line-height: 1.6;
  color: #1b1b1b;
  background: #fff;
  overflow-x: hidden;
}

.zh_container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}

/* Hero Banner - 左右布局 */
.zh_hero_banner {
  padding: 120px 0 80px;
  background: #fff;
}

.zh_hero_layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.zh_hero_left {
  padding-right: 40px;
}

.zh_hero_title {
  font-size: 52px;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 25px;
  color: #1b1b1b;
}

.zh_text_red {
  color: #e60000;
}

.zh_hero_desc {
  font-size: 18px;
  line-height: 1.6;
  color: #505050;
  margin-bottom: 35px;
  font-weight: 300;
}

.zh_hero_actions {
  display: flex;
  gap: 15px;
  margin-bottom: 40px;
}

.zh_btn_hero {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: #e60000;
  color: #fff;
  text-decoration: none;
  border-radius: 28px;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s;
}

.zh_btn_hero:hover {
  background: #cc0000;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(230, 0, 0, 0.3);
}

.zh_btn_hero_outline {
  background: transparent;
  border: 2px solid #e60000;
  color: #e60000;
}

.zh_btn_hero_outline:hover {
  background: #e60000;
  color: #fff;
}

.zh_hero_right {
  position: relative;
}

.zh_hero_card {
  height: 550px;
  background: #c4c4c4;
  border-radius: 30px;
  overflow: hidden;
}

/* About Section - 深色+浅色卡片 */
.zh_about_section {
  padding: 80px 0;
  background: #fff;
}

.zh_about_layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
}

.zh_about_dark_card {
  background: linear-gradient(135deg, #1b1b1b 0%, #3d3d3d 100%);
  color: #fff;
  padding: 60px 50px;
  border-radius: 30px;
}

.zh_about_title {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 25px;
}

.zh_about_desc {
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 30px;
}

.zh_about_btn {
  display: inline-block;
  padding: 12px 28px;
  background: #e60000;
  color: #fff;
  text-decoration: none;
  border-radius: 24px;
  font-weight: 600;
  transition: all 0.3s;
}

.zh_about_btn:hover {
  background: #cc0000;
  transform: translateY(-2px);
}

.zh_about_light_card {
  background: rgba(252, 226, 226, 0.5);
  padding: 50px 40px;
  border-radius: 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.zh_about_feature_title {
  font-size: 26px;
  font-weight: 600;
  color: #1b1b1b;
  margin-bottom: 15px;
}

.zh_about_feature_desc {
  font-size: 15px;
  line-height: 1.7;
  color: #505050;
}

/* 设备展示区域 - 交换机和路由器 */
.zh_equipment_section {
  padding: 80px 0;
  background: #fff;
}

.zh_equipment_router {
  background: #f8f8f8;
}

.zh_section_header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 50px;
}

.zh_section_title_left {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.3;
  color: #1b1b1b;
}

.zh_view_more_btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: transparent;
  border: 2px solid #e60000;
  color: #e60000;
  text-decoration: none;
  border-radius: 24px;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.3s;
}

.zh_view_more_btn:hover {
  background: #e60000;
  color: #fff;
  transform: translateY(-2px);
}

.zh_equipment_grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.zh_equipment_card {
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.3s;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.zh_equipment_card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 35px rgba(230, 0, 0, 0.15);
}

.zh_equipment_img {
  width: 100%;
  height: 240px;
  overflow: hidden;
  background: #f5f5f5;
}

.zh_equipment_img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.zh_equipment_card:hover .zh_equipment_img img {
  transform: scale(1.05);
}

.zh_equipment_content {
  padding: 25px;
}

.zh_equipment_title {
  font-size: 20px;
  font-weight: 600;
  color: #1b1b1b;
  margin-bottom: 12px;
  line-height: 1.3;
}

.zh_equipment_desc {
  font-size: 14px;
  line-height: 1.6;
  color: #666;
  margin-bottom: 20px;
}

.zh_equipment_link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #e60000;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.3s;
}

.zh_equipment_link:hover {
  gap: 12px;
}

/* 平台特点 */
.zh_features_section {
  padding: 80px 0;
  background: #fff;
}

.zh_features_title {
  text-align: center;
  font-size: 42px;
  font-weight: 700;
  color: #1b1b1b;
  margin-bottom: 60px;
}

.zh_features_layout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.zh_feature_card_large {
  background: linear-gradient(135deg, #f8f8f8 0%, #fff 100%);
  padding: 50px 40px;
  border-radius: 30px;
  border: 1px solid #e8e8e8;
  transition: all 0.3s;
}

.zh_feature_card_large:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.08);
  border-color: #e60000;
}

.zh_feature_icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, #e60000, #ff4d4d);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 25px;
}

.zh_feature_icon i {
  font-size: 32px;
  color: #fff;
}

.zh_feature_card_title {
  font-size: 24px;
  font-weight: 600;
  color: #1b1b1b;
  margin-bottom: 15px;
}

.zh_feature_card_desc {
  font-size: 15px;
  line-height: 1.7;
  color: #666;
}

/* 平台介绍区域 */
.zh_platform_intro {
  padding: 80px 0;
  background: #f8f8f8;
}

.zh_platform_layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.zh_platform_image {
  height: 500px;
  background: #c4c4c4;
  border-radius: 30px;
  overflow: hidden;
}

.zh_platform_right {
  padding-left: 20px;
}

.zh_platform_title {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.3;
  color: #1b1b1b;
  margin-bottom: 25px;
}

.zh_platform_desc {
  font-size: 16px;
  line-height: 1.8;
  color: #505050;
  margin-bottom: 30px;
}

.zh_platform_features {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-bottom: 35px;
}

.zh_platform_feature_item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  color: #1b1b1b;
}

.zh_platform_feature_item i {
  font-size: 20px;
  color: #e60000;
}

.zh_platform_cta_btn {
  display: inline-block;
  padding: 14px 32px;
  background: #e60000;
  color: #fff;
  text-decoration: none;
  border-radius: 28px;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s;
}

.zh_platform_cta_btn:hover {
  background: #cc0000;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(230, 0, 0, 0.3);
}

/* CTA 区域 */
.zh_cta_section {
  padding: 80px 0;
  background: #fff;
}

.zh_cta_card {
  background: linear-gradient(135deg, #e60000 0%, #ff6b6b 100%);
  padding: 80px 60px;
  border-radius: 40px;
  text-align: center;
  color: #fff;
}

.zh_cta_title {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 20px;
}

.zh_cta_desc {
  font-size: 18px;
  margin-bottom: 40px;
  opacity: 0.95;
}

.zh_cta_buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.zh_cta_btn_primary,
.zh_cta_btn_secondary {
  display: inline-block;
  padding: 14px 36px;
  text-decoration: none;
  border-radius: 28px;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s;
}

.zh_cta_btn_primary {
  background: #fff;
  color: #e60000;
}

.zh_cta_btn_primary:hover {
  background: #f8f8f8;
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(255, 255, 255, 0.3);
}

.zh_cta_btn_secondary {
  background: transparent;
  color: #fff;
  border: 2px solid #fff;
}

.zh_cta_btn_secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-3px);
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .zh_container {
    padding: 0 30px;
  }

  .zh_hero_layout,
  .zh_about_layout,
  .zh_platform_layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .zh_equipment_grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .zh_features_layout {
    grid-template-columns: 1fr;
  }

  .zh_hero_title {
    font-size: 42px;
  }

  .zh_section_title_left,
  .zh_platform_title {
    font-size: 36px;
  }
}

@media (max-width: 768px) {
  .zh_hero_banner {
    padding: 80px 0 60px;
  }

  .zh_hero_title {
    font-size: 36px;
  }

  .zh_hero_actions {
    flex-direction: column;
  }

  .zh_hero_card {
    height: 350px;
  }

  .zh_equipment_grid {
    grid-template-columns: 1fr;
  }

  .zh_section_header {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .zh_about_dark_card,
  .zh_about_light_card {
    padding: 40px 30px;
  }

  .zh_cta_card {
    padding: 50px 30px;
  }

  .zh_cta_title {
    font-size: 32px;
  }

  .zh_cta_buttons {
    flex-direction: column;
  }
}