.index_banner_title1 {
    font-size:54px;
    color:#fff;
    font-weight: bold;
    text-align: center;
    margin-bottom:30px;
}
.index_banner_text1 {
    color:#fff;
    font-size:18px;
    line-height: 2.5;
    text-align: center;
    margin:0 auto;
}
.index_title1 {
    font-size:48px;
    text-align: center;
    margin:0 0 25px 0;
    line-height:1.2;
    position: relative;
    padding:0 0 10px 0;
}
.index_title1::after {
    width:80px;
    height:4px;
    position: absolute;
    background:#0088cd;
    left:50%;
    bottom:0;
    content:"";
    transform:translateX(-50%);
}
@media (max-width: 768px) {
  .index_banner_title1 {font-size:28px;}
  .index_banner_text1 {
    font-size:16px;
    line-height:2;
  }
  .index_title1 {
    font-size:24px;
    text-align: center;
    margin:0 0 20px 0;
    line-height:1.2;
    position: relative;
    padding:0 0 10px 0;
  }
  .index_title1::after {
    width:60px;
    height:3px;
  }
}
/* ===== Product Categories Section ===== */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  text-align: left;
  width:1400px;
  margin:0 auto;
}

.category-card {
  background: #fff;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.category-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 15px rgba(0,0,0,0.15);
}

.category-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.card-content {
  padding: 5px 20px 10px 20px;
}

.card-content h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 10px;
  line-height:1.2;
}

.card-content h3 a {
  text-decoration: none;
  color: #222;
  transition: color 0.3s;
}

.card-content h3 a:hover {
  color: #0073e6; /* 鼠标悬停时高亮标题 */
}

.card-content p {
  color: #444;
  line-height: 1.5;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
    width:100%;
  }
}

@media (max-width: 768px) {
  .categories-grid {
    grid-template-columns: 1fr;
    width:100%;
  }  
  .card-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 5px;
  line-height:1.2;
}
.card-content h3 {
  font-size: 20px;
}
}


.index_about_img {
  width:100%;
}
.index_about_img img{
  display:inline-block;
  width:100%;
  height:auto;
}
.index_about_titlesub{
  color:#fff;
  text-transform: uppercase;
  margin:0 0 0 0;
  padding:0 0 0 0;
  font-weight: 600;
}
.index_about_title1{
  color:#fff;
  font-size:48px;
  line-height:1.2;
  position: relative;
  padding:0 0 20px 0;
  margin:20px 0 0 0;
}
.index_about_title1::after {
  content:"";
  position: absolute;
  width:80px;
  height:3px;
  left:0;
  bottom: 0;
  background:#ffffff;
}
.index_about_text1{
  color:#fff;
  line-height:2.5;
  margin:30px 0 0 0;
}
.index_adv_list {
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* 一行三列 */
  gap: 30px 30px; /* 行间距20px，列间距30px */
  list-style: none; /* 去掉默认的点 */
  margin: 40px 0 0 0;
  padding: 40px 0 0 0;
  border-top: 1px dotted rgba(255, 255, 255, 0.5);
}

.index_adv_list li {
  position: relative;
  padding-left: 28px; /* 给小图标留空间 */
  font-weight: 500;
  color: #fff; /* 白色文字 */
  line-height: 1.6;
}

/* 用伪元素添加小图标 */
.index_adv_list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 16px;
  height: 16px;
  background: url("../images/check-icon.webp") no-repeat center center;
}

@media (max-width: 768px) {
.index_about_title1{
  color:#fff;
  font-size:28px;
  line-height:1.2;
  position: relative;
  padding:0 0 15px 0;
  margin:15px 0 0 0;
}
.index_about_title1::after {
  width:60px;
  height:3px;
}
}


/* Why Choose Us - Card Layout */
.home_adv {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  padding: 10px;
  box-sizing: border-box;
}

/* 卡片整体布局：左图右文 */
.home_adv_card {
  background-color: #ffffff;
  padding: 40px 25px;
  border: 1px solid #ececec;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.04);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.home_adv_card:hover {
  transform: translateY(-6px);
  box-shadow: 0px 8px 20px rgba(0, 0, 0, 0.06);
}

/* 左侧图片容器 */
.home_adv_card_left {
  flex: 0 0 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.home_adv_card_left img {
  width: 80px;
  height: 80px;
  object-fit: contain;
  display: block;
}

/* 右侧文字内容 */
.home_adv_card_right {
  flex: 1 1 auto;
}

.home_adv_card_right h3 {
  margin: 0 0 15px 0;
  font-size: 24px;
  line-height:1.5;
}

.home_adv_card_right p {
  margin: 0;
  color: #444444;
  line-height: 2;
}

/* 响应式调整 - 平板及以下（单列显示） */
@media (max-width: 966px) {
  .home_adv {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 16px;
  }

  .home_adv_card {
    padding: 14px;
    gap: 12px;
  }

  .home_adv_card_left {
    flex: 0 0 56px;
  }

  .home_adv_card_left img {
    width: 48px;
    height: 48px;
  }

  .home_adv_card_right h3 {
    font-size: 16px;
    line-height: 20px;
  }

  .home_adv_card_right p {
    font-size: 14px;
    line-height: 20px;
  }
}

/* 手机端进一步缩小 */
@media (max-width: 768px) {
  .home_adv_card {
    gap: 10px;
  }

  .home_adv_card_left {
    flex: 0 0 48px;
  }

  .home_adv_card_left img {
    width: 40px;
    height: 40px;
  }

  .home_adv_card_right h3 {
    font-size: 15px;
    line-height: 18px;
  }

  .home_adv_card_right p {
    font-size: 13px;
    line-height: 18px;
  }
}

.factory_text1{
    text-align:center;
  }
  
 /* 工厂展示区容器 */
.factory_con {
  width: 1400px;
  max-width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
  padding: 20px;
}

/* 图片列表布局 */
.factory_list {
  display: grid;
  grid-template-columns: repeat(4, 1fr); /* 一行四列 */
  gap: 30px;
  list-style: none;
  padding: 0;
  margin: 0;
}

/* 每个图片单元 */
.factory_list_img {
  position: relative;
  overflow: hidden;
  border-radius: 6px; /* 图片圆角 */
  width: 100%;
  height: 0;
  padding-bottom: 60%; /* 固定比例，可调整图片高宽比例 */
}

/* 图片样式 */
.factory_list_img img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 6px;
  transition: transform 0.3s ease;
}

/* 悬停放大效果 */
.factory_list_img:hover img {
  transform: scale(1.05);
}

/* 文字层 */
.factory_list_text {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6); /* 半透明背景 */
  color: #ffffff;
  font-size: 18px;
  line-height: 1.5;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  padding: 10px;
  box-sizing: border-box;
  border-radius: 8px;
}

/* 悬停时显示文字 */
.factory_list_img:hover .factory_list_text {
  opacity: 1;
}

/* 响应式：平板两列 */
@media (max-width: 1024px) {
  .factory_list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 手机一列 */
@media (max-width: 768px) {
  .factory_list {
    grid-template-columns: 1fr;
  }
  .factory_list_text {
    font-size: 16px;
    line-height: 22px;
  }
}
.index_title2 {
    font-size:48px;
    color:#fff;
    margin:0 0 25px 0;
    line-height:1.2;
    position: relative;
    padding:0 0 0 80px;
}
.index_title2::after {
    width:60px;
    height:60px;
    position: absolute;
    background: url("../images/faq-icon.webp") no-repeat center center;
    background-size:60px 60px;
    left:0;
    top:0;
    content:"";
}

/* ===========================
   Sinotop FAQ Section
   =========================== */

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 25px;
  margin:20px 0 0 0;
}

.faq-item {
  background: #ffffff;
  border-radius: 6px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  background: #ffffff;
  border: none;
  outline: none;
  text-align: left;
  padding: 20px 25px;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.3s ease;
}

.faq-question:hover {
  background: #f0f0f0;
}
.faq-item.active .faq-question {
  background: #f0f0f0; /* 展开时的浅灰色 */
}
.faq-toggle-icon {
  font-size: 30px;
  line-height: 1;
  transition: transform 0.3s ease;
}

.faq-answer {
  padding: 0 25px;
  max-height: 0;
  overflow: hidden;
  line-height:2;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  padding: 10px 25px;
  max-height: 1000px; /* 适应最大内容 */
}

.faq-item.active .faq-toggle-icon {
  content: "−";
}
/* Responsive */
@media (max-width: 768px) {
  .faq-question {
    font-size: 16px;
  }
  .faq-answer {
    font-size: 14px;
  }
}
.index_title3 {
    font-size:36px;
    margin:0 0 15px 0;
    line-height:1.2;
    padding:0 0 0 0;
}
.index_form_text1 {
    line-height:2;
    margin:0 0 10px 0;
    padding:0;
}

/* 精选产品卡片容器 */
.featured-products-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 40px 30px; /* 纵向40px，横向30px */
    margin: 40px -15px 0 -15px;
}

/* 单个产品卡片: 一行4列 */
.featured-product-card {
    width: calc(25% - 22.5px); /* 4列布局，减去横向间距的一半 */
    background: #f5f5f5;
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.featured-product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.featured-product-card a {
    color: inherit;
    text-decoration: none;
}

/* 产品图片 */
.featured-product-card .product-image {
    width: 100%;
    padding-top: 100%; /* 高宽比 1:1 */
    background-size: cover;
    background-position: center;
}

/* 产品标题 */
.featured-product-card .product-title {
    padding: 15px;
    line-height:1.2;
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .featured-products-cards {
        padding:0 15px;
    }
    .featured-product-card {
        width: calc(33.333% - 20px); /* 一行3列 */
    }
}

@media (max-width: 768px) {
    .featured-products-cards {
        padding:0 15px;
        margin: 30px 0 0 0;
    }
    .featured-product-card {
        width: calc(50% - 15px); /* 一行2列 */
    }
    .index_title2 {
    font-size:28px;
    color:#fff;
    margin:0 0 25px 0;
    line-height:1.2;
    position: relative;
    padding:0 0 0 50px;
}
.index_title2::after {
    width:36px;
    height:36px;
    position: absolute;
    background: url("../images/faq-icon.webp") no-repeat center center;
    background-size:36px 36px;
    left:0;
    top:0;
    content:"";
}
.index_title3 {
    font-size:28px;
    margin:0 0 15px 0;
    line-height:1.2;
    padding:0 0 0 0;
}

}

@media (max-width: 480px) {
    .featured-product-card {
        width: calc(100% - 30px);/* 一行1列 */
        margin: 30px 0 0 0;
    }
}