/* 全局字体：中文思源黑体Bold，英文MontserratBold */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "思源黑体 Bold", "Montserrat Bold", sans-serif;
}

/* 轮播图 */
.banner {
  position: relative;
  width: 100%;
  height: 500px;
  overflow: hidden;
  margin-top: 80px;
}
.banner-list {
  width: 100%;
  height: 100%;
}
.banner-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.5s ease;
}
.banner-item.active {
  opacity: 1;
}
.banner-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.banner-dots {
  position: absolute;
  bottom: 25px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}
.banner-dots .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: all 0.3s ease;
}
.banner-dots .dot.active {
  background: #00A846; /* 主色 科技绿 */
  transform: scale(1.2);
}

/* 主要产品 */
.product-section {
  padding: 70px 0;
  background: #fff;
}
.section-title {
  font-size: 30px;
  text-align: center;
  color: #333;
  margin-bottom: 15px;
}
.section-title::after {
  content: "";
  display: block;
  width: 70px;
  height: 3px;
  background: #00A846; /* 主色 科技绿 */
  margin: 14px auto 0;
}
.product-tab {
  display: flex;
  justify-content: center;
  gap: 50px;
  margin-bottom: 50px;
}
.tab-item {
  font-size: 18px;
  padding: 10px 0;
  cursor: pointer;
  color: #333;
  position: relative;
  transition: 0.3s;
}
.tab-item.active,
.tab-item:hover {
  color: #00A846; /* 主色 科技绿 */
}
.tab-item.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: #00A846; /* 主色 科技绿 */
  border-radius: 3px;
}
.product-content {
  width: 100%;
}
.content-item {
  display: none;
  align-items: center;
  gap: 60px;
}
.content-item.active {
  display: flex;
}
.product-img-box {
  position: relative;
  width: 550px;
  height: 350px;
  overflow: hidden;
  border-radius: 6px;
}
.product-img-list {
  width: 100%;
  height: 100%;
}
.product-img-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.6s ease;
  cursor: pointer;
}
.product-img-item.active {
  opacity: 1;
}
.product-img-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-img-item a {
  cursor: pointer;
  display: block;
  width: 100%;
  height: 100%;
}
.pro-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background: rgba(0,0,0,0.3);
  color: #fff;
  text-align: center;
  line-height: 40px;
  font-size: 20px;
  cursor: pointer;
  z-index: 2;
  border-radius: 50%;
  user-select: none;
}
.pro-arrow.prev {
  left: 10px;
}
.pro-arrow.next {
  right: 10px;
}
.content-text {
  flex: 1;
}
.content-text h3 {
  font-size: 24px;
  margin-bottom: 20px;
  color: #333;
}
.content-text p {
  font-size: 16px;
  line-height: 1.9;
  color: #666;
}

/* 公司介绍 */
.company-section {
  padding: 70px 0;
  background: #f8f9fc;
  position: relative;
  overflow: hidden;
}
.company-container {
  position: relative;
  z-index: 2;
  text-align: center;
}
.company-title {
  font-size: 32px;
  color: #222;
  margin-bottom: 15px;
}
.company-title::after {
  content: "";
  display: block;
  width: 80px;
  height: 3px;
  background: #00A846; /* 主色 科技绿 */
  margin: 15px auto 0;
}
.company-subtitle {
  font-size: 16px;
  color: #666;
  margin-bottom: 30px;
}
.company-desc {
  max-width: 800px;
  margin: 0 auto 30px;
  font-size: 16px;
  line-height: 1.8;
  color: #444;
}
.company-btn {
  display: inline-block;
  color: #00A846; /* 主色 科技绿 */
  font-size: 16px;
  text-decoration: none;
  margin-bottom: 60px;
}
.company-btn:hover {
  text-decoration: underline;
}
.company-stats {
  display: flex;
  justify-content: space-around;
  align-items: center;
}
.stat-item {
  text-align: center;
}
.stat-number {
  font-size: 48px;
  font-weight: bold;
  color: #00A846; /* 主色 科技绿 */
  margin-bottom: 10px;
}
.stat-label {
  font-size: 16px;
  color: #444;
}

/* 合作伙伴 + 解决方案 */
.partner-section {
  padding: 70px 0;
  background: #f5f7fa;
  position: relative;
  overflow: hidden;
}
.partner-bg {
  display: none;
}
.partner-container {
  position: relative;
  z-index: 2;
  text-align: center;
}
.partner-title {
  font-size: 30px;
  font-weight: 500;
  color: #333;
  margin-bottom: 15px;
}
.partner-title::after {
  content: "";
  display: block;
  width: 70px;
  height: 3px;
  background: #00A846; /* 主色 科技绿 */
  margin: 14px auto 0;
}
.partner-desc {
  max-width: 900px;
  margin: 0 auto 40px;
  font-size: 15px;
  line-height: 1.8;
  color: #666;
}
.logo-scroll-wrap {
  width: 100%;
  overflow: hidden;
  margin-bottom: 50px;
  background: #ffffff;
  padding: 20px 0;
  border-radius: 6px;
}
.logo-scroll {
  display: flex;
  animation: logoScroll 22s linear infinite;
}
.logo-item {
  flex-shrink: 0;
  width: 130px;
  height: 65px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 20px;
}
.logo-item img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}
@keyframes logoScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.solution-wrap {
  display: flex;
  justify-content: center;
  gap: 30px;
}
.solution-card {
  width: 32%;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
}
.solution-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  cursor: pointer;
}
.solution-title {
  font-size: 17px;
  margin: 16px 0;
  color: #333;
}
.solution-btn {
  display: inline-block;
  color: #00A846; /* 主色 科技绿 */
  font-size: 15px;
  margin-bottom: 16px;
  text-decoration: none;
}
.solution-btn:hover {
  text-decoration: underline;
}

/* 新闻资讯 */
.news-section {
  padding: 70px 0;
  background: #fff;
}
.news-title {
  text-align: center;
  font-size: 32px;
  color: #333;
  margin-bottom: 15px;
}
.news-title::after {
  content: "";
  display: block;
  width: 80px;
  height: 3px;
  background: #00A846; /* 主色 科技绿 */
  margin: 15px auto 0;
}
.news-subtitle {
  text-align: center;
  font-size: 16px;
  color: #666;
  margin-bottom: 40px;
}
.news-wrap {
  display: flex;
  justify-content: center;
  gap: 30px;
}
.news-card {
  width: 32%;
  background: #f5f5f5;
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow 0.3s;
}
.news-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* 重点：悬浮整个卡片 → 标题变科技绿 */
.news-card:hover .news-title-item a {
  color: #00A846; /* 主色 科技绿 */
}

.news-img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}
.news-info {
  padding: 20px;
}
.news-title-item {
  font-size: 17px;
  margin-bottom: 10px;
}
/* 默认全部黑色 */
.news-title-item a {
  color: #333;
  text-decoration: none;
}
.news-date {
  font-size: 14px;
  color: #999;
  margin-bottom: 15px;
}
.news-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #666;
  margin-bottom: 15px;
}
.news-arrow {
  font-size: 20px;
  color: #666;
}