/*2025产品中心-样式*/
.prod{width:100%;height:300px;background-color:#204e8c; margin:0px;border:0px solid #fff000;text-align:center;}
.prod_img{width:100%;height:300px;background:url(../images/zl_head_02.jpg)  no-repeat center 0px;}
/*2025企业简介、企业文化-样式*/


/* ===== 产品详情页 - 完整响应式优化版 ===== */

/* ===== 主容器 ===== */
.prcont {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

/* ===== 标题区域 ===== */
.cptitle {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 350;
  color: #000000;
  min-height: 60px;
  line-height: 1.5;
  text-align: center;
  width: 100%;
  max-width: 1000px;
  margin: 60px auto 30px;
  padding-bottom: 15px;
  border-bottom: 2px solid #e8e8e8;
}

/* ===== 产品图片 ===== */
.cppic {
  text-align: center;
  margin: 20px auto;
  width: 100%;
  max-width: 600px;
  padding: 15px;
  border: 1px solid #e8e8e8;
  border-radius: 12px;
  background: #fafbfc;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  position: relative;
  cursor: zoom-in;
  box-sizing: border-box;
}

.cppic img {
  transition: transform 0.5s ease;
  max-width: 100%;
  height: auto;
  max-height: 450px;
  display: block;
  margin: 0 auto;
  border-radius: 8px;
}

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

/* 放大镜图标 */
.cppic::after {
  content: '🔍';
  position: absolute;
  bottom: 20px;
  right: 20px;
  font-size: 20px;
  opacity: 0;
  transition: opacity 0.3s ease;
  background: rgba(255, 255, 255, 0.8);
  padding: 8px 12px;
  border-radius: 50%;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  pointer-events: none;
}

.cppic:hover::after {
  opacity: 1;
}

/* ===== 产品详情选项卡 - 立体投影 ===== */
.product-detail {
  width: 100%;
  max-width: 1200px;
  margin: 40px auto;
  padding: 0 15px;
  box-sizing: border-box;
}

.product-detail .tab-title {
  margin-top: 15px;
  border-bottom: 2px solid #e8e8e8;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 5px;
  position: relative;
  z-index: 2;
}

.product-detail .tab-title a {
  padding: 10px 25px;
  line-height: 35px;
  font-size: clamp(14px, 1.2vw, 18px);
  color: #333333;
  text-align: center;
  text-decoration: none;
  border-radius: 8px 8px 0 0;
  transition: all 0.3s ease;
  background: #f5f5f5;
  white-space: nowrap;
  position: relative;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.04);
}

.product-detail .tab-title a:hover {
  background: #e8e8e8;
  transform: translateY(-2px);
}

.product-detail .tab-title a.active {
  background: linear-gradient(135deg, #d20000, #b00000);
  color: #ffffff;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1), 0 4px 20px rgba(210, 0, 0, 0.35);
}

/* 内容区域 - 立体投影 */
.product-detail .tab-content {
  display: none;
  padding: 35px 30px;
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.8;
  text-align: justify;
  text-indent: 2em;
  background: #ffffff;
  border-radius: 0 0 16px 16px;
  animation: fadeIn 0.4s ease;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04), 0 20px 60px rgba(0, 0, 0, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(200, 210, 220, 0.2);
  border-top: none;
  position: relative;
}

/* 底部光晕 */
.product-detail .tab-content::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 5%;
  width: 90%;
  height: 12px;
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(6px);
  z-index: -1;
}

/* 顶部高光装饰线 */
.product-detail .tab-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 20%;
  right: 20%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(210, 0, 0, 0.15), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.product-detail .tab-content:hover::before {
  opacity: 1;
}

.product-detail .tab-content:first-of-type {
  display: block;
}

.product-detail .tab-content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 10px auto;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

/* ===== 动画 - 仅定义一次 ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== 感兴趣产品轮播 ===== */
.zl_frbox {
  min-height: 380px;
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  box-sizing: border-box;
}

.zl_frBtnL,
.zl_frBtnR {
  cursor: pointer;
  height: 53px;
  width: 28px;
  flex-shrink: 0;
  transition: opacity 0.3s ease;
}

.zl_frBtnL:hover,
.zl_frBtnR:hover {
  opacity: 0.7;
}

.zl_frUl {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.zl_frUl ul {
  display: flex;
  gap: 20px;
  list-style: none;
  transition: transform 0.5s ease;
  padding: 0;
  margin: 0;
}

.zl_frUl ul li {
  flex: 0 0 calc(25% - 15px);
  min-width: 180px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.zl_frUl ul li:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.zl_frUl ul li a {
  display: block;
  text-decoration: none;
}

.zl_frUl ul li a img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

/* 产品信息覆盖层 */
.zl_zc {
  width: 100%;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(78, 164, 181, 0.85);
  padding: 15px 20px;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}

.zl_zc_p h3 {
  font-size: clamp(13px, 1vw, 15px);
  font-weight: 400;
  color: #ffffff;
  line-height: 1.4;
  margin: 0;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* 隐藏不需要的元素 */
.zl_zc_i,
.zl_zc_hover,
.zl_zc_p h3 span,
.zl_zc_i h1 {
  display: none;
}

/* ===== 上下篇导航 ===== */
.listnews {
  width: 100%;
  max-width: 1200px;
  margin: 30px auto;
  border: 1px solid #e8e8e8;
  border-radius: 12px;
  padding: 15px 20px;
  background: #fafbfc;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  box-sizing: border-box;
}

/* 左侧容器：上一篇和下一篇垂直排列 */
.listnews-left {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.listnews_prev {
  width: 100%;
  font-size: 14px;
  line-height: 1.8;
  padding: 4px 0;
}

.listnews_prev a {
  color: #333333;
  text-decoration: none;
  transition: color 0.3s ease;
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  vertical-align: middle;
}

.listnews_prev a:hover {
  color: #d20000;
}

/* 上一篇标签 */
.listnews_prev:first-child::before {
  content: '上一篇：';
  color: #999999;
  font-weight: 500;
  margin-right: 6px;
}

/* 下一篇标签 */
.listnews_prev:last-child::before {
  content: '下一篇：';
  color: #999999;
  font-weight: 500;
  margin-right: 6px;
}

/* 分割线 */
.listnews_prev:first-child {
  border-bottom: 1px solid #e8e8e8;
  padding-bottom: 8px;
}

.listnews_prev:last-child {
  padding-top: 8px;
}

/* 隐藏br */
.listnews_prev br {
  display: none !important;
}

/* ===== 返回列表按钮 ===== */
.listnews_fh {
  flex-shrink: 0;
  min-width: 120px;
  height: 40px;
  background: linear-gradient(135deg, #999999, #777777);
  color: #ffffff;
  text-align: center;
  line-height: 40px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  transition: all 0.3s ease;
}

.listnews_fh:hover {
  background: linear-gradient(135deg, #d20000, #aa0000);
  transform: scale(1.02);
}

.listnews_fh a {
  color: #ffffff;
  text-decoration: none;
  display: block;
  width: 100%;
  height: 100%;
}

.listnews_fh a:hover {
  color: #ffffff;
}

/* ===== 响应式断点 ===== */

/* 平板设备 (≤1024px) */
@media screen and (max-width: 1024px) {
  .prcont {
    padding: 0 15px;
  }

  .cptitle {
    margin: 40px auto 20px;
    font-size: clamp(20px, 2.5vw, 26px);
  }

  .cppic {
    max-width: 500px;
    padding: 12px;
  }

  .cppic img {
    max-height: 350px;
  }

  .product-detail {
    margin: 30px auto;
    padding: 0 10px;
  }

  .product-detail .tab-title a {
    padding: 8px 18px;
    font-size: 15px;
    line-height: 30px;
  }

  .zl_frUl ul li {
    flex: 0 0 calc(33.33% - 14px);
    min-width: 160px;
  }

  .zl_frUl ul li a img {
    height: 180px;
  }
}

/* 手机设备 (≤768px) */
@media screen and (max-width: 768px) {
  .prcont {
    padding: 0 10px;
  }

  .cptitle {
    margin: 30px auto 15px;
    font-size: clamp(18px, 3vw, 22px);
    min-height: 45px;
    padding-bottom: 10px;
  }

  .cppic {
    max-width: 100%;
    padding: 10px;
    border-radius: 8px;
  }

  .cppic img {
    max-height: 280px;
  }

  .cppic:hover img {
    transform: scale(1.03);
  }

  .cppic::after {
    font-size: 16px;
    padding: 6px 10px;
    bottom: 12px;
    right: 12px;
  }

  .product-detail {
    margin: 20px auto;
    padding: 0 5px;
  }

  .product-detail .tab-title a {
    flex: 1 0 auto;
    min-width: 70px;
    padding: 6px 12px;
    font-size: 13px;
    line-height: 28px;
    white-space: normal;
  }

  .product-detail .tab-content {
    padding: 20px 15px;
    font-size: 14px;
    text-indent: 1.5em;
    border-radius: 0 0 12px 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06), 0 2px 6px rgba(0, 0, 0, 0.03), 0 12px 40px rgba(0, 0, 0, 0.04);
  }

  .product-detail .tab-content::after {
    bottom: -4px;
    left: 10%;
    width: 80%;
    height: 8px;
    filter: blur(4px);
  }

  .zl_frbox {
    min-height: 300px;
    padding: 10px 0;
    gap: 5px;
  }

  .zl_frUl ul {
    gap: 12px;
  }

  .zl_frUl ul li {
    flex: 0 0 calc(50% - 6px);
    min-width: 120px;
  }

  .zl_frUl ul li a img {
    height: 150px;
  }

  .zl_frBtnL,
  .zl_frBtnR {
    height: 40px;
    width: 22px;
  }

  .zl_zc {
    min-height: 50px;
    padding: 10px 12px;
  }

  .zl_zc_p h3 {
    font-size: 12px;
  }

  /* 上下篇导航 - 手机竖排 */
  .listnews {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 12px 15px;
  }

  .listnews-left {
    width: 100%;
  }

  .listnews_prev {
    font-size: 13px;
    padding: 4px 0;
  }

  .listnews_prev a {
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
  }

  .listnews_fh {
    width: 100%;
    min-width: unset;
    height: 38px;
    line-height: 38px;
    font-size: 13px;
    margin: 0 auto;
  }
}

/* 小手机 (≤480px) */
@media screen and (max-width: 480px) {
  .prcont {
    padding: 0 8px;
  }

  .cptitle {
    font-size: 18px;
    min-height: 40px;
    margin: 20px auto 10px;
  }

  .cppic {
    padding: 8px;
  }

  .cppic img {
    max-height: 220px;
  }

  .cppic::after {
    font-size: 14px;
    padding: 5px 8px;
    bottom: 10px;
    right: 10px;
  }

  .product-detail .tab-title a {
    font-size: 12px;
    padding: 4px 8px;
    min-width: 55px;
    line-height: 24px;
  }

  .product-detail .tab-content {
    padding: 15px 12px;
    font-size: 13px;
    text-indent: 1.2em;
    border-radius: 0 0 10px 10px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05), 0 2px 4px rgba(0, 0, 0, 0.03);
  }

  .zl_frUl ul {
    gap: 8px;
  }

  .zl_frUl ul li {
    flex: 0 0 calc(50% - 4px);
    min-width: 100px;
  }

  .zl_frUl ul li a img {
    height: 120px;
  }

  .zl_frBtnL,
  .zl_frBtnR {
    height: 30px;
    width: 18px;
  }

  .zl_zc {
    min-height: 40px;
    padding: 6px 8px;
  }

  .zl_zc_p h3 {
    font-size: 11px;
    line-height: 1.3;
  }

  .listnews {
    padding: 10px 12px;
  }

  .listnews_prev {
    font-size: 12px;
    line-height: 1.6;
  }

  .listnews_prev:first-child::before,
  .listnews_prev:last-child::before {
    font-size: 12px;
  }

  .listnews_fh {
    height: 36px;
    line-height: 36px;
    font-size: 12px;
  }
}