/* ==================== 泉溪环保 全局美化 ==================== */
:root {
  --primary: #1a6e3e;
  --primary-dark: #145a32;
  --accent: #e67e22;
  --accent-dark: #d35400;
  --green: #2ecc71;
  --green-dark: #27ae60;
  --bg-light: #f5f7fa;
  --bg-white: #ffffff;
  --text: #2c3e50;
  --text-light: #7f8c8d;
  --border: #e0e5ec;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --radius: 10px;
  --radius-sm: 6px;
  --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
}

/* ==================== 全局重置与基础 ==================== */
body {
  background: #f0f2f5;
  color: var(--text);
  font-size: 15px;
  line-height: 1.7;
}

.container {
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 30px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 40px;
  position: relative;
}
.section-title h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px;
  letter-spacing: 1px;
}
.section-title i {
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  margin: 0 auto 12px;
  border-radius: 2px;
}
.section-title p {
  color: var(--text-light);
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.section-title small {
  font-size: 13px;
  color: #aaa;
  letter-spacing: 2px;
}

/* ==================== 顶部导航美化 ==================== */
.header {
  background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  position: sticky;
  top: 0;
  z-index: 999;
}

.topbar {
  background: #1a1a2e;
  color: #ccc;
  font-size: 13px;
  padding: 6px 0;
}
.topbar a {
  color: #ccc;
  transition: var(--transition);
}
.topbar a:hover {
  color: #fff;
}

.nav {
  background: var(--primary);
  box-shadow: 0 2px 8px rgba(26,111,181,0.2);
}
.nav .container ul {
  display: flex;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav .container ul li a {
  display: block;
  padding: 14px 22px;
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
  position: relative;
}
.nav .container ul li a:hover,
.nav .container ul li.active a {
  background: rgba(255,255,255,0.15);
}
.nav .container ul li.active a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 22px;
  right: 22px;
  height: 3px;
  background: #fff;
  border-radius: 3px 3px 0 0;
}

/* ==================== Banner ==================== */
.banner {
  border-radius: 0;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-bottom: 0;
}
.banner .swiper-slide img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ==================== 产品卡片（仅装饰增强，不覆盖原始 float 布局） ==================== */
.list-1 {
  list-style: none;
}
.list-1 li {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border);
  position: relative;
  box-sizing: border-box;
}
.list-1 li:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.list-1 li .img-center {
  overflow: hidden;
}
.list-1 li .img-center img {
  width: 100%;
  transition: transform 0.4s ease;
}
.list-1 li:hover .img-center img {
  transform: scale(1.06);
}
.list-1 li .text {
  padding: 16px 18px;
}
.list-1 li .text h3,
.list-1 li .text h4 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
}
.list-1 li .text h3 a,
.list-1 li .text h4 a,
.list-1 li .text a {
  color: var(--text);
  text-decoration: none;
  transition: var(--transition);
}
.list-1 li .text h3 a:hover,
.list-1 li .text h4 a:hover {
  color: var(--primary);
}
.list-1 li .text p {
  color: var(--text-light);
  font-size: 13px;
  line-height: 1.6;
  margin: 0;
}

/* ==================== 新闻卡片列表 ==================== */
.news-card-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  overflow: visible;
}

.news-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
  width: auto;
  height: auto;
}
.news-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.news-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}
.news-card-img {
  position: relative;
  overflow: hidden;
  height: 200px;
}
.news-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.news-card:hover .news-card-img img {
  transform: scale(1.06);
}
.video-tag {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(230,126,34,0.9);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.news-card-body {
  padding: 18px 20px;
}
.news-card-cat {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
  font-weight: 500;
}
.news-card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 10px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-desc {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin: 0 0 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-meta {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: #aaa;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

/* 新闻筛选按钮 */
.news-filter {
  margin-bottom: 30px !important;
}
.filter-btn {
  display: inline-block;
  padding: 8px 22px;
  border-radius: 25px;
  background: #fff;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  border: 1px solid var(--border);
  transition: var(--transition);
  font-weight: 500;
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(26,110,62,0.3);
}

/* 新闻列表项（首页用） */
.list-3 li {
  padding: 12px 0;
  border-bottom: 1px dashed var(--border);
  transition: var(--transition);
}
.list-3 li:hover {
  padding-left: 8px;
}
.list-3 li a {
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.list-3 li a span {
  color: #aaa;
  font-size: 12px;
  white-space: nowrap;
  min-width: 85px;
}

/* ==================== 详情页 ==================== */
.detail-container {
  max-width: 900px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
}

.detail-header {
  text-align: center;
  border-bottom: 2px solid var(--border);
  padding-bottom: 20px;
  margin-bottom: 28px;
}
.detail-header h1 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 14px;
  line-height: 1.4;
}
.detail-header .detail-meta {
  color: var(--text-light);
  font-size: 14px;
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}
.detail-header .detail-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.detail-image {
  margin-bottom: 28px;
  border-radius: var(--radius);
  overflow: hidden;
}
.detail-image img {
  width: 100%;
  max-height: 500px;
  object-fit: contain;
  background: #f8f9fa;
}

.detail-body {
  font-size: 16px;
  line-height: 2;
  color: #444;
}
.detail-body img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  margin: 12px 0;
}
.detail-body p {
  margin: 0 0 16px;
}

/* 视频播放器 */
.video-wrapper {
  margin: 24px 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: #000;
}
.video-wrapper video {
  width: 100%;
  max-width: 800px;
  display: block;
  margin: 0 auto;
}
.video-wrapper .video-caption {
  background: #f8f9fa;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--text-light);
  border-top: 1px solid var(--border);
}

/* ==================== 产品详情页 ==================== */
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 768px) {
  .product-detail-grid {
    grid-template-columns: 1fr;
  }
}
.product-detail-img {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: #f8f9fa;
}
.product-detail-img img {
  width: 100%;
  height: auto;
  object-fit: contain;
  max-height: 450px;
}
.product-detail-info h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 16px;
}
.product-detail-info .product-meta-row {
  display: flex;
  gap: 20px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.product-detail-info .product-meta-item {
  background: var(--bg-light);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
}
.product-detail-info .product-meta-item strong {
  color: var(--primary);
}
.product-detail-desc {
  font-size: 15px;
  line-height: 1.9;
  color: #555;
  border-top: 1px solid var(--border);
  padding-top: 20px;
  margin-top: 8px;
}

/* ==================== 案例详情 ==================== */
.case-meta-bar {
  display: flex;
  justify-content: center;
  gap: 30px;
  background: var(--bg-light);
  padding: 16px 24px;
  border-radius: var(--radius);
  margin: 20px 0;
  flex-wrap: wrap;
}
.case-meta-bar .case-meta-item {
  font-size: 14px;
  color: var(--text);
}
.case-meta-bar .case-meta-item strong {
  color: var(--primary);
  margin-right: 4px;
}

/* ==================== 关于我们 - 优势卡片 ==================== */
.in-choose dl {
  background-color: #fff !important;
  border-radius: var(--radius);
  padding: 24px 20px 20px 80px !important;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--primary);
  transition: var(--transition);
  background-repeat: no-repeat !important;
  background-position: 16px center !important;
  background-size: 40px !important;
}
.in-choose dl:hover {
  box-shadow: var(--shadow);
  border-left-color: var(--accent);
}
.in-choose dt {
  font-size: 16px;
  font-weight: 700;
  color: var(--text) !important;
  margin-bottom: 6px;
}
.in-choose dd {
  color: var(--text-light) !important;
  font-size: 13px;
  line-height: 1.7;
}

/* 关于我们区域 */
.in-about {
  background: #fff;
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow-sm);
}
.in-about dt {
  float: left;
  width: 40%;
  border-radius: var(--radius);
  overflow: hidden;
}
.in-about dt img {
  width: 100%;
}
.in-about dd {
  float: right;
  width: 56%;
}
.in-about dd p {
  font-size: 15px;
  line-height: 2;
  color: #555;
}

/* ==================== 按钮美化 ==================== */
.btn {
  display: inline-block !important;
  width: auto !important;
  height: auto !important;
  padding: 12px 32px;
  border-radius: 25px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  letter-spacing: 0.5px;
  line-height: 1.5;
  background: none;
  color: inherit;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(26,111,181,0.3);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26,111,181,0.4);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(230,126,34,0.3);
}
.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(230,126,34,0.4);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}
.more {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid var(--primary);
  color: var(--primary) !important;
  font-size: 13px;
  text-decoration: none !important;
  transition: var(--transition);
  font-weight: 500;
  float: right;
}
.more:hover {
  background: var(--primary);
  color: #fff !important;
}

/* ==================== 页脚美化 ==================== */
.footer {
  background: #1a1a2e;
  color: #bbb;
  padding: 40px 0 20px;
}
.footer-logo img {
  filter: brightness(0) invert(1);
  opacity: 0.9;
  max-width: 220px;
}
.footer-logo {
  margin-bottom: 15px;
}
.footer-link a {
  color: #bbb !important;
  padding: 0 12px;
  transition: var(--transition);
  text-decoration: none;
}
.footer-link a:hover {
  color: #fff !important;
}
.footer-info p {
  color: #999;
  margin: 4px 0;
}

/* ==================== 荣誉资质 ==================== */
.list-2 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  padding: 0;
  list-style: none;
}
.list-2 li {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--border);
}
.list-2 li:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.list-2 li .img-center img {
  width: 100%;
  height: 180px;
  object-fit: contain;
  padding: 16px;
}
.list-2 li p {
  padding: 10px 16px;
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  background: var(--bg-light);
}

/* ==================== 响应式 ==================== */
@media (max-width: 992px) {
  .news-card-list {
    grid-template-columns: 1fr;
  }
  .in-about dt,
  .in-about dd {
    float: none;
    width: 100%;
    margin-bottom: 20px;
  }
}
@media (max-width: 576px) {
  .section-title h2 {
    font-size: 24px;
  }
  .detail-container {
    padding: 20px;
  }
}

/* ==================== 空状态 ==================== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: #bbb;
  font-size: 15px;
  width: 100%;
}

/* ==================== 分类标签（产品页） ==================== */
.in-prd-cate {
  margin-bottom: 30px;
  text-align: center;
}
.in-prd-cate .lanmu {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.in-prd-cate .lanmu li a {
  display: inline-block;
  padding: 8px 24px;
  border-radius: 25px;
  background: #fff;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.in-prd-cate .lanmu li a:hover,
.in-prd-cate .lanmu li a.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(26,111,181,0.3);
}

/* ==================== 标语区域 ==================== */
.in-dd {
  background: linear-gradient(135deg, var(--primary) 0%, #0d5a2a 100%);
  color: #fff;
  text-align: center;
  padding: 50px 0;
}
.in-dd h4 {
  font-size: 28px;
  margin: 0 0 12px;
}
.in-dd p {
  font-size: 16px;
  opacity: 0.9;
  margin: 0;
}

/* ==================== 通用链接美化 ==================== */
a {
  transition: var(--transition);
}
.img-center img {
  max-width: 100%;
}

/* ==================== 分享按钮区域 ==================== */
.detail-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 30px;
}

/* ==================== 首页新闻区 ==================== */
.in-news {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.in-news .tit {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.in-news .tit span {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}
.in-news .list-3 {
  padding: 10px 20px 20px;
  list-style: none;
  margin: 0;
}

/* ==================== 分页美化 ==================== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 30px;
}
.pagination a,
.pagination span {
  display: inline-block;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--border);
  font-size: 14px;
  transition: var(--transition);
}
.pagination a:hover,
.pagination span.current {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ==================== 案例行业标签 ==================== */
.case-industry-tag {
  display: inline-block;
  background: rgba(26,111,181,0.1);
  color: var(--primary);
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 12px;
  margin: 4px 0 8px 0;
  font-weight: 500;
}

/* ==================== 视频标识（图片右下角） ==================== */
.video-tag {
  display: none;
}

.video-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.65);
  color: #fff;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ==================== 问题修复 ==================== */

/* 修复1: 荣誉资质 grid 布局 ─ 彻底覆盖 style.css 的 float + 负margin + clearfix */
.list-2 {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr) !important;
  gap: 24px !important;
  margin: 0 !important;
  padding: 0 !important;
  list-style: none !important;
  float: none !important;
  width: 100% !important;
  overflow: visible !important;
}
.list-2::before,
.list-2::after {
  display: none !important;
  content: none !important;
}
.list-2 li {
  float: none !important;
  width: auto !important;
  margin: 0 !important;
  padding: 0 !important;
  display: block !important;
}
.list-2 li a {
  margin: 0 !important;
  padding: 0 !important;
}
.list-2 li .img-center {
  height: 200px;
  line-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.list-2 li .img-center img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
}
.list-2 li p {
  padding: 12px 16px;
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: #2c3e50;
  background: #f5f7fa;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
@media (max-width: 992px) {
  .list-2 {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}
@media (max-width: 576px) {
  .list-2 {
    grid-template-columns: 1fr !important;
  }
}

/* 修复2: 案例卡片底部绿色背景改为浅色 */
.list-1 li .text {
  background-color: #f8f9fa !important;
  color: #2c3e50 !important;
  padding: 14px 16px !important;
}
.list-1 li .text h3,
.list-1 li .text h4,
.list-1 li .text a {
  color: #2c3e50 !important;
}
.list-1 li .text h3 a:hover,
.list-1 li .text h4 a:hover {
  color: #1a6e3e !important;
}

/* 修复3: 案例卡片 h4 标题清晰化 */
.list-1 li .text h4 {
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 6px;
  color: #2c3e50;
}

/* 修复4: 案例行业标签透明度统一 */
.case-industry-tag {
  display: inline-block;
  background: rgba(26,110,62,0.08) !important;
  color: #1a6e3e !important;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 12px;
  margin: 4px 0 8px 0;
  font-weight: 500;
}

/* 修复5: section-title 全局统一 */
.section-title {
  font-size: 28px;
  font-weight: 700;
  color: #2c3e50;
}
.section-title h2 {
  font-size: 28px;
  font-weight: 700;
  color: #2c3e50;
  margin: 0 0 8px;
  letter-spacing: 1px;
}
.section-title p {
  font-size: 14px;
  color: #999;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin: 6px auto 0;
  max-width: 80%;
}

/* 修复6: "选择我们环保设备"绿色banner区域标题 */
.in-choose .section-title,
div.section > .container > .section-title:first-child {
  font-size: 28px;
  font-weight: 700;
  color: #1a6e3e;
}

/* 修复7: 产品卡片标题字体一致性 */
.list-1 li .text h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 6px;
  color: #2c3e50;
}
.list-1 li .text h3 a {
  color: #2c3e50;
  text-decoration: none;
}
.list-1 li .text h3 a:hover {
  color: #1a6e3e;
}

/* 修复8: 首页产品展示区不使用 .list-1 li .text 浅色背景 (bg1区域保持绿色) */
.bg1 .list-1 li .text {
  background-color: #258C44 !important;
  color: #fff !important;
}
.bg1 .list-1 li .text a,
.bg1 .list-1 li .text h3,
.bg1 .list-1 li .text h3 a,
.bg1 .list-1 li .text h4,
.bg1 .list-1 li .text h4 a {
  color: #fff !important;
}

/* 修复9: 新闻列表标题字体 */
.news-card-title {
  font-size: 17px;
  font-weight: 600;
  color: #2c3e50;
  line-height: 1.5;
}

/* ==================== 横幅区域 ==================== */
.section-banner { margin-bottom: 30px; }
.section-banner img { width: 100%; display: block; }