/* ===== 基础重置与变量 ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #5bb5e8;
  --primary-dark: #3a9ad4;
  --primary-light: #8fcef2;
  --primary-pale: #e8f5fc;
  --text: #2d4a5e;
  --text-light: #5a7a8f;
  --text-muted: #8aa5b8;
  --text-sub: #7ba8c4;
  --bg: #ffffff;
  --bg-light: #f0f8fd;
  --border: #d4e8f5;
  --footer-bg: #1e252b;
  --container: 1200px;
  --font: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  --transition: 0.3s ease;
}

html {
  font-size: 17px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

.container {
  width: var(--container);
  max-width: 100%;
  margin: 0 auto;
  padding: 0;
}

/* ===== 顶部灰色条 ===== */
.top-bar {
  background: #f8f9fa;
  font-size: 14px;
  color: var(--text-light);
  height: 36px;
  line-height: 36px;
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.top-bar-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.top-bar-links a {
  color: #666;
  transition: color var(--transition);
}

.top-bar-links a:hover {
  color: var(--primary);
}

/* ===== 顶栏：企业名 + 咨询电话 ===== */
.header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 86px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 26px;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.3;
  flex-shrink: 1;
}

.logo-img {
  width: 200px;
  height: 50px;
  object-fit: contain;
  flex-shrink: 0;
}

.header-phone {
  display: flex;
  align-items: baseline;
  gap: 4px;
  flex-shrink: 0;
  white-space: nowrap;
  transition: opacity var(--transition);
}

.header-phone:hover {
  opacity: 0.85;
}

.header-phone-label {
  font-size: 14px;
  color: #666;
  font-weight: 400;
}

.header-phone-number {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: 0.5px;
}

/* ===== 蓝色通栏导航 ===== */
.nav-bar {
  background: linear-gradient(90deg, var(--primary-light) 0%, var(--primary) 50%, var(--primary-dark) 100%);
}

.nav-bar .container {
  position: relative;
  height: 50px;
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 14px;
  height: 50px;
  margin-left: 10px;
}

.nav-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 26px;
  height: 50px;
  font-size: 16px;
  color: rgba(255, 255, 255, 0.88);
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}

.nav-links a:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.nav-links a.active {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  font-weight: 700;
}

.nav-bar-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 15px;
  padding: 12px 0;
  cursor: pointer;
  width: 100%;
  text-align: left;
}

/* ===== Banner ===== */
.banner {
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  height: 400px;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
}

.banner strong {
  color: var(--primary-dark);
  font-size: 40px;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  padding: 0 24px;
  text-shadow: 0 1px 12px rgba(255, 255, 255, 0.85);
}

.banner img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.page-banner {
  background: linear-gradient(180deg, var(--primary-pale) 0%, var(--bg) 100%);
  padding: 28px 0;
}

.page-banner-inner {
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-banner-left {
  flex: none;
  width: 100%;
  text-align: center;
}

.banner-back {
  display: inline-block;
  font-size: 13px;
  color: var(--primary);
  margin-bottom: 10px;
}

.banner-back:hover {
  opacity: 0.85;
}

.page-banner-left h1 {
  font-size: 30px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 10px;
}

.page-banner-left p {
  font-size: 16px;
  color: var(--text-sub);
}

.category-strip {
  background: #fff;
  padding: 20px 0 12px;
}

.category-strip .category-pills {
  justify-content: center;
}

.section-products-page {
  background: #fff;
}

.products-page .section {
  padding: 20px 0;
}

.news-page .section {
  padding: 20px 0;
}

.questions-list-page .section {
  padding: 30px 0;
}

.news-page .category-strip .category-pills {
  justify-content: flex-start;
}

.page-banner-right {
  flex-shrink: 0;
}

.category-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.cat-pill {
  padding: 8px 22px;
  font-size: 14px;
  color: #666;
  background: #fff;
  border: 1px solid #e8ecf0;
  border-radius: 20px;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font);
}

.cat-pill:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.cat-pill.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(91, 181, 232, 0.28);
}

/* ===== 通用区块 ===== */
.section {
  padding: 50px 0;
}

.section-news {
  background: var(--bg);
}

.section-products {
  background: var(--bg-light);
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-header h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.section-header p {
  font-size: 16px;
  color: var(--text-sub);
}

/* ===== 最新动态 ===== */
.news-featured-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.news-feature-card {
  display: block;
  background: #fff;
  border: 1px solid #eaecef;
  border-radius: 8px;
  padding: 28px 32px;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.news-feature-card:hover {
  border-color: #c5d9f0;
  box-shadow: 0 4px 20px rgba(91, 181, 232, 0.12);
}

.tag-cat {
  display: inline-block;
  font-size: 13px;
  color: var(--primary);
  margin-bottom: 12px;
}

.news-feature-card .tag-cat {
  background: rgba(91, 181, 232, 0.15);
  padding: 5px 14px;
  border-radius: 2px;
  margin-bottom: 14px;
}

.news-feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 12px;
  transition: color var(--transition);
}

.news-feature-card:hover h3 {
  color: var(--primary);
}

.news-feature-card p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-feature-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid #f0f0f0;
}

.news-feature-foot time {
  font-size: 14px;
  color: var(--text-muted);
}

.news-link {
  font-size: 14px;
  color: var(--primary);
}

.news-panel {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 48px;
  background: #fff;
  border: 1px solid #eaecef;
  border-radius: 8px;
  padding: 8px 32px;
}

.news-dot-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid #f0f0f0;
}

.news-panel-col .news-dot-item:last-child {
  border-bottom: none;
}

.news-dot-item .dot-title {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-size: 15px;
  color: var(--text);
  transition: color var(--transition);
}

.news-dot-item .dot-title::before {
  content: "";
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

.news-dot-item:hover .dot-title {
  color: var(--primary);
}

.news-dot-item time {
  flex-shrink: 0;
  font-size: 14px;
  color: var(--text-muted);
}

.news-more {
  text-align: center;
  margin-top: 32px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-block;
  padding: 10px 28px;
  background: var(--primary);
  color: #fff;
  border-radius: 4px;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: background var(--transition);
}

.btn:hover {
  background: var(--primary-dark);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
}

/* ===== 产品卡片 ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.product-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.product-card:hover {
  box-shadow: 0 6px 20px rgba(91, 181, 232, 0.18);
  transform: translateY(-4px);
}

.product-card .img-wrap {
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.product-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.product-card:hover img {
  transform: scale(1.05);
}

.product-info {
  padding: 16px;
  text-align: center;
}

.product-info h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.product-info p {
  font-size: 15px;
  color: var(--text-muted);
}

.product-card-page {
  display: flex;
  flex-direction: column;
}

.product-card-page .product-info {
  text-align: left;
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card-page .product-title-link {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

.product-card-page .product-title-link:hover {
  color: var(--primary);
  text-decoration: underline;
}

.product-card-page .product-desc {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin: 10px 0 16px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card-page .btn-sm {
  align-self: flex-start;
}

/* ===== 分类（旧 tab 已弃用，保留兼容） ===== */
.category-bar {
  display: none;
}

.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  justify-content: flex-start;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--footer-bg);
  color: rgba(255, 255, 255, 0.85);
  padding: 48px 0 0;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

@media (min-width: 1024px) {
  .footer-summary {
    width: 400px;
  }
}

.footer h3 {
  font-size: 18px;
  color: #fff;
  margin-bottom: 16px;
  font-weight: 600;
}

.footer p,
.footer li {
  font-size: 14px;
  line-height: 2;
  color: rgba(255, 255, 255, 0.75);
}

.footer-simple {
  padding: 0;
}

.footer-contact li {
  display: flex;
  gap: 8px;
}

.footer-contact .label {
  flex-shrink: 0;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom {
  text-align: center;
  padding: 20px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a:hover {
  color: #fff;
}

/* ===== 内页 Hero ===== */
.page-hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  padding: 48px 0;
  text-align: center;
  color: #fff;
}

.page-hero h1 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 8px;
}

.page-hero p {
  font-size: 16px;
  opacity: 0.85;
}

.section-grey {
  background: var(--bg-light);
}

/* ===== 关于我们 ===== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
  margin-bottom: 36px;
}

.about-intro-stack {
  grid-template-columns: 1fr;
  gap: 32px;
  max-width: 900px;
  margin: 0 auto 40px;
}

.about-text h2 {
  font-size: 26px;
  color: var(--primary-dark);
  margin-bottom: 20px;
}

.about-text p {
  font-size: 16px;
  color: var(--text-light);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  object-fit: cover;
}

.about-intro-stack .about-figure img {
  max-height: 400px;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-item {
  text-align: center;
  padding: 28px 16px;
  background: var(--bg-light);
  border-radius: 8px;
}

.stat-item strong {
  display: block;
  font-size: 32px;
  color: var(--primary);
  margin-bottom: 6px;
}

.stat-item span {
  font-size: 14px;
  color: var(--text-light);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.value-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px 28px;
  text-align: center;
}

.value-card h3 {
  font-size: 18px;
  color: var(--primary-dark);
  margin-bottom: 14px;
}

.value-card p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
}

.timeline {
  max-width: 700px;
  margin: 0 auto;
}

.timeline-item {
  display: flex;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

.timeline-item .year {
  flex-shrink: 0;
  width: 60px;
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}

.timeline-item p {
  font-size: 16px;
  color: var(--text-light);
}

/* ===== 新闻列表页 ===== */
.news-page-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}

.news-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

.news-list-card {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
  min-width: 0;
  max-width: 100%;
  width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

.news-card-thumb {
  flex-shrink: 0;
  width: 220px;
  height: 140px;
  border-radius: 6px;
  overflow: hidden;
  background: #f0f0f0;
}

.news-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-card-body {
  flex: 1;
  min-width: 0;
}

.news-list-card:first-child {
  padding-top: 0;
}

.news-list-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.4;
  transition: color var(--transition);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.news-list-card:hover h3 {
  color: var(--primary);
}

.news-list-card .news-excerpt {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-list-card .news-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 14px;
  color: var(--text-muted);
}

.news-meta-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.news-list-card .news-meta-row .tag-cat {
  margin-bottom: 0;
}

.news-more-link {
  flex-shrink: 0;
  font-size: 13px;
  color: var(--primary);
  padding: 6px 16px;
  border: 1px solid var(--primary);
  border-radius: 4px;
  background: #fff;
  transition: all var(--transition);
}

.news-list-card:hover .news-more-link {
  background: var(--primary);
  color: #fff;
}

/* ===== 问题地图 ===== */
.questions-hero {
  background: linear-gradient(180deg, var(--primary-pale) 0%, var(--bg) 100%);
  padding: 40px 0 36px;
}

.questions-hero h1 {
  font-size: 30px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 0;
  position: relative;
  display: inline-block;
  padding-bottom: 10px;
}

.questions-hero h1::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

.questions-hero p {
  font-size: 15px;
  color: var(--text-sub);
  margin-top: 16px;
}

.section-questions {
  padding: 0;
}

.questions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  padding: 40px 0 50px;
}

.question-category-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.question-category-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: var(--primary-pale);
  border-bottom: 1px solid var(--border);
}

.question-category-head h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
}

.question-category-head a {
  font-size: 13px;
  color: var(--primary);
  transition: opacity var(--transition);
}

.question-category-head a:hover {
  opacity: 0.8;
}

.question-category-list {
  list-style: none;
}

.question-category-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid #f0f2f5;
  transition: background var(--transition);
}

.question-category-item:last-child {
  border-bottom: none;
}

.question-category-item:hover {
  background: #f8fafc;
}

.question-num {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  flex-shrink: 0;
  width: 24px;
}

.question-category-item a {
  flex: 1;
  font-size: 15px;
  color: var(--text);
  line-height: 1.5;
  transition: color var(--transition);
}

.question-category-item:hover a {
  color: var(--primary);
}

.question-arrow {
  color: #ccc;
  font-size: 14px;
  flex-shrink: 0;
}

.question-list-card {
  display: block;
  padding: 24px 28px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 20px;
  background: #fff;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.question-list-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  border-color: #d8e2ef;
}

.question-list-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 12px;
  transition: color var(--transition);
}

.question-list-card:hover h3 {
  color: var(--primary);
}

.question-excerpt {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
}

.question-list-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  gap: 16px;
}

.question-tag {
  font-size: 12px;
  padding: 4px 10px;
  background: #e8f0fa;
  color: var(--primary);
  border-radius: 3px;
}

.question-more-link {
  flex-shrink: 0;
  font-size: 13px;
  color: var(--primary);
  padding: 6px 16px;
  border: 1px solid var(--primary);
  border-radius: 4px;
  background: #fff;
  transition: all var(--transition);
}

.question-list-card:hover .question-more-link {
  background: var(--primary);
  color: #fff;
}

/* ===== 侧边栏 ===== */
.sidebar {
  position: sticky;
  top: 20px;
}

.sidebar-block {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
}

.sidebar-block h4 {
  display: block;
  font-size: 16px;
  color: var(--text);
  font-weight: 600;
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: none;
}

.sidebar-block h4::after {
  content: "";
  display: block;
  width: 100%;
  height: 1px;
  margin-top: 10px;
  margin-bottom: 12px;
  background: linear-gradient(to right, var(--primary) 50%, #e0e0e0 50%);
}

.sidebar-list.sidebar-dot-list a {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.sidebar-list.sidebar-dot-list a::before {
  content: "";
  flex-shrink: 0;
  width: 5px;
  height: 5px;
  margin-top: 8px;
  background: var(--primary);
  border-radius: 50%;
}

.sidebar-list li {
  padding: 8px 0;
  border-bottom: 1px dashed #eee;
}

.sidebar-list li:last-child {
  border-bottom: none;
}

.sidebar-list a {
  font-size: 14px;
  color: var(--text-light);
  display: block;
  line-height: 1.5;
  transition: color var(--transition);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-list a:hover {
  color: var(--primary);
}

.sidebar-list .hot-num {
  display: inline-block;
  width: 18px;
  height: 18px;
  line-height: 18px;
  text-align: center;
  font-size: 11px;
  background: #f0f0f0;
  color: var(--text-muted);
  border-radius: 3px;
  margin-right: 6px;
}

.sidebar-list li:nth-child(-n+3) .hot-num {
  background: var(--primary);
  color: #fff;
}

.sidebar-contact p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 6px;
}

.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sidebar-tags a {
  padding: 4px 12px;
  font-size: 13px;
  color: var(--text-light);
  background: #f5f7fa;
  border-radius: 3px;
  transition: all var(--transition);
}

.sidebar-tags a:hover {
  background: var(--primary);
  color: #fff;
}

/* ===== 分页 ===== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}

.pagination a,
.pagination .page-current {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  font-size: 14px;
  border-radius: 4px;
  color: var(--text-light);
  border: 1px solid var(--border);
}

.pagination .page-current {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.pagination a:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.pagination .page-next {
  border: none;
  color: var(--primary);
}

/* ===== 详情页布局 ===== */
.detail-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}

.breadcrumb-wrap {
  margin-top: 25px;
  background: #fff;
}

.breadcrumb {
  padding: 0;
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: none;
  margin-bottom: 0;
}

.detail-section {
  padding-top: 32px;
}

.breadcrumb a {
  color: var(--text-light);
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb span {
  margin: 0 8px;
  color: #ccc;
}

.detail-main {
  background: #fff;
}

.detail-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 16px;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 14px;
  color: var(--text-muted);
  padding-bottom: 24px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.article-product-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  margin-bottom: 28px;
  background: #fff;
  border: 1px solid #e8ecf0;
  border-radius: 8px;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.article-product-card:hover {
  border-color: #c5d9f0;
  box-shadow: 0 2px 12px rgba(91, 181, 232, 0.12);
}

.article-product-thumb {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 6px;
  overflow: hidden;
  background: #f5f7fa;
}

.article-product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-product-info {
  flex: 1;
  min-width: 0;
}

.article-product-info h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.article-product-info p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.6;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article-product-btn {
  flex-shrink: 0;
  padding: 8px 20px;
  font-size: 14px;
  color: var(--primary);
  border: 1px solid var(--primary);
  border-radius: 4px;
  background: #fff;
  transition: all var(--transition);
}

.article-product-card:hover .article-product-btn {
  background: var(--primary);
  color: #fff;
}

.detail-cover {
  margin-bottom: 28px;
  border-radius: 8px;
  overflow: hidden;
}

.detail-content {
  font-size: 16px;
  color: var(--text-light);
  line-height: 2;
}

.detail-content p {
  margin-bottom: 16px;
}

.detail-content h3 {
  font-size: 18px;
  color: var(--text);
  margin: 28px 0 12px;
  font-weight: 600;
}

.detail-nav {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-top: 40px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.detail-nav-item {
  display: flex;
  flex-direction: row;
  align-items: baseline;
  gap: 8px;
  line-height: 1.6;
}

.detail-nav-next {
  text-align: right;
  margin-left: auto;
}

.detail-nav-item:hover .nav-title {
  color: var(--primary);
}

.detail-nav .nav-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 0;
  flex-shrink: 0;
}

.detail-nav .nav-title {
  font-size: 15px;
  color: var(--text);
  transition: color var(--transition);
}

.detail-recommend {
  margin-top: 40px;
}

.block-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.block-head h3 {
  font-size: 20px;
  font-weight: 600;
  padding-left: 12px;
  border-left: 4px solid var(--primary);
}

.more-link {
  font-size: 13px;
  color: var(--primary);
  flex-shrink: 0;
  padding: 6px 16px;
  border: 1px solid var(--primary);
  border-radius: 4px;
  background: #fff;
  transition: all var(--transition);
}

.more-link:hover {
  background: var(--primary);
  color: #fff;
}

.hot-articles-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 40px;
}

.hot-articles-list a {
  font-size: 15px;
  color: var(--text);
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color var(--transition);
}

.hot-articles-list a:hover {
  color: var(--primary);
}

.hot-articles-list a::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  background: var(--primary);
  border-radius: 50%;
  margin-right: 8px;
  vertical-align: middle;
}

/* ===== 联系页 ===== */
.section-contact {
  background: #fff;
}

.contact-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 56px;
  align-items: start;
  max-width: 920px;
  margin: 0 auto;
}

.contact-panel-main h2 {
  font-size: 22px;
  color: var(--primary-dark);
  margin-bottom: 28px;
}

.contact-detail-grid {
  display: flex;
  flex-direction: column;
}

.contact-detail-item {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid #f0f2f5;
}

.contact-detail-item:last-child {
  border-bottom: none;
}

.contact-detail-item .contact-detail-label {
  flex: 0 0 88px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 0;
}

.contact-detail-item p {
  font-size: 16px;
  color: var(--text);
  line-height: 1.6;
}

.contact-detail-item a {
  color: var(--primary);
}

.contact-detail-item a:hover {
  text-decoration: underline;
}

.contact-panel-qr {
  padding-left: 56px;
  border-left: 1px solid #e8ecf0;
}

.contact-qr-card {
  text-align: center;
  padding: 8px 4px;
}

.contact-qr-card img {
  display: block;
  margin: 0 auto 16px;
  border-radius: 6px;
  border: 1px solid #e8ecf0;
}

.contact-qr-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.contact-qr-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info h2,
.contact-form-wrap h2 {
  font-size: 22px;
  color: var(--primary-dark);
  margin-bottom: 24px;
}

.contact-list li {
  margin-bottom: 24px;
}

.contact-list strong {
  display: block;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 400;
}

.contact-form-wrap {
  background: var(--bg-light);
  border-radius: 8px;
  padding: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 15px;
  font-family: var(--font);
  outline: none;
  background: #fff;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
}

.form-group textarea {
  resize: vertical;
}

.page-cta {
  text-align: center;
  margin-top: 48px;
}

.page-cta p {
  font-size: 16px;
  color: var(--text-light);
  margin-bottom: 16px;
}

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

  .product-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .news-page-layout,
  .detail-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
  }

  .hot-articles-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .logo {
    font-size: 22px;
  }

  .logo-img {
    width: 160px;
    height: 40px;
  }

  .header-phone-number {
    font-size: 18px;
  }

  .nav-bar-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    gap: 0;
    padding-bottom: 8px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    width: 100%;
    padding: 0 16px;
    height: 44px;
    justify-content: flex-start;
  }

  .article-product-card {
    flex-wrap: wrap;
  }

  .article-product-btn {
    width: 100%;
    text-align: center;
  }

  .page-banner-inner {
    flex-direction: column;
    align-items: center;
  }

  .category-strip .category-pills {
    justify-content: center;
  }

  .news-page .category-strip .category-pills {
    justify-content: flex-start;
  }

  .news-list-card {
    flex-direction: column;
  }

  .news-card-thumb {
    width: 100%;
    height: 180px;
  }

  .detail-nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .detail-nav-next {
    margin-left: 0;
  }

  .contact-panel {
    gap: 32px;
  }

  .contact-panel-qr {
    padding-left: 0;
    border-left: none;
    padding-top: 24px;
    border-top: 1px solid #e8ecf0;
  }

  .news-featured-row,
  .news-panel,
  .about-intro,
  .about-stats,
  .values-grid,
  .questions-grid,
  .contact-panel,
  .contact-layout,
  .product-grid,
  .product-grid-3 {
    grid-template-columns: 1fr;
  }

  .news-panel {
    padding: 8px 20px;
    gap: 0;
  }

  .section-header h2 {
    font-size: 28px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .logo {
    font-size: 16px;
    gap: 8px;
  }

  .logo-img {
    width: 140px;
    height: 35px;
  }

  .header-phone {
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
  }

  .header-phone-label {
    font-size: 12px;
  }

  .header-phone-number {
    font-size: 16px;
  }

  .contact-detail-item {
    flex-direction: column;
    gap: 6px;
  }

  .contact-detail-item .contact-detail-label {
    flex: none;
  }

  .news-dot-item time {
    display: none;
  }
}

/* ===== 首页：关于我们 ===== */
.home-about {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 55%, var(--primary-light) 100%);
  padding: 0;
}

.home-about-inner {
  display: grid;
  grid-template-columns: minmax(320px, 480px) 1fr;
  min-height: 420px;
}

.home-about-media {
  position: relative;
  overflow: hidden;
}

.home-about-media img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
}

.home-about-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 48px 56px;
  color: #fff;
}

.home-about-en {
  font-size: 15px;
  letter-spacing: 2px;
  opacity: 0.85;
  margin-bottom: 6px;
}

.home-about-cn {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 20px;
}

.home-about-name {
  font-size: 22px;
  font-weight: 700;
  color: #ffe082;
  line-height: 1.5;
  margin-bottom: 10px;
}

.home-about-tag {
  font-size: 12px;
  letter-spacing: 1.5px;
  opacity: 0.75;
  margin-bottom: 20px;
}

.home-about-desc {
  font-size: 15px;
  line-height: 1.9;
  opacity: 0.92;
  margin-bottom: 28px;
  max-width: 560px;
}

.home-about-btn {
  display: inline-block;
  align-self: flex-start;
  padding: 10px 28px;
  background: #fff;
  color: var(--primary-dark);
  border-radius: 24px;
  font-size: 14px;
  font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition);
}

.home-about-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* ===== 首页：最新动态（新排版） ===== */
.section-news-v2 {
  background: var(--bg-light);
  padding: 56px 0;
}

.section-head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
  gap: 20px;
}

.section-head-row h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
}

.section-head-row p {
  font-size: 15px;
  color: var(--text-sub);
  margin-top: 6px;
}

.section-head-link {
  flex-shrink: 0;
  font-size: 14px;
  color: var(--primary-dark);
  padding: 8px 20px;
  border: 1px solid var(--primary);
  border-radius: 20px;
  transition: all var(--transition);
}

.section-head-link:hover {
  background: var(--primary);
  color: #fff;
}

.news-magazine {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.news-hero-card {
  position: relative;
  display: block;
  border-radius: 12px;
  overflow: hidden;
  min-height: 360px;
  background: var(--primary-dark);
}

.news-hero-card img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
  opacity: 0.85;
  transition: transform 0.5s ease;
}

.news-hero-card:hover img {
  transform: scale(1.04);
}

.news-hero-body {
  position: absolute;
  inset: auto 0 0 0;
  padding: 28px;
  background: linear-gradient(transparent, rgba(30, 37, 43, 0.88));
  color: #fff;
}

.news-hero-body .tag-cat {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  padding: 4px 12px;
  border-radius: 3px;
  margin-bottom: 10px;
}

.news-hero-body h3 {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 8px;
}

.news-hero-body time {
  font-size: 13px;
  opacity: 0.75;
}

.news-side-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.news-side-item {
  display: flex;
  gap: 16px;
  padding: 16px;
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--border);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.news-side-item:hover {
  border-color: var(--primary-light);
  box-shadow: 0 4px 16px rgba(91, 181, 232, 0.15);
}

.news-side-thumb {
  flex-shrink: 0;
  width: 100px;
  height: 72px;
  border-radius: 6px;
  overflow: hidden;
}

.news-side-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-side-text h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}

.news-side-item:hover h4 {
  color: var(--primary-dark);
}

.news-side-text time {
  font-size: 13px;
  color: var(--text-muted);
}

.news-mini-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.news-mini-card {
  display: block;
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.news-mini-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(91, 181, 232, 0.18);
}

.news-mini-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.news-mini-body {
  padding: 16px 18px;
}

.news-mini-body .tag-cat {
  font-size: 12px;
  margin-bottom: 8px;
}

.news-mini-body h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 8px;
}

.news-mini-body time {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== 首页：产品中心（新排版） ===== */
.section-products-v2 {
  background: #fff;
  padding: 56px 0;
}

.products-showcase {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 20px;
}

.product-feature {
  grid-row: 1 / -1;
  display: block;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  min-height: 480px;
  background: var(--bg-light);
}

.product-feature img {
  width: 100%;
  height: 100%;
  min-height: 480px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-feature:hover img {
  transform: scale(1.03);
}

.product-feature-info {
  position: absolute;
  inset: auto 0 0 0;
  padding: 32px;
  background: linear-gradient(transparent, rgba(30, 37, 43, 0.85));
  color: #fff;
}

.product-feature-info h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.product-feature-info p {
  font-size: 14px;
  opacity: 0.85;
  margin-bottom: 14px;
}

.product-feature-link {
  font-size: 14px;
  color: var(--primary-light);
}

.product-compact {
  display: flex;
  gap: 20px;
  padding: 20px;
  background: var(--bg-light);
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.product-compact:hover {
  border-color: var(--primary-light);
  box-shadow: 0 6px 20px rgba(91, 181, 232, 0.15);
}

.product-compact-img {
  flex-shrink: 0;
  width: 160px;
  height: 120px;
  border-radius: 8px;
  overflow: hidden;
}

.product-compact-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-compact-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.product-compact-info h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  transition: color var(--transition);
}

.product-compact:hover h3 {
  color: var(--primary-dark);
}

.product-compact-info p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
}

/* ===== 内页：新排版通用 ===== */
.page-body {
  background: var(--bg-light);
  padding: 40px 0 56px;
}

.page-body-white {
  background: #fff;
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 32px;
}

.filter-tab {
  padding: 12px 24px;
  font-size: 15px;
  color: var(--text-light);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  font-family: var(--font);
  transition: color var(--transition), border-color var(--transition);
}

.filter-tab:hover {
  color: var(--primary-dark);
}

.filter-tab.active {
  color: var(--primary-dark);
  font-weight: 600;
  border-bottom-color: var(--primary);
}

.about-stat-card {
  text-align: center;
  padding: 28px 16px;
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(91, 181, 232, 0.08);
}

.about-stat-card strong {
  display: block;
  font-size: 32px;
  color: var(--primary-dark);
  margin-bottom: 6px;
}

.about-stat-card span {
  font-size: 14px;
  color: var(--text-light);
}

.about-split {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 40px;
  align-items: start;
}

.about-split-media {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(91, 181, 232, 0.15);
}

.about-split-media img {
  width: 100%;
  height: auto;
  display: block;
}

.about-split-text {
  background: #fff;
  border-radius: 12px;
  padding: 36px 40px;
  border: 1px solid var(--border);
}

.about-split-text h2 {
  font-size: 24px;
  color: var(--primary-dark);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--primary-light);
  display: inline-block;
}

.about-split-text p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-values-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.about-value-item {
  padding: 28px 24px;
  background: #fff;
  border-radius: 10px;
  border-left: 4px solid var(--primary);
  box-shadow: 0 2px 12px rgba(91, 181, 232, 0.08);
}

.about-value-item h3 {
  font-size: 17px;
  color: var(--text);
  margin-bottom: 10px;
}

.about-value-item p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

.product-list-v2 {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.product-row-card {
  display: flex;
  gap: 28px;
  padding: 24px;
  background: #fff;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.product-row-card:hover {
  border-color: var(--primary-light);
  box-shadow: 0 6px 24px rgba(91, 181, 232, 0.12);
}

.product-row-thumb {
  flex-shrink: 0;
  width: 260px;
  height: 170px;
  border-radius: 8px;
  overflow: hidden;
}

.product-row-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.product-row-card:hover .product-row-thumb img {
  transform: scale(1.04);
}

.product-row-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.product-row-body h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}

.product-row-body h3 a {
  color: var(--text);
  transition: color var(--transition);
}

.product-row-body h3 a:hover {
  color: var(--primary-dark);
}

.product-row-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 16px;
}

.news-grid-v2 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card-v2 {
  display: block;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.news-card-v2:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(91, 181, 232, 0.15);
}

.news-card-v2-thumb {
  height: 180px;
  overflow: hidden;
}

.news-card-v2-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.news-card-v2:hover .news-card-v2-thumb img {
  transform: scale(1.05);
}

.news-card-v2-body {
  padding: 20px;
}

.news-card-v2-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}

.news-card-v2:hover h3 {
  color: var(--primary-dark);
}

.news-card-v2-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-v2-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
}

.contact-cards-v2 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.contact-info-card {
  background: #fff;
  border-radius: 12px;
  padding: 28px 24px;
  border: 1px solid var(--border);
  text-align: center;
  transition: box-shadow var(--transition);
}

.contact-info-card:hover {
  box-shadow: 0 6px 20px rgba(91, 181, 232, 0.12);
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  background: var(--primary-pale);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary-dark);
}

.contact-info-card h4 {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 400;
}

.contact-info-card p {
  font-size: 16px;
  color: var(--text);
  line-height: 1.6;
}

.contact-info-card a {
  color: var(--primary-dark);
}

.contact-qr-wrap {
  display: flex;
  justify-content: center;
}

.contact-qr-box {
  background: #fff;
  border-radius: 12px;
  padding: 32px 40px;
  border: 1px solid var(--border);
  text-align: center;
  box-shadow: 0 4px 20px rgba(91, 181, 232, 0.1);
}

.contact-qr-box img {
  margin: 0 auto 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.questions-grid-v2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.question-block-v2 {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.question-block-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  background: linear-gradient(90deg, var(--primary-pale) 0%, #fff 100%);
  border-bottom: 1px solid var(--border);
}

.question-block-head h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
}

.question-block-head a {
  font-size: 13px;
  color: var(--primary-dark);
}

.question-block-list li {
  border-bottom: 1px solid #f0f4f8;
}

.question-block-list li:last-child {
  border-bottom: none;
}

.question-block-list a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  font-size: 14px;
  color: var(--text);
  transition: background var(--transition), color var(--transition);
}

.question-block-list a:hover {
  background: var(--primary-pale);
  color: var(--primary-dark);
}

.question-block-list .q-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  line-height: 28px;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary-dark);
  background: var(--primary-pale);
  border-radius: 50%;
}

.detail-v2 .detail-main {
  background: #fff;
  border-radius: 12px;
  padding: 36px 40px;
  border: 1px solid var(--border);
}

.detail-v2.page-body {
  padding-top: 32px;
}

.detail-v2.detail-section {
  padding-top: 0;
}

.detail-v2 .sidebar-block {
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(91, 181, 232, 0.06);
}

.question-list-v2 {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.question-card-v2 {
  display: block;
  padding: 24px 28px;
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  transition: box-shadow var(--transition);
}

.question-card-v2:hover {
  box-shadow: 0 4px 16px rgba(91, 181, 232, 0.12);
}

.question-card-v2 h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  transition: color var(--transition);
}

.question-card-v2:hover h3 {
  color: var(--primary-dark);
}

.question-card-v2 p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

.question-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
}

@media (max-width: 1024px) {
  .home-about-inner {
    grid-template-columns: 1fr;
  }

  .home-about-media img {
    min-height: 280px;
  }

  .news-magazine {
    grid-template-columns: 1fr;
  }

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

  .products-showcase {
    grid-template-columns: 1fr;
  }

  .product-feature {
    grid-row: auto;
    min-height: 320px;
  }

  .product-feature img {
    min-height: 320px;
  }

  .about-page-v2 .about-stats-row,
  .about-values-row,
  .news-grid-v2,
  .contact-cards-v2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .home-about-content {
    padding: 32px 24px;
  }

  .section-head-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .news-mini-grid,
  .about-page-v2 .about-stats-row,
  .about-values-row,
  .news-grid-v2,
  .contact-cards-v2,
  .questions-grid-v2 {
    grid-template-columns: 1fr;
  }

  .product-row-card {
    flex-direction: column;
  }

  .product-row-thumb {
    width: 100%;
    height: 200px;
  }

  .detail-v2 .detail-main {
    padding: 24px 20px;
  }
}

/* ===== V3 简约企业风 ===== */
.page-white {
  background: #fff;
  padding: 20px 0 64px;
}

.corp-title-center {
  text-align: center;
  margin-bottom: 40px;
}

.corp-title-center h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.corp-title-center p {
  font-size: 15px;
  color: var(--text-muted);
}

.corp-title-center .title-line {
  width: 48px;
  height: 3px;
  background: var(--primary);
  margin: 16px auto 0;
  border-radius: 2px;
}

/* 首页公司简介 - 居中 */
.home-about-v3 {
  background: #fff;
  padding: 56px 0;
}

.home-about-v3-inner {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.home-about-v3-en {
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.home-about-v3-cn {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.home-about-v3-name {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 20px;
}

.home-about-v3-desc {
  font-size: 15px;
  color: var(--text-light);
  line-height: 2;
  margin-bottom: 32px;
}

.home-about-v3-media {
  margin-bottom: 32px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.home-about-v3-media img {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
}

.btn-more {
  display: inline-block;
  padding: 12px 40px;
  border: 1px solid var(--primary);
  color: var(--primary-dark);
  font-size: 16px;
  border-radius: 2px;
  transition: all var(--transition);
}

.btn-more:hover {
  background: var(--primary);
  color: #fff;
}

/* 首页最新动态 V3 */
.home-news-v3 {
  background: var(--bg-light);
  padding: 56px 0;
}

.news-feature-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.news-feature-item {
  display: block;
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid #eee;
  transition: box-shadow var(--transition);
}

.news-feature-item:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.news-feature-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.news-feature-body {
  padding: 24px;
}

.news-feature-body .tag {
  font-size: 12px;
  color: var(--primary);
  margin-bottom: 10px;
  display: inline-block;
}

.news-feature-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 10px;
  transition: color var(--transition);
}

.news-feature-item:hover h3 {
  color: var(--primary-dark);
}

.news-feature-body time {
  font-size: 13px;
  color: var(--text-muted);
}

.news-list-clean {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 4px;
}

.news-list-clean a {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 18px 28px;
  border-bottom: 1px solid #f0f0f0;
  transition: background var(--transition);
}

.news-list-clean a:last-child {
  border-bottom: none;
}

.news-list-clean a:hover {
  background: var(--primary-pale);
}

.news-list-date {
  flex-shrink: 0;
  width: 72px;
  text-align: center;
}

.news-list-date strong {
  display: block;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.2;
}

.news-list-date span {
  font-size: 12px;
  color: var(--text-muted);
}

.news-list-title {
  flex: 1;
  font-size: 15px;
  color: var(--text);
  line-height: 1.5;
}

.news-list-clean a:hover .news-list-title {
  color: var(--primary-dark);
}

.news-list-tag {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--text-muted);
  padding: 4px 12px;
  border: 1px solid #e0e0e0;
  border-radius: 2px;
}

.section-foot-link {
  text-align: center;
  margin-top: 32px;
}

/* 首页产品中心 V3 */
.home-products-v3 {
  background: #fff;
  padding: 56px 0;
}

.product-row-clean {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-item-clean {
  display: block;
  text-align: center;
  padding: 32px 20px;
  border: 1px solid #eee;
  border-radius: 4px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.product-item-clean:hover {
  border-color: var(--primary-light);
  box-shadow: 0 6px 20px rgba(91, 181, 232, 0.12);
}

.product-item-clean .pic {
  width: 120px;
  height: 120px;
  margin: 0 auto 20px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--bg-light);
}

.product-item-clean .pic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-item-clean h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  transition: color var(--transition);
}

.product-item-clean:hover h3 {
  color: var(--primary-dark);
}

.product-item-clean p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.product-item-clean .link {
  font-size: 13px;
  color: var(--primary);
}

/* 关于我们 - 上下结构 */
.about-stack {
  max-width: 100%;
  margin: 0 auto;
}

.about-stack h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  text-align: center;
  margin-bottom: 32px;
}

.about-stack-text p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 2;
  margin-bottom: 16px;
  text-align: justify;
}

.about-stack-media {
  margin-top: 36px;
  text-align: center;
}

.about-stack-media img {
  width: auto;
  max-width: 520px;
  height: auto;
  max-height: 280px;
  object-fit: cover;
  display: inline-block;
  border-radius: 8px;
}

/* 产品中心 V3 - 卡片网格 */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 24px;
  font-size: 14px;
  color: var(--text-light);
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 2px;
  cursor: pointer;
  font-family: var(--font);
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
}

.products-grid-v3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-card-v3 {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 4px;
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.product-card-v3:hover {
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
}

.product-card-v3-thumb {
  height: 200px;
  overflow: hidden;
}

.product-card-v3-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.product-card-v3:hover .product-card-v3-thumb img {
  transform: scale(1.04);
}

.product-card-v3-body {
  padding: 24px;
}

.product-card-v3-body h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}

.product-card-v3-body h3 a {
  color: var(--text);
  transition: color var(--transition);
}

.product-card-v3-body h3 a:hover {
  color: var(--primary-dark);
}

.product-card-v3-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}

/* 产品详情 - 热门文章 & 侧栏 V3 */
.page-detail-white {
  background: #fff;
  padding: 40px 0 64px;
}

.hot-head-v3 {
  text-align: center;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid #eee;
}

.hot-head-v3 h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.hot-head-v3 span {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 4px;
  text-transform: uppercase;
}

.hot-head-v3 .more {
  display: inline-block;
  margin-top: 12px;
  font-size: 13px;
  color: var(--primary);
}

.hot-articles-v3 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 48px;
}

.hot-articles-v3 a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px dashed #e8e8e8;
  font-size: 15px;
  color: var(--text);
  transition: color var(--transition);
}

.hot-articles-v3 a:hover {
  color: var(--primary-dark);
}

.hot-articles-v3 .num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  line-height: 28px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-dark);
  background: var(--primary-pale);
  border-radius: 4px;
}

.sidebar-v3 .side-panel {
  background: #fff;
  border: 1px solid #eee;
  margin-bottom: 20px;
  border-radius: 4px;
  overflow: hidden;
}

.sidebar-v3 .side-panel-head {
  padding: 14px 20px;
  background: var(--footer-bg);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
}

.sidebar-v3 .side-panel-body {
  padding: 16px 20px;
}

.sidebar-v3 .side-links a {
  display: block;
  padding: 10px 0;
  font-size: 14px;
  color: var(--text-light);
  border-bottom: 1px solid #f5f5f5;
  transition: color var(--transition), padding-left var(--transition);
}

.sidebar-v3 .side-links a:last-child {
  border-bottom: none;
}

.sidebar-v3 .side-links a:hover {
  color: var(--primary-dark);
  padding-left: 6px;
}

.sidebar-v3 .side-contact p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.9;
  margin-bottom: 4px;
}

.sidebar-v3 .side-contact .btn {
  margin-top: 12px;
  width: 100%;
  text-align: center;
}

/* 新闻资讯 V3 */
.news-feed-v3 {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.news-feed-item {
  display: flex;
  gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid #eee;
  align-items: flex-start;
}

.news-feed-item:first-child {
  padding-top: 0;
}

.news-feed-date {
  flex-shrink: 0;
  width: 80px;
  text-align: center;
  padding-top: 4px;
}

.news-feed-date .day {
  display: block;
  font-size: 36px;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1;
}

.news-feed-date .ym {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

.news-feed-thumb {
  flex-shrink: 0;
  width: 240px;
  height: 150px;
  border-radius: 4px;
  overflow: hidden;
}

.news-feed-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-feed-body {
  flex: 1;
  min-width: 0;
}

.news-feed-body .tag {
  font-size: 12px;
  color: var(--primary);
  margin-bottom: 8px;
  display: inline-block;
}

.news-feed-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.4;
  transition: color var(--transition);
}

.news-feed-item:hover h3 {
  color: var(--primary-dark);
}

.news-feed-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
}

/* 联系我们 V3 */
.contact-page .page-white {
  padding: 40px 0 64px;
}

.contact-layout-v3 {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 32px;
  align-items: stretch;
}

.contact-info-v3 {
  border: 1px solid #eee;
  border-radius: 4px;
  overflow: hidden;
  background: #fff;
}

.contact-info-v3 h3 {
  position: relative;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin: 0;
  padding: 14px 24px 14px 28px;
  background: var(--bg-light);
  border-bottom: 1px solid #eee;
  display: block;
}

.contact-info-v3 h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary);
}

.contact-table {
  width: 100%;
  padding: 8px 24px 16px;
}

.contact-table tr {
  border-bottom: 1px solid #f0f0f0;
}

.contact-table tr:last-child {
  border-bottom: none;
}

.contact-table th,
.contact-table td {
  padding: 14px 0;
  font-size: 15px;
  text-align: left;
  vertical-align: middle;
  line-height: 1.6;
}

.contact-table th {
  width: 88px;
  color: var(--text-muted);
  font-weight: 400;
  white-space: nowrap;
}

.contact-table td {
  color: var(--text);
  padding-left: 16px;
}

.contact-table a {
  color: var(--primary-dark);
}

.contact-table a:hover {
  color: var(--primary);
}

.contact-qr-v3 {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-light);
  border: 1px solid #eee;
  border-radius: 4px;
  padding: 32px 24px;
  text-align: center;
}

.contact-qr-v3 img {
  margin: 0 auto 14px;
  border-radius: 4px;
  border: 1px solid #eee;
  background: #fff;
}

.contact-qr-v3 h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.contact-qr-v3 p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.questions-page .page-white {
  padding: 0 0 64px;
}

@media (max-width: 1024px) {
  .product-row-clean {
    grid-template-columns: repeat(2, 1fr);
  }

  .products-grid-v3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .news-feature-row {
    grid-template-columns: 1fr;
  }

  .contact-layout-v3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {

  .product-row-clean,
  .products-grid-v3,
  .hot-articles-v3 {
    grid-template-columns: 1fr;
  }

  .news-feed-item {
    flex-direction: column;
    gap: 16px;
  }

  .news-feed-thumb {
    width: 100%;
    height: 180px;
  }

  .news-list-clean a {
    flex-wrap: wrap;
    gap: 12px;
  }
}

/* ===== V4 参考图布局 ===== */

/* 首页关于我们 - 居中简介 */
.home-about-ref {
  background: #f8f9fa;
  padding: 48px 0 56px;
}

.home-about-ref-desc {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
  font-size: 15px;
  line-height: 2;
  color: var(--text-light);
}

.home-about-ref .corp-title-center {
  margin-bottom: 28px;
}

.home-about-ref .section-foot-link {
  margin-top: 28px;
}

/* 首页最新动态 - 四图 + 双列列表 */
.home-news-ref {
  background: #fff;
  padding: 48px 0 56px;
}

.news-top-four {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.news-top-card {
  display: block;
  min-width: 0;
  overflow: hidden;
  transition: opacity var(--transition);
}

.news-top-card:hover {
  opacity: 0.9;
}

.news-top-card img {
  width: 280px;
  height: 170px;
  max-width: 100%;
  object-fit: cover;
  display: block;
  margin: 0 auto 12px;
}

.news-top-card h4 {
  font-size: 15px;
  font-weight: 400;
  color: var(--text);
  line-height: 1.6;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition);
}

.news-top-card:hover h4 {
  color: var(--primary-dark);
}

.news-dotted-divider {
  border: none;
  border-top: 1px dotted #ccc;
  margin: 0 0 20px;
}

.news-double-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 48px;
}

.news-double-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  min-width: 0;
  font-size: 15px;
  color: var(--text);
  transition: color var(--transition);
}

.news-double-list a:hover {
  color: var(--primary-dark);
}

.news-double-list a::before {
  content: "";
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  background: #ccc;
}

.news-double-col .title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.news-double-list .title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.news-double-col time {
  flex-shrink: 0;
  font-size: 13px;
  color: var(--text-muted);
}

/* 首页产品中心 V4 */
.home-products-v4 {
  background: var(--bg-light);
  padding: 48px 0 56px;
}

.products-mosaic {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-mosaic-item {
  display: block;
  background: #fff;
  border: 1px solid #eee;
  border-radius: 4px;
  overflow: hidden;
  min-width: 0;
  transition: box-shadow var(--transition);
}

.product-mosaic-item:hover {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
}

.product-mosaic-img {
  width: 100%;
  height: 180px;
  overflow: hidden;
}

.product-mosaic-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.product-mosaic-item:hover .product-mosaic-img img {
  transform: scale(1.03);
}

.product-mosaic-body {
  padding: 20px;
}

.product-mosaic-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  transition: color var(--transition);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.product-mosaic-item:hover h3 {
  color: var(--primary-dark);
}

.product-mosaic-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 12px;
}

.product-mosaic-body .link {
  font-size: 13px;
  color: var(--primary);
}

/* 产品中心列表 V4 */
.news-page .filter-bar {
  justify-content: flex-start;
}

.filter-bar .filter-btn {
  font-size: 15px;
}

.products-list-v4 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-line-item {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0;
  background: #fff;
  border: 1px solid #eee;
  border-radius: 4px;
  overflow: hidden;
  min-width: 0;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.product-line-item:hover {
  border-color: var(--primary-light);
  box-shadow: 0 4px 16px rgba(91, 181, 232, 0.1);
}

.product-line-thumb {
  flex-shrink: 0;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 0;
}

.product-line-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.product-line-item:hover .product-line-thumb img {
  transform: scale(1.03);
}

.product-line-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 20px;
  min-width: 0;
  overflow: hidden;
}

.product-line-body h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 10px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.product-line-body h3 a {
  color: var(--text);
  transition: color var(--transition);
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.product-line-body h3 a:hover {
  color: var(--primary-dark);
}

.product-line-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 12px;
  flex: 1;
}

.product-line-link {
  display: inline-block;
  align-self: flex-start;
  font-size: 14px;
  color: var(--primary);
  transition: color var(--transition);
}

.product-line-link:hover {
  color: var(--primary-dark);
}

/* 产品详情 - 热门文章标题左右对齐 */
.hot-head-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.hot-head-row h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.hot-head-row .more {
  font-size: 13px;
  color: var(--primary);
  flex-shrink: 0;
}

.hot-head-row .more:hover {
  text-decoration: underline;
}

/* 侧栏装饰 V4 */
.sidebar-v4 .side-box {
  margin-bottom: 24px;
  border: 1px solid #eee;
  border-radius: 4px;
  overflow: hidden;
}

.sidebar-v4 .side-box-title {
  position: relative;
  padding: 12px 20px 12px 28px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  background: var(--bg-light);
  border-bottom: 1px solid #eee;
}

.sidebar-v4 .side-box-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary);
}

.sidebar-v4 .side-box-body {
  padding: 12px 20px 16px;
  background: #fff;
}

.sidebar-v4 .side-box-links a {
  display: block;
  padding: 9px 0;
  font-size: 15px;
  font-weight: 400;
  color: var(--text-light);
  border-bottom: 1px dashed #f0f0f0;
  transition: color var(--transition), padding-left var(--transition);
}

.sidebar-v4 .side-box-links a:last-child {
  border-bottom: none;
}

.sidebar-v4 .side-box-links a:hover {
  color: var(--primary-dark);
  padding-left: 4px;
}

.sidebar-v4 .side-box-contact p {
  font-size: 15px;
  font-weight: 400;
  color: var(--text-light);
  line-height: 1.9;
  margin-bottom: 4px;
}

.sidebar-v4 .side-box-contact .btn {
  margin-top: 12px;
  width: 100%;
  text-align: center;
}

.sidebar-v4 .side-box-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sidebar-v4 .side-box-tags a {
  padding: 5px 14px;
  font-size: 15px;
  font-weight: 400;
  color: var(--text-light);
  background: var(--bg-light);
  border-radius: 2px;
  transition: all var(--transition);
}

.sidebar-v4 .side-box-tags a:hover {
  background: var(--primary);
  color: #fff;
}

/* 问题列表左侧 V4 */
.question-list-v4 {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
  overflow: hidden;
}

.question-list-v4 .pagination {
  margin-top: 8px;
}

.question-row-item {
  display: block;
  position: relative;
  padding: 24px 28px 24px 32px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  /* transition:
    border-color var(--transition),
    box-shadow var(--transition),
    transform var(--transition); */
}

/* .question-row-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  background: linear-gradient(180deg, var(--primary-light), var(--primary-dark));
  border-radius: 0 3px 3px 0;
  opacity: 0;
  transition: opacity var(--transition), top var(--transition), bottom var(--transition);
} */

.question-row-item:hover {
  border-color: #b8ddf0;
  /* box-shadow: 0 8px 24px rgba(91, 181, 232, 0.14); */
  /* transform: translateY(-2px); */
}

/* .question-row-item:hover::before {
  opacity: 1;
  top: 12px;
  bottom: 12px;
} */

.question-row-num {
  display: none;
}

.question-row-body {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.question-row-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.5;
  transition: color var(--transition);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.question-row-item:hover h3 {
  color: var(--primary-dark);
}

.question-row-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.75;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.question-row-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.question-row-meta .tag {
  font-size: 12px;
  color: var(--primary-dark);
  padding: 4px 12px;
  background: var(--primary-pale);
  border-radius: 20px;
  border: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition);
}

.question-row-item:hover .question-row-meta .tag {
  background: #fff;
  border-color: rgba(91, 181, 232, 0.35);
}

.question-row-meta .more {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  font-size: 13px;
  color: var(--primary);
  padding: 6px 16px;
  border: 1px solid var(--primary);
  border-radius: 20px;
  background: #fff;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.question-row-item:hover .question-row-meta .more {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

@media (max-width: 1024px) {
  .news-top-four {
    grid-template-columns: repeat(2, 1fr);
  }

  .news-double-list {
    grid-template-columns: 1fr;
    gap: 0;
  }

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

  .products-list-v4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .news-top-four {
    grid-template-columns: 1fr;
  }

  .products-mosaic {
    grid-template-columns: 1fr;
  }

  .products-list-v4 {
    grid-template-columns: 1fr;
  }

  .product-mosaic-img {
    height: 160px;
  }
}

/* CMS: 分类链接样式 */
a.filter-btn {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}