/* ============================================
   永友电气 - 工业电磁加热设备制造商
   Complete Stylesheet
   ============================================ */

/* ============================================
   1. Reset & Base
   ============================================ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
    sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: #333;
  background-color: #ffffff;
  overflow-x: hidden;
  /* 源码防护：禁止文字选择和图片拖拽 */
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-user-drag: none;
}

/* 允许表单元素选择 */
input, textarea, select {
  -webkit-user-select: auto;
  -moz-user-select: auto;
  -ms-user-select: auto;
  user-select: auto;
}

/* 禁止图片拖拽 */
img {
  -webkit-user-drag: none;
  -moz-user-drag: none;
  -o-user-drag: none;
  user-drag: none;
  pointer-events: none;
}

/* 联系面板中的二维码图片允许交互 */
.contact-wechat-qr img,
.contact-item img {
  pointer-events: auto;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.25s ease;
}

ul,
ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: #1a1a2e;
}

p {
  margin-bottom: 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================
   2. Header
   ============================================ */
.site-header {
  position: relative;
  z-index: 1000;
}

.header-top {
  background-color: #0C447C;
  color: #ffffff;
  font-size: 13px;
  padding: 8px 0;
}

.header-top .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.header-welcome {
  opacity: 0.9;
}

.header-contact {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-phone,
.header-email {
  display: inline-flex;
  align-items: center;
  opacity: 0.95;
}

.header-main {
  background-color: #ffffff;
  padding: 15px 0;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  position: relative;
}

.header-main .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #155E9A, #0C447C);
  color: #ffffff;
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  letter-spacing: -1px;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 18px;
  font-weight: 700;
  color: #1a1a2e;
  line-height: 1.2;
}

.logo-subtitle {
  font-size: 12px;
  color: #888;
  line-height: 1.2;
  margin-top: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: inline-block;
  padding: 10px 16px;
  font-size: 15px;
  color: #333;
  border-radius: 4px;
  position: relative;
  transition: color 0.25s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background-color: #155E9A;
  transition: width 0.25s ease;
}

.nav-link:hover {
  color: #155E9A;
}

.nav-link:hover::after {
  width: 60%;
}

.nav-link.active {
  color: #155E9A;
}

.nav-link.active::after {
  width: 60%;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 3px;
  background-color: #155E9A;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-overlay.show {
  display: block;
  opacity: 1;
}

/* ============================================
   3. Hero Section
   ============================================ */
.hero {
  width: 100%;
  min-height: 480px;
  background: linear-gradient(135deg, #0C447C 0%, #155E9A 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(239, 159, 39, 0.06) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #ffffff;
}

.hero-content h1 {
  font-size: 42px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.hero-content p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
}

.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   4. Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  text-align: center;
  white-space: nowrap;
  line-height: 1.4;
}

.btn-primary {
  background-color: #155E9A;
  color: #ffffff;
  border-color: #155E9A;
}

.btn-primary:hover {
  background-color: #0C447C;
  border-color: #0C447C;
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(21, 94, 154, 0.3);
}

.btn-outline {
  background-color: transparent;
  color: #155E9A;
  border-color: #155E9A;
}

.btn-outline:hover {
  background-color: #155E9A;
  color: #ffffff;
  border-color: #155E9A;
}

.hero .btn-primary {
  background-color: #ffffff;
  color: #155E9A;
  border-color: #ffffff;
}

.hero .btn-primary:hover {
  background-color: #f0f0f0;
  border-color: #f0f0f0;
  color: #0C447C;
}

.hero .btn-outline {
  background-color: transparent;
  color: #ffffff;
  border-color: #ffffff;
}

.hero .btn-outline:hover {
  background-color: #ffffff;
  color: #155E9A;
  border-color: #ffffff;
}

.btn-lg {
  padding: 14px 36px;
  font-size: 16px;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* ============================================
   5. Sections
   ============================================ */
.section {
  padding: 80px 0;
}

.bg-light {
  background-color: #f5f7fa;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 32px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 12px;
}

.section-header p {
  font-size: 16px;
  color: #666;
}

.section-more {
  text-align: center;
  margin-top: 40px;
}

/* ============================================
   6. Product Grid
   ============================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-card {
  display: block;
  background-color: #ffffff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #eef1f5;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
}

.product-image {
  height: 240px;
  background-color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  padding: 12px;
}

.product-image img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: transform 0.4s ease;
}

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

.product-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #e8ecf1, #d8dee6);
}

.product-image-placeholder span {
  font-size: 20px;
  font-weight: 700;
  color: #8a9aaa;
  letter-spacing: 1px;
}

.product-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background-color: #EF9F27;
  color: #ffffff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  z-index: 2;
}

.product-info {
  padding: 16px;
}

.product-category {
  display: inline-block;
  font-size: 12px;
  color: #155E9A;
  font-weight: 600;
  margin-bottom: 6px;
}

.product-info h3 {
  font-size: 16px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 6px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card:hover .product-info h3 {
  color: #155E9A;
}

.product-desc {
  font-size: 13px;
  color: #888;
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-more {
  display: inline-block;
  font-size: 13px;
  color: #155E9A;
  font-weight: 600;
  transition: color 0.25s ease;
}

.product-card:hover .product-more {
  color: #EF9F27;
}

/* ============================================
   7. Category Grid
   ============================================ */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.category-card {
  display: block;
  text-align: center;
  padding: 32px 20px;
  background-color: #ffffff;
  border: 1px solid #e8ecf1;
  border-radius: 8px;
  transition: box-shadow 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}

.category-card:hover {
  box-shadow: 0 12px 28px rgba(21, 94, 154, 0.12);
  border-color: #155E9A;
  transform: translateY(-4px);
}

.category-icon {
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: #155E9A;
}

.category-icon svg {
  width: 48px;
  height: 48px;
}

.category-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 8px;
}

.category-card:hover h3 {
  color: #155E9A;
}

.category-card p {
  font-size: 13px;
  color: #888;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 分类卡片 - 带图片版 */
.category-card-with-image {
  padding: 0;
  overflow: hidden;
  text-align: left;
  display: flex;
  flex-direction: column;
}

.category-card-with-image .category-image {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background-color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

.category-card-with-image .category-image img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: transform 0.45s ease;
}

.category-card-with-image:hover .category-image img {
  transform: scale(1.08);
}

.category-image-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(21, 94, 154, 0) 0%, rgba(21, 94, 154, 0) 50%, rgba(21, 94, 154, 0.08) 100%);
  pointer-events: none;
}

.category-card-with-image .category-content {
  padding: 18px 20px 20px;
}

.category-card-with-image .category-content h3 {
  font-size: 17px;
  margin-bottom: 6px;
  transition: color 0.3s ease;
}

.category-card-with-image:hover .category-content h3 {
  color: #155E9A;
}

.category-card-with-image .category-content p {
  font-size: 13px;
  margin-bottom: 10px;
}

.category-product-count {
  display: inline-block;
  font-size: 12px;
  color: #155E9A;
  background-color: #e6f1fb;
  padding: 3px 10px;
  border-radius: 10px;
  font-weight: 500;
}

/* ============================================
   8. Advantages
   ============================================ */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.advantage-card {
  padding: 28px 24px;
  background-color: #ffffff;
  border-left: 3px solid #155E9A;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.advantage-card:hover {
  transform: translateX(4px);
  box-shadow: 0 8px 20px rgba(21, 94, 154, 0.1);
}

.advantage-num {
  font-size: 28px;
  font-weight: 800;
  color: #155E9A;
  margin-bottom: 8px;
  line-height: 1;
}

.advantage-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 8px;
}

.advantage-card p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

/* ============================================
   9. Applications
   ============================================ */
.applications-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.app-tag {
  display: inline-block;
  padding: 8px 20px;
  background-color: #e6f1fb;
  color: #155E9A;
  font-size: 14px;
  font-weight: 500;
  border-radius: 20px;
  transition: all 0.25s ease;
}

.app-tag:hover {
  background-color: #155E9A;
  color: #ffffff;
  transform: translateY(-2px);
}

/* ============================================
   10. News Grid (Homepage)
   ============================================ */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  display: block;
  background-color: #ffffff;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #eef1f5;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
}

.news-image {
  height: 200px;
  overflow: hidden;
  background-color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

.news-image img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: transform 0.4s ease;
}

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

.news-info {
  padding: 20px;
}

.news-date {
  display: inline-block;
  font-size: 13px;
  color: #999;
  margin-bottom: 8px;
}

.news-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.25s ease;
}

.news-card:hover h3 {
  color: #155E9A;
}

.news-info p {
  font-size: 13px;
  color: #888;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================
   11. CTA Section
   ============================================ */
.cta-section {
  background-color: #155E9A;
  text-align: center;
  color: #ffffff;
  padding: 60px 0;
}

.cta-section h2 {
  font-size: 28px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}

.cta-section p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 28px;
}

.cta-section .btn-primary {
  background-color: #EF9F27;
  border-color: #EF9F27;
  color: #ffffff;
}

.cta-section .btn-primary:hover {
  background-color: #d88a14;
  border-color: #d88a14;
  color: #ffffff;
}

/* ============================================
   12. Footer
   ============================================ */
.site-footer {
  background-color: #0C1A2D;
  color: #a0b4c8;
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  padding-bottom: 40px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-col p {
  font-size: 14px;
  color: #a0b4c8;
  line-height: 1.7;
  margin-bottom: 8px;
}

.footer-col p strong {
  color: #c8d6e5;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: #a0b4c8;
  padding: 4px 0;
  transition: color 0.25s ease, padding-left 0.25s ease;
}

.footer-col a:hover {
  color: #ffffff;
  padding-left: 6px;
}

.footer-slogan {
  font-style: italic;
  margin-top: 8px;
  color: #8a9fb5;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: #6a8098;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom a {
  color: #6a8098;
  transition: color 0.25s ease;
}

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

/* ============================================
   13. Page Banner
   ============================================ */
.page-banner {
  background: linear-gradient(135deg, #0C447C 0%, #155E9A 100%);
  padding: 80px 0 40px;
  color: #ffffff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
  border-radius: 50%;
}

.page-banner h1, .page-banner h2 {
  font-size: 36px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
  position: relative;
  z-index: 2;
}

.page-banner p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  position: relative;
  z-index: 2;
}

.page-banner-sm {
  padding: 60px 0 30px;
}

.page-banner-sm h1 {
  font-size: 28px;
}

/* ============================================
   14. Breadcrumb
   ============================================ */
.breadcrumb {
  background-color: #f5f7fa;
  padding: 12px 0;
  border-bottom: 1px solid #e8ecf1;
  font-size: 13px;
}

.breadcrumb .container {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: #155E9A;
  transition: color 0.25s ease;
}

.breadcrumb a:hover {
  color: #EF9F27;
}

.breadcrumb-separator {
  margin: 0 8px;
  color: #999;
}

.breadcrumb-current {
  color: #666;
}

/* ============================================
   15. Products Layout
   ============================================ */
.products-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 20px;
  align-self: start;
  z-index: 10;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  scrollbar-width: thin;
}

.sidebar::-webkit-scrollbar {
  width: 4px;
}

.sidebar::-webkit-scrollbar-thumb {
  background-color: rgba(21, 94, 154, 0.3);
  border-radius: 2px;
}

.sidebar-widget {
  background-color: #ffffff;
  border: 1px solid #e8ecf1;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.sidebar-widget h3 {
  font-size: 16px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid #155E9A;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-widget h3 .sidebar-toggle {
  display: none;
  font-size: 18px;
  cursor: pointer;
  color: #155E9A;
  background: none;
  border: none;
  padding: 0;
  line-height: 1;
}

.category-list li {
  margin-bottom: 2px;
}

.category-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  font-size: 14px;
  color: #555;
  border-radius: 4px;
  transition: background-color 0.25s ease, color 0.25s ease, padding-left 0.25s ease;
  border-left: 3px solid transparent;
}

.category-list a:hover {
  background-color: #e6f1fb;
  color: #155E9A;
  padding-left: 16px;
}

.category-list a.active {
  background-color: #155E9A;
  color: #ffffff;
  border-left-color: #EF9F27;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(21, 94, 154, 0.25);
}

.category-count {
  font-size: 12px;
  background-color: #e8ecf1;
  color: #666;
  padding: 2px 8px;
  border-radius: 10px;
}

.category-list a.active .category-count {
  background-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

.sidebar-contact-cta {
  background: linear-gradient(135deg, #155E9A, #0C447C);
  color: #ffffff;
  text-align: center;
}

.sidebar-contact-cta h3 {
  color: #ffffff;
  border-bottom-color: rgba(255, 255, 255, 0.3);
}

.sidebar-contact-cta p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 16px;
  line-height: 1.6;
}

.sidebar-contact-cta .btn-primary {
  background-color: #EF9F27;
  border-color: #EF9F27;
}

.sidebar-contact-cta .btn-primary:hover {
  background-color: #d88a14;
  border-color: #d88a14;
}

.sidebar-nav-list li {
  margin-bottom: 2px;
}

.sidebar-nav-list a {
  display: block;
  padding: 10px 12px;
  font-size: 14px;
  color: #555;
  border-radius: 4px;
  transition: background-color 0.25s ease, color 0.25s ease, padding-left 0.25s ease;
}

.sidebar-nav-list a:hover {
  background-color: #e6f1fb;
  color: #155E9A;
  padding-left: 16px;
}

.products-main {
  min-width: 0;
}

.products-main-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 2px solid #e8ecf1;
}

.products-main-header h2 {
  font-size: 22px;
  font-weight: 700;
  color: #1a1a2e;
}

.products-count {
  font-size: 14px;
  color: #888;
}

.category-description {
  background-color: #f5f7fa;
  padding: 16px 20px;
  border-radius: 6px;
  margin-bottom: 24px;
  border-left: 3px solid #155E9A;
}

.category-description p {
  font-size: 14px;
  color: #555;
  line-height: 1.6;
}

/* ============================================
   16. Product Detail
   ============================================ */
.product-detail-main {
  min-width: 0;
}

.product-detail-section {
  padding: 60px 0;
}

.product-detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
  align-items: start;
}

.product-detail-image {
  position: relative;
}

.product-detail-image img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.product-image-large-placeholder {
  width: 100%;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: linear-gradient(135deg, #f0f3f7, #e0e6ee);
  border-radius: 8px;
}

.product-image-large-placeholder span {
  font-size: 22px;
  font-weight: 700;
  color: #8a9aaa;
}

.product-model-badge {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background-color: rgba(21, 94, 154, 0.9);
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 6px;
}

.product-detail-info {
  padding: 0;
}

.product-detail-category {
  display: inline-block;
  margin-bottom: 10px;
}

.product-detail-category a {
  font-size: 13px;
  color: #155E9A;
  font-weight: 600;
  background-color: #e6f1fb;
  padding: 4px 12px;
  border-radius: 4px;
  transition: all 0.25s ease;
}

.product-detail-category a:hover {
  background-color: #155E9A;
  color: #ffffff;
}

.product-detail-title {
  font-size: 26px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 20px;
  line-height: 1.3;
}

.product-highlight-box {
  background-color: #e6f1fb;
  padding: 16px 20px;
  border-left: 4px solid #155E9A;
  border-radius: 4px;
  margin-bottom: 24px;
}

.product-highlight-box strong {
  color: #155E9A;
  font-size: 14px;
}

.product-highlight-box span {
  font-size: 14px;
  color: #444;
  line-height: 1.6;
}

.product-features-list {
  margin-bottom: 24px;
}

.product-features-list h3 {
  font-size: 16px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 12px;
}

.product-features-list ul {
  list-style: none;
}

.product-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: #555;
  margin-bottom: 10px;
  line-height: 1.5;
}

.feature-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background-color: #4caf50;
  color: #ffffff;
  font-size: 12px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 1px;
}

.product-detail-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.product-specs-wrapper {
  margin-bottom: 40px;
}

.product-section-title {
  font-size: 22px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #e8ecf1;
  position: relative;
}

.product-section-title::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 60px;
  height: 2px;
  background-color: #155E9A;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid #e0e6ee;
  border-radius: 6px;
  overflow: hidden;
}

.specs-table th,
.specs-table td {
  padding: 12px 16px;
  font-size: 14px;
  text-align: left;
  border: 1px solid #e0e6ee;
}

.specs-table th {
  background-color: #e8ecf1;
  color: #333;
  font-weight: 600;
  width: 200px;
}

.specs-table td {
  color: #555;
}

.specs-table tr:nth-child(even) td {
  background-color: #f8fafc;
}

/* 富文本 specs 内容容器 */
.specs-html {
  font-size: 14px;
  color: #555;
  line-height: 1.7;
}
.specs-html p { margin: 8px 0; }
.specs-html table { margin: 12px 0; }
.specs-html table.specs-table { width: 100%; }

.product-applications-wrapper {
  margin-bottom: 40px;
}

.product-applications-content p {
  font-size: 14px;
  color: #555;
  line-height: 1.7;
}

.application-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.product-features-detail {
  margin-bottom: 40px;
}

.features-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-detail-item {
  display: flex;
  gap: 14px;
  padding: 20px;
  background-color: #f8fafc;
  border-radius: 6px;
  border: 1px solid #eef1f5;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.feature-detail-item:hover {
  box-shadow: 0 4px 12px rgba(21, 94, 154, 0.1);
  transform: translateY(-2px);
}

.feature-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: #155E9A;
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  border-radius: 50%;
  flex-shrink: 0;
}

.feature-detail-item p {
  font-size: 14px;
  color: #555;
  line-height: 1.6;
}

.related-products-section {
  padding: 60px 0;
}

/* ============================================
   17. Contact Layout
   ============================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-info-col {
  min-width: 0;
}

.contact-info-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.contact-info-card {
  padding: 24px 16px;
  background-color: #ffffff;
  border: 1px solid #e8ecf1;
  border-radius: 8px;
  text-align: center;
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}

.contact-info-card:hover {
  box-shadow: 0 8px 20px rgba(21, 94, 154, 0.1);
  transform: translateY(-4px);
  border-color: #155E9A;
}

.contact-info-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.contact-info-text h3 {
  font-size: 15px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 6px;
}

.contact-info-text p {
  font-size: 14px;
  color: #155E9A;
  font-weight: 500;
  line-height: 1.5;
}

.contact-page-content {
  background-color: #f5f7fa;
  padding: 24px;
  border-radius: 8px;
  font-size: 14px;
  color: #555;
  line-height: 1.8;
}

.contact-page-content h2,
.contact-page-content h3 {
  margin-bottom: 12px;
}

.contact-page-content p {
  margin-bottom: 10px;
}

.contact-form-col {
  min-width: 0;
}

.contact-form-wrapper {
  background-color: #ffffff;
  padding: 32px;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  border: 1px solid #eef1f5;
}

.contact-form-wrapper h2 {
  font-size: 22px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 8px;
}

.contact-form-intro {
  font-size: 14px;
  color: #888;
  margin-bottom: 24px;
}

.contact-form {
  width: 100%;
}

/* ============================================
   18. Forms
   ============================================ */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #333;
  margin-bottom: 6px;
}

.required {
  color: #e53935;
  margin-left: 2px;
}

.form-control {
  width: 100%;
  padding: 12px 14px;
  font-size: 14px;
  font-family: inherit;
  color: #333;
  background-color: #ffffff;
  border: 1px solid #d0d6de;
  border-radius: 6px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  outline: none;
}

.form-control::placeholder {
  color: #b0b8c2;
}

.form-control:focus {
  border-color: #155E9A;
  box-shadow: 0 0 0 3px rgba(21, 94, 154, 0.12);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-actions {
  margin-top: 20px;
}

.btn-submit {
  width: 100%;
  background-color: #155E9A;
  color: #ffffff;
  border: none;
  padding: 14px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.25s ease;
}

.btn-submit:hover {
  background-color: #0C447C;
}

.form-notice {
  font-size: 12px;
  color: #999;
  text-align: center;
  margin-top: 16px;
  line-height: 1.6;
}

/* ============================================
   19. Page Content Layout
   ============================================ */
.page-content-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 32px;
  align-items: start;
}

.page-content-main {
  min-width: 0;
}

.page-article {
  font-size: 15px;
  color: #333;
  line-height: 1.8;
}

.page-article h2 {
  font-size: 24px;
  font-weight: 700;
  color: #1a1a2e;
  margin: 24px 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid #e8ecf1;
}

.page-article h3 {
  font-size: 18px;
  font-weight: 700;
  color: #1a1a2e;
  margin: 20px 0 10px;
}

.page-article p {
  font-size: 15px;
  color: #444;
  margin-bottom: 14px;
  line-height: 1.8;
}

.page-article ul,
.page-article ol {
  margin: 10px 0 16px 20px;
  padding-left: 20px;
}

.page-article ul li,
.page-article ol li {
  font-size: 15px;
  color: #444;
  margin-bottom: 6px;
  line-height: 1.7;
  list-style: disc;
}

.page-article ol li {
  list-style: decimal;
}

.page-article img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  margin: 16px 0;
}

.page-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}

.page-article table th,
.page-article table td {
  padding: 10px 14px;
  border: 1px solid #e0e6ee;
  font-size: 14px;
}

.page-article table th {
  background-color: #e8ecf1;
  font-weight: 600;
}

.page-article blockquote {
  border-left: 4px solid #155E9A;
  padding: 10px 20px;
  margin: 16px 0;
  background-color: #f5f7fa;
  color: #555;
  font-style: italic;
}

.page-sidebar {
  position: sticky;
  top: 20px;
}

/* ============================================
   20. Empty State
   ============================================ */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  background-color: #f5f7fa;
  border-radius: 8px;
}

.empty-icon {
  font-size: 64px;
  color: #ccc;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-state p {
  font-size: 16px;
  color: #888;
  margin-bottom: 20px;
}

/* ============================================
   21. News List Layout
   ============================================ */
.news-list-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 32px;
  align-items: start;
}

.news-list-main {
  min-width: 0;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.news-list-item {
  border-bottom: 1px solid #e8ecf1;
  transition: background-color 0.25s ease;
}

.news-list-item:hover {
  background-color: #f8fafc;
}

.news-list-link {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  align-items: flex-start;
}

.news-list-image {
  width: 200px;
  height: 130px;
  flex-shrink: 0;
  overflow: hidden;
  border-radius: 6px;
  background-color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
}

.news-list-image img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: transform 0.4s ease;
}

.news-list-item:hover .news-list-image img {
  transform: scale(1.05);
}

.news-list-image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #e8ecf1, #d8dee6);
}

.news-list-content {
  flex: 1;
  min-width: 0;
}

.news-list-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.news-list-date {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: #999;
}

.news-list-category {
  display: inline-block;
  font-size: 12px;
  color: #155E9A;
  background-color: #e6f1fb;
  padding: 2px 10px;
  border-radius: 10px;
  font-weight: 500;
}

.news-list-content h2 {
  font-size: 18px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 8px;
  line-height: 1.4;
  transition: color 0.25s ease;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-list-item:hover .news-list-content h2 {
  color: #155E9A;
}

.news-list-summary {
  font-size: 14px;
  color: #777;
  line-height: 1.6;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-list-more {
  display: inline-block;
  font-size: 13px;
  color: #155E9A;
  font-weight: 600;
}

.news-list-item:hover .news-list-more {
  color: #EF9F27;
}

/* ============================================
   22. Pagination
   ============================================ */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.pagination a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 8px 16px;
  font-size: 14px;
  color: #555;
  border: 1px solid #d0d6de;
  border-radius: 6px;
  transition: all 0.25s ease;
}

.pagination a:hover {
  border-color: #155E9A;
  color: #155E9A;
  background-color: #e6f1fb;
}

.pagination a.active {
  background-color: #155E9A;
  color: #ffffff;
  border-color: #155E9A;
}

.pagination-numbers {
  display: flex;
  gap: 6px;
  align-items: center;
}

.pagination-ellipsis {
  padding: 0 8px;
  color: #999;
  font-size: 14px;
}

.pagination-prev,
.pagination-next {
  font-weight: 600;
}

/* ============================================
   23. News Detail Layout
   ============================================ */
.news-detail-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 32px;
  align-items: start;
}

.news-detail-main {
  min-width: 0;
}

.news-article {
  background-color: #ffffff;
  border-radius: 8px;
  overflow: hidden;
}

.news-article-header {
  padding-bottom: 20px;
  border-bottom: 1px solid #e8ecf1;
  margin-bottom: 24px;
}

.news-article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.news-article-date {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: #999;
}

.news-article-category {
  display: inline-block;
  font-size: 12px;
  color: #155E9A;
  background-color: #e6f1fb;
  padding: 2px 10px;
  border-radius: 10px;
  font-weight: 500;
}

.news-article-title {
  font-size: 26px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 12px;
  line-height: 1.3;
}

.news-article-summary {
  font-size: 15px;
  color: #666;
  line-height: 1.7;
  padding: 14px 20px;
  background-color: #f5f7fa;
  border-radius: 6px;
  border-left: 3px solid #155E9A;
}

.news-article-image {
  margin-bottom: 24px;
}

.news-article-image img {
  width: 100%;
  border-radius: 6px;
}

.news-article-content {
  font-size: 15px;
  color: #333;
  line-height: 1.8;
}

.news-article-content h2 {
  font-size: 22px;
  font-weight: 700;
  color: #1a1a2e;
  margin: 24px 0 12px;
}

.news-article-content h3 {
  font-size: 18px;
  font-weight: 700;
  color: #1a1a2e;
  margin: 20px 0 10px;
}

.news-article-content p {
  font-size: 15px;
  color: #444;
  margin-bottom: 14px;
  line-height: 1.8;
}

.news-article-content ul,
.news-article-content ol {
  margin: 10px 0 16px 20px;
  padding-left: 20px;
}

.news-article-content ul li {
  list-style: disc;
  font-size: 15px;
  color: #444;
  margin-bottom: 6px;
  line-height: 1.7;
}

.news-article-content ol li {
  list-style: decimal;
  font-size: 15px;
  color: #444;
  margin-bottom: 6px;
  line-height: 1.7;
}

.news-article-content img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  margin: 16px 0;
}

.news-article-content blockquote {
  border-left: 4px solid #155E9A;
  padding: 10px 20px;
  margin: 16px 0;
  background-color: #f5f7fa;
  color: #555;
  font-style: italic;
}

.news-article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}

.news-article-content table th,
.news-article-content table td {
  padding: 10px 14px;
  border: 1px solid #e0e6ee;
  font-size: 14px;
}

.news-article-content table th {
  background-color: #e8ecf1;
  font-weight: 600;
}

.news-article-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  margin-top: 24px;
  border-top: 1px solid #e8ecf1;
  flex-wrap: wrap;
  gap: 16px;
}

.news-article-share {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #666;
}

.share-link {
  display: inline-block;
  padding: 6px 14px;
  font-size: 13px;
  color: #555;
  border: 1px solid #d0d6de;
  border-radius: 4px;
  transition: all 0.25s ease;
}

.share-link:hover {
  background-color: #155E9A;
  color: #ffffff;
  border-color: #155E9A;
}

.related-articles {
  margin-top: 40px;
}

.news-section-title {
  font-size: 20px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #e8ecf1;
  position: relative;
}

.news-section-title::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 60px;
  height: 2px;
  background-color: #155E9A;
}

.related-articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.related-article-card {
  display: flex;
  gap: 14px;
  background-color: #ffffff;
  border: 1px solid #e8ecf1;
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.related-article-card:hover {
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.related-article-image {
  width: 120px;
  height: 100px;
  flex-shrink: 0;
  overflow: hidden;
  background-color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
}

.related-article-image img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}

.related-article-info {
  padding: 12px 14px;
  flex: 1;
  min-width: 0;
}

.related-article-date {
  display: inline-block;
  font-size: 12px;
  color: #999;
  margin-bottom: 4px;
}

.related-article-info h4 {
  font-size: 14px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 4px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.25s ease;
}

.related-article-card:hover h4 {
  color: #155E9A;
}

.related-article-info p {
  font-size: 12px;
  color: #888;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-sidebar {
  position: sticky;
  top: 20px;
}

/* ============================================
   24. Success Page
   ============================================ */
.success-section {
  padding: 60px 0;
}

.success-wrapper {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  background-color: #ffffff;
  padding: 48px 40px;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  border: 1px solid #eef1f5;
}

.success-icon {
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.success-wrapper h2 {
  font-size: 26px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 16px;
}

.success-message {
  font-size: 15px;
  color: #555;
  line-height: 1.8;
  margin-bottom: 28px;
}

.success-message a {
  color: #155E9A;
  font-weight: 600;
}

.success-message a:hover {
  color: #EF9F27;
}

.success-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.success-tips {
  background-color: #f5f7fa;
  padding: 24px;
  border-radius: 6px;
  text-align: left;
}

.success-tips h3 {
  font-size: 16px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 12px;
}

.success-tips ul {
  list-style: none;
}

.success-tips li {
  font-size: 14px;
  color: #555;
  margin-bottom: 8px;
  padding-left: 20px;
  position: relative;
  line-height: 1.6;
}

.success-tips li::before {
  content: "\2022";
  position: absolute;
  left: 4px;
  color: #155E9A;
  font-weight: 700;
}

.success-tips a {
  color: #155E9A;
  transition: color 0.25s ease;
}

.success-tips a:hover {
  color: #EF9F27;
}

/* ============================================
   25. 404 Error Page
   ============================================ */
.error-page-section {
  text-align: center;
  padding: 80px 0;
  min-height: 500px;
  display: flex;
  align-items: center;
}

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

.error-code {
  font-size: 120px;
  font-weight: 800;
  color: #155E9A;
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -4px;
}

.error-wrapper h1 {
  font-size: 28px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 16px;
}

.error-message {
  font-size: 15px;
  color: #666;
  line-height: 1.8;
  margin-bottom: 28px;
}

.error-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.error-suggestions {
  background-color: #f5f7fa;
  padding: 28px;
  border-radius: 8px;
  text-align: left;
  margin-bottom: 24px;
}

.error-suggestions h2 {
  font-size: 18px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 14px;
}

.error-links {
  list-style: none;
}

.error-links li {
  margin-bottom: 8px;
}

.error-links a {
  font-size: 14px;
  color: #155E9A;
  transition: color 0.25s ease, padding-left 0.25s ease;
  display: inline-block;
}

.error-links a:hover {
  color: #EF9F27;
  padding-left: 6px;
}

.error-contact {
  font-size: 14px;
  color: #666;
}

.error-contact a {
  color: #155E9A;
  font-weight: 600;
}

.error-contact a:hover {
  color: #EF9F27;
}

/* ============================================
   26. Loading & Image Lazy Styles
   ============================================ */
img[loading="lazy"] {
  background-color: #f0f3f7;
}

img {
  transition: opacity 0.3s ease;
}

/* ============================================
   27. Utility & Misc
   ============================================ */
.clearfix::before,
.clearfix::after {
  content: "";
  display: table;
}

.clearfix::after {
  clear: both;
}

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-20 { margin-top: 20px !important; }
.mb-20 { margin-bottom: 20px !important; }

/* ============================================
   28. Responsive - max-width: 1024px
   ============================================ */
@media (max-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .product-detail-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .product-image-large-placeholder {
    min-height: 300px;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .sidebar,
  .news-sidebar,
  .page-sidebar {
    position: static;
    max-height: none;
  }

  .sidebar-widget h3 .sidebar-toggle {
    display: inline-block;
  }

  .sidebar-widget.collapsed .category-list,
  .sidebar-widget.collapsed .sidebar-contact-cta {
    display: none;
  }

  .sidebar-widget h3 {
    cursor: pointer;
  }

  .features-detail-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-content h1 {
    font-size: 36px;
  }

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

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

/* ============================================
   29. Responsive - max-width: 768px
   ============================================ */
@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: #ffffff;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    padding: 12px;
    gap: 0;
    z-index: 1001;
    border-top: 1px solid #e8ecf1;
  }

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

  .main-nav .nav-link {
    width: 100%;
    padding: 14px 16px;
    border-radius: 4px;
    border-bottom: 1px solid #f0f3f7;
  }

  .main-nav .nav-link::after {
    display: none;
  }

  .main-nav .nav-link:hover,
  .main-nav .nav-link.active {
    background-color: #e6f1fb;
  }

  .header-top {
    font-size: 12px;
  }

  .header-top .container {
    justify-content: center;
    text-align: center;
  }

  .header-contact {
    gap: 12px;
  }

  .header-welcome {
    display: none;
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .advantages-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }

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

  .sidebar,
  .news-sidebar,
  .page-sidebar {
    position: static;
  }

  .hero {
    min-height: 360px;
    padding: 40px 0;
  }

  .hero-content h1 {
    font-size: 28px;
  }

  .hero-content p {
    font-size: 16px;
  }

  .section {
    padding: 48px 0;
  }

  .section-header {
    margin-bottom: 32px;
  }

  .section-header h2 {
    font-size: 24px;
  }

  .section-header p {
    font-size: 14px;
  }

  .page-banner {
    padding: 60px 0 30px;
  }

  .page-banner h1, .page-banner h2 {
    font-size: 26px;
  }

  .page-banner-sm {
    padding: 48px 0 24px;
  }

  .page-banner-sm h1 {
    font-size: 22px;
  }

  .breadcrumb {
    font-size: 12px;
  }

  .products-main-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .products-main-header h2 {
    font-size: 20px;
  }

  .product-image {
    height: 180px;
  }

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

  .news-card .news-image {
    height: 200px;
  }

  .contact-info-cards {
    grid-template-columns: 1fr;
  }

  .contact-form-wrapper {
    padding: 24px 20px;
  }

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

  .news-list-image {
    width: 100%;
    height: 180px;
  }

  .news-article-title {
    font-size: 22px;
  }

  .news-article-content {
    font-size: 14px;
  }

  .cta-section {
    padding: 40px 0;
  }

  .cta-section h2 {
    font-size: 22px;
  }

  .cta-section p {
    font-size: 14px;
  }

  .success-wrapper {
    padding: 32px 20px;
  }

  .success-wrapper h2 {
    font-size: 22px;
  }

  .success-actions {
    flex-direction: column;
  }

  .success-actions .btn {
    width: 100%;
  }

  .error-code {
    font-size: 80px;
  }

  .error-wrapper h1 {
    font-size: 22px;
  }

  .error-actions {
    flex-direction: column;
  }

  .error-actions .btn {
    width: 100%;
  }

  .btn {
    padding: 10px 22px;
    font-size: 14px;
  }

  .btn-lg {
    padding: 12px 28px;
    font-size: 15px;
  }

  .logo-subtitle {
    display: none;
  }

  .logo-title {
    font-size: 16px;
  }

  .specs-table th {
    width: 120px;
  }

  .product-detail-actions {
    flex-direction: column;
  }

  .product-detail-actions .btn {
    width: 100%;
  }

  .news-article-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-btns {
    flex-direction: column;
    width: 100%;
    padding: 0 20px;
  }

  .hero-btns .btn {
    width: 100%;
  }
}

/* ============================================
   30. Responsive - max-width: 480px
   ============================================ */
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

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

  .categories-grid {
    grid-template-columns: 1fr;
  }

  .product-image {
    height: 200px;
  }

  .category-card {
    padding: 24px 16px;
  }

  .category-card-with-image .category-image {
    height: 160px;
  }

  .category-card-with-image .category-content {
    padding: 14px 16px 16px;
  }

  .header-contact {
    flex-direction: column;
    gap: 4px;
    text-align: center;
  }

  .header-top .container {
    flex-direction: column;
    gap: 4px;
  }

  .logo-icon {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }

  .logo-title {
    font-size: 14px;
  }

  .hero-content h1 {
    font-size: 24px;
  }

  .hero-content p {
    font-size: 14px;
  }

  .section-header h2 {
    font-size: 20px;
  }

  .advantage-card {
    padding: 20px 16px;
  }

  .contact-form-wrapper {
    padding: 20px 16px;
  }

  .success-wrapper {
    padding: 24px 16px;
  }
}

/* ============================================
   31. Print Styles
   ============================================ */
/* ============================================
   新增组件样式 - 搜索栏、客户案例、FAQ、荣誉资质等
   ============================================ */

/* --- 顶栏优化 --- */
.top-bar {
  background-color: #0C447C;
  color: #fff;
  font-size: 13px;
  padding: 6px 0;
}
.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.top-welcome { opacity: 0.9; }
.top-links { display: flex; gap: 12px; }
.top-links a { color: #fff; opacity: 0.85; transition: opacity 0.2s; }
.top-links a:hover { opacity: 1; }

/* --- 主导航优化 --- */
.main-header {
  background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  position: sticky; top: 0; z-index: 1000;
}
.main-header .container {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0; gap: 20px;
}
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo .logo-icon {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, #155E9A, #0C447C);
  color: #fff; font-size: 18px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px; letter-spacing: -1px;
}
.logo .logo-text { display: flex; flex-direction: column; }
.logo .logo-name { font-size: 18px; color: #1a1a2e; line-height: 1.2; font-weight: 700; }
.logo-tagline { font-size: 12px; color: #888; line-height: 1.2; margin-top: 2px; }
.header-contact { text-align: right; flex-shrink: 0; }
.header-phone-label { display: block; font-size: 12px; color: #888; }
.header-phone { display: block; font-size: 22px; font-weight: 700; color: #EF9F27; }
.main-nav { background: #155E9A; }
.main-nav ul { display: flex; justify-content: center; }
.main-nav ul li a {
  display: block; padding: 14px 24px; color: #fff; font-size: 15px;
  transition: background 0.25s; white-space: nowrap;
}
.main-nav ul li a:hover,
.main-nav ul li a.active { background: #0C447C; }

/* --- 搜索栏 --- */
.search-bar { background: #f5f5f5; border-bottom: 1px solid #e0e0e0; padding: 12px 0; }
.search-bar .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.search-hot { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 13px; color: #666; }
.search-hot b { font-weight: 600; color: #333; }
.search-hot a { color: #155E9A; padding: 2px 6px; border-radius: 3px; }
.search-hot a:hover { background: #e8f0fe; }
.search-form { display: flex; gap: 0; flex-shrink: 0; }
.search-input {
  width: 220px; padding: 8px 14px; border: 2px solid #155E9A; border-right: 0;
  border-radius: 4px 0 0 4px; font-size: 14px; outline: none;
}
.search-btn {
  padding: 8px 18px; background: #155E9A; color: #fff; border: 2px solid #155E9A;
  border-radius: 0 4px 4px 0; cursor: pointer; font-size: 14px; transition: background 0.2s;
}
.search-btn:hover { background: #0C447C; }

/* --- 搜索页面 --- */
.search-page { max-width: 800px; margin: 0 auto; }
.search-form-lg { display: flex; gap: 12px; margin-bottom: 30px; }
.search-input-lg { flex: 1; padding: 12px 18px; border: 2px solid #155E9A; border-radius: 6px; font-size: 16px; outline: none; }
.search-hot-keywords { margin-top: 30px; }
.search-hot-keywords h3 { font-size: 16px; margin-bottom: 12px; }
.hot-keyword { display: inline-block; padding: 6px 14px; background: #f0f6ff; color: #155E9A; border-radius: 20px; margin: 0 8px 8px 0; font-size: 14px; transition: background 0.2s; }
.hot-keyword:hover { background: #d0e4ff; }
.search-summary { margin-bottom: 24px; padding: 12px 18px; background: #f0f6ff; border-radius: 6px; }
.search-group { margin-bottom: 30px; }
.search-group h3 { font-size: 20px; color: #155E9A; margin-bottom: 16px; padding-bottom: 8px; border-bottom: 2px solid #155E9A; }
.search-articles-list { display: flex; flex-direction: column; gap: 16px; }
.search-article-item { padding: 16px; border: 1px solid #e0e0e0; border-radius: 8px; }
.search-article-item h4 { font-size: 16px; margin-bottom: 4px; }
.search-article-item h4 a { color: #155E9A; }
.search-article-item h4 a:hover { color: #0C447C; }
.search-article-item .article-date { font-size: 13px; color: #999; }
.search-article-item p { font-size: 14px; color: #666; margin-top: 8px; }

/* --- 四宫格优势展示 --- */
.why-us-grid { display: flex; flex-direction: column; gap: 30px; }
.why-us-row { display: flex; gap: 20px; align-items: stretch; }
.why-us-item { display: flex; gap: 20px; flex: 1; }
.why-us-left { flex: 3; }
.why-us-right { flex: 3; }
.why-us-card {
  flex: 1; padding: 24px; background: #fff; border-radius: 8px;
  border: 1px solid #e0e0e0; transition: all 0.3s;
}
.why-us-card:hover { border-color: #155E9A; box-shadow: 0 4px 20px rgba(21,94,154,0.15); }
.why-us-card h4 { font-size: 18px; color: #155E9A; margin-bottom: 4px; }
.why-us-card span { font-size: 12px; color: #999; display: block; margin-bottom: 10px; }
.why-us-card p { font-size: 14px; color: #666; line-height: 1.7; }
.why-us-img { flex: 1; display: flex; align-items: center; justify-content: center; }
.why-us-img svg { width: 100%; max-width: 240px; height: auto; }
.why-us-btns {
  display: flex; flex-direction: column; gap: 10px; justify-content: center; flex-shrink: 0;
}
.why-us-btn {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px;
  border: 1px solid #e0e0e0; border-radius: 8px; cursor: pointer;
  transition: all 0.3s; background: #fff; width: 120px;
}
.why-us-btn:hover,
.why-us-btn.active { border-color: #155E9A; background: #f0f6ff; }
.why-us-btn .btn-icon { width: 32px; height: 32px; }
.why-us-btn .btn-icon svg { width: 100%; height: 100%; }
.why-us-btn span { font-size: 13px; color: #333; font-weight: 500; }

/* --- 客户案例 --- */
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  background: #fff; border-radius: 8px; overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08); transition: all 0.3s;
}
.case-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.12); }
.case-image { height: 220px; overflow: hidden; background: #ffffff; display: flex; align-items: center; justify-content: center; padding: 12px; }
.case-image img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; }
.case-image-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-size: 48px; color: #ccc; }
.case-info { padding: 16px 20px; }
.case-info h3 { font-size: 16px; color: #1a1a2e; margin-bottom: 8px; line-height: 1.4; }
.case-info p { font-size: 13px; color: #666; line-height: 1.6; margin-bottom: 12px; }
.case-more { font-size: 13px; color: #EF9F27; font-weight: 600; }
.case-more:hover { color: #155E9A; }

/* 案例卡片网格增强 */
.case-card-desc { font-size: 13px; color: #666; line-height: 1.6; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.case-card-footer { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid #f0f0f0; padding-top: 10px; }
.case-card-footer .case-date { font-size: 12px; color: #999; }

/* --- 案例列表页 --- */
.cases-list { display: flex; flex-direction: column; gap: 24px; }
.case-list-item { display: flex; gap: 24px; background: #fff; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,0.06); padding: 20px; }
.case-list-img { width: 280px; flex-shrink: 0; height: 200px; overflow: hidden; border-radius: 6px; background: #ffffff; display: flex; align-items: center; justify-content: center; padding: 10px; }
.case-list-img img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; }
.case-list-info { flex: 1; }
.case-list-info h2 { font-size: 20px; margin-bottom: 8px; }
.case-list-info h2 a { color: #1a1a2e; }
.case-list-info h2 a:hover { color: #155E9A; }
.case-list-info p { color: #666; line-height: 1.7; margin: 12px 0; }
.case-meta { display: flex; gap: 16px; font-size: 13px; color: #999; margin-bottom: 4px; }
.case-date { display: flex; align-items: center; gap: 4px; }

/* --- 行业解决方案页面 --- */
.solutions-intro {
  background: linear-gradient(135deg, #f0f5fa, #e8f1f8);
  border-radius: 12px;
  padding: 32px;
  margin-bottom: 40px;
  text-align: center;
}
.solutions-intro p {
  font-size: 16px;
  line-height: 2;
  color: #444;
  max-width: 900px;
  margin: 0 auto;
}
.solutions-intro strong {
  color: #155E9A;
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 28px;
  margin-bottom: 50px;
}

.solution-card {
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 3px 16px rgba(0,0,0,0.07);
  border: 1px solid #eef1f5;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.solution-card:hover {
  box-shadow: 0 8px 30px rgba(21,94,154,0.12);
  transform: translateY(-4px);
}

.solution-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  border-bottom: 2px solid #f5f7fa;
}
.solution-card-header h3 {
  font-size: 18px;
  margin: 0;
  color: #1a1a2e;
}

.solution-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #fff;
}
.solution-icon-steel    { background: linear-gradient(135deg, #607d8b, #455a64); }
.solution-icon-railway  { background: linear-gradient(135deg, #3f51b5, #303f9f); }
.solution-icon-wind     { background: linear-gradient(135deg, #00bcd4, #0097a7); }
.solution-icon-cnc      { background: linear-gradient(135deg, #7b1fa2, #4a148c); }
.solution-icon-power    { background: linear-gradient(135deg, #ffa726, #ef6c00); }
.solution-icon-food     { background: linear-gradient(135deg, #66bb6a, #2e7d32); }
.solution-icon-petro    { background: linear-gradient(135deg, #78909c, #546e7a); }
.solution-icon-cement   { background: linear-gradient(135deg, #8d6e63, #5d4037); }
.solution-icon-chemical { background: linear-gradient(135deg, #5c6bc0, #3949ab); }
.solution-icon-bearing  { background: linear-gradient(135deg, #ec407a, #c2185b); }

.solution-desc {
  padding: 16px 24px 8px;
  color: #555;
  font-size: 14px;
  line-height: 1.8;
}

.solution-products {
  padding: 8px 24px 12px;
}
.solution-products strong {
  font-size: 13px;
  color: #333;
}
.solution-product-tag {
  display: inline-block;
  background: #e3f0fa;
  color: #155E9A;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  margin: 4px 4px 0 0;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}
.solution-product-tag:hover {
  background: #155E9A;
  color: #fff;
}

.solution-cases {
  padding: 8px 24px 20px;
}
.solution-cases > strong {
  font-size: 13px;
  color: #333;
  display: block;
  margin-bottom: 8px;
}
.solution-case-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: #333;
  background: #f8fafd;
  margin-bottom: 6px;
  transition: background 0.2s;
}
.solution-case-link:hover {
  background: #e8f1f8;
}
.solution-case-link:hover .solution-case-title {
  color: #155E9A;
}
.solution-case-thumb {
  width: 48px;
  height: 36px;
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
  background: #fff;
  border: 1px solid #eef1f5;
}
.solution-case-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.solution-case-title {
  flex: 1;
  font-size: 13px;
  line-height: 1.5;
  transition: color 0.2s;
}
.solution-case-arrow {
  color: #EF9F27;
  font-size: 16px;
  flex-shrink: 0;
}

/* 服务流程 */
.solution-process {
  margin-top: 50px;
  padding-top: 40px;
  border-top: 1px solid #f0f0f0;
}
.section-title-center {
  text-align: center;
  font-size: 24px;
  color: #1a1a2e;
  margin-bottom: 32px;
}
.process-steps {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}
.process-step {
  text-align: center;
  width: 160px;
  padding: 24px 16px;
  border-radius: 12px;
  background: #f8fafd;
  border: 2px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.process-step:hover {
  border-color: #155E9A;
  background: #fff;
  box-shadow: 0 4px 20px rgba(21,94,154,0.1);
}
.process-step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #155E9A;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}
.process-step h4 {
  font-size: 16px;
  color: #1a1a2e;
  margin-bottom: 8px;
}
.process-step p {
  font-size: 13px;
  color: #777;
  line-height: 1.6;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .solutions-grid {
    grid-template-columns: 1fr;
  }
  .solutions-intro {
    padding: 20px;
  }
  .solutions-intro p {
    font-size: 14px;
    line-height: 1.8;
  }
  .process-steps {
    flex-direction: column;
    align-items: center;
  }
  .process-step {
    width: 100%;
    max-width: 280px;
  }
}
/* --- 案例详情 --- */
.case-detail { max-width: 800px; margin: 0 auto; }
.case-detail-img { margin-bottom: 24px; border-radius: 8px; overflow: hidden; }
.case-detail-img img { width: 100%; }
.case-detail-header { margin-bottom: 24px; }
.case-detail-header h1 { font-size: 26px; color: #1a1a2e; margin-bottom: 8px; }
.case-summary { font-size: 16px; color: #555; line-height: 1.7; padding: 16px; background: #f0f6ff; border-left: 4px solid #155E9A; border-radius: 0 8px 8px 0; margin-top: 16px; }
.case-detail-content { font-size: 15px; line-height: 1.8; color: #333; }
.case-detail-content p { margin-bottom: 16px; }
.case-related { margin-top: 40px; padding-top: 30px; border-top: 1px solid #e0e0e0; }
.case-related h3 { font-size: 20px; color: #155E9A; margin-bottom: 20px; }

/* --- CTA横幅 --- */
.cta-banner-section { padding: 40px 0; }
.cta-banner {
  background: linear-gradient(135deg, #155E9A, #0C447C);
  border-radius: 12px; padding: 36px 48px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 30px; flex-wrap: wrap;
}
.cta-banner-content h2 { font-size: 24px; color: #fff; margin-bottom: 8px; }
.cta-banner-content p { font-size: 15px; color: rgba(255,255,255,0.85); }
.cta-banner-actions { display: flex; align-items: center; gap: 20px; flex-shrink: 0; }
.cta-phone { font-size: 26px; font-weight: 700; color: #EF9F27; }

/* --- FAQ页面 --- */
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.faq-item {
  padding: 20px 24px; background: #f8faff; border-radius: 8px;
  border: 1px solid #e0e8f0; transition: all 0.2s;
}
.faq-item:hover { border-color: #155E9A; }
.faq-q { font-size: 15px; color: #155E9A; margin-bottom: 8px; font-weight: 600; }
.faq-a { font-size: 14px; color: #666; line-height: 1.6; margin-bottom: 10px; }
.faq-more { font-size: 13px; color: #EF9F27; }
.faq-more:hover { color: #155E9A; }

.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 20px; }
.faq-list-item { padding: 24px; background: #fff; border: 1px solid #e0e0e0; border-radius: 8px; }
.faq-q-full { font-size: 18px; color: #155E9A; margin-bottom: 12px; }
.faq-a-full { font-size: 15px; color: #333; line-height: 1.8; }
.faq-a-full p { margin-bottom: 12px; }

/* --- 荣誉资质 --- */
.honors-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.honor-card {
  text-align: center; padding: 30px 20px; background: #fff;
  border: 1px solid #e0e0e0; border-radius: 8px; transition: all 0.3s;
}
.honor-card:hover { border-color: #155E9A; box-shadow: 0 4px 16px rgba(21,94,154,0.1); }
.honor-icon { font-size: 40px; margin-bottom: 12px; }
.honor-card h3 { font-size: 16px; color: #1a1a2e; margin-bottom: 8px; }
.honor-card p { font-size: 13px; color: #888; }
.honors-content { max-width: 800px; margin: 0 auto; font-size: 15px; line-height: 1.8; }
.honors-content img { max-width: 100%; border-radius: 8px; margin: 16px 0; }

/* --- 页脚优化 --- */
.footer-about .footer-desc { color: #aaa; line-height: 1.6; margin: 8px 0 16px; font-size: 13px; }
.footer-qr { text-align: center; }
.qr-codes { display: flex; gap: 16px; justify-content: center; margin-top: 12px; }
.qr-item { text-align: center; }
.qr-placeholder {
  width: 80px; height: 80px; background: rgba(255,255,255,0.1);
  border-radius: 8px; display: flex; align-items: center;
  justify-content: center; font-size: 32px; margin-bottom: 6px;
}
.qr-item span { font-size: 12px; color: #aaa; }
.footer-keywords { color: #777; font-size: 12px; margin-top: 6px; }

/* --- 主footer样式增强 --- */
.main-footer {
  background: #1a1a2e; color: #ccc; padding: 50px 0 0;
}
.main-footer h3 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.main-footer p { font-size: 14px; line-height: 1.8; }
.main-footer a { color: #aaa; transition: color 0.2s; }
.main-footer a:hover { color: #EF9F27; }
.main-footer ul li { margin-bottom: 6px; }
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; padding-bottom: 30px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0; text-align: center; font-size: 13px; color: #777;
}

/* --- 移动端适配 --- */
@media (max-width: 768px) {
  .main-nav ul { flex-wrap: wrap; justify-content: flex-start; }
  .main-nav ul li a { padding: 10px 14px; font-size: 14px; }
  .search-bar .container { flex-direction: column; align-items: flex-start; gap: 10px; }
  .search-input { width: 100%; }
  .search-form { width: 100%; }
  .why-us-row { flex-direction: column; }
  .why-us-item { flex-direction: column; }
  .why-us-btns { flex-direction: row; flex-wrap: wrap; }
  .why-us-btn { width: auto; flex: 1; min-width: 100px; }
  .why-us-btn span { font-size: 11px; }
  .why-us-img { display: none; }
  .cases-grid { grid-template-columns: 1fr; }
  .case-list-item { flex-direction: column; }
  .case-list-img { width: 100%; height: 180px; }
  .faq-grid { grid-template-columns: 1fr; }
  .honors-grid { grid-template-columns: 1fr 1fr; }
  .cta-banner { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .header-contact { display: none; }
  .qr-codes { justify-content: flex-start; }
  .hot-keyword { font-size: 12px; padding: 4px 10px; }
}

@media (max-width: 480px) {
  .main-nav ul li a { padding: 8px 10px; font-size: 13px; }
  .honors-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-banner { flex-direction: column; text-align: center; }
  .cta-banner-actions { flex-direction: column; }
}

/* ============================================
   32. Mobile Fix - 移动端综合修复
   ============================================ */

/* --- 手机菜单按钮（桌面隐藏，手机显示） --- */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  font-size: 24px;
  color: #155E9A;
  line-height: 1;
  flex-shrink: 0;
  border-radius: 6px;
  transition: background 0.2s;
}
.mobile-toggle:hover {
  background-color: #e6f1fb;
}

/* --- 返回顶部按钮 --- */
.back-to-top {
  position: fixed;
  bottom: 90px;
  right: 24px;
  width: 44px;
  height: 44px;
  background: #155E9A;
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s, background 0.2s;
  z-index: 998;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
}
.back-to-top:hover {
  background: #0C447C;
}

/* --- 浮动联系客服 --- */
.contact-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
}

.contact-widget-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #155E9A, #0C447C);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(21, 94, 154, 0.45);
  transition: all 0.3s ease;
  position: relative;
}

.contact-widget-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(21, 94, 154, 0.55);
}

.contact-widget-btn.active {
  background: linear-gradient(135deg, #0C447C, #0a3a6a);
}

.contact-widget-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 20px;
  height: 20px;
  background: #EF9F27;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #fff;
  animation: badgeBounce 1.5s ease infinite;
}

@keyframes badgeBounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

.contact-widget-btn:not(.active) {
  animation: widgetPulse 2.5s ease infinite;
}

@keyframes widgetPulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(21, 94, 154, 0.45), 0 0 0 0 rgba(21, 94, 154, 0.35); }
  50% { box-shadow: 0 4px 20px rgba(21, 94, 154, 0.45), 0 0 0 14px rgba(21, 94, 154, 0); }
}

.contact-panel {
  position: absolute;
  bottom: 68px;
  right: 0;
  width: 360px;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.96);
  transform-origin: bottom right;
  transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-panel.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.contact-panel-header {
  background: linear-gradient(135deg, #0C447C, #155E9A);
  color: #fff;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.contact-panel-header h3 {
  color: #fff;
  font-size: 16px;
  margin: 0;
  font-weight: 600;
}

.contact-panel-close {
  background: none;
  border: none;
  color: #fff;
  font-size: 26px;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.2s, transform 0.2s;
}

.contact-panel-close:hover {
  opacity: 1;
  transform: rotate(90deg);
}

.contact-panel-body {
  padding: 14px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  text-decoration: none;
  color: #333;
  transition: background 0.2s;
  margin-bottom: 6px;
}

.contact-item:hover {
  background: #f0f6ff;
}

.contact-item:last-child {
  margin-bottom: 0;
}

.contact-icon {
  font-size: 22px;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f0f6ff;
  border-radius: 50%;
}

.contact-text strong {
  display: block;
  font-size: 14px;
  color: #1a1a2e;
  margin-bottom: 2px;
  font-weight: 600;
}

.contact-text span {
  font-size: 13px;
  color: #888;
}

/* WeChat QR */
.contact-wechat {
  flex-direction: column;
  align-items: center;
  text-align: center;
  border-bottom: 1px solid #eef1f5;
  padding: 8px 12px 14px;
  margin-bottom: 10px;
}

.contact-wechat-qr {
  width: 220px;
  height: 220px;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 10px;
  background: #f4f6f9;
  border: 2px solid #eef1f5;
}

.contact-wechat-qr img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-placeholder-img {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #e8ecf1, #d8dee6);
}

.qr-placeholder-img svg {
  margin-bottom: 4px;
}

.qr-placeholder-img p {
  font-size: 12px;
  color: #666;
  margin: 2px 0 0;
  font-weight: 600;
}

.qr-placeholder-img small {
  font-size: 10px;
  color: #999;
  margin-top: 2px;
}

.contact-wechat-text {
  font-size: 13px;
  color: #666;
  line-height: 1.6;
  margin: 0;
}

/* --- 表格水平滚动（防止溢出） --- */
.specs-html {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.specs-html table {
  min-width: 480px;
}
.page-article table {
  min-width: 480px;
}
.news-article-content table {
  min-width: 480px;
}

/* --- 手机端修复（覆盖前面冲突的媒体查询） --- */
@media (max-width: 768px) {
  /* 手机菜单按钮显示 */
  .mobile-toggle {
    display: flex;
  }

  /* 顶栏优化 */
  .top-bar {
    font-size: 12px;
    padding: 4px 0;
  }
  .top-bar .container {
    justify-content: center;
    text-align: center;
  }
  .top-welcome {
    display: none;
  }

  /* 导航栏：手机端隐藏，点击按钮展开 */
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: #155E9A;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    padding: 0;
    z-index: 1001;
    max-height: 70vh;
    overflow-y: auto;
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav .container {
    width: 100%;
    padding: 0;
  }
  .main-nav ul {
    flex-direction: column;
    flex-wrap: nowrap;
  }
  .main-nav ul li {
    width: 100%;
  }
  .main-nav ul li a {
    display: block;
    padding: 14px 20px;
    color: #fff !important;
    font-size: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 0;
    white-space: nowrap;
  }
  .main-nav ul li a::after {
    display: none;
  }
  .main-nav ul li a:hover,
  .main-nav ul li a.active {
    background-color: #0C447C;
    color: #fff !important;
  }

  /* 顶栏链接 */
  .top-links {
    gap: 8px;
  }
  .top-links a {
    font-size: 12px;
  }

  /* header-contact 在手机端隐藏 */
  .header-contact {
    display: none;
  }

  /* 主头部布局 */
  .main-header .container {
    padding: 10px 0;
    gap: 8px;
  }
  .logo .logo-icon {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }
  .logo .logo-name {
    font-size: 15px;
  }
  .logo-tagline {
    font-size: 10px;
  }

  /* 搜索栏 */
  .search-bar .container {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .search-hot {
    font-size: 12px;
  }
  .search-hot a {
    padding: 2px 4px;
    font-size: 12px;
  }
  .search-form {
    width: 100%;
  }
  .search-input {
    width: 100%;
    flex: 1;
    padding: 8px 12px;
    font-size: 14px;
  }
  .search-btn {
    padding: 8px 14px;
    font-size: 13px;
    white-space: nowrap;
  }

  /* Hero 区域 */
  .hero {
    min-height: 300px;
    padding: 32px 0;
  }
  .hero-content h1 {
    font-size: 24px;
    line-height: 1.3;
  }
  .hero-content p {
    font-size: 14px;
  }
  .hero-btns {
    flex-direction: column;
    width: 100%;
    padding: 0 12px;
    gap: 10px;
  }
  .hero-btns .btn {
    width: 100%;
  }

  /* 区块间距缩减 */
  .section {
    padding: 40px 0;
  }
  .section-header {
    margin-bottom: 24px;
  }
  .section-header h2 {
    font-size: 22px;
  }
  .section-header p {
    font-size: 14px;
  }

  /* 产品/分类网格：手机2列 */
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .product-image {
    height: 140px;
  }
  .category-card-with-image .category-image {
    height: 130px;
  }
  .category-card-with-image .category-content {
    padding: 10px 12px 12px;
  }
  .category-card-with-image .category-content h3 {
    font-size: 14px;
    margin-bottom: 4px;
  }
  .category-card-with-image .category-content p {
    font-size: 12px;
    margin-bottom: 6px;
    -webkit-line-clamp: 1;
  }

  /* 产品信息 */
  .product-info {
    padding: 10px 12px;
  }
  .product-info h3 {
    font-size: 13px;
    -webkit-line-clamp: 2;
  }
  .product-desc {
    font-size: 12px;
    -webkit-line-clamp: 1;
  }
  .product-category {
    font-size: 11px;
  }
  .product-more {
    font-size: 12px;
  }

  /* 产品详情布局 */
  .product-detail-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .product-detail-title {
    font-size: 20px;
  }
  .product-detail-actions {
    flex-direction: column;
    gap: 10px;
  }
  .product-detail-actions .btn {
    width: 100%;
  }
  .product-section-title {
    font-size: 18px;
  }
  .specs-table th,
  .specs-table td {
    padding: 8px 10px;
    font-size: 13px;
  }
  .specs-table th {
    width: 100px;
    min-width: 100px;
  }

  /* 侧边栏 */
  .sidebar,
  .news-sidebar,
  .page-sidebar {
    position: static;
    max-height: none;
  }
  .sidebar-widget h3 .sidebar-toggle {
    display: inline-block;
  }
  .sidebar-widget.collapsed .category-list,
  .sidebar-widget.collapsed .sidebar-contact-cta {
    display: none;
  }
  .sidebar-widget h3 {
    cursor: pointer;
  }

  /* 优势区块 */
  .why-us-grid {
    gap: 16px;
  }
  .why-us-row {
    flex-direction: column;
    gap: 16px;
  }
  .why-us-item {
    flex-direction: column;
    gap: 12px;
  }
  .why-us-card {
    padding: 16px;
  }
  .why-us-card h4 {
    font-size: 16px;
  }
  .why-us-card p {
    font-size: 13px;
  }
  .why-us-img {
    display: none;
  }
  .why-us-btns {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }
  .why-us-btn {
    width: auto;
    flex: 1;
    min-width: 80px;
    padding: 8px 10px;
  }
  .why-us-btn span {
    font-size: 11px;
  }

  /* 应用标签 */
  .app-tag {
    font-size: 12px;
    padding: 6px 12px;
  }

  /* CTA 横幅 */
  .cta-banner {
    flex-direction: column;
    text-align: center;
    padding: 24px 20px;
    gap: 16px;
  }
  .cta-banner-content h2 {
    font-size: 20px;
  }
  .cta-banner-actions {
    flex-direction: column;
    gap: 12px;
  }
  .cta-phone {
    font-size: 22px;
  }

  /* CTA Section */
  .cta-section {
    padding: 36px 0;
  }
  .cta-section h2 {
    font-size: 20px;
  }
  .cta-section p {
    font-size: 14px;
  }

  /* 新闻/案例 */
  .news-grid {
    grid-template-columns: 1fr;
  }
  .cases-grid {
    grid-template-columns: 1fr;
  }
  .case-list-item {
    flex-direction: column;
  }
  .case-list-img {
    width: 100%;
    height: 160px;
  }

  /* FAQ */
  .faq-grid {
    grid-template-columns: 1fr;
  }

  /* 荣誉 */
  .honors-grid {
    grid-template-columns: 1fr 1fr;
  }

  /* 页脚 */
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }

  /* 分页 */
  .pagination a {
    min-width: 36px;
    height: 36px;
    padding: 6px 10px;
    font-size: 13px;
  }

  /* 按钮缩小 */
  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }
  .btn-lg {
    padding: 12px 24px;
    font-size: 14px;
  }

  /* 联系页面 */
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .contact-info-cards {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .contact-form-wrapper {
    padding: 20px 16px;
  }

  /* 页面 banner */
  .page-banner {
    padding: 50px 0 24px;
  }
  .page-banner h1, .page-banner h2 {
    font-size: 22px;
  }
  .page-banner p {
    font-size: 14px;
  }
}

/* --- 超小屏幕（≤480px） --- */
@media (max-width: 480px) {
  .container {
    padding: 0 12px;
  }

  /* 产品/分类：超小屏1列 */
  .products-grid {
    grid-template-columns: 1fr;
  }
  .categories-grid {
    grid-template-columns: 1fr;
  }

  /* 顶栏 */
  .top-bar .container {
    flex-direction: column;
    gap: 2px;
  }
  .top-links {
    gap: 6px;
  }
  .top-links a {
    font-size: 11px;
  }

  /* Logo */
  .logo .logo-icon {
    width: 32px;
    height: 32px;
    font-size: 12px;
  }
  .logo h1 {
    font-size: 13px;
  }
  .logo-tagline {
    display: none;
  }

  /* Hero */
  .hero-content h1 {
    font-size: 20px;
  }
  .hero-content p {
    font-size: 13px;
  }

  /* 标题 */
  .section-header h2 {
    font-size: 18px;
  }

  /* 荣誉单列 */
  .honors-grid {
    grid-template-columns: 1fr;
  }

  /* 页脚单列 */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* 联系信息单列 */
  .contact-info-cards {
    grid-template-columns: 1fr;
  }

  /* 分类卡片图片 */
  .category-card-with-image .category-image {
    height: 110px;
  }

  /* CTA 电话号码 */
  .cta-phone {
    font-size: 18px;
  }

  /* 返回顶部按钮缩小 + 客服按钮适配 */
  .back-to-top {
    width: 40px;
    height: 40px;
    bottom: 76px;
    right: 16px;
    font-size: 18px;
  }
  .contact-widget {
    bottom: 16px;
    right: 16px;
  }
  .contact-widget-btn {
    width: 48px;
    height: 48px;
  }
  .contact-widget-btn svg {
    width: 22px;
    height: 22px;
  }
  .contact-panel {
    width: calc(100vw - 24px);
    max-width: 340px;
    right: -4px;
    bottom: 60px;
  }
  .contact-wechat-qr {
    width: 200px;
    height: 200px;
  }
}

/* --- 打印样式 --- */
@media print {
  .main-header,
  .main-footer,
  .search-bar,
  .breadcrumb,
  .hero-btns,
  .cta-section,
  .cta-banner-section,
  .mobile-toggle,
  .sidebar,
  .news-sidebar,
  .page-sidebar,
  .news-article-share,
  .news-article-footer .btn,
  .related-articles,
  .section-more,
  .back-to-top,
  .contact-widget {
    display: none !important;
  }

  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }

  .section {
    padding: 20px 0;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  .product-card,
  .news-card {
    box-shadow: none;
    border: 1px solid #ccc;
    page-break-inside: avoid;
  }

  .specs-table {
    page-break-inside: avoid;
  }

  .specs-table th {
    background-color: #f0f0f0 !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
}

/* ==================== 分类页增强（2026-10 优化） ==================== */
.category-intro {
  margin: 0 0 32px;
  padding: 20px 24px;
  background: #f7fafd;
  border-left: 3px solid #155E9A;
  border-radius: 0 6px 6px 0;
  color: #444;
  line-height: 1.9;
  font-size: 15px;
}
.category-intro p { margin: 0 0 12px; }
.category-intro p:last-child { margin-bottom: 0; }
.category-intro h3 {
  font-size: 17px;
  color: #0C447C;
  margin: 20px 0 10px;
}
.category-intro ul { margin: 0; padding-left: 20px; }
.category-intro li { margin-bottom: 6px; }
.category-article-list { list-style: none; margin: 0; padding: 0; }
.category-article-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed #e8e8e8;
}
.category-article-list a {
  color: #155E9A;
  font-size: 15px;
  text-decoration: none;
  flex: 1;
}
.category-article-list a:hover { text-decoration: underline; color: #0C447C; }
.category-article-list .cat-article-date {
  color: #999;
  font-size: 13px;
  white-space: nowrap;
}
@media (max-width: 768px) {
  .category-intro { padding: 16px; font-size: 14px; }
  .category-article-list li { flex-direction: column; gap: 3px; }
}

/* ============================================
   30. 行业应用 / 问答库 / 型号库 / 计算器
   （2026-10 基于竞品页面结构新增，主色 #155E9A / 强调 #EF9F27）
   ============================================ */

/* ---- 行业列表 ---- */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 28px 0 10px;
}
.industry-card {
  display: block;
  background: #fff;
  border: 1px solid #e8ecf1;
  border-left: 4px solid #155E9A;
  border-radius: 6px;
  padding: 20px 20px 18px;
  text-decoration: none;
  transition: box-shadow .2s, transform .2s;
}
.industry-card:hover {
  box-shadow: 0 8px 22px rgba(21, 94, 154, .12);
  transform: translateY(-2px);
}
.industry-card h2 {
  font-size: 17px;
  color: #0C447C;
  margin-bottom: 8px;
}
.industry-card-sub {
  font-size: 13.5px;
  color: #666;
  line-height: 1.65;
  margin-bottom: 12px;
}
.industry-card-more {
  font-size: 13px;
  color: #EF9F27;
  font-weight: 600;
}

/* ---- 行业详情 ---- */
.industry-intro {
  font-size: 15.5px;
  line-height: 1.9;
  color: #333;
  margin-bottom: 30px;
  padding: 22px 24px;
  background: #f7fafd;
  border-radius: 6px;
  border-left: 3px solid #155E9A;
}
.industry-intro p + p { margin-top: 14px; }
.industry-main h2 {
  font-size: 21px;
  color: #0C447C;
  margin: 38px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid #eef2f7;
}
.industry-main h3 {
  font-size: 16.5px;
  color: #155E9A;
  margin: 22px 0 10px;
}
.industry-main p { line-height: 1.9; margin-bottom: 12px; }

.pain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.pain-item {
  background: #fffaf2;
  border: 1px solid #f6e3c4;
  border-radius: 6px;
  padding: 16px 18px;
}
.pain-item h3 {
  font-size: 15px;
  color: #a96b13;
  margin: 0 0 8px;
}
.pain-item p {
  font-size: 13.5px;
  color: #6b5b45;
  line-height: 1.75;
  margin: 0;
}

.table-wrap { overflow-x: auto; margin: 14px 0 10px; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  background: #fff;
}
.data-table th,
.data-table td {
  border: 1px solid #e6ebf1;
  padding: 9px 12px;
  text-align: left;
  white-space: nowrap;
}
.data-table th {
  background: #f2f6fa;
  color: #0C447C;
  font-weight: 600;
}
.data-table tbody tr:nth-child(even) { background: #fafcfe; }
.table-caption { font-size: 13px; color: #888; margin: 0 0 6px; }
.table-tip { font-size: 13px; color: #888; margin: 8px 0 4px; }

.process-block {
  border-left: 3px solid #EF9F27;
  padding: 2px 0 2px 16px;
  margin-bottom: 22px;
}
.process-block h3 { margin-top: 0; }

.industry-products {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 14px 0 8px;
}
.industry-product {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #e8ecf1;
  border-radius: 6px;
  overflow: hidden;
  text-decoration: none;
  transition: box-shadow .2s;
}
.industry-product:hover { box-shadow: 0 6px 18px rgba(21, 94, 154, .12); }
.industry-product img {
  width: 100%;
  height: 120px;
  object-fit: contain;
  background: #f7f9fb;
  padding: 8px;
}
.industry-product-name {
  font-size: 13.5px;
  color: #0C447C;
  padding: 10px 12px 4px;
  font-weight: 600;
}
.industry-product-hl {
  font-size: 12px;
  color: #999;
  padding: 0 12px 12px;
}

.industry-article-list { list-style: none; margin: 10px 0 0; }
.industry-article-list li {
  padding: 9px 0 9px 16px;
  border-bottom: 1px dashed #eef2f7;
  position: relative;
}
.industry-article-list li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: #EF9F27;
  font-weight: 700;
}
.industry-article-list a { color: #333; text-decoration: none; font-size: 14.5px; }
.industry-article-list a:hover { color: #155E9A; }

.related-block {
  margin: 34px 0 10px;
  padding: 20px 22px;
  background: #f7fafd;
  border-radius: 6px;
}
.related-block h2 {
  font-size: 17px;
  color: #0C447C;
  margin: 0 0 12px;
  border: none;
  padding: 0;
}
.related-qa-list { list-style: none; }
.related-qa-list li { padding: 7px 0 7px 14px; position: relative; }
.related-qa-list li::before {
  content: "·";
  position: absolute; left: 2px; top: 5px;
  color: #EF9F27; font-size: 20px; line-height: 1;
}
.related-qa-list a { color: #333; text-decoration: none; font-size: 14px; }
.related-qa-list a:hover { color: #155E9A; }
.related-more { margin-top: 12px; font-size: 13.5px; }
.related-more a { color: #155E9A; font-weight: 600; }

.sibling-links { display: flex; flex-wrap: wrap; gap: 8px; }
.sibling-links a {
  font-size: 13px;
  color: #155E9A;
  background: #fff;
  border: 1px solid #d8e3ee;
  border-radius: 20px;
  padding: 6px 14px;
  text-decoration: none;
}
.sibling-links a:hover { background: #155E9A; color: #fff; border-color: #155E9A; }

/* ---- 问答库 ---- */
.qa-cat-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 10px;
  padding: 14px 16px;
  background: #f7fafd;
  border-radius: 6px;
}
.qa-cat-nav a {
  font-size: 13.5px;
  color: #155E9A;
  text-decoration: none;
  padding: 4px 12px;
  background: #fff;
  border: 1px solid #dbe6f0;
  border-radius: 16px;
}
.qa-cat-nav a:hover { background: #155E9A; color: #fff; }
.qa-cat-block { margin-top: 30px; }
.qa-cat-block h2 {
  font-size: 19px;
  color: #0C447C;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid #eef2f7;
}
.qa-list { list-style: none; }
.qa-list li {
  padding: 12px 0 12px 16px;
  border-bottom: 1px dashed #eef2f7;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.qa-list li::before {
  content: "Q";
  position: absolute;
  left: 0; top: 12px;
  color: #EF9F27;
  font-weight: 700;
  font-size: 13px;
}
.qa-list a { color: #1a1a2e; text-decoration: none; font-size: 15px; font-weight: 500; }
.qa-list a:hover { color: #155E9A; }
.qa-list-scene { font-size: 12.5px; color: #999; }

.page-banner-qa h1 { line-height: 1.5; }
.qa-meta { font-size: 13.5px; opacity: .9; }
.qa-meta a { color: #EF9F27; }

.qa-quote {
  background: #f7fafd;
  border-left: 3px solid #b9c9d8;
  border-radius: 0 6px 6px 0;
  padding: 16px 20px;
  margin-bottom: 22px;
}
.qa-quote-label,
.qa-answer-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .5px;
  padding: 2px 10px;
  border-radius: 3px;
  margin-bottom: 10px;
}
.qa-quote-label { background: #e6edf5; color: #5a6b7c; }
.qa-answer-label { background: #155E9A; color: #fff; }
.qa-quote p { font-size: 14.5px; color: #55606b; line-height: 1.85; margin: 0; }
.qa-answer { margin-bottom: 26px; }
.qa-answer p { font-size: 15.5px; line-height: 1.95; margin-bottom: 13px; }
.qa-answer strong { color: #0C447C; }

.qa-cta-inline {
  margin-top: 30px;
  padding: 20px 22px;
  background: #fffaf2;
  border: 1px solid #f6e3c4;
  border-radius: 6px;
}
.qa-cta-inline p { font-size: 14px; color: #6b5b45; margin-bottom: 14px; line-height: 1.8; }

/* ---- 型号库 ---- */
.model-lookup {
  background: #f7fafd;
  border: 1px solid #e2ecf5;
  border-radius: 8px;
  padding: 20px 22px;
  margin: 26px 0 24px;
}
.model-lookup-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.model-lookup-row label { font-size: 14px; font-weight: 600; color: #0C447C; }
.model-lookup-row input[type="number"] {
  width: 130px;
  padding: 9px 12px;
  border: 1px solid #cfdae6;
  border-radius: 4px;
  font-size: 14px;
}
.ml-unit { font-size: 13px; color: #888; }
.model-lookup-tip { margin: 14px 0 0; font-size: 13.5px; color: #666; }
.model-lookup-tip input[type="text"] {
  width: 160px;
  padding: 6px 10px;
  border: 1px solid #cfdae6;
  border-radius: 4px;
  font-size: 13.5px;
  margin-left: 4px;
}
.model-lookup-result { margin: 12px 0 0; font-size: 13.5px; color: #155E9A; font-weight: 600; }
.model-param-cell { white-space: normal !important; color: #666; font-size: 12.5px; }
.model-cat { margin-top: 40px; }
.model-cat > h2 {
  font-size: 20px;
  color: #0C447C;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid #155E9A;
}
.model-block {
  margin-bottom: 26px;
  background: #fff;
  border: 1px solid #eef2f7;
  border-radius: 6px;
  padding: 16px 18px;
}
.model-block h3 { font-size: 15.5px; margin: 0 0 10px; }
.model-block h3 a { color: #155E9A; text-decoration: none; }
.model-notes { margin: 8px 0 0; font-size: 12.5px; color: #888; }
.model-notes span { display: inline-block; margin-right: 16px; }

/* ---- 计算器 ---- */
.calc-card {
  background: #fff;
  border: 1px solid #e2ecf5;
  border-radius: 8px;
  padding: 24px 26px;
  margin: 26px 0;
  box-shadow: 0 2px 10px rgba(21, 94, 154, .05);
}
.calc-card h2 {
  font-size: 19px;
  color: #0C447C;
  margin-bottom: 6px;
}
.calc-desc { font-size: 13px; color: #999; margin-bottom: 18px; }
.calc-mode { display: flex; gap: 20px; margin-bottom: 16px; }
.calc-mode label {
  font-size: 13.5px;
  color: #444;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}
.calc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 16px;
}
.calc-grid[hidden] { display: none; }
.calc-grid label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: #666;
}
.calc-grid input,
.calc-grid select {
  padding: 9px 10px;
  border: 1px solid #cfdae6;
  border-radius: 4px;
  font-size: 14px;
  color: #222;
  background: #fff;
}
.calc-out { margin-top: 20px; }
.calc-res {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.calc-res-item {
  background: #f7fafd;
  border-radius: 6px;
  padding: 14px 16px;
}
.calc-res-item span { display: block; font-size: 12.5px; color: #7b8794; margin-bottom: 6px; }
.calc-res-item strong { font-size: 19px; color: #0C447C; font-weight: 700; }
.calc-res-main { background: #155E9A; }
.calc-res-main span { color: rgba(255, 255, 255, .78); }
.calc-res-main strong { color: #fff; }
.calc-res-single { font-size: 15px; color: #155E9A; font-weight: 600; }
.calc-warn {
  list-style: none;
  margin-top: 14px;
  padding: 14px 16px;
  background: #fff5f5;
  border-left: 3px solid #d9534f;
  border-radius: 0 6px 6px 0;
}
.calc-warn li { font-size: 13.5px; color: #a94442; line-height: 1.8; }
.calc-ok {
  margin-top: 14px;
  font-size: 13.5px;
  color: #1f7a45;
  background: #f2fbf6;
  padding: 12px 16px;
  border-left: 3px solid #1f7a45;
  border-radius: 0 6px 6px 0;
}
.calc-note { margin-top: 14px; font-size: 12.5px; color: #999; line-height: 1.8; }
.calc-err { font-size: 14px; color: #d9534f; }

.btn-ghost {
  background: transparent;
  border: 1px solid #cfdae6;
  color: #666;
  padding: 9px 18px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
}
.btn-ghost:hover { border-color: #155E9A; color: #155E9A; }

/* ---- 页脚行业内链 ---- */
.footer-industry {
  padding: 22px 0 18px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  margin-bottom: 26px;
}
.footer-industry h3 {
  font-size: 15px;
  color: #fff;
  margin-bottom: 12px;
}
.footer-industry-links { display: flex; flex-wrap: wrap; gap: 8px 6px; }
.footer-industry-links a {
  font-size: 13px;
  color: rgba(255, 255, 255, .72);
  text-decoration: none;
  padding: 3px 10px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 14px;
}
.footer-industry-links a:hover {
  color: #fff;
  border-color: #EF9F27;
  background: rgba(239, 159, 39, .15);
}

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-products { grid-template-columns: repeat(3, 1fr); }
  .calc-grid { grid-template-columns: repeat(2, 1fr); }
  .calc-res { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .industry-grid,
  .pain-grid,
  .cal-res { grid-template-columns: 1fr; }
  .industry-products { grid-template-columns: repeat(2, 1fr); }
  .calc-card { padding: 18px 16px; }
  .calc-grid { grid-template-columns: 1fr; }
  .model-lookup-row { gap: 8px; }
  .industry-main h2 { font-size: 18px; }
}

/* 首页服务领域：可点击的行业标签 */
a.app-tag { text-decoration: none; cursor: pointer; }

/* ============================================
   31. 全部技术资料归档页 /news/all
   ============================================ */
.archive-intro {
  font-size: 14.5px;
  line-height: 1.95;
  color: #444;
  background: #f7fafd;
  border-left: 3px solid #155E9A;
  border-radius: 0 6px 6px 0;
  padding: 16px 20px;
  margin-bottom: 24px;
}
.archive-intro a { color: #155E9A; text-decoration: underline; }
.archive-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 14px 16px;
  background: #f7fafd;
  border-radius: 6px;
  margin-bottom: 8px;
}
.archive-nav a {
  font-size: 13.5px;
  color: #155E9A;
  background: #fff;
  border: 1px solid #dbe6f0;
  border-radius: 16px;
  padding: 5px 14px;
  text-decoration: none;
}
.archive-nav a:hover { background: #155E9A; color: #fff; border-color: #155E9A; }
.archive-group { margin-top: 34px; }
.archive-group > h2 {
  font-size: 19px;
  color: #0C447C;
  padding-bottom: 10px;
  margin-bottom: 6px;
  border-bottom: 2px solid #155E9A;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.archive-count { font-size: 12.5px; color: #9aa7b4; font-weight: 400; }
.archive-list { list-style: none; }
.archive-list li {
  padding: 13px 0 12px 16px;
  border-bottom: 1px dashed #eef2f7;
  position: relative;
}
.archive-list li::before {
  content: "›";
  position: absolute;
  left: 0; top: 11px;
  color: #EF9F27;
  font-weight: 700;
}
.archive-list a {
  font-size: 15px;
  color: #1a1a2e;
  text-decoration: none;
  font-weight: 500;
  line-height: 1.6;
}
.archive-list a:hover { color: #155E9A; }
.archive-date {
  font-size: 12px;
  color: #a8b3bf;
  margin-left: 10px;
  white-space: nowrap;
}
.archive-sum {
  font-size: 13px;
  color: #7b8794;
  line-height: 1.7;
  margin: 5px 0 0;
}
.archive-foot {
  margin-top: 34px;
  padding: 18px 20px;
  background: #fffaf2;
  border: 1px solid #f6e3c4;
  border-radius: 6px;
  font-size: 14px;
  color: #6b5b45;
  line-height: 1.8;
}
.archive-foot a { color: #a96b13; font-weight: 600; }
.news-all-entry {
  text-align: center;
  margin: 26px 0 6px;
}
.news-all-entry a {
  display: inline-block;
  font-size: 14.5px;
  color: #155E9A;
  border: 1px solid #155E9A;
  border-radius: 4px;
  padding: 10px 26px;
  text-decoration: none;
}
.news-all-entry a:hover { background: #155E9A; color: #fff; }
@media (max-width: 768px) {
  .archive-list a { font-size: 14.5px; }
  .archive-date { display: block; margin: 4px 0 0; }
}