:root {
  --primary-dark: #15127b;
  --primary-deeper: #0f0d58;
  --black: #000000;
  --gray-dark: #212529;
  --white: #ffffff;
  --color-gray: #cccccc;
  --color-gray-600: #666666;
  --color-gray-400: #999999;
  --color-gray-300: #8f8f8f;
  --highlight-gold: #FFD700;
}

* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  font-size: 16px;
  line-height: 1.5;
  font-style: normal;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin-bottom: 0;
}

.sptb {
  padding: 90px 0;
}

.spt {
  padding-top: 90px;
}

.spb {
  padding-bottom: 90px;
}

.section-bg {
  background-color: #f8f9fa;
}


/* 顶部客服栏 */
.top-contact-bar {
  background-color: var(--primary-deeper);
  color: var(--white);
  padding: 12px 0;
  font-size: 1rem;
}

.top-contact-bar .contact-info a {
  color: var(--white);
  text-decoration: none;
}

.top-contact-bar .contact-info a:hover {
  opacity: 0.8;
  /* text-decoration: underline; */
}

.top-contact-bar .contact-info i {
  margin-right: 6px;
  color: #ffd966;
}

.lang-switch a {
  color: var(--white);
  text-decoration: none;
  padding: 0 6px;
  border-radius: 4px;
}

.lang-switch a:hover {
  background: rgba(255, 255, 255, 0.15);
}

.lang-switch .divider {
  color: rgba(255, 255, 255, 0.5);
  margin: 0 4px;
}

/* 导航栏 */
.main-nav {
  background-color: var(--white);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  padding: 12px 0;
  border-bottom: 1px solid rgba(21, 18, 123, 0.08);
}

/* PC端导航 - 水平排列 */
.navbar-nav {
  flex-direction: row !important;
}

.navbar-nav .nav-link {
  color: var(--gray-dark);
  font-size: 18px;
  font-weight: 500;
  padding: 6px 0;
  margin-right: 25px;
  border-bottom: 2px solid transparent;
  transition: 0.2s;
  position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--primary-dark);
}

/* .navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  position: absolute;
  bottom: 0;
  left: 0;
  content: "";
  width: 100%;
  height: 2px;
  background-color: var(--white);
} */

/* 搜索框 */
.search-form {
  position: relative;
  min-width: 200px;
}

.search-form .form-control {
  border-radius: 30px;
  border: 1px solid #dee2e6;
  padding: 0.375rem 1rem 0.375rem 1.2rem;
  font-size: 0.9rem;
  background: #f5f6fa;
}

.search-form .form-control:focus {
  border-color: var(--primary-dark);
  box-shadow: 0 0 0 0.2rem rgba(21, 18, 123, 0.15);
  background: #fff;
}

.search-form .btn-search {
  position: absolute;
  right: 4px;
  top: 4px;
  background: var(--primary-dark);
  color: #fff;
  border: none;
  border-radius: 30px;
  padding: 0.2rem 1rem;
  font-size: 0.85rem;
}

.search-form .btn-search:hover {
  background: var(--primary-deeper);
}

/* 移动端左侧滑出菜单 */
.mobile-menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 9999;
}

.mobile-menu-overlay.active {
  display: block;
}

.mobile-menu-panel {
  position: fixed;
  top: 0;
  left: -310px;
  width: 300px;
  height: 100%;
  background: var(--white);
  z-index: 10000;
  box-shadow: 2px 0 20px rgba(0, 0, 0, 0.15);
  transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  padding: 20px 0;
}

.mobile-menu-panel.open {
  left: 0;
}

.mobile-menu-header {
  padding: 0 20px 20px 20px;
  border-bottom: 1px solid #e9ecef;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mobile-menu-header .close-btn {
  background: none;
  border: none;
  font-size: 1.8rem;
  color: var(--gray-dark);
  cursor: pointer;
  padding: 0 8px;
}

.mobile-menu-header .close-btn:hover {
  color: var(--primary-dark);
}

.mobile-menu-body {
  padding: 20px;
}

.mobile-menu-body .mobile-nav-link {
  display: block;
  padding: 14px 0;
  color: var(--gray-dark);
  font-size: 1.1rem;
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid #f1f3f5;
  transition: 0.2s;
}

.mobile-menu-body .mobile-nav-link:hover,
.mobile-menu-body .mobile-nav-link.active {
  color: var(--primary-dark);
  padding-left: 12px;
}

.mobile-menu-body .mobile-nav-link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  background: var(--primary-dark);
  border-radius: 2px;
}

.mobile-menu-body .mobile-nav-link {
  position: relative;
}

.mobile-menu-footer {
  padding: 20px;
  border-top: 1px solid #e9ecef;
  margin-top: 20px;
}

.mobile-menu-footer .mobile-phone {
  display: block;
  margin-top: 8px;
  color: var(--primary-dark);
  font-weight: 600;
  text-decoration: none;
}

.mobile-menu-footer .mobile-contact {
  font-size: 0.9rem;
  color: var(--gray-dark);
}

.mobile-menu-trigger {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary-dark);
  padding: 4px 8px;
  cursor: pointer;
}

.mobile-menu-trigger:hover {
  color: var(--primary-dark);
}



/* ===== 底部板块 ===== */
.footer-section {
  padding-top: 60px;
  background-color: var(--primary-dark);
  color: #ffffff;
}

.widget {
  padding: 0 4px;
}

.widget-title {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 15px;
  /* padding-bottom: 12px; */
  /* border-bottom: 2px solid rgba(255, 215, 0, 0.4); */
  color: #ffffff;
}

.widget-nav-menu {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.widget-nav-menu li {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1;
}

.widget-nav-menu li i {
  width: 24px;
  color: #FFD700;
  margin-right: 6px;
}

.widget-nav-menu a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.3s ease, padding-left 0.3s ease;
  display: inline-block;
}

.widget-nav-menu a:hover {
  color: var(--white);
  padding-left: 6px;
}

.footer-text {
  color: rgba(255, 255, 255, 0.75);
}

/* 版权信息 */
.footer-copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 60px;
  padding: 20px 0 24px;
  text-align: center;
}

.footer-copyright p {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 1px;
}

/* 响应式 */
@media (max-width: 768px) {
  .footer-section {
    padding-top: 40px;
  }

  .widget-title {
    font-size: 1rem;
    margin-bottom: 16px;
  }

  .widget-nav-menu li {
    font-size: 0.95rem;
  }

  .footer-copyright {
    margin-top: 30px;
    padding: 16px 0 20px;
  }

  .footer-copyright p {
    font-size: 0.8rem;
  }
}

@media (max-width: 576px) {
  .footer-section {
    padding-top: 32px;
  }

  .widget-title {
    font-size: 0.95rem;
    margin-bottom: 12px;
  }

  .widget-nav-menu li {
    font-size: 0.9rem;
  }

  .footer-copyright {
    margin-top: 30px;
    padding: 14px 0 18px;
  }
}


/* hero 轮播 */
.hero-section .swiper-container {
  width: 100%;
  position: relative;
}

.hero-section .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-section .swiper-pagination-bullet {
  width: 14px;
  height: 14px;
  background: rgba(255, 255, 255, 0.6);
  opacity: 0.7;
  transition: 0.25s;
  margin: 0 6px !important;
  border: 2px solid transparent;
}

.hero-section .swiper-pagination-bullet-active {
  background: var(--white);
  opacity: 1;
  border-color: var(--primary-dark);
  transform: scale(1.15);
  box-shadow: 0 0 12px rgba(21, 18, 123, 0.5);
}

.swiper-pagination {
  bottom: 16px !important;
}

/* 响应式 */
@media (max-width: 991px) {
  .navbar-nav {
    display: none !important;
  }

  .mobile-menu-trigger {
    display: inline-block;
  }

  .search-form {
    min-width: 160px;
  }
}

@media (max-width: 768px) {
  .search-form {
    min-width: 120px;
  }
}

@media (max-width: 576px) {

  .top-contact-bar .contact-info a,
  .lang-switch {
    font-size: 0.9rem;
  }

  .search-form {
    min-width: 100px;
  }

  .search-form .form-control {
    font-size: 0.8rem;
    padding: 0.3rem 0.8rem 0.3rem 1rem;
  }

  .search-form .btn-search {
    padding: 0.1rem 0.7rem;
    font-size: 0.75rem;
  }
}


/* =================== 板块头部标题组件 =====================*/
.section-header {
  margin-bottom: 48px;
}

.section-header-2 {
  background-color: var(--primary-dark);
}

.section-header-title {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 15px;
  gap: 20px;
}

.section-header-title .line {
  flex: 0 0 60px;
  height: 2px;
  background: var(--primary-dark);
  position: relative;
}

.section-header-title .line-2 {
  background: var(--white);
}

.section-header-title .title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: 4px;
  margin: 0;
  white-space: nowrap;
}

.section-header-description {
  font-size: 1.2rem;
  color: var(--gray-dark);
  text-align: center;
}

.section-header-title .title-2,
.section-header-description-2 {
  color: var(--white);
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .section-header {
    margin-bottom: 32px;
  }

  .section-header-title {
    gap: 12px;
  }

  .section-header-title .line {
    flex: 0 0 40px;
  }

  .section-header-title .title {
    font-size: 1.5rem;
    letter-spacing: 2px;
  }

  .section-header-description {
    font-size: 1rem;
  }
}

@media (max-width: 576px) {
  .section-header {
    margin-bottom: 24px;
  }

  .section-header-title {
    gap: 8px;
  }

  .section-header-title .line {
    flex: 0 0 30px;
  }

  .section-header-title .title {
    letter-spacing: 1px;
  }
}


/* =================== 首页产品分类 =====================*/
.product-category-card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(21, 18, 123, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
  text-decoration: none;
  display: block;
}

.product-category-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 32px rgba(21, 18, 123, 0.15);
}

.product-category-card .card-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #f0f2f5 0%, #e8ecf1 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--primary-dark);
  transition: transform 0.3s ease;
  position: relative;
  overflow: hidden;
}

.product-category-card:hover .card-image {
  transform: scale(1.02);
}

.product-category-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-category-card .card-name {
  padding: 18px 20px;
  text-align: center;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--gray-dark);
  letter-spacing: 2px;
  border-top: 3px solid var(--primary-dark);
  transition: color 0.3s ease, border-color 0.3s ease;
}

.product-category-card:hover .card-name {
  color: var(--primary-dark);
  /* border-color: var(--highlight-gold); */
}

@media (max-width: 768px) {
  .product-category-card .card-name {
    padding: 14px 16px;
    font-size: 1rem;
  }
}


/* ==================== 服务入口板块 ==================== */
.service-card {
  display: block;
  background: #ffffff;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(21, 18, 123, 0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-decoration: none;
  height: 100%;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(21, 18, 123, 0.12);
}

/* 图片区域 */
.service-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #e8ecf1 0%, #d5dae3 100%);
  position: relative;
  overflow: hidden;
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 服务内容 */
.service-body {
  padding: 24px 24px 28px;
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 10px;
  letter-spacing: 1px;
}

.service-desc {
  font-size: 0.95rem;
  color: #6c757d;
  line-height: 1.8;
  margin-bottom: 16px;
  min-height: 52px;
}

/* 服务按钮 */
.service-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gray-dark);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 8px 0;
  transition: all 0.3s ease;
}

.service-btn i {
  transition: transform 0.3s ease;
  font-size: 0.85rem;
}

.service-card:hover .service-btn {
  color: var(--primary-dark);
}

.service-card:hover .service-btn i {
  transform: translateX(4px);
}

/* 响应式 */
@media (max-width: 768px) {
  .service-body {
    padding: 18px 18px 22px;
  }

  .service-title {
    font-size: 1.1rem;
  }

  .service-desc {
    font-size: 0.85rem;
    min-height: 40px;
  }

  .service-btn {
    font-size: 0.85rem;
  }
}

@media (max-width: 576px) {
  .service-body {
    padding: 16px 16px 20px;
  }

  .service-desc {
    min-height: auto;
  }
}



/* ==================== PP生态地板材质板块 ==================== */
.pp-material-banner {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 16 / 5.5;
  background: rgba(0, 0, 0, 0.35);
}

/* 背景图片 */
.pp-material-image {
  width: 100%;
  height: 100%;
  position: relative;
}

.pp-material-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.6;
}

/* 图片占位 */
.pp-material-image .image-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  color: rgba(255, 255, 255, 0.08);
}

.pp-material-image .image-placeholder i {
  animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
    opacity: 0.3;
  }

  50% {
    transform: scale(1.1);
    opacity: 0.6;
  }
}

/* 居中文字内容 */
.pp-material-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #ffffff;
  width: 80%;
  max-width: 700px;
  z-index: 2;
}

.pp-material-content .pp-title {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: 4px;
  margin-bottom: 16px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  /* background: linear-gradient(135deg, #ffffff 0%, #FFD700 100%); */
  background: linear-gradient(135deg, #f5efe8 0%, #e8dccc 50%, #d4c4a8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pp-material-content .pp-desc {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin: 0;
}

.pp-material-content .tag {
  display: inline-block;
  padding: 8px 28px;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 1px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  transition: all 0.3s ease;
  -webkit-text-fill-color: #ffffff;
}

.pp-material-content .tag:hover {
  /* background: rgba(255, 215, 0, 0.25);
  border-color: #FFD700;
  transform: translateY(-2px); */
}

/* 响应式 */
@media (max-width: 992px) {
  .pp-material-banner {
    aspect-ratio: 16 / 6;
  }

  .pp-material-content .pp-title {
    font-size: 2.4rem;
    letter-spacing: 3px;
  }

  .pp-material-content .tag {
    padding: 6px 20px;
    font-size: 1rem;
  }
}

@media (max-width: 768px) {
  .pp-material-banner {
    aspect-ratio: 16 / 7;
    border-radius: 12px;
  }

  .pp-material-content .pp-title {
    font-size: 1.8rem;
    letter-spacing: 2px;
    margin-bottom: 12px;
  }

  .pp-material-content .pp-desc {
    gap: 10px;
  }

  .pp-material-content .tag {
    padding: 5px 14px;
    font-size: 0.85rem;
  }

  .pp-material-image .image-placeholder {
    font-size: 4rem;
  }
}

@media (max-width: 576px) {
  .pp-material-banner {
    aspect-ratio: 16 / 8;
    border-radius: 10px;
  }

  .pp-material-content {
    width: 90%;
  }

  .pp-material-content .pp-title {
    font-size: 1.3rem;
    letter-spacing: 1px;
    margin-bottom: 8px;
  }

  .pp-material-content .tag {
    padding: 4px 12px;
    font-size: 0.75rem;
  }

  .pp-material-image .image-placeholder {
    font-size: 2.8rem;
  }
}



/* ===== 栏目单页 ===== */

.column-feature-image {
  position: relative;
  overflow: hidden;
}

.column-feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.column-feature-content {
  padding: 0 8px;
}

.column-feature-badge {
  display: inline-block;
  background-color: var(--primary-dark);
  color: #ffffff;
  padding: 8px 30px;
  border-radius: 12px;
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 2px;
}

.column-feature-subtitle {
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--primary-dark);
  margin-top: 25px;
  margin-bottom: 35px;
  line-height: 1.4;
}

.column-feature-desc {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--primary-dark);
  margin-bottom: 14px;
}

@media (max-width: 992px) {
  .column-feature-content {
    padding: 0;
  }

  .column-feature-subtitle {
    font-size: 1.4rem;
  }
}

@media (max-width: 768px) {
  .column-feature-subtitle {
    font-size: 1.2rem;
  }

  .column-feature-badge {
    font-size: 1.2rem;
    padding: 5px 18px;
  }
}


/* ========== 产品信息卡片 ========== */
.product-info-card,
.service-adv-card {
  background: #f9f9f9;
  border-radius: 16px;
  padding: 28px 24px 27px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  height: 100%;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-info-card:hover,
.service-adv-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.10);
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 10px;
  /* padding-bottom: 10px; */
  /* border-bottom: 2px solid rgba(21, 18, 123, 0.10); */
  letter-spacing: 1px;
}

.service-adv-card .card-title {
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(21, 18, 123, 0.10);
}

.card-title-2 {
  margin-top: 10px;
}

.card-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.card-list li {
  padding: 5px 0;
  font-size: 1rem;
  line-height: 1.3;
  color: var(--gray-dark);
}

.size-label {
  font-weight: 600;
  color: var(--primary-dark);
}

/* 响应式 */
@media (max-width: 992px) {

  .product-info-card,
  .service-adv-card {
    padding: 24px 20px 23px;
  }

  .card-list li::before {
    font-size: 1rem;
  }
}

@media (max-width: 768px) {

  .product-info-card,
  .service-adv-card {
    padding: 20px 18px 19px;
    border-radius: 12px;
  }

  .card-title {
    font-size: 1rem;
    margin-bottom: 12px;
    padding-bottom: 8px;
  }

  .card-list li {
    font-size: 0.9rem;
  }
}

@media (max-width: 576px) {

  .product-info-card,
  .service-adv-card {
    padding: 16px 14px 15px;
    border-radius: 10px;
  }
}


/* ==================== 通用表格样式（可复用） ==================== */
.tech-table-wrapper table,
.tech-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 1rem;
  background: #ffffff;
  /* border-radius: 12px; */
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* 表头 */
.tech-table-wrapper table thead,
.tech-table thead {
  background: var(--primary-dark);
  color: #ffffff;
}

.tech-table-wrapper table thead th,
.tech-table thead th {
  padding: 14px 18px;
  text-align: left;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.5px;
}

/* 表格内容 */
.tech-table-wrapper table tbody td,
.tech-table tbody td {
  padding: 12px 18px;
  border-bottom: 1px solid #f0f2f5;
  color: #4a4a4a;
  font-size: 0.95rem;
  line-height: 1.5;
}

/* 表格行悬停效果 */
.tech-table-wrapper table tbody tr:hover,
.tech-table tbody tr:hover {
  background: #f5f8ff;
}

/* 表格最后一行无边框 */
.tech-table-wrapper table tbody tr:last-child td,
.tech-table tbody tr:last-child td {
  border-bottom: none;
}

/* 表格偶数行浅色背景（可选） */
.tech-table-wrapper table tbody tr:nth-child(even),
.tech-table tbody tr:nth-child(even) {
  background: #fafbff;
}

.tech-table-wrapper table tbody tr:nth-child(even):hover,
.tech-table tbody tr:nth-child(even):hover {
  background: #f5f8ff;
}

@media (max-width: 768px) {

  .tech-table-wrapper table tbody td,
  .tech-table tbody td {
    font-size: 0.9rem;
  }
}

/* ================= 技术参数样式 ====================== */
.tech-image-wrapper {
  text-align: center;
}

.tech-image {
  position: relative;
  overflow: hidden;
}

.tech-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.tech-image-caption,
.tech-table-caption {
  margin-top: 14px;
  margin-bottom: 0;
  font-size: 1rem;
  color: var(--gray-dark);
}

@media (max-width: 992px) {
  .tech-table {
    font-size: 0.9rem;
  }

  .tech-table thead th,
  .tech-table tbody td {
    padding: 10px 14px;
    font-size: 0.9rem;
  }
}

@media (max-width: 768px) {
  .technical-section {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .tech-table {
    font-size: 0.78rem;
  }

  .tech-table thead th,
  .tech-table tbody td {
    padding: 8px 10px;
  }
}

@media (max-width: 576px) {

  .tech-table thead th,
  .tech-table tbody td {
    padding: 6px 8px;
  }
}




/* ====================== 通用子栏目展示 ====================== */
.subnav-wrapper {
  display: flex;
  justify-content: center;
  padding: 50px 0 90px;
  background: transparent;
}

.subnav-container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  max-width: 100%;
}

/* 子栏目按钮样式 */
.subnav-item {
  display: inline-block;
  padding: 10px 30px;
  background: #f0f2f5;
  color: #4a4a4a;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  letter-spacing: 0.5px;
}

/* 普通状态悬停 */
.subnav-item:hover {
  background: #e2e6ed;
  color: var(--primary-dark);
  text-decoration: none;
}

/* 激活状态 - 高亮 */
.subnav-item.active {
  background: var(--primary-dark);
  color: #ffffff;
}

.subnav-item.active:hover {
  background: var(--primary-deeper);
  color: #ffffff;
}

@media (max-width: 768px) {
  .subnav-container {
    gap: 10px;
  }

  /* .subnav-item {
    padding: 6px 16px;
    font-size: 0.9rem;
  } */
}



/* ====================== 定制流程 ====================== */
.process-card {
  text-align: center;
  padding: 32px 20px 28px;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  position: relative;
  border-top: 4px solid var(--primary-dark);
}

.process-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.10);
}

/* 序号 */
.process-number {
  font-size: 2.6rem;
  font-weight: 800;
  color: rgba(21, 18, 123, 0.10);
  line-height: 1;
  margin-bottom: 12px;
  font-family: 'Arial', sans-serif;
  letter-spacing: 1px;
}

/* 标题 */
.process-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

/* 描述 */
.process-desc {
  font-size: 1rem;
  color: var(--gray-dark);
  margin: 0;
  line-height: 1.6;
}

.process-card::after {
  content: '';
  position: absolute;
  right: -16px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 2px;
  background: var(--primary-dark);
  opacity: 0.15;
}

.process-card:last-child::after {
  display: none;
}

@media (max-width: 992px) {
  .process-card {
    padding: 28px 16px 24px;
  }

  .process-number {
    font-size: 2.2rem;
  }

  .process-card::after {
    display: none;
  }
}

@media (max-width: 768px) {
  .process-card {
    padding: 24px 16px 20px;
    border-radius: 10px;
  }

  .process-number {
    font-size: 2rem;
  }
}

@media (max-width: 576px) {
  .process-card {
    padding: 20px 14px 18px;
    border-radius: 8px;
  }

  .process-number {
    font-size: 1.6rem;
    margin-bottom: 8px;
  }
}



/* ====================== 定制选项 ====================== */
.custom-option-card {
  background: #ffffff;
  border-radius: 12px;
  padding: 28px 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}

.custom-option-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.10);
}

/* 标题 */
.custom-option-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(21, 18, 123, 0.08);
  letter-spacing: 1px;
}

/* 选项列表 */
.custom-option-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.custom-option-list li {
  font-size: 1rem;
  color: var(--gray-dark);
  line-height: 1.3;
  position: relative;
}

@media (max-width: 767px) {
  .custom-option-card {
    padding: 20px 18px;
    border-radius: 10px;
  }

  .custom-option-title {
    margin-bottom: 12px;
    padding-bottom: 8px;
  }
}



/* ====================== 定制案例 ====================== */
.custom-case-item {
  background: transparent;
  transition: transform 0.3s ease;
}

.custom-case-item:hover {
  transform: translateY(-4px);
}

.custom-case-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #f0f2f5;
}

.custom-case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.custom-case-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--gray-dark);
  margin-top: 16px;
  margin-bottom: 6px;
  letter-spacing: 1px;
}

.custom-case-desc {
  font-size: 0.95rem;
  color: var(--color-gray-300);
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 767px) {
  .custom-case-title {
    font-size: 1.05rem;
    margin-top: 12px;
  }
}



/* ====================== 呼吁定制 ====================== */
.cta-wrapper {
  text-align: center;
  padding: 60px 40px 50px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-deeper) 100%);
  border-radius: 16px;
  position: relative;
  overflow: hidden;
}

/* 装饰光效 */
.cta-wrapper::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: rgba(255, 215, 0, 0.06);
  border-radius: 50%;
  pointer-events: none;
}

.cta-wrapper::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 250px;
  height: 250px;
  background: rgba(255, 215, 0, 0.04);
  border-radius: 50%;
  pointer-events: none;
}

/* 标题 */
.cta-title {
  font-size: 2.4rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
  letter-spacing: 2px;
  position: relative;
  z-index: 1;
}

/* 描述 */
.cta-desc {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 32px;
  letter-spacing: 1px;
  position: relative;
  z-index: 1;
}

/* 信息区域 */
.cta-info {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 60px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.cta-item {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

/* 标签 */
.cta-label {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.5px;
}

.cta-label i {
  margin-right: 6px;
  color: #FFD700;
}

/* 电话 */
.cta-phone {
  font-size: 1.3rem;
  font-weight: 700;
  color: #FFD700;
  text-decoration: none;
  transition: color 0.3s ease;
}

.cta-phone:hover {
  color: #ffffff;
}

/* 咨询按钮 */
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 28px;
  background: #FFD700;
  color: var(--primary-dark);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 50px;
  transition: all 0.3s ease;
  letter-spacing: 0.5px;
}

.cta-btn i {
  transition: transform 0.3s ease;
}

.cta-btn:hover {
  background: #ffffff;
  color: var(--primary-dark);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 215, 0, 0.3);
}

.cta-btn:hover i {
  transform: translateX(4px);
}

@media (max-width: 767px) {
  .cta-wrapper {
    padding: 40px 20px 36px;
    border-radius: 12px;
  }

  .cta-title {
    font-size: 1.6rem;
  }

  .cta-desc {
    font-size: 0.95rem;
    margin-bottom: 24px;
  }

  .cta-info {
    gap: 20px;
    flex-direction: column;
  }

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

  .cta-phone {
    font-size: 1.1rem;
  }

  .cta-btn {
    padding: 8px 22px;
    font-size: 0.9rem;
  }

  .cta-label {
    font-size: 0.85rem;
  }
}


/* ========================== 关于我们 ========================== */
about-content {
  line-height: 1.6;
}

.about-content p {
  margin-bottom: 0;
}


.return-home {
  display: inline-block;
  padding: 15px 32px;
  background-color: var(--primary-dark);
  color: var(--white);
  font-size: 1.3rem;
  border-radius: 10px;
}

@media (max-width: 768px) {
  .return-home {
    padding: 10px 20px;
    font-size: 1.1rem;
  }
}



/* ========================== 维护保养 ========================== */
.maintenance-card {
  text-align: center;
  padding: 32px 20px 28px;
  background: #f8faff;
  border-radius: 12px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}

.maintenance-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

/* 图标 */
.maintenance-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(21, 18, 123, 0.08);
  border-radius: 50%;
  font-size: 1.4rem;
  color: var(--primary-dark);
  transition: background 0.3s ease, color 0.3s ease;
}

.maintenance-card:hover .maintenance-icon {
  background: var(--primary-dark);
  color: #ffffff;
}

/* 标题 */
.maintenance-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

/* 描述 */
.maintenance-desc {
  font-size: 0.9rem;
  color: var(--gray-dark);
  line-height: 1.7;
  margin: 0;
  max-width: 260px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 767px) {
  .maintenance-card {
    padding: 24px 16px 20px;
  }

  .maintenance-icon {
    width: 48px;
    height: 48px;
    font-size: 1.2rem;
    margin-bottom: 12px;
  }

  .maintenance-title {
    font-size: 1.05rem;
  }
}


/* ==================== 服务流程卡片 ==================== */
.service-step-card {
  text-align: center;
  padding: 32px 20px 28px;
  background: #f8faff;
  border-radius: 12px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}

.service-step-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.step-number {
  display: flex;
  width: 60px;
  height: 60px;
  align-items: center;
  justify-content: center;
  margin: 0 auto 10px;
  border-radius: 50%;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
  background: rgba(21, 18, 123, 0.08);
}

.step-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}

.step-desc {
  font-size: 0.9rem;
  color: var(--gray-dark);
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 767px) {
  .service-step-card {
    padding: 24px 16px 20px;
  }

  .step-number {
    font-size: 2rem;
  }

  .step-title {
    font-size: 1.05rem;
  }
}



.section-two-head {
  text-align: left;
}

.section-two-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary-dark);
}

.section-two-desc {
  font-size: 1rem;
  color: var(--gray-dark);
}

@media (max-width: 767px) {
  .section-two-title {
    font-size: 1.3rem;
  }
}



/* ========================================
   定制支持板块
   ======================================== */
.section-two-head {
  text-align: left;
  margin-bottom: 32px;
}

.section-two-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: 2px;
  margin: 0;
}

/* ==================== 定制支持卡片 ==================== */
.custom-support-item {
  background: #ffffff;
  border-radius: 12px;
  padding: 24px 24px 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}

.custom-support-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.10);
}

.custom-support-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.custom-support-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(21, 18, 123, 0.08);
  border-radius: 8px;
  font-size: 1.4rem;
  color: var(--primary-dark);
  transition: background 0.3s ease, color 0.3s ease;
}

.custom-support-item:hover .custom-support-icon {
  background: var(--primary-dark);
  color: #ffffff;
}

.custom-support-info {
  flex: 1;
  min-width: 0;
}

.custom-support-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gray-dark);
  margin: 0 0 2px 0;
  letter-spacing: 0.5px;
}

.custom-support-desc {
  font-size: 0.88rem;
  color: #6c757d;
  margin: 0;
  line-height: 1.4;
}

.custom-support-params {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 14px;
  border-top: 1px solid #f0f2f5;
}

.param-tag {
  display: inline-block;
  padding: 4px 14px;
  background: #f5f7fa;
  color: #4a4a4a;
  font-size: 0.82rem;
  border-radius: 4px;
  transition: background 0.3s ease, color 0.3s ease;
}

.param-tag:hover {
  background: rgba(21, 18, 123, 0.10);
  color: var(--primary-dark);
}

@media (max-width: 767px) {
  .section-two-title {
    font-size: 1.5rem;
  }

  .custom-support-item {
    padding: 18px 16px 16px;
  }

  .custom-support-header {
    gap: 12px;
    margin-bottom: 12px;
  }

  .custom-support-icon {
    width: 44px;
    height: 44px;
    font-size: 1.1rem;
    border-radius: 6px;
  }

  .custom-support-title {
    font-size: 0.95rem;
  }

  .custom-support-desc {
    font-size: 0.82rem;
  }

  .param-tag {
    font-size: 0.75rem;
    padding: 3px 10px;
  }

  .custom-support-params {
    gap: 6px;
    padding-top: 10px;
  }
}