/*
█████████████████████████████████████████████████████
  BOOTSTRAP CONVERTER - Elementor 到 Bootstrap 转换
█████████████████████████████████████████████████████

本文件包含 Bootstrap 框架的完整实现。
用于替换 Elementor 的所有 CSS 文件。

版本: 1.0
日期: 2025-12-12
*/

/* ═════════════════════════════════════════════════ */
/* 1. CSS 变量 - 修改这些来自定义主题 */
/* ═════════════════════════════════════════════════ */

:root {
  /* 色彩变量 */
  --primary-color: #1a1a1a;
  --secondary-color: #18575D;
  --accent-color: #134549;
  --text-dark: #333333;
  --text-light: #666666;
  --border-light: #e0e0e0;
  --bg-light: #f9f9f9;
  --bg-white: #ffffff;
  
  /* 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* 排版 */
  --font-sans: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 14px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-xxl: 28px;
  --font-size-3xl: 36px;
  --line-height-base: 1.6;
  --line-height-heading: 1.2;
  
  /* 阴影 */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 6px 6px 9px rgba(0, 0, 0, 0.2);
  --shadow-xl: 12px 12px 50px rgba(0, 0, 0, 0.4);
  
  /* 过渡 */
  --transition-fast: 0.15s ease-in-out;
  --transition-base: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  
  /* 断点 */
  --breakpoint-xs: 0;
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  --breakpoint-xxl: 1400px;
}

/* ═════════════════════════════════════════════════ */
/* 2. 基础样式重置 */
/* ═════════════════════════════════════════════════ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: var(--font-size-base);
}

body {
  font-family: var(--font-sans);
  color: var(--text-dark);
  background-color: var(--bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ═════════════════════════════════════════════════ */
/* 3. 排版 - 标题、段落、链接等 */
/* ═════════════════════════════════════════════════ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: var(--line-height-heading);
  margin-bottom: var(--spacing-md);
  color: var(--text-dark);
}

h1 {
  font-size: var(--font-size-3xl);
}

h2 {
  font-size: var(--font-size-xxl);
}

h3 {
  font-size: var(--font-size-xl);
}

h4 {
  font-size: var(--font-size-lg);
}

h5, h6 {
  font-size: var(--font-size-base);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-light);
  line-height: var(--line-height-base);
}

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

a:hover {
  color: var(--primary-color);
  text-decoration: none;
}

/* ═════════════════════════════════════════════════ */
/* 4. 容器和网格布局 - 12 列系统 */
/* ═════════════════════════════════════════════════ */

.container {
  width: 100%;
  padding-right: var(--spacing-lg);
  padding-left: var(--spacing-lg);
  margin-right: auto;
  margin-left: auto;
  max-width: 1200px;
}

@media (max-width: 576px) {
  .container {
    padding-right: var(--spacing-md);
    padding-left: var(--spacing-md);
  }
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin-right: calc(var(--spacing-md) * -1);
  margin-left: calc(var(--spacing-md) * -1);
}

.col, [class^='col-'] {
  padding-right: var(--spacing-md);
  padding-left: var(--spacing-md);
}

.col {
  flex: 1 0 0%;
}

.col-1 { flex: 0 0 8.333333%; }
.col-2 { flex: 0 0 16.666667%; }
.col-3 { flex: 0 0 25%; }
.col-4 { flex: 0 0 33.333333%; }
.col-5 { flex: 0 0 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }
.col-auto { flex: 0 0 auto; width: auto; max-width: 100%; }

/* 栅格间距 */
.g-4 {
  --gutter-x: 1.5rem;
  --gutter-y: 1.5rem;
}

.g-4 > * {
  margin-top: var(--gutter-y);
  padding-right: calc(var(--gutter-x) / 2);
  padding-left: calc(var(--gutter-x) / 2);
}


/* 平板设备 */
@media (min-width: 768px) {
  .col-md-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
  .col-md-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
  .col-md-3 { flex: 0 0 25%; max-width: 25%; }
  .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
  .col-md-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
  .col-md-6 { flex: 0 0 50%; max-width: 50%; }
  .col-md-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
  .col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
  .col-md-9 { flex: 0 0 75%; max-width: 75%; }
  .col-md-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
  .col-md-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
  .col-md-12 { flex: 0 0 100%; max-width: 100%; }
}

/* 大屏设备 */
@media (min-width: 992px) {
  .col-lg-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
  .col-lg-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
  .col-lg-3 { flex: 0 0 25%; max-width: 25%; }
  .col-lg-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
  .col-lg-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
  .col-lg-6 { flex: 0 0 50%; max-width: 50%; }
  .col-lg-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
  .col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
  .col-lg-9 { flex: 0 0 75%; max-width: 75%; }
  .col-lg-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
  .col-lg-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
  .col-lg-12 { flex: 0 0 100%; max-width: 100%; }
}

/* 移动设备 */
@media (max-width: 576px) {
  .col-sm-1 { flex: 0 0 8.333333%; }
  .col-sm-2 { flex: 0 0 16.666667%; }
  .col-sm-3 { flex: 0 0 25%; }
  .col-sm-4 { flex: 0 0 33.333333%; }
  .col-sm-5 { flex: 0 0 41.666667%; }
  .col-sm-6 { flex: 0 0 50%; }
  .col-sm-7 { flex: 0 0 58.333333%; }
  .col-sm-8 { flex: 0 0 66.666667%; }
  .col-sm-9 { flex: 0 0 75%; }
  .col-sm-10 { flex: 0 0 83.333333%; }
  .col-sm-11 { flex: 0 0 91.666667%; }
  .col-sm-12 { flex: 0 0 100%; }
}

/* ═════════════════════════════════════════════════ */
/* 5. 按钮组件 */
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.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: 4px;
  transition: all var(--transition-base);
  text-decoration: none;
  user-select: none;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, #18575D, #134549);
  color: white;
  border: none;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(24, 87, 93, 0.4);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #134549, #18575D);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(24, 87, 93, 0.7);
  color: white;
}

.btn-secondary {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.btn-secondary:hover {
  background-color: #333333;
  border-color: #333333;
}

.btn-outline {
  background-color: transparent;
  color: var(--secondary-color);
  border-color: var(--secondary-color);
}

.btn-outline:hover {
  background-color: var(--secondary-color);
  color: white;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

.btn-light {
  background-color: white;
  color: var(--text-dark);
  border-color: white;
}

.btn-light:hover {
  background-color: #f0f0f0;
  border-color: #f0f0f0;
  color: var(--text-dark);
}

.btn-outline-primary {
  background-color: transparent;
  color: var(--secondary-color);
  border-color: var(--secondary-color);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-outline-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #18575D, #134549);
  transition: left 0.4s ease;
  z-index: -1;
}

.btn-outline-primary:hover::before {
  left: 0;
}

.btn-outline-primary:hover {
  color: var(--primary-color);
  border-color: var(--secondary-color);
  transform: translateY(-2px);
}

.btn-link {
  color: var(--secondary-color);
  text-decoration: none;
  background: transparent;
  border: none;
  padding: 0;
  font-weight: 500;
  transition: color var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-link:hover {
  color: var(--primary-color);
  text-decoration: none;
}

/* ═════════════════════════════════════════════════ */
/* 6. 导航栏组件 - 响应式菜单 */
/* ═════════════════════════════════════════════════ */

.navbar {
  background-color: #ffffff;
  padding: var(--spacing-md) 0;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.navbar-brand {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text-dark);
  text-decoration: none;
}

.navbar-brand img {
  height: auto;
  max-width: 150px;
}

.navbar-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
  margin: 0;
  padding: 0;
}

.navbar-item {
  position: relative;
  list-style: none;
}

.navbar-link {
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-base);
  padding: var(--spacing-sm) 0;
  display: inline-block;
}

.navbar-link:hover,
.navbar-link.active {
  color: var(--secondary-color);
  text-decoration: none;
}

/* 下拉菜单 */
.dropdown {
  position: relative;
}

.dropdown-menu {
  display: block;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #ffffff;
  border-radius: 4px;
  box-shadow: var(--shadow-md);
  min-width: 200px;
  padding: var(--spacing-md) 0;
  list-style: none;
  margin-top: var(--spacing-sm);
  z-index: 1000;
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li {
  margin: 0;
  list-style: none;
}

.dropdown-menu li a {
  padding: 0.625rem 1.25rem;
  color: var(--text-dark);
  text-decoration: none;
  transition: all 0.3s ease;
  display: block;
  position: relative;
}

.dropdown-menu li a:hover {
  background: rgba(24, 87, 93, 0.1);
  color: #18575D;
  padding-left: 1.5rem;
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 24px;
  color: var(--text-dark);
  padding: var(--spacing-sm);
  z-index: 1001;
}

.navbar-toggle .menu-icon {
  display: block;
  width: 30px;
  height: 3px;
  background: var(--text-dark);
  position: relative;
  transition: all 0.3s ease;
}

.navbar-toggle .menu-icon::before,
.navbar-toggle .menu-icon::after {
  content: '';
  display: block;
  width: 30px;
  height: 3px;
  background: var(--text-dark);
  position: absolute;
  transition: all 0.3s ease;
}

.navbar-toggle .menu-icon::before {
  top: -8px;
}

.navbar-toggle .menu-icon::after {
  bottom: -8px;
}

@media (max-width: 768px) {
  .navbar-toggle {
    display: block !important;
    color: var(--text-dark);
    position: relative;
    z-index: 1002;
  }

  .navbar-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background-color: rgba(26, 26, 26, 0.98);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    margin: 0;
    z-index: 1000;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }

  .navbar-menu.active {
    display: flex;
  }

  .navbar-item {
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm) 0;
  }
  
  .navbar-item:last-child {
    border-bottom: none;
  }
  
  .navbar-link {
    padding: var(--spacing-sm) 0;
  }

  .dropdown-menu {
    position: static;
    display: none;
    box-shadow: none;
    background-color: rgba(255, 255, 255, 0.1);
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm) 0 var(--spacing-sm) var(--spacing-md);
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
  }
  
  .dropdown.active .dropdown-menu {
    display: block;
  }
}

/* 语言选择下拉菜单 */
.language-dropdown {
  position: relative;
}

.language-selector {
  display: flex;
  align-items: center;
  gap: 3px;
}

.current-language {
  font-weight: 600;
  font-size: 14px;
}

.language-menu {
  min-width: 160px;
}

.language-menu li a {
  padding: 0.625rem 1.25rem;
  display: block;
  color: var(--text-dark);
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
}

.language-menu li a.active {
  background: rgba(24, 87, 93, 0.1);
  color: #18575D;
}

.language-menu li a.active::before {
  content: '✓';
  position: absolute;
  left: 0.75rem;
  font-weight: bold;
}

.language-menu li a.active {
  padding-left: 2.25rem;
}

.language-menu li a:hover {
  background: rgba(24, 87, 93, 0.15);
  color: #18575D;
  padding-left: 1.5rem;
}

@media (max-width: 768px) {
  .language-menu {
    position: static;
    background-color: rgba(24, 87, 93, 0.05);
    margin-top: var(--spacing-sm);
  }
  
  .language-menu li a {
    color: var(--text-dark);
  }
}

/* ═════════════════════════════════════════════════ */
/* 7. 卡片组件 */
/* ═════════════════════════════════════════════════ */

.card {
  background-color: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
}

.card-img-top {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.card-body {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-dark);
}

.card-text {
  color: var(--text-light);
  margin-bottom: var(--spacing-md);
  flex: 1;
}

.card-image {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.card-body {
  padding: var(--spacing-lg);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-dark);
}

.card-text {
  color: var(--text-light);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

/* ═════════════════════════════════════════════════ */
/* 8. 英雄部分 - 首页顶部横幅 */
/* ═════════════════════════════════════════════════ */

.hero {
  background-color: var(--primary-color);
  color: white;
  padding: var(--spacing-xxl) var(--spacing-lg);
  text-align: center;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  color: white;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
  color: #e0e0e0;
}

.hero-description {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-xl);
  color: #b0b0b0;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Hero Section (实际使用的类) */
.hero-section {
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('../wp-content/uploads/sites/73/2023/11/row-of-bulldozers-in-a-construction-site-XCCMP2Q.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: scroll;
  color: white;
  padding: 120px 0;
  position: relative;
  overflow: hidden;
  min-height: 600px;
  display: flex;
  align-items: center;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1;
}

.hero-section .container {
  position: relative;
  z-index: 2;
}

.hero-section .hero-content {
  text-align: left;
}

.hero-section .hero-subtitle {
  font-size: 12px;
  letter-spacing: 3px;
  color: white;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.hero-section .hero-title {
  font-size: 48px;
  color: white;
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.hero-section .hero-description {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 2rem;
  max-width: 600px;
}

/* 移动端优化 */
@media (max-width: 768px) {
  .hero-section {
    padding: 80px 0;
    min-height: 500px;
    background-attachment: scroll;
  }
  
  .hero-section .hero-title {
    font-size: 32px;
  }
  
  .hero-section .hero-subtitle {
    font-size: 11px;
  }
  
  .hero-section .hero-description {
    font-size: 14px;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .hero-section {
    background-attachment: scroll;
  }
}

.video-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: transform var(--transition-base);
  text-decoration: none;
}

.video-btn:hover {
  transform: scale(1.1);
  text-decoration: none;
}

/* Hero轮播图 */
.hero-carousel-section {
  position: relative;
  overflow: hidden;
}

.hero-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.hero-carousel-track {
  display: flex;
  transition: transform 0.6s ease-in-out;
}

.hero-slide {
  min-width: 100%;
  position: relative;
  display: flex;
  align-items: center;
  min-height: 850px;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
}

.hero-background::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5));
  z-index: 1;
}

.hero-slide .container {
  position: relative;
  z-index: 2;
  padding: 120px 15px;
}

.hero-slide .hero-content {
  color: white;
  text-align: left;
}

.hero-slide .hero-subtitle {
  font-size: 12px;
  letter-spacing: 3px;
  color: white;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.hero-slide .hero-title {
  font-size: 48px;
  color: white;
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.hero-slide .hero-description {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 2rem;
  max-width: 600px;
}

/* 轮播导航按钮 */
.hero-carousel-prev,
.hero-carousel-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  color: var(--primary-color);
}

.hero-carousel-prev:hover,
.hero-carousel-next:hover {
  background: linear-gradient(135deg, #18575D, #134549);
  color: white;
  transform: translateY(-50%) scale(1.1);
}

.hero-carousel-prev {
  left: 30px;
}

.hero-carousel-next {
  right: 30px;
}

/* 轮播指示点 */
.hero-carousel-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 10;
}

.hero-carousel-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all 0.3s ease;
}

.hero-carousel-dot.active {
  background: #18575D;
  width: 30px;
  border-radius: 6px;
}

/* 移动端优化 */
@media (max-width: 768px) {
  .hero-slide {
    min-height: 500px;
  }
  
  .hero-slide .container {
    padding: 80px 15px;
  }
  
  .hero-slide .hero-title {
    font-size: 32px;
  }
  
  .hero-slide .hero-subtitle {
    font-size: 11px;
  }
  
  .hero-slide .hero-description {
    font-size: 14px;
  }
  
  .hero-carousel-prev,
  .hero-carousel-next {
    width: 45px;
    height: 45px;
  }
  
  .hero-carousel-prev {
    left: 15px;
  }
  
  .hero-carousel-next {
    right: 15px;
  }
  
  .hero-carousel-dots {
    bottom: 20px;
  }
}

/* 客户Logo轮播 */
.client-logos-carousel {
  overflow: hidden;
  position: relative;
  padding: 10px 0;
}

.client-logos-track {
  display: flex;
  animation: logoScroll 20s linear infinite;
  gap: 60px;
}

.client-logo-item {
  flex-shrink: 0;
  width: 150px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  filter: grayscale(100%) opacity(0.7);
  transition: all 0.3s ease;
}

.client-logo-item:hover {
  filter: grayscale(0%) opacity(1);
}

.client-logo-item img {
  max-width: 100%;
  max-height: 80px !important;
  height: auto;
  width: auto;
  object-fit: contain;
}

.client-logo-item .img-fluid {
  max-height: 80px !important;
  height: 80px !important;
}

@keyframes logoScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(calc(-150px * 5 - 60px * 5));
  }
}

.client-logos-track:hover {
  animation-play-state: paused;
}

@media (max-width: 768px) {
  .client-logos-track {
    gap: 40px;
  }
  
  .client-logo-item {
    width: 100px;
  }
  
  @keyframes logoScroll {
    0% {
      transform: translateX(0);
    }
    100% {
      transform: translateX(calc(-100px * 5 - 40px * 5));
    }
  }
}

/* 热销产品轮播 */
.hot-products-section {
  background: #f9fafb;
}

.hot-products-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--primary-color);
  letter-spacing: -0.02em;
}

@media (max-width: 768px) {
  .hot-products-title {
    font-size: 1.75rem;
  }
}

.hot-products-carousel-container {
  overflow: hidden;
  position: relative;
  padding: 20px 0;
}

.hot-products-track {
  display: flex;
  gap: var(--spacing-lg);
  animation: hotProductsScroll 10s linear infinite;
}

.hot-products-track:hover {
  animation-play-state: paused;
}

.hot-product-card {
  flex-shrink: 0;
  width: calc((100% - var(--spacing-lg) * 2) / 3);
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

.hot-product-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  transform: translateY(-4px);
}

@media (max-width: 992px) {
  .hot-product-card {
    width: calc((100% - var(--spacing-lg)) / 2);
  }
}

@media (max-width: 768px) {
  .hot-product-card {
    width: 100%;
  }
}

.hot-product-image {
  width: 100%;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 1rem;
  background: #f9f9f9;
}

.hot-product-image img {
  width: auto !important;
  height: auto !important;
  min-height: 150px !important;
  max-width: 100% !important;
  max-height: 100% !important;
  object-fit: contain !important;
  transition: transform 0.5s ease;
  display: block !important;
}

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

.hot-product-body {
  padding: var(--spacing-lg);
}

.hot-product-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-dark);
  margin: 0;
  min-height: auto;
}

@keyframes hotProductsScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(calc(-33.33% - var(--spacing-lg)));
  }
}

@media (max-width: 992px) {
  @keyframes hotProductsScroll {
    0% {
      transform: translateX(0);
    }
    100% {
      transform: translateX(calc(-50% - var(--spacing-lg) / 2));
    }
  }
}

@media (max-width: 768px) {
  @keyframes hotProductsScroll {
    0% {
      transform: translateX(0);
    }
    100% {
      transform: translateX(calc(-100% - var(--spacing-lg)));
    }
  }
}

/* Section通用样式 */
.section {
  padding: 60px 0;
}

@media (max-width: 768px) {
  .section {
    padding: 40px 0;
  }
}

.section-subtitle {
  font-size: 12px;
  letter-spacing: 3px;
  color: #18575D;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-dark);
  line-height: 1.3;
}

@media (max-width: 768px) {
  .section-title {
    font-size: 24px;
  }
}

.section-description {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.text-highlight {
  color: #18575D;
}

.bg-dark {
  background-color: var(--primary-color);
  color: white;
}

.text-white {
  color: white !important;
}

.text-white-50 {
  color: rgba(255, 255, 255, 0.5) !important;
}

/* ═════════════════════════════════════════════════ */
/* 9. 间距工具 - mt, mb, p 等 */
/* ═════════════════════════════════════════════════ */

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }
.mt-6 { margin-top: var(--spacing-xxl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }
.mb-6 { margin-bottom: var(--spacing-xxl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }
.p-6 { padding: var(--spacing-xxl); }

/* ═════════════════════════════════════════════════ */
/* 10. 显示工具 - d-none, d-flex, d-grid 等 */
/* ═════════════════════════════════════════════════ */

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

.text-center { text-align: center !important; }
.text-start { text-align: start !important; }
.text-end { text-align: end !important; }

.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }
.flex-column { flex-direction: column !important; }
.flex-row { flex-direction: row !important; }

.align-items-center { align-items: center !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }

/* 宽度和高度 */
.w-100 { width: 100% !important; }
.h-auto { height: auto !important; }

/* 自动间距 */
.mx-auto {
  margin-left: auto !important;
  margin-right: auto !important;
}

.me-3 { margin-right: var(--spacing-md) !important; }
.ms-2 { margin-left: var(--spacing-sm) !important; }
.ms-3 { margin-left: var(--spacing-md) !important; }

/* 图片 */
.img-fluid {
  max-width: 100%;
  height: auto;
  display: block;
}

.position-relative { position: relative !important; }

/* ═════════════════════════════════════════════════ */
/* 11. 响应式隐藏 - 不同屏幕大小的显示/隐藏 */
/* ═════════════════════════════════════════════════ */

/* 大屏幕显示/隐藏 */
.d-lg-none { display: none !important; }
.d-lg-block { display: block !important; }

@media (min-width: 992px) {
  .d-lg-none { display: none !important; }
  .d-lg-block { display: block !important; }
  .d-none.d-lg-block { display: block !important; }
  .text-lg-end { text-align: right !important; }
  .text-lg-start { text-align: left !important; }
}

/* 平板显示/隐藏 */
@media (max-width: 991px) {
  .d-md-none { display: none !important; }
  .d-md-block { display: block !important; }
}

/* 移动设备显示/隐藏 */
@media (max-width: 767px) {
  .d-sm-none { display: none !important; }
  .d-sm-block { display: block !important; }
  .text-center { text-align: center !important; }
  .text-md-start { text-align: center !important; }
  .text-md-end { text-align: center !important; }
  .mt-2.mt-md-0 { margin-top: var(--spacing-sm) !important; }
  .mt-3.mt-lg-0 { margin-top: var(--spacing-md) !important; }
}

/* ═════════════════════════════════════════════════ */
/* 12. 图像样式 */
/* ═════════════════════════════════════════════════ */

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

.img-responsive {
  width: 100%;
  height: auto;
}

.img-rounded {
  border-radius: 8px;
}

.img-circle {
  border-radius: 50%;
}

/* ═════════════════════════════════════════════════ */
/* 13. 表单元素 - input, textarea, select */
/* ═════════════════════════════════════════════════ */

input, textarea, select {
  width: 100%;
  padding: var(--spacing-sm);
  font-size: var(--font-size-base);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  font-family: inherit;
  transition: border-color var(--transition-base);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(247, 141, 167, 0.1);
}

label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--text-dark);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

/* ═════════════════════════════════════════════════ */
/* 14. 实用类 - 文本、颜色、阴影等 */
/* ═════════════════════════════════════════════════ */

.text-primary { color: var(--secondary-color); }
.text-secondary { color: var(--primary-color); }
.text-dark { color: var(--text-dark); }
.text-light { color: var(--text-light); }
.text-muted { color: #999999; }

.bg-primary { background-color: var(--secondary-color); }
.bg-secondary { background-color: var(--primary-color); }
.bg-light { background-color: var(--bg-light); }
.bg-white { background-color: var(--bg-white); }

.border { border: 1px solid var(--border-light); }
.border-top { border-top: 1px solid var(--border-light); }
.border-bottom { border-bottom: 1px solid var(--border-light); }

.rounded { border-radius: 8px; }
.rounded-sm { border-radius: 4px; }
.rounded-lg { border-radius: 12px; }

.shadow { box-shadow: var(--shadow-md); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* ═════════════════════════════════════════════════ */
/* 15. 页脚样式 */
/* ═════════════════════════════════════════════════ */

.footer {
  background-color: var(--primary-color);
  color: white;
  padding: var(--spacing-xxl) var(--spacing-lg);
  margin-top: var(--spacing-xxl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h5 {
  color: white;
  margin-bottom: var(--spacing-md);
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: #b0b0b0;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--secondary-color);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: #b0b0b0;
}

/* ═════════════════════════════════════════════════ */
/* 16. 回到顶部按钮 */
/* ═════════════════════════════════════════════════ */

.back-to-top {
  position: fixed;
  bottom: -60px;
  right: 30px;
  width: 50px;
  height: 50px;
  background-color: var(--secondary-color);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  transition: all var(--transition-base);
  z-index: 999;
}

.back-to-top.show {
  bottom: 30px;
}

.back-to-top:hover {
  background-color: #ff5a7e;
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

/* ═════════════════════════════════════════════════ */
/* 17. 打印样式 */
/* ═════════════════════════════════════════════════ */

@media print {
  .navbar, .footer, .back-to-top {
    display: none;
  }
}

/* ═════════════════════════════════════════════════ */
/* 18. 额外组件样式 */
/* ═════════════════════════════════════════════════ */

/* Hero Section */
.hero-section {
  padding: var(--spacing-xxl) 0;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  min-height: 500px;
  display: flex;
  align-items: center;
}

.hero-content {
  padding: var(--spacing-lg);
}

.hero-subtitle {
  color: var(--secondary-color);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 2px;
  margin-bottom: var(--spacing-sm);
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.hero-description {
  font-size: 1.125rem;
  color: #666;
  margin-bottom: var(--spacing-lg);
}

.video-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--secondary-color);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  text-decoration: none;
}

.video-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 0 20px rgba(247, 141, 167, 0.5);
  color: white;
}

/* Client Logos */
.client-logos {
  padding: var(--spacing-lg) 0;
  overflow: hidden;
}

.client-logos .row {
  display: flex;
  flex-wrap: nowrap;
  transition: transform 0.3s ease;
  width: max-content;
}

.client-logos img {
  filter: grayscale(100%);
  opacity: 0.5;
  transition: all var(--transition-base);
  max-height: 60px;
}

.client-logos img:hover {
  filter: grayscale(0%);
  opacity: 1;
}

/* Stats Badge */
.stats-badge {
  position: absolute;
  bottom: 30px;
  left: 30px;
  background: linear-gradient(135deg, #18575D, #134549);
  color: white;
  padding: var(--spacing-lg);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.stats-badge h3 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0;
  color: white;
}

.stats-badge p {
  font-size: 0.875rem;
  margin-bottom: 0;
  color: white;
}

/* Section Titles */
.section-subtitle {
  color: var(--secondary-color);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 2px;
  margin-bottom: var(--spacing-sm);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.section-description {
  font-size: 1.125rem;
  color: #666;
  margin-bottom: var(--spacing-lg);
}

.text-highlight {
  color: #18575D;
}

/* Feature Info Cards - 青色信息卡片 */
.feature-info-card {
  background: linear-gradient(135deg, #18575D, #134549);
  border-radius: 8px;
  padding: var(--spacing-lg);
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
  box-shadow: 0 4px 15px rgba(24, 87, 93, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-info-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(24, 87, 93, 0.4);
}

.feature-info-icon {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.feature-info-content h5 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: white;
}

.feature-info-content p {
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
}

/* Feature Items - 保留旧样式兼容 */
.feature-item {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.feature-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #18575D, #134549);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.feature-content h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.feature-content p {
  color: #666;
  margin-bottom: 0;
}

/* Equipment Cards */
.equipment-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}

.equipment-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.equipment-card .card-img-top {
  height: 80px;
  padding-top: 35px;
  object-fit: cover;
}

.equipment-card .card-body {
  padding: var(--spacing-lg);
}

.equipment-card .card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.equipment-card .card-text {
  color: #666;
  margin-bottom: var(--spacing-md);
}

.equipment-card .btn-link {
  color: var(--secondary-color);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  transition: gap 0.3s ease;
}

.equipment-card .btn-link:hover {
  gap: 8px;
}

/* Process Steps */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.process-step {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: #f8f9fa;
  border-radius: 8px;
  transition: background 0.3s ease;
}

.process-step:hover {
  background: linear-gradient(135deg, #18575D, #134549);
  color: white;
}

.process-step svg {
  color: var(--secondary-color);
  flex-shrink: 0;
}

.process-step:hover svg {
  color: white;
}

.process-step span {
  font-weight: 500;
}

/* CTA Overlay */
.cta-overlay {
  position: absolute;
  bottom: 30px;
  left: 30px;
  right: 30px;
  background: rgba(255, 255, 255, 0.95);
  padding: var(--spacing-lg);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
}

.cta-overlay h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0;
}

/* CTA Section */
.cta-section {
  padding: var(--spacing-xxl) 0;
  background: var(--primary-color);
}

/* Service Cards */
.service-card {
  padding: var(--spacing-lg);
  background: white;
  border-radius: 8px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #18575D, #134549);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.service-card h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.service-card p {
  color: #666;
  margin-bottom: 0;
}

/* Testimonial Carousel */
.testimonial-carousel-container {
  position: relative;
  padding: 0 60px;
  margin-top: var(--spacing-xl);
}

.testimonial-carousel {
  overflow: hidden;
}

.testimonial-track {
  display: flex;
  gap: var(--spacing-lg);
  transition: transform 0.5s ease;
}

.testimonial-track .testimonial-card {
  min-width: calc((100% - var(--spacing-lg) * 2) / 3);
  flex-shrink: 0;
}

.testimonial-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: white;
  border: 2px solid #e0e0e0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 10;
}

.testimonial-nav:hover {
  background: linear-gradient(135deg, #18575D, #134549);
  border-color: #18575D;
  color: white;
}

.testimonial-prev {
  left: 0;
}

.testimonial-next {
  right: 0;
}

.testimonial-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: var(--spacing-lg);
}

.testimonial-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #e0e0e0;
  cursor: pointer;
  transition: all 0.3s ease;
}

.testimonial-dot.active {
  background: #18575D;
  width: 30px;
  border-radius: 6px;
}

@media (max-width: 992px) {
  .testimonial-track .testimonial-card {
    min-width: calc((100% - var(--spacing-lg)) / 2);
  }
}

@media (max-width: 768px) {
  .testimonial-carousel-container {
    padding: 0 40px;
  }
  
  .testimonial-track .testimonial-card {
    min-width: 100%;
  }
  
  .testimonial-nav {
    width: 40px;
    height: 40px;
  }
}

/* Testimonial Cards */
.testimonial-card {
  background: white;
  padding: var(--spacing-lg);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.quote-icon {
  color: var(--secondary-color);
  opacity: 0.3;
  margin-bottom: var(--spacing-md);
}

.testimonial-text {
  font-style: italic;
  color: #666;
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.author-img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-author h5 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .stats-badge {
    position: static;
    margin-top: var(--spacing-md);
  }

  .cta-overlay {
    position: static;
  }
}

/* ==== 统计数据区域 ==== */
.stats-section {
  padding: var(--spacing-xxl) 0;
  background: linear-gradient(135deg, #18575D, #134549);
  color: white;
}

.stats-item {
  padding: var(--spacing-lg);
}

.stats-number {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: white;
}

.stats-label {
  font-size: 1rem;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.9);
  opacity: 0.9;
}

/* ==== 博客卡片 ==== */
.blog-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

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

.blog-image img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.blog-content {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.blog-title a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

.blog-title a:hover {
  color: var(--secondary-color);
}

.blog-meta {
  display: flex;
  gap: var(--spacing-md);
  font-size: 0.875rem;
  color: #666;
  margin-bottom: var(--spacing-md);
}

.blog-read-more {
  color: var(--secondary-color);
  text-decoration: none;
  font-weight: 600;
  margin-top: auto;
}

.blog-read-more:hover {
  text-decoration: none;
  color: var(--primary-color);
}

/* ==== 联系信息卡片 ==== */
.contact-info-card {
  padding: var(--spacing-xl);
  background: white;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-info-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.contact-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, #18575D, #134549);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  margin: 0 auto var(--spacing-md);
}

.contact-info-card h5 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.contact-info-card p {
  color: #666;
  margin-bottom: 0;
}

/* ==== 联系表单 ==== */
.contact-form .form-label {
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}

.contact-form .form-control {
  padding: 0.75rem 1rem;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  transition: border-color 0.3s ease;
}

.contact-form .form-control:focus {
  border-color: var(--secondary-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(247, 141, 167, 0.1);
}

.contact-form textarea.form-control {
  resize: vertical;
}

.form-check-input:checked {
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
}

/* ==== 地图容器 ==== */
.map-container {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

/* ==== 页脚 CTA ==== */
.footer-cta {
  padding: var(--spacing-xxl) 0;
  background: var(--primary-color);
  color: white;
}

@media (max-width: 768px) {
  .footer-cta {
    padding: var(--spacing-xl) 0;
    text-align: center;
  }
}

.footer-cta h3 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .footer-cta h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
  }
}

.footer-cta .btn-light {
  background: white;
  color: var(--primary-color);
  padding: 0.875rem 2rem;
  font-weight: 600;
  border: none;
}

.footer-cta .btn-light:hover {
  background: linear-gradient(135deg, #18575D, #134549);
  color: white;
  transform: translateY(-2px);
}

/* ==== Newsletter ==== */
.newsletter-section {
  padding: var(--spacing-xxl) 0;
  background: linear-gradient(135deg, #18575D, #134549);
}

.newsletter-content {
  max-width: 800px;
  margin: 0 auto;
}

.newsletter-icon {
  width: 100px;
  height: 100px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.newsletter-section h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  color: white;
  line-height: 1.3;
}

@media (max-width: 768px) {
  .newsletter-section h3 {
    font-size: 1.5rem;
  }
}

.newsletter-form {
  max-width: 600px;
  margin: 0 auto;
}

.newsletter-form .input-group {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  border-radius: 50px;
  overflow: hidden;
}

.newsletter-form .form-control {
  padding: 1rem 1.5rem;
  border: none;
  background: white;
  font-size: 15px;
  border-radius: 50px 0 0 50px;
}

.newsletter-form .btn {
  padding: 1rem 2rem;
  border-radius: 0 50px 50px 0;
  white-space: nowrap;
  font-weight: 600;
  border: none;
}

.newsletter-form .btn-dark {
  background: var(--primary-color);
  color: white;
}

.newsletter-form .btn-dark:hover {
  background: #1a1a1a;
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* ==== 完整页脚 ==== */
.footer {
  padding-top: var(--spacing-xxl);
  padding-bottom: var(--spacing-lg);
  background: var(--primary-color);
  color: #9ca3af;
}

@media (max-width: 768px) {
  .footer {
    padding-top: var(--spacing-xl);
    text-align: center;
  }
}

.footer-description {
  color: #9ca3af;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

/* 社交媒体图标 */
.sigma_sm {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 0.75rem;
}

.sigma_sm li {
  margin: 0;
}

.sigma_sm a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: #9ca3af;
  transition: all 0.3s ease;
  text-decoration: none;
}

.sigma_sm a:hover {
  background: var(--secondary-color);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(24, 87, 93, 0.3);
}

.sigma_sm i {
  font-size: 18px;
}

@media (max-width: 768px) {
  .sigma_sm {
    justify-content: center;
  }
}

.footer-title {
  color: white;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
}

@media (max-width: 768px) {
  .footer-title {
    font-size: 1.1rem;
    margin-top: var(--spacing-lg);
  }
}

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

.footer-links li {
  margin-bottom: 0;
}

.footer-links a {
  color: #9ca3af;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: all 0.3s ease;
  font-size: 15px;
}

.footer-links a:before {
  content: "›";
  margin-right: 0.5rem;
  font-size: 1.5rem;
  transition: margin-right 0.3s ease;
  color: #6b7280;
}

.footer-links a:hover {
  color: var(--secondary-color);
  transform: translateX(5px);
}

.footer-links a:hover:before {
  margin-right: 0.75rem;
  color: var(--secondary-color);
}

/* Contact Info */
.footer-contact {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 1.25rem;
  color: #9ca3af;
  font-size: 15px;
}

.footer-contact li svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--secondary-color);
}

.footer-contact li span {
  line-height: 1.6;
}

.footer-contact a {
  color: #9ca3af;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-contact a:hover {
  color: var(--secondary-color);
  text-decoration: none;
}

@media (max-width: 768px) {
  .footer-contact li {
    justify-content: center;
  }
}

.footer-divider {
  border-color: rgba(255, 255, 255, 0.1);
  margin: var(--spacing-xl) 0;
}

.footer-policy {
  color: #9ca3af;
  text-decoration: none;
}

.footer-policy a {
  color: #9ca3af;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-policy a:hover {
  color: var(--secondary-color);
  text-decoration: none;
}

.footer-bottom p {
  color: #9ca3af;
  font-size: 0.875rem;
}

.footer-bottom a {
  color: #9ca3af;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-bottom a:hover {
  color: var(--secondary-color);
}
.breadcrumb a{
  color:#FFF;
}

/* ==== 产品详情页 ==== */
.product-image-gallery {
  position: sticky;
  top: 100px;
}

.product-main-image {
  background: #f9f9f9;
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1rem;
  position: relative;
}

.product-video-btn {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: rgba(24, 87, 93, 0.9);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 10;
  padding: 12px;
  border-radius: 50%;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-video-btn:hover {
  transform: scale(1.1);
  background: rgba(24, 87, 93, 1);
  box-shadow: 0 8px 30px rgba(24, 87, 93, 0.5);
}

.product-video-btn svg {
  display: block;
  width: 40px;
  height: 40px;
}

.product-video-btn svg circle {
  display: none;
}

.product-video-btn svg path {
  fill: white;
}

.product-main-image img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.product-thumbnail-list {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.thumbnail-nav {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border: none;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  z-index: 1;
}

.thumbnail-nav:hover {
  background: var(--secondary-color);
  color: white;
  box-shadow: 0 4px 12px rgba(24, 87, 93, 0.3);
}

.thumbnail-nav svg {
  width: 20px;
  height: 20px;
}

.thumbnail-scroll {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 0.5rem;
  cursor: grab;
  user-select: none;
  flex: 1;
  scroll-behavior: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.thumbnail-scroll.dragging {
  cursor: grabbing;
  scroll-behavior: auto;
}

.thumbnail-scroll::-webkit-scrollbar {
  display: none;
}

.thumbnail-item {
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.3s ease;
  opacity: 0.6;
  border-radius: 8px;
  width: 100px;
  height: 100px;
  object-fit: cover;
  flex-shrink: 0;
  pointer-events: none;
  -webkit-user-drag: none;
  user-select: none;
}

.thumbnail-item:hover,
.thumbnail-item.active {
  border-color: var(--secondary-color);
  opacity: 1;
}

.product-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 1rem;
}

.product-tags .badge {
  font-size: 0.875rem;
  padding: 0.5rem 1rem;
  font-weight: 500;
}

.product-features ul li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #e0e0e0;
}

.product-features ul li:last-child {
  border-bottom: none;
}

.product-actions {
  margin-top: 2rem;
}

.nav-tabs .nav-link {
  color: var(--text-light);
  border: none;
  border-bottom: 3px solid transparent;
  padding: 1rem 1.5rem;
  font-weight: 600;
}

.nav-tabs .nav-link:hover {
  color: var(--secondary-color);
  border-color: transparent;
}

.nav-tabs .nav-link.active {
  color: var(--secondary-color);
  border-color: var(--secondary-color);
  background: transparent;
}

.product-content,
.product-specs {
  line-height: 1.8;
}

.product-content img {
  max-width: 100%;
  height: auto;
  margin: 1rem 0;
}

@media (max-width: 992px) {
  .product-image-gallery {
    position: relative;
    top: 0;
  }
  
  .product-title {
    font-size: 1.5rem;
  }
}

/* ==== 视频模态框 ==== */
.video-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.video-modal-content {
  position: relative;
  max-width: 90%;
  max-height: 90vh;
}

.video-modal-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: transparent;
  border: none;
  color: white;
  font-size: 40px;
  cursor: pointer;
  line-height: 1;
  transition: color 0.3s ease;
}

.video-modal-close:hover {
  color: var(--secondary-color);
}