/* ========================================
   CSS 变量定义
   ======================================== */
:root {
  /* 主题配色 - 蓝色为主，浅蓝色为辅 */
  --primary-color: #165DFF;        /* 标准蓝色 - 主色调 */
  --primary-dark: #0E42D2;         /* 深蓝色 */
  --primary-light: #4080FF;        /* 亮蓝色 */
  --primary-lighter: #6B9BFF;      /* 更亮蓝色 */
  --secondary-color: #36CFC9;      /* 青色 - 辅助色 */
  --secondary-light: #5FD8D3;      /* 浅青色 */
  --accent-cyan: #7EC2FF;          /* 浅蓝色 - 点缀色 */
  
  /* 中性色 */
  --text-primary: #333333;
  --text-secondary: #666666;
  --text-light: #999999;
  --bg-light: #F5F7FA;
  --bg-white: #FFFFFF;
  --border-color: #E8E8E8;
  
  /* 渐变背景 - 蓝色系 */
  --gradient-banner: linear-gradient(135deg, #165DFF 0%, #36CFC9 100%);
  --gradient-blue: linear-gradient(135deg, #165DFF 0%, #4080FF 100%);
  --gradient-light-blue: linear-gradient(135deg, #4080FF 0%, #6B9BFF 100%);
  
  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(22, 93, 255, 0.08);
  --shadow-md: 0 4px 16px rgba(22, 93, 255, 0.12);
  --shadow-lg: 0 8px 32px rgba(22, 93, 255, 0.16);
  --shadow-hover: 0 12px 48px rgba(22, 93, 255, 0.2);
  
  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-round: 50%;
}

/* ========================================
   设计图样式 - 完整重构
   ======================================== */

/* 导航栏样式 */
.site-header {
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  display: flex;
  align-items: center;
}

.site-logo a {
  display: flex;
  align-items: center;
}

.site-logo img {
  height: 80px;
  width: auto;
}

.main-navigation ul {
  display: flex;
  gap: 40px;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* 隐藏桌面端的汉堡包菜单按钮 */
.menu-toggle {
  display: none;
}

.main-navigation ul li {
  position: relative;
}

/* 为有子菜单的项添加下拉箭头 - 已删除 */
.main-navigation ul li a {
  color: #333;
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  padding: 8px 0;
  transition: color 0.3s ease;
  display: block;
}

.main-navigation ul li a:hover,
.main-navigation ul li.current-menu-item a {
  color: #165DFF;
}

/* 二级菜单样式 - 竖向卡片类型 */
/* 二级菜单样式 - 竖向卡片类型 */
/* .main-navigation ul li.menu-item-has-children 的样式已保留，但删除了相关的下拉箭头样式 */
.main-navigation ul li.menu-item-has-children {
  position: relative;
}

.main-navigation .sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  min-width: 200px;
  padding: 12px 0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  border-radius: 8px;
  list-style: none;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1000;
}

.main-navigation ul li:hover > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-navigation .sub-menu li {
  position: relative;
  width: 100%;
}

.main-navigation .sub-menu li a {
  padding: 12px 20px;
  font-size: 15px;
  color: #333;
  transition: all 0.2s ease;
  display: block;
  border-bottom: 1px solid #f5f5f5;
}

.main-navigation .sub-menu li:last-child a {
  border-bottom: none;
}

.main-navigation .sub-menu li a:hover {
  background: linear-gradient(135deg, rgba(22, 93, 255, 0.05) 0%, rgba(54, 207, 201, 0.05) 100%);
  color: #165DFF;
  padding-left: 24px;
}

/* 二级菜单项当前激活状态 */
.main-navigation .sub-menu li.current-menu-item a {
  color: #165DFF;
  background: rgba(22, 93, 255, 0.08);
}


.header-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.btn {
  padding: 10px 24px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  cursor: pointer;
}

.btn.btn-secondary {
  background: transparent;
  color: #333;
  border: 1px solid #ddd;
}

.btn.btn-secondary:hover {
  border-color: #165DFF;
  color: #165DFF;
}

.btn.btn-primary {
  background: #1976D2;
  color: #fff;
}

.btn.btn-primary:hover {
  background: #1565C0;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(25, 118, 210, 0.3);
}

.btn.btn-secondary:hover {
  border-color: #165DFF;
  color: #165DFF;
}

/* Hero Banner 设计图样式 */
.hero-banner {
  position: relative;
  height: 600px;
  overflow: hidden;
}

.hero-slider {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-slide.active {
  opacity: 1;
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 1200px;
  padding: 0 40px;
  text-align: center;
}

.hero-content h1 {
  font-size: 48px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.3;
  letter-spacing: 2px;
}

.hero-content .highlight {
  color: #7EC2FF;
  font-weight: 800;
}

.hero-content .hero-subtitle-en {
  font-size: 18px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 8px;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.hero-content .subtitle {
  font-size: 18px;
  color: #fff;
  margin-bottom: 32px;
  line-height: 1.6;
  opacity: 0.95;
}

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

.btn-hero {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-hero.btn-primary {
  background: linear-gradient(135deg, #165DFF 0%, #4080FF 100%);
  color: #fff;
  border: none;
  box-shadow: 0 4px 16px rgba(22, 93, 255, 0.3);
}

.btn-hero.btn-primary:hover {
  background: linear-gradient(135deg, #4080FF 0%, #6B9BFF 100%);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(22, 93, 255, 0.4);
}

.btn-hero.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn-hero.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  transform: translateY(-3px);
}

.btn-hero i {
  font-size: 16px;
  transition: transform 0.3s ease;
}

.btn-hero:hover i {
  transform: translateX(6px);
}

/* 轮播图控制按钮 */
.hero-prev,
.hero-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 10;
  outline: none;
}

.hero-prev:focus,
.hero-next:focus {
  outline: none;
}

.hero-prev:hover,
.hero-next:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: #7EC2FF;
  transform: translateY(-50%) scale(1.1);
}

.hero-prev {
  left: 20px;
}

.hero-next {
  right: 20px;
}

.hero-indicators {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.hero-indicators .indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  border: 2px solid rgba(255, 255, 255, 0.6);
  cursor: pointer;
  transition: all 0.3s ease;
}

.hero-indicators .indicator.active {
  background: #7EC2FF;
  border-color: #7EC2FF;
}

/* 核心价值区 - 四个圆形图标 */
.value-cards-section {
  padding: 80px 0;
  background: #fff;
}

.value-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.value-card {
  text-align: center;
  padding: 40px 24px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: all 0.3s ease;
  border: 1px solid rgba(22, 93, 255, 0.05);
}

.value-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: #1976D2;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 36px;
}

.value-card:hover {
  box-shadow: 0 8px 24px rgba(22, 93, 255, 0.12);
  transform: translateY(-4px);
}

.value-card h3 {
  font-size: 18px;
  color: #333;
  margin-bottom: 12px;
  font-weight: 600;
}

.value-desc {
  font-size: 13px;
  color: #999;
  line-height: 1.6;
}

/* 平台介绍区 */
.platform-intro-section {
  padding: 80px 0;
  background: #F5F7FA;
}

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

.section-title-center h2 {
  font-size: 32px;
  font-weight: 700;
  color: #333;
  margin-bottom: 12px;
}

.section-title-center p {
  font-size: 14px;
  color: #999;
}

/* 选项卡按钮 */
.platform-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 40px;
  justify-content: center;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 10px 24px;
  background: #fff;
  border: 1px solid #E8E8E8;
  border-radius: 20px;
  font-size: 14px;
  color: #666;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
}

.tab-btn i {
  font-size: 16px;
}

.tab-btn.active {
  background: #1976D2;
  border-color: #1976D2;
  color: #fff;
  font-weight: 500;
}

.tab-btn:hover:not(.active) {
  border-color: #1976D2;
  color: #1976D2;
}

/* 平台布局 */
.platform-layout {
  display: flex;
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  background: #fff;
  border-radius: 12px;
  padding: 40px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

/* 左侧蓝色导航 */
.platform-sidebar {
  width: 280px;
  flex-shrink: 0;
  background: #1976D2;
  border-radius: 8px;
  padding: 32px 24px;
  color: #fff;
}

.platform-sidebar h3 {
  font-size: 18px;
  margin-bottom: 24px;
  font-weight: 600;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

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

.sidebar-menu li {
  padding: 14px 16px;
  margin-bottom: 4px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
}

.sidebar-menu li.active {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-weight: 500;
}

.sidebar-menu li:hover {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.95);
}

/* 右侧内容区 */
.platform-main {
  flex: 1;
}

.feature-grid-2x2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-box {
  padding: 28px;
  background: #F8F9FA;
  border-radius: 8px;
  border: none;
}

.feature-box h4 {
  font-size: 16px;
  color: #333;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.feature-box h4 i {
  color: #1976D2;
  font-size: 20px;
}

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

.feature-box ul li {
  padding: 8px 0;
  padding-left: 20px;
  position: relative;
  font-size: 13px;
  color: #666;
  line-height: 1.8;
}

.feature-box ul li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: #1976D2;
  font-size: 16px;
  line-height: 1.6;
}

.platform-placeholder {
  text-align: center;
  padding: 60px 20px;
}

.platform-placeholder h3 {
  font-size: 28px;
  color: #333;
  margin-bottom: 16px;
}

.platform-placeholder p {
  font-size: 16px;
  color: #999;
  line-height: 1.6;
}

/* 产品价值区 */
.product-value-section {
  padding: 80px 0;
  background: linear-gradient(180deg, rgb(14, 73, 163) 0%, rgb(62, 158, 238) 100%) !important;
  color: #fff;
}

.product-value-section .section-title-center h2,
.product-value-section .section-title-center p {
  color: #fff;
}

.product-value-section .section-title-center h2 {
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 12px;
}

.product-value-section .section-title-center p {
  font-size: 16px;
  opacity: 0.9;
}

.value-diagram {
  max-width: 800px;
  margin: 60px auto;
  background: rgba(255, 255, 255, 0.1) !important;
  border-radius: 16px;
  padding: 100px 40px;
  text-align: center;
  border: none;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.value-diagram-placeholder {
  color: #fff;
  font-size: 24px;
}

.value-diagram-placeholder i {
  font-size: 80px;
  margin-bottom: 20px;
  opacity: 0.8;
}

.value-buttons-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 50px auto 0;
}

.btn-value {
  padding: 20px 24px;
  background: rgba(255, 255, 255, 0.15) !important;
  border: none !important;
  border-radius: 12px;
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn-value:hover {
  background: rgba(255, 255, 255, 0.25) !important;
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* 六大核心特性 */
.six-features-section {
  padding: 80px 0;
  background: #fff;
}

.features-3x2-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.feature-item {
  text-align: center;
  padding: 32px 24px;
  background: #fff;
  border-radius: 12px;
  transition: all 0.3s ease;
  border: 1px solid rgba(22, 93, 255, 0.08);
}

.feature-icon-circle {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  background: #2988DF;  /* RGB(41, 136, 223) */
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 36px;
}

.feature-item:hover {
  box-shadow: 0 8px 24px rgba(22, 93, 255, 0.1);
  transform: translateY(-4px);
}

.feature-item h3 {
  font-size: 18px;
  color: #333;
  margin-bottom: 16px;
  font-weight: 600;
}

.feature-item p {
  font-size: 14px;
  color: #666;
  line-height: 1.8;
}

/* 标杆合作案例 */
.benchmark-cases-section {
  padding: 80px 0;
  background: #F5F7FA;
}

.benchmark-cases-section .section-title-center {
  margin-bottom: 40px;
}

.benchmark-cases-section .section-title-center h2 {
  font-size: 32px;
  font-weight: 700;
  color: #333;
  margin-bottom: 12px;
}

.benchmark-cases-section .section-title-center p {
  font-size: 14px;
  color: #999;
}

/* 案例选项卡 */
.case-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 40px;
  justify-content: center;
  flex-wrap: wrap;
}

.case-tab-btn {
  padding: 10px 24px;
  background: #F5F7FA;
  border: 1px solid #E8E8E8;
  border-radius: 8px;
  font-size: 14px;
  color: #666;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 400;
}

.case-tab-btn.active {
  background: #fff;
  border-color: #E8E8E8;
  color: #333;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.case-tab-btn:hover:not(.active) {
  background: #fff;
  border-color: #E8E8E8;
  color: #333;
}

.case-content-box {
  background: #fff;
  border-radius: 12px;
  padding: 40px 60px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
}

.case-detail {
  display: none;
  grid-template-columns: 180px 1fr;
  gap: 40px;
  align-items: flex-start;
}

.case-detail.active {
  display: grid;
}

/* 左侧标签区 */
.case-left {
  padding-top: 8px;
}

.case-left h3 {
  font-size: 20px;
  font-weight: 700;
  color: #333;
  margin-bottom: 16px;
}

.case-subtabs {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.case-subtab {
  padding: 10px 16px;
  background: #F5F7FA;
  border: 1px solid #E8E8E8;
  border-radius: 6px;
  font-size: 14px;
  color: #666;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
}

.case-subtab.active {
  background: #fff;
  border-color: #165DFF;
  color: #165DFF;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(22, 93, 255, 0.1);
}

.case-subtab:hover:not(.active) {
  background: #fff;
  border-color: #165DFF;
  color: #165DFF;
}

/* 右侧内容区 */
.case-right {
  padding-top: 8px;
}

/* 右侧内容区 */
.case-right {
  padding-top: 8px;
}

.case-right h4 {
  font-size: 18px;
  font-weight: 600;
  color: #333;
  margin-bottom: 16px;
}

.case-right .case-desc {
  font-size: 14px;
  color: #666;
  line-height: 2;
  margin-bottom: 24px;
}

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

.case-right .case-list li {
  padding: 10px 0;
  padding-left: 28px;
  position: relative;
  font-size: 14px;
  color: #666;
  line-height: 1.8;
}

.case-right .case-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: #165DFF;
  font-size: 18px;
  line-height: 1.6;
}

/* 成功案例 */
.success-cases-section {
  padding: 80px 0;
  background: #fff;
}

.success-cases-section .section-title-center {
  margin-bottom: 40px;
}

.success-cases-section .section-title-center h2 {
  font-size: 32px;
  font-weight: 700;
  color: #333;
  margin-bottom: 12px;
}

.success-cases-section .section-title-center p {
  font-size: 14px;
  color: #999;
}

/* 分类选项卡 */
.case-category-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 48px;
  justify-content: center;
  flex-wrap: wrap;
}

.category-tab-btn {
  padding: 10px 24px;
  background: #fff;
  border: 1px solid #E8E8E8;
  border-radius: 20px;
  font-size: 14px;
  color: #666;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 400;
}

.category-tab-btn.active {
  background: #2988DF;  /* RGB(41, 136, 223) */
  border-color: #2988DF;
  color: #fff;
  font-weight: 500;
}

.category-tab-btn:hover:not(.active) {
  border-color: #165DFF;
  color: #165DFF;
}

/* 案例展示 */
.case-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.case-showcase-left {
  padding-top: 0;
}

.case-showcase-left h3 {
  font-size: 24px;
  font-weight: 700;
  color: #333;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 12px;
}

.case-showcase-left h3::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(135deg, #1E6FFF 0%, #165DFF 100%);
}

.case-showcase-desc {
  font-size: 14px;
  color: #666;
  line-height: 2;
  margin-bottom: 24px;
}

.case-tags {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: transparent;
  border-radius: 4px;
  font-size: 13px;
  color: #666;
  font-weight: 500;
}

.tag i {
  color: #165DFF;
  font-size: 14px;
}

.case-showcase-right {
  background: linear-gradient(135deg, #1E6FFF 0%, #4A8FFF 100%);
  border-radius: 12px;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 80px;
  box-shadow: 0 4px 16px rgba(30, 111, 255, 0.2);
}

/* 综合资讯 */
.comprehensive-news-section {
  padding: 80px 0;
  background: linear-gradient(180deg, #0D4AA4 0%, #1975D1 100%);
}

/* 综合资讯区标题样式 */
.comprehensive-news-section .section-title-center {
  margin-bottom: 40px;
}

.comprehensive-news-section .section-title-center h2 {
  color: #fff;
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 10px;
  text-align: center;
}

.comprehensive-news-section .section-title-center p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  text-align: center;
  letter-spacing: 1px;
}

/* 综合资讯布局 */
.news-layout {
  display: flex;
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

/* 左侧导航 */
.news-sidebar {
  width: 180px;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

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

.news-menu li {
  padding: 14px 16px;
  margin-bottom: 4px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 400;
}

.news-menu li.active {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-weight: 500;
}

.news-menu li:hover {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.95);
}

/* 右侧资讯列表 */
.news-main {
  flex: 1;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.news-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  margin-bottom: 24px;
  padding-bottom: 20px;
}

.news-header h3 {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.news-header p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 13px;
  line-height: 1.8;
}

.news-list {
  margin-bottom: 20px;
}

.news-item {
  padding: 20px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.3);
}

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

.news-item h4 {
  color: #fff;
  font-size: 18px;
  margin-bottom: 8px;
}

.news-item p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 8px;
}

.news-author {
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
  font-style: italic;
  margin-bottom: 8px;
}

.news-date {
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  display: block;
  margin-top: 8px;
}

.news-footer {
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.news-footer p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  line-height: 1.6;
}

/* 选项卡内容 */
.news-tab-content {
  display: none;
  animation: fadeIn 0.3s ease-in-out;
}

.news-tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 底部导航 */
.site-footer {
  background: linear-gradient(180deg, #0A1A2A 0%, #06101A 100%);
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto 40px;
  padding: 0 40px;
}

.footer-section h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 24px;
  font-weight: 600;
}

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

.footer-section ul li {
  margin-bottom: 14px;
}

.footer-section ul li a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s ease;
  display: block;
}

.footer-section ul li a:hover {
  color: #7EC2FF;
}

.footer-section ul li i {
  margin-right: 8px;
  color: #7EC2FF;
}

/* 联系方式特殊样式 */
.contact-info h4 {
  color: #7EC2FF;
  font-size: 18px;
  margin-bottom: 24px;
  font-weight: 600;
}

.contact-info ul li a,
.contact-info ul li span {
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
  display: block;
  margin-bottom: 8px;
}

.contact-info .contact-icon {
  color: #7EC2FF;
  margin-right: 8px;
}

.contact-info ul li a:hover {
  color: #7EC2FF;
}

.contact-info ul li i {
  color: #7EC2FF;
}

.wechat-qr {
  display: inline-block;
}

.wechat-qr img {
  width: 100px;
  height: 100px;
  display: block;
  margin-bottom: 8px;
  border-radius: 4px;
}

.wechat-qr p {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

.privacy-link {
  margin-left: 20px;
}

.privacy-link a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
}

.privacy-link a:hover {
  color: #165DFF;
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .features-3x2-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .value-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 0 20px;
  }
  
  .main-navigation ul {
    gap: 16px;
  }
  
  .hero-content h1 {
    font-size: 36px;
  }
  
  .hero-content .hero-subtitle-en {
    font-size: 16px;
    letter-spacing: 3px;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: 12px;
  }
  
  .btn-hero {
    width: 100%;
    justify-content: center;
  }
  
  .value-cards-grid {
    grid-template-columns: 1fr;
  }
  
  .platform-layout {
    grid-template-columns: 1fr;
  }
  
  .feature-grid-2x2 {
    grid-template-columns: 1fr;
  }
  
  .features-3x2-grid {
    grid-template-columns: 1fr;
  }
  
  .case-detail {
    grid-template-columns: 1fr;
  }
  
  .case-showcase {
    grid-template-columns: 1fr;
  }
  
  .news-layout {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .value-buttons-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .hero-content h1 {
    font-size: 28px;
  }
  
  .section-title-center h2 {
    font-size: 24px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   平板端布局 (768px - 1200px)
   ======================================== */
@media (max-width: 1200px) and (min-width: 769px) {
  /* 导航栏调整 */
  .header-container {
    padding: 0 24px;
  }
  
  .main-navigation ul {
    gap: 24px;
  }
  
  /* Hero Banner 高度调整 */
  .hero-banner {
    height: 500px;
  }
  
  .hero-content h1 {
    font-size: 40px;
  }
  
  .hero-content .hero-subtitle-en {
    font-size: 16px;
    letter-spacing: 6px;
  }
  
  .hero-content .subtitle {
    font-size: 16px;
  }
  
  /* 核心价值卡片 - 4 列变 3 列 */
  .value-cards-section {
    padding: 64px 0;
  }
  
  .value-cards-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 0 24px;
  }
  
  .value-card {
    padding: 32px 24px;
  }
  
  .value-icon {
    width: 72px;
    height: 72px;
    font-size: 32px;
  }
  
  .value-card h3 {
    font-size: 17px;
  }
  
  .value-desc {
    font-size: 13px;
  }
  
  /* 平台介绍区 */
  .platform-intro-section {
    padding: 64px 0;
  }
  
  .section-title-center h2 {
    font-size: 30px;
  }
  
  .platform-tabs {
    gap: 10px;
    margin-bottom: 32px;
  }
  
  .tab-btn {
    padding: 10px 18px;
    font-size: 14px;
  }
  
  /* 平台布局调整 */
  .platform-layout {
    padding: 32px 24px;
    gap: 24px;
  }
  
  .platform-sidebar {
    width: 240px;
    padding: 28px 20px;
  }
  
  .sidebar-menu li {
    padding: 12px 14px;
    font-size: 14px;
  }
  
  .feature-grid-2x2 {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .feature-box {
    padding: 28px 20px;
  }
  
  .feature-box h4 {
    font-size: 16px;
  }
  
  .feature-box ul li {
    font-size: 13px;
  }
  
  /* 产品价值区 */
  .product-value-section {
    padding: 64px 0;
  }
  
  .value-diagram {
    padding: 48px 32px;
  }
  
  .value-buttons-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 0 24px;
  }
  
  .btn-value {
    padding: 16px 20px;
    font-size: 14px;
  }
  
  /* 六大核心特性 */
  .six-features-section {
    padding: 64px 0;
  }
  
  .features-3x2-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    padding: 0 24px;
  }
  
  .feature-item {
    padding: 32px 24px;
  }
  
  .feature-icon-circle {
    width: 68px;
    height: 68px;
    font-size: 30px;
  }
  
  .feature-item h3 {
    font-size: 17px;
  }
  
  .feature-item p {
    font-size: 14px;
  }
  
  /* 标杆案例区 */
  .case-showcase-section {
    padding: 64px 0;
  }
  
  .case-showcase {
    gap: 20px;
    padding: 0 24px;
  }
  
  .case-card {
    padding: 28px 24px;
  }
  
  /* 成功案例 */
  .success-cases-section {
    padding: 64px 0;
  }
  
  .case-filters {
    gap: 10px;
    padding: 0 24px;
  }
  
  .filter-btn {
    padding: 10px 18px;
    font-size: 14px;
  }
  
  .case-grid {
    gap: 20px;
    padding: 0 24px;
  }
  
  /* 综合资讯 */
  .news-section {
    padding: 64px 0;
  }
  
  .news-layout {
    gap: 20px;
    padding: 0 24px;
  }
  
  .news-sidebar {
    width: 240px;
    padding: 28px 20px;
  }
  
  .news-menu li {
    padding: 12px 14px;
    font-size: 14px;
  }
  
  .news-content {
    padding: 28px 24px;
  }
  
  .news-item {
    padding: 24px 0;
  }
  
  .news-item h3 {
    font-size: 16px;
  }
  
  .news-item p {
    font-size: 14px;
  }
  
  /* 页脚 */
  .footer-content {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    padding: 0 24px;
  }
}

/* ========================================
   移动端布局 (最大 768px)
   ======================================== */
@media (max-width: 768px) {
  /* --- 导航栏 --- */
  .header-container {
    padding: 0 16px;
    height: 70px;
  }
  
  .site-logo img {
    height: 56px;
  }
  
  /* 汉堡菜单按钮 */
  .menu-toggle {
    display: block;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
  }
  
  .menu-toggle span {
    display: block;
    width: 24px;
    height: 3px;
    background: #333;
    margin: 5px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
  }
  
  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }
  
  /* 移动端导航菜单 */
  .main-navigation {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: #fff;
    transition: left 0.3s ease;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    overflow-y: auto;
  }
  
  .main-navigation.active {
    left: 0;
  }
  
  .main-navigation ul {
    flex-direction: column;
    gap: 0;
    padding: 20px;
  }
  
  .main-navigation ul li {
    border-bottom: 1px solid #f0f0f0;
  }
  
  .main-navigation ul li a {
    padding: 16px 12px;
    font-size: 16px;
    display: block;
  }
  
  /* 移动端二级菜单样式 */
  .main-navigation .sub-menu {
    position: static;
    box-shadow: none;
    padding-left: 20px;
    background: #f9f9f9;
    visibility: visible;
    opacity: 1;
    transform: none;
  }
  
  .main-navigation .sub-menu li a {
    padding: 12px 16px;
    font-size: 15px;
    border-bottom: 1px solid #eaeaea;
  }
  
  .main-navigation .sub-menu li a:hover {
    background: #f0f0f0;
    padding-left: 20px;
  }
  
  .header-actions {
    gap: 8px;
  }
  
  .btn {
    padding: 8px 16px;
    font-size: 13px;
  }
  
  /* --- Hero Banner --- */
  .hero-banner {
    height: 400px;
  }
  
  .hero-content {
    padding: 0 20px;
  }
  
  .hero-content h1 {
    font-size: 26px;
    margin-bottom: 10px;
  }
  
  .hero-content .hero-subtitle-en {
    font-size: 12px;
    letter-spacing: 3px;
  }
  
  .hero-content .subtitle {
    font-size: 14px;
    margin-bottom: 20px;
    line-height: 1.6;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: 12px;
    width: 100%;
    padding: 0 20px;
  }
  
  .btn-hero {
    width: 100%;
    justify-content: center;
    padding: 12px 24px;
    font-size: 14px;
  }
  
  /* 轮播图指示器 */
  .hero-indicators {
    bottom: 20px;
  }
  
  .hero-indicators .indicator {
    width: 8px;
    height: 8px;
  }
  
  /* --- 核心价值区 --- */
  .value-cards-section {
    padding: 48px 0;
  }
  
  .value-cards-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 0 20px;
  }
  
  .value-card {
    padding: 28px 20px;
  }
  
  .value-icon {
    width: 64px;
    height: 64px;
    font-size: 28px;
    margin-bottom: 16px;
  }
  
  .value-card h3 {
    font-size: 16px;
    margin-bottom: 8px;
  }
  
  .value-desc {
    font-size: 13px;
    line-height: 1.6;
  }
  
  /* --- 平台介绍区 --- */
  .platform-intro-section {
    padding: 48px 0;
  }
  
  .section-title-center h2 {
    font-size: 24px;
    margin-bottom: 12px;
  }
  
  .section-title-center p {
    font-size: 13px;
    margin-bottom: 24px;
  }
  
  .platform-tabs {
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
    padding: 0 20px;
  }
  
  .tab-btn {
    padding: 8px 16px;
    font-size: 13px;
    border-radius: 20px;
  }
  
  /* 平台布局改为垂直排列 */
  .platform-layout {
    flex-direction: column;
    padding: 24px 20px;
    gap: 24px;
  }
  
  .platform-sidebar {
    width: 100%;
    padding: 24px 20px;
    border-radius: 8px;
  }
  
  .platform-sidebar h3 {
    font-size: 16px;
    margin-bottom: 16px;
    padding-bottom: 12px;
  }
  
  .sidebar-menu {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  
  .sidebar-menu li {
    flex: 1;
    min-width: 100px;
    padding: 12px 14px;
    font-size: 13px;
    border-radius: 6px;
    margin-bottom: 0;
  }
  
  .platform-main {
    width: 100%;
  }
  
  .feature-grid-2x2 {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .feature-box {
    padding: 24px 20px;
    border-radius: 8px;
  }
  
  .feature-box h4 {
    font-size: 15px;
    margin-bottom: 12px;
  }
  
  .feature-box ul li {
    font-size: 13px;
    line-height: 1.8;
  }
  
  /* --- 产品价值区 --- */
  .product-value-section {
    padding: 48px 0;
  }
  
  .section-title-center h2 {
    font-size: 24px;
  }
  
  .section-title-center p {
    font-size: 13px;
  }
  
  .value-diagram {
    padding: 32px 20px;
    margin: 24px auto;
  }
  
  .value-diagram-placeholder i {
    font-size: 56px;
  }
  
  .value-buttons-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 0 20px;
  }
  
  .btn-value {
    padding: 14px 18px;
    font-size: 14px;
    border-radius: 6px;
  }
  
  /* --- 六大核心特性 --- */
  .six-features-section {
    padding: 48px 0;
  }
  
  .section-title-center h2 {
    font-size: 24px;
  }
  
  .section-title-center p {
    font-size: 13px;
  }
  
  .features-3x2-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 0 20px;
  }
  
  .feature-item {
    padding: 28px 20px;
    border-radius: 8px;
  }
  
  .feature-icon-circle {
    width: 64px;
    height: 64px;
    font-size: 28px;
    margin-bottom: 16px;
  }
  
  .feature-item h3 {
    font-size: 16px;
    margin-bottom: 10px;
  }
  
  .feature-item p {
    font-size: 13px;
    line-height: 1.7;
  }
  
  /* --- 标杆案例展示 --- */
  .case-showcase-section {
    padding: 48px 0;
  }
  
  .section-title-center h2 {
    font-size: 24px;
  }
  
  .section-title-center p {
    font-size: 13px;
  }
  
  .case-showcase {
    grid-template-columns: 1fr;
    padding: 0 20px;
    gap: 16px;
  }
  
  .case-card {
    padding: 24px 20px;
    border-radius: 8px;
  }
  
  .case-card h3 {
    font-size: 16px;
    margin-bottom: 10px;
  }
  
  .case-card p {
    font-size: 13px;
    line-height: 1.7;
  }
  
  /* --- 成功案例 --- */
  .success-cases-section {
    padding: 48px 0;
  }
  
  .section-title-center h2 {
    font-size: 24px;
  }
  
  .section-title-center p {
    font-size: 13px;
  }
  
  .case-filters {
    gap: 8px;
    flex-wrap: wrap;
    padding: 0 20px;
    margin-bottom: 24px;
  }
  
  .filter-btn {
    padding: 8px 16px;
    font-size: 13px;
    border-radius: 4px;
  }
  
  .case-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 0 20px;
  }
  
  .case-item {
    padding: 24px 20px;
    border-radius: 8px;
  }
  
  /* --- 综合资讯 --- */
  .news-section {
    padding: 48px 0;
  }
  
  .section-title-center h2 {
    font-size: 24px;
  }
  
  .section-title-center p {
    font-size: 13px;
  }
  
  .news-layout {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 0 20px;
  }
  
  .news-sidebar {
    width: 100%;
    padding: 24px 20px;
    border-radius: 8px;
  }
  
  .news-sidebar h3 {
    font-size: 16px;
    margin-bottom: 16px;
  }
  
  .news-menu {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  
  .news-menu li {
    flex: 1;
    min-width: 80px;
    padding: 12px 14px;
    font-size: 13px;
    border-radius: 6px;
    text-align: center;
  }
  
  .news-content {
    width: 100%;
    padding: 24px 20px;
    border-radius: 8px;
  }
  
  .news-item {
    padding: 20px 0;
  }
  
  .news-item h3 {
    font-size: 15px;
    margin-bottom: 8px;
  }
  
  .news-item p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 8px;
  }

  .news-author {
    color: rgba(255, 255, 255, 0.85);
    font-size: 13px;
    font-style: italic;
    margin-bottom: 8px;
  }

  .news-date {
    color: rgba(255, 255, 255, 0.7);
    font-size: 12px;
    display: block;
    margin-top: 8px;
  }
  
  /* --- 页脚 --- */
  .site-footer {
    padding: 32px 0;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 0 20px;
  }
  
  .footer-column h4 {
    font-size: 15px;
    margin-bottom: 12px;
  }
  
  .footer-column ul li {
    font-size: 13px;
    margin-bottom: 8px;
  }
  
  .footer-column p {
    font-size: 13px;
    line-height: 1.8;
  }
  
  .footer-social {
    justify-content: flex-start;
    gap: 12px;
  }
  
  .social-icon {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }
  
  .qr-code {
    text-align: center;
  }
  
  .qr-image {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 10px;
    border: 2px solid rgba(255,255,255,0.2);
    transition: all 0.3s;
  }
  
  .qr-image:hover {
    transform: scale(1.05);
    border-color: rgba(255,255,255,0.4);
  }
  
  .qr-code p {
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
  }
  
  .qr-code p .fa-weixin {
    font-size: 16px;
    color: #07c160;
  }
  
  .footer-bottom {
    margin-top: 24px;
    padding-top: 20px;
    font-size: 12px;
    text-align: center;
  }
}

/* ========================================
   小屏手机布局 (最大 576px)
   ======================================== */
@media (max-width: 576px) {
  /* 导航栏进一步缩小 */
  .header-container {
    padding: 0 12px;
    height: 64px;
  }
  
  .site-logo img {
    height: 48px;
  }
  
  /* Hero Banner */
  .hero-banner {
    height: 350px;
  }
  
  .hero-content h1 {
    font-size: 22px;
  }
  
  .hero-content .hero-subtitle-en {
    font-size: 11px;
    letter-spacing: 2px;
  }
  
  .hero-content .subtitle {
    font-size: 13px;
  }
  
  /* 核心价值卡片 */
  .value-cards-section {
    padding: 40px 0;
  }
  
  .value-cards-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 0 16px;
  }
  
  .value-card {
    padding: 24px 16px;
  }
  
  .value-icon {
    width: 56px;
    height: 56px;
    font-size: 24px;
  }
  
  .value-card h3 {
    font-size: 15px;
  }
  
  .value-desc {
    font-size: 12px;
  }
  
  /* 标题字体缩小 */
  .section-title-center h2 {
    font-size: 22px;
  }
  
  .section-title-center p {
    font-size: 12px;
  }
  
  /* 平台介绍区 */
  .platform-intro-section {
    padding: 40px 0;
  }
  
  .platform-tabs {
    gap: 6px;
    padding: 0 16px;
  }
  
  .tab-btn {
    padding: 7px 14px;
    font-size: 12px;
  }
  
  .platform-layout {
    padding: 20px 16px;
  }
  
  .sidebar-menu {
    gap: 6px;
  }
  
  .sidebar-menu li {
    min-width: 90px;
    padding: 10px 12px;
    font-size: 12px;
  }
  
  .feature-box {
    padding: 20px 16px;
  }
  
  .feature-box h4 {
    font-size: 14px;
  }
  
  .feature-box ul li {
    font-size: 12px;
  }
  
  /* 产品价值区 */
  .product-value-section {
    padding: 40px 0;
  }
  
  .value-diagram {
    padding: 24px 16px;
  }
  
  .value-buttons-grid {
    padding: 0 16px;
  }
  
  .btn-value {
    padding: 12px 16px;
    font-size: 13px;
  }
  
  /* 六大核心特性 */
  .six-features-section {
    padding: 40px 0;
  }
  
  .features-3x2-grid {
    padding: 0 16px;
  }
  
  .feature-item {
    padding: 24px 16px;
  }
  
  .feature-icon-circle {
    width: 56px;
    height: 56px;
    font-size: 24px;
  }
  
  .feature-item h3 {
    font-size: 15px;
  }
  
  .feature-item p {
    font-size: 12px;
  }
  
  /* 案例展示 */
  .case-showcase-section {
    padding: 40px 0;
  }
  
  .case-showcase {
    padding: 0 16px;
  }
  
  .case-card {
    padding: 20px 16px;
  }
  
  .success-cases-section {
    padding: 40px 0;
  }
  
  .case-filters {
    padding: 0 16px;
  }
  
  .filter-btn {
    padding: 7px 14px;
    font-size: 12px;
  }
  
  .case-grid {
    padding: 0 16px;
  }
  
  .case-item {
    padding: 20px 16px;
  }
  
  /* 新闻资讯 */
  .news-section {
    padding: 40px 0;
  }
  
  .news-layout {
    padding: 0 16px;
  }
  
  .news-sidebar {
    padding: 20px 16px;
  }
  
  .news-menu li {
    min-width: 70px;
    padding: 10px 12px;
    font-size: 12px;
  }
  
  .news-content {
    padding: 20px 16px;
  }
  
  .news-item {
    padding: 16px 0;
  }
  
  .news-item h3 {
    font-size: 14px;
  }
  
  .news-item p {
    font-size: 12px;
  }
  
  /* 页脚 */
  .site-footer {
    padding: 28px 0;
  }
  
  .footer-content {
    padding: 0 16px;
  }
  
  .footer-column h4 {
    font-size: 14px;
  }
  
  .footer-column ul li {
    font-size: 12px;
  }
  
  .footer-column p {
    font-size: 12px;
  }
  
  .footer-social {
    gap: 10px;
  }
  
  .social-icon {
    width: 30px;
    height: 30px;
    font-size: 13px;
  }
  
  .qr-code {
    text-align: center;
  }
  
  .qr-image {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 10px;
    border: 2px solid rgba(255,255,255,0.2);
    transition: all 0.3s;
  }
  
  .qr-image:hover {
    transform: scale(1.05);
    border-color: rgba(255,255,255,0.4);
  }
  
  .qr-code p {
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
  }
  
  .qr-code p .fa-weixin {
    font-size: 16px;
    color: #07c160;
  }
  
  .footer-bottom {
    font-size: 11px;
  }
}

/* ========================================
   横屏模式优化
   ======================================== */
@media (max-height: 500px) and (orientation: landscape) {
  .hero-banner {
    height: 100vh;
    min-height: 400px;
  }
  
  .hero-content h1 {
    font-size: 26px;
  }
  
  .main-navigation {
    top: 60px;
    height: calc(100vh - 60px);
  }
}

/* ========================================
   触摸设备优化
   ======================================== */
@media (hover: none) and (pointer: coarse) {
  /* 增大触摸目标 */
  .btn,
  .btn-hero,
  .tab-btn,
  .sidebar-menu li,
  .news-menu li,
  .filter-btn {
    min-height: 44px;
  }
  
  /* 移除悬停效果，改用点击效果 */
  .value-card:hover,
  .feature-card:hover,
  .solution-card:hover,
  .case-card:hover {
    transform: none;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  }
  
  /* 禁用纯悬停动画 */
  .animate-on-scroll {
    animation: none !important;
  }
}