/* 桐果云官网 - 主页样式文件 */
/* 基于设计方案.md中的首页设计 */

/* ===== 2. 首页轮播区域 ===== */
.hero-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
  height: 80vh; /* 设置固定高度 */
  min-height: 600px; /* 最小高度确保内容可见 */
}

.carousel-container {
  position: relative;
  width: 100%;
  height: 100%; /* 确保容器填充父元素高度 */
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex; /* 始终使用 flex 布局 */
  opacity: 0;
  z-index: 1;
  pointer-events: none;
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 0.5s ease;
  /* 移除默认的 transform: translateX(100%); */
}

.carousel-slide.active {
  opacity: 1;
  z-index: 2;
  pointer-events: auto;
  transform: translateX(0);
}

.carousel-slide.prev {
  transform: translateX(-100%);
  opacity: 0;
}

.carousel-slide.next {
  transform: translateX(100%);
  opacity: 0;
}

/* 当同时有next和active类时，确保active的transform优先级更高 */
.carousel-slide.next.active {
  transform: translateX(0);
  opacity: 1;
}

/* 当同时有prev和active类时，确保active的transform优先级更高 */
.carousel-slide.prev.active {
  transform: translateX(0);
  opacity: 1;
}

/* 确保第一张幻灯片在JS加载前就可见 */
.carousel-slide:first-child {
  opacity: 1;
  z-index: 2;
}

/* 首页第一屏整体包装 */
.first-screen-wrapper {
  position: relative;
  width: 100%;
}

/* ===== 3. 首页英雄区域 ===== */
.hero-section {
  min-height: 80vh;
  display: flex;
  align-items: center;
  background-color: var(--white);
  padding-top: 80px;
  position: relative;
  overflow: hidden;
  height: 100%; /* 确保hero-section填充父容器 */
  width: 100%; /* 确保宽度填充 */
}

.hero-background {
  position: absolute;
  top: 0;
  right: 0;
  width: 40%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 167, 243, 0.05) 0%, rgba(0, 149, 224, 0.05) 100%);
  clip-path: polygon(30% 0%, 100% 0%, 100% 100%, 0% 100%);
}

/* 第一屏轮播背景 - 使用蓝色渐变背景 */
.carousel-slide:first-child .hero-background {
  /* 使用蓝色渐变背景 */
  background: linear-gradient(135deg, rgba(0, 167, 243, 0.05) 0%, rgba(0, 149, 224, 0.05) 100%);
  clip-path: polygon(30% 0%, 100% 0%, 100% 100%, 0% 100%);
  display: block;
  width: 40%;
  height: 100%;
  right: 0;
}

/* 第二屏轮播背景 - 使用橙色渐变背景 */
.carousel-slide:nth-child(2) .hero-background {
  background: linear-gradient(135deg, rgba(255, 99, 60, 0.05) 0%, rgba(255, 77, 46, 0.05) 100%);
  clip-path: polygon(30% 0%, 100% 0%, 100% 100%, 0% 100%);
  display: block;
  width: 40%;
  height: 100%;
  right: 0;
}

/* 第三屏轮播背景 - 使用绿色渐变背景 */
.carousel-slide:nth-child(3) .hero-background {
  background: linear-gradient(135deg, rgba(40, 167, 69, 0.05) 0%, rgba(30, 126, 52, 0.05) 100%);
  clip-path: polygon(30% 0%, 100% 0%, 100% 100%, 0% 100%);
  display: block;
  width: 40%;
  height: 100%;
  right: 0;
}

/* 第一屏内容位置 - 与其他两屏相同 */
.carousel-slide:first-child .hero-content {
  max-width: 600px;
  margin-left: 0;
}

/* 调整第二屏和第三屏内容位置，与第一屏相同 */
.carousel-slide:nth-child(2) .hero-content,
.carousel-slide:nth-child(3) .hero-content {
  max-width: 600px;
  margin-left: 0;
}

/* 响应式调整 */
@media (max-width: 1200px) {
  .carousel-slide:first-child .hero-content,
  .carousel-slide:nth-child(2) .hero-content,
  .carousel-slide:nth-child(3) .hero-content {
    max-width: 500px;
  }
}

@media (max-width: 992px) {
  .carousel-slide:first-child .hero-content,
  .carousel-slide:nth-child(2) .hero-content,
  .carousel-slide:nth-child(3) .hero-content {
    max-width: 450px;
    margin-left: 5%;
  }
}

@media (max-width: 768px) {
  .carousel-slide:first-child .hero-foreground {
    display: none; /* 移动端隐藏前景图片 */
  }
  
  .carousel-slide:first-child .hero-content,
  .carousel-slide:nth-child(2) .hero-content,
  .carousel-slide:nth-child(3) .hero-content {
    max-width: 100%;
    margin: 0 auto;
    text-align: center;
    padding: 0 1rem;
  }
  
  .carousel-slide:first-child .hero-background {
    background: url('../assets/images/banner/01.jpg') no-repeat center center;
    background-size: cover;
    clip-path: none;
    width: 100%;
    display: block; /* 移动端显示背景图片 */
  }
  
  /* 移动端第二屏和第三屏背景处理 */
  .carousel-slide:nth-child(2) .hero-background,
  .carousel-slide:nth-child(3) .hero-background {
    clip-path: none;
    width: 100%;
    background-size: cover;
  }
}

@keyframes pulse {
  0% {
    opacity: 0.2;
    transform: scale(1);
  }
  100% {
    opacity: 0.4;
    transform: scale(1.05);
  }
}

@keyframes float {
  0% {
    background-position: 0 0, 0 0, 0 0, 0 0, 0 0;
  }
  100% {
    background-position: 100px 100px, 120px 120px, 150px 150px, 130px 130px, 110px 110px;
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}


.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--dark);
}

.hero-subtitle {
  font-size: var(--font-size-2xl);
  color: var(--gray-600);
  margin-bottom: 2rem;
  line-height: 1.6;
}

/* 电脑端标题和副标题不换行 */
@media (min-width: 992px) {
  .hero-title {
    white-space: nowrap;
  }
  
  .hero-subtitle {
    white-space: nowrap;
  }
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ===== 4. 价值主张区域 ===== */
.values-section {
  padding: 5rem 0;
  background-color: var(--light-gray);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--dark);
  position: relative;
  padding-bottom: 1rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  text-align: center;
  color: var(--gray-600);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  margin-top: 3rem;
}

.value-card {
  text-align: center;
  padding: 2.5rem 2rem;
  border-radius: var(--border-radius-lg);
  background-color: var(--white);
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border-top: 4px solid transparent;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.value-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-top-color: var(--primary-color);
}

.value-card:nth-child(1):hover {
  border-top-color: #00a7f3;
}

.value-card:nth-child(2):hover {
  border-top-color: #ff633c;
}

.value-card:nth-child(3):hover {
  border-top-color: #28a745;
}

.value-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 1.25rem;
  background: transparent;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-500);
  font-size: 1.1rem;
  position: relative;
  z-index: 1;
  transition: all var(--transition);
}

.value-icon::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.05);
  border-radius: 50%;
  z-index: -1;
  transition: all var(--transition);
}

.value-card:hover .value-icon {
  color: var(--white);
  transform: scale(1.1);
}

.value-card:hover .value-icon::before {
  background: var(--primary-color);
}

.value-card:nth-child(1):hover .value-icon::before {
  background: #00a7f3;
}

.value-card:nth-child(2):hover .value-icon::before {
  background: #ff633c;
}

.value-card:nth-child(3):hover .value-icon::before {
  background: #28a745;
}

.value-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--dark);
  position: relative;
  padding-bottom: 0.75rem;
  width: 100%;
}

.value-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gray-300);
  border-radius: 1.5px;
  transition: all var(--transition);
}

.value-card:hover .value-title::after {
  width: 80px;
  height: 3px;
  background: var(--primary-color);
}

.value-card:nth-child(1):hover .value-title::after {
  background: #00a7f3;
}

.value-card:nth-child(2):hover .value-title::after {
  background: #ff633c;
}

.value-card:nth-child(3):hover .value-title::after {
  background: #28a745;
}

.value-card:nth-child(1) .value-title {
  color: #0066cc;
}

.value-card:nth-child(2) .value-title {
  color: #cc3300;
}

.value-card:nth-child(3) .value-title {
  color: #1e7e34;
}

.value-description {
  color: var(--gray-600);
  line-height: 1.8;
  font-size: var(--font-size-base);
  margin-top: 1rem;
  text-align: left;
  position: relative;
  padding-left: 1.5rem;
  flex-grow: 1;
}

.value-description::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--gray-400);
  font-weight: bold;
  transition: all var(--transition);
}

.value-card:hover .value-description::before {
  color: var(--primary-color);
  transform: translateX(3px);
}

.value-card:nth-child(1):hover .value-description::before {
  color: #00a7f3;
}

.value-card:nth-child(2):hover .value-description::before {
  color: #ff633c;
}

.value-card:nth-child(3):hover .value-description::before {
  color: #28a745;
}

/* 添加卡片背景装饰 */
.value-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent 0%, rgba(0, 167, 243, 0.1) 50%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition);
}

.value-card:hover::before {
  opacity: 1;
}

.value-card:nth-child(1)::before {
  background: linear-gradient(90deg, transparent 0%, rgba(0, 167, 243, 0.2) 50%, transparent 100%);
}

.value-card:nth-child(2)::before {
  background: linear-gradient(90deg, transparent 0%, rgba(255, 99, 60, 0.2) 50%, transparent 100%);
}

.value-card:nth-child(3)::before {
  background: linear-gradient(90deg, transparent 0%, rgba(40, 167, 69, 0.2) 50%, transparent 100%);
}

/* ===== 5. 平台能力区域 ===== */
.capabilities-section {
  padding: 5rem 0;
  background-color: var(--white);
}

/* Tab切换容器 */
.capabilities-tabs {
  margin-top: 3rem;
}

/* Tab导航 */
.tabs-nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 1rem 2rem;
  background-color: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-lg);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--gray-600);
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tab-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.tab-btn.active {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--white);
  box-shadow: var(--shadow);
}

.tab-btn i {
  font-size: 1.25rem;
}

/* Tab内容 */
.tabs-content {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.tab-pane {
  display: none;
  padding: 3rem;
}

.tab-pane.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

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

/* 能力布局 */
.capability-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.capability-left {
  background-color: var(--light-gray);
  border-radius: var(--border-radius-lg);

  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.capability-right {
  padding: 1rem;
}

.capability-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.capability-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--dark);
}

.capability-subtitle {
  color: var(--gray-600);
  font-size: var(--font-size-lg);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.capability-right p {
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.capability-features {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

.capability-features li {
  padding: 0.5rem 0;
  color: var(--gray-600);
  position: relative;
  padding-left: 1.5rem;
}

.capability-features li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

.capability-demo {
  width: 100%;
  max-width: 500px;
}

.ai-demo-placeholder,
.modeling-demo-placeholder,
.governance-demo-placeholder,
.service-demo-placeholder {
  background-color: var(--white);
  border-radius: 8px;
  padding: 1.5rem;
  width: 100%;
}

.ai-avatar {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  margin-right: 1rem;
}

.ai-conversation {
  margin-top: 1rem;
}

.user-message {
  background: #e3f2fd;
  padding: 0.75rem;
  border-radius: 12px 12px 12px 0;
  margin-bottom: 1rem;
  max-width: 80%;
}

.ai-response {
  background: #f5f5f5;
  padding: 0.75rem;
  border-radius: 12px 12px 0 12px;
  margin-left: auto;
  max-width: 80%;
}

.chart-placeholder {
  height: 100px;
  background: linear-gradient(90deg, #00a7f3 30%, #0095e0 50%, #0084cc 70%);
  border-radius: 4px;
  margin-top: 0.5rem;
}

.canvas-placeholder {
  height: 200px;
  background: white;
  border: 2px dashed #ddd;
  border-radius: 4px;
  position: relative;
}

.node {
  position: absolute;
  top: 20%;
  width: 80px;
  height: 40px;
  background: #00a7f3;
  color: white;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

.node:nth-child(1) {
  left: 10%;
  background: #00a7f3;
}

.node:nth-child(2) {
  left: 40%;
  background: #ff633c;
}

.node:nth-child(3) {
  left: 70%;
  background: #28a745;
}

.connection {
  position: absolute;
  top: 40%;
  width: 20%;
  height: 2px;
  background: #00a7f3;
}

.connection:nth-child(4) {
  left: 20%;
}

.connection:nth-child(5) {
  left: 50%;
  background: #ff633c;
}

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

.text-gray {
  color: var(--gray-600);
}

/* 响应式设计 */
@media (max-width: 992px) {
  .capability-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .capability-left {
    min-height: 300px;
  }
}

@media (max-width: 768px) {
  .tabs-nav {
    flex-direction: column;
    align-items: center;
  }
  
  .tab-btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }
  
  .tab-pane {
    padding: 2rem;
  }
}

@media (max-width: 576px) {
  .tab-pane {
    padding: 1.5rem;
  }
  
  .capability-left {
    min-height: 250px;
    padding: 1.5rem;
  }
}

/* ===== 6. 行业解决方案区域 ===== */
.solutions-section {
  padding: 5rem 0;
  background-color: var(--light-gray);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.solution-card {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;

  /* 关键点 */
  border: 2px solid transparent;
  transition:
    transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 0.35s cubic-bezier(0.4, 0, 0.2, 1),
    border-color 0.25s ease;
}

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


.solution-icon {
  width: 60px;
  height: 60px;
  background-color: rgba(0, 167, 243, 0.1);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--primary-color);
  font-size: 1.5rem;
}

.solution-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--dark);
}

.solution-pain {
  font-style: italic;
  color: var(--gray-600);
  padding: 0.75rem;
  background-color: var(--light-gray);
  border-left: 4px solid var(--secondary-color);
  margin: 1rem 0;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.solution-features {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
}

.solution-features li {
  padding: 0.25rem 0;
  color: var(--gray-600);
  position: relative;
  padding-left: 1.25rem;
}

.solution-features li:before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--primary-color);
}

.solution-metrics {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--gray-200);
}

.metric-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary-color);
}

.metric-label {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
}

/* ===== 7. 典型客户区域 ===== */
.clients-section {
  padding: 5rem 0;
  background-color: var(--white);
  overflow: hidden;
}

.clients-header {
  text-align: center;
  margin-bottom: 3rem;
}

.clients-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--dark);
  position: relative;
  padding-bottom: 1rem;
}

.clients-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.clients-subtitle {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.clients-category {
  margin-bottom: 4rem;
}

.category-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.category-title i {
  color: var(--primary-color);
  font-size: 1.25rem;
}

.client-logos-container {
  position: relative;
  overflow: hidden;
  padding: 1rem 0;
}

.client-logos-track {
  display: flex;
  gap: 2rem;
  /* flex-wrap: wrap; */
  align-content: flex-start;
  width: 100%; /* 使用100%宽度确保容器宽度 */
  position: relative; /* 为动画定位 */
  /* animation: scroll-left 30s linear infinite; 添加CSS动画作为备用 */
}

.client-logo {
  flex: 0 0 auto;
  width: 180px;
  height: 80px;
  background-color: var(--light-gray);
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  margin-bottom: 1rem; /* 添加底部间距，确保2行布局清晰 */
}

.client-logo::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0, 167, 243, 0.05) 0%, rgba(0, 149, 224, 0.05) 100%);
  opacity: 0;
  transition: opacity var(--transition);
}

.client-logo:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  background-color: var(--white);
}

.client-logo:hover::before {
  opacity: 1;
}

.client-logo i {
  font-size: 2.5rem;
  color: var(--gray-500);
  transition: all var(--transition);
}

.client-logo:hover i {
  color: var(--primary-color);
  transform: scale(1.1);
}

/* 客户logo图片样式 - 添加浅灰色半透明遮盖层 */
.client-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: brightness(0.4) grayscale(0.9); /* 默认使图片变暗 */
  transition: filter var(--transition);
}

.client-logo:hover img {
  filter: brightness(1) grayscale(0); /* 鼠标悬浮时去掉遮盖效果，恢复原图亮度 */
}

.client-logo-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  text-align: center;
}

.client-logo-placeholder i {
  font-size: 2.5rem;
  color: var(--gray-500);
  margin-bottom: 0.5rem;
  transition: all var(--transition);
}

.client-logo-placeholder span {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  font-weight: 500;
  transition: all var(--transition);
}

.client-logo:hover .client-logo-placeholder i {
  color: var(--primary-color);
  transform: scale(1.1);
}

.client-logo:hover .client-logo-placeholder span {
  color: var(--primary-color);
}

.clients-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
  padding: 2rem;
  background: linear-gradient(135deg, rgba(0, 167, 243, 0.05) 0%, rgba(0, 149, 224, 0.05) 100%);
  border-radius: var(--border-radius-lg);
}

.stat-item {
  text-align: center;
  padding: 1.5rem;
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

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

.stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  display: block;
}

.stat-label {
  font-size: var(--font-size-base);
  color: var(--gray-600);
  font-weight: 500;
}

@keyframes scroll-left {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .clients-section {
    padding: 3rem 0;
  }
  
  .clients-title {
    font-size: var(--font-size-3xl);
  }
  
  .clients-subtitle {
    font-size: var(--font-size-base);
    padding: 0 1rem;
  }
  
  .client-logo {
    width: 140px;
    height: 70px;
  }
  
  .client-logo i {
    font-size: 1.75rem;
  }
  
  .clients-track {
    gap: 1.5rem;
  }
  
  .clients-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    padding: 1.5rem;
  }
  
  .stat-item {
    padding: 1rem;
  }
  
  .stat-value {
    font-size: var(--font-size-2xl);
  }
  
  .stat-label {
    font-size: var(--font-size-sm);
  }
  
  /* 减小三排之间的间距 */
  .client-category {
    margin-bottom: 0rem;
  }
}

@media (max-width: 480px) {
  .clients-stats {
    grid-template-columns: 1fr;
  }
  
  .client-logo {
    width: 120px;
    height: 60px;
  }
  
  .client-logo i {
    font-size: 1.5rem;
  }
  
  .clients-track {
    gap: 1rem;
  }
}

/* ===== 8. 行动号召区域 ===== */
.cta-section {
  padding: 5rem 0;
  background: var(--gradient-light-blue);
  text-align: center;
}

.cta-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--dark);
}

.cta-description {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* ===== 9. 页脚样式 ===== */
.footer {
  background-color: var(--gray-900);
  color: var(--white);
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  height: 40px;
  margin-bottom: 1rem;
}

.footer-description {
  color: var(--gray-400);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.footer-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--white);
}

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

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--gray-400);
  transition: color var(--transition-fast);
}

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

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

.footer-contact li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 1rem;
  color: var(--gray-400);
}

.footer-contact i {
  margin-right: 0.75rem;
  color: var(--primary-color);
  margin-top: 0.25rem;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--gray-800);
  text-align: center;
  color: var(--gray-400);
}

/* ===== 轮播导航按钮 ===== */
.carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background-color: rgba(255, 255, 255, 0.9);
  border: none;
  border-radius: 50%;
  color: var(--primary-color);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow);
}

.carousel-nav:hover {
  background-color: var(--primary-color);
  color: var(--white);
  transform: translateY(-50%) scale(1.1);
  box-shadow: var(--shadow-lg);
}

.carousel-nav-prev {
  left: 20px;
}

.carousel-nav-next {
  right: 20px;
}

/* 轮播指示器 */
.carousel-indicators {
  position: absolute;
  bottom: 30px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 12px;
  z-index: 10;
}

.carousel-indicator {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(0, 0, 0, 0.4);
  background-color: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: 0;
  position: relative;
}

.carousel-indicator:hover {
  background-color: rgba(255, 255, 255, 0.5);
  transform: scale(1.2);
  border-color: rgba(0, 0, 0, 0.6);
}

.carousel-indicator.active {
  background-color: var(--white);
  border-color: var(--primary-color);
  transform: scale(1.3);
  box-shadow: 0 0 10px rgba(0, 167, 243, 0.5);
}

.carousel-indicator.active::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--primary-color);
}

/* ===== 11. 响应式设计 ===== */
@media (max-width: 992px) {
  .hero-title {
    font-size: var(--font-size-4xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-lg);
  }
}

@media (max-width: 768px) {
  
  /* 轮播导航按钮移动端优化 */
  .carousel-nav {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }
  
  .carousel-nav-prev {
    left: 10px;
  }
  
  .carousel-nav-next {
    right: 10px;
  }
  
  .carousel-indicators {
    bottom: 20px;
  }
  
  .carousel-indicator {
    width: 14px;
    height: 14px;
  }
  
  .carousel-indicator.active::after {
    width: 6px;
    height: 6px;
  }
  
  /* 英雄区域移动端优化 */
  .hero-title {
    font-size: var(--font-size-3xl);
    text-align: center;
  }
  
  .hero-subtitle {
    font-size: var(--font-size-base);
    text-align: center;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
  
  .hero-actions .btn {
    width: 100%;
    max-width: 300px;
    text-align: center;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  /* 价值主张区域移动端优化 */
  .values-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .value-card {
    padding: 1.5rem;
  }
  
  .value-title {
    font-size: var(--font-size-lg);
  }
  
  /* 平台能力区域移动端优化 - 改为手风琴式 */
  .tabs-nav {
    display: none; /* 隐藏标签页导航，改为手风琴 */
  }
  
  .capabilities-tabs {
    position: relative;
  }
  
  .tabs-content {
    background: transparent;
    box-shadow: none;
  }
  
  .tab-pane {
    display: block;
    padding: 0;
    margin-bottom: 1rem;
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: all var(--transition);
  }
  
  .tab-pane.active {
    display: block;
    max-height: 2000px;
    opacity: 1;
    margin-bottom: 1rem;
  }
  
  /* 手风琴标题栏 */
  .accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
  }
  
  .accordion-header:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
  }
  
  .accordion-header.active {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
  }
  
  .accordion-header.active .accordion-toggle-icon {
    color: var(--white);
  }
  
  .accordion-header i:not(.accordion-toggle-icon) {
    margin-right: 0.75rem;
    font-size: 1.25rem;
  }
  
  .accordion-toggle-icon {
    transition: transform var(--transition);
    color: var(--gray-500);
  }
  
  .accordion-header.active .accordion-toggle-icon {
    transform: rotate(180deg);
    color: var(--white);
  }
  
  .tab-pane .capability-layout {
    display: block;
  }
  
  .tab-pane .capability-left {
    display: none; /* 移动端隐藏左侧演示区域 */
  }
  
  .tab-pane .capability-right {
    padding: 1.5rem;
  }
  
  .capability-icon {
    width: 48px;
    height: 48px;
    font-size: 1.5rem;
  }
  
  .capability-title {
    font-size: var(--font-size-lg);
  }
  
  .capability-subtitle {
    font-size: var(--font-size-base);
  }
  
  /* 行业解决方案区域移动端优化 */
  .solutions-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .solution-card {
    padding: 1.5rem;
  }
  
  .solution-title {
    font-size: var(--font-size-lg);
  }
  
  /* 行动号召区域移动端优化 */
  .cta-actions {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
  
  .cta-actions .btn {
    width: 100%;
    max-width: 300px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .cta-title {
    font-size: var(--font-size-2xl);
  }
  
  .cta-description {
    font-size: var(--font-size-base);
  }
  
  /* 移动端页脚优化 */
  .footer {
    padding: 2rem 0 1rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
  }
  
  .footer-brand {
    max-width: 100%;
    text-align: center;
  }
  
  .footer-title {
    font-size: var(--font-size-base);
    margin-bottom: 1rem;
  }
  
  .footer-description {
    font-size: var(--font-size-sm);
    margin-bottom: 1rem;
  }
  
  .footer-links li {
    margin-bottom: 0.5rem;
  }
  
  .footer-links a {
    font-size: var(--font-size-sm);
  }
  
  .footer-contact li {
    margin-bottom: 0.75rem;
    font-size: var(--font-size-sm);
  }
  
  .footer-contact i {
    font-size: 0.875rem;
  }
  
  .footer-bottom {
    padding-top: 1.5rem;
    font-size: var(--font-size-xs);
  }
  
  .footer-bottom p {
    margin-bottom: 0.5rem;
  }
  
  .social-links {
    justify-content: center;
    margin-top: 1rem;
  }
  
  .social-link {
    width: 32px;
    height: 32px;
    font-size: 0.875rem;
  }
  
  /* 隐藏产品功能、行业实战、联系我们三个部分 */
  .footer-content > div:nth-child(2),
  .footer-content > div:nth-child(3),
  .footer-content > div:nth-child(4) {
    display: none;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .section-title {
    font-size: var(--font-size-3xl);
  }
  
  .values-grid,
  .solutions-grid {
    grid-template-columns: 1fr;
  }
  
  .capabilities-tabs {
    flex-direction: column;
  }
  
  .capability-tab {
    width: 100%;
    text-align: center;
  }

  .solution-header{
    display: flex;
    align-items: center;
    gap: 16px;
  }
}

/* ===== 14. AI问数视频弹框样式 - 现代简约风格 ===== */
.video-modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  animation: modalFadeIn 0.3s ease;
}

.video-modal-container {
  background-color: var(--white);
  border-radius: 16px;
  width: 90%;
  max-width: 900px;
  max-height: 85vh;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(0, 0, 0, 0.08);
  animation: modalSlideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.video-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.5rem;
  background-color: var(--white);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  position: relative;
  min-height: 48px;
}

.video-modal-header h3 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-800);
  letter-spacing: -0.01em;
}

.video-modal-close {
  background: none;
  border: none;
  color: var(--gray-500);
  font-size: 1.125rem;
  cursor: pointer;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  background-color: rgba(0, 0, 0, 0.03);
  flex-shrink: 0;
}

.video-modal-close:hover {
  background-color: rgba(0, 0, 0, 0.08);
  color: var(--gray-700);
  transform: rotate(90deg);
}

.video-modal-content {
  padding: 0;
  position: relative;
}

#ai-video-player,
#visual-modeling-video-player,
#shared-video-player {
  width: 100%;
  height: 100%;
  /* max-height: calc(85vh - 48px); */
  display: block;
  background-color: transparent;
  object-fit: cover; /* 填充整个容器，可能会裁剪视频边缘 */
}

/* 移除所有控制条相关样式，让视频清晰展示 */
#ai-video-player::-webkit-media-controls,
#visual-modeling-video-player::-webkit-media-controls,
#shared-video-player::-webkit-media-controls {
  display: none !important;
}

#ai-video-player::-webkit-media-controls-panel,
#ai-video-player::-webkit-media-controls-play-button,
#ai-video-player::-webkit-media-controls-volume-slider,
#ai-video-player::-webkit-media-controls-mute-button,
#ai-video-player::-webkit-media-controls-fullscreen-button,
#ai-video-player::-webkit-media-controls-timeline,
#ai-video-player::-webkit-media-controls-timeline-container,
#ai-video-player::-webkit-media-controls-current-time-display,
#ai-video-player::-webkit-media-controls-time-remaining-display,
#visual-modeling-video-player::-webkit-media-controls-panel,
#visual-modeling-video-player::-webkit-media-controls-play-button,
#visual-modeling-video-player::-webkit-media-controls-volume-slider,
#visual-modeling-video-player::-webkit-media-controls-mute-button,
#visual-modeling-video-player::-webkit-media-controls-fullscreen-button,
#visual-modeling-video-player::-webkit-media-controls-timeline,
#visual-modeling-video-player::-webkit-media-controls-timeline-container,
#visual-modeling-video-player::-webkit-media-controls-current-time-display,
#visual-modeling-video-player::-webkit-media-controls-time-remaining-display,
#shared-video-player::-webkit-media-controls-panel,
#shared-video-player::-webkit-media-controls-play-button,
#shared-video-player::-webkit-media-controls-volume-slider,
#shared-video-player::-webkit-media-controls-mute-button,
#shared-video-player::-webkit-media-controls-fullscreen-button,
#shared-video-player::-webkit-media-controls-timeline,
#shared-video-player::-webkit-media-controls-timeline-container,
#shared-video-player::-webkit-media-controls-current-time-display,
#shared-video-player::-webkit-media-controls-time-remaining-display {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
}

/* 确保视频区域清晰可见，无黑色遮挡 */
#ai-video-player,
#visual-modeling-video-player,
#shared-video-player {
  background-color: transparent;
}

#ai-video-player:hover,
#visual-modeling-video-player:hover,
#shared-video-player:hover {
  background-color: transparent;
}

/* ===== 15. 自定义视频控制条样式 ===== */
.video-wrapper {
  position: relative;
  width: 100%;
  background-color: #000;
}

.custom-video-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  padding: 1rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 10;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.video-wrapper:hover .custom-video-controls {
  opacity: 1;
}

.progress-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: 100%;
}

.progress-bar-container {
  flex: 1;
  position: relative;
  height: 20px;
  cursor: pointer;
}

.progress-bar-bg {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 4px;
  background-color: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  transform: translateY(-50%);
}

.progress-bar-fill {
  position: absolute;
  top: 50%;
  left: 0;
  height: 4px;
  background-color: var(--primary-color);
  border-radius: 2px;
  transform: translateY(-50%);
  width: 0%;
  transition: width 0.1s linear;
}

.progress-slider {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 20;
  margin: 0;
}

.progress-slider::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
}

.progress-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  border: none;
}

.time-display {
  color: white;
  font-size: 0.875rem;
  font-weight: 500;
  min-width: 80px;
  text-align: right;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
  white-space: nowrap;
}

.action-controls {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
}

.control-btn {
  background-color: rgba(255, 255, 255, 0.2);
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  cursor: pointer;
  transition: all 0.2s ease;
  backdrop-filter: blur(4px);
}

.control-btn:hover {
  background-color: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

.control-btn:active {
  transform: scale(0.95);
}

.control-btn i {
  font-size: 1rem;
}

/* 全屏样式调整 */
.video-wrapper:fullscreen {
  width: 100%;
  height: 100%;
  background-color: #000;
}

.video-wrapper:fullscreen #ai-video-player,
.video-wrapper:fullscreen #shared-video-player {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-wrapper:fullscreen .custom-video-controls {
  padding: 1.5rem 2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .custom-video-controls {
    padding: 0.75rem 1rem;
    gap: 0.5rem;
  }
  
  .progress-bar-container {
    height: 16px;
  }
  
  .progress-bar-bg,
  .progress-bar-fill {
    height: 3px;
  }
  
  .time-display {
    font-size: 0.75rem;
    min-width: 70px;
  }
  
  .control-btn {
    width: 32px;
    height: 32px;
  }
  
  .control-btn i {
    font-size: 0.875rem;
  }
  
  .video-wrapper:fullscreen .custom-video-controls {
    padding: 1rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .custom-video-controls {
    padding: 0.5rem 0.75rem;
  }
  
  .progress-controls {
    gap: 0.5rem;
  }
  
  .time-display {
    font-size: 0.7rem;
    min-width: 60px;
  }
  
  .control-btn {
    width: 28px;
    height: 28px;
  }
  
  .control-btn i {
    font-size: 0.75rem;
  }
}

@keyframes modalFadeIn {
  from { 
    opacity: 0;
    backdrop-filter: blur(0);
    -webkit-backdrop-filter: blur(0);
  }
  to { 
    opacity: 1;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }
}

@keyframes modalSlideUp {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .video-modal-overlay {
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
  }
  
  .video-modal-container {
    width: 95%;
    max-height: 80vh;
    border-radius: 12px;
    margin: 1rem;
  }
  
  .video-modal-header {
    padding: 1rem 1.25rem;
  }
  
  .video-modal-header h3 {
    font-size: 1.125rem;
  }
  
  .video-modal-close {
    width: 32px;
    height: 32px;
    font-size: 1.125rem;
  }
  
#ai-video-player,
#visual-modeling-video-player,
#shared-video-player {
  max-height: calc(80vh - 60px);
}
}

@media (max-width: 480px) {
  .video-modal-container {
    width: 100%;
    max-height: 70vh;
    border-radius: 0;
    margin: 0;
    border: none;
    box-shadow: none;
  }
  
  .video-modal-header {
    padding: 0.875rem 1rem;
  }
  
  .video-modal-header h3 {
    font-size: 1rem;
  }
  
  .video-modal-close {
    width: 28px;
    height: 28px;
    font-size: 1rem;
  }
  
#ai-video-player,
#visual-modeling-video-player,
#shared-video-player {
  max-height: calc(70vh - 56px);
}
}