/* 全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #ff6b35;
  --secondary-color: #f7931e;
  --purple-color: #667eea;
  --dark-bg: #0a0a0f;
  --dark-card: rgba(255, 255, 255, 0.05);
  --border-color: rgba(255, 255, 255, 0.1);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background-color: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: rgba(10, 10, 15, 0.95);
}

.navbar-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.brand-logo {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 2px;
}

.navbar-menu {
  display: flex;
  list-style: none;
  gap: 30px;
}

.navbar-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: color 0.3s ease;
}

.navbar-menu a:hover {
  color: var(--primary-color);
}

.navbar-menu a.disabled {
  color: #888 !important;
  cursor: not-allowed;
  pointer-events: none;
}

/* 闪烁的 Store 按钮 */
.nav-store-badge {
  background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
  color: white !important;
  padding: 6px 16px !important;
  border-radius: 20px;
  font-weight: 700 !important;
  animation: storeGlow 1.5s ease-in-out infinite;
  box-shadow: 0 0 10px rgba(255, 107, 53, 0.5);
  transition: all 0.3s ease;
}

.nav-store-badge:hover {
  transform: scale(1.05);
  box-shadow: 0 0 20px rgba(255, 107, 53, 0.8);
}

@keyframes storeGlow {
  0%, 100% {
    box-shadow: 0 0 10px rgba(255, 107, 53, 0.5);
  }
  50% {
    box-shadow: 0 0 25px rgba(255, 107, 53, 0.9), 0 0 40px rgba(255, 107, 53, 0.5);
  }
}

.navbar-lang {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.navbar-auth {
  display: flex;
  align-items: center;
  gap: 10px;
}

.auth-btn {
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}

.auth-login {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
}

.auth-login:hover {
  background: rgba(255, 255, 255, 0.2);
}

.auth-register {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
}

.auth-register:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.auth-profile {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.auth-profile:hover {
  background: rgba(255, 255, 255, 0.15);
}

#userAvatar {
  font-size: 18px;
}

#userNameDisplay {
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.navbar-lang:hover {
  background: rgba(255, 107, 53, 0.8);
  border-color: rgba(255, 107, 53, 0.5);
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}

.navbar-toggle span {
  width: 25px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s ease;
}

/* Hero 区域 */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 180px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.hero-bg img,
.hero-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.25) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 20px;
  max-width: 900px;
  margin-top: 80px;
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 24px;
  letter-spacing: 4px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8), -1px -1px 0 rgba(0, 0, 0, 0.5), 1px -1px 0 rgba(0, 0, 0, 0.5), -1px 1px 0 rgba(0, 0, 0, 0.5), 1px 1px 0 rgba(0, 0, 0, 0.5);
}

.hero-desc {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 30px;
  line-height: 1.8;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.8), -1px -1px 0 rgba(0, 0, 0, 0.4), 1px -1px 0 rgba(0, 0, 0, 0.4), -1px 1px 0 rgba(0, 0, 0, 0.4), 1px 1px 0 rgba(0, 0, 0, 0.4);
}

.hero-buttons {
  position: absolute;
  bottom: 120px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 20px;
  justify-content: center;
}

/* 浮动按钮 */
.floating-buttons {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 16px;
  z-index: 999;
}

.float-btn {
  padding: 15px 35px;
  border: none;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 2px;
  transition: all 0.3s ease;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.btn-orange {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: #fff;
}

.btn-orange:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(255, 107, 53, 0.5);
}

.btn-purple {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
}

.btn-purple:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(102, 126, 234, 0.5);
}

/* 通用按钮样式 */
.btn {
  display: inline-block;
  padding: 14px 36px;
  border-radius: 30px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s ease;
  letter-spacing: 1px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(255, 107, 53, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 107, 53, 0.6);
}

.btn.disabled {
  background: #555 !important;
  border-color: #666 !important;
  color: #999 !important;
  cursor: not-allowed !important;
  pointer-events: none;
}

/* 通用区块样式 */
.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: 4px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
}

/* 核心特性区域 */
.features-section {
  padding: 80px 20px;
  background: linear-gradient(180deg, var(--dark-bg) 0%, #0f1419 100%);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  max-width: 1400px;
  margin: 0 auto;
}

.feature-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 30px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.4s ease;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.feature-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 107, 53, 0.4);
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 产品系列区域 */
.products-section {
  padding: 80px 20px;
  background: linear-gradient(180deg, #0f1419 0%, var(--dark-bg) 100%);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.product-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  overflow: hidden;
  transition: all 0.4s ease;
}

.product-card:hover {
  border-color: rgba(255, 107, 53, 0.4);
  transform: translateY(-5px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.product-image img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.product-info {
  padding: 30px;
}

.product-info h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-primary);
}

.product-info p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

/* 技术实力区域 */
.tech-section {
  padding: 80px 20px;
  background: #f8f9fa;
  color: #333;
}

.tech-section .section-title,
.tech-section .section-desc {
  color: #333;
}

.tech-content {
  display: flex;
  gap: 50px;
  max-width: 1200px;
  margin: 0 auto;
  align-items: center;
}

.tech-image img {
  max-width: 450px;
  border-radius: 16px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.tech-info {
  flex: 1;
}

.tech-info h3 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 20px;
  color: #222;
}

.tech-info p {
  font-size: 16px;
  color: #555;
  line-height: 1.8;
  margin-bottom: 16px;
}

.tech-image-row img {
  width: 100%;
  border-radius: 12px;
  margin-top: 20px;
}

/* 软件下载区域 */
.software-section {
  padding: 80px 20px;
  background: linear-gradient(180deg, var(--dark-bg) 0%, #0f1419 100%);
}

.software-content {
  max-width: 600px;
  margin: 0 auto;
}

.software-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 45px 40px;
  text-align: center;
}

.software-icon {
  font-size: 64px;
  margin-bottom: 20px;
}

.software-card h3 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 8px;
}

.software-version {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.software-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.software-features {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.software-features span {
  padding: 8px 20px;
  background: rgba(255, 107, 53, 0.15);
  border-radius: 20px;
  font-size: 13px;
  color: var(--primary-color);
}

.download-btn {
  width: 100%;
  padding: 18px;
  font-size: 17px;
}

.download-hint {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 14px;
}

/* 新品预告区域 */
.new-product-section {
  padding: 80px 20px;
  background: linear-gradient(180deg, #0f1419 0%, var(--dark-bg) 100%);
  text-align: center;
}

.new-product-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  padding: 10px 28px;
  border-radius: 25px;
  margin-bottom: 30px;
  letter-spacing: 3px;
  box-shadow: 0 6px 25px rgba(255, 107, 53, 0.5);
  animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.new-product-title {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: 6px;
}

.new-product-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 45px;
}

.new-product-image-container {
  max-width: 1000px;
  margin: 0 auto;
  border-radius: 24px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  transition: all 0.4s ease;
}

.new-product-image-container:hover {
  transform: scale(1.02);
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.6);
}

.new-product-image {
  width: 100%;
  height: auto;
  display: block;
}

.new-product-overlay {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: #fff;
  padding: 12px 35px;
  border-radius: 25px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 2px;
  box-shadow: 0 8px 30px rgba(255, 107, 53, 0.5);
}

.new-product-features {
  display: flex;
  gap: 40px;
  justify-content: center;
  margin-top: 50px;
  flex-wrap: wrap;
}

.new-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 16px;
}

.new-feature .feature-icon {
  font-size: 24px;
}

/* 3D 产品展示区域 */
.viewer-3d-section {
  padding: 80px 20px;
  background: linear-gradient(180deg, var(--dark-bg) 0%, #0f1419 100%);
}

.viewer-3d-content {
  max-width: 800px;
  margin: 0 auto;
}

.viewer-3d-card {
  display: flex;
  align-items: center;
  gap: 40px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px;
  cursor: pointer;
  transition: all 0.4s ease;
}

.viewer-3d-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 107, 53, 0.4);
  transform: translateY(-8px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.viewer-3d-preview {
  flex-shrink: 0;
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.15) 0%, rgba(102, 126, 234, 0.15) 100%);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.viewer-3d-icon {
  font-size: 80px;
  opacity: 0.8;
}

.viewer-3d-info {
  flex: 1;
}

.viewer-3d-info h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.viewer-3d-info p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.viewer-3d-btn {
  display: inline-block;
  padding: 12px 28px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: #fff;
  border-radius: 25px;
  font-size: 15px;
  font-weight: 700;
  transition: all 0.3s ease;
}

.viewer-3d-card:hover .viewer-3d-btn {
  transform: translateX(5px);
  box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
}

@media (max-width: 768px) {
  .viewer-3d-card {
    flex-direction: column;
    text-align: center;
    padding: 30px 20px;
  }
  
  .viewer-3d-preview {
    width: 150px;
    height: 150px;
  }
  
  .viewer-3d-icon {
    font-size: 60px;
  }
  
  .viewer-3d-info h3 {
    font-size: 20px;
  }
}

/* 联系我们区域 */
.contact-section {
  padding: 80px 20px;
  background: linear-gradient(180deg, var(--dark-bg) 0%, #0f1419 100%);
}

.contact-content {
  display: flex;
  gap: 60px;
  max-width: 800px;
  margin: 0 auto;
  justify-content: center;
  align-items: center;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

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

.contact-icon {
  font-size: 28px;
}

.contact-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.contact-value {
  font-size: 18px;
  font-weight: 600;
}

.contact-qrcode img {
  width: 200px;
  height: 200px;
  border-radius: 16px;
  display: block;
}

.contact-qrcode-triple .qrcode-item img {
  width: 160px;
  height: 160px;
}

.contact-qrcode p {
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 12px;
}

.qrcode-label {
  text-align: center;
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  margin-top: 16px;
  letter-spacing: 1px;
  text-shadow: 0 0 10px rgba(255, 107, 53, 0.5);
}

.contact-qrcode-triple {
  display: flex;
  gap: 30px;
  align-items: flex-start;
  flex-wrap: nowrap;
  justify-content: center;
}

.contact-qrcode-triple .qrcode-item {
  flex: 0 0 auto;
}

.qrcode-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  padding: 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
}

.qrcode-item:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 107, 53, 0.5);
  background: rgba(255, 107, 53, 0.05);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.2);
}

/* 页脚 */
.footer {
  background: #0a0a0f;
  border-top: 1px solid var(--border-color);
  padding: 50px 20px 30px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto 40px;
}

.footer-brand .brand-logo {
  display: block;
  font-size: 28px;
  margin-bottom: 8px;
}

.footer-brand p {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 30px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s ease;
}

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

.footer-social {
  display: flex;
  gap: 25px;
}

.footer-social span {
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  transition: color 0.3s ease;
}

.footer-social span:hover {
  color: var(--primary-color);
}

.footer-copyright {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

.footer-copyright p {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .tech-content {
    flex-direction: column;
    text-align: center;
  }
  
  .tech-image img {
    max-width: 100%;
    width: 100%;
  }
}

@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .navbar-menu {
    display: none;
  }
  
  .navbar-toggle {
    display: flex;
  }
  
  .hero-title {
    font-size: 34px;
  }
  
  .hero-desc {
    font-size: 16px;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .contact-content {
    flex-direction: column;
    text-align: center;
  }
  
  .contact-item {
    justify-content: center;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 30px;
    text-align: center;
  }
  
  .footer-links, .footer-social {
    justify-content: center;
  }
}

@media (max-width: 650px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .floating-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .float-btn {
    width: 200px;
  }
  
  .hero-title {
    font-size: 28px;
    letter-spacing: 2px;
  }
  
  .new-product-title {
    font-size: 32px;
    letter-spacing: 4px;
  }
}

@media (max-width: 450px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .feature-card {
    flex-direction: row;
    text-align: left;
    min-height: auto;
  }
  
  .feature-icon {
    margin-right: 20px;
    margin-bottom: 0;
    font-size: 32px;
  }
  
  .navbar-container {
    padding: 0 15px;
  }
  
  .software-card {
    padding: 30px 20px;
  }
}

/* 移动端菜单 */
.navbar-menu.active {
  display: flex;
  position: absolute;
  top: 70px;
  left: 0;
  right: 0;
  background: rgba(10, 10, 15, 0.98);
  flex-direction: column;
  padding: 20px 30px;
  gap: 15px;
  border-bottom: 1px solid var(--border-color);
}

/* Hero 区域切换按钮 */
.hero-prev-btn, .hero-next-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  transition: all 0.3s ease;
  opacity: 0;
}

.hero-bg:hover .hero-prev-btn,
.hero-bg:hover .hero-next-btn {
  opacity: 1;
}

.hero-prev-btn:hover, .hero-next-btn:hover {
  background: rgba(255, 107, 53, 0.8);
  border-color: rgba(255, 107, 53, 0.5);
  transform: translateY(-50%) scale(1.1);
}

.hero-prev-btn {
  left: 20px;
}

.hero-next-btn {
  right: 20px;
}

/* 图片指示器 */
.hero-indicators {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 2;
}

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

.hero-indicator:hover {
  background: rgba(255, 255, 255, 0.6);
}

.hero-indicator.active {
  width: 30px;
  border-radius: 6px;
  background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
}

@media (max-width: 768px) {
  .hero-prev-btn, .hero-next-btn {
    width: 40px;
    height: 40px;
    opacity: 1;
  }
  
  .hero-prev-btn {
    left: 10px;
  }
  
  .hero-next-btn {
    right: 10px;
  }
}

@media (max-width: 900px) {
  .contact-content {
    flex-direction: column;
    gap: 40px;
  }
  
  .contact-qrcode-triple {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
  
  .contact-qrcode-triple .qrcode-item img {
    width: 180px;
    height: 180px;
  }
}

#heroImage {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.8s ease-in-out;
}

#heroImage.fading {
  opacity: 0.7;
}

.play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: transparent;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1;
}

.hero-bg:hover .play-overlay {
  opacity: 0;
}

.play-button {
  margin-bottom: 16px;
  animation: pulse-play 2s ease-in-out infinite;
}

@keyframes pulse-play {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.play-button svg {
  filter: drop-shadow(0 4px 20px rgba(255, 107, 53, 0.5));
}

.play-text {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

/* 视频模态框 */
.video-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.video-modal.active {
  opacity: 1;
  visibility: visible;
}

.video-modal-content {
  width: 90%;
  max-width: 1200px;
  position: relative;
}

.video-modal video {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

.video-modal-close {
  position: absolute;
  top: -50px;
  right: 0;
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.video-modal-close:hover {
  background: rgba(255, 107, 53, 0.8);
  transform: scale(1.1);
}

@media (max-width: 768px) {
  .video-modal-close {
    top: -45px;
    width: 44px;
    height: 44px;
    font-size: 24px;
  }
  
  .play-text {
    font-size: 14px;
  }
}

/* Toast 提示消息 */
.toast {
  position: fixed;
  top: 100px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: rgba(0, 0, 0, 0.85);
  color: white;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  z-index: 3000;
  opacity: 0;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}