/* 申云博视科技官网 - 全局样式 */
:root {
  --primary: #1A56DB;
  --primary-dark: #1E429F;
  --primary-light: #E1EFFE;
  --accent: #10B981;
  --text: #1F2937;
  --text-light: #6B7280;
  --text-lighter: #9CA3AF;
  --bg: #FFFFFF;
  --bg-light: #F9FAFB;
  --bg-dark: #111827;
  --border: #E5E7EB;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--primary-dark);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
  color: var(--text);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-light);
  text-align: center;
  margin-bottom: 48px;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 48px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 1rem;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  gap: 8px;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid white;
}

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

.btn-outline-dark {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

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

/* 顶部导航 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  transition: var(--transition);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

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

.logo img {
  height: 40px;
  width: auto;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.5px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-menu a {
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 8px 0;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--primary);
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-contact {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-phone {
  font-weight: 700;
  color: var(--primary);
  font-size: 1rem;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: var(--transition);
}

/* 移动端菜单 */
@media (max-width: 991px) {
  .mobile-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    gap: 0;
    padding: 16px 0;
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }
  
  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  
  .nav-menu li {
    width: 100%;
  }
  
  .nav-menu a {
    display: block;
    padding: 14px 24px;
    border-bottom: 1px solid var(--border);
  }
  
  .nav-menu a::after {
    display: none;
  }
  
  .nav-contact {
    display: none;
  }
}

/* 轮播Banner */
.hero-slider {
  position: relative;
  height: 600px;
  overflow: hidden;
  margin-top: 72px;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.8s ease;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
}

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

.slide-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  color: white;
  width: 100%;
}

.slide-content h1, .slide-content h2 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.2;
  max-width: 700px;
}

.slide-content p {
  font-size: 1.25rem;
  margin-bottom: 32px;
  opacity: 0.9;
  max-width: 600px;
}

.slide-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

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

.slider-dots button {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.5);
  background: transparent;
  cursor: pointer;
  transition: var(--transition);
}

.slider-dots button.active {
  background: white;
  border-color: white;
}

.slider-arrows {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: 0 30px;
  z-index: 10;
  pointer-events: none;
}

.slider-arrow {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
  transition: var(--transition);
}

.slider-arrow:hover {
  background: rgba(255,255,255,0.4);
}

@media (max-width: 768px) {
  .hero-slider {
    height: 500px;
  }
  .slide-content h1, .slide-content h2 {
    font-size: 2rem;
  }
  .slide-content p {
    font-size: 1rem;
  }
  .slider-arrows {
    display: none;
  }
}

/* 卡片通用样式 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

/* 资质与荣誉：固定一行四个框 */
.qualification-grid {
  grid-template-columns: repeat(4, 1fr);
}
@media (max-width: 992px) {
  .qualification-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 560px) {
  .qualification-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.card-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.75rem;
  flex-shrink: 0;
}

.card-icon.accent {
  background: #D1FAE5;
  color: var(--accent);
}

.card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

.card p {
  color: var(--text-light);
  font-size: 0.95rem;
  flex: 1;
}

.card-meta {
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--text-lighter);
}

/* 系统功能列表 */
.feature-list {
  list-style: none;
  margin-top: 16px;
}

.feature-list li {
  padding: 6px 0;
  color: var(--text-light);
  font-size: 0.9rem;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.feature-list li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* 8大系统区 */
.systems-section {
  background: var(--bg-light);
}

.system-card .card-title-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.system-card h3 {
  margin-bottom: 0;
}

.system-tag {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 20px;
  font-weight: 500;
}

.tag-self {
  background: #D1FAE5;
  color: #047857;
}

.tag-oem {
  background: #FEF3C7;
  color: #B45309;
}

/* 行业方案区 */
.solution-card {
  position: relative;
  overflow: hidden;
}

.solution-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary);
  transition: var(--transition);
}

.solution-card:hover::before {
  width: 6px;
}

.solution-card .card-icon {
  background: var(--primary);
  color: white;
}

.solution-meta {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.solution-meta strong {
  color: var(--text);
  font-size: 0.85rem;
}

.solution-meta p {
  color: var(--text-light);
  font-size: 0.85rem;
  margin-top: 4px;
}

/* 硬件产品 */
.hardware-section {
  background: var(--bg-light);
}

.hardware-item {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
}

.hardware-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.hardware-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.96);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 28px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 2;
  text-align: center;
}

.hardware-item:hover .hardware-overlay {
  opacity: 1;
  visibility: visible;
}

.hardware-overlay h4 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.hardware-overlay p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.overlay-link {
  display: inline-block;
  padding: 10px 24px;
  background: var(--primary);
  color: #fff;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.25s ease;
  align-self: center;
}

.overlay-link:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.overlay-coming-soon {
  display: inline-block;
  padding: 8px 20px;
  background: var(--bg-light);
  color: var(--text-light);
  border-radius: 50px;
  font-size: 0.9rem;
  align-self: center;
}

.hardware-img {
  height: 200px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 3rem;
}

.hardware-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.hardware-body h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.hardware-body p {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 16px;
  flex: 1;
}

.hardware-specs {
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 16px;
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: auto;
}

.hardware-specs strong {
  color: var(--text);
  display: block;
  margin-bottom: 6px;
}

.hardware-specs ul {
  list-style: none;
}

.hardware-specs li {
  padding: 3px 0;
  padding-left: 16px;
  position: relative;
}

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

/* 案例页 */
.cases-placeholder {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 80px 40px;
  text-align: center;
  border: 2px dashed var(--border);
}

.cases-placeholder h3 {
  font-size: 1.5rem;
  margin-bottom: 16px;
  color: var(--text);
}

.cases-placeholder p {
  color: var(--text-light);
  max-width: 500px;
  margin: 0 auto;
}

/* 关于我们 */
.about-hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: white;
  padding: 100px 0 60px;
  margin-top: 72px;
}

.about-hero h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.about-hero p {
  font-size: 1.15rem;
  opacity: 0.9;
  max-width: 700px;
}

.about-content {
  padding: 60px 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-text h2 {
  font-size: 1.75rem;
  margin-bottom: 20px;
  color: var(--text);
}

.about-text p {
  color: var(--text-light);
  margin-bottom: 16px;
}

.about-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.advantage-item {
  display: flex;
  gap: 16px;
}

.advantage-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.advantage-item h4 {
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.advantage-item p {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* 照片画廊 */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.gallery-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

.gallery-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.gallery-caption {
  padding: 12px;
  text-align: center;
  color: var(--text-light);
  font-size: 0.9rem;
  background: white;
}

/* 联系信息 */
.contact-section {
  background: var(--bg-light);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 24px;
}

.contact-card {
  background: white;
  padding: 28px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
}

.contact-card:hover {
  box-shadow: var(--shadow-md);
}

.contact-card i {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 16px;
  display: block;
}

.contact-card h4 {
  margin-bottom: 8px;
}

.contact-card a,
.contact-card p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* 友情链接/合作伙伴 */
.links-section {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

.links-section h4 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: var(--text);
}

.links-list {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  list-style: none;
}

.links-list a {
  display: inline-block;
  padding: 8px 16px;
  background: var(--bg-light);
  border-radius: var(--radius);
  color: var(--text-light);
  font-size: 0.9rem;
  transition: var(--transition);
}

.links-list a:hover {
  background: var(--primary);
  color: white;
}

/* 页脚 */
.footer {
  background: var(--bg-dark);
  color: white;
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo-text {
  color: white;
  font-size: 1.5rem;
  margin-bottom: 16px;
  display: block;
}

.footer-brand p {
  color: var(--text-lighter);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.footer-brand img {
  height: 40px;
  margin-bottom: 16px;
}

.footer-links h4 {
  font-size: 1rem;
  margin-bottom: 20px;
  color: white;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--text-lighter);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-lighter);
  font-size: 0.85rem;
}

.footer-bottom a {
  color: var(--text-lighter);
}

@media (max-width: 991px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* 页面内标题区 */
.page-header {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: white;
  padding: 120px 0 60px;
  margin-top: 72px;
  text-align: center;
}

.page-header h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.page-header p {
  font-size: 1.15rem;
  opacity: 0.9;
  max-width: 700px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.8);
}

.breadcrumb a {
  color: rgba(255,255,255,0.9);
}

.breadcrumb a:hover {
  color: white;
}

/* 两栏布局 */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 991px) {
  .split-section,
  .about-grid {
    grid-template-columns: 1fr;
  }
  .split-section .order-1,
  .about-grid .order-1 {
    order: 1;
  }
}

/* 动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 小工具 */
.text-center {
  text-align: center;
}

.mt-4 {
  margin-top: 32px;
}

.mb-0 {
  margin-bottom: 0;
}

.text-primary {
  color: var(--primary);
}

.text-accent {
  color: var(--accent);
}

.bg-white {
  background: white;
}

/* 回到顶部 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  z-index: 999;
  box-shadow: var(--shadow-md);
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

/* ===== 合作伙伴 Logo 墙 ===== */
.partners-section {
  background: var(--bg-light);
}

.partners-group {
  margin-bottom: 48px;
}

.partners-group:last-child {
  margin-bottom: 0;
}

.partners-group-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
}

.partners-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 14px;
}

.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 180px;
  height: 92px;
  background: #fff;
  border-radius: var(--radius);
  border-top: 4px solid var(--brand-color, var(--primary));
  box-shadow: var(--shadow);
  transition: var(--transition);
  padding: 14px 20px;
  text-decoration: none;
}

.partner-logo img {
  max-width: 100%;
  max-height: 56px;
  object-fit: contain;
  transition: filter 0.3s ease;
}

.partner-logo:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-top-color: var(--brand-color, var(--primary));
}

.partner-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.partner-en {
  font-size: 0.75rem;
  color: var(--text-lighter);
  margin-top: 4px;
  letter-spacing: 0.5px;
}

.partners-desc {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-top: 4px;
}

@media (max-width: 768px) {
  .partners-logos {
    gap: 12px;
  }
  .partner-logo {
    width: calc(50% - 6px);
    height: 80px;
  }
}

/* ===== 导航栏下拉菜单 ===== */
.nav-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: #fff;
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.25s ease;
  z-index: 1000;
  padding: 8px 0;
  list-style: none;
}

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

.dropdown-menu li a {
  display: block;
  padding: 10px 20px;
  color: var(--text);
  font-size: 0.9rem;
  transition: var(--transition);
  border-left: 3px solid transparent;
}

.dropdown-menu li a:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-left-color: var(--primary);
}

.dropdown-menu li a.coming-soon {
  color: var(--text-lighter);
  pointer-events: none;
}

/* ===== 产品详情页样式 ===== */
.detail-hero {
  background: linear-gradient(135deg, #1A56DB 0%, #1E429F 100%);
  color: #fff;
  padding: 130px 0 60px;
  text-align: center;
}

.detail-hero h1 {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.detail-hero .detail-tagline {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 8px;
}

.detail-hero .detail-model {
  font-size: 0.85rem;
  opacity: 0.7;
  font-family: monospace;
}

.detail-section {
  padding: 50px 0;
  border-bottom: 1px solid var(--border);
}

.detail-section:nth-child(even) {
  background: var(--bg-light);
}

.detail-section h2 {
  font-size: 1.6rem;
  color: var(--text);
  margin-bottom: 24px;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 20px;
}

.highlight-item {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-top: 3px solid var(--primary);
}

.highlight-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.highlight-item .hl-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.highlight-item h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--primary-dark);
}

.highlight-item p {
  color: var(--text-light);
  font-size: 0.92rem;
  line-height: 1.7;
}

.feature-block {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.feature-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.feature-card h4 {
  color: var(--primary);
  font-size: 1rem;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.feature-card ul li {
  padding: 6px 0 6px 20px;
  position: relative;
  color: var(--text-light);
  font-size: 0.9rem;
}

.feature-card ul li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.scene-tag {
  background: var(--primary-light);
  color: var(--primary-dark);
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 0.88rem;
  font-weight: 500;
}

.detail-cta {
  background: linear-gradient(135deg, #1A56DB 0%, #1E429F 100%);
  color: #fff;
  text-align: center;
  padding: 50px 0;
}

.detail-cta h2 {
  color: #fff;
  border: none;
  padding: 0;
  margin-bottom: 16px;
}

.detail-cta p {
  font-size: 1.05rem;
  opacity: 0.9;
  margin-bottom: 24px;
}

.detail-cta .btn-white {
  display: inline-block;
  background: #fff;
  color: var(--primary);
  padding: 12px 36px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
}

.detail-cta .btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.pain-points {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.pain-point {
  text-align: center;
  padding: 24px 16px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.pain-point .pp-num {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.pain-point h4 {
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.pain-point p {
  font-size: 0.82rem;
  color: var(--text-light);
}

@media (max-width: 768px) {
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding: 0 0 0 20px;
  }
  .nav-dropdown:hover .dropdown-menu {
    display: block;
  }
}

/* ===== 产品卡片链接样式 ===== */
.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.card-link .card {
  position: relative;
  transition: var(--transition);
  cursor: pointer;
}

.card-link:hover .card {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.card-detail-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 12px;
}

.card-detail-links .card-detail-link {
  margin-top: 0;
}

.card-detail-link {
  display: inline-block;
  margin-top: 12px;
  color: var(--primary);
  font-size: 0.88rem;
  font-weight: 600;
  transition: var(--transition);
}

.card-link:hover .card-detail-link {
  color: var(--primary-dark);
  transform: translateX(4px);
}

.card-coming-soon {
  display: inline-block;
  margin-top: 12px;
  padding: 4px 14px;
  background: var(--bg-light);
  color: var(--text-lighter);
  font-size: 0.82rem;
  border-radius: 20px;
  border: 1px solid var(--border);
}

/* 商显一体机形态画廊 */
.display-gallery-section {
  background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
  padding: 80px 0;
}

.display-gallery-section .section-tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 6px 18px;
  background: rgba(11, 95, 186, 0.1);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 20px;
  letter-spacing: 0.5px;
}

.display-gallery-section .section-title {
  font-size: 2.2rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.display-form-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 50px;
}

.display-form-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
}

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

.display-form-img {
  position: relative;
  width: 100%;
  height: 240px;
  overflow: hidden;
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.display-form-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.display-form-card:hover .display-form-img img {
  transform: scale(1.08);
}

.display-form-overlay {
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.85), transparent);
  color: #fff;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: var(--transition);
}

.display-form-card:hover .display-form-overlay {
  background: linear-gradient(to top, rgba(11, 95, 186, 0.9), transparent);
}

.display-form-name {
  font-size: 1.1rem;
  font-weight: 700;
}

.display-form-spec {
  font-size: 0.8rem;
  opacity: 0.9;
}

.display-form-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.display-form-body h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  color: var(--text);
}

.display-form-body p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.display-form-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.display-form-tags span {
  padding: 5px 12px;
  background: var(--bg-light);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 20px;
}

.display-gallery-cta {
  margin-top: 50px;
  text-align: center;
  padding: 36px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.display-gallery-cta p {
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 20px;
}

.display-gallery-cta .btn {
  margin: 0 8px;
}

@media (max-width: 1200px) {
  .display-form-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .display-form-img {
    height: 280px;
  }
}

@media (max-width: 768px) {
  .display-gallery-section .section-title {
    font-size: 1.6rem;
  }
  .display-form-grid {
    grid-template-columns: 1fr;
  }
  .display-form-img {
    height: 260px;
  }
  .display-gallery-cta .btn {
    display: block;
    margin: 10px 0;
  }
}

/* ===== 案例详情页 ===== */
.case-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-top: 40px;
}

.case-item {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.case-item:hover {
  box-shadow: var(--shadow-lg);
}

.case-img {
  background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0;
  color: var(--primary);
  overflow: hidden;
}

.case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 案例图片轮播 */
.case-carousel {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #eef2f7;
  overflow: hidden;
}
.case-carousel .slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .45s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.case-carousel .slide.active {
  opacity: 1;
  z-index: 1;
}
.case-carousel .slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.case-carousel .slide figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, .55);
  color: #fff;
  font-size: .78rem;
  padding: 7px 12px;
  text-align: center;
  z-index: 2;
}
.case-carousel .nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(15, 23, 42, .35);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 18px;
  line-height: 32px;
  text-align: center;
  z-index: 3;
  transition: background .2s;
}
.case-carousel .nav:hover {
  background: rgba(15, 23, 42, .65);
}
.case-carousel .nav.prev {
  left: 10px;
}
.case-carousel .nav.next {
  right: 10px;
}
.case-carousel .dots {
  position: absolute;
  top: 10px;
  left: 0;
  right: 0;
  display: flex;
  gap: 7px;
  justify-content: center;
  z-index: 3;
}
.case-carousel .dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .55);
  cursor: pointer;
  transition: background .2s;
}
.case-carousel .dots span.active {
  background: #fff;
}
@media (max-width: 768px) {
  .case-carousel .nav {
    display: none;
  }
  .case-carousel .dots {
    gap: 6px;
  }
  .case-carousel .dots span {
    width: 7px;
    height: 7px;
  }
}

.case-img .img-placeholder {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.8;
  padding: 28px;
}

.case-img .img-placeholder strong {
  display: block;
  color: var(--primary);
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.case-body {
  padding: 32px 36px;
}

.case-body h3 {
  font-size: 1.4rem;
  margin-bottom: 6px;
  color: var(--text);
}

.case-sub {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 18px;
}

.case-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.case-badge {
  background: var(--primary-light);
  color: var(--primary-dark);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.case-block {
  margin-bottom: 18px;
}

.case-block h4 {
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.case-block ul {
  list-style: none;
  padding: 0;
}

.case-block ul li {
  padding: 5px 0 5px 22px;
  position: relative;
  color: var(--text-light);
  font-size: 0.92rem;
  line-height: 1.7;
}

.case-block ul li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.case-result {
  background: var(--bg-light);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-top: 6px;
}

.case-result h4 {
  color: var(--accent);
  font-size: 1rem;
  margin-bottom: 8px;
}

.case-link {
  margin-top: 18px;
}

.faq-wrap {
  max-width: 880px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  padding: 20px 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--primary);
}

.faq-item h4 {
  color: var(--primary);
  font-size: 1.02rem;
  margin-bottom: 8px;
}

.faq-item p {
  color: var(--text-light);
  font-size: 0.92rem;
  line-height: 1.7;
}

@media (max-width: 991px) {
  .case-item {
    grid-template-columns: 1fr;
  }
  .case-img {
    min-height: 220px;
  }
  .case-body {
    padding: 24px;
  }
}