@charset "UTF-8";

/* ========================================
   解决方案页面 - 科技风格
   ======================================== */

/* 页面头部横幅 */
.tech-solution-hero {
  position: relative;
  height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 80px;
}

.tech-solution-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.tech-solution-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 10, 15, 0.8) 0%, rgba(10, 10, 15, 0.6) 100%);
}

.tech-solution-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  padding: 0 40px;
}

.tech-solution-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--tech-border);
  border-radius: 30px;
  font-size: 13px;
  color: var(--tech-primary);
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.tech-solution-hero-title {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.tech-solution-hero-desc {
  font-size: 18px;
  color: var(--tech-text-secondary);
  line-height: 1.8;
}

/* 锚点导航 */
.tech-solution-nav {
  position: sticky;
  top: 80px;
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--tech-border);
  z-index: 100;
}

.tech-solution-nav-list {
  display: flex;
  justify-content: center;
  gap: 0;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  list-style: none;
}

.tech-solution-nav-item {
  position: relative;
}

.tech-solution-nav-link {
  display: block;
  padding: 20px 30px;
  color: var(--tech-text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  border-bottom: 2px solid transparent;
}

.tech-solution-nav-link:hover,
.tech-solution-nav-link.active {
  color: var(--tech-primary);
  border-bottom-color: var(--tech-primary);
}

/* 内容区块 */
.tech-solution-section {
  padding: 100px 0;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 40px;
  padding-right: 40px;
}

.tech-solution-section:nth-child(even) {
  background: linear-gradient(180deg, transparent 0%, rgba(0, 240, 255, 0.02) 50%, transparent 100%);
}

.tech-solution-section-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.tech-solution-section-title::before {
  content: '';
  width: 4px;
  height: 36px;
  background: var(--tech-gradient-primary);
  border-radius: 2px;
}

.tech-solution-section-title .highlight {
  background: var(--tech-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tech-solution-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.tech-solution-content.reverse {
  direction: rtl;
}

.tech-solution-content.reverse > * {
  direction: ltr;
}

.tech-solution-text {
  font-size: 16px;
  line-height: 1.9;
  color: var(--tech-text-secondary);
}

.tech-solution-text p {
  margin-bottom: 20px;
}

.tech-solution-text strong {
  color: var(--tech-primary);
  font-weight: 600;
}

.tech-solution-image {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.tech-solution-image::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--tech-border);
  border-radius: 16px;
  z-index: 1;
}

.tech-solution-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}

.tech-solution-image:hover img {
  transform: scale(1.05);
}

/* 特性列表 */
.tech-solution-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.tech-solution-feature {
  display: flex;
  gap: 16px;
  padding: 24px;
  background: var(--tech-bg-glass);
  border: 1px solid var(--tech-border);
  border-radius: 12px;
  transition: all 0.3s ease;
}

.tech-solution-feature:hover {
  background: rgba(0, 240, 255, 0.05);
  border-color: var(--tech-primary);
  transform: translateX(10px);
}

.tech-solution-feature-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--tech-gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.tech-solution-feature-content h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.tech-solution-feature-content p {
  font-size: 14px;
  color: var(--tech-text-secondary);
  line-height: 1.6;
}

/* 全宽图片 */
.tech-solution-fullimage {
  margin: 40px 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--tech-border);
}

.tech-solution-fullimage img {
  width: 100%;
  height: auto;
  display: block;
}

/* 硬件设备网格 */
.tech-device-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.tech-device-card {
  background: var(--tech-bg-card);
  border: 1px solid var(--tech-border);
  border-radius: 16px;
  padding: 30px;
  text-align: center;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.tech-device-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--tech-gradient-glow);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.tech-device-card:hover {
  transform: translateY(-10px);
  border-color: var(--tech-primary);
  box-shadow: var(--tech-shadow-glow);
}

.tech-device-card:hover::before {
  opacity: 1;
}

.tech-device-card > * {
  position: relative;
  z-index: 1;
}

.tech-device-image {
  width: 100%;
  height: 180px;
  object-fit: contain;
  margin-bottom: 20px;
  transition: transform 0.4s ease;
}

.tech-device-card:hover .tech-device-image {
  transform: scale(1.1);
}

.tech-device-name {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.tech-device-desc {
  font-size: 14px;
  color: var(--tech-text-secondary);
}

/* 架构图 */
.tech-architecture {
  margin-top: 40px;
  padding: 40px;
  background: var(--tech-bg-card);
  border: 1px solid var(--tech-border);
  border-radius: 16px;
}

.tech-architecture-text {
  font-size: 15px;
  line-height: 1.9;
  color: var(--tech-text-secondary);
  margin-bottom: 30px;
}

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

.tech-architecture-image {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--tech-border);
}

.tech-architecture-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* 价值卡片 */
.tech-value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.tech-value-card {
  background: var(--tech-bg-card);
  border: 1px solid var(--tech-border);
  border-radius: 16px;
  padding: 40px 30px;
  text-align: center;
  transition: all 0.4s ease;
}

.tech-value-card:hover {
  transform: translateY(-10px);
  border-color: var(--tech-primary);
  box-shadow: var(--tech-shadow-glow);
}

.tech-value-number {
  font-size: 48px;
  font-weight: 800;
  background: var(--tech-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}

.tech-value-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.tech-value-desc {
  font-size: 14px;
  color: var(--tech-text-secondary);
  line-height: 1.6;
}

/* 时间线 */
.tech-timeline-vertical {
  position: relative;
  max-width: 800px;
  margin: 40px auto 0;
}

.tech-timeline-vertical::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--tech-gradient-primary);
  transform: translateX(-50%);
}

.tech-timeline-item-v {
  display: flex;
  margin-bottom: 50px;
  position: relative;
}

.tech-timeline-item-v:nth-child(odd) {
  justify-content: flex-start;
  padding-right: 50%;
}

.tech-timeline-item-v:nth-child(even) {
  justify-content: flex-end;
  padding-left: 50%;
}

.tech-timeline-dot-v {
  position: absolute;
  left: 50%;
  top: 0;
  width: 16px;
  height: 16px;
  background: var(--tech-bg-dark);
  border: 3px solid var(--tech-primary);
  border-radius: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 20px var(--tech-primary);
}

.tech-timeline-content-v {
  background: var(--tech-bg-card);
  border: 1px solid var(--tech-border);
  border-radius: 12px;
  padding: 25px;
  max-width: 350px;
}

.tech-timeline-title-v {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.tech-timeline-desc-v {
  font-size: 14px;
  color: var(--tech-text-secondary);
  line-height: 1.6;
}

/* 响应式 */
@media (max-width: 992px) {
  .tech-solution-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .tech-solution-content.reverse {
    direction: ltr;
  }
  
  .tech-solution-hero-title {
    font-size: 36px;
  }
  
  .tech-solution-nav-list {
    flex-wrap: wrap;
    padding: 0 20px;
  }
  
  .tech-solution-nav-link {
    padding: 15px 20px;
    font-size: 13px;
  }
  
  .tech-device-grid,
  .tech-value-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tech-solution-features {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .tech-solution-hero {
    height: 400px;
  }
  
  .tech-solution-hero-title {
    font-size: 28px;
  }
  
  .tech-solution-section {
    padding: 60px 20px;
  }
  
  .tech-solution-section-title {
    font-size: 28px;
  }
  
  .tech-device-grid,
  .tech-value-grid {
    grid-template-columns: 1fr;
  }
  
  .tech-timeline-vertical::before {
    left: 20px;
  }
  
  .tech-timeline-item-v,
  .tech-timeline-item-v:nth-child(even) {
    padding-left: 60px;
    padding-right: 0;
    justify-content: flex-start;
  }
  
  .tech-timeline-dot-v {
    left: 20px;
  }
}