.hero {
  background: var(--gradient-hero);
  color: var(--color-surface);
  padding: 140px 0 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 600px;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 20% 50%, color-mix(in srgb, var(--color-surface) 10%, transparent) 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, color-mix(in srgb, var(--color-surface) 8%, transparent) 0%, transparent 40%);
  pointer-events: none;
}

.hero-content-wrapper {
  position: relative;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 56px;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
  line-height: 1.3;
}

.hero-subtitle {
  font-size: 24px;
  margin-bottom: 30px;
  opacity: 0.95;
  font-weight: 400;
}

.hero-pain-point {
  font-size: 16px;
  line-height: 2;
  margin-bottom: 48px;
  opacity: 0.85;
  max-width: 750px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-bottom: 60px;
}

.hero-buttons .btn {
  min-width: 200px;
}

.hero .btn-secondary {
  background: transparent;
  color: var(--color-surface);
  border: 2px solid var(--color-surface);
}

.hero .btn-secondary:hover {
  background: var(--color-surface);
  color: var(--color-primary);
}

.trust-badges {
  display: flex;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
}

.badge {
  text-align: center;
}

.badge-number {
  font-size: 40px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.badge-label {
  font-size: 16px;
  opacity: 0.9;
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 20px;
  }

  .hero-pain-point {
    font-size: 16px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .trust-badges {
    gap: 30px;
  }

  .badge-number {
    font-size: 36px;
  }
}

.brand-slogan {
  padding: 4rem 0;
  background: var(--color-bg);
  text-align: center;
}

.slogan-title {
  font-size: 2.5rem;
  color: var(--color-text);
  margin-bottom: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
}

.slogan-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.slogan-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.8;
}

.core-services {
  padding: 5rem 0;
  background: var(--color-surface);
}

.service-item {
  text-align: center;
  padding: 2rem 1.5rem;
  transition: all 0.3s ease;
  cursor: pointer;
}

.service-item:hover {
  transform: translateY(-8px);
}

.product-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--color-primary) 8%, var(--color-bg));
  border-radius: 50%;
  overflow: hidden;
  font-size: 36px;
}

.product-icon img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.service-title {
  font-size: 1.125rem;
  color: var(--color-text);
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.service-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.system-preview {
  background: var(--color-bg);
  padding: 80px 0;
}

.section-header .subtitle {
  font-size: 20px;
  color: var(--color-primary);
  margin-bottom: 16px;
  font-weight: 600;
}

.section-header .description {
  font-size: 16px;
  color: var(--color-text-muted);
  max-width: 700px;
  margin: 0 auto;
}

.layers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  align-items: stretch;
}

.layer-card {
  background: var(--color-surface);
  border-radius: 16px;
  padding: 40px 32px;
  box-shadow: var(--shadow);
  transition: all 0.3s;
  cursor: pointer;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-top: 4px solid var(--color-primary);
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 480px;
}

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

.layer-level {
  display: inline-block;
  background: var(--gradient-hero);
  color: var(--color-surface);
  padding: 6px 16px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  align-self: flex-start;
}

.layer-name {
  font-size: 28px;
  margin-bottom: 12px;
  color: var(--color-text);
  min-height: 40px;
}

.layer-positioning {
  font-size: 16px;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 20px;
  min-height: 24px;
}

.layer-modules {
  list-style: none;
  margin-bottom: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.layer-modules li {
  padding: 12px 0 12px 20px;
  border-bottom: 1px solid var(--border-color);
  color: var(--color-text-muted);
  position: relative;
  font-size: 15px;
  line-height: 1.8;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.layer-modules li:last-child {
  border-bottom: none;
}

.layer-modules li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-primary);
  font-weight: bold;
  font-size: 16px;
}

.layer-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 2px solid var(--border-color);
  margin-top: auto;
}

.suitable {
  font-size: 14px;
  color: var(--color-text-muted);
  flex: 1;
}

.ratio {
  font-size: 14px;
  color: var(--color-cta);
  font-weight: 600;
  white-space: nowrap;
}

@media (max-width: 1024px) {
  .layers-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .layer-card {
    padding: 28px 20px;
  }

  .layer-name {
    font-size: 24px;
  }
}

@media (max-width: 768px) {
  .layers-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }

  .layer-card {
    padding: 32px 24px;
  }

  .layer-name {
    font-size: 24px;
  }
}

.cta-section {
  background: var(--gradient-hero);
  color: var(--color-surface);
  text-align: center;
  padding: 100px 0;
}

.cta-content h2 {
  font-size: 36px;
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 18px;
  margin-bottom: 30px;
  opacity: 0.95;
}

.cta-section .btn-primary {
  background: var(--color-surface);
  color: var(--color-primary);
  border: 1px solid var(--color-surface);
}

.cta-section .btn-primary:hover {
  background: var(--color-bg);
}

@media (max-width: 768px) {
  .cta-content h2 {
    font-size: 28px;
  }
}

.latest-news {
  background: var(--color-surface);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.news-card {
  background: var(--color-bg);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s;
  border: 1px solid var(--border-color);
  cursor: pointer;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.news-category {
  display: inline-block;
  background: var(--gradient-hero);
  color: var(--color-surface);
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 16px;
}

.news-title {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--color-text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.news-excerpt {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.news-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.news-date {
  font-size: 14px;
  color: var(--color-text-muted);
}

.news-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s;
}

.news-link:hover {
  color: var(--color-cta);
}

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

@media (max-width: 768px) {
  .news-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

.scene-selector {
  background: var(--color-bg);
  padding: 80px 0;
}

/* 场景快速选择区域 */
.scene-quick-select {
  background: var(--color-bg);
  padding: 80px 0;
}

.scenes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 50px;
  align-items: stretch;
}

.scene-card {
  position: relative;
  background: var(--color-surface);
  border: 2px solid var(--border-color);
  border-radius: 16px;
  padding: 32px 24px 24px;
  text-align: center;
  text-decoration: none;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  min-height: 380px;
  overflow: hidden;
}

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

.scene-card.hot {
  border-color: var(--color-primary);
  background: linear-gradient(135deg, color-mix(in srgb, var(--color-primary) 5%, var(--color-surface)) 0%, var(--color-surface) 100%);
}

.scene-card.hot::before {
  content: '🔥 热门';
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--color-primary);
  color: var(--color-surface);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.scene-icon {
  font-size: 48px;
  line-height: 1;
  margin-bottom: 4px;
}

.scene-name {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.scene-subtitle {
  font-size: 14px;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.5;
}

.scene-price {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin: 0;
  padding: 6px 16px;
  background: color-mix(in srgb, var(--color-primary) 8%, var(--color-bg));
  border-radius: 20px;
}

.scene-config,
.scene-monitor {
  width: 100%;
  text-align: left;
  padding: 8px 12px;
  background: var(--color-bg);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.config-label,
.monitor-label {
  font-size: 12px;
  color: var(--color-text-muted);
  margin: 0 0 4px 0;
  font-weight: 500;
}

.config-value,
.monitor-value {
  font-size: 13px;
  color: var(--color-text);
  margin: 0;
  line-height: 1.5;
  font-weight: 500;
}

.scene-btn {
  width: 100%;
  padding: 12px;
  background: var(--color-primary);
  color: var(--color-surface);
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  margin-top: auto;
  cursor: pointer;
  text-align: center;
  transition: all 0.3s ease;
  min-height: 44px;
}

.scene-btn:hover {
  background: var(--color-cta);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--color-primary) 30%, transparent);
}

/* 响应式布局 */
@media (max-width: 1024px) {
  .scenes-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .scenes-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .scene-card {
    height: auto;
    min-height: 320px;
    padding: 24px 20px 20px;
  }

  .scene-icon {
    font-size: 40px;
  }

  .scene-name {
    font-size: 18px;
  }

  .scene-config,
  .scene-monitor {
    padding: 6px 10px;
  }

  .config-label,
  .monitor-label {
    font-size: 11px;
  }

  .config-value,
  .monitor-value {
    font-size: 12px;
  }

  .scene-btn {
    padding: 10px;
    font-size: 14px;
  }
}

.scene-tabs {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.scene-tab-btn {
  padding: 12px 32px;
  border: 2px solid var(--border-color);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: 50px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  min-height: 44px;
}

.scene-tab-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.scene-tab-btn.active {
  background: var(--color-primary);
  color: var(--color-surface);
  border-color: var(--color-primary);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.product-card {
  background: var(--color-surface);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

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

.product-image {
  width: 100%;
  height: 220px;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.product-info {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
  line-height: 1.4;
}

.product-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
  flex: 1;
  align-content: flex-start;
}

.spec-tag {
  padding: 4px 12px;
  background: color-mix(in srgb, var(--color-primary) 8%, var(--color-bg));
  color: var(--color-primary);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid var(--border-color);
}

.product-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 16px;
  margin-top: auto;
}

.product-btn {
  margin-top: auto;
  align-self: flex-start;
}

.price-label {
  font-size: 13px;
  color: var(--color-text-muted);
}

.price-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
}

.price-unit {
  font-size: 13px;
  color: var(--color-text-muted);
}

.product-btn {
  display: block;
  width: 100%;
  padding: 12px;
  background: var(--color-primary);
  color: var(--color-surface);
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  min-height: 44px;
}

.product-btn:hover {
  background: var(--color-cta);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--color-primary) 30%, transparent);
}

@media (max-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .scene-tabs {
    gap: 12px;
  }

  .scene-tab-btn {
    padding: 10px 24px;
    font-size: 14px;
  }

  .products-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
  }

  .product-image {
    height: 200px;
  }

  .product-info {
    padding: 20px;
  }

  .product-title {
    font-size: 16px;
  }

  .price-value {
    font-size: 24px;
  }
}

.floating-contact {
  position: fixed;
  right: 30px;
  bottom: 80px;
  z-index: 999;
  transition: all 0.3s ease;
}

.floating-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: var(--color-primary);
  color: var(--color-surface);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 4px 20px color-mix(in srgb, var(--color-primary) 40%, transparent);
  transition: all 0.3s ease;
  position: relative;
}

.floating-btn:hover {
  background: var(--color-cta);
  transform: scale(1.1);
  box-shadow: 0 6px 30px color-mix(in srgb, var(--color-primary) 50%, transparent);
}

.floating-icon {
  width: 28px;
  height: 28px;
  margin-bottom: 2px;
}

.floating-text {
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
}

@media (max-width: 768px) {
  .floating-contact {
    right: 20px;
    bottom: 60px;
  }

  .floating-btn {
    width: 56px;
    height: 56px;
  }

  .floating-icon {
    width: 24px;
    height: 24px;
  }

  .floating-text {
    font-size: 11px;
  }
}

/* FAQ速答区 */
.faq-quick-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #f5f7fa 0%, #ffffff 100%);
}

.faq-quick-section .section-header {
  text-align: center;
  margin-bottom: 50px;
}

.faq-quick-section .section-header h2 {
  font-size: 36px;
  font-weight: 700;
  color: #1a202c;
  margin-bottom: 12px;
}

.faq-quick-section .section-header .subtitle {
  font-size: 16px;
  color: #718096;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.faq-card {
  background: #ffffff;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  border: 1px solid #e2e8f0;
}

.faq-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
  border-color: var(--color-primary);
}

.faq-question {
  font-size: 16px;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 12px;
  line-height: 1.4;
}

.faq-answer {
  font-size: 14px;
  color: #4a5568;
  line-height: 1.6;
  margin: 0;
}

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

.faq-more .btn-outline {
  display: inline-block;
  padding: 12px 32px;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}

.faq-more .btn-outline:hover {
  background: var(--color-primary);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 135, 66, 0.3);
}

/* 响应式 - FAQ模块 */
@media (max-width: 1200px) {
  .faq-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 992px) {
  .faq-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .faq-quick-section {
    padding: 60px 0;
  }
  
  .faq-quick-section .section-header h2 {
    font-size: 30px;
  }
}

@media (max-width: 768px) {
  .faq-quick-section {
    padding: 50px 0;
  }
  
  .faq-quick-section .section-header {
    margin-bottom: 30px;
  }
  
  .faq-quick-section .section-header h2 {
    font-size: 26px;
  }
  
  .faq-quick-section .section-header .subtitle {
    font-size: 14px;
  }
  
  .faq-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .faq-card {
    padding: 20px;
  }
  
  .faq-question {
    font-size: 15px;
  }
  
  .faq-answer {
    font-size: 13px;
  }
}