/* ===== Fangan Page Styles ===== */

/* Base container width */
.tengzhi-section-pad {
  max-width: 1450px;
  margin: 0 auto;
  padding: 80px 60px;
}

/* Hero Banner */
.tengzhi-fangan-hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 100px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tengzhi-fangan-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255,255,255,0.08) 0%, transparent 50%);
  pointer-events: none;
}

.tengzhi-hero-content {
  max-width: 1450px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  width: 100%;
}

.tengzhi-hero-title {
  font-size: 48px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.tengzhi-hero-subtitle {
  font-size: 20px;
  color: rgba(255,255,255,0.9);
  margin-bottom: 32px;
  line-height: 1.6;
}

.tengzhi-hero-badges {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.tengzhi-badge {
  display: inline-block;
  padding: 10px 24px;
  background: rgba(255,255,255,0.2);
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 30px;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  backdrop-filter: blur(10px);
  transition: all 0.3s;
}

.tengzhi-badge:hover {
  background: rgba(255,255,255,0.3);
  transform: translateY(-2px);
}

/* Section Base */
.tengzhi-fangan-section {
  padding: 80px 60px;
  max-width: 1450px;
  margin: 0 auto;
}

.tengzhi-bg-alt {
  background: #f8fafc;
}

/* Section Header */
.tengzhi-section-header {
  text-align: center;
  margin-bottom: 60px;
}

.tengzhi-section-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(120,201,80,0.1);
  color: var(--primary-color);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.tengzhi-section-title {
  font-size: 36px;
  font-weight: 800;
  color: #1a1a1a;
  margin-bottom: 16px;
}

.tengzhi-section-subtitle {
  font-size: 16px;
  color: var(--text-light);
  line-height: 1.6;
  max-width: 1450px;
  margin: 0 auto;
}

/* Solution Grid */
.tengzhi-fangan-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 1450px;
  margin: 0 auto 60px;
}

.tengzhi-fangan-card {
  background: #fff;
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  transition: all 0.3s;
  border: 1px solid rgba(0,0,0,0.05);
}

.tengzhi-fangan-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
}

.tengzhi-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary-color), #5ab840);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: #fff;
}

.tengzhi-card-icon svg {
  width: 28px;
  height: 28px;
}

.tengzhi-card-title {
  font-size: 22px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 20px;
}

.tengzhi-card-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tengzhi-card-list li {
  padding: 10px 0;
  padding-left: 24px;
  position: relative;
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.6;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.tengzhi-card-list li:last-child {
  border-bottom: none;
}

.tengzhi-card-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: 700;
  font-size: 16px;
}

/* Tech Architecture */
.tengzhi-tech-arch {
  max-width: 1450px;
  margin: 0 auto;
  background: #fff;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.tengzhi-arch-title {
  font-size: 24px;
  font-weight: 700;
  color: #1a1a1a;
  text-align: center;
  margin-bottom: 40px;
}

.tengzhi-arch-layers {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.tengzhi-arch-layer {
  padding: 24px;
  border-radius: 12px;
  border: 2px solid;
}

.tengzhi-layer-device {
  background: rgba(120,201,80,0.05);
  border-color: rgba(120,201,80,0.2);
}

.tengzhi-layer-control {
  background: rgba(255,216,90,0.05);
  border-color: rgba(255,216,90,0.2);
}

.tengzhi-layer-platform {
  background: rgba(102,126,234,0.05);
  border-color: rgba(102,126,234,0.2);
}

.tengzhi-layer-label {
  display: block;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #1a1a1a;
}

.tengzhi-layer-items {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.tengzhi-item {
  display: inline-block;
  padding: 8px 16px;
  background: #fff;
  border-radius: 20px;
  font-size: 14px;
  color: var(--text-dark);
  border: 1px solid rgba(0,0,0,0.1);
}

/* Scenarios */
.tengzhi-scenarios {
  max-width: 1450px;
  margin: 60px auto 0;
}

.tengzhi-scenarios-title {
  font-size: 24px;
  font-weight: 700;
  color: #1a1a1a;
  text-align: center;
  margin-bottom: 40px;
}

.tengzhi-scenario-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.tengzhi-scenario-card {
  background: #fff;
  border-radius: 12px;
  padding: 28px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: all 0.3s;
  border: 1px solid rgba(0,0,0,0.05);
}

.tengzhi-scenario-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.tengzhi-scenario-icon {
  width: 48px;
  height: 48px;
  color: var(--primary-color);
  margin-bottom: 16px;
}

.tengzhi-scenario-name {
  font-size: 18px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 12px;
}

.tengzhi-scenario-desc {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
}

/* Acquisition Flow */
.tengzhi-acquisition-flow {
  max-width: 1450px;
  margin: 0 auto 60px;
}

.tengzhi-flow-steps {
  display: flex;
  align-items: stretch;
  gap: 24px;
}

.tengzhi-flow-step {
  flex: 1;
  background: #fff;
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  position: relative;
}

.tengzhi-step-number {
  font-size: 48px;
  font-weight: 800;
  color: rgba(120,201,80,0.15);
  margin-bottom: 16px;
  line-height: 1;
}

.tengzhi-step-title {
  font-size: 20px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 20px;
}

.tengzhi-step-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tengzhi-step-list li {
  padding: 8px 0;
  padding-left: 20px;
  position: relative;
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.6;
}

.tengzhi-step-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: 700;
  font-size: 20px;
  line-height: 1;
}

.tengzhi-flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  font-size: 32px;
  flex-shrink: 0;
}

.tengzhi-flow-arrow svg {
  width: 32px;
  height: 32px;
}

/* Tools Grid */
.tengzhi-tools-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1450px;
  margin: 0 auto;
}

.tengzhi-tool-card {
  background: #fff;
  border-radius: 12px;
  padding: 28px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: all 0.3s;
  border: 1px solid rgba(0,0,0,0.05);
}

.tengzhi-tool-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.tengzhi-tool-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), #5ab840);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: #fff;
}

.tengzhi-tool-icon svg {
  width: 28px;
  height: 28px;
}

.tengzhi-tool-name {
  font-size: 18px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 12px;
}

.tengzhi-tool-desc {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
}

/* Supply Chain Diagram */
.tengzhi-supply-chain-diagram {
  max-width: 1450px;
  margin: 0 auto 60px;
  background: #fff;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.tengzhi-chain-nodes {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.tengzhi-chain-node {
  flex: 1;
  text-align: center;
  padding: 28px;
  border-radius: 12px;
  border: 2px solid;
  transition: all 0.3s;
}

.tengzhi-chain-node:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.tengzhi-node-supplier {
  background: rgba(120,201,80,0.05);
  border-color: rgba(120,201,80,0.2);
}

.tengzhi-node-factory {
  background: rgba(255,216,90,0.05);
  border-color: rgba(255,216,90,0.2);
}

.tengzhi-node-customer {
  background: rgba(102,126,234,0.05);
  border-color: rgba(102,126,234,0.2);
}

.tengzhi-node-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), #5ab840);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: #fff;
}

.tengzhi-node-icon svg {
  width: 32px;
  height: 32px;
}

.tengzhi-node-title {
  font-size: 20px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 16px;
}

.tengzhi-node-features {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tengzhi-node-features li {
  padding: 6px 0;
  color: var(--text-light);
  font-size: 14px;
}

.tengzhi-chain-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--primary-color);
  flex-shrink: 0;
}

.tengzhi-chain-connector svg {
  width: 24px;
  height: 24px;
}

.tengzhi-connector-label {
  font-size: 12px;
  color: var(--text-light);
  white-space: nowrap;
}

/* Collaboration Features */
.tengzhi-collab-features {
  max-width: 1450px;
  margin: 0 auto 60px;
}

.tengzhi-feature-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.tengzhi-feature-item {
  background: #fff;
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: all 0.3s;
  border: 1px solid rgba(0,0,0,0.05);
}

.tengzhi-feature-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.tengzhi-feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(120,201,80,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--primary-color);
}

.tengzhi-feature-icon svg {
  width: 24px;
  height: 24px;
}

.tengzhi-feature-title {
  font-size: 18px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 12px;
}

.tengzhi-feature-desc {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
}

/* Results Grid */
.tengzhi-results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1450px;
  margin: 0 auto;
}

.tengzhi-result-card {
  background: linear-gradient(135deg, var(--primary-color), #5ab840);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
  color: #fff;
  box-shadow: 0 4px 16px rgba(120,201,80,0.3);
  transition: all 0.3s;
}

.tengzhi-result-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 24px rgba(120,201,80,0.4);
}

.tengzhi-result-number {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 8px;
  line-height: 1;
}

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

/* CTA Section */
.tengzhi-section-cta {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 80px 60px;
  text-align: center;
}

.tengzhi-cta-content {
  max-width: 1450px;
  margin: 0 auto;
}

.tengzhi-cta-title {
  font-size: 36px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}

.tengzhi-cta-subtitle {
  font-size: 18px;
  color: rgba(255,255,255,0.9);
  margin-bottom: 32px;
  line-height: 1.6;
}

.tengzhi-cta-btn-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.tengzhi-cta-btn-primary,
.tengzhi-cta-btn-secondary {
  padding: 16px 40px;
  border-radius: 30px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
}

.tengzhi-cta-btn-primary {
  background: var(--accent-color);
  color: #333;
}

.tengzhi-cta-btn-primary:hover {
  background: #ffed4a;
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(255,216,90,0.4);
}

.tengzhi-cta-btn-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.6);
}

.tengzhi-cta-btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
  transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 1200px) {
  .tengzhi-section-pad {
    padding: 60px 40px;
  }
  
  .tengzhi-fangan-hero {
    padding: 80px 40px;
  }
  
  .tengzhi-fangan-section {
    padding: 60px 40px;
  }
  
  .tengzhi-fangan-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tengzhi-scenario-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tengzhi-flow-steps {
    flex-direction: column;
  }
  
  .tengzhi-flow-arrow {
    transform: rotate(90deg);
  }
  
  .tengzhi-tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tengzhi-chain-nodes {
    flex-direction: column;
  }
  
  .tengzhi-chain-connector {
    transform: rotate(90deg);
  }
  
  .tengzhi-feature-row {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tengzhi-results-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .tengzhi-section-pad {
    padding: 40px 20px;
  }
  
  .tengzhi-fangan-hero {
    padding: 60px 20px;
    min-height: 300px;
  }
  
  .tengzhi-hero-title {
    font-size: 32px;
  }
  
  .tengzhi-hero-subtitle {
    font-size: 16px;
  }
  
  .tengzhi-fangan-section {
    padding: 40px 20px;
  }
  
  .tengzhi-section-title {
    font-size: 28px;
  }
  
  .tengzhi-fangan-grid {
    grid-template-columns: 1fr;
  }
  
  .tengzhi-scenario-cards {
    grid-template-columns: 1fr;
  }
  
  .tengzhi-tools-grid {
    grid-template-columns: 1fr;
  }
  
  .tengzhi-feature-row {
    grid-template-columns: 1fr;
  }
  
  .tengzhi-results-grid {
    grid-template-columns: 1fr;
  }
  
  .tengzhi-tech-arch,
  .tengzhi-supply-chain-diagram {
    padding: 24px;
  }
  
  .tengzhi-layer-items {
    flex-direction: column;
  }
  
  .tengzhi-result-number {
    font-size: 36px;
  }
  
  .tengzhi-cta-title {
    font-size: 28px;
  }
  
  .tengzhi-cta-btn-group {
    flex-direction: column;
  }
  
  .tengzhi-cta-btn-primary,
  .tengzhi-cta-btn-secondary {
    width: 100%;
  }
}