/* 全方位物流解决方案页面样式 */
:root {
  --primary-color: #0a3d62; /* 深蓝色主色调 */
  --secondary-color: #e74c3c; /* 中国红点缀 */
  --accent-color: #2ecc71; /* 绿色点缀，用于可持续发展相关元素 */
  --text-color: #333;
  --light-text: #fff;
  --light-bg: #f8f9fa;
  --dark-bg: #1a2a3a;
  --border-radius: 8px;
  --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

/* Banner 样式 */
.banner-container {
  position: relative;
  max-height: 100%;
  overflow: hidden;
}

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(10, 61, 98, 0.8), rgba(46, 204, 113, 0.6));
  z-index: 1;
}

.banner-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.banner-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--light-text);
  z-index: 2;
  width: 90%;
  max-width: 1000px;
}

.banner-content h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.banner-content p {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 2px;
}

/* 导航样式 */
.page-navigation {
  background-color: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  padding: 15px 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
}

.breadcrumb-icon {
  margin-right: 10px;
}

.breadcrumb-icon i {
  display: inline-block;
  width: 16px;
  height: 16px;
  background: url('../images/home-icon.svg') no-repeat center;
  background-size: contain;
}

.nav-container {
  border-top: 1px solid #eee;
  padding-top: 15px;
}

.service-nav {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
  overflow-x: auto;
}

.service-nav li {
  margin-right: 30px;
}

.service-nav a {
  display: block;
  padding: 8px 0;
  color: var(--text-color);
  text-decoration: none;
  font-size: 16px;
  position: relative;
  white-space: nowrap;
}

.service-nav a.active {
  color: var(--primary-color);
  font-weight: 600;
}

.service-nav a.active:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-color);
}

/* 服务介绍部分 */
.service-intro {
  padding: 80px 0;
  background-color: var(--light-bg);
}

.intro-content {
  display: flex;
  align-items: center;
  gap: 60px;
}

.intro-text {
  flex: 1;
}

.section-subtitle {
  color: var(--secondary-color);
  font-weight: 600;
  font-size: 18px;
  margin-bottom: 15px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.intro-text h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.intro-text p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-color);
  margin-bottom: 30px;
}

.intro-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.intro-feature {
  display: flex;
  align-items: center;
  gap: 15px;
}

.feature-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: rgba(10, 61, 98, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon i {
  display: block;
  width: 24px;
  height: 24px;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

/* 图标样式 */
.icon-digital {
  background-image: url('../images/icon-digital.svg');
}

.icon-flexible {
  background-image: url('../images/icon-flexible.svg');
}

.icon-optimize {
  background-image: url('../images/icon-optimize.svg');
}

.icon-sustainable {
  background-image: url('../images/icon-sustainable.svg');
}

.icon-digital-trans {
  background-image: url('../images/icon-digital-trans.svg');
}

.icon-network-opt {
  background-image: url('../images/icon-network-opt.svg');
}

.icon-inventory {
  background-image: url('../images/icon-inventory.svg');
}

.icon-resilient {
  background-image: url('../images/icon-resilient.svg');
}

.icon-green {
  background-image: url('../images/icon-green.svg');
}

.icon-visibility {
  background-image: url('../images/icon-visibility.svg');
}

.icon-automation {
  background-image: url('../images/icon-automation.svg');
}

.icon-analytics {
  background-image: url('../images/icon-analytics.svg');
}

.icon-location {
  background-image: url('../images/icon-location.svg');
}

.icon-route-opt {
  background-image: url('../images/icon-route-opt.svg');
}

.icon-balance {
  background-image: url('../images/icon-balance.svg');
}

.icon-forecast {
  background-image: url('../images/icon-forecast.svg');
}

.icon-dynamic {
  background-image: url('../images/icon-dynamic.svg');
}

.icon-pooling {
  background-image: url('../images/icon-pooling.svg');
}

.icon-risk {
  background-image: url('../images/icon-risk.svg');
}

.icon-backup {
  background-image: url('../images/icon-backup.svg');
}

.icon-recovery {
  background-image: url('../images/icon-recovery.svg');
}

.icon-carbon {
  background-image: url('../images/icon-carbon.svg');
}

.icon-package {
  background-image: url('../images/icon-package.svg');
}

.icon-energy {
  background-image: url('../images/icon-energy.svg');
}

.icon-diagnose {
  background-image: url('../images/icon-diagnose.svg');
}

.icon-strategy {
  background-image: url('../images/icon-strategy.svg');
}

.icon-roadmap {
  background-image: url('../images/icon-roadmap.svg');
}

.icon-implement {
  background-image: url('../images/icon-implement.svg');
}

.icon-measure {
  background-image: url('../images/icon-measure.svg');
}

.icon-improve {
  background-image: url('../images/icon-improve.svg');
}

.icon-cost-saving {
  background-image: url('../images/icon-cost-saving.svg');
}

.icon-service {
  background-image: url('../images/icon-service.svg');
}

.icon-agility {
  background-image: url('../images/icon-agility.svg');
}

.icon-risk-reduction {
  background-image: url('../images/icon-risk-reduction.svg');
}

.icon-sustainable-value {
  background-image: url('../images/icon-sustainable-value.svg');
}

.intro-image {
  flex: 1;
  position: relative;
}

.intro-image img {
  width: 100%;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.experience-badge {
  position: absolute;
  bottom: -30px;
  right: 30px;
  background-color: var(--secondary-color);
  color: white;
  padding: 20px;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  text-align: center;
}

.badge-number {
  font-size: 36px;
  font-weight: 700;
  line-height: 1;
}

.badge-number span {
  font-size: 20px;
}

.badge-text {
  font-size: 14px;
  margin-top: 5px;
}

/* 解决方案领域部分 */
.solution-areas {
  padding: 80px 0;
  background-color: #fff;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary-color);
  margin: 15px 0;
}

.section-desc {
  font-size: 18px;
  color: #666;
  max-width: 700px;
  margin: 0 auto;
}

.solution-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.solution-card {
  background-color: var(--light-bg);
  border-radius: var(--border-radius);
  padding: 30px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  z-index: 1;
  margin-bottom: 30px;
}

.solution-card:nth-child(4), .solution-card:nth-child(5) {
  grid-column: span 1.5;
}

.solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--primary-color);
  opacity: 0;
  z-index: -1;
  transition: var(--transition);
}

.solution-card:hover::before {
  opacity: 0.95;
}

.solution-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--box-shadow);
}

.solution-card:hover h3,
.solution-card:hover p,
.solution-card:hover .card-link {
  color: white;
}

.solution-card:hover .card-icon {
  background-color: rgba(255, 255, 255, 0.2);
}

.solution-card:hover .card-icon i {
  filter: brightness(0) invert(1);
}

.card-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: rgba(10, 61, 98, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: var(--transition);
}

.card-icon i {
  display: block;
  width: 40px;
  height: 40px;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  transition: var(--transition);
}

.solution-card h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 15px;
  transition: var(--transition);
}

.solution-card p {
  font-size: 15px;
  line-height: 1.7;
  color: #555;
  margin-bottom: 20px;
  transition: var(--transition);
}

.card-link {
  display: inline-block;
  color: var(--secondary-color);
  font-weight: 600;
  text-decoration: none;
  position: relative;
  padding-right: 20px;
  transition: var(--transition);
}

.card-link::after {
  content: '';
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  background: url('../images/icon-arrow.svg') no-repeat center;
  background-size: contain;
  transition: var(--transition);
}

.solution-card:hover .card-link::after {
  filter: brightness(0) invert(1);
  transform: translateY(-50%) translateX(5px);
}

/* 解决方案详情部分 */
.solution-detail {
  padding: 80px 0;
  background-color: var(--light-bg);
}

.solution-detail:nth-child(odd) {
  background-color: #fff;
}

.detail-container {
  display: flex;
  align-items: center;
  gap: 60px;
}

.solution-detail.reverse .detail-container {
  flex-direction: row-reverse;
}

.detail-image {
  flex: 1;
}

.detail-image img {
  width: 100%;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.detail-content {
  flex: 1;
}

.detail-content h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary-color);
  margin: 15px 0 20px;
}

.detail-content p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-color);
  margin-bottom: 30px;
}

.solution-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.feature-text h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.feature-text p {
  font-size: 14px;
  color: #666;
  margin: 0;
}

/* 实施方法论部分 */
.solution-methodology {
  padding: 80px 0;
  background-color: var(--dark-bg);
  color: var(--light-text);
}

.solution-methodology .section-header h2 {
  color: var(--light-text);
}

.solution-methodology .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

.methodology-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.methodology-step {
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius);
  padding: 30px;
  position: relative;
  transition: var(--transition);
}

.methodology-step:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-5px);
}

.step-number {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 48px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.1);
  line-height: 1;
}

.step-content {
  position: relative;
  z-index: 1;
}

.step-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.step-icon i {
  display: block;
  width: 30px;
  height: 30px;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  filter: brightness(0) invert(1);
}

.methodology-step h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 15px;
}

.methodology-step p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
}

/* 案例部分 */
.solution-cases {
  padding: 80px 0;
  background-color: var(--light-bg);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.case-card {
  background-color: #fff;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.case-card:hover {
  transform: translateY(-10px);
}

.case-image {
  height: 250px;
  overflow: hidden;
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.case-card:hover .case-image img {
  transform: scale(1.05);
}

.case-content {
  padding: 30px;
}

.case-tag {
  display: inline-block;
  background-color: var(--primary-color);
  color: white;
  font-size: 14px;
  font-weight: 600;
  padding: 5px 15px;
  border-radius: 20px;
  margin-bottom: 15px;
}

.case-content h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.case-content p {
  font-size: 15px;
  line-height: 1.7;
  color: #555;
}

/* 方案价值部分 */
.solution-benefits {
  padding: 80px 0;
  background-color: #fff;
}

.benefits-container {
  display: flex;
  align-items: center;
  gap: 60px;
}

.benefits-content {
  flex: 1.2;
}

.benefits-content h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary-color);
  margin: 15px 0 20px;
}

.benefits-content > p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-color);
  margin-bottom: 30px;
}

.benefits-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.benefit-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: rgba(10, 61, 98, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.benefit-icon i {
  display: block;
  width: 24px;
  height: 24px;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.benefit-text h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.benefit-text p {
  font-size: 14px;
  color: #666;
  margin: 0;
}

.benefits-image {
  flex: 0.8;
}

.benefits-image img {
  width: 100%;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

/* 联系部分 */
.solution-contact {
  padding: 80px 0;
  background-color: var(--primary-color);
  color: var(--light-text);
}

.contact-content {
  text-align: center;
}

.contact-content h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 20px;
}

.contact-content p {
  font-size: 18px;
  max-width: 700px;
  margin: 0 auto 30px;
  color: rgba(255, 255, 255, 0.8);
}

.contact-btn {
  display: inline-block;
  background-color: var(--secondary-color);
  color: white;
  font-size: 18px;
  font-weight: 600;
  padding: 15px 40px;
  border-radius: 30px;
  text-decoration: none;
  transition: var(--transition);
}

.contact-btn:hover {
  background-color: #c0392b;
  transform: translateY(-5px);
}

/* 合作客户部分 */
.partners-section {
  padding: 80px 0;
  background-color: var(--light-bg);
}

.partners-container {
  margin-top: 40px;
}

.partners-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary-color);
  margin: 30px 0 15px;
  position: relative;
  padding-left: 15px;
}

.partners-title:before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 20px;
  background-color: var(--secondary-color);
}

.partners-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin: 0 -15px;
}

.partner-logo {
  width: calc(25% - 30px);
  margin: 0 15px 30px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #fff;
  border-radius: var(--border-radius);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  padding: 15px;
  transition: var(--transition);
}

.partner-logo:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.partner-logo img {
  max-width: 100%;
  max-height: 70px;
  object-fit: contain;
}

/* 响应式样式 */
@media (max-width: 1200px) {
  .solution-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .solution-card:nth-child(4), .solution-card:nth-child(5) {
    grid-column: auto;
  }
  
  .methodology-steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .intro-content {
    flex-direction: column;
  }
  
  .detail-container {
    flex-direction: column;
  }
  
  .solution-detail.reverse .detail-container {
    flex-direction: column;
  }
  
  .benefits-container {
    flex-direction: column;
  }
  
  .banner-content h1 {
    font-size: 2.5rem;
  }
  
  .banner-content p {
    font-size: 1.2rem;
  }
  
  .partner-logo {
    width: calc(50% - 30px);
  }
}

@media (max-width: 600px) {
  .intro-features {
    grid-template-columns: 1fr;
  }
  
  .solution-cards {
    grid-template-columns: 1fr;
  }
  
  .methodology-steps {
    grid-template-columns: 1fr;
  }
  
  .cases-grid {
    grid-template-columns: 1fr;
  }
  
  .section-header h2 {
    font-size: 28px;
  }
  
  .section-desc {
    font-size: 16px;
  }
  
  .partner-logo {
    width: 100%;
    margin: 0 0 20px;
  }
} 