/* 客户案例页面样式 */

/* ========== 案例Banner ========== */
.cases-banner {
  background: linear-gradient(135deg, #F0F9F4 0%, #FFFFFF 100%);
  padding: 120px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cases-banner .container {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}

/* 主标题 - 强化层级和视觉冲击力 */
.cases-banner .banner__title {
  font-size: 36px;
  font-weight: 700;
  color: #1B5E20;
  margin: 0 0 20px 0;
  line-height: 1.2;
  letter-spacing: -0.5px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

/* 副标题 - 优化间距和品牌高亮 */
.cases-banner .banner__subtitle {
  font-size: 16px;
  color: #666666;
  margin: 30px 0 0 0;
  line-height: 1.6;
  font-weight: 400;
}

.cases-banner .banner__subtitle .brand-highlight {
  color: #1B5E20;
  font-weight: 600;
}

.cases-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('/images/patterns/sheep-pattern.svg');
  background-repeat: repeat;
  background-size: 200px;
  opacity: 0.05;
  pointer-events: none;
  z-index: 1;
}

/* 数据统计区域 - 优化布局，支持四个项目显示 */
.banner__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px 32px;
  margin-top: 30px;
  margin-bottom: 0;
  position: relative;
  z-index: 2;
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

.stat-item {
  text-align: center;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.stat-value {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: #1B5E20;
  margin-bottom: 0;
  line-height: 1.4;
  letter-spacing: 0;
  white-space: normal;
  word-break: keep-all;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  position: relative;
}

.stat-label {
  font-size: var(--font-size-small);
  color: var(--color-gray-500);
  margin-top: 0;
}

/* ========== 案例筛选器 ========== */
.cases-filters {
  background: var(--color-white);
  padding: 32px 0;
  border-bottom: 1px solid var(--color-gray-300);
  position: sticky;
  top: 80px;
  z-index: 10;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

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

.filter-group label {
  font-size: var(--font-size-small);
  color: var(--color-gray-600);
  min-width: 80px;
  font-weight: var(--font-weight-semibold);
}

.filter-btn {
  padding: 8px 20px;
  border: 1px solid var(--color-gray-300);
  border-radius: 20px;
  background: var(--color-white);
  color: var(--color-gray-600);
  font-size: var(--font-size-small);
  cursor: pointer;
  transition: all var(--transition-base);
  font-weight: var(--font-weight-medium);
}

.filter-btn:hover {
  border-color: var(--color-primary-dark);
  color: var(--color-primary-dark);
}

.filter-btn.active {
  background: var(--color-primary-dark);
  color: var(--color-white);
  border-color: var(--color-primary-dark);
}

/* ========== 案例网格 ========== */
.cases-grid-section {
  padding: 60px 0 80px;
  background: var(--color-gray-50);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.case-card {
  background: var(--color-white);
  border-radius: var(--radius-large);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

/* 第一排：3个卡片，只占据前3列 */
.case-card--first-row {
  order: 1;
}

/* 第二排：4个卡片 */
.case-card--second-row {
  order: 2;
}

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

.case-card__image {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: var(--color-gray-200);
}

.case-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.case-card:hover .case-card__image img {
  transform: scale(1.05);
}

.case-card__tags {
  position: absolute;
  bottom: 12px;
  left: 12px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.case-card__content {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.case-card__title {
  font-size: var(--font-size-h5);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
  margin-bottom: 12px;
  line-height: 1.4;
}

.case-card__client {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-gray-300);
}

.client-name {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-700);
}

.client-location {
  font-size: var(--font-size-tiny);
  color: var(--color-gray-500);
}

.case-card__desc {
  font-size: var(--font-size-small);
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
  margin-bottom: 16px;
  flex: 1;
}

.case-card__highlights {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.highlight {
  font-size: var(--font-size-tiny);
  color: var(--color-primary-dark);
  background: var(--color-primary-light);
  padding: 4px 10px;
  border-radius: 12px;
  font-weight: var(--font-weight-semibold);
}

.case-card__link {
  color: var(--color-primary-dark);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  font-size: var(--font-size-small);
  transition: color var(--transition-base);
}

.case-card__link:hover {
  color: var(--color-primary);
}

/* ========== 案例详情页 ========== */
.case-header {
  padding: 120px 0 60px;
  background: linear-gradient(135deg, #F0F9F4 0%, #FFFFFF 100%);
}

.breadcrumb {
  font-size: var(--font-size-small);
  color: var(--color-gray-600);
  margin-bottom: 32px;
}

.breadcrumb a {
  color: var(--color-gray-600);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

.case-header__content {
  display: grid;
  grid-template-columns: 60% 40%;
  gap: var(--spacing-6);
  align-items: center;
}

.case-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.case-title {
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight-bold);
  color: var(--color-gray-900);
  margin-bottom: 32px;
  line-height: 1.2;
}

.case-client {
  display: flex;
  gap: 24px;
  align-items: center;
  background: var(--color-white);
  padding: 24px;
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-sm);
}

.client-logo {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-medium);
  overflow: hidden;
  background: var(--color-gray-100);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.client-logo img {
  max-width: 100%;
  max-height: 100%;
}

.client-info h2 {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
  margin-bottom: 8px;
}

.client-info p {
  font-size: var(--font-size-small);
  color: var(--color-gray-600);
  margin-bottom: 4px;
}

.case-header__image {
  border-radius: var(--radius-large);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.case-header__image img {
  width: 100%;
  height: auto;
}

/* ========== 案例内容区块 ========== */
.case-section {
  padding: var(--spacing-8) 0;
}

.case-section--gray {
  background: var(--color-gray-50);
}

.case-section--green {
  background: var(--color-primary-light);
}

.section-label {
  display: inline-block;
  font-size: var(--font-size-tiny);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-dark);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  padding: 4px 12px;
  background: var(--color-primary-light);
  border-radius: 4px;
}

/* 实现效果标签 - 线框样式 */
.case-section--green .section-label {
  background: transparent;
  border: 1.5px solid var(--color-primary-dark);
  color: var(--color-primary-dark);
}

.case-section h2 {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-bold);
  color: var(--color-gray-900);
  margin-bottom: 32px;
}

.case-content {
  max-width: 800px;
}

.case-content p {
  font-size: var(--font-size-h6);
  color: var(--color-gray-700);
  line-height: var(--line-height-relaxed);
  margin-bottom: 20px;
}

.case-content strong {
  color: var(--color-primary-dark);
  font-weight: var(--font-weight-bold);
}

/* ========== 挑战网格 ========== */
.challenges-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.challenge-card {
  background: var(--color-gray-100);
  padding: 24px;
  border-radius: var(--radius-large);
  border-left: 4px solid var(--color-warning);
}

.challenge-icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.challenge-card h4 {
  font-size: var(--font-size-h5);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
  margin-bottom: 12px;
}

.challenge-card p {
  font-size: var(--font-size-small);
  color: var(--color-gray-600);
  line-height: var(--line-height-normal);
}

/* ========== 解决方案 ========== */
.solution-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
  margin-bottom: 40px;
}

.solution-item {
  background: var(--color-gray-100);
  padding: 24px;
  border-radius: var(--radius-large);
  border-left: 4px solid var(--color-primary-dark);
}

.solution-item h3 {
  font-size: var(--font-size-h5);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
  margin-bottom: 12px;
}

.solution-item p {
  font-size: var(--font-size-small);
  color: var(--color-gray-600);
  line-height: var(--line-height-normal);
}

.solution-image {
  text-align: center;
  margin-top: 40px;
}

.solution-image img {
  max-width: 100%;
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-lg);
}

.image-caption {
  margin-top: 16px;
  font-size: var(--font-size-small);
  color: var(--color-gray-600);
}

/* ========== 实现效果 ========== */
.results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.result-card {
  background: var(--color-white);
  padding: 32px 24px;
  border-radius: var(--radius-large);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.result-number {
  font-size: 48px;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-dark);
  margin-bottom: 8px;
}

.result-label {
  font-size: var(--font-size-h6);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
  margin-bottom: 12px;
}

.result-card p {
  font-size: var(--font-size-small);
  color: var(--color-gray-600);
  line-height: var(--line-height-normal);
  margin-bottom: 0;
}

.results-list {
  background: var(--color-white);
  padding: 32px;
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-sm);
}

.results-list ul {
  list-style: none;
}

.results-list li {
  font-size: var(--font-size-h6);
  color: var(--color-gray-700);
  line-height: var(--line-height-relaxed);
  margin-bottom: 16px;
  padding-left: 32px;
  position: relative;
}

.results-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: var(--font-weight-bold);
  font-size: 20px;
}

/* ========== 客户评价 ========== */
.testimonial {
  background: var(--color-white);
  padding: 48px;
  border-radius: var(--radius-xlarge);
  box-shadow: var(--shadow-md);
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.testimonial-icon {
  font-size: 80px;
  color: var(--color-primary-light);
  line-height: 1;
  margin-bottom: 24px;
}

.testimonial-text {
  font-size: var(--font-size-h5);
  color: var(--color-gray-700);
  line-height: var(--line-height-relaxed);
  margin-bottom: 32px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.author-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  overflow: hidden;
  background: #E8F5E9 url('/images/icons/user-avatar.svg') center center / 29px 29px no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
}

/* 当图片加载失败时显示淡绿色背景和图标 */
.author-avatar img[src=""],
.author-avatar img:not([src]),
.author-avatar img[style*="display: none"] {
  display: none;
}

.author-name {
  font-size: var(--font-size-h5);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
  margin-bottom: 4px;
}

.author-title {
  font-size: var(--font-size-small);
  color: var(--color-gray-600);
}

/* ========== 产品展示 ========== */
.product-showcase {
  background: var(--color-white);
  padding: 48px;
  border-radius: var(--radius-xlarge);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.product-showcase .product-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 24px;
  background: var(--color-primary-light);
  border-radius: var(--radius-large);
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-showcase .product-icon img {
  width: 60px;
  height: 60px;
}

.product-showcase p {
  font-size: var(--font-size-h5);
  color: var(--color-gray-700);
  margin-bottom: 24px;
}

/* ========== 相关案例 ========== */
.related-cases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

/* ========== CTA转化区优化 ========== */
/* CTA样式已移至 common.css */

/* ========== 响应式设计 ========== */
@media (max-width: 767px) {
  .cases-banner {
    padding: 60px 0 40px;
  }

  .banner__stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px 16px;
    margin-top: 24px;
  }

  .cases-banner .banner__subtitle {
    margin-top: 24px;
  }

  .stat-value {
    font-size: 16px;
    line-height: 1.5;
  }

  .cases-filters {
    top: 60px;
  }

  .filter-group {
    flex-direction: column;
    align-items: flex-start;
  }

  .filter-group label {
    margin-bottom: 8px;
  }

  .cases-grid,
  .challenges-grid,
  .solution-content,
  .results-grid,
  .related-cases {
    grid-template-columns: 1fr;
  }

  .case-header {
    padding: 80px 0 40px;
  }

  .case-header__content {
    grid-template-columns: 1fr;
  }

  .case-title {
    font-size: var(--font-size-h2);
  }

  .testimonial {
    padding: 32px 24px;
  }

  /* CTA响应式样式已移至 common.css */
}

@media (min-width: 768px) and (max-width: 1199px) {
  .cases-banner .banner__title {
    font-size: 32px;
  }

  .banner__stats {
    gap: 20px 24px;
    max-width: 900px;
  }

  .stat-value {
    font-size: 18px;
    line-height: 1.4;
  }

  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .results-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .related-cases {
    grid-template-columns: repeat(2, 1fr);
  }

  /* CTA响应式样式已移至 common.css */
}