/* ============================================
   产品详情页样式
   ============================================ */

/* 产品详情页 Hero */
.product-hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
  padding: 160px 0 80px;
  color: white;
  text-align: center;
}

.product-hero .product-tag {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 0.9rem;
  margin-bottom: 20px;
  backdrop-filter: blur(10px);
}

.product-hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.product-hero .product-subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

/* 产品介绍区块 */
.product-intro {
  padding: 80px 0;
}

.product-intro-content {
  max-width: 900px;
  margin: 0 auto;
}

.product-intro-title {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 24px;
  text-align: center;
}

.product-intro-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent-color);
  margin: 16px auto 0;
  border-radius: 2px;
}

.product-intro-text {
  font-size: 1rem;
  line-height: 2;
  color: var(--text-light);
  text-align: justify;
}

.product-intro-text strong {
  color: var(--text-dark);
}

/* 内联流程步骤 */
.flow-inline {
  display: flex;
  justify-content: center;
  align-items: stretch;
  margin-top: 40px;
  padding: 0 10px;
}

.flow-inline .flow-step {
  flex: 1;
  max-width: 200px;
}

/* 应用场景区块 */
.scenarios-section {
  padding: 80px 0;
  background: white;
}

.scenarios-section .section-title {
  text-align: center;
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 48px;
}

.scenario-block {
  margin-bottom: 48px;
}

.scenario-block:last-child {
  margin-bottom: 0;
}

.scenario-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent-color);
}

.scenario-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--accent-color);
  color: white;
  border-radius: 50%;
  font-size: 0.9rem;
  font-weight: 700;
}

/* 场景卡片网格 */
.scenario-cards {
  display: grid;
  gap: 20px;
}

.scenario-cards.three-cols {
  grid-template-columns: repeat(3, 1fr);
}

.scenario-cards.two-cols {
  grid-template-columns: repeat(2, 1fr);
}

.scenario-cards.sop-layout {
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* 单个卡片 */
.scenario-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  width: 100%;
}

.scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.card-header {
  background: linear-gradient(135deg, #4a5568 0%, #2d3748 100%);
  color: white;
  padding: 16px 20px;
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  letter-spacing: 2px;
  width: 100%;
  box-sizing: border-box;
}

.card-list {
  list-style: none;
  padding: 20px 24px;
  margin: 0;
}

.card-list li {
  padding: 8px 0;
  color: var(--primary-color);
  font-size: 0.9rem;
  position: relative;
  padding-left: 16px;
}

.card-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: bold;
}

/* 两列列表 */
.card-list.two-column {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 16px;
}

/* SOP卡片特殊样式 */
.sop-card {
  display: flex;
  border: 2px solid #e2e8f0;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.sop-card .card-header-side {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  background: linear-gradient(180deg, #2196F3 0%, #1565C0 100%);
  color: white;
  padding: 24px 14px;
  font-weight: 600;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 6px;
  min-width: 54px;
  border-radius: 18px 0 0 18px;
}

.sop-card .card-header-side.right {
  order: 2;
  border-radius: 0 18px 18px 0;
}

.sop-card .card-list {
  flex: 1;
  padding: 20px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* 特性区块 */
.features-section {
  padding: 60px 0 80px;
  background: linear-gradient(180deg, #f8fafc 0%, #eef4f8 100%);
}

/* 流程步骤 */
.flow-section {
  padding: 80px 0;
  background: linear-gradient(180deg, #f8fafc 0%, #eef4f8 100%);
}

.flow-section .container {
  max-width: 1100px;
}

.flow-title {
  text-align: center;
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 48px;
}

.flow-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
  margin: 16px auto 0;
  border-radius: 2px;
}

.flow-container {
  display: flex;
  justify-content: center;
  align-items: stretch;
  position: relative;
  padding: 0 10px;
}

.flow-step {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #2196F3 0%, #1565C0 50%, #0D47A1 100%);
  color: white;
  padding: 22px 32px 22px 42px;
  font-weight: 600;
  font-size: 1rem;
  position: relative;
  text-align: center;
  min-height: 56px;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 50%, calc(100% - 24px) 100%, 0 100%, 24px 50%);
  margin-left: -24px;
  box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
}

.flow-step:first-child {
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 50%, calc(100% - 24px) 100%, 0 100%);
  margin-left: 0;
  border-radius: 8px 0 0 8px;
  padding-left: 28px;
}

.flow-step:last-child {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%, 24px 50%);
  border-radius: 0 8px 8px 0;
  padding-right: 28px;
}

.flow-step:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(33, 150, 243, 0.4);
  z-index: 10;
}

.flow-step:nth-child(1) {
  background: linear-gradient(135deg, #2196F3 0%, #1976D2 100%);
  z-index: 5;
}

.flow-step:nth-child(2) {
  background: linear-gradient(135deg, #1E88E5 0%, #1565C0 100%);
  z-index: 4;
}

.flow-step:nth-child(3) {
  background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
  z-index: 3;
}

.flow-step:nth-child(4) {
  background: linear-gradient(135deg, #1565C0 0%, #0D47A1 100%);
  z-index: 2;
}

.flow-step:nth-child(5) {
  background: linear-gradient(135deg, #0D47A1 0%, #0A3A7A 100%);
  z-index: 1;
}

/* 高亮特性 */
.highlight-features {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  background: white;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

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

.highlight-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
  border-radius: 12px;
}

.highlight-icon svg {
  width: 24px;
  height: 24px;
  stroke: white;
}

.highlight-text {
  font-weight: 500;
  color: var(--text-dark);
}

/* 客户案例区块 */
.cases-section {
  padding: 80px 0;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.cases-section .section-title {
  text-align: center;
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 48px;
}

.case-block {
  background: white;
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 40px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.case-block:last-child {
  margin-bottom: 0;
}

.case-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--accent-color);
}

.case-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--accent-color);
  color: white;
  border-radius: 50%;
  font-size: 1rem;
  font-weight: 700;
}

.case-intro {
  margin-bottom: 24px;
  line-height: 1.8;
  color: var(--text-light);
}

/* 案例1布局 */
.case-layout-1 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.case-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.step-row {
  display: flex;
  gap: 16px;
}

.step-item {
  flex: 1;
  background: #f8fafc;
  border-radius: 12px;
  padding: 16px;
}

.step-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 0.8rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 12px;
}

.step-img-placeholder {
  width: 100%;
  height: 80px;
  background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
  border-radius: 8px;
}

.step-img {
  width: 100%;
  height: 80px;
  object-fit: cover;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.step-img:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Lightbox 大图预览 - 统一样式 */
.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.lightbox-overlay.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  animation: lightbox-zoom 0.3s ease;
}

@keyframes lightbox-zoom {
  from {
    transform: scale(0.8);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(90deg);
}

.lightbox-caption {
  margin-top: 16px;
  color: white;
  font-size: 16px;
  font-weight: 500;
  text-align: center;
  opacity: 0.9;
}

/* 可点击图片样式 */
.lightbox-img {
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.lightbox-img:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* Video Modal 全屏视频播放 */
.video-modal {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.95);
  justify-content: center;
  align-items: center;
}

.video-modal.active {
  display: flex;
}

.modal-video {
  max-width: 90%;
  max-height: 85%;
  border-radius: 8px;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
  animation: lightbox-zoom 0.3s ease;
}

.video-modal-close {
  position: absolute;
  top: 20px;
  right: 30px;
  color: white;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  transition: color 0.3s ease;
  z-index: 10000;
}

.video-modal-close:hover {
  color: #f87171;
}

/* 视频容器可点击提示 */
.case-video-container {
  cursor: pointer;
}

.case-video-container .video-thumbnail {
  width: 100%;
  height: 100%;
  min-height: 300px;
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.case-video-container .video-play-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.case-video-container .play-btn-circle {
  width: 72px;
  height: 72px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.case-video-container .play-btn-circle svg {
  width: 32px;
  height: 32px;
  color: #2196F3;
  margin-left: 4px;
}

.case-video-container:hover .play-btn-circle {
  transform: scale(1.1);
  background: white;
}

.case-video-container .play-hint {
  color: white;
  font-size: 14px;
  font-weight: 500;
  opacity: 0.9;
}

.video-fullscreen-hint {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.6);
  color: white;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.case-video-container:hover .video-fullscreen-hint {
  opacity: 1;
}

.case-video-container:hover .video-play-btn {
  transform: translate(-50%, -50%) scale(1.1);
}

.case-preview {
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-img-placeholder {
  width: 100%;
  height: 100%;
  min-height: 300px;
  background: linear-gradient(135deg, #1e3a5f 0%, #0d2137 100%);
  border-radius: 12px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 20px;
  color: #4ade80;
  font-weight: 600;
  font-size: 1.1rem;
}

.case-video-container {
  width: 100%;
  height: 100%;
  min-height: 300px;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: #0d2137;
}

.case-video {
  width: 100%;
  height: 100%;
  min-height: 300px;
  object-fit: cover;
  display: block;
}

.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.video-play-btn:hover {
  background: white;
  transform: translate(-50%, -50%) scale(1.1);
}

.video-play-btn svg {
  width: 32px;
  height: 32px;
  color: var(--primary-color);
  margin-left: 4px;
}

.video-play-btn.hidden {
  opacity: 0;
  pointer-events: none;
}

.video-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: #4ade80;
  font-weight: 600;
  font-size: 1.1rem;
  text-align: center;
}

.case-footer {
  display: flex;
  align-items: center;
  gap: 24px;
  background: linear-gradient(135deg, var(--primary-color) 0%, #1e3a5f 100%);
  border-radius: 12px;
  padding: 24px;
  color: white;
}

.case-slogan {
  flex: 1;
  font-size: 1rem;
  line-height: 1.8;
}

.case-tags {
  display: flex;
  gap: 16px;
}

.case-tag {
  padding: 12px 32px;
  border: 2px solid white;
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.case-tag:hover {
  background: white;
  color: var(--primary-color);
}

/* 案例2布局 */
.case-layout-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.case-images-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.case-img-item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.case-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.case-img:hover {
  transform: scale(1.03);
}

.img-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  padding: 20px 16px 10px;
  text-align: center;
  font-size: 0.9rem;
  color: white;
  font-weight: 500;
}

.case-video-side {
  display: flex;
  flex-direction: column;
}

.case-video-side .case-video-container {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  height: 100%;
  min-height: 400px;
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.case-video-side .case-video-container .video-thumbnail {
  min-height: 400px;
}

.case-video-side .case-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.case-features li {
  padding: 12px 0;
  padding-left: 24px;
  position: relative;
  color: var(--text-light);
  line-height: 1.8;
  border-bottom: 1px solid #f1f5f9;
}

.case-features li:last-child {
  border-bottom: none;
}

.case-features li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: bold;
  font-size: 1.2rem;
}

/* 案例3布局 */
.case-layout-3 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.case-panel {
  background: #f8fafc;
  border-radius: 12px;
  padding: 24px;
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 20px;
}

.panel-icon {
  width: 8px;
  height: 24px;
  background: #fbbf24;
  border-radius: 4px;
}

.solutions .panel-icon {
  background: var(--accent-color);
}

.panel-item {
  margin-bottom: 20px;
}

.panel-item:last-child {
  margin-bottom: 0;
}

.panel-item h5 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.panel-item p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.7;
}

.case-gallery {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.case-gallery.four-cols {
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.gallery-item {
  height: 120px;
  background: linear-gradient(135deg, #374151 0%, #1f2937 100%);
  border-radius: 8px;
  overflow: hidden;
}

.case-gallery.four-cols .gallery-item {
  height: auto;
  aspect-ratio: 4 / 3;
}

.gallery-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.gallery-img:hover {
  transform: scale(1.05);
}

/* 响应式 - 平板 */
@media (max-width: 1100px) {
  .flow-step {
    padding: 20px 28px 20px 38px;
    font-size: 0.9rem;
  }
  
  .flow-step:first-child {
    padding-left: 24px;
  }
  
  .flow-step:last-child {
    padding-right: 24px;
  }

  .flow-inline .flow-step {
    max-width: 180px;
  }

  .scenario-cards.three-cols {
    grid-template-columns: repeat(2, 1fr);
  }

  .scenario-cards.three-cols .scenario-card:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    max-width: 50%;
    justify-self: center;
  }
}

@media (max-width: 992px) {
  .product-hero h1 {
    font-size: 2rem;
  }

  .flow-section {
    padding: 60px 0;
  }

  .flow-title {
    font-size: 1.5rem;
    margin-bottom: 36px;
  }

  .flow-container,
  .flow-inline {
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 0;
  }

  .flow-step,
  .flow-inline .flow-step {
    width: 100%;
    max-width: 380px;
    margin: 0;
    padding: 18px 24px 18px 24px;
    min-height: 52px;
    font-size: 0.95rem;
    clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 50%, calc(100% - 16px) 100%, 0 100%, 16px 50%);
    margin-top: -10px;
  }

  .flow-step:first-child,
  .flow-inline .flow-step:first-child {
    clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 50%, calc(100% - 16px) 100%, 0 100%);
    margin-top: 0;
    border-radius: 8px 8px 0 0;
  }

  .flow-step:last-child,
  .flow-inline .flow-step:last-child {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%, 16px 50%);
    border-radius: 0 0 8px 8px;
  }

  .flow-step:hover {
    transform: translateY(0) scale(1.02);
  }

  .features-section {
    padding: 50px 0 60px;
  }
}

@media (max-width: 768px) {
  .flow-container,
  .flow-inline {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 0 16px;
  }

  .flow-step,
  .flow-inline .flow-step {
    max-width: 100%;
    clip-path: none;
    margin: 0;
    margin-left: 0;
    margin-top: 0;
    border-radius: 12px;
    padding: 20px 16px;
    min-height: 60px;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.25);
  }

  .flow-step:first-child,
  .flow-inline .flow-step:first-child {
    clip-path: none;
    border-radius: 12px;
    margin-left: 0;
  }

  .flow-step:last-child,
  .flow-inline .flow-step:last-child {
    clip-path: none;
    border-radius: 12px;
    grid-column: 1 / -1;
    max-width: 50%;
    justify-self: center;
  }

  .flow-step:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(33, 150, 243, 0.35);
  }

  .highlight-features {
    gap: 16px;
    margin-top: 0;
  }

  .highlight-item {
    padding: 14px 20px;
  }

  /* 场景卡片响应式 */
  .scenarios-section {
    padding: 60px 0;
  }

  .scenarios-section .section-title {
    font-size: 1.35rem;
    margin-bottom: 36px;
  }

  .scenario-cards.three-cols,
  .scenario-cards.two-cols,
  .scenario-cards.sop-layout {
    grid-template-columns: 1fr;
  }

  .scenario-cards.three-cols .scenario-card:last-child:nth-child(odd) {
    max-width: 100%;
  }

  .card-list.two-column {
    grid-template-columns: 1fr;
  }

  .sop-card {
    flex-direction: column;
  }

  .sop-card .card-header-side {
    writing-mode: horizontal-tb;
    text-orientation: mixed;
    padding: 14px 20px;
    min-width: auto;
    letter-spacing: 2px;
  }

  .sop-card .card-header-side.right {
    order: 0;
  }

  /* 客户案例响应式 */
  .cases-section {
    padding: 60px 0;
  }

  .case-block {
    padding: 24px 20px;
  }

  .case-layout-1,
  .case-layout-2,
  .case-layout-3 {
    grid-template-columns: 1fr;
  }

  .step-row {
    flex-direction: column;
  }

  .case-footer {
    flex-direction: column;
    text-align: center;
  }

  .case-tags {
    flex-wrap: wrap;
    justify-content: center;
  }

  .case-layout-2 {
    grid-template-columns: 1fr;
  }

  .case-images-stack {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .case-img {
    height: 150px;
  }

  .case-video-side .case-video-container {
    min-height: 300px;
  }

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

  .case-gallery.four-cols {
    grid-template-columns: repeat(2, 1fr);
  }

  .case-gallery .gallery-item:last-child {
    grid-column: 1 / -1;
  }

  .case-gallery.four-cols .gallery-item:last-child {
    grid-column: auto;
  }
}

@media (max-width: 576px) {
  .product-hero {
    padding: 140px 0 60px;
  }

  .product-hero h1 {
    font-size: 1.75rem;
  }

  .product-intro {
    padding: 60px 0;
  }

  .product-intro-title {
    font-size: 1.5rem;
  }

  .flow-section {
    padding: 50px 0;
  }

  .flow-title {
    font-size: 1.35rem;
    margin-bottom: 28px;
  }

  .flow-container,
  .flow-inline {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 0;
    max-width: 280px;
    margin: 0 auto;
    counter-reset: step-counter;
  }

  .flow-step,
  .flow-inline .flow-step {
    padding: 16px 20px;
    font-size: 0.9rem;
    min-height: 52px;
    position: relative;
    padding-left: 50px !important;
    justify-content: flex-start;
  }

  .flow-step:first-child,
  .flow-inline .flow-step:first-child {
    padding-left: 50px !important;
  }

  .flow-step::before,
  .flow-inline .flow-step::before {
    content: counter(step-counter);
    counter-increment: step-counter;
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
  }

  .flow-step:last-child,
  .flow-inline .flow-step:last-child {
    max-width: 100%;
    grid-column: auto;
  }

  .highlight-features {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    margin-top: 32px;
  }

  .highlight-item {
    justify-content: flex-start;
    padding: 14px 18px;
  }

  .highlight-icon {
    width: 42px;
    height: 42px;
  }

  .highlight-icon svg {
    width: 20px;
    height: 20px;
  }

  .highlight-text {
    font-size: 0.9rem;
  }

  /* 案例2移动端 */
  .case-images-stack {
    grid-template-columns: 1fr;
  }

  .case-img {
    height: 180px;
  }

  .case-video-side .case-video-container {
    min-height: 250px;
  }
}