/* 
 * 百川.谱眼 - 解决方案详情页样式
 * 版本: 1.0.0
 */

/* ========================================
   Hero区域 - 详情页专用
   ======================================== */
.hero-detail {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #0a1628 0%, #1a365d 50%, #0f766e 100%);
  overflow: hidden;
}

.hero-detail::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(16, 185, 129, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.2) 0%, transparent 50%);
  pointer-events: none;
}

.hero-detail .container {
  position: relative;
  z-index: 1;
}

.hero-detail .hero-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  color: #fff;
}

.hero-tag {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(16, 185, 129, 0.2);
  border: 1px solid rgba(16, 185, 129, 0.4);
  border-radius: 50px;
  font-size: 0.9rem;
  color: #34d399;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease;
}

.hero-detail .hero-title {
  font-size: 3.2rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-detail .hero-subtitle {
  font-size: 1.15rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 40px;
  animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
  animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease 0.4s both;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 3rem;
  font-weight: 700;
  color: #34d399;
  line-height: 1;
}

.stat-label {
  display: block;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 8px;
}

/* ========================================
   通用区块样式
   ======================================== */
.section {
  padding: 100px 0;
}

.section:nth-child(even) {
  background: #f9fafb;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(0, 82, 217, 0.1);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #0052D9;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: #6b7280;
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-header.light .section-title {
  color: #fff;
}

.section-header.light .section-desc {
  color: rgba(255, 255, 255, 0.8);
}

/* ========================================
   痛点表格
   ======================================== */
.pain-table-wrapper {
  overflow-x: auto;
}

.pain-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.pain-table th,
.pain-table td {
  padding: 20px 24px;
  text-align: left;
  border-bottom: 1px solid #e5e7eb;
}

.pain-table th {
  background: #1f2937;
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
}

.pain-table th:first-child {
  width: 220px;
}

.pain-table tbody tr:last-child td {
  border-bottom: none;
}

.pain-table tbody tr:hover {
  background: #f9fafb;
}

.pain-table .pain-highlight {
  background: rgba(239, 68, 68, 0.05);
}

.pain-table .pain-highlight:hover {
  background: rgba(239, 68, 68, 0.1);
}

.pain-name {
  font-weight: 600;
  color: #1f2937;
  display: flex;
  align-items: center;
  gap: 10px;
}

.pain-icon {
  font-size: 1.2rem;
}

/* ========================================
   技术方案流程图
   ======================================== */
.flow-chart {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 40px;
  background: linear-gradient(135deg, #1e3a5f 0%, #0a1628 100%);
  border-radius: 16px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  min-width: 120px;
}

.flow-step.highlight {
  background: rgba(16, 185, 129, 0.3);
  border: 2px solid #10b981;
}

.flow-step.success {
  background: rgba(16, 185, 129, 0.5);
}

.flow-icon {
  font-size: 2rem;
}

.flow-text {
  font-size: 0.85rem;
  color: #fff;
  text-align: center;
}

.flow-arrow {
  color: #34d399;
  font-size: 1.5rem;
  font-weight: bold;
}

/* ========================================
   技术组件卡片
   ======================================== */
.tech-components {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.tech-card {
  background: #fff;
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.tech-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, #0052D9, #10b981);
}

.tech-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.tech-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.tech-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: #e5e7eb;
  line-height: 1;
}

.tech-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #1f2937;
}

.tech-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(0, 82, 217, 0.1);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #0052D9;
  margin-bottom: 16px;
}

.tech-list {
  list-style: none;
}

.tech-list li {
  padding: 12px 0;
  border-bottom: 1px solid #f3f4f6;
  color: #4b5563;
  line-height: 1.6;
}

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

.tech-list li strong {
  color: #1f2937;
}

/* ========================================
   对比表格
   ======================================== */
.compare-table-wrapper,
.benefits-table-wrapper {
  overflow-x: auto;
}

.compare-table,
.benefits-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.compare-table th,
.compare-table td,
.benefits-table th,
.benefits-table td {
  padding: 16px 20px;
  text-align: center;
  border-bottom: 1px solid #e5e7eb;
}

.compare-table th:first-child,
.benefits-table th:first-child {
  text-align: left;
  width: 180px;
}

.compare-table td:first-child,
.benefits-table td:first-child {
  text-align: left;
  font-weight: 600;
  color: #1f2937;
}

.compare-table th,
.benefits-table th {
  background: #1f2937;
  color: #fff;
  font-weight: 600;
}

.compare-table .highlight-col,
.benefits-table th:last-child {
  background: #10b981;
}

.compare-table .highlight-row {
  background: rgba(16, 185, 129, 0.1);
}

.compare-table .old,
.benefits-table .old {
  color: #9ca3af;
  text-decoration: line-through;
}

.compare-table .new,
.benefits-table .new {
  color: #10b981;
  font-weight: 600;
}

.benefits-table .up {
  color: #10b981;
  font-weight: 700;
}

.benefits-table .down {
  color: #3b82f6;
  font-weight: 700;
}

/* ========================================
   效益量化区块
   ======================================== */
.benefits {
  background: linear-gradient(135deg, #1e3a5f 0%, #0a1628 100%);
  color: #fff;
}

.benefits-calc {
  display: grid;
  gap: 40px;
}

.benefits-table th,
.benefits-table td {
  background: rgba(255, 255, 255, 0.95);
  color: #1f2937;
}

.benefits-table th {
  background: #fff !important;
  color: #1f2937 !important;
}

.benefits-table th:last-child {
  background: #10b981 !important;
  color: #fff !important;
}

.roi-highlight {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 40px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.roi-highlight h3 {
  font-size: 1.5rem;
  margin-bottom: 30px;
  text-align: center;
}

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

.roi-item {
  text-align: center;
  padding: 24px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
}

.roi-item.big {
  grid-column: span 2;
  background: rgba(16, 185, 129, 0.3);
  border: 2px solid #10b981;
}

.roi-label {
  display: block;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 8px;
}

.roi-value {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
}

.roi-value.highlight {
  color: #34d399;
}

.roi-formula {
  display: block;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 8px;
}

.roi-note {
  margin-top: 30px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  text-align: center;
  font-style: italic;
}

/* ========================================
   案例卡片
   ======================================== */
.case-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.case-card {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
}

.case-card:hover {
  transform: translateY(-5px);
}

.case-header {
  background: linear-gradient(135deg, #0052D9, #3B82F6);
  padding: 30px;
  color: #fff;
}

.case-badge {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  font-size: 0.8rem;
  margin-bottom: 12px;
}

.case-header h3 {
  font-size: 1.3rem;
  font-weight: 600;
}

.case-body {
  padding: 30px;
}

.case-section {
  margin-bottom: 20px;
}

.case-section h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 8px;
}

.case-section p {
  color: #4b5563;
  line-height: 1.6;
}

.case-section ul {
  list-style: none;
}

.case-section li {
  padding: 6px 0;
  color: #4b5563;
  padding-left: 20px;
  position: relative;
}

.case-section li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #10b981;
  font-weight: bold;
}

.case-result {
  display: flex;
  gap: 20px;
  padding: 20px;
  background: #f0fdf4;
  border-radius: 10px;
  margin-top: 20px;
}

.result-item {
  flex: 1;
}

.result-label {
  display: block;
  font-size: 0.85rem;
  color: #6b7280;
  margin-bottom: 4px;
}

.result-value {
  font-size: 1.2rem;
  font-weight: 600;
  color: #1f2937;
}

.result-value.highlight {
  color: #10b981;
}

.result-desc {
  font-size: 0.85rem;
  color: #6b7280;
}

.case-quote {
  background: #eff6ff;
  padding: 20px 30px;
  border-left: 4px solid #3b82f6;
}

.case-quote p {
  font-style: italic;
  color: #4b5563;
  line-height: 1.6;
}

/* ========================================
   服务流程时间轴
   ======================================== */
.steps-timeline {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  margin-bottom: 60px;
}

.step-item {
  flex: 1;
  max-width: 200px;
  text-align: center;
  position: relative;
}

.step-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #0052D9, #3B82F6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  margin: 0 auto 16px;
  box-shadow: 0 4px 15px rgba(0, 82, 217, 0.3);
}

.step-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 0.9rem;
  color: #6b7280;
  line-height: 1.5;
}

.step-duration {
  display: inline-block;
  margin-top: 12px;
  padding: 4px 12px;
  background: rgba(16, 185, 129, 0.1);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #10b981;
}

.step-connector {
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, #0052D9, #10b981);
  margin-top: 30px;
  flex-shrink: 0;
}

.ongoing-service {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 30px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(0, 82, 217, 0.1));
  border-radius: 12px;
  border: 1px dashed #10b981;
}

.ongoing-icon {
  font-size: 2.5rem;
}

.ongoing-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 4px;
}

.ongoing-content p {
  color: #6b7280;
}

/* ========================================
   CTA行动转化区
   ======================================== */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #f9fafb 0%, #eff6ff 100%);
}

.cta-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.cta-content {
  padding: 50px;
  background: linear-gradient(135deg, #1e3a5f 0%, #0a1628 100%);
  color: #fff;
}

.cta-content h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.3;
}

.cta-content > p {
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.85);
}

.cta-features {
  list-style: none;
  margin-bottom: 24px;
}

.cta-features li {
  padding: 10px 0;
  font-size: 1.05rem;
  color: #34d399;
}

.cta-highlight {
  font-size: 1.1rem;
  font-weight: 600;
  color: #34d399;
  padding: 16px;
  background: rgba(52, 211, 153, 0.15);
  border-radius: 8px;
  text-align: center;
}

.cta-form {
  padding: 50px;
}

.cta-form h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 30px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: #4b5563;
  margin-bottom: 8px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: #0052D9;
  box-shadow: 0 0 0 3px rgba(0, 82, 217, 0.1);
}

.form-note {
  margin-top: 20px;
  text-align: center;
  font-size: 0.95rem;
  color: #6b7280;
}

.form-note a {
  color: #0052D9;
  font-weight: 600;
}

/* ========================================
   FAQ手风琴
   ======================================== */
.faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.faq-question {
  width: 100%;
  padding: 24px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: none;
  border: none;
  font-size: 1.05rem;
  font-weight: 600;
  color: #1f2937;
  cursor: pointer;
  text-align: left;
  transition: background 0.3s ease;
}

.faq-question:hover {
  background: #f9fafb;
}

.faq-icon {
  font-size: 1.5rem;
  color: #0052D9;
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  padding: 0 30px 24px;
}

.faq-answer p {
  color: #4b5563;
  line-height: 1.7;
}

.faq-more {
  text-align: center;
  margin-top: 40px;
  font-size: 1rem;
  color: #6b7280;
}

.faq-more a {
  color: #0052D9;
  font-weight: 600;
}

/* ========================================
   相关解决方案
   ======================================== */
.related-solutions {
  background: #fff;
  padding: 80px 0;
}

.related-solutions h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #1f2937;
  text-align: center;
  margin-bottom: 40px;
}

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

.related-card {
  padding: 30px;
  background: #f9fafb;
  border-radius: 12px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.related-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.related-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.related-card h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 8px;
}

.related-card p {
  font-size: 0.9rem;
  color: #6b7280;
}

/* ========================================
   页脚
   ======================================== */
.footer {
  background: #1f2937;
  color: #fff;
  padding: 60px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 60px;
  margin-bottom: 40px;
}

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

.footer-logo .logo-icon {
  font-size: 2rem;
}

.footer-logo .logo-text {
  font-size: 1.5rem;
  font-weight: 700;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: #fff;
}

.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  padding: 6px 0;
  transition: color 0.3s ease;
}

.footer-col a:hover {
  color: #34d399;
}

.footer-col p {
  color: rgba(255, 255, 255, 0.7);
  padding: 4px 0;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   返回顶部按钮
   ======================================== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: #0052D9;
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 82, 217, 0.3);
  z-index: 1000;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px);
  background: #003399;
}

/* ========================================
   按钮样式
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.35);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.1rem;
}

.btn-block {
  width: 100%;
}

/* ========================================
   动画
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1200px) {
  .tech-components {
    grid-template-columns: 1fr;
  }
  
  .case-cards {
    grid-template-columns: 1fr;
  }
  
  .cta-box {
    grid-template-columns: 1fr;
  }
  
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .roi-calc {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 992px) {
  .hero-detail .hero-title {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .steps-timeline {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }
  
  .step-item {
    max-width: 100%;
    padding: 20px 0;
  }
  
  .step-connector {
    width: 2px;
    height: 40px;
    margin: 0;
    background: linear-gradient(180deg, #0052D9, #10b981);
  }
}

@media (max-width: 768px) {
  .hero-detail {
    min-height: auto;
    padding: 100px 0 60px;
  }
  
  .hero-detail .hero-title {
    font-size: 2rem;
  }
  
  .hero-detail .hero-subtitle {
    font-size: 1rem;
  }
  
  .hero-stats {
    gap: 30px;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .hero-actions {
    flex-direction: column;
    gap: 16px;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .flow-chart {
    flex-direction: column;
    gap: 16px;
  }
  
  .flow-arrow {
    transform: rotate(90deg);
  }
  
  .related-grid {
    grid-template-columns: 1fr;
  }
  
  .roi-calc {
    grid-template-columns: 1fr;
  }
  
  .roi-item.big {
    grid-column: span 1;
  }
  
  .compare-table th,
  .compare-table td,
  .benefits-table th,
  .benefits-table td {
    padding: 12px;
    font-size: 0.9rem;
  }
  
  .cta-content,
  .cta-form {
    padding: 30px;
  }
}

/* ========================================
   产品详情页专用样式
   ======================================== */

/* 产品概述 */
.product-overview {
  background: #fff;
}

.overview-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 60px;
  align-items: start;
}

.overview-text p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #4b5563;
  margin-bottom: 20px;
}

.overview-text p:last-child {
  margin-bottom: 0;
}

.overview-highlight {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(0, 82, 217, 0.05));
  padding: 24px;
  border-radius: 12px;
  border-left: 4px solid #10b981;
  margin-top: 30px;
}

.overview-highlight p {
  color: #1f2937;
  font-size: 1.1rem;
  margin-bottom: 0;
}

.overview-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 20px;
  background: #f9fafb;
  border-radius: 12px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.feature-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: #1f2937;
}

/* 核心构成 */
.core-components {
  background: #f9fafb;
}

.structure-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 40px;
  background: linear-gradient(135deg, #1e3a5f 0%, #0a1628 100%);
  border-radius: 16px;
  margin-bottom: 60px;
}

.structure-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 30px 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  min-width: 180px;
}

.structure-item:hover {
  background: rgba(255, 255, 255, 0.2);
}

.structure-icon {
  font-size: 3rem;
}

.structure-item h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
  text-align: center;
}

.structure-item p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
}

.structure-arrow {
  font-size: 2rem;
  color: #34d399;
  font-weight: bold;
}

/* 组件详情 */
.component-detail {
  background: #fff;
  border-radius: 16px;
  padding: 40px;
  margin-bottom: 40px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.component-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.component-num {
  font-size: 2rem;
  font-weight: 700;
  color: #e5e7eb;
  line-height: 1;
}

.component-intro {
  font-size: 1.05rem;
  color: #4b5563;
  margin-bottom: 30px;
  line-height: 1.7;
}

/* 相机对比表格 */
.camera-table-wrapper {
  overflow-x: auto;
  margin-bottom: 30px;
}

.camera-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
}

.camera-table th,
.camera-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid #e5e7eb;
}

.camera-table th {
  background: #1f2937;
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
}

.camera-table td {
  color: #4b5563;
  font-size: 0.95rem;
}

.camera-table .highlight-row {
  background: rgba(16, 185, 129, 0.1);
}

.camera-table .highlight-row td {
  color: #1f2937;
  font-weight: 500;
}

.camera-table tbody tr:hover {
  background: #f9fafb;
}

.selection-tip,
.tech-principle {
  padding: 24px;
  border-radius: 12px;
  margin-top: 20px;
}

.selection-tip {
  background: rgba(59, 130, 246, 0.08);
  border-left: 4px solid #3b82f6;
}

.tech-principle {
  background: rgba(16, 185, 129, 0.08);
  border-left: 4px solid #10b981;
}

.selection-tip h4,
.tech-principle h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 12px;
}

.selection-tip p,
.tech-principle p {
  font-size: 1rem;
  color: #4b5563;
  line-height: 1.7;
  margin: 0;
}

/* AI功能 */
.ai-features {
  display: grid;
  gap: 24px;
}

.ai-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px;
  background: #f9fafb;
  border-radius: 12px;
  transition: transform 0.3s ease;
}

.ai-item:hover {
  transform: translateX(5px);
}

.ai-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
}

.ai-content h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 8px;
}

.ai-content p {
  font-size: 1rem;
  color: #4b5563;
  line-height: 1.6;
  margin: 0;
}

/* 接口特性 */
.interface-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.interface-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 30px;
  background: #f9fafb;
  border-radius: 12px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.interface-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.interface-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
}

.interface-content h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 8px;
}

.interface-content p {
  font-size: 1rem;
  color: #4b5563;
  line-height: 1.6;
  margin: 0;
}

/* 技术优势 */
.tech-advantages {
  background: linear-gradient(135deg, #1e3a5f 0%, #0a1628 100%);
  color: #fff;
}

.tech-advantages .section-header.light .section-tag {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
}

.tech-advantages .section-title {
  color: #fff;
}

.tech-advantages .section-desc {
  color: rgba(255, 255, 255, 0.8);
}

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

.advantage-card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: transform 0.3s ease, background 0.3s ease;
}

.advantage-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.15);
}

.advantage-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.advantage-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}

.advantage-card p {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
  margin: 0;
}

/* 规格参数 */
.specs-section {
  background: #fff;
}

.specs-card {
  background: #fff;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  margin-bottom: 40px;
}

.specs-card.main-spec {
  border: 2px solid #10b981;
}

.specs-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.specs-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid #e5e7eb;
}

.optional-spec .specs-title {
  color: #4b5563;
}

.specs-table-wrapper {
  overflow-x: auto;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
}

.specs-table th,
.specs-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid #f3f4f6;
}

.specs-table th {
  width: 200px;
  font-weight: 600;
  color: #6b7280;
  font-size: 0.9rem;
  background: #f9fafb;
}

.specs-table td {
  color: #1f2937;
  font-size: 0.95rem;
}

.spec-note {
  margin-top: 16px;
  padding: 16px;
  background: #fffbeb;
  border-radius: 8px;
  font-size: 0.9rem;
  color: #92400e;
}

/* 相机对比总览 */
.camera-compare {
  background: #f9fafb;
}

.compare-table-wrapper {
  overflow-x: auto;
  margin-bottom: 40px;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.compare-table th,
.compare-table td {
  padding: 16px 20px;
  text-align: center;
  border-bottom: 1px solid #e5e7eb;
}

.compare-table th {
  background: #1f2937;
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
}

.compare-table td {
  color: #4b5563;
  font-size: 0.95rem;
}

.compare-table td:first-child {
  text-align: left;
  font-weight: 600;
  color: #1f2937;
}

.compare-table tbody tr:last-child td {
  border-bottom: none;
}

.compare-table tbody tr:hover {
  background: #f9fafb;
}

.selection-guide {
  background: #fff;
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.selection-guide h4 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 20px;
  text-align: center;
}

.guide-items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.guide-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: #f9fafb;
  border-radius: 10px;
}

.guide-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.guide-item p {
  font-size: 0.95rem;
  color: #4b5563;
  margin: 0;
  line-height: 1.5;
}

.guide-item strong {
  color: #1f2937;
}

/* 应用场景 */
.applications {
  background: #fff;
}

.app-table-wrapper {
  overflow-x: auto;
}

.app-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.app-table th,
.app-table td {
  padding: 20px 24px;
  text-align: left;
  border-bottom: 1px solid #e5e7eb;
}

.app-table th {
  background: #1f2937;
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
}

.app-table td {
  color: #4b5563;
  font-size: 0.95rem;
}

.app-table td:first-child {
  font-weight: 600;
  color: #1f2937;
}

.app-table tbody tr:last-child td {
  border-bottom: none;
}

.app-table tbody tr:hover {
  background: #f9fafb;
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
}

.tag-primary {
  background: rgba(16, 185, 129, 0.15);
  color: #059669;
}

.tag-secondary {
  background: rgba(59, 130, 246, 0.15);
  color: #2563eb;
}

/* 交付服务时间轴 */
.service {
  background: #f9fafb;
}

.service-timeline {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.timeline-item {
  flex: 1;
  max-width: 220px;
  text-align: center;
  position: relative;
  padding: 0 20px;
}

.timeline-item::after {
  content: '→';
  position: absolute;
  right: -10px;
  top: 30px;
  font-size: 1.5rem;
  color: #10b981;
}

.timeline-item:last-child::after {
  display: none;
}

.timeline-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #0052D9, #3B82F6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 16px;
  box-shadow: 0 4px 15px rgba(0, 82, 217, 0.3);
}

.timeline-content h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 0.9rem;
  color: #6b7280;
  line-height: 1.5;
  margin-bottom: 12px;
}

.timeline-duration {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(16, 185, 129, 0.1);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #10b981;
}

.service-promise {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 40px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(0, 82, 217, 0.05));
  border-radius: 16px;
  border: 2px solid #10b981;
}

.promise-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.service-promise h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 12px;
}

.service-promise p {
  font-size: 1.05rem;
  color: #4b5563;
  line-height: 1.7;
  max-width: 600px;
}

/* CTA行动转化区 */
.cta-section {
  background: linear-gradient(135deg, #1e3a5f 0%, #0a1628 100%);
  padding: 100px 0;
}

.cta-section .cta-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.cta-title {
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 24px;
  line-height: 1.3;
}

.cta-desc {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 24px;
}

.cta-list {
  list-style: none;
  display: inline-block;
  text-align: left;
  margin-bottom: 40px;
}

.cta-list li {
  padding: 10px 0;
  font-size: 1.05rem;
  color: #34d399;
  display: flex;
  align-items: center;
  gap: 12px;
}

.check-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: #10b981;
  color: #fff;
  border-radius: 50%;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.cta-buttons .btn-outline {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

.cta-buttons .btn-outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.cta-contact {
  display: flex;
  gap: 30px;
  justify-content: center;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
}

.cta-contact a {
  color: #34d399;
  text-decoration: none;
}

.cta-contact a:hover {
  text-decoration: underline;
}

/* 样品申请表单 */
.sample-form-section {
  background: #f9fafb;
}

.form-wrapper {
  max-width: 800px;
  margin: 0 auto;
  background: #fff;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.form-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #1f2937;
  text-align: center;
  margin-bottom: 30px;
}

.sample-form .form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.sample-form .form-group {
  margin-bottom: 20px;
}

.sample-form .form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: #4b5563;
  margin-bottom: 8px;
}

.sample-form .form-group input,
.sample-form .form-group select,
.sample-form .form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  font-family: inherit;
}

.sample-form .form-group input:focus,
.sample-form .form-group select:focus,
.sample-form .form-group textarea:focus {
  outline: none;
  border-color: #0052D9;
  box-shadow: 0 0 0 3px rgba(0, 82, 217, 0.1);
}

.sample-form .form-actions {
  text-align: center;
  margin-top: 30px;
}

/* 产品页响应式 */
@media (max-width: 992px) {
  .overview-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .structure-diagram {
    flex-direction: column;
    gap: 16px;
  }
  
  .structure-arrow {
    transform: rotate(90deg);
  }
  
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .specs-cards {
    grid-template-columns: 1fr;
  }
  
  .guide-items {
    grid-template-columns: 1fr;
  }
  
  .service-timeline {
    flex-direction: column;
    align-items: center;
    gap: 30px;
  }
  
  .timeline-item::after {
    display: none;
  }
  
  .timeline-item {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .overview-features {
    grid-template-columns: 1fr;
  }
  
  .interface-features {
    grid-template-columns: 1fr;
  }
  
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-title {
    font-size: 1.5rem;
  }
  
  .cta-buttons {
    flex-direction: column;
  }
  
  .cta-contact {
    flex-direction: column;
    gap: 12px;
  }
  
  .sample-form .form-row {
    grid-template-columns: 1fr;
  }
  
  .form-wrapper {
    padding: 30px 20px;
  }
}