/* ===== 产品页面样式 — 与关于我们页面风格统一 ===== */

/* 页面顶部横幅 */
.page-banner {
  margin-top: 70px;
  width: 100%;
  height: 300px;
  position: relative;
  background: url('../images/002.jpg') center center / cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-banner-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

.page-banner-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #FFFFFF;
}

.page-banner-content h1 {
  font-size: 36px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: 2px;
}

.page-banner-content p {
  font-size: 14px;
  letter-spacing: 4px;
  color: rgba(255, 255, 255, 0.8);
}

/* 通用区块 */
.product-intro,
.product-features,
.product-workflow,
.product-api {
  padding: 64px 0;
}

.product-intro {
  background: var(--bg-white);
}

.product-features {
  background: var(--bg-light);
}

.product-workflow {
  background: var(--bg-white);
}

.product-api {
  background: var(--bg-light);
}

.product-section-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 28px;
  position: relative;
  padding-left: 16px;
}

.product-section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background: var(--brand-primary);
  border-radius: 2px;
}

.product-text p {
  font-size: 15px;
  color: var(--text-body);
  line-height: 2;
  margin-bottom: 16px;
  text-indent: 2em;
}

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

.product-actions {
  margin-top: 28px;
}

.product-actions .btn-primary {
  display: inline-block;
  padding: 12px 32px;
  font-size: 15px;
  font-weight: 500;
  background: var(--brand-primary);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  border: none;
  transition: var(--transition);
}

.product-actions .btn-primary:hover {
  background: var(--brand-hover);
}

/* 核心能力网格 */
.product-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.product-feature-card {
  padding: 32px;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.product-feature-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--brand-primary);
  transform: translateY(-2px);
}

.product-feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-light);
  border-radius: 50%;
  margin-bottom: 16px;
}

.product-feature-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--brand-primary);
}

.product-feature-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.product-feature-card p {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.8;
}

/* 编标流程 */
.product-workflow-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 36px;
}

.workflow-steps {
  display: flex;
  gap: 16px;
}

.workflow-step {
  flex: 1;
  padding: 24px 16px;
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
}

.workflow-step:hover {
  border-color: var(--brand-primary);
  box-shadow: var(--shadow-card);
}

.workflow-step-num {
  font-size: 28px;
  font-weight: 700;
  color: var(--brand-primary);
  opacity: 0.6;
  margin-bottom: 12px;
}

.workflow-step h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.workflow-step p {
  font-size: 13px;
  color: var(--text-body);
  line-height: 1.6;
}

/* API 信息网格 */
.api-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 28px;
}

.api-info-item {
  padding: 24px;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.api-info-item:hover {
  border-color: var(--brand-primary);
  box-shadow: var(--shadow-card);
}

.api-info-item h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.api-info-item p {
  font-size: 13px;
  color: var(--text-body);
  line-height: 1.7;
}

/* 响应式 */
@media (max-width: 1023px) {
  .product-features-grid {
    grid-template-columns: 1fr;
  }
  .workflow-steps {
    flex-wrap: wrap;
  }
  .workflow-step {
    flex: 1 1 calc(50% - 8px);
  }
  .api-info-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .page-banner { height: 200px; }
  .page-banner-content h1 { font-size: 26px; }

  .workflow-steps {
    flex-direction: column;
  }
  .workflow-step {
    flex: 1 1 100%;
  }

  .product-intro,
  .product-features,
  .product-workflow,
  .product-api {
    padding: 40px 0;
  }
}

/* ===== 套餐价格 ===== */
.product-pricing {
  padding: 64px 0;
  background: var(--bg-white);
}

.product-pricing-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 36px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 40px 24px 36px;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
  position: relative;
}

.pricing-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--brand-primary);
  transform: translateY(-4px);
}

.pricing-card--featured {
  border-color: var(--brand-primary);
  box-shadow: 0 4px 20px rgba(43, 124, 216, 0.12);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  font-size: 12px;
  font-weight: 600;
  color: #FFFFFF;
  background: var(--brand-primary);
  border-radius: 20px;
  white-space: nowrap;
}

.pricing-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.pricing-amount {
  display: flex;
  align-items: baseline;
  gap: 2px;
  margin-bottom: 8px;
}

.pricing-currency {
  font-size: 20px;
  font-weight: 500;
  color: var(--text-dark);
}

.pricing-value {
  font-size: 48px;
  font-weight: 700;
  color: var(--brand-primary);
  line-height: 1;
}

.pricing-words {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
  width: 100%;
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0;
  width: 100%;
}

.pricing-features li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--text-body);
  position: relative;
  padding-left: 22px;
}

.pricing-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--brand-primary);
  font-weight: 600;
}

/* ===== 为什么选择我们 ===== */
.product-advantages {
  padding: 64px 0;
  background: var(--bg-light);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.advantage-card {
  padding: 28px;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.advantage-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--brand-primary);
  transform: translateY(-2px);
}

.advantage-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-light);
  border-radius: 50%;
  margin-bottom: 16px;
}

.advantage-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--brand-primary);
}

.advantage-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.advantage-card p {
  font-size: 13px;
  color: var(--text-body);
  line-height: 1.8;
}

/* 响应式补充 */
@media (max-width: 1023px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  .product-pricing,
  .product-advantages {
    padding: 40px 0;
  }
}