/* 产品详情页样式 — 复用全站色彩与组件规范 */

.product-page main {
  padding-top: var(--header-h);
}

/* 模块1：产品 Banner */
.product-hero {
  position: relative;
  padding: 64px 0 72px;
  background: var(--bg-page);
  overflow: hidden;
}

.product-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.product-hero-copy h1 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 12px;
}

.product-hero-tagline {
  font-size: 16px;
  color: var(--color-main);
  font-weight: 600;
  margin-bottom: 16px;
}

.product-hero-slogan {
  font-size: 15px;
  color: var(--text-body);
  max-width: 32em;
  margin-bottom: 28px;
}

.product-hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.product-hero-media {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.product-hero-media img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
}

/* 模块2：核心亮点 — 复用 solution-card */
.product-highlights .solution-grid {
  margin-top: 0;
}

/* 模块3：流程总图 — 简化版 */
.product-flow {
  background: var(--bg-block-light);
}

.product-flow-diagram {
  max-width: 100%;
  margin: 0 auto;
}

.product-flow-board {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0;
  padding: 32px 24px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(15, 82, 186, 0.08);
}

.product-flow-panel {
  flex: 1;
  min-width: 0;
  max-width: 240px;
  text-align: center;
  padding: 8px 12px;
  position: relative;
}

.product-flow-step-num {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-main), var(--color-gradient-blue));
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
}

.product-flow-panel-img {
  width: 100%;
  aspect-ratio: 1;
  margin: 0 auto 14px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-block-light);
  border: 1px solid rgba(15, 82, 186, 0.06);
}

.product-flow-panel-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.product-flow-panel h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-title);
  margin: 0 0 8px;
  line-height: 1.35;
}

.product-flow-panel p {
  font-size: 13px;
  color: var(--text-body);
  margin: 0;
  line-height: 1.55;
}

.product-flow-arrow {
  flex-shrink: 0;
  align-self: center;
  width: 28px;
  height: 2px;
  margin: 0 4px;
  background: linear-gradient(90deg, var(--color-assist-cyan), var(--color-gradient-blue));
  position: relative;
}

.product-flow-arrow::after {
  content: "";
  position: absolute;
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-left-color: var(--color-gradient-blue);
}

.product-flow-note {
  text-align: center;
  font-size: 14px;
  color: var(--text-tip);
  margin-top: 20px;
}

/* 模块4：预约演示 — 浅蓝渐变 */
.product-lead {
  background: linear-gradient(135deg, #e8f4ff 0%, #f0f8ff 50%, #e6f2ff 100%);
  padding: 72px 0;
}

.product-lead-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.product-lead-copy h2 {
  font-size: clamp(1.4rem, 2.2vw, 1.85rem);
  margin-bottom: 12px;
}

.product-lead-copy p {
  font-size: 15px;
  color: var(--text-body);
  margin: 0;
}

.product-lead-form {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(15, 82, 186, 0.08);
}

.product-lead-form .form-field {
  margin-bottom: 14px;
}

/* 相关产品推荐 */
.product-related .solution-grid {
  grid-template-columns: repeat(3, 1fr);
}

.product-related .solution-card h3 {
  font-size: 16px;
}

.nav-link.is-active-page::after {
  width: 18px;
}

@media (max-width: 900px) {
  .product-hero-grid,
  .product-lead-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .product-flow-board {
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 24px 20px;
  }

  .product-flow-panel {
    max-width: 100%;
    width: 100%;
    padding: 16px;
    background: var(--bg-block-light);
    border-radius: var(--radius-sm);
  }

  .product-flow-arrow {
    width: 2px;
    height: 20px;
    margin: 4px 0;
    background: linear-gradient(180deg, var(--color-assist-cyan), var(--color-gradient-blue));
  }

  .product-flow-arrow::after {
    right: auto;
    left: 50%;
    top: auto;
    bottom: -1px;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--color-gradient-blue);
    border-left-color: transparent;
  }

  .nav-dropdown {
    min-width: 280px;
    left: 0;
    transform: translateY(8px);
  }

  .nav-dropdown-wrap.is-open .nav-dropdown {
    transform: translateY(0);
  }

  .nav-dropdown-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1100px) {
  .nav-dropdown {
    display: none;
  }
}

@media (max-width: 640px) {
  .product-related .solution-grid {
    grid-template-columns: 1fr;
  }
}