/* ===== 平台服务页专属样式 ===== */
.page-products {
  --color-primary: #0A1F44;
  --color-primary-light: #1A3A6B;
  --color-accent: #F26C23;
  --color-accent-hover: #e05d1a;
  --color-bg: #F5F5F5;
  --color-text: #212121;
  --color-text-light: #D0D0D0;
  --color-secondary: #3D7B99;
  --color-white: #FFFFFF;
  --content-max-width: 1200px;
  --border-radius-lg: 20px;
  --border-radius-md: 12px;
  --transition-speed: 0.3s;
}

/* ---- 横幅区域 ---- */
.page-products .banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  padding: 3rem 0;
  position: relative;
  overflow: hidden;
}

.page-products .banner::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(45deg, transparent, transparent 20px, rgba(255,255,255,0.02) 20px, rgba(255,255,255,0.02) 40px);
  pointer-events: none;
}

.page-products .banner-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  position: relative;
  z-index: 1;
}

.page-products .banner-text {
  text-align: center;
  max-width: 700px;
}

.page-products .banner-label {
  color: var(--color-accent);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.page-products .banner-headline {
  font-family: var(--font-headline, Georgia, serif);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.15;
  margin: 0 0 1rem;
}

.page-products .banner-desc {
  color: var(--color-text-light);
  font-size: 1.125rem;
  max-width: 540px;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}

.page-products .banner-jump {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.page-products .banner-jump .btn {
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.6rem 1.2rem;
}

.page-products .banner-visual {
  max-width: 600px;
  width: 100%;
}

.page-products .banner-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius-md);
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}

/* ---- 服务卡片 ---- */
.page-products .services {
  padding: 2rem 0;
}

.page-products .service-card {
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  margin-bottom: 1.5rem;
  transition: box-shadow var(--transition-speed) ease;
  overflow: hidden;
}

.page-products .service-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.10);
}

.page-products .service-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  user-select: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-speed) ease;
}

.page-products .service-card[data-expandable][data-open] .service-card-header {
  border-bottom-color: var(--color-bg);
}

.page-products .service-card-title {
  font-family: var(--font-headline, Georgia, serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0;
}

.page-products .service-card-toggle {
  display: inline-block;
  width: 32px;
  height: 32px;
  line-height: 32px;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-accent);
  transition: transform var(--transition-speed) ease;
  flex-shrink: 0;
}

.page-products .service-card[data-open] .service-card-toggle {
  transform: rotate(45deg);
}

.page-products .service-card-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 1.5rem;
}

.page-products .service-card[data-open] .service-card-body {
  max-height: 800px;
  padding: 1.5rem;
}

.page-products .service-card-text p {
  margin: 0 0 1rem;
  color: var(--color-text);
  line-height: 1.6;
  font-size: 1rem;
}

.page-products .service-card-text ul {
  margin: 0.5rem 0 1rem;
  padding-left: 1.2rem;
  color: var(--color-text);
  line-height: 1.7;
}

.page-products .service-card-text li {
  margin-bottom: 0.3rem;
}

.page-products .service-card-img {
  margin-top: 1.5rem;
}

.page-products .service-card-img img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius-md);
}

.page-products .sync-svg {
  display: block;
  margin: 1rem auto 0;
  max-width: 100%;
}

/* ---- 导航链接区 ---- */
.page-products .services-nav {
  padding: 2rem 0 4rem;
  background: var(--color-bg);
}

.page-products .nav-list-extra {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}

.page-products .nav-link-extra {
  color: var(--color-secondary);
  text-decoration: none;
  font-size: 1rem;
  transition: color var(--transition-speed) ease;
}

.page-products .nav-link-extra:hover {
  color: var(--color-accent);
}

/* ---- 滚动显现 ---- */
.page-products .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.page-products .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.page-products .reveal-delay-1 { transition-delay: 0.1s; }
.page-products .reveal-delay-2 { transition-delay: 0.2s; }
.page-products .reveal-delay-3 { transition-delay: 0.3s; }
.page-products .reveal-delay-4 { transition-delay: 0.4s; }

/* ---- 移动端优先适配 ---- */
@media (max-width: 767px) {
  .page-products .banner-headline {
    font-size: 1.8rem;
  }

  .page-products .banner-jump .btn {
    font-size: 0.8rem;
    padding: 0.5rem 1rem;
  }

  .page-products .service-card-header {
    padding: 1rem 1.25rem;
  }

  .page-products .service-card-title {
    font-size: 1.25rem;
  }

  .page-products .service-card-body {
    padding: 0 1.25rem;
  }

  .page-products .service-card[data-open] .service-card-body {
    padding: 1.25rem;
  }
}

/* ---- 桌面及以上 ---- */
@media (min-width: 768px) {
  .page-products .banner-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .page-products .banner-text {
    text-align: left;
    flex: 1 1 50%;
  }

  .page-products .banner-visual {
    flex: 0 0 45%;
  }

  .page-products .banner-desc {
    margin-left: 0;
    margin-right: 0;
  }

  .page-products .banner-jump {
    justify-content: flex-start;
  }

  .page-products .banner-headline {
    font-size: 3rem;
  }

  .page-products .services {
    padding: 3rem 0;
  }

  .page-products .service-card {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
  }

  .page-products .service-card-header {
    padding: 1.5rem 2rem;
  }

  .page-products .service-card-title {
    font-size: 1.75rem;
  }

  .page-products .service-card-body {
    padding: 0 2rem;
  }

  .page-products .service-card[data-open] .service-card-body {
    padding: 2rem;
  }

  .page-products .nav-list-extra {
    flex-direction: row;
    justify-content: center;
    gap: 2rem;
  }
}

@media (min-width: 1024px) {
  .page-products .banner {
    padding: 4rem 0;
  }

  .page-products .banner-headline {
    font-size: 3.5rem;
  }

  .page-products .services {
    padding: 4rem 0;
  }
}

/* ---- 减少动效 ---- */
@media (prefers-reduced-motion: reduce) {
  .page-products .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-products .service-card-body {
    transition: none;
  }

  .page-products .service-card-toggle {
    transition: none;
  }
}