.page-products {
  display: block;
  --services-index-w: 280px;
  --decor-h: 6px;
  --card-radius: 6px;
}

/* ===== 面包屑 ===== */
.page-products .breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}
.page-products .breadcrumb__link {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.page-products .breadcrumb__link:hover,
.page-products .breadcrumb__link:focus-visible {
  color: var(--color-primary);
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
.page-products .breadcrumb__sep {
  user-select: none;
  opacity: 0.5;
}
.page-products .breadcrumb__current {
  color: var(--color-text-light);
  font-weight: 600;
}

/* ===== 左右分栏 ===== */
.page-products .services-layout {
  display: flex;
  flex-direction: column;
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
  padding: 0 var(--spacing-md) var(--spacing-xl);
  gap: var(--spacing-lg);
}

/* ===== 左侧索引（移动端：横向标签栏） ===== */
.page-products .services-index {
  flex-shrink: 0;
  width: 100%;
  background: var(--color-bg-panel);
  border-radius: var(--card-radius);
  border: 1px solid var(--color-secondary);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.page-products .services-index__inner {
  padding: var(--spacing-md);
}
.page-products .services-index__heading {
  font-family: var(--font-heading);
  font-size: var(--font-size-h2);
  font-weight: 700;
  font-style: italic;
  letter-spacing: 4px;
  color: var(--color-primary);
  margin: 0 0 var(--spacing-xs);
  line-height: 1;
}
.page-products .services-index__tagline {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--spacing-md);
  line-height: 1.4;
}
.page-products .services-index__list {
  display: flex;
  flex-direction: row;
  gap: var(--spacing-xs);
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) var(--color-bg-dark);
  -webkit-overflow-scrolling: touch;
  padding-bottom: var(--spacing-xs);
}
.page-products .services-index__list::-webkit-scrollbar {
  height: 4px;
}
.page-products .services-index__list::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 2px;
}

/* ===== 标签按钮 ===== */
.page-products .services-index__tab {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text-muted);
  transition: all 0.3s ease;
  white-space: nowrap;
  position: relative;
  flex-shrink: 0;
}
.page-products .services-index__tab:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--border-radius);
}
.page-products .services-index__tab[aria-selected="true"] {
  color: var(--color-text-light);
  border-bottom-color: var(--color-primary);
}
.page-products .services-index__tab[aria-selected="true"] .services-index__tab-number {
  color: var(--color-primary);
  background: rgba(230,57,70,0.15);
}
.page-products .services-index__tab:hover:not([aria-selected="true"]) {
  color: var(--color-text-light);
  border-bottom-color: var(--color-secondary);
}
.page-products .services-index__tab-number {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  font-style: italic;
  color: var(--color-text-muted);
  padding: 2px 10px 2px 8px;
  background: rgba(168,178,193,0.1);
  transition: all 0.3s ease;
  clip-path: polygon(0 0, 100% 0, 92% 100%, 0 100%);
  line-height: 1.4;
}
.page-products .services-index__tab-text {
  font-weight: 600;
  letter-spacing: 1px;
}
.page-products .services-index__tab-line {
  display: none;
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.page-products .services-index__tab[aria-selected="true"] .services-index__tab-line {
  display: block;
  transform: scaleX(1);
}

/* ===== 右侧内容区 ===== */
.page-products .services-content {
  flex: 1;
  min-width: 0;
}
.page-products .services-content__panel {
  display: none;
  animation: panelFadeIn 0.45s ease;
}
.page-products .services-content__panel[data-active="true"] {
  display: block;
}
@keyframes panelFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== 服务卡片 ===== */
.page-products .service-card {
  background: var(--color-bg-panel);
  border-radius: var(--card-radius);
  border: 1px solid var(--color-secondary);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  position: relative;
}
.page-products .service-card__decor {
  height: var(--decor-h);
  width: 100%;
  clip-path: polygon(0 0, 100% 0, 98% 100%, 0 100%);
  transition: background 0.3s;
}
/* 色彩分区 */
.page-products .service-card--red .service-card__decor {
  background: var(--color-primary);
}
.page-products .service-card--green .service-card__decor {
  background: var(--color-accent);
}
.page-products .service-card--amber .service-card__decor {
  background: var(--color-amber);
}
.page-products .service-card--silver .service-card__decor {
  background: var(--color-secondary);
}

.page-products .service-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg) var(--spacing-md);
}

/* ===== 卡片文字区 ===== */
.page-products .service-card__info {
  order: 1;
}
.page-products .service-card__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-h2);
  font-weight: 700;
  font-style: italic;
  letter-spacing: 2px;
  color: var(--color-text-light);
  margin: 0 0 var(--spacing-sm);
  line-height: 1.1;
}
.page-products .service-card__title-accent {
  color: var(--color-secondary);
  font-weight: 400;
}
.page-products .service-card__desc {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-light);
  margin: 0 0 var(--spacing-md);
  max-width: 480px;
}
.page-products .service-card__features {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm) var(--spacing-md);
}
.page-products .service-card__feature {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}
.page-products .service-card__feature-icon {
  color: var(--color-primary);
  font-size: 0.8rem;
  flex-shrink: 0;
}
.page-products .service-card__link {
  display: inline-block;
  font-size: 0.9rem;
  margin-top: var(--spacing-sm);
}

/* ===== 卡片媒体区 ===== */
.page-products .service-card__media {
  order: 2;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}
.page-products .service-card__img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--border-radius);
  border: 1px solid rgba(168,178,193,0.2);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.page-products .service-card__img--phone {
  max-width: 180px;
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.5);
}
.page-products .service-card__img--landscape {
  width: 100%;
  max-width: 500px;
  aspect-ratio: 500 / 280;
  object-position: center;
}
.page-products .service-card__img--square {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 4 / 3;
  object-position: center;
}
.page-products .service-card__img--portrait {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 4 / 5;
  object-position: center;
}
.page-products .service-card__img:hover {
  transform: scale(1.02);
  box-shadow: 0 6px 24px rgba(230,57,70,0.15);
}

/* ===== 下载卡片额外样式 ===== */
.page-products .service-card__media-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}
.page-products .service-card__badges {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: rgba(168,178,193,0.08);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  border: 1px dashed var(--color-secondary);
}
.page-products .service-card__badge-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 50%;
  border: 1px solid var(--color-secondary);
  flex-shrink: 0;
}
.page-products .service-card__badge-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-accent);
}

/* ===== 桌面端（≥768px） ===== */
@media (min-width: 768px) {
  .page-products .services-layout {
    flex-direction: row;
    align-items: flex-start;
    padding: 0 var(--spacing-lg) var(--spacing-xl);
    gap: var(--spacing-xl);
  }

  .page-products .services-index {
    width: var(--services-index-w);
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-md));
    flex-shrink: 0;
    border-radius: var(--card-radius);
    max-height: calc(100vh - var(--header-height) - var(--spacing-xl));
    overflow-y: auto;
  }
  .page-products .services-index__inner {
    padding: var(--spacing-lg);
  }
  .page-products .services-index__heading {
    font-size: 2.8rem;
    letter-spacing: 6px;
  }
  .page-products .services-index__tagline {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-lg);
  }
  .page-products .services-index__list {
    flex-direction: column;
    gap: var(--spacing-xs);
    overflow-x: visible;
    padding-bottom: 0;
  }
  .page-products .services-index__tab {
    border-bottom: none;
    border-left: 3px solid transparent;
    padding: var(--spacing-md) var(--spacing-sm);
    white-space: normal;
    width: 100%;
    text-align: left;
  }
  .page-products .services-index__tab[aria-selected="true"] {
    border-left-color: var(--color-primary);
    border-bottom-color: transparent;
    background: rgba(230,57,70,0.08);
  }
  .page-products .services-index__tab:hover:not([aria-selected="true"]) {
    border-left-color: var(--color-secondary);
    border-bottom-color: transparent;
    background: rgba(168,178,193,0.05);
  }
  .page-products .services-index__tab-number {
    font-size: 1.4rem;
  }
  .page-products .services-index__tab-text {
    font-size: 1rem;
  }
  .page-products .services-index__tab-line {
    display: none !important;
  }

  .page-products .service-card__body {
    flex-direction: row;
    align-items: flex-start;
    padding: var(--spacing-xl);
    gap: var(--spacing-xl);
  }
  .page-products .service-card__info {
    order: 0;
    flex: 1;
  }
  .page-products .service-card__media {
    order: 0;
    flex-shrink: 0;
    width: auto;
    max-width: 45%;
  }
  .page-products .service-card__title {
    font-size: var(--font-size-h1);
  }
  .page-products .service-card__img--phone {
    max-width: 220px;
  }
  .page-products .service-card__img--landscape {
    max-width: 460px;
  }
  .page-products .service-card__img--square {
    max-width: 360px;
  }
  .page-products .service-card__img--portrait {
    max-width: 340px;
  }
  .page-products .service-card__badge-img {
    width: 48px;
    height: 48px;
  }
}

/* ===== 大桌面端（≥1024px） ===== */
@media (min-width: 1024px) {
  .page-products .services-index {
    width: 300px;
  }
  .page-products .services-index__heading {
    font-size: 3.2rem;
  }
  .page-products .services-index__tab-number {
    font-size: 1.6rem;
  }
  .page-products .services-index__tab-text {
    font-size: 1.05rem;
  }
  .page-products .service-card__body {
    padding: var(--spacing-xl) calc(var(--spacing-xl) * 1.25);
  }
  .page-products .service-card__img--phone {
    max-width: 260px;
  }
  .page-products .service-card__img--landscape {
    max-width: 520px;
  }
  .page-products .service-card__img--square {
    max-width: 400px;
  }
  .page-products .service-card__img--portrait {
    max-width: 380px;
  }
}

/* ===== 极窄屏适配 ===== */
@media (max-width: 380px) {
  .page-products .services-index__tab {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.85rem;
  }
  .page-products .services-index__tab-number {
    font-size: 1rem;
    padding: 1px 8px 1px 6px;
  }
  .page-products .service-card__body {
    padding: var(--spacing-md) var(--spacing-sm);
  }
  .page-products .service-card__title {
    font-size: var(--font-size-h3);
  }
  .page-products .service-card__img--phone {
    max-width: 140px;
  }
}