.page-products {
  --page-bg: #f5f0eb;
  --page-card-bg: #8b7d6b;
  --page-card-bg-light: #9a8d7b;
  --page-card-golden: #c4a97d;
  --page-card-highlight: #b38b6d;
  --page-text-light: #f5f0eb;
  --page-text-dark: #2e2a24;
  --page-accent-gold: #c9a84c;
  --page-timeline-color: #c4a97d;
  --page-tag-primary: #4a5d23;
  --page-tag-gold: #c4a97d;
  --page-tag-brown: #8b7d6b;
  --page-tag-cream: #e8e0d5;
  --page-tag-outline: #2e2a24;
  --page-radius-card: 20px;
  --page-radius-sm: 12px;
  --page-shadow-card: 0 4px 20px rgba(26, 26, 26, 0.12);
  --page-shadow-hover: 0 8px 32px rgba(26, 26, 26, 0.18);
  --page-transition: 300ms ease;

  background-color: var(--page-bg);
  padding: 24px 0 64px;
  min-height: 100vh;
}

.page-products__inner {
  max-width: var(--container-max, 1200px);
  margin: 0 auto;
  padding: 0 16px;
}

/* 面包屑 */
.page-products .breadcrumb {
  margin-bottom: 24px;
}

.page-products .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: 13px;
  color: var(--color-dark-light, #4a443c);
}

.page-products .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--color-gold-dark, #a8882e);
}

.page-products .breadcrumb__link {
  color: var(--color-gold-dark, #a8882e);
  text-decoration: none;
}

.page-products .breadcrumb__link:hover {
  text-decoration: underline;
  color: var(--color-gold, #c9a84c);
}

.page-products .breadcrumb__current {
  color: var(--color-dark-light, #4a443c);
  font-weight: 500;
}

/* Hero区 */
.page-products__hero {
  text-align: center;
  margin-bottom: 48px;
  padding: 32px 16px 24px;
  border-bottom: 2px solid var(--page-card-golden);
}

.page-products__icon-wrap {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 220px;
  height: 220px;
  border-radius: 48px;
  background: linear-gradient(145deg, #e8e0d5, #d5ccc1);
  box-shadow: var(--page-shadow-card);
  margin-bottom: 20px;
  padding: 10px;
}

.page-products__app-icon {
  width: 100%;
  height: 100%;
  border-radius: 40px;
  object-fit: cover;
  display: block;
}

.page-products__title {
  font-family: var(--font-heading, "Noto Serif SC", serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-dark, #2e2a24);
  margin: 0 0 8px;
  line-height: 1.2;
}

.page-products__subtitle {
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: 16px;
  color: var(--color-dark-light, #4a443c);
  margin: 0;
  font-weight: 400;
}

/* 区域间距 */
.page-products__section {
  margin-bottom: 24px;
}

/* 卡片通用 */
.page-products__card {
  background-color: var(--page-card-bg);
  border-radius: var(--page-radius-card);
  box-shadow: var(--page-shadow-card);
  padding: 0;
  overflow: hidden;
  transition: box-shadow var(--page-transition), transform var(--page-transition);
  cursor: pointer;
  color: var(--page-text-light);
}

.page-products__card:hover {
  box-shadow: var(--page-shadow-hover);
  transform: translateY(-2px);
}

.page-products__card--golden {
  background: linear-gradient(145deg, var(--page-card-golden), #b89d6a);
}

.page-products__card--highlight {
  background: linear-gradient(145deg, var(--page-card-highlight), #a07a5e);
}

.page-products__card--full {
  background-color: var(--page-card-bg);
}

/* 卡片头部 */
.page-products__card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  user-select: none;
  transition: background-color var(--page-transition);
}

.page-products__card-header:hover {
  background-color: rgba(255, 255, 255, 0.08);
}

.page-products__card-header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.page-products__card-title {
  font-family: var(--font-heading, "Noto Serif SC", serif);
  font-size: 22px;
  font-weight: 700;
  margin: 0;
  color: var(--page-text-light);
  line-height: 1.3;
}

.page-products__card-toggle {
  font-size: 28px;
  font-weight: 300;
  line-height: 1;
  color: var(--page-text-light);
  opacity: 0.7;
  transition: transform var(--page-transition), opacity var(--page-transition);
  flex-shrink: 0;
  margin-left: 16px;
}

.page-products__card[data-expanded="true"] .page-products__card-toggle {
  transform: rotate(45deg);
  opacity: 1;
}

/* 卡片主体 */
.page-products__card-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 400ms ease, padding 400ms ease;
  padding: 0 24px;
  color: var(--page-text-light);
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: 15px;
  line-height: 1.7;
}

.page-products__card[data-expanded="true"] .page-products__card-body {
  max-height: 1200px;
  padding: 0 24px 24px;
}

.page-products__card-body p {
  margin: 0 0 16px;
}

.page-products__card-body p:last-child {
  margin-bottom: 0;
}

/* 卡片内图片 */
.page-products__card-media {
  margin: 0 0 16px;
  border-radius: var(--page-radius-sm);
  overflow: hidden;
  max-width: 300px;
}

.page-products__card-media--landscape {
  max-width: 100%;
}

.page-products__media-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: var(--page-radius-sm);
}

/* 特性列表 */
.page-products__feature-list {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
}

.page-products__feature-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
}

.page-products__feature-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--page-accent-gold);
  font-weight: 600;
}

/* 标签演示 */
.page-products__tag-demo {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.page-products .tag {
  display: inline-block;
  padding: 4px 16px;
  border-radius: 9999px;
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.6;
}

.page-products .tag--primary {
  background-color: var(--page-tag-primary);
  color: #fff;
}

.page-products .tag--gold {
  background-color: var(--page-tag-gold);
  color: #2e2a24;
}

.page-products .tag--brown {
  background-color: var(--page-tag-brown);
  color: #fff;
}

.page-products .tag--cream {
  background-color: var(--page-tag-cream);
  color: #2e2a24;
}

.page-products .tag--outline {
  background-color: transparent;
  border: 1px solid var(--page-tag-outline);
  color: var(--page-tag-outline);
}

/* 时间轴 */
.page-products__timeline {
  margin: 24px 0 16px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-products__timeline-track {
  display: flex;
  gap: 0;
  position: relative;
  min-width: 480px;
  padding: 20px 0 12px;
  justify-content: space-between;
}

.page-products__timeline-track::before {
  content: "";
  position: absolute;
  top: 44px;
  left: 20px;
  right: 20px;
  height: 3px;
  background: var(--page-timeline-color);
  border-radius: 4px;
  opacity: 0.4;
}

.page-products__timeline-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
  z-index: 2;
  cursor: default;
  transition: transform var(--page-transition);
}

.page-products__timeline-node:hover {
  transform: scale(1.08);
}

.page-products__timeline-node::before {
  content: "";
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--page-card-golden);
  border: 3px solid var(--page-bg);
  box-shadow: 0 0 0 3px var(--page-card-golden);
  transition: background var(--page-transition), box-shadow var(--page-transition);
}

.page-products__timeline-node:hover::before {
  background: var(--page-accent-gold);
  box-shadow: 0 0 0 4px var(--page-accent-gold);
}

.page-products__node-label {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 13px;
  font-weight: 500;
  color: var(--page-text-light);
  white-space: nowrap;
  opacity: 0.85;
}

.page-products__timeline-decoration {
  margin-top: 24px;
  border-radius: var(--page-radius-sm);
  overflow: hidden;
}

.page-products__timeline-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: var(--page-radius-sm);
}

/* 更新详情 */
.page-products__update-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--page-radius-sm);
  object-fit: cover;
  display: block;
  flex-shrink: 0;
}

.page-products__version-tag {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  padding: 4px 16px;
  border-radius: 9999px;
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 13px;
  color: var(--page-text-light);
  margin-bottom: 16px;
}

.page-products__update-list {
  list-style: none;
  padding: 0;
  margin: 16px 0;
}

.page-products__update-list li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 12px;
  line-height: 1.6;
}

.page-products__update-list li::before {
  content: "◆";
  position: absolute;
  left: 0;
  color: var(--page-accent-gold);
  font-size: 12px;
}

.page-products__update-list li strong {
  color: var(--page-text-light);
  font-weight: 600;
}

/* 备注 */
.page-products__note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--page-radius-sm);
  padding: 12px 16px;
  margin-top: 16px;
}

.page-products__note-icon {
  flex-shrink: 0;
  font-size: 16px;
  color: var(--page-accent-gold);
  line-height: 1.4;
}

.page-products__note--update {
  background: rgba(255, 255, 255, 0.12);
  border-left: 3px solid var(--page-accent-gold);
}

/* CTA */
.page-products__cta {
  text-align: center;
  margin-top: 48px;
  padding: 32px 16px;
  background: rgba(139, 125, 107, 0.08);
  border-radius: var(--page-radius-card);
}

.page-products__cta-text {
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: 16px;
  color: var(--color-dark-light, #4a443c);
  margin: 0 0 16px;
}

.page-products .btn--gold {
  display: inline-block;
  padding: 12px 36px;
  background: var(--page-card-golden);
  color: var(--color-dark, #2e2a24);
  border-radius: 9999px;
  font-family: var(--font-body, "Noto Sans SC", sans-serif);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: background var(--page-transition), transform var(--page-transition), box-shadow var(--page-transition);
  box-shadow: 0 2px 8px rgba(196, 169, 125, 0.3);
}

.page-products .btn--gold:hover {
  background: var(--page-accent-gold);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(196, 169, 125, 0.4);
}

/* 文本工具 */
.page-products .text-small {
  font-size: 13px;
  line-height: 1.5;
}

.page-products .text-center {
  text-align: center;
}

/* 响应式 */
@media (max-width: 767px) {
  .page-products {
    padding: 16px 0 48px;
  }

  .page-products__inner {
    padding: 0 12px;
  }

  .page-products__hero {
    padding: 20px 8px 16px;
    margin-bottom: 32px;
  }

  .page-products__icon-wrap {
    width: 140px;
    height: 140px;
    padding: 8px;
    border-radius: 32px;
  }

  .page-products__app-icon {
    border-radius: 28px;
  }

  .page-products__title {
    font-size: 26px;
  }

  .page-products__subtitle {
    font-size: 14px;
  }

  .page-products__card-header {
    padding: 16px 16px;
  }

  .page-products__card-title {
    font-size: 18px;
  }

  .page-products__card-body {
    padding: 0 16px;
    font-size: 14px;
  }

  .page-products__card[data-expanded="true"] .page-products__card-body {
    padding: 0 16px 16px;
  }

  .page-products__card-toggle {
    font-size: 24px;
  }

  .page-products__card-media {
    max-width: 100%;
  }

  .page-products__card-media--landscape {
    max-width: 100%;
  }

  .page-products__timeline-track {
    min-width: 360px;
    padding: 16px 0 8px;
  }

  .page-products__timeline-node::before {
    width: 14px;
    height: 14px;
  }

  .page-products__node-label {
    font-size: 11px;
  }

  .page-products__update-icon {
    width: 60px;
    height: 60px;
  }

  .page-products__cta {
    margin-top: 32px;
    padding: 24px 12px;
  }

  .page-products .btn--gold {
    padding: 10px 28px;
    font-size: 14px;
  }

  .page-products__tag-demo {
    gap: 8px;
  }

  .page-products .tag {
    font-size: 12px;
    padding: 3px 12px;
  }

  .page-products__hero {
    border-bottom-width: 1px;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .page-products__inner {
    padding: 0 24px;
  }

  .page-products__card-header {
    padding: 20px 24px;
  }

  .page-products__card-body {
    padding: 0 24px;
  }

  .page-products__card[data-expanded="true"] .page-products__card-body {
    padding: 0 24px 24px;
  }

  .page-products__card-media {
    max-width: 260px;
  }

  .page-products__card-media--landscape {
    max-width: 100%;
  }
}

@media (min-width: 1024px) {
  .page-products__inner {
    padding: 0 32px;
  }

  .page-products__hero {
    padding: 40px 32px 28px;
  }

  .page-products__icon-wrap {
    width: 220px;
    height: 220px;
  }

  .page-products__title {
    font-size: 36px;
  }

  .page-products__subtitle {
    font-size: 18px;
  }

  .page-products__card-header {
    padding: 24px 32px;
  }

  .page-products__card-title {
    font-size: 24px;
  }

  .page-products__card-body {
    padding: 0 32px;
    font-size: 16px;
  }

  .page-products__card[data-expanded="true"] .page-products__card-body {
    padding: 0 32px 28px;
  }

  .page-products__card-media {
    max-width: 300px;
  }

  .page-products__card-media--landscape {
    max-width: 100%;
  }

  /* 两栏布局 */
  .page-products__section:not(:first-of-type):not(:last-of-type) {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .page-products__section:first-of-type,
  .page-products__section:last-of-type {
    grid-column: 1 / -1;
  }

  .page-products__section#version-index {
    grid-column: 1 / -1;
  }
}