.page-products {
  --products-accent: #d4af37;
  --products-primary: #1a2a3a;
  --products-bg: #f7f7f5;
  --products-surface: #ffffff;
  --products-border: rgba(212, 175, 55, 0.28);
  --products-text-secondary: #4e5d6a;
  --products-glass: rgba(255, 255, 255, 0.72);

  position: relative;
  background: var(--products-bg);
  color: var(--color-text, #14212e);
  overflow-x: clip;
}

/* ===== 装饰 ===== */
.page-products .products-bg-decor {
  position: absolute;
  /* 装饰图不占布局，移出可视区域避免混乱 */
  top: 9999px;
  left: 9999px;
  width: 400px;
  height: 400px;
  opacity: 0.18;
  pointer-events: none;
}

/* ===== 面包屑 ===== */
.page-products .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 1.25rem 1rem 0;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.85rem;
  color: var(--products-text-secondary);
}

.page-products .breadcrumbs a {
  color: var(--products-primary);
  text-decoration: none;
  transition: color var(--transition, 0.25s ease);
}

.page-products .breadcrumbs a:hover,
.page-products .breadcrumbs a:focus-visible {
  color: var(--products-accent);
  outline: 2px solid var(--products-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

.page-products .breadcrumbs__sep {
  color: var(--products-accent);
}

/* ===== 首屏 Hero ===== */
.page-products .products-hero {
  padding: 2.5rem 1rem 1.5rem;
}

.page-products .products-hero__inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 2rem 0;
  border-bottom: 1px solid var(--products-border);
  position: relative;
}

.page-products .products-hero__inner::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  width: 64px;
  height: 3px;
  background: var(--products-accent);
}

.page-products .products-hero__kicker {
  font-family: var(--font-mono, monospace);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--products-accent);
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.page-products .products-hero__title {
  font-family: var(--font-heading, 'Noto Serif SC', serif);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--products-primary);
  margin: 0 0 1rem;
}

.page-products .products-hero__lead {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--products-text-secondary);
  max-width: 640px;
}

.page-products .products-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.page-products .meta-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.78rem;
  border: 1px solid var(--products-border);
  background: var(--products-surface);
  color: var(--products-primary);
}

.page-products .meta-tag--accent {
  background: var(--products-accent);
  border-color: var(--products-accent);
  color: var(--products-primary);
  font-weight: 600;
}

/* ===== 布局骨架 ===== */
.page-products .products-layout {
  display: block;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

.page-products .products-main {
  max-width: 960px;
}

/* ===== 侧边目录 ===== */
.page-products .products-side {
  display: none;
}

/* ===== 章节通用 ===== */
.page-products .products-section {
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--products-border);
}

.page-products .products-section--wide {
  max-width: 100%;
}

.page-products .products-section--narrow {
  max-width: 100%;
}

.page-products .section__header {
  margin-bottom: 2rem;
}

.page-products .section__index {
  font-family: var(--font-mono, monospace);
  font-size: 0.85rem;
  color: var(--products-accent);
  margin-bottom: 0.4rem;
  letter-spacing: 0.08em;
}

.page-products .section__title {
  font-family: var(--font-heading, 'Noto Serif SC', serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--products-primary);
  margin: 0 0 0.8rem;
  line-height: 1.35;
}

.page-products .section__desc {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--products-text-secondary);
  max-width: 640px;
}

/* ===== 档位图 ===== */
.page-products .tiers-figure {
  margin: 0 0 1.5rem;
}

.page-products .tiers-figure__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--products-border);
  display: block;
}

/* ===== 档位表 ===== */
.page-products .tiers-table-wrap {
  overflow-x: auto;
  border-radius: 10px;
  border: 1px solid var(--products-border);
  background: var(--products-surface);
  box-shadow: 0 6px 18px rgba(26, 42, 58, 0.06);
}

.page-products .tiers-table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.92rem;
}

.page-products .tiers-table th,
.page-products .tiers-table td {
  padding: 0.9rem 1rem;
  text-align: left;
  border-bottom: 1px solid #e8e4da;
}

.page-products .tiers-table thead th {
  background: var(--products-primary);
  color: var(--products-accent);
  font-family: var(--font-heading, 'Noto Serif SC', serif);
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-products .tiers-table thead th:first-child {
  border-radius: 10px 0 0 0;
}

.page-products .tiers-table thead th:last-child {
  border-radius: 0 10px 0 0;
}

.page-products .tiers-table tbody tr:last-child td,
.page-products .tiers-table tbody tr:last-child th {
  border-bottom: none;
}

.page-products .tiers-table tbody tr {
  transition: background-color var(--transition, 0.25s ease), box-shadow var(--transition, 0.25s ease);
}

.page-products .tiers-table tbody tr:hover,
.page-products .tiers-table tbody tr:focus-visible {
  background: rgba(212, 175, 55, 0.08);
  box-shadow: inset 3px 0 0 var(--products-accent);
  outline: none;
}

.page-products .tiers-table tbody tr.is-current {
  background: rgba(212, 175, 55, 0.06);
  border-left: 3px solid var(--products-accent);
}

.page-products .tiers-table tbody tr.is-current th {
  position: relative;
}

.page-products .tiers-table tbody tr.is-current th::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--products-accent);
}

.page-products .tiers-table tbody th {
  font-weight: 600;
  color: var(--products-primary);
  white-space: nowrap;
}

.page-products .tier-name {
  display: block;
  font-family: var(--font-heading, 'Noto Serif SC', serif);
  font-size: 1rem;
}

.page-products .tier-tag {
  display: inline-block;
  margin-top: 0.25rem;
  padding: 0.15rem 0.5rem;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--products-primary);
  background: var(--products-accent);
  border-radius: 999px;
  letter-spacing: 0.04em;
}

.page-products .tiers-table tbody td {
  color: var(--products-text-secondary);
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.88rem;
  white-space: nowrap;
}

.page-products .tiers-table tbody td:last-child {
  color: var(--products-primary);
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.88rem;
  white-space: normal;
  min-width: 180px;
  line-height: 1.5;
}

.page-products .tiers-note {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.82rem;
  color: var(--products-text-secondary);
  margin-top: 1rem;
  padding-left: 0.8rem;
  border-left: 3px solid var(--products-accent);
}

/* ===== 订阅周期 ===== */
.page-products .cycles-wrap {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.page-products .cycles-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-products .cycles-timeline::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: linear-gradient(to bottom, var(--products-accent) 0%, var(--products-primary) 100%);
  opacity: 0.3;
}

.page-products .cycles-timeline__item {
  position: relative;
  padding-left: 3.5rem;
  padding-bottom: 2rem;
}

.page-products .cycles-timeline__item:last-child {
  padding-bottom: 0;
}

.page-products .cycles-timeline__dot {
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--products-primary);
  color: var(--products-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.75rem;
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.15);
  transition: box-shadow var(--transition, 0.25s ease);
  cursor: default;
}

.page-products .cycles-timeline__dot:hover,
.page-products .cycles-timeline__dot:focus-visible {
  box-shadow: 0 0 0 6px rgba(212, 175, 55, 0.3);
  outline: none;
}

.page-products .cycles-timeline__title {
  font-family: var(--font-heading, 'Noto Serif SC', serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--products-primary);
  margin: 0 0 0.4rem;
}

.page-products .cycles-timeline__text {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--products-text-secondary);
  margin: 0;
}

.page-products .cycles-figure {
  margin: 0;
}

.page-products .cycles-figure__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--products-border);
}

.page-products .cycles-figure__caption {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.8rem;
  color: var(--products-text-secondary);
  text-align: center;
  margin-top: 0.6rem;
}

.page-products .cycles-rules {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 1.2rem 1.4rem;
  background: var(--products-glass);
  border: 1px solid var(--products-border);
  border-radius: 10px;
  backdrop-filter: blur(8px);
  display: grid;
  gap: 0.6rem;
}

.page-products .cycles-rules li {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--products-primary);
  padding-left: 1rem;
  position: relative;
}

.page-products .cycles-rules li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--products-accent);
  font-weight: 700;
}

/* ===== 工具卡片 ===== */
.page-products .tool-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  background: var(--products-glass);
  border: 1px solid var(--products-border);
  border-radius: 14px;
  padding: 1.5rem;
  backdrop-filter: blur(10px);
}

.page-products .tool-card__visual {
  margin: 0;
}

.page-products .tool-card__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--products-border);
  display: block;
}

.page-products .tool-card__title {
  font-family: var(--font-heading, 'Noto Serif SC', serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--products-primary);
  margin: 0 0 1rem;
}

.page-products .tool-card__list {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.page-products .tool-card__list li {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--products-text-secondary);
  padding-left: 1rem;
  position: relative;
}

.page-products .tool-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--products-accent);
  border-radius: 50%;
}

.page-products .tool-card__key {
  display: inline-block;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.78rem;
  color: var(--products-accent);
  background: var(--products-primary);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  margin-right: 0.3rem;
  white-space: nowrap;
}

.page-products .tool-card__tip {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.8rem;
  color: var(--products-text-secondary);
  background: rgba(26, 42, 58, 0.04);
  border-radius: 6px;
  padding: 0.6rem 0.8rem;
  margin: 0;
}

.page-products .tool-card__code {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.75rem;
  color: var(--products-primary);
  background: rgba(212, 175, 55, 0.15);
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
}

/* ===== 兼容性 ===== */
.page-products .compat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.page-products .compat-item {
  background: var(--products-surface);
  border: 1px solid var(--products-border);
  border-radius: 10px;
  padding: 1rem 1.1rem;
  transition: background-color var(--transition, 0.25s ease);
}

.page-products .compat-item:hover {
  background: rgba(212, 175, 55, 0.05);
}

.page-products .compat-item__title {
  font-family: var(--font-heading, 'Noto Serif SC', serif);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--products-primary);
  margin: 0 0 0.6rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--products-border);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.page-products .compat-item__title::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--products-accent);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.page-products .compat-item__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.page-products .compat-item__list li {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--products-text-secondary);
  padding-left: 0.75rem;
  position: relative;
}

.page-products .compat-item__list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--products-accent);
  font-size: 0.8rem;
}

.page-products .compat-figure {
  margin: 0;
}

.page-products .compat-figure__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--products-border);
}

/* ===== 跨页链接 ===== */
.page-products .products-crosslinks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
}

.page-products .products-crosslinks .btn {
  text-decoration: none;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 0.55rem 1.1rem;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: all var(--transition, 0.25s ease);
}

.page-products .products-crosslinks .btn--dark {
  background: var(--products-primary);
  color: var(--products-accent);
  border-color: var(--products-primary);
}

.page-products .products-crosslinks .btn--dark:hover,
.page-products .products-crosslinks .btn--dark:focus-visible {
  background: rgba(26, 42, 58, 0.85);
  outline: 2px solid var(--products-accent);
  outline-offset: 2px;
}

.page-products .products-crosslinks .btn--accent {
  background: var(--products-accent);
  color: var(--products-primary);
  border-color: var(--products-accent);
}

.page-products .products-crosslinks .btn--accent:hover,
.page-products .products-crosslinks .btn--accent:focus-visible {
  background: rgba(212, 175, 55, 0.85);
  outline: 2px solid var(--products-primary);
  outline-offset: 2px;
}

.page-products .products-crosslinks .btn:not(.btn--dark):not(.btn--accent) {
  background: var(--products-surface);
  color: var(--products-primary);
  border-color: var(--products-border);
}

.page-products .products-crosslinks .btn:not(.btn--dark):not(.btn--accent):hover,
.page-products .products-crosslinks .btn:not(.btn--dark):not(.btn--accent):focus-visible {
  border-color: var(--products-accent);
  color: var(--products-primary);
  outline: 2px solid var(--products-accent);
  outline-offset: 2px;
}

/* ===== 窄屏移动端 ===== */
@media (max-width: 640px) {
  .page-products .products-hero__title {
    font-size: 1.35rem;
  }

  .page-products .products-hero {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .page-products .products-layout {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .page-products .products-section {
    padding: 1.8rem 0;
  }

  .page-products .section__title {
    font-size: 1.2rem;
  }

  .page-products .compat-grid {
    grid-template-columns: 1fr;
  }

  .page-products .tiers-table-wrap {
    margin-right: -0.5rem;
  }
}

/* ===== 桌面端 ===== */
@media (min-width: 768px) {
  .page-products .products-hero {
    padding: 3.5rem 2rem 2.5rem;
  }

  .page-products .products-hero__inner {
    padding: 2.5rem 0 2.8rem;
  }

  .page-products .products-hero__title {
    font-size: 2.25rem;
    line-height: 1.25;
  }

  .page-products .products-hero__lead {
    font-size: 1.05rem;
    max-width: 560px;
  }

  .page-products .products-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2.5rem;
    padding: 0 2rem 4rem;
  }

  .page-products .products-side {
    display: block;
    position: sticky;
    top: calc(var(--header-h, 4.5rem) + 1.5rem);
    align-self: start;
    font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  }

  .page-products .products-side__label {
    font-family: var(--font-mono, monospace);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    color: var(--products-accent);
    text-transform: uppercase;
    margin-bottom: 0.8rem;
  }

  .page-products .products-side__list {
    list-style: none;
    margin: 0;
    padding: 0;
    border-left: 1px solid var(--products-border);
  }

  .page-products .products-side__list li {
    margin-bottom: 0.1rem;
  }

  .page-products .products-side__list a {
    display: block;
    padding: 0.55rem 0.8rem;
    font-size: 0.85rem;
    color: var(--products-text-secondary);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: all var(--transition, 0.25s ease);
    font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  }

  .page-products .products-side__list a:hover,
  .page-products .products-side__list a:focus-visible {
    color: var(--products-primary);
    border-left-color: var(--products-accent);
    background: rgba(212, 175, 55, 0.05);
    outline: none;
  }

  .page-products .products-side__note {
    margin-top: 1.8rem;
    padding: 0.8rem;
    border: 1px dashed var(--products-border);
    border-radius: 6px;
    font-size: 0.75rem;
    line-height: 1.5;
    color: var(--products-text-secondary);
  }

  .page-products .products-main {
    max-width: 960px;
  }

  .page-products .products-section {
    padding: 3.5rem 0;
  }

  .page-products .section__title {
    font-size: 1.6rem;
  }

  .page-products .section__desc {
    font-size: 1rem;
  }

  .page-products .cycles-wrap {
    display: grid;
    grid-template-columns: 1fr 440px;
    gap: 2rem;
    align-items: center;
  }

  .page-products .tool-card {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
    padding: 2rem;
  }

  .page-products .compat-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .products-crosslinks {
    justify-content: flex-end;
  }
}

@media (min-width: 1200px) {
  .page-products .products-layout {
    grid-template-columns: 280px 1fr;
    gap: 3.5rem;
  }

  .page-products .products-section--wide {
    padding-right: 1rem;
  }
}