.page-products {
  --pp-muted: #6b635b;
  --pp-gap: clamp(2rem, 5vw, 3.5rem);
  background: var(--c-paper);
  color: var(--c-ink);
  font-family: var(--font-body);
  padding-bottom: clamp(3rem, 8vw, 5rem);
}

.page-products .breadcrumb {
  margin-top: clamp(1rem, 3vw, 1.75rem);
  margin-bottom: 0;
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  padding-block: clamp(1.25rem, 3.5vw, 2rem) clamp(2.25rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--c-paper-line);
}

.page-products .pp-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 4.6vw, 3.1rem);
  line-height: 1.16;
  letter-spacing: 0.02em;
  margin: 0.65rem 0 0;
  color: var(--c-ink);
}

.page-products .pp-hero__lede {
  max-width: 35em;
  margin: 1rem 0 0;
  font-size: clamp(0.95rem, 1.05vw, 1.0625rem);
  line-height: 1.85;
  color: var(--c-ink);
}

.page-products .pp-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.5rem;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 1rem 0 0;
  list-style: none;
  border-top: 1px solid var(--c-paper-line);
}

.page-products .pp-facts li {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.page-products .pp-facts li + li {
  padding-left: 1.25rem;
  border-left: 1px solid var(--c-paper-line);
}

.page-products .pp-facts__k {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--pp-muted);
}

.page-products .pp-facts__v {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--c-red);
}

.page-products .pp-hero__media {
  position: relative;
  margin: 0;
}

.page-products .pp-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translate(10px, 10px);
  border: 1px solid var(--c-gold);
  z-index: 0;
  pointer-events: none;
}

.page-products .pp-hero__media .media-frame {
  position: relative;
  z-index: 1;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--c-cream);
  border: 1px solid var(--c-paper-line);
}

.page-products .pp-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .pp-hero__media .media-frame__caption {
  position: relative;
  z-index: 2;
}

.page-products .media-frame__caption {
  display: block;
  margin-top: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  color: var(--pp-muted);
}

/* ---------- 左侧序号导轨 + 右侧长卷 ---------- */
.page-products .pp-body {
  display: grid;
  gap: 0;
  padding-top: clamp(1.5rem, 3vw, 2rem);
}

.page-products .pp-rail {
  margin-bottom: 1.5rem;
}

.page-products .pp-rail__hint {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.6;
  letter-spacing: 0.16em;
  color: var(--pp-muted);
}

.page-products .pp-rail__hint span {
  color: var(--c-gold);
  font-size: 0.9rem;
}

.page-products .pp-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.35rem 0.55rem;
  border: 1px solid var(--c-paper-line);
  border-radius: 2px;
  text-decoration: none;
  color: var(--c-ink);
  font-size: 0.8125rem;
  line-height: 1.2;
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease);
}

.page-products .pp-rail__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--c-gold);
}

.page-products .pp-rail__link:hover {
  border-color: var(--c-gold);
  color: var(--c-red);
}

.page-products .pp-rail__link[data-active],
.page-products .pp-rail__link[aria-current="true"] {
  border-color: var(--c-red);
  color: var(--c-red);
}

/* ---------- 章节 ---------- */
.page-products .pp-chapter {
  padding-block: clamp(2rem, 4.5vw, 3.25rem);
  border-bottom: 1px solid var(--c-paper-line);
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-products .pp-chapter:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .pp-chapter__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(0.75rem, 2vw, 1.25rem);
  align-items: start;
  margin-bottom: clamp(1.25rem, 3vw, 1.9rem);
}

.page-products .pp-chapter__num {
  font-family: var(--font-mono);
  font-size: clamp(1.55rem, 4vw, 2.4rem);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: 0.04em;
  color: var(--c-gold);
}

.page-products .pp-chapter__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.22rem, 2.4vw, 1.72rem);
  line-height: 1.3;
  letter-spacing: 0.02em;
  margin: 0;
  color: var(--c-ink);
}

.page-products .pp-chapter__note {
  margin: 0.55rem 0 0;
  max-width: 42em;
  font-size: 0.875rem;
  line-height: 1.85;
  color: var(--pp-muted);
}

/* ---------- 分栏 ---------- */
.page-products .pp-split {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}

/* ---------- 栏目分类 ---------- */
.page-products .pp-cats {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-cats__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.4rem 0.85rem;
  align-items: baseline;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--c-paper-line);
}

.page-products .pp-cats__item:first-child {
  border-top: 1px solid var(--c-paper-line);
}

.page-products .pp-cats__code {
  justify-self: end;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--c-gold);
}

.page-products .pp-cats__desc {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 0.855rem;
  line-height: 1.8;
  color: var(--pp-muted);
}

/* ---------- 图 ---------- */
.page-products .pp-figure {
  margin: 0;
}

.page-products .pp-figure .media-frame {
  overflow: hidden;
  border: 1px solid var(--c-paper-line);
  background: var(--c-cream);
}

.page-products .pp-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .pp-figure--square .media-frame {
  aspect-ratio: 1 / 1;
}

.page-products .pp-figure--tall .media-frame {
  aspect-ratio: 3 / 4;
}

.page-products .pp-figure--wide .media-frame {
  aspect-ratio: 16 / 9;
  margin-bottom: clamp(1.25rem, 3vw, 1.9rem);
}

.page-products .pp-figure--wide + .pp-ledger {
  margin-top: 0;
}

/* ---------- 暖白色块 ---------- */
.page-products .pp-slab {
  background: var(--c-cream);
  border: 1px solid var(--c-paper-line);
  border-radius: 2px 18px 2px 18px;
  padding: clamp(0.85rem, 2.5vw, 1.5rem);
  overflow: hidden;
}

/* ---------- 表格 ---------- */
.page-products .pp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.page-products .pp-table thead th {
  background: var(--c-red);
  color: var(--c-cream);
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-align: left;
  padding: 0.6rem 0.75rem;
}

.page-products .pp-table thead th.pp-num {
  text-align: right;
}

.page-products .pp-table tbody td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--c-paper-line);
  vertical-align: top;
  line-height: 1.6;
}

.page-products .pp-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .pp-table tbody tr:nth-child(even) {
  background: rgba(233, 225, 210, 0.3);
}

.page-products .pp-table tbody td:first-child {
  font-family: var(--font-mono);
  font-size: 0.79rem;
  letter-spacing: 0.06em;
  color: var(--pp-muted);
  white-space: nowrap;
}

.page-products .pp-table .pp-num {
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  text-align: right;
  white-space: nowrap;
  color: var(--c-red);
}

/* ---------- 账册式条目 ---------- */
.page-products .pp-ledger {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--c-paper-line);
}

.page-products .pp-ledger__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  column-gap: 0.9rem;
  row-gap: 0.25rem;
  align-items: baseline;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--c-paper-line);
}

.page-products .pp-ledger__no {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--c-gold);
}

.page-products .pp-ledger__name {
  font-size: 0.97rem;
  line-height: 1.5;
  color: var(--c-ink);
}

.page-products .pp-ledger__amt {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--c-red);
  white-space: nowrap;
}

.page-products .pp-ledger__meta {
  grid-column: 2 / 4;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--pp-muted);
}

/* ---------- 组合示例单据 ---------- */
.page-products .pp-bill {
  background: var(--c-cream);
  border: 1px solid var(--c-paper-line);
  border-radius: 2px 18px 2px 18px;
  padding: clamp(1rem, 3vw, 1.75rem);
}

.page-products .pp-bill__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.55rem 0;
  border-bottom: 1px dashed var(--c-paper-line);
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-products .pp-bill__row:last-of-type {
  border-bottom: 0;
}

.page-products .pp-bill__amt {
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  color: var(--c-ink);
  white-space: nowrap;
}

.page-products .pp-bill__total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 2px solid var(--c-red);
  font-size: 0.95rem;
}

.page-products .pp-bill__sum {
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 3.4vw, 1.65rem);
  letter-spacing: 0.04em;
  color: var(--c-red);
  white-space: nowrap;
}

.page-products .pp-afternote {
  max-width: 40em;
  margin: clamp(1rem, 2.5vw, 1.4rem) 0 0;
  font-size: 0.875rem;
  line-height: 1.85;
  color: var(--pp-muted);
}

.page-products .pp-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
}

/* ---------- 调整与联系 ---------- */
.page-products .pp-prose {
  max-width: 38em;
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--c-ink);
}

.page-products .pp-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin: clamp(1.1rem, 3vw, 1.6rem) 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-links a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--c-red);
  text-decoration: none;
  border-bottom: 1px solid var(--c-gold-light);
  padding-bottom: 2px;
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease);
}

.page-products .pp-links a::before {
  content: "§";
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--c-gold);
}

.page-products .pp-links a:hover {
  color: var(--c-red-deep);
  border-bottom-color: var(--c-red);
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-products .pp-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
  }

  .page-products .pp-split--cats {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: start;
  }

  .page-products .pp-split--7-5 {
    grid-template-columns: minmax(0, 1fr) 200px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-products .pp-body {
    grid-template-columns: 10rem minmax(0, 1fr);
    gap: clamp(1.75rem, 3vw, 3.25rem);
    align-items: start;
  }

  .page-products .pp-rail {
    position: sticky;
    top: calc(var(--header-h) + 1.25rem);
    margin-bottom: 0;
  }

  .page-products .pp-rail__list {
    flex-direction: column;
    gap: 0;
  }

  .page-products .pp-rail__link {
    display: flex;
    width: 100%;
    border: 0;
    border-left: 2px solid var(--c-paper-line);
    border-radius: 0;
    padding: 0.45rem 0 0.45rem 0.75rem;
  }

  .page-products .pp-rail__link:hover,
  .page-products .pp-rail__link[data-active],
  .page-products .pp-rail__link[aria-current="true"] {
    border-left-color: var(--c-red);
    color: var(--c-red);
  }
}

/* ---------- 窄屏：表格折叠为条目 ---------- */
@media (max-width: 900px) {
  .page-products .pp-table {
    font-size: 0.875rem;
  }

  .page-products .pp-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .page-products .pp-table,
  .page-products .pp-table tbody,
  .page-products .pp-table tr,
  .page-products .pp-table td {
    display: block;
    width: 100%;
  }

  .page-products .pp-table tbody tr {
    border: 1px solid var(--c-paper-line);
    border-radius: 2px 12px 2px 12px;
    padding: 0.6rem 0.85rem;
    margin-bottom: 0.6rem;
    background: var(--c-cream);
  }

  .page-products .pp-table tbody tr:nth-child(even) {
    background: var(--c-cream);
  }

  .page-products .pp-table tbody td {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    padding: 0.3rem 0;
    border-bottom: 0;
    text-align: left;
  }

  .page-products .pp-table tbody td::before {
    content: attr(data-label);
    flex: 0 0 auto;
    font-family: var(--font-body);
    font-size: 0.72rem;
    letter-spacing: 0.09em;
    color: var(--pp-muted);
  }

  .page-products .pp-table .pp-num {
    text-align: right;
  }

  .page-products .pp-slab {
    padding: 0.75rem;
  }
}

@media (max-width: 560px) {
  .page-products .pp-hero__media::after {
    transform: translate(6px, 6px);
  }

  .page-products .pp-ledger__row {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .page-products .pp-ledger__amt {
    grid-column: 1 / -1;
    justify-self: start;
    font-size: 1.1rem;
  }

  .page-products .pp-ledger__meta {
    grid-column: 1 / -1;
  }

  .page-products .pp-bill__row,
  .page-products .pp-bill__total {
    font-size: 0.855rem;
  }

  .page-products .pp-actions .btn {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-rail__link,
  .page-products .pp-links a {
    transition: none;
  }
}
<<<END>>>

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