.page-products {
  --pc-line: rgba(138, 110, 47, 0.32);
  --pc-line-soft: rgba(138, 110, 47, 0.16);
  background: linear-gradient(180deg, var(--warm-a) 0%, #e7e0d5 55%, var(--warm-b) 100%);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-products .pc-hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding: calc(var(--topbar-h) + 56px) 0 clamp(44px, 6vw, 84px);
  overflow: hidden;
}

.page-products .pc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(200, 162, 74, 0.09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(200, 162, 74, 0.09) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-products .pc-hero__grid {
  position: relative;
  display: grid;
  gap: 32px;
}

.page-products .pc-hero__crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: rgba(247, 244, 238, 0.55);
}

.page-products .pc-hero__crumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--gold-line);
}

.page-products .pc-hero__crumb a {
  color: inherit;
  text-decoration: none;
}

.page-products .pc-hero__crumb a:hover {
  color: var(--gold-hi);
}

.page-products .pc-hero__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--gold);
}

.page-products .pc-hero__title {
  margin: 14px 0 20px;
  font-size: clamp(52px, 13vw, 124px);
  line-height: 1;
  letter-spacing: 0.08em;
  font-weight: 900;
  color: var(--paper);
}

.page-products .pc-hero__lead {
  max-width: 40ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(247, 244, 238, 0.82);
}

.page-products .pc-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 30px 0 0;
  padding: 1px;
  background: rgba(138, 110, 47, 0.45);
  border: 1px solid rgba(138, 110, 47, 0.45);
}

.page-products .pc-hero__facts > div {
  background: var(--ink);
  padding: 14px 16px;
}

.page-products .pc-hero__facts dt {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.page-products .pc-hero__facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 19px;
  color: var(--gold-hi);
}

.page-products .pc-hero__figure {
  margin: 0;
}

.page-products .pc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(138, 110, 47, 0.55);
}

.page-products .pc-hero__figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

@media (min-width: 920px) {
  .page-products .pc-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: end;
  }

  .page-products .pc-hero__lead {
    font-size: 17px;
  }
}

@media (min-width: 640px) {
  .page-products .pc-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 章节骨架 ---------- */
.page-products .pc-sec {
  padding: clamp(48px, 7vw, 96px) 0;
  border-top: 1px solid var(--pc-line);
}

.page-products .pc-sec__head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-products .pc-sec__no {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.page-products .pc-sec__title {
  margin: 0;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.2;
  letter-spacing: 0.04em;
}

.page-products .pc-sec__note {
  margin: 0;
  padding-left: 12px;
  border-left: 1px solid var(--gold-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

@media (min-width: 900px) {
  .page-products .pc-sec__head {
    grid-template-columns: 110px minmax(0, 1fr) 300px;
    align-items: start;
    gap: 24px;
  }
}

/* ---------- 目录刻度总览 ---------- */
.page-products .pc-scale {
  display: grid;
  border-top: 1px solid var(--pc-line);
}

.page-products .pc-scale__row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--pc-line);
  color: inherit;
  text-decoration: none;
  transition: background-color 0.3s var(--ease);
}

.page-products .pc-scale__row:hover,
.page-products .pc-scale__row:focus-visible {
  background: rgba(247, 244, 238, 0.7);
}

.page-products .pc-scale__mark {
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--gold);
  padding-top: 4px;
}

.page-products .pc-scale__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-products .pc-scale__name {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 22px);
  letter-spacing: 0.04em;
}

.page-products .pc-scale__count {
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--ink);
}

.page-products .pc-scale__count i {
  font-style: normal;
  font-size: 12px;
  color: var(--slate);
  margin-left: 2px;
}

.page-products .pc-scale__bar {
  height: 6px;
  margin: 12px 0;
  background: rgba(11, 11, 13, 0.08);
  overflow: hidden;
}

.page-products .pc-scale__fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--gold-line), var(--gold));
}

.page-products .pc-scale__fill--a { width: 32.4%; }
.page-products .pc-scale__fill--b { width: 26.5%; }
.page-products .pc-scale__fill--c { width: 20.6%; }
.page-products .pc-scale__fill--d { width: 20.5%; }

.page-products .pc-scale__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: #2a2b2f;
  max-width: 46ch;
}

.page-products .pc-scale__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 0;
}

.page-products .pc-scale__tags span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gold-line);
  border: 1px solid var(--pc-line);
  padding: 3px 8px;
}

/* ---------- 分类章节 ---------- */
.page-products .pc-cat__intro {
  display: grid;
  gap: 20px;
  margin-bottom: 28px;
}

.page-products .pc-cat__intro .prose,
.page-products .pc-cat__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  max-width: 38em;
}

.page-products .pc-cat__lead {
  margin-bottom: 28px;
}

.page-products .pc-cat__deliver {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--pc-line);
  border: 1px solid var(--pc-line);
}

.page-products .pc-cat__deliver li {
  background: var(--paper);
  padding: 12px 14px;
  font-size: 14px;
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.page-products .pc-cat__deliver li span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
}

@media (min-width: 860px) {
  .page-products .pc-cat__intro {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
    gap: 40px;
  }
}

/* 九大类栏目格 */
.page-products .pc-columns {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 32px;
  padding: 1px;
  background: var(--pc-line);
  border: 1px solid var(--pc-line);
}

.page-products .pc-columns li {
  background: var(--paper);
  padding: 14px 14px 16px;
  display: grid;
  gap: 4px;
}

.page-products .pc-columns__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-products .pc-columns strong {
  font-size: 15px;
  letter-spacing: 0.04em;
}

.page-products .pc-columns em {
  font-style: normal;
  font-size: 12px;
  line-height: 1.5;
  color: var(--slate);
}

@media (min-width: 760px) {
  .page-products .pc-columns {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 条目折叠卡 ---------- */
.page-products .pc-items {
  border-top: 1px solid var(--pc-line);
}

.page-products .pc-item {
  border-bottom: 1px solid var(--pc-line);
}

.page-products .pc-item > summary {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) auto 14px;
  gap: 10px;
  align-items: center;
  padding: 16px 2px;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.25s var(--ease);
}

.page-products .pc-item > summary::-webkit-details-marker {
  display: none;
}

.page-products .pc-item > summary:hover {
  background: rgba(247, 244, 238, 0.65);
}

.page-products .pc-item__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-line);
}

.page-products .pc-item__name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.page-products .pc-item__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate);
  white-space: nowrap;
}

.page-products .pc-item__plus {
  position: relative;
  width: 12px;
  height: 12px;
  transition: transform 0.28s var(--ease);
}

.page-products .pc-item__plus::before,
.page-products .pc-item__plus::after {
  content: "";
  position: absolute;
  background: var(--gold-line);
}

.page-products .pc-item__plus::before {
  left: 0;
  top: 5px;
  width: 12px;
  height: 1px;
}

.page-products .pc-item__plus::after {
  left: 5px;
  top: 0;
  width: 1px;
  height: 12px;
}

.page-products .pc-item[open] .pc-item__plus {
  transform: rotate(45deg);
}

.page-products .pc-item__body {
  padding: 0 2px 22px;
}

.page-products .pc-item__body > p {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: #2a2b2f;
}

.page-products .pc-item__spec {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--pc-line);
}

.page-products .pc-item__spec dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 4px;
}

.page-products .pc-item__spec dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--slate);
}

@media (min-width: 760px) {
  .page-products .pc-item__spec {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

/* ---------- 发布流水线 ---------- */
.page-products .pc-pipe {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: 0 0 32px;
  padding: 1px;
  background: var(--pc-line);
  border: 1px solid var(--pc-line);
}

.page-products .pc-pipe li {
  background: var(--ink-2);
  color: var(--paper);
  padding: 20px 18px;
  display: grid;
  gap: 8px;
}

.page-products .pc-pipe__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-products .pc-pipe strong {
  font-size: 17px;
  letter-spacing: 0.04em;
}

.page-products .pc-pipe__days {
  font-family: var(--font-mono);
  font-size: 28px;
  line-height: 1;
  color: var(--gold-hi);
}

.page-products .pc-pipe__days i {
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--slate);
  margin-left: 4px;
}

.page-products .pc-pipe em {
  font-style: normal;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(247, 244, 238, 0.7);
}

@media (min-width: 760px) {
  .page-products .pc-pipe {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 版本对照 ---------- */
.page-products .pc-split {
  display: grid;
  gap: 28px;
  margin-bottom: 32px;
}

.page-products .pc-split__figure {
  margin: 0;
}

.page-products .pc-split__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--pc-line);
}

.page-products .pc-split__figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.page-products .pc-split__body .prose {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
}

.page-products .pc-diff {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .pc-diff li {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: #2a2b2f;
}

.page-products .pc-diff__dot {
  width: 12px;
  height: 12px;
  margin-top: 6px;
}

.page-products .pc-diff__dot--new { background: var(--vermilion); }
.page-products .pc-diff__dot--adj { background: var(--gold); }
.page-products .pc-diff__dot--off { background: var(--slate); }

@media (min-width: 900px) {
  .page-products .pc-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }
}

/* ---------- 访客注册 ---------- */
.page-products .pc-register {
  display: grid;
  gap: 20px;
}

.page-products .pc-register__figure {
  margin: 0;
}

.page-products .pc-register__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--pc-line);
}

.page-products .pc-register__figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.page-products .pc-mat {
  background: var(--paper);
  border: 1px solid var(--pc-line);
  border-left: 3px solid var(--gold);
  padding: 22px 20px;
}

.page-products .pc-mat__title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 16px;
  font-size: 19px;
  letter-spacing: 0.06em;
}

.page-products .pc-mat__count {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--vermilion);
  letter-spacing: 0.08em;
}

.page-products .pc-mat__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .pc-mat__list li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.6;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--pc-line-soft);
}

.page-products .pc-mat__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .pc-mat__list span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold-line);
}

.page-products .pc-mat__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate);
}

@media (min-width: 880px) {
  .page-products .pc-register {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 24px;
  }

  .page-products .pc-register__figure {
    grid-column: 1 / -1;
  }
}

/* ---------- 五步流程 ---------- */
.page-products .pc-tree {
  position: relative;
}

.page-products .pc-tree__lines {
  display: none;
  width: 100%;
  height: 40px;
}

.page-products .pc-tree__lines line {
  stroke: var(--gold-line);
  stroke-width: 1;
  stroke-dasharray: 4 7;
}

.page-products .pc-tree__nodes {
  list-style: none;
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
}

.page-products .pc-tree__node {
  background: var(--paper);
  border: 1px solid var(--pc-line);
  padding: 18px 16px;
  display: grid;
  gap: 8px;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-products .pc-tree__node:hover {
  border-color: var(--gold);
  transform: translateY(-3px);
}

.page-products .pc-tree__no {
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--gold);
}

.page-products .pc-tree__node strong {
  font-size: 16px;
  letter-spacing: 0.06em;
}

.page-products .pc-tree__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--vermilion);
}

.page-products .pc-tree__node p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .pc-tree__figure {
  margin: 28px 0 0;
}

.page-products .pc-tree__figure img {
  display: block;
  width: 100%;
  max-width: 760px;
  height: auto;
  border: 1px solid var(--pc-line);
}

.page-products .pc-tree__figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

@media (min-width: 920px) {
  .page-products .pc-tree__lines {
    display: block;
  }

  .page-products .pc-tree__nodes {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 10px;
    margin-top: -22px;
  }

  .page-products .pc-tree__node:nth-child(even) {
    transform: translateY(16px);
  }

  .page-products .pc-tree__node:nth-child(even):hover {
    transform: translateY(12px);
  }
}

/* ---------- 组合方案 ---------- */
.page-products .pc-combos {
  display: grid;
  gap: 20px;
}

.page-products .pc-combo {
  background: var(--paper);
  border: 1px solid var(--pc-line);
  border-top: 3px solid var(--ink);
  padding: 24px 20px;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-products .pc-combo:nth-child(2) {
  border-top-color: var(--gold);
}

.page-products .pc-combo:nth-child(3) {
  border-top-color: var(--vermilion);
}

.page-products .pc-combo__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--slate);
}

.page-products .pc-combo__title {
  margin: 0;
  font-size: 21px;
  letter-spacing: 0.06em;
}

.page-products .pc-combo__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: #2a2b2f;
}

.page-products .pc-combo__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--pc-line-soft);
  border: 1px solid var(--pc-line-soft);
}

.page-products .pc-combo__stats > div {
  background: var(--paper);
  padding: 10px 12px;
}

.page-products .pc-combo__stats dt {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate);
  margin-bottom: 4px;
}

.page-products .pc-combo__stats dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--ink);
}

.page-products .pc-combo__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .pc-combo__list li {
  font-size: 14px;
  padding-left: 14px;
  position: relative;
  color: #2a2b2f;
}

.page-products .pc-combo__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 1px;
  background: var(--gold);
}

.page-products .pc-combo .btn {
  justify-self: start;
}

.page-products .pc-bundles__figure {
  margin: 32px 0 0;
}

.page-products .pc-bundles__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--pc-line);
}

.page-products .pc-bundles__figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

@media (min-width: 860px) {
  .page-products .pc-combos {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    padding-bottom: 48px;
  }

  .page-products .pc-combo:nth-child(2) {
    transform: translateY(24px);
  }

  .page-products .pc-combo:nth-child(3) {
    transform: translateY(48px);
  }
}

/* ---------- 历史版本 ---------- */
.page-products .pc-history__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 20px;
  border-left: 1px solid var(--gold-line);
  display: grid;
  gap: 22px;
}

.page-products .pc-history__list > li {
  position: relative;
  display: grid;
  gap: 6px;
}

.page-products .pc-history__list > li::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--gold);
}

.page-products .pc-history__ver {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--vermilion);
}

.page-products .pc-history__body h3 {
  margin: 0 0 6px;
  font-size: 17px;
  letter-spacing: 0.05em;
}

.page-products .pc-history__body p {
  margin: 0;
  max-width: 44em;
  font-size: 14px;
  line-height: 1.75;
  color: #2a2b2f;
}

.page-products .pc-history__next {
  margin: 32px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--pc-line);
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

.page-products .pc-history__next a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  margin: 0 2px;
}

.page-products .pc-history__next a:hover {
  color: var(--vermilion);
  border-bottom-color: var(--vermilion);
}

@media (min-width: 760px) {
  .page-products .pc-history__list {
    padding-left: 28px;
    gap: 26px;
  }

  .page-products .pc-history__list > li {
    grid-template-columns: 90px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
  }

  .page-products .pc-history__list > li::before {
    left: -33px;
  }
}