.page-products {
  --p-line: 2px solid var(--ink);
  --p-space: clamp(44px, 7vw, 92px);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  overflow-x: hidden;
}

.page-products .p-sec {
  position: relative;
  padding: var(--p-space) 0;
}

.page-products .p-sec--dark {
  background: var(--blue);
  color: var(--paper);
  border-top: var(--p-line);
  border-bottom: var(--p-line);
}

.page-products .p-sec--sand {
  background: var(--sand);
  border-top: var(--p-line);
}

/* ---------- 首屏 ---------- */

.page-products .p-lede {
  padding: clamp(26px, 5vw, 54px) 0 clamp(30px, 5vw, 62px);
  border-bottom: var(--p-line);
}

.page-products .p-lede__title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(30px, 5.6vw, 56px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 16px 0 20px;
  max-width: 15em;
}

.page-products .p-lede__lead {
  font-size: clamp(16px, 1.9vw, 18px);
  line-height: 1.78;
  max-width: 36em;
  margin: 0 0 26px;
}

.page-products .p-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ink);
  border: var(--p-line);
}

.page-products .p-facts li {
  background: var(--sand);
  padding: 13px 15px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-products .p-facts__k {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--shale);
}

.page-products .p-facts__v {
  font-family: var(--mono);
  font-size: clamp(17px, 2.4vw, 21px);
  font-weight: 600;
  color: var(--blue);
}

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

/* ---------- 粘性版本轨道 ---------- */

.page-products .p-rail {
  position: sticky;
  top: var(--bar-h);
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  padding: 9px 16px;
  background: var(--deep);
  border-bottom: 2px solid var(--ink);
  scrollbar-width: none;
}

.page-products .p-rail::-webkit-scrollbar {
  display: none;
}

.page-products .p-rail__tag {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--paper);
  background: var(--cinnabar);
  padding: 5px 9px;
}

.page-products .p-rail a {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--sand);
  text-decoration: none;
  padding: 5px 9px;
  border: 1px solid rgba(217, 201, 174, 0.32);
  transition: background 140ms var(--ease), color 140ms var(--ease);
}

.page-products .p-rail a:hover,
.page-products .p-rail a:focus-visible {
  color: var(--deep);
  background: var(--gold);
  border-color: var(--gold);
}

@media (min-width: 1024px) {
  .page-products .p-rail {
    top: 0;
  }
}

/* ---------- 章节标题组 ---------- */

.page-products .p-head {
  margin: 0 0 clamp(22px, 4vw, 38px);
  max-width: 44em;
}

.page-products .p-sec__title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(25px, 4vw, 40px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  margin: 12px 0 14px;
}

.page-products .p-sec__lead {
  font-size: 16px;
  line-height: 1.78;
  color: var(--shale);
  margin: 0;
  max-width: 40em;
}

.page-products .p-sec--dark .p-sec__title {
  color: var(--paper);
}

.page-products .p-sec--dark .p-sec__lead {
  color: rgba(245, 241, 232, 0.82);
}

.page-products .p-sec--dark .eyebrow {
  color: var(--sand);
}

/* ---------- 总览卡片 ---------- */

.page-products .p-overview {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-products .p-card {
  background: var(--paper);
  border: var(--p-line);
  box-shadow: var(--push);
  padding: clamp(20px, 3vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .p-card--lead {
  gap: 22px;
}

.page-products .p-card__body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-products .p-card__title {
  font-family: var(--serif);
  font-size: clamp(21px, 3vw, 28px);
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
}

.page-products .p-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--shale);
}

.page-products .p-phone {
  flex: 0 0 auto;
  width: 158px;
  margin: 0 auto;
  padding: 10px 8px 14px;
  background: var(--blue);
  border: var(--p-line);
  border-radius: 20px;
  box-shadow: inset 0 0 0 2px rgba(245, 241, 232, 0.22);
}

.page-products .p-phone img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 12px;
  object-fit: cover;
  filter: grayscale(0.12) contrast(1.03);
}

.page-products .p-overview__side {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-products .p-overview__side .p-card .btn {
  margin-top: auto;
  align-self: flex-start;
}

@media (min-width: 640px) {
  .page-products .p-card--lead {
    flex-direction: row;
    align-items: center;
  }

  .page-products .p-card--lead .p-card__body {
    flex: 1 1 auto;
  }

  .page-products .p-phone {
    width: 172px;
    margin: 0;
  }
}

@media (min-width: 900px) {
  .page-products .p-overview {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 1fr);
    align-items: stretch;
  }
}

/* ---------- 结构方块 ---------- */

.page-products .p-blocks {
  display: grid;
  gap: clamp(14px, 2.4vw, 20px);
}

.page-products .p-block {
  background: var(--sand);
  border: var(--p-line);
  padding: 20px 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-products .p-block__num {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.1em;
}

.page-products .p-block__title {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  margin: 0;
}

.page-products .p-block__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--shale);
}

@media (min-width: 700px) {
  .page-products .p-blocks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .p-block--wide {
    grid-column: span 2;
  }
}

@media (min-width: 1024px) {
  .page-products .p-blocks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 版本与适配 ---------- */

.page-products .p-version {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-products .p-version__list {
  display: grid;
  gap: 20px;
}

.page-products .p-version__item {
  border-left: 3px solid var(--gold);
  padding-left: 16px;
}

.page-products .p-version__item h3 {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--paper);
}

.page-products .p-version__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: rgba(245, 241, 232, 0.82);
}

.page-products .p-version__fig {
  margin: 0;
  border: 2px solid var(--sand);
  background: var(--deep);
}

.page-products .p-version__fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: grayscale(0.2);
}

.page-products .p-version__fig figcaption {
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--sand);
  padding: 10px 12px;
  border-top: 1px solid rgba(217, 201, 174, 0.35);
}

@media (min-width: 880px) {
  .page-products .p-version {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }
}

/* ---------- 年度栏目包 ---------- */

.page-products .p-pkg__fig {
  margin: 0 0 clamp(22px, 4vw, 34px);
  border: var(--p-line);
  box-shadow: var(--push);
  background: var(--paper);
}

.page-products .p-pkg__fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  max-height: 340px;
  object-fit: cover;
  filter: saturate(0.78);
}

.page-products .p-pkg__fig figcaption {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--shale);
  padding: 10px 14px;
  border-top: var(--p-line);
  background: var(--sand);
}

.page-products .p-pkg {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--p-line);
}

.page-products .pkg {
  display: grid;
  gap: 10px;
  padding: 18px 0 20px;
  border-bottom: 1px solid rgba(23, 23, 20, 0.28);
}

.page-products .pkg__year {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  letter-spacing: 0.01em;
}

.page-products .pkg__info {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-products .pkg__scene {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

.page-products .pkg__meta {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
}

.page-products .pkg__meta span {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--shale);
}

.page-products .pkg__hash summary {
  cursor: pointer;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--verdigris);
  padding: 3px 0;
  list-style: none;
}

.page-products .pkg__hash summary::-webkit-details-marker {
  display: none;
}

.page-products .pkg__hash summary::before {
  content: "+ ";
  color: var(--cinnabar);
}

.page-products .pkg__hash[open] summary::before {
  content: "− ";
}

.page-products .pkg__hash code {
  display: block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.6;
  color: var(--shale);
  word-break: break-all;
  background: var(--sand);
  padding: 8px 10px;
  border-left: 3px solid var(--verdigris);
}

@media (min-width: 760px) {
  .page-products .pkg {
    grid-template-columns: 92px minmax(0, 1fr) 210px;
    align-items: start;
    gap: 18px;
    padding: 20px 0;
  }

  .page-products .pkg__hash {
    justify-self: end;
    width: 100%;
  }
}

/* ---------- 下载与安装 ---------- */

.page-products .p-steps-layout {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

.page-products .p-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: pstep;
  display: grid;
  gap: 14px;
}

.page-products .p-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  border: var(--p-line);
  background: var(--paper);
  padding: 16px 16px 18px;
}

.page-products .p-step__num {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--paper);
  background: var(--blue);
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
}

.page-products .p-step__title {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 5px;
}

.page-products .p-step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--shale);
}

.page-products .p-steps__fig {
  margin: 0;
  border: var(--p-line);
  box-shadow: var(--push);
  align-self: start;
}

.page-products .p-steps__fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: grayscale(0.25);
}

.page-products .p-steps__fig figcaption {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--shale);
  padding: 10px 12px;
  border-top: var(--p-line);
  background: var(--sand);
}

.page-products .p-note {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--shale);
  border-left: 3px solid var(--gold);
  padding-left: 14px;
  max-width: 44em;
}

.page-products .p-note a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .p-note a:hover,
.page-products .p-note a:focus-visible {
  color: var(--cinnabar);
}

.page-products .p-note--dark {
  color: var(--ink);
  border-left-color: var(--cinnabar);
}

@media (min-width: 880px) {
  .page-products .p-steps-layout {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

/* ---------- 支持与反馈 ---------- */

.page-products .p-support {
  display: grid;
  gap: clamp(20px, 3.4vw, 32px);
}

.page-products .p-support__mail {
  border: var(--p-line);
  background: var(--paper);
  box-shadow: var(--push);
  padding: clamp(18px, 3vw, 26px);
}

.page-products .p-support__label {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--shale);
}

.page-products .p-support__addr {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: clamp(15px, 2.4vw, 20px);
  font-weight: 600;
  color: var(--blue);
  word-break: break-all;
}

.page-products .p-support__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--shale);
}

.page-products .p-support__rows {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--p-line);
}

.page-products .p-support__rows li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  align-items: baseline;
  padding: 14px 2px;
  border-bottom: 1px solid rgba(23, 23, 20, 0.3);
}

.page-products .p-support__rows span {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--shale);
  min-width: 92px;
}

.page-products .p-support__rows strong {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

@media (min-width: 840px) {
  .page-products .p-support {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 底部岩层带 ---------- */

.page-products .p-band {
  margin: 24px 0 0;
  border-top: var(--p-line);
  overflow: hidden;
  height: clamp(120px, 22vw, 200px);
  background: var(--blue);
}

.page-products .p-band img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.9);
}

@media (prefers-reduced-motion: reduce) {
  .page-products .p-rail a {
    transition: none;
  }
}