.page-products {
  --pr-gold-deep: #8A6F14;
  --pr-slate: #465A60;
  --pr-paper-ink: #16303B;
  --pr-line-soft: rgba(110, 139, 133, .34);
  --pr-body-on-dark: #A9BDB7;
  --pr-card-bg: rgba(20, 49, 64, .72);
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 clamp(20px, 4vw, 34px);
  padding: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-7);
  letter-spacing: .04em;
}
.page-products .breadcrumb-list > li {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--c-mute);
}
.page-products .breadcrumb-list > li + li::before {
  content: "/";
  color: var(--c-tide);
}
.page-products .breadcrumb-list .breadcrumb-link {
  color: var(--c-tide);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-products .breadcrumb-list .breadcrumb-link:hover {
  color: var(--c-signal);
  border-bottom-color: var(--c-signal);
}
.page-products .breadcrumb-list .breadcrumb-link[aria-current="page"] {
  color: var(--c-paper);
  border-bottom-color: transparent;
}

/* ---------- 首屏 ---------- */
.page-products .pr-open {
  padding-top: clamp(28px, 5vw, 56px);
}
.page-products .pr-hero {
  display: grid;
  gap: clamp(28px, 5vw, 44px);
  align-items: end;
}
.page-products .pr-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(38px, 8vw, 88px);
  line-height: .98;
  letter-spacing: -.03em;
}
.page-products .pr-hero__lead .lede {
  margin-top: 18px;
  max-width: 46ch;
}
.page-products .pr-hero__meta {
  border-left: 2px solid var(--signal-line);
  padding-left: clamp(16px, 3vw, 28px);
}
.page-products .pr-meta__label {
  margin: 0;
  font-size: var(--fs-7);
  color: var(--c-mute);
  letter-spacing: .12em;
}
.page-products .pr-meta__version {
  margin: 6px 0 18px;
  font-size: var(--fs-2);
  color: var(--c-gold);
  letter-spacing: .04em;
}
.page-products .pr-meta__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 20px;
}
.page-products .pr-meta__list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}
.page-products .pr-meta__list span {
  font-size: var(--fs-7);
  color: var(--c-mute);
}
.page-products .pr-meta__list b {
  font-size: var(--fs-4);
  font-weight: 700;
  color: var(--c-paper);
}

/* ---------- 区块标题 ---------- */
.page-products .pr-head {
  max-width: 62ch;
  margin-bottom: clamp(26px, 4vw, 44px);
}
.page-products .pr-head .section-title {
  margin: 10px 0 0;
}
.page-products .pr-head__desc {
  margin-top: 14px;
  max-width: 58ch;
  font-size: var(--fs-5);
  line-height: 1.75;
  color: var(--c-mute);
}

/* ---------- 01 服务总览 ---------- */
.page-products .pr-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 2vw, 20px);
  grid-template-columns: repeat(auto-fit, minmax(248px, 1fr));
}
.page-products .pr-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 3vw, 28px);
  padding-left: clamp(24px, 3.4vw, 32px);
  background: var(--pr-card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color .25s var(--ease), background-color .25s var(--ease);
}
.page-products .pr-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--c-signal);
}
.page-products .pr-card--d::before { background: var(--c-indigo); }
.page-products .pr-card--c::before { background: var(--c-tide); }
.page-products .pr-card--n::before { background: var(--c-gold); }
.page-products .pr-card--k::before { background: var(--c-wine); }
.page-products .pr-card--q::before { background: var(--c-signal-hi); }
.page-products .pr-card:hover {
  border-color: var(--signal-line);
  background: rgba(20, 49, 64, .92);
}
.page-products .pr-card__num {
  margin: 0;
  font-size: var(--fs-3);
  color: var(--c-gold);
  letter-spacing: .1em;
}
.page-products .pr-card__title {
  margin: 0;
  font-size: var(--fs-3);
  letter-spacing: -.01em;
  color: var(--c-paper);
}
.page-products .pr-card__desc {
  margin: 0;
  font-size: var(--fs-6);
  line-height: 1.7;
  color: var(--c-mute);
}
.page-products .pr-card__stats {
  list-style: none;
  margin: auto 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
}
.page-products .pr-card__stats li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.page-products .pr-card__stats span {
  font-size: var(--fs-7);
  color: var(--c-mute);
}
.page-products .pr-card__stats b {
  font-size: var(--fs-4);
  font-weight: 800;
  color: var(--c-paper);
}

/* ---------- 02 编号对照 ---------- */
.page-products .pr-numbers__grid {
  align-items: start;
}
.page-products .pr-numbers .prose,
.page-products .pr-naming .prose,
.page-products .pr-subscribe .prose {
  color: var(--pr-body-on-dark);
}
.page-products .pr-numbers .section-title {
  margin-top: 10px;
}
.page-products .pr-numbers .prose {
  margin-top: 16px;
}
.page-products .pr-prefix {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(206px, 1fr));
}
.page-products .pr-prefix li {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 4px 14px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(11, 31, 42, .45);
}
.page-products .pr-prefix b {
  grid-row: span 2;
  font-size: var(--fs-3);
  font-weight: 700;
  color: var(--c-gold);
  letter-spacing: .08em;
}
.page-products .pr-prefix span {
  font-size: var(--fs-5);
  font-weight: 600;
  color: var(--c-paper);
}
.page-products .pr-prefix em {
  font-style: normal;
  font-size: var(--fs-7);
  color: var(--c-mute);
}
.page-products .pr-copy-hint {
  margin: clamp(20px, 3vw, 28px) 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-7);
  color: var(--c-mute);
}
.page-products .copy-chip {
  font-family: var(--font-mono);
  font-size: var(--fs-7);
  letter-spacing: .06em;
}

/* ---------- 03 资料下载 ---------- */
.page-products .section--paper {
  color: var(--pr-paper-ink);
}
.page-products .section--paper .pr-head__desc {
  color: var(--pr-slate);
}
.page-products .pr-banner {
  margin: 0 0 clamp(24px, 3.5vw, 38px);
}
.page-products .pr-toolbar {
  position: sticky;
  top: 78px;
  z-index: 3;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding: 14px 0;
  margin-bottom: clamp(14px, 2vw, 20px);
  background: var(--c-paper);
  border-top: 2px solid var(--pr-paper-ink);
  border-bottom: 1px solid var(--pr-line-soft);
}
.page-products .pr-chips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-products .pr-chip {
  display: inline-block;
  padding: 7px 15px;
  border: 1px solid var(--pr-line-soft);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--pr-paper-ink);
  font-family: var(--font-mono);
  font-size: var(--fs-7);
  letter-spacing: .05em;
  text-decoration: none;
  transition: background-color .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.page-products .pr-chip:hover,
.page-products .pr-chip:focus-visible {
  background: var(--c-signal);
  border-color: var(--c-signal);
  color: #14202A;
}
.page-products .pr-toolbar__count {
  margin: 0;
  font-size: var(--fs-7);
  letter-spacing: .06em;
  color: var(--pr-slate);
}
.page-products .pr-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--pr-line-soft);
  border-radius: var(--radius-md);
  background: var(--c-sand);
}
.page-products .pr-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: var(--fs-6);
}
.page-products .pr-table__caption {
  padding: 16px 18px 12px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--fs-7);
  letter-spacing: .04em;
  color: var(--pr-slate);
}
.page-products .pr-table thead th {
  padding: 12px 18px;
  text-align: left;
  white-space: nowrap;
  font-size: var(--fs-7);
  font-weight: 700;
  letter-spacing: .07em;
  color: var(--pr-paper-ink);
  background: #DED2B6;
  border-bottom: 2px solid var(--pr-paper-ink);
}
.page-products .pr-table tbody tr {
  background: var(--c-sand);
  transition: background-color .2s var(--ease);
}
.page-products .pr-table tbody tr:hover {
  background: #EFE7D6;
}
.page-products .pr-table tbody th,
.page-products .pr-table tbody td {
  padding: 13px 18px;
  text-align: left;
  font-weight: 400;
  border-bottom: 1px solid var(--pr-line-soft);
  vertical-align: top;
}
.page-products .pr-table tbody:last-child tr:last-child th,
.page-products .pr-table tbody:last-child tr:last-child td {
  border-bottom: 0;
}
.page-products .pr-table tbody {
  scroll-margin-top: 150px;
}
.page-products .pr-num-cell {
  width: 1%;
  white-space: nowrap;
}
.page-products .pr-table .copy-chip {
  padding: 5px 13px;
  border: 1px solid var(--pr-line-soft);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--pr-gold-deep);
  font-family: var(--font-mono);
  font-size: var(--fs-7);
  letter-spacing: .06em;
  cursor: pointer;
  transition: background-color .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.page-products .pr-table .copy-chip:hover,
.page-products .pr-table .copy-chip:focus-visible {
  border-color: var(--c-signal);
  color: var(--c-signal);
}
.page-products .pr-table .copy-chip.is-copied {
  background: var(--c-gold);
  border-color: var(--c-gold);
  color: #14202A;
}
.page-products .pr-mono-cell {
  font-family: var(--font-mono);
  letter-spacing: .05em;
  color: var(--pr-slate);
  white-space: nowrap;
}
.page-products .pr-detail summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  color: var(--pr-paper-ink);
}
.page-products .pr-detail summary::-webkit-details-marker {
  display: none;
}
.page-products .pr-detail summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--c-signal);
}
.page-products .pr-detail[open] summary::before {
  content: "−";
}
.page-products .pr-detail__body {
  margin: 10px 0 0;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: rgba(11, 31, 42, .08);
  font-family: var(--font-mono);
  font-size: var(--fs-7);
  letter-spacing: .04em;
  color: var(--pr-slate);
  word-break: break-all;
}

/* ---------- 04 命名与版本 ---------- */
.page-products .pr-naming__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}
.page-products .pr-naming .section-title {
  margin-top: 10px;
}
.page-products .pr-naming .prose {
  margin-top: 16px;
}
.page-products .pr-formula {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: clamp(20px, 3vw, 28px) 0 0;
}
.page-products .pr-formula__part {
  padding: 9px 16px;
  border: 1px solid var(--signal-line);
  border-radius: var(--radius-pill);
  background: var(--signal-soft);
  font-size: var(--fs-6);
  font-weight: 600;
  color: var(--c-paper);
}
.page-products .pr-formula__part--ver {
  border-color: var(--c-gold);
  background: transparent;
  font-family: var(--font-mono);
  color: var(--c-gold);
}
.page-products .pr-formula__join {
  font-family: var(--font-mono);
  color: var(--c-tide);
}
.page-products .pr-formula__demo {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-5);
  letter-spacing: .04em;
  color: var(--c-gold);
  word-break: break-all;
}
.page-products .pr-version {
  display: grid;
  gap: 14px;
  margin-top: clamp(24px, 3.5vw, 32px);
  grid-template-columns: repeat(auto-fit, minmax(228px, 1fr));
}
.page-products .pr-version__item {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(11, 31, 42, .45);
}
.page-products .pr-version__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-7);
  letter-spacing: .1em;
  color: var(--c-mute);
}
.page-products .pr-version__val {
  margin: 6px 0 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-3);
  color: var(--c-gold);
}
.page-products .pr-version__desc {
  margin: 0;
  font-size: var(--fs-6);
  line-height: 1.7;
  color: var(--c-mute);
}
.page-products .pr-naming .status-note {
  margin-top: clamp(20px, 3vw, 28px);
}

/* ---------- 05 使用路径 ---------- */
.page-products .pr-paths__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}
.page-products .pr-tree {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}
.page-products .pr-tree__branch {
  position: relative;
  padding-left: 26px;
}
.page-products .pr-tree__branch::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 22px;
  bottom: -28px;
  width: 2px;
  background: var(--line);
}
.page-products .pr-tree__branch:last-child::before {
  display: none;
}
.page-products .pr-tree__name {
  position: relative;
  margin: 0 0 10px;
  font-size: var(--fs-4);
  letter-spacing: -.01em;
  color: var(--c-paper);
}
.page-products .pr-tree__name::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-signal);
  transform: translateY(-50%);
}
.page-products .pr-tree__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.page-products .pr-tree__step {
  font-size: var(--fs-6);
  line-height: 1.6;
  color: var(--c-mute);
}
.page-products .pr-tree__dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin-right: 9px;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-size: var(--fs-7);
  color: var(--c-tide);
  vertical-align: -3px;
}

/* ---------- 06 订阅与更新 ---------- */
.page-products .pr-subscribe .media-frame {
  margin-bottom: clamp(26px, 4vw, 40px);
}
.page-products .pr-subscribe__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}
.page-products .pr-subscribe .section-title {
  margin-top: 10px;
}
.page-products .pr-subscribe .prose {
  margin-top: 16px;
}
.page-products .pr-cadence {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-products .pr-cadence li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-size: var(--fs-6);
  color: var(--c-mute);
}
.page-products .pr-cadence .mono {
  flex: 0 0 auto;
  font-size: var(--fs-6);
  color: var(--c-gold);
}
.page-products .pr-subscribe__side .btn {
  margin-right: 10px;
  margin-bottom: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .pr-formula__demo {
    font-size: var(--fs-4);
  }
}

@media (min-width: 900px) {
  .page-products .pr-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(40px, 6vw, 88px);
  }
  .page-products .pr-naming__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }
  .page-products .pr-subscribe__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }
}

@media (min-width: 960px) {
  .page-products .pr-paths__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (min-width: 1080px) {
  .page-products .pr-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding-bottom: 28px;
  }
  .page-products .pr-card:nth-child(3n + 2) {
    transform: translateY(24px);
  }
}

@media (max-width: 560px) {
  .page-products .pr-table {
    min-width: 560px;
  }
  .page-products .pr-table thead th,
  .page-products .pr-table tbody th,
  .page-products .pr-table tbody td {
    padding-left: 12px;
    padding-right: 12px;
  }
  .page-products .pr-toolbar {
    position: static;
  }
}