.page-products {
  --prod-edge: var(--table);
  background: var(--paper);
  color: var(--graphite);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-products .breadcrumbs {
  padding: 20px 0 0;
  font-size: 13px;
  color: var(--fog);
}

.page-products .breadcrumbs a {
  color: var(--cloth);
  text-decoration: none;
}

.page-products .breadcrumbs a:hover {
  color: var(--chip);
}

.page-products .breadcrumbs__sep {
  margin: 0 8px;
  color: var(--sand);
}

/* ---------- 首屏 ---------- */

.page-products .prod-hero {
  display: grid;
  gap: 28px;
  padding: 28px 0 clamp(36px, 6vw, 64px);
}

.page-products .prod-hero__copy .kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--chip);
  margin: 0 0 14px;
}

.page-products .prod-hero__copy h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 52px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 20px;
  max-width: 15em;
}

.page-products .prod-hero__copy .lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--graphite);
  max-width: 34em;
  margin: 0 0 26px;
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .prod-hero__visual {
  background: var(--ink);
  border: 2px solid var(--table);
  border-radius: var(--r-b);
  padding: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-products .screen-wire {
  display: block;
  width: 100%;
  height: auto;
  max-width: 460px;
}

/* ---------- 布局 ---------- */

.page-products .layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.page-products .prod-main {
  min-width: 0;
}

.page-products .prod-section {
  scroll-margin-top: calc(var(--header-h) + 24px);
  padding: clamp(32px, 5vw, 56px) 0;
}

.page-products .section-head {
  margin-bottom: 22px;
}

.page-products .section-number {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(40px, 7vw, 64px);
  line-height: 1;
  color: var(--sand);
  transition: color 320ms var(--ease);
}

.page-products .section-number.is-active {
  color: var(--chip);
}

.page-products .section-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 4.2vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 10px 0 0;
}

.page-products .prod-section > .lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--graphite);
  max-width: 38em;
  margin: 0 0 26px;
}

.page-products .prod-note {
  font-size: 14px;
  line-height: 1.75;
  color: var(--fog);
  border-left: 3px solid var(--gold);
  padding-left: 14px;
  margin: 24px 0 0;
  max-width: 40em;
}

.page-products .prod-sub {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin: 34px 0 16px;
}

.page-products .divider-band {
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--chip) 0%, var(--gold) 45%, var(--sand) 100%);
}

/* ---------- 目录 ---------- */

.page-products .prod-toc {
  border-top: 4px solid var(--chip);
  padding-top: 14px;
}

.page-products .prod-toc .toc__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--fog);
  margin: 0 0 12px;
}

.page-products .prod-toc .toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .prod-toc .toc-link {
  display: block;
  white-space: nowrap;
  font-size: 13px;
  color: var(--graphite);
  text-decoration: none;
  padding: 7px 13px;
  border: 1px solid var(--sand);
  border-radius: 999px;
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}

.page-products .prod-toc .toc-link:hover {
  color: var(--chip);
  border-color: var(--chip);
  background: #fff;
}

.page-products .prod-toc .toc-link.is-active {
  color: var(--paper);
  background: var(--table);
  border-color: var(--table);
}

/* ---------- 三入口对照表 ---------- */

.page-products .table-wrap {
  overflow-x: auto;
  border: 2px solid var(--table);
  border-radius: var(--r-a);
}

.page-products .entry-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
  font-size: 14px;
}

.page-products .entry-table th {
  background: var(--cloth);
  color: var(--paper);
  text-align: left;
  font-weight: 600;
  padding: 14px 16px;
  font-size: 13px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-products .entry-table td {
  padding: 20px 16px;
  border-bottom: 1px solid var(--sand);
  line-height: 1.65;
  vertical-align: top;
  color: var(--graphite);
}

.page-products .entry-table tbody tr {
  transition: background 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-products .entry-table tbody tr:nth-child(even) {
  background: var(--sand);
}

.page-products .entry-table tbody tr:hover {
  background: #DCD4C1;
  box-shadow: inset 3px 0 0 var(--chip);
}

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

.page-products .entry-name {
  font-weight: 700;
  color: var(--ink);
}

/* ---------- 新版通道 ---------- */

.page-products .prod-changes {
  margin-top: 28px;
}

.page-products .prod-changes .card {
  background: var(--paper);
  border: 1px solid var(--sand);
  border-left: 3px solid var(--sand);
  border-radius: var(--r-a);
  padding: 22px 20px;
  transition: transform 200ms var(--ease), border-color 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-products .prod-changes .card:hover {
  transform: translateY(-2px);
  border-left-color: var(--chip);
  box-shadow: 0 10px 24px rgba(8, 16, 14, 0.08);
}

.page-products .prod-changes .card__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 10px;
}

.page-products .prod-changes .card__body {
  font-size: 14px;
  line-height: 1.75;
  color: var(--graphite);
  margin: 0;
}

.page-products .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: none;
}

.page-products .step-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  font-size: 15px;
  line-height: 1.7;
  color: var(--graphite);
  background: var(--paper);
  border: 1px solid var(--sand);
  border-radius: var(--r-a);
  padding: 14px 18px;
}

.page-products .step-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--chip);
  color: var(--paper);
  font-size: 13px;
  font-weight: 700;
}

/* ---------- 标签切换 ---------- */

.page-products .prod-tabs {
  margin-top: 4px;
}

.page-products .prod-tabs .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.page-products .prod-tabs .tab-btn {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  padding: 10px 22px;
  border: 2px solid var(--table);
  border-radius: 999px;
  background: transparent;
  color: var(--table);
  cursor: pointer;
  transition: background 200ms var(--ease), color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-products .prod-tabs .tab-btn:hover {
  border-color: var(--chip);
  color: var(--chip);
}

.page-products .prod-tabs .tab-btn[aria-selected="true"],
.page-products .prod-tabs .tab-btn.is-active {
  background: var(--table);
  border-color: var(--table);
  color: var(--paper);
}

.page-products .panel-body {
  display: grid;
  gap: 24px;
  align-items: center;
}

.page-products .panel-text h3 {
  font-family: var(--font-display);
  font-size: clamp(19px, 3vw, 24px);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 12px;
}

.page-products .panel-text p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--graphite);
  margin: 0 0 16px;
}

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

.page-products .tick-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-products .tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--chip);
  transform: rotate(45deg);
}

/* ---------- 记录模块 ---------- */

.page-products .record-layout {
  display: grid;
  gap: 26px;
  align-items: start;
}

.page-products .record-facts {
  margin: 0;
  display: grid;
  gap: 20px;
}

.page-products .record-facts > div {
  border-left: 3px solid var(--clip, var(--chip));
  border-left-color: var(--chip);
  padding-left: 16px;
}

.page-products .record-facts dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cloth);
  margin-bottom: 7px;
}

.page-products .record-facts dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--graphite);
}

/* ---------- 图片容器 ---------- */

.page-products .img-frame {
  border: 2px solid var(--table);
  border-radius: var(--r-b);
  overflow: hidden;
  background: var(--ink);
  margin: 0 0 26px;
}

.page-products .img-frame--square {
  margin-bottom: 0;
}

.page-products .img-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-products .img-frame--tall img {
  aspect-ratio: 9 / 20;
  object-fit: cover;
}

/* ---------- 折叠面板 ---------- */

.page-products .fold-stack {
  display: grid;
  gap: 14px;
}

.page-products .fold {
  border: 2px solid var(--table);
  border-radius: var(--r-b);
  background: var(--paper);
  overflow: hidden;
}

.page-products .fold[open] {
  background: #fff;
}

.page-products .fold__summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

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

.page-products .fold__summary::before {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--chip);
  border-bottom: 2px solid var(--chip);
  transform: rotate(-45deg);
  margin-top: -4px;
  transition: transform 200ms var(--ease);
}

.page-products .fold[open] .fold__summary::before {
  transform: rotate(45deg);
  margin-top: 0;
}

.page-products .fold__body {
  padding: 0 22px 20px;
  border-top: 1px solid var(--sand);
  margin-top: 0;
}

.page-products .fold__body p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--graphite);
  margin: 16px 0 0;
}

.page-products .text-link {
  color: var(--cloth);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--sand);
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-products .text-link:hover {
  color: var(--chip);
  border-color: var(--chip);
}

/* ---------- 旁注 ---------- */

.page-products .prod-aside {
  display: grid;
  gap: 18px;
}

.page-products .annotation {
  background: var(--sand);
  border-radius: var(--r-a);
  padding: 16px 18px;
}

.page-products .annotation__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cloth);
  margin: 0 0 8px;
}

.page-products .annotation p {
  font-size: 13px;
  line-height: 1.75;
  color: var(--graphite);
  margin: 0;
}

.page-products .annotation p + p {
  margin-top: 6px;
}

.page-products .prod-aside__nav {
  background: var(--table);
}

.page-products .prod-aside__nav .annotation__label {
  color: var(--gold);
}

.page-products .prod-aside__nav p {
  color: rgba(247, 245, 239, 0.78);
}

.page-products .aside-links {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .aside-links a {
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid rgba(247, 245, 239, 0.28);
  padding-bottom: 2px;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-products .aside-links a:hover {
  color: var(--gold);
  border-color: var(--gold);
}

/* ---------- 焦点 ---------- */

.page-products a:focus-visible,
.page-products button:focus-visible,
.page-products summary:focus-visible {
  outline: 2px solid var(--chip);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px var(--paper);
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-products .prod-hero__actions {
    gap: 14px;
  }

  .page-products .step-list li {
    padding: 16px 20px;
  }
}

@media (min-width: 820px) {
  .page-products .record-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 36px;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-products .prod-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 44px;
    align-items: center;
    padding-bottom: clamp(48px, 6vw, 76px);
  }

  .page-products .panel-body {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 34px;
  }

  .page-products .img-frame {
    margin-bottom: 30px;
  }

  .page-products .prod-tabs .img-frame {
    margin-bottom: 0;
  }
}

@media (min-width: 1000px) {
  .page-products .layout {
    grid-template-columns: 190px minmax(0, 1fr) 240px;
    gap: 40px;
  }

  .page-products .prod-toc {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-products .prod-toc .toc-list {
    flex-direction: column;
    overflow: visible;
  }

  .page-products .prod-toc .toc-link {
    white-space: normal;
    border-radius: var(--r-a);
    border-color: transparent;
    border-left: 3px solid var(--sand);
    padding: 8px 12px;
  }

  .page-products .prod-toc .toc-link.is-active {
    border-left-color: var(--chip);
    background: #fff;
    color: var(--ink);
  }

  .page-products .prod-aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-products .record-facts {
    gap: 26px;
  }
}

@media (max-width: 719px) {
  .page-products .table-wrap {
    overflow-x: visible;
    border: 0;
    border-radius: 0;
  }

  .page-products .entry-table {
    min-width: 0;
  }

  .page-products .entry-table thead {
    display: none;
  }

  .page-products .entry-table tbody tr {
    display: block;
    border: 2px solid var(--table);
    border-radius: var(--r-a);
    margin-bottom: 14px;
    padding: 6px 0;
    background: var(--paper);
  }

  .page-products .entry-table tbody tr:nth-child(even) {
    background: var(--paper);
  }

  .page-products .entry-table tbody tr:hover {
    box-shadow: inset 3px 0 0 var(--chip);
  }

  .page-products .entry-table td {
    display: flex;
    gap: 14px;
    border-bottom: 1px dashed var(--sand);
    padding: 11px 16px;
    font-size: 14px;
  }

  .page-products .entry-table td:last-child {
    border-bottom: 0;
  }

  .page-products .entry-table td::before {
    content: attr(data-label);
    flex: 0 0 84px;
    font-size: 12px;
    color: var(--fog);
    line-height: 1.65;
    padding-top: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-changes .card,
  .page-products .entry-table tbody tr,
  .page-products .section-number,
  .page-products .prod-tabs .tab-btn,
  .page-products .fold__summary::before {
    transition: none !important;
  }

  .page-products .prod-changes .card:hover {
    transform: none;
  }
}

.page-products {
  --clip: currentColor;
}