.page-products {
  --pp-panel: var(--paper);
  --pp-panel-alt: var(--cream);
  padding-bottom: 96px;
}

.page-products .crumbs {
  padding-top: 22px;
}

/* ---------- 首屏：非对称分栏 ---------- */
.page-products__hero {
  display: grid;
  gap: 34px;
  padding-top: 18px;
}

.page-products__hero-copy .lede {
  max-width: 34em;
}

@media (min-width: 920px) {
  .page-products__hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 64px;
    align-items: center;
    padding-top: 30px;
  }
}

.page-products .media-frame {
  margin: 0;
}

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

.page-products__quick {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 30px 0 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products__quick > div {
  background: var(--pp-panel);
  padding: 14px 12px 13px;
}

.page-products__quick dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--mist-deep);
}

.page-products__quick dd {
  margin: 7px 0 0;
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 500;
  color: var(--purple-deep);
  letter-spacing: 0.02em;
}

@media (max-width: 420px) {
  .page-products__quick dd {
    font-size: 16px;
  }
}

/* ---------- A-01 设备分流 ---------- */
.page-products__devices {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 26px;
}

@media (min-width: 640px) {
  .page-products__devices {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-products__devices {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.page-products__device {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 14px 16px;
  background: var(--pp-panel);
  border: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  overflow: hidden;
  transition:
    border-color 0.18s var(--ease),
    background-color 0.18s var(--ease),
    transform 0.18s var(--ease);
}

.page-products__device::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: var(--gold);
  transition: width 0.18s var(--ease);
}

.page-products__device:hover,
.page-products__device:focus-visible {
  border-color: var(--gold-soft);
  background: var(--pp-panel-alt);
  transform: translateY(-2px);
}

.page-products__device:hover::after,
.page-products__device:focus-visible::after {
  width: 100%;
}

.page-products__dev-icon {
  width: 24px;
  height: 24px;
  color: var(--purple-mid);
}

.page-products__dev-name {
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--purple-deep);
}

.page-products__dev-note {
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-soft);
}

.page-products__dev-num {
  position: absolute;
  top: 14px;
  right: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- A-02 版本对照 ---------- */
.page-products__versions {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products__ver {
  position: relative;
  padding: 20px 20px 20px 23px;
  background: var(--pp-panel);
  border: 1px solid var(--line);
}

.page-products__ver::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--mist);
}

.page-products__ver--gold::before {
  background: var(--gold);
}

@media (min-width: 780px) {
  .page-products__ver {
    display: grid;
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 30px;
    align-items: start;
    padding: 22px 24px 22px 26px;
  }
}

.page-products__ver-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.page-products__ver-head h3 {
  margin: 0;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--purple-deep);
}

.page-products__ver-link {
  font-size: 14px;
  color: var(--purple-mid);
  text-decoration: none;
  border-bottom: 2px solid var(--gold);
  padding-bottom: 2px;
  transition: color 0.18s var(--ease);
}

.page-products__ver-link:hover {
  color: var(--purple-deep);
}

.page-products__specs {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 24px;
}

.page-products__specs dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--mist-deep);
}

.page-products__specs dd {
  margin: 5px 0 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink);
}

/* ---------- A-03 系统要求 ---------- */
.page-products__reqs {
  margin-top: 28px;
  background: var(--pp-panel);
  border: 1px solid var(--line);
}

.page-products__tabs {
  display: flex;
  flex-wrap: wrap;
  background: var(--pp-panel-alt);
  border-bottom: 1px solid var(--line);
}

.page-products__tab {
  padding: 13px 17px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist-deep);
  cursor: pointer;
  border-right: 1px solid var(--line);
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-products__tab:hover {
  background: var(--pp-panel);
  color: var(--purple-deep);
}

.page-products #reqs-win:checked ~ .page-products__tabs [for="reqs-win"],
.page-products #reqs-mac:checked ~ .page-products__tabs [for="reqs-mac"],
.page-products #reqs-android:checked ~ .page-products__tabs [for="reqs-android"],
.page-products #reqs-ios:checked ~ .page-products__tabs [for="reqs-ios"],
.page-products #reqs-web:checked ~ .page-products__tabs [for="reqs-web"] {
  background: var(--purple-deep);
  color: var(--gold-soft);
}

.page-products__pane {
  display: none;
  padding: 22px 20px 24px;
}

.page-products #reqs-win:checked ~ .page-products__panes .page-products__pane--win,
.page-products #reqs-mac:checked ~ .page-products__panes .page-products__pane--mac,
.page-products #reqs-android:checked ~ .page-products__panes .page-products__pane--android,
.page-products #reqs-ios:checked ~ .page-products__panes .page-products__pane--ios,
.page-products #reqs-web:checked ~ .page-products__panes .page-products__pane--web {
  display: block;
}

.page-products__req-grid {
  display: grid;
  gap: 18px;
}

@media (min-width: 760px) {
  .page-products__req-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 30px;
    align-items: start;
  }
}

.page-products__req-table {
  margin: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products__req-table > div {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 6px 16px;
  padding: 11px 14px;
  background: var(--pp-panel-alt);
}

.page-products__req-table dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist-deep);
}

.page-products__req-table dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-align: right;
}

/* ---------- A-04 安装四步 ---------- */
.page-products__install {
  display: grid;
  gap: 34px;
  margin-top: 28px;
}

@media (min-width: 900px) {
  .page-products__install {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    gap: 56px;
    align-items: start;
  }
}

.page-products__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-products__step {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 22px;
}

.page-products__step:last-child {
  padding-bottom: 0;
}

.page-products__step::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 44px;
  bottom: 0;
  width: 1px;
  background: var(--line-strong);
}

.page-products__step:last-child::before {
  display: none;
}

.page-products__step-num {
  position: relative;
  z-index: 1;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--pp-panel-alt);
  border: 1px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--purple-deep);
}

.page-products__step-body h3 {
  margin: 6px 0 0;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 600;
  color: var(--purple-deep);
}

.page-products__step-body p {
  margin: 8px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-products__step-meta {
  font-family: var(--font-mono);
  font-size: 12px !important;
  letter-spacing: 0.05em;
  color: var(--seal) !important;
}

.page-products__code {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin-top: 14px;
  padding: 12px 14px;
  background: var(--pp-panel-alt);
  border: 1px dashed var(--line-strong);
}

.page-products__code-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist-deep);
}

.page-products__code-val {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--purple-deep);
}

/* ---------- A-05 首次使用检查清单 ---------- */
.page-products__checks {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

@media (min-width: 760px) {
  .page-products__checks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 22px;
  }
}

.page-products__check {
  display: flex;
  gap: 14px;
  padding: 18px 18px 16px;
  background: var(--pp-panel);
  border: 1px solid var(--line);
}

.page-products__check-mark {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  position: relative;
}

.page-products__check-mark::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 3px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  transform: rotate(42deg);
}

.page-products__check-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 600;
  color: var(--purple-deep);
}

.page-products__check p {
  margin: 7px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-products__check a {
  color: var(--purple-mid);
  border-bottom: 1px solid var(--gold-soft);
  text-decoration: none;
}

.page-products__check a:hover {
  border-bottom-color: var(--gold);
}

/* ---------- A-06 更新节奏 ---------- */
.page-products__cadence {
  display: grid;
  gap: 32px;
}

@media (min-width: 900px) {
  .page-products__cadence {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 56px;
    align-items: center;
  }
}

.page-products__cadence-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products__cadence-list li {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 13px 15px;
  background: var(--pp-panel);
}

.page-products__cadence-num {
  flex: 0 0 auto;
  min-width: 62px;
  font-family: var(--font-mono);
  font-size: 21px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-products__cadence-txt {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
}

.page-products__link-row {
  margin: 24px 0 0;
}

/* ---------- A-07 常见问题 ---------- */
.page-products__faq {
  display: grid;
  gap: 32px;
  margin-top: 28px;
}

@media (min-width: 900px) {
  .page-products__faq {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.7fr);
    gap: 48px;
    align-items: start;
  }
}

.page-products__folds {
  display: grid;
  gap: 10px;
}

.page-products__folds .fold {
  background: var(--pp-panel);
  border: 1px solid var(--line);
  padding: 4px 18px;
}

.page-products__folds .fold__sum {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--purple-deep);
  cursor: pointer;
}

.page-products__folds .fold__sum > span:nth-child(2) {
  flex: 1 1 auto;
  min-width: 0;
}

.page-products__folds .fold__body p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-products__folds .fold__body a {
  color: var(--purple-mid);
  border-bottom: 1px solid var(--gold-soft);
  text-decoration: none;
}

.page-products__folds .fold__body a:hover {
  border-bottom-color: var(--gold);
}

.page-products__more {
  margin: 12px 0 0;
  padding: 16px 18px;
  background: var(--pp-panel-alt);
  border-left: 3px solid var(--gold);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-products__more a {
  color: var(--purple-mid);
  border-bottom: 1px solid var(--gold-soft);
  text-decoration: none;
}

.page-products__more a:hover {
  border-bottom-color: var(--gold);
}

/* ---------- 细粒度收尾 ---------- */
@media (max-width: 520px) {
  .page-products__specs {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .page-products__tab {
    padding: 11px 13px;
    font-size: 12px;
  }

  .page-products__ver {
    padding: 18px 16px 18px 19px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products__device,
  .page-products__device::after {
    transition: none;
  }

  .page-products__device:hover {
    transform: none;
  }
}