.page-products {
  --dl-rail-w: 278px;
  --dl-shadow: 4px 4px 0 rgba(23, 40, 90, 0.16);
  --dl-shadow-sm: 3px 3px 0 rgba(23, 40, 90, 0.14);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.8;
}

.page-products [id] {
  scroll-margin-top: 96px;
}

.page-products .dl-crumb {
  padding: 18px clamp(16px, 4vw, 32px) 0;
}

/* ---------- 首屏 ---------- */
.page-products .dl-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 44px) clamp(16px, 4vw, 32px) clamp(36px, 6vw, 68px);
  border-bottom: 1px solid var(--paper-2);
  background-image:
    radial-gradient(120% 90% at 8% 0%, rgba(232, 179, 58, 0.20), transparent 58%),
    radial-gradient(90% 80% at 92% 10%, rgba(23, 195, 178, 0.18), transparent 62%),
    linear-gradient(178deg, #FBF8F1 0%, var(--paper) 62%, #F3EEE2 100%);
}

.page-products .dl-hero::after {
  content: "";
  position: absolute;
  inset: -25%;
  background: radial-gradient(closest-side, rgba(43, 74, 140, 0.16), transparent 70%);
  animation: dl-drift 24s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes dl-drift {
  from { transform: translate3d(-6%, -4%, 0) scale(1); }
  to { transform: translate3d(7%, 6%, 0) scale(1.14); }
}

.page-products .dl-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 18px;
}

.page-products .dl-hero__text {
  max-width: 40em;
}

.page-products .dl-hero__kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ochre);
}

.page-products .dl-hero__title {
  margin: 0 0 16px;
  font-size: clamp(30px, 6.4vw, 62px);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--indigo);
  text-wrap: balance;
}

.page-products .dl-hero__lede {
  margin: 0 0 24px;
  max-width: 34em;
  color: var(--ink);
}

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

.page-products .dl-hero__stamp {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--mist);
}

/* ---------- 主体布局 ---------- */
.page-products .dl-body {
  padding: clamp(28px, 4vw, 48px) clamp(16px, 4vw, 32px) clamp(56px, 8vw, 88px);
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-products .dl-rail {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-products .dl-rail__block {
  border-top: 2px solid var(--indigo);
  padding-top: 12px;
}

.page-products .dl-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.page-products .dl-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
}

.page-products .dl-rail__list a {
  display: inline-block;
  padding: 2px 0;
  font-size: 15px;
  color: var(--indigo-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .dl-rail__list a:hover,
.page-products .dl-rail__list a:focus-visible {
  color: var(--indigo);
  border-bottom-color: var(--electric);
}

.page-products .dl-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .dl-chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 13px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--indigo);
  background: var(--paper);
  border: 1px solid var(--indigo);
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .dl-chip:hover,
.page-products .dl-chip:focus-visible {
  background: var(--ochre);
  border-color: var(--ochre);
  color: var(--paper);
}

.page-products .dl-rail__brief {
  display: grid;
  gap: 8px;
  justify-items: start;
  padding: 16px;
  background: var(--paper-2);
  border: 1px solid var(--indigo);
  box-shadow: var(--dl-shadow-sm);
}

.page-products .dl-rail__code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--indigo);
}

.page-products .dl-rail__line {
  margin: 0;
  font-size: 14px;
  color: var(--mist);
}

.page-products .dl-main {
  display: grid;
  gap: clamp(40px, 6vw, 72px);
  min-width: 0;
}

/* ---------- 章节公共 ---------- */
.page-products .dl-section {
  min-width: 0;
}

.page-products .dl-lead {
  margin: 18px 0 22px;
  max-width: 34em;
  color: var(--ink);
}

.page-products .dl-note {
  margin: 18px 0 0;
  max-width: 36em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .dl-inline-link {
  color: var(--indigo-2);
  text-decoration: none;
  border-bottom: 1px solid var(--electric);
}

.page-products .dl-inline-link:hover,
.page-products .dl-inline-link:focus-visible {
  color: var(--indigo);
  border-bottom-width: 2px;
}

.page-products .dl-mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  font-size: 14px;
}

/* ---------- 版本卡 ---------- */
.page-products .dl-version {
  display: grid;
  border: 1px solid var(--indigo);
  background: var(--paper);
  box-shadow: var(--dl-shadow);
  overflow: hidden;
}

.page-products .dl-version__media {
  position: relative;
  min-height: 200px;
  background: linear-gradient(160deg, var(--indigo), var(--indigo-2));
}

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

.page-products .dl-version__body {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: clamp(20px, 3.4vw, 32px);
}

.page-products .dl-version__top {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .dl-version__code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 28px);
  letter-spacing: 0.06em;
  color: var(--indigo);
}

.page-products .dl-facts {
  margin: 0;
  display: grid;
}

.page-products .dl-facts > div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
  border-bottom: 1px solid var(--paper-2);
}

.page-products .dl-facts dt {
  font-size: 14px;
  color: var(--mist);
}

.page-products .dl-facts dd {
  margin: 0;
  text-align: right;
  font-weight: 500;
  color: var(--ink);
}

.page-products .dl-changes {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  font-size: 15px;
}

.page-products .dl-changes li {
  position: relative;
  padding-left: 20px;
}

.page-products .dl-changes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 10px;
  height: 2px;
  background: var(--ochre);
}

.page-products .dl-version__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

/* ---------- 图 ---------- */
.page-products .dl-figure {
  margin: 0 0 22px;
  border: 1px solid var(--indigo);
  background: var(--paper-2);
}

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

.page-products .dl-figure figcaption {
  padding: 8px 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  background: var(--paper);
  border-top: 1px solid var(--paper-2);
}

.page-products .dl-figure--tall,
.page-products .dl-figure--square {
  margin-bottom: 0;
}

/* ---------- 适配表格 ---------- */
.page-products .dl-tablewrap {
  overflow-x: auto;
  border: 1px solid var(--indigo);
  background: var(--paper);
  -webkit-overflow-scrolling: touch;
}

.page-products .dl-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.6;
}

.page-products .dl-table__caption {
  padding: 12px 14px;
  text-align: left;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
  background: var(--paper-2);
  border-bottom: 1px solid var(--paper-2);
}

.page-products .dl-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  padding: 12px 14px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--paper);
  background: var(--indigo);
  white-space: nowrap;
}

.page-products .dl-table td {
  padding: 14px;
  border-bottom: 1px solid var(--paper-2);
  vertical-align: middle;
  white-space: nowrap;
}

.page-products .dl-table td:first-child {
  font-weight: 500;
  color: var(--ink);
}

.page-products .dl-table__group th {
  padding: 10px 14px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--indigo);
  background: var(--paper-2);
  border-bottom: 1px solid var(--paper-2);
}

.page-products .dl-table tbody tr:hover td {
  background: #FBF8F1;
}

/* ---------- iOS 步骤 ---------- */
.page-products .dl-steps-grid {
  display: grid;
  gap: 24px;
}

.page-products .dl-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: dlstep;
}

.page-products .dl-step {
  border: 1px solid var(--paper-2);
  background: var(--paper);
  box-shadow: 2px 2px 0 rgba(23, 40, 90, 0.08);
}

.page-products .dl-step summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--indigo);
  font-weight: 600;
  transition: background-color var(--dur) var(--ease);
}

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

.page-products .dl-step summary:hover {
  background: var(--paper-2);
}

.page-products .dl-step summary::after {
  content: "";
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 7px solid var(--ochre);
  transition: transform var(--dur) var(--ease);
}

.page-products .dl-step details[open] summary::after {
  transform: rotate(180deg);
}

.page-products .dl-step details[open] summary {
  background: var(--paper-2);
}

.page-products .dl-step__num {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0;
  color: var(--ochre);
  border: 1px solid var(--ochre);
}

.page-products .dl-step__name {
  font-size: 16px;
  line-height: 1.5;
}

.page-products .dl-step__body {
  margin: 0;
  padding: 4px 16px 16px 16px;
  font-size: 15px;
  color: var(--ink);
}

/* ---------- 版本切换 ---------- */
.page-products .dl-switch {
  display: grid;
  gap: 14px;
  margin-bottom: 24px;
}

.page-products .dl-panel {
  border: 1px solid var(--indigo);
  background: var(--paper);
  box-shadow: var(--dl-shadow-sm);
}

.page-products .dl-panel > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  color: var(--indigo);
  background: var(--paper-2);
}

.page-products .dl-panel > summary::-webkit-details-marker {
  display: none;
}

.page-products .dl-panel > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--ochre);
}

.page-products .dl-panel[open] > summary::after {
  content: "−";
}

.page-products .dl-panel__body {
  display: grid;
  gap: 12px;
  padding: 16px;
  font-size: 15px;
}

.page-products .dl-panel__body p {
  margin: 0;
}

.page-products .dl-bullets {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.page-products .dl-bullets li {
  position: relative;
  padding-left: 18px;
}

.page-products .dl-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 9px;
  height: 2px;
  background: var(--turquoise);
}

.page-products .dl-versions {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
}

.page-products .dl-versions a {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  font-size: 15px;
  color: var(--indigo-2);
  text-decoration: none;
  border-bottom: 1px solid var(--paper-2);
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-products .dl-versions a:hover,
.page-products .dl-versions a:focus-visible {
  color: var(--indigo);
  padding-left: 4px;
}

.page-products .dl-versions span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 异常自查 ---------- */
.page-products .dl-checks {
  counter-reset: dlcheck;
  border-top: 1px solid var(--paper-2);
}

.page-products .dl-check {
  counter-increment: dlcheck;
  border-bottom: 1px solid var(--paper-2);
}

.page-products .dl-check > summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 4px;
  cursor: pointer;
  list-style: none;
  font-weight: 500;
  color: var(--indigo);
  transition: background-color var(--dur) var(--ease);
}

.page-products .dl-check > summary::-webkit-details-marker {
  display: none;
}

.page-products .dl-check > summary:hover {
  background: #FBF8F1;
}

.page-products .dl-check > summary::before {
  content: counter(dlcheck, decimal-leading-zero);
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ochre);
}

.page-products .dl-check > summary::after {
  content: "";
  margin-left: auto;
  align-self: center;
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 7px solid var(--indigo);
  transition: transform var(--dur) var(--ease);
}

.page-products .dl-check[open] > summary::after {
  transform: rotate(180deg);
}

.page-products .dl-check__body {
  margin: 0;
  padding: 0 4px 16px 38px;
  font-size: 15px;
  color: var(--ink);
}

/* ---------- 校验 ---------- */
.page-products .dl-verify {
  display: grid;
  gap: 24px;
  margin-top: 18px;
}

.page-products .dl-verify__list {
  margin: 0 0 4px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  font-size: 15px;
}

.page-products .dl-verify__list li {
  position: relative;
  padding-left: 26px;
}

.page-products .dl-verify__list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  font-weight: 700;
  color: var(--turquoise);
}

/* ---------- 收束条 ---------- */
.page-products .dl-cta {
  display: grid;
  gap: 14px;
  padding: clamp(22px, 4vw, 36px);
  color: var(--paper);
  background: var(--indigo);
  border-left: 6px solid var(--ochre);
}

.page-products .dl-cta__title {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.3;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .dl-cta__text {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  color: rgba(245, 241, 232, 0.86);
}

.page-products .dl-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .dl-cta__actions a {
  color: var(--indigo);
  background: var(--paper);
  border-color: var(--paper);
}

/* ---------- 断点 ---------- */
@media (max-width: 999px) {
  .page-products .dl-rail__list,
  .page-products .dl-chips {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 6px;
    scrollbar-width: thin;
  }

  .page-products .dl-rail__list li,
  .page-products .dl-chips a {
    flex: 0 0 auto;
  }

  .page-products .dl-rail__list a,
  .page-products .dl-chips a {
    white-space: nowrap;
  }
}

@media (max-width: 639px) {
  .page-products .dl-table thead th:first-child,
  .page-products .dl-table td:first-child {
    position: sticky;
    left: 0;
    z-index: 1;
    background: var(--paper);
  }

  .page-products .dl-table thead th:first-child {
    z-index: 3;
    background: var(--indigo);
  }

  .page-products .dl-table tbody tr:hover td:first-child {
    background: #FBF8F1;
  }

  .page-products .dl-check__body {
    padding-left: 4px;
  }

  .page-products .dl-hero__stamp {
    writing-mode: horizontal-tb;
    letter-spacing: 0.12em;
  }
}

@media (min-width: 720px) {
  .page-products .dl-switch {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .page-products .dl-cta {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 860px) {
  .page-products .dl-steps-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    align-items: start;
  }

  .page-products .dl-verify {
    grid-template-columns: minmax(0, 1fr) 220px;
    align-items: start;
  }

  .page-products .dl-version {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }
}

@media (min-width: 1000px) {
  .page-products .dl-hero__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 32px;
  }

  .page-products .dl-body {
    grid-template-columns: var(--dl-rail-w) minmax(0, 1fr);
    align-items: start;
    gap: clamp(36px, 4vw, 56px);
  }

  .page-products .dl-rail {
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .dl-hero::after {
    animation: none;
  }

  .page-products .dl-step summary::after,
  .page-products .dl-check > summary::after,
  .page-products .dl-chip,
  .page-products .dl-versions a {
    transition: none;
  }
}