/* ===== 服务与下载页（/download/） ===== */

.page-products {
  --prod-pad-y: 60px;
  --prod-row-gap: 22px;
  color: var(--mist);
  background: var(--ink);
}

.page-products > section {
  padding-block: var(--prod-pad-y);
  position: relative;
}

.page-products > section + section {
  border-top: 1px solid var(--line-soft);
}

.page-products .media-frame img {
  display: block;
  width: 100%;
}

.page-products .prod-head {
  max-width: 42em;
}

.page-products .prod-head h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: var(--fs-44);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 10px 0 0;
}

.page-products .prod-head p {
  margin: 14px 0 0;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 首屏 ---------- */

.page-products > .prod-hero {
  padding-block: 30px 54px;
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(227, 177, 92, 0.12) 0%, rgba(227, 177, 92, 0) 55%),
    linear-gradient(180deg, var(--ink-deep) 0%, var(--ink) 100%);
  border-bottom: 1px solid var(--line-copper);
}

.page-products .prod-hero .breadcrumb {
  margin-bottom: 30px;
}

.page-products .prod-hero__grid {
  display: grid;
  gap: 34px;
}

.page-products .prod-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.05rem, 6.2vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 12px 0 0;
}

.page-products .prod-hero__desc {
  margin: 18px 0 0;
  max-width: 34em;
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: 1.78;
  color: var(--mist);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .prod-hero__panel {
  position: relative;
  padding: 24px 22px;
  background: linear-gradient(160deg, rgba(16, 36, 56, 0.92) 0%, rgba(6, 16, 25, 0.94) 100%);
  border-top: 2px solid var(--gold);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.34);
}

.page-products .prod-hero__panel-title {
  margin: 0 0 18px;
  padding-bottom: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  border-bottom: 1px solid var(--line-copper);
}

.page-products .prod-hero__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-products .prod-hero__stats li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: baseline;
}

.page-products .prod-hero__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-28);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--gold-hi);
}

.page-products .prod-hero__label {
  font-size: var(--fs-14);
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 六项服务 ---------- */

.page-products .prod-banner {
  margin: 34px 0 30px;
}

.page-products .prod-service-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .prod-service {
  position: relative;
  padding: 22px 20px 24px;
  background: rgba(16, 36, 56, 0.55);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--copper);
  transition: transform var(--t-base) var(--ease),
    border-color var(--t-base) var(--ease),
    box-shadow var(--t-base) var(--ease);
}

.page-products .prod-service:hover {
  transform: translateY(-4px);
  border-left-color: var(--gold);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.34);
}

.page-products .prod-service__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--gold);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line-copper);
}

.page-products .prod-service__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-20);
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 12px 0 10px;
}

.page-products .prod-service__desc {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 版本对照 ---------- */

.page-products .prod-versions__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 32px;
}

.page-products .prod-version-card {
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
}

.page-products .prod-version-card .tag {
  display: inline-block;
  align-self: flex-start;
  margin: 0 0 14px;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--copper);
  border: 1px solid var(--copper);
}

.page-products .prod-version-card h3 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-20);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink-deep);
  margin: 0 0 14px;
}

.page-products .prod-version-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-products .prod-version-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--ink);
}

.page-products .prod-version-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--copper);
}

.page-products .prod-version-card__link {
  display: inline-block;
  align-self: flex-start;
  margin-top: 18px;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--ink-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--copper);
  transition: color var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease);
}

.page-products .prod-version-card__link:hover {
  color: var(--copper);
  border-color: var(--ink-deep);
}

.page-products .prod-versions__figure {
  margin: 0;
}

/* ---------- 适配清单 ---------- */

.page-products .prod-devices__figure {
  margin: 32px 0 28px;
}

.page-products .prod-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-products .prod-filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-products .prod-filter__label {
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--mist);
  background: rgba(16, 36, 56, 0.6);
  border: 1px solid var(--line-soft);
  cursor: pointer;
  transition: background var(--t-fast) var(--ease),
    color var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease);
}

.page-products .prod-filter__label:hover {
  border-color: var(--line-copper);
  color: var(--paper);
}

.page-products .prod-filter__input:checked + .prod-filter__label {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-deep);
}

.page-products .prod-filter__input:focus-visible + .prod-filter__label {
  outline: 2px solid var(--gold-hi);
  outline-offset: 2px;
}

.page-products .prod-devices:has(#prod-os-f1:checked) .prod-table tbody tr:not([data-os="f1"]),
.page-products .prod-devices:has(#prod-os-f2:checked) .prod-table tbody tr:not([data-os="f2"]),
.page-products .prod-devices:has(#prod-os-f3:checked) .prod-table tbody tr:not([data-os="f3"]),
.page-products .prod-devices:has(#prod-os-f4:checked) .prod-table tbody tr:not([data-os="f4"]),
.page-products .prod-devices:has(#prod-os-f5:checked) .prod-table tbody tr:not([data-os="f5"]) {
  display: none;
}

.page-products .prod-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-copper);
  background: rgba(6, 16, 25, 0.55);
  -webkit-overflow-scrolling: touch;
}

.page-products .prod-table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: var(--fs-14);
}

.page-products .prod-table__caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--gold);
  background: var(--ink-deep);
  border-bottom: 1px solid var(--line-copper);
  white-space: nowrap;
}

.page-products .prod-table thead th {
  background: var(--ink-deep);
  color: var(--gold);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line-copper);
  white-space: nowrap;
}

.page-products .prod-table tbody td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--mist);
  line-height: 1.65;
  vertical-align: top;
}

.page-products .prod-table tbody td:first-child {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  color: var(--paper);
  white-space: nowrap;
}

.page-products .prod-table tbody tr {
  transition: background var(--t-fast) var(--ease);
}

.page-products .prod-table tbody tr:nth-child(odd) {
  background: rgba(16, 36, 56, 0.35);
}

.page-products .prod-table tbody tr:hover {
  background: rgba(227, 177, 92, 0.12);
}

.page-products .prod-table tbody tr:hover td:first-child {
  color: var(--gold-hi);
}

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

/* ---------- 三步开启 ---------- */

.page-products .prod-steps__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 34px;
}

.page-products .prod-steps__ticker {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-products .prod-steps__ticker li a {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  background: rgba(16, 36, 56, 0.4);
  border-left: 3px solid var(--copper);
  text-decoration: none;
  color: var(--mist);
  transition: background var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease),
    color var(--t-fast) var(--ease);
}

.page-products .prod-steps__ticker li a:hover,
.page-products .prod-steps__ticker li a:focus-visible {
  background: rgba(227, 177, 92, 0.12);
  border-left-color: var(--gold);
  color: var(--paper);
}

.page-products .prod-steps__idx {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-products .prod-steps__name {
  font-size: var(--fs-14);
  font-weight: 600;
  line-height: 1.5;
}

.page-products .prod-steps__layout:has(#step-1.is-current) .prod-steps__ticker li:nth-child(1) a,
.page-products .prod-steps__layout:has(#step-2.is-current) .prod-steps__ticker li:nth-child(2) a,
.page-products .prod-steps__layout:has(#step-3.is-current) .prod-steps__ticker li:nth-child(3) a {
  background: rgba(227, 177, 92, 0.16);
  border-left-color: var(--gold-hi);
  color: var(--paper);
}

.page-products .prod-steps__figure {
  margin: 0;
}

.page-products .prod-steps__body {
  display: grid;
  gap: var(--prod-row-gap);
}

.page-products .prod-step {
  padding: 26px 22px;
  background: rgba(16, 36, 56, 0.5);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--copper);
  scroll-margin-top: 90px;
  transition: border-color var(--t-base) var(--ease),
    background var(--t-base) var(--ease);
}

.page-products .prod-step.is-current {
  border-top-color: var(--gold-hi);
  background: rgba(16, 36, 56, 0.78);
}

.page-products .prod-step:target {
  border-top-color: var(--gold-hi);
}

.page-products .prod-step__no {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-products .prod-step h3 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-28);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .prod-step p {
  margin: 0 0 14px;
  font-size: var(--fs-16);
  line-height: 1.78;
  color: var(--mist);
  max-width: 38em;
}

.page-products .prod-step__checks {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-products .prod-step__checks li {
  position: relative;
  padding-left: 20px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--mist);
  max-width: 40em;
}

.page-products .prod-step__checks li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.68em;
  width: 7px;
  height: 7px;
  background: var(--copper);
}

.page-products .prod-step__done {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--paper);
}

/* ---------- 常见情形 ---------- */

.page-products .prod-scenes__banner {
  margin: 30px 0;
}

.page-products .prod-scenes__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .prod-scene {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px;
  background: linear-gradient(170deg, rgba(16, 36, 56, 0.72) 0%, rgba(6, 16, 25, 0.88) 100%);
  border: 1px solid var(--line-soft);
  transition: transform var(--t-base) var(--ease),
    border-color var(--t-base) var(--ease);
}

.page-products .prod-scene:hover {
  transform: translateY(-4px);
  border-color: var(--line-copper);
}

.page-products .prod-scene__tag {
  margin: 0;
  padding-bottom: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--gold);
  border-bottom: 1px solid var(--line-copper);
}

.page-products .prod-scene h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-20);
  line-height: 1.35;
  color: var(--paper);
}

.page-products .prod-scene p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--mist);
}

.page-products .prod-scene__link {
  align-self: flex-start;
  margin-top: auto;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid var(--line-copper);
}

.page-products .prod-scene__link:hover {
  color: var(--paper);
  border-color: var(--gold-hi);
}

/* ---------- 更新节奏 ---------- */

.page-products .prod-cadence__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 30px;
  background: var(--line-soft);
  border: 1px solid var(--line-copper);
}

.page-products .prod-cadence__item {
  padding: 22px 20px;
  background: var(--ink);
}

.page-products .prod-cadence__when {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-products .prod-cadence__item p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 人工协助 ---------- */

.page-products .prod-support__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 32px;
}

.page-products .prod-faq {
  border-bottom: 1px solid var(--line-soft);
}

.page-products .prod-faq:first-child {
  border-top: 1px solid var(--line-soft);
}

.page-products .prod-faq summary {
  position: relative;
  padding: 18px 36px 18px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-16);
  line-height: 1.55;
  color: var(--paper);
  transition: color var(--t-fast) var(--ease);
}

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

.page-products .prod-faq summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  line-height: 1;
  color: var(--gold);
}

.page-products .prod-faq[open] summary::after {
  content: "–";
}

.page-products .prod-faq summary:hover {
  color: var(--gold-hi);
}

.page-products .prod-faq summary:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 2px;
}

.page-products .prod-faq p {
  margin: 0 0 20px;
  max-width: 38em;
  font-size: var(--fs-14);
  line-height: 1.78;
  color: var(--mist);
}

.page-products .prod-support__card {
  padding: 24px 22px;
  background: linear-gradient(165deg, rgba(16, 36, 56, 0.9) 0%, rgba(6, 16, 25, 0.92) 100%);
  border: 1px solid var(--line-copper);
  border-top: 2px solid var(--gold);
}

.page-products .prod-support__card .tag {
  display: inline-block;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--gold);
  border: 1px solid var(--line-copper);
}

.page-products .prod-support__list {
  list-style: none;
  margin: 18px 0 22px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .prod-support__list li {
  display: grid;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line-copper);
}

.page-products .prod-support__list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-products .prod-support__k {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-products .prod-support__v {
  font-size: var(--fs-14);
  line-height: 1.65;
  color: var(--paper);
  word-break: break-word;
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-products {
    --prod-pad-y: 72px;
  }

  .page-products .prod-service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .prod-cadence__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .prod-versions__grid {
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-products {
    --prod-pad-y: 88px;
  }

  .page-products > .prod-hero {
    padding-block: 36px 72px;
  }

  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 52px;
    align-items: end;
  }

  .page-products .prod-versions__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-areas:
      "card-a figure"
      "card-b figure";
    column-gap: 34px;
    row-gap: 20px;
    align-items: start;
  }

  .page-products .prod-version-card:nth-child(1) {
    grid-area: card-a;
  }

  .page-products .prod-version-card:nth-child(2) {
    grid-area: card-b;
  }

  .page-products .prod-versions__figure {
    grid-area: figure;
    position: sticky;
    top: 32px;
  }

  .page-products .prod-scenes__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-products .prod-support__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: start;
    gap: 34px;
  }
}

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

  .page-products .prod-steps__layout {
    grid-template-columns: 236px minmax(0, 1fr);
    column-gap: 46px;
    align-items: start;
  }

  .page-products .prod-steps__rail {
    position: sticky;
    top: calc(var(--topbar-h) + 20px);
  }

  .page-products .prod-cadence__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}