.page-products {
  --pp-gap: clamp(48px, 7vw, 104px);
  --pp-panel: rgba(17, 26, 46, 0.72);
  position: relative;
  padding-block: clamp(18px, 3.5vw, 40px) clamp(56px, 8vw, 120px);
  background-color: var(--ink-900);
  background-image:
    radial-gradient(1100px 520px at 12% -6%, rgba(36, 91, 255, 0.20), transparent 62%),
    radial-gradient(880px 460px at 92% 8%, rgba(54, 224, 232, 0.10), transparent 68%),
    repeating-linear-gradient(to right, rgba(27, 42, 68, 0.30) 0 1px, transparent 1px 120px),
    repeating-linear-gradient(to bottom, rgba(27, 42, 68, 0.30) 0 1px, transparent 1px 120px);
  overflow-x: hidden;
}

.page-products .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 36px);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
  align-items: end;
}

.page-products .pp-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(40px, 7.2vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.045em;
  font-weight: 900;
}

.page-products .pp-hero-lead {
  margin-top: clamp(18px, 3vw, 28px);
  max-width: 40ch;
}

.page-products .pp-hero-facts {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px clamp(22px, 4vw, 44px);
}

.page-products .pp-hero-facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.page-products .pp-fact-num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.page-products .pp-fact-label {
  font-size: 12.5px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.page-products .pp-jump {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
}

.page-products .pp-jump a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--muted);
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-products .pp-jump a:hover,
.page-products .pp-jump a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  outline: none;
}

.page-products .pp-hero-visual {
  position: relative;
}

.page-products .pp-frame {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
  overflow: hidden;
}

.page-products .pp-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(to right, rgba(54, 224, 232, 0.07) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(to bottom, rgba(54, 224, 232, 0.07) 0 1px, transparent 1px 56px);
}

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

.page-products .pp-frame--hero {
  aspect-ratio: 4 / 3;
}

.page-products .pp-frame--hero img {
  height: 100%;
}

.page-products .pp-frame--wide {
  aspect-ratio: 16 / 9;
}

.page-products .pp-frame--wide img {
  height: 100%;
}

.page-products .pp-frame--tall {
  aspect-ratio: 4 / 3;
}

.page-products .pp-frame--tall img {
  height: 100%;
}

.page-products .pp-frame-note {
  margin: 10px 0 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
  opacity: 0.75;
}

.page-products .pp-figure {
  margin-top: clamp(26px, 4vw, 44px);
}

/* ---------- 区块通用 ---------- */
.page-products .pp-section {
  margin-top: var(--pp-gap);
}

.page-products .pp-head h2 {
  margin: 12px 0 0;
  font-size: var(--fs-h2);
  line-height: 1.1;
  letter-spacing: -0.035em;
  font-weight: 900;
}

.page-products .pp-head-lead {
  margin-top: 16px;
  max-width: 62ch;
}

/* ---------- 版本控制台 ---------- */
.page-products .dl-console {
  margin-top: clamp(24px, 4vw, 40px);
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-products .dl-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-products .dl-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-bottom: 1px solid var(--line);
}

.page-products .dl-tab {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 16px 18px;
  cursor: pointer;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-products .dl-tab:nth-child(2n) {
  border-right: 0;
}

.page-products .dl-tab:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.page-products .dl-tab-key {
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-products .dl-tab-name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-products .dl-tab-meta {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-products .dl-tab:hover {
  background: rgba(36, 91, 255, 0.12);
}

.page-products .dl-radio:nth-of-type(1):checked ~ .dl-tabs label[for="dl-win"],
.page-products .dl-radio:nth-of-type(2):checked ~ .dl-tabs label[for="dl-mac"],
.page-products .dl-radio:nth-of-type(3):checked ~ .dl-tabs label[for="dl-and"],
.page-products .dl-radio:nth-of-type(4):checked ~ .dl-tabs label[for="dl-ios"] {
  background: linear-gradient(180deg, rgba(36, 91, 255, 0.34), rgba(36, 91, 255, 0.06));
  box-shadow: inset 0 -2px 0 var(--cyan);
}

.page-products .dl-radio:nth-of-type(1):focus-visible ~ .dl-tabs label[for="dl-win"],
.page-products .dl-radio:nth-of-type(2):focus-visible ~ .dl-tabs label[for="dl-mac"],
.page-products .dl-radio:nth-of-type(3):focus-visible ~ .dl-tabs label[for="dl-and"],
.page-products .dl-radio:nth-of-type(4):focus-visible ~ .dl-tabs label[for="dl-ios"] {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-products .dl-panel {
  display: none;
  padding: clamp(20px, 3.4vw, 36px);
}

.page-products .dl-radio:nth-of-type(1):checked ~ .dl-panels > .dl-panel:nth-child(1),
.page-products .dl-radio:nth-of-type(2):checked ~ .dl-panels > .dl-panel:nth-child(2),
.page-products .dl-radio:nth-of-type(3):checked ~ .dl-panels > .dl-panel:nth-child(3),
.page-products .dl-radio:nth-of-type(4):checked ~ .dl-panels > .dl-panel:nth-child(4) {
  display: block;
}

.page-products .dl-panel-body {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

.page-products .dl-panel h3 {
  margin: 0 0 10px;
  font-size: clamp(19px, 2.4vw, 24px);
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-products .dl-panel p {
  margin: 0 0 16px;
  color: var(--muted);
  line-height: 1.75;
  max-width: 56ch;
}

.page-products .spec {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-products .spec-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .spec-row dt {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-products .spec-row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text);
  text-align: right;
  overflow-wrap: anywhere;
}

/* ---------- 分步资料库 ---------- */
.page-products .pp-tracks {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-products .pp-track-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--line);
}

.page-products .pp-track-key {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-products .pp-track-head h3 {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 23px);
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-products .pp-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pp-step {
  position: relative;
  padding: 16px 0 16px 48px;
  border-bottom: 1px dashed var(--line);
}

.page-products .pp-step-num {
  position: absolute;
  left: 0;
  top: 17px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-products .pp-step::after {
  content: "";
  position: absolute;
  left: 26px;
  top: 21px;
  width: 9px;
  height: 9px;
  border: 1px solid var(--line);
  transform: rotate(45deg);
}

.page-products .pp-step strong {
  display: block;
  font-size: 16px;
  color: var(--text);
  letter-spacing: -0.01em;
}

.page-products .pp-step p {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .pp-track-link {
  display: inline-block;
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(54, 224, 232, 0.35);
  padding-bottom: 3px;
}

.page-products .pp-track-link:hover,
.page-products .pp-track-link:focus-visible {
  border-bottom-color: var(--cyan);
  outline: none;
}

/* ---------- 资源类型 ---------- */
.page-products .pp-docs {
  display: grid;
  gap: 0 clamp(24px, 4vw, 56px);
  margin-top: clamp(24px, 3.6vw, 40px);
  border-top: 1px solid var(--line);
}

.page-products .pp-doc {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .pp-doc-key {
  display: block;
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: var(--cyan);
  margin-bottom: 8px;
}

.page-products .pp-doc h3 {
  margin: 0 0 8px;
  font-size: 18px;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-products .pp-doc p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .pp-doc-meta {
  margin-top: 12px !important;
  font-size: 11px !important;
  letter-spacing: 0.1em;
  color: rgba(167, 180, 208, 0.75) !important;
}

.page-products .pp-docs-foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--cobalt);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 68ch;
}

/* ---------- 下载前检查 ---------- */
.page-products .pp-check-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  margin-top: clamp(26px, 4vw, 40px);
}

.page-products .pp-hash {
  border: 1px solid var(--line);
  background: var(--pp-panel);
  padding: clamp(20px, 3vw, 28px);
}

.page-products .pp-hash-file {
  margin: 14px 0 10px;
  font-size: 12.5px;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-products .pp-hash-value {
  margin: 0 0 16px;
  padding: 14px;
  border-left: 2px solid var(--cyan);
  background: rgba(5, 7, 13, 0.7);
  font-size: 12.5px;
  line-height: 1.9;
  word-break: break-all;
  color: var(--cyan);
}

.page-products .pp-hash p.t-muted {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
}

.page-products .pp-checks {
  border-top: 1px solid var(--line);
}

.page-products .pp-check {
  border-bottom: 1px solid var(--line);
}

.page-products .pp-check summary {
  position: relative;
  display: block;
  padding: 18px 40px 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

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

.page-products .pp-check summary span {
  display: inline-block;
  min-width: 32px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-products .pp-check summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--cyan);
}

.page-products .pp-check[open] summary::after {
  content: "−";
}

.page-products .pp-check-body {
  padding: 0 0 20px;
}

.page-products .pp-check-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 62ch;
}

/* ---------- 版本记录 ---------- */
.page-products .pp-split {
  display: grid;
  gap: clamp(30px, 4.5vw, 56px);
}

.page-products .pp-timeline {
  list-style: none;
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  padding: 0 0 0 18px;
  border-left: 1px solid var(--line);
}

.page-products .pp-tl-item {
  position: relative;
  padding: 0 0 24px 4px;
}

.page-products .pp-tl-item:last-child {
  padding-bottom: 0;
}

.page-products .pp-tl-item::before {
  content: "";
  position: absolute;
  left: -22.5px;
  top: 6px;
  width: 8px;
  height: 8px;
  background: var(--cyan);
}

.page-products .pp-tl-year {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  margin-bottom: 6px;
}

.page-products .pp-tl-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 44ch;
}

.page-products .pp-side-note {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .pp-inline-link {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(54, 224, 232, 0.35);
  padding-bottom: 3px;
}

.page-products .pp-inline-link:hover,
.page-products .pp-inline-link:focus-visible {
  border-bottom-color: var(--cyan);
  outline: none;
}

/* ---------- 常见问题 ---------- */
.page-products .pp-faq {
  margin-top: clamp(24px, 3.6vw, 38px);
  border-top: 1px solid var(--line);
}

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

.page-products .pp-faq summary {
  position: relative;
  padding: 18px 40px 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

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

.page-products .pp-faq summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--cyan);
}

.page-products .pp-faq details[open] summary::after {
  content: "−";
}

.page-products .pp-faq-body {
  padding: 0 0 20px;
}

.page-products .pp-faq-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 66ch;
}

/* ---------- 收尾 ---------- */
.page-products .pp-cta {
  margin-top: var(--pp-gap);
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(36, 91, 255, 0.24), rgba(5, 7, 13, 0) 62%),
    var(--ink-800);
  display: grid;
  gap: 24px;
}

.page-products .pp-cta h2 {
  margin: 12px 0 0;
  font-size: clamp(24px, 3vw, 34px);
  letter-spacing: -0.03em;
  font-weight: 900;
  line-height: 1.15;
}

.page-products .pp-cta .t-lead {
  margin-top: 14px;
  max-width: 58ch;
}

.page-products .pp-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .pp-related {
  margin-top: clamp(40px, 6vw, 72px);
  padding-top: clamp(22px, 3vw, 32px);
  border-top: 1px solid var(--line);
}

.page-products .pp-related ul {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .pp-related a {
  font-size: 15px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-products .pp-related a:hover,
.page-products .pp-related a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  outline: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .dl-tabs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .dl-tab {
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }

  .page-products .dl-tab:nth-child(2n) {
    border-right: 1px solid var(--line);
  }

  .page-products .dl-tab:last-child {
    border-right: 0;
  }

  .page-products .dl-tab:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

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

  .page-products .pp-related ul {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px 28px;
  }
}

@media (min-width: 860px) {
  .page-products .dl-panel-body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 310px);
    align-items: start;
  }

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

@media (min-width: 960px) {
  .page-products .pp-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
  }

  .page-products .pp-check-grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
  }

  .page-products .pp-split {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }

  .page-products .pp-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-products .pp-hero-copy {
    padding-bottom: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-jump a,
  .page-products .pp-track-link,
  .page-products .pp-inline-link,
  .page-products .pp-related a,
  .page-products .dl-tab {
    transition: none;
  }
}