.page-products {
  --pp-hair: rgba(242, 232, 213, .16);
  --pp-hair-strong: rgba(242, 232, 213, .34);
  --pp-ink-line: rgba(11, 27, 43, .16);
  --pp-panel: #122A42;
  --pp-panel-2: #1D3A57;
  --pp-shadow: 0 22px 48px -30px rgba(0, 0, 0, .85);
  display: block;
}

.page-products .section {
  padding-block: clamp(2rem, 4.5vw, 3.6rem);
}

/* ---------- 顶部命令条 ---------- */
.page-products .pp-topbar {
  padding-top: clamp(1rem, 2.6vw, 1.7rem);
}

.page-products .pp-topbar .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-products .pp-topbar .crumb a {
  color: var(--paper-200);
  text-decoration: none;
  border-bottom: 1px dashed var(--pp-hair-strong);
}

.page-products .pp-topbar .crumb a:hover,
.page-products .pp-topbar .crumb a:focus-visible {
  color: var(--orange);
}

.page-products .pp-topbar .crumb [aria-current="page"] {
  color: var(--orange);
}

.page-products .pp-switch {
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  padding-bottom: .7rem;
  scrollbar-width: thin;
}

.page-products .pp-switch__item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .5rem .85rem;
  border: 1px solid var(--pp-hair-strong);
  border-radius: var(--radius);
  background: rgba(18, 42, 66, .72);
  color: var(--paper-200);
  font-size: .85rem;
  text-decoration: none;
  transition: background var(--speed), border-color var(--speed), color var(--speed);
}

.page-products .pp-switch__item .mono {
  color: var(--amber);
  font-size: .78rem;
  letter-spacing: .08em;
}

.page-products .pp-switch__item:hover,
.page-products .pp-switch__item:focus-visible {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
}

.page-products .pp-switch__item:hover .mono,
.page-products .pp-switch__item:focus-visible .mono {
  color: #fff;
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero-band {
  position: relative;
  background:
    linear-gradient(180deg, rgba(29, 58, 87, .85), rgba(11, 27, 43, .98)),
    repeating-linear-gradient(90deg, rgba(242, 232, 213, .05) 0 1px, transparent 1px 64px);
  border-bottom: 1px solid var(--pp-hair);
}

.page-products .pp-hero-band::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange) 0 12%, transparent 12% 100%);
}

.page-products .pp-hero {
  display: grid;
  gap: clamp(1.4rem, 3vw, 2.4rem);
  align-items: center;
  padding: clamp(1.6rem, 4vw, 3rem) 0 clamp(2.2rem, 5vw, 3.6rem);
}

.page-products .pp-hero__title {
  margin: .5rem 0 .9rem;
  font-size: clamp(1.85rem, 4.6vw, 3.1rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: .02em;
}

.page-products .pp-hero .lede {
  max-width: 52ch;
  color: var(--paper-200);
}

.page-products .pp-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.3rem;
}

/* ---------- 图片容器 ---------- */
.page-products .pp-fig {
  margin: 0;
  border: 1px solid var(--pp-hair-strong);
  background: linear-gradient(160deg, var(--pp-panel-2), var(--ink-900));
  box-shadow: var(--pp-shadow);
  overflow: hidden;
}

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

.page-products .pp-fig--hero { aspect-ratio: 1200 / 640; }
.page-products .pp-fig--icons { aspect-ratio: 800 / 400; margin-top: clamp(1.2rem, 3vw, 1.8rem); }
.page-products .pp-fig--tall { aspect-ratio: 1000 / 700; }
.page-products .pp-fig--arch { aspect-ratio: 1000 / 500; }
.page-products .pp-fig--steps { aspect-ratio: 900 / 500; }

.page-products .pp-fig .media-caption {
  display: block;
  padding: .65rem .85rem;
  font-size: .78rem;
  line-height: 1.5;
  color: var(--slate);
  background: var(--ink-900);
  border-top: 1px solid var(--pp-hair);
}

/* ---------- 平台卡 ---------- */
.page-products .pp-platform-grid {
  margin-top: clamp(1.2rem, 3vw, 1.9rem);
  align-items: stretch;
}

.page-products .pp-plat {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 0;
  border: 1px solid var(--pp-hair-strong);
  border-top: 4px solid var(--celadon);
  background: linear-gradient(180deg, rgba(29, 58, 87, .9), rgba(18, 42, 66, .96));
  overflow: hidden;
}

.page-products .pp-plat:nth-child(2) { border-top-color: var(--amber); }
.page-products .pp-plat:nth-child(3) { border-top-color: var(--orange); }
.page-products .pp-plat:nth-child(4) { border-top-color: var(--celadon); }

.page-products .pp-plat .card-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
}

.page-products .pp-plat__num {
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-products .pp-plat .card-title {
  margin: 0;
  font-size: 1.2rem;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.page-products .pp-plat .card-body {
  display: flex;
  flex-direction: column;
  gap: .85rem;
  flex: 1;
}

.page-products .pp-plat .card-body > p {
  margin: 0;
  font-size: .93rem;
  color: var(--paper-200);
}

.page-products .pp-plat .kv-list {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .35rem .7rem;
  margin: 0;
  font-size: .85rem;
}

.page-products .pp-plat .kv-key {
  color: var(--slate);
  font-weight: 500;
}

.page-products .pp-plat .kv-value {
  margin: 0;
  color: var(--paper-100);
}

.page-products .pp-plat .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------- iOS 双版本 ---------- */
.page-products .pp-ios {
  background: linear-gradient(180deg, rgba(29, 58, 87, .55), rgba(11, 27, 43, 0) 72%);
}

.page-products .pp-ios__grid {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
}

.page-products .pp-verstack {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-products .pp-ver {
  border: 1px solid var(--pp-hair-strong);
  border-left: 4px solid var(--celadon);
  background: rgba(18, 42, 66, .82);
  padding: 1rem 1.1rem;
}

.page-products .pp-ver--old {
  border-left-color: var(--amber);
}

.page-products .pp-ver p {
  margin: .7rem 0 0;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--paper-200);
}

.page-products .pp-ios__note {
  margin: 0;
  padding: .8rem 1rem;
  border: 1px dashed var(--pp-hair-strong);
  font-size: .85rem;
  color: var(--slate);
}

/* ---------- 表格 ---------- */
.page-products .pp-table-wrap {
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
  border: 1px solid var(--pp-hair-strong);
  background: var(--pp-panel);
  overflow-x: auto;
}

.page-products .pp-table-wrap--paper {
  margin-top: 0;
  border-color: var(--pp-ink-line);
  background: var(--paper-100);
}

.page-products .pp-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: .92rem;
}

.page-products .pp-table th,
.page-products .pp-table td {
  padding: .72rem .9rem;
  border-bottom: 1px solid var(--pp-hair);
  text-align: left;
  vertical-align: top;
}

.page-products .pp-table thead th {
  background: var(--pp-panel-2);
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--paper-200);
  white-space: nowrap;
}

.page-products .pp-table tbody th {
  color: var(--paper-100);
  font-weight: 700;
}

.page-products .pp-table tbody tr:nth-child(odd) {
  background: rgba(242, 232, 213, .04);
}

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

.page-products .pp-table--paper {
  color: var(--ink-800);
}

.page-products .pp-table--paper th,
.page-products .pp-table--paper td {
  border-bottom: 1px solid var(--pp-ink-line);
}

.page-products .pp-table--paper thead th {
  background: var(--paper-200);
  color: var(--ink-900);
}

.page-products .pp-table--paper tbody th {
  color: var(--ink-900);
}

.page-products .pp-table--paper tbody tr:nth-child(odd) {
  background: rgba(11, 27, 43, .05);
}

/* ---------- 版本归档（浅纸区） ---------- */
.page-products .pp-archive {
  background: var(--paper-100);
  color: var(--ink-900);
  border-top: 1px solid var(--pp-ink-line);
  border-bottom: 1px solid var(--pp-ink-line);
}

.page-products .pp-archive .eyebrow {
  color: var(--alert);
}

.page-products .pp-archive .section-title {
  color: var(--ink-900);
}

.page-products .pp-archive .lede {
  color: #2C4358;
}

.page-products .pp-archive__grid {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
}

.page-products .pp-archive__link {
  margin: clamp(1.2rem, 3vw, 1.6rem) 0 0;
  font-size: .92rem;
  color: #2C4358;
}

.page-products .pp-archive__link .btn {
  margin-left: .4rem;
  vertical-align: baseline;
}

.page-products .pp-archive__link .btn--quiet {
  color: var(--ink-900);
  border-bottom-color: var(--orange);
}

/* ---------- 安装步骤 ---------- */
.page-products .pp-steps__grid {
  display: grid;
  gap: clamp(1.4rem, 3vw, 2.2rem);
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
}

.page-products .pp-steps__list {
  display: grid;
  gap: clamp(.9rem, 2.4vw, 1.3rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-steps .index-item {
  position: relative;
  display: grid;
  grid-template-columns: 3.2rem minmax(0, 1fr);
  gap: 0 .9rem;
  padding: .2rem 0 .2rem 0;
}

.page-products .pp-steps .index-num {
  font-size: 1.5rem;
  line-height: 1.15;
  color: var(--orange);
  letter-spacing: .02em;
}

.page-products .pp-steps .index-item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 1.6rem;
  top: 2.5rem;
  bottom: -.8rem;
  width: 2px;
  background: linear-gradient(180deg, var(--orange), rgba(242, 107, 33, 0));
}

.page-products .pp-steps .index-text h3 {
  margin: 0 0 .35rem;
  font-size: 1.05rem;
  letter-spacing: .04em;
}

.page-products .pp-steps .index-text p {
  margin: 0;
  font-size: .93rem;
  line-height: 1.75;
  color: var(--paper-200);
}

.page-products .pp-steps .index-text .btn {
  margin: 0 .15rem;
}

/* ---------- 系统要求与校验 ---------- */
.page-products .pp-req__grid {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
  align-items: start;
}

.page-products .pp-req__grid .pp-table-wrap {
  margin-top: 0;
}

.page-products .pp-checkcard .card-body {
  display: grid;
  gap: .9rem;
}

.page-products .pp-check {
  display: grid;
  gap: .7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-check .index-item {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0 .7rem;
  align-items: start;
}

.page-products .pp-check .index-num {
  font-size: .95rem;
  color: var(--alert);
}

.page-products .pp-check .index-text p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--ink-800);
}

.page-products .pp-checkcard__note {
  margin: 0;
  padding-top: .8rem;
  border-top: 1px dashed var(--pp-ink-line);
  font-size: .85rem;
  color: #2C4358;
}

/* ---------- 常见问题 ---------- */
.page-products .pp-faq {
  margin-top: clamp(1.6rem, 4vw, 2.6rem);
}

.page-products .pp-faq__title {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  letter-spacing: .05em;
}

.page-products .pp-faq .accordion-item {
  border: 1px solid var(--pp-hair);
  border-left: 3px solid var(--amber);
  background: rgba(18, 42, 66, .6);
  margin-bottom: .6rem;
}

.page-products .pp-faq .accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: .9rem 1rem;
  background: transparent;
  border: 0;
  color: var(--paper-100);
  font-size: .96rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}

.page-products .pp-faq .accordion-trigger:hover {
  color: var(--orange);
}

.page-products .pp-faq .accordion-mark {
  font-family: var(--font-mono);
  color: var(--orange);
}

.page-products .pp-faq .accordion-panel-inner {
  padding: 0 1rem 1rem;
}

.page-products .pp-faq .accordion-panel-inner p {
  margin: 0 0 .5rem;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--paper-200);
}

.page-products .pp-faq .accordion-panel-inner p:last-child {
  margin-bottom: 0;
}

/* ---------- 末尾行动区 ---------- */
.page-products .pp-cta {
  padding-bottom: clamp(2.4rem, 5vw, 4rem);
}

.page-products .pp-cta__box {
  display: grid;
  gap: 1.2rem;
  padding: clamp(1.4rem, 3.4vw, 2.6rem);
  border: 1px solid var(--pp-hair-strong);
  border-left: 6px solid var(--orange);
  background: linear-gradient(135deg, rgba(29, 58, 87, .92), rgba(11, 27, 43, .96));
}

.page-products .pp-cta__title {
  margin: 0 0 .6rem;
  font-size: clamp(1.25rem, 2.6vw, 1.8rem);
  letter-spacing: .03em;
}

.page-products .pp-cta__text {
  margin: 0;
  max-width: 62ch;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--paper-200);
}

.page-products .pp-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

.page-products .pp-sign {
  margin: 1.3rem 0 0;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--slate);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .pp-cta__box {
    grid-template-columns: minmax(0, 1.5fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-products .pp-ios__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pp-steps__grid {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-products .pp-hero {
    grid-template-columns: minmax(0, 1.03fr) minmax(0, .97fr);
  }

  .page-products .pp-hero__fig {
    transform: translateY(1.6rem);
  }

  .page-products .pp-archive__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-products .pp-req__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .page-products .pp-steps .index-item {
    grid-template-columns: 4rem minmax(0, 1fr);
  }

  .page-products .pp-steps .index-item:not(:last-child)::after {
    left: 2rem;
  }
}

@media (max-width: 560px) {
  .page-products .pp-switch {
    gap: .4rem;
  }

  .page-products .pp-switch__item {
    padding: .45rem .7rem;
    font-size: .8rem;
  }

  .page-products .pp-table {
    min-width: 540px;
    font-size: .87rem;
  }

  .page-products .pp-table th,
  .page-products .pp-table td {
    padding: .6rem .7rem;
  }
}