.page-products {
  --pp-rail-w: 190px;
  --pp-block-gap: clamp(20px, 4vw, 56px);
  --pp-card-bg: linear-gradient(155deg, rgba(63, 27, 99, .5), rgba(10, 8, 16, .72));
  position: relative;
  display: block;
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-products .pp-crumb {
  padding-top: clamp(16px, 2.5vw, 30px);
  margin-bottom: clamp(6px, 1.4vw, 16px);
}

/* ---------- 首屏拼贴 ---------- */

.page-products .pp-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: clamp(20px, 3.5vw, 44px) 0 clamp(44px, 6vw, 88px);
}

.page-products .pp-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -14%;
  width: min(660px, 86vw);
  aspect-ratio: 1;
  background: radial-gradient(circle at 50% 50%, rgba(107, 47, 160, .55), rgba(107, 47, 160, 0) 68%);
  z-index: -1;
  pointer-events: none;
}

.page-products .pp-hero__inner {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-products .pp-hero__title {
  margin: clamp(12px, 2vw, 18px) 0 0;
  font-size: clamp(36px, 6.4vw, 80px);
  line-height: 1.03;
  letter-spacing: -.03em;
}

.page-products .pp-hero__lead {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  max-width: 46ch;
  color: var(--nv-mist);
}

.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-products .pp-stats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 3vw, 40px);
  margin: clamp(26px, 3.6vw, 44px) 0 0;
  padding: 0;
}

.page-products .pp-stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 14px;
  border-left: 2px solid var(--nv-grape);
}

.page-products .pp-stats__num {
  font-family: var(--nv-font-num);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: .06em;
  color: var(--nv-white);
}

.page-products .pp-stats__label {
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--nv-silver);
}

.page-products .nv-media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--nv-line);
  border-radius: var(--nv-radius-m);
  background: linear-gradient(150deg, rgba(63, 27, 99, .5), rgba(10, 8, 16, .82));
}

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

.page-products .pp-hero__media {
  aspect-ratio: 4 / 3;
  border-color: var(--nv-line-strong);
  border-radius: var(--nv-radius-l);
  box-shadow: 0 30px 80px rgba(107, 47, 160, .3);
}

/* ---------- 图文错位区块骨架 ---------- */

.page-products .pp-block {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
  padding: clamp(42px, 6vw, 86px) 0;
  border-top: 1px solid var(--nv-line);
}

.page-products .pp-block__rail {
  display: flex;
  flex-direction: row;
  align-items: baseline;
  gap: 14px;
}

.page-products .pp-block__index {
  font-family: var(--nv-font-num);
  font-size: clamp(28px, 4.6vw, 44px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .1em;
  color: var(--nv-grape);
}

.page-products .pp-block__label {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 28px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--nv-white);
}

.page-products .pp-block__label::after {
  content: "";
  display: block;
  width: 42px;
  height: 2px;
  margin-top: 10px;
  border-radius: var(--nv-pill);
  background: linear-gradient(90deg, var(--nv-grape), var(--nv-green));
}

.page-products .pp-block__body {
  display: grid;
  gap: clamp(18px, 2.6vw, 30px);
  min-width: 0;
}

.page-products .pp-block__lead {
  margin: 0;
  max-width: 64ch;
  color: var(--nv-mist);
}

/* ---------- 适配清单 ---------- */

.page-products .pp-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-products .pp-adapt__media {
  aspect-ratio: 3 / 2;
}

.page-products .pp-screens {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(12px, 1.8vw, 18px);
}

.page-products .pp-screen {
  padding: clamp(16px, 2.2vw, 22px);
  border: 1px solid var(--nv-line);
  border-radius: var(--nv-radius-m);
  background: var(--pp-card-bg);
  transition: transform .35s var(--nv-ease), border-color .35s var(--nv-ease), box-shadow .35s var(--nv-ease);
}

.page-products .pp-screen:hover {
  transform: translateY(-4px);
  border-color: rgba(107, 47, 160, .65);
  box-shadow: 0 18px 44px rgba(107, 47, 160, .22);
}

.page-products .pp-screen__size {
  display: inline-block;
  margin-bottom: 10px;
  padding-bottom: 4px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--nv-green);
  border-bottom: 1px solid rgba(59, 178, 115, .4);
}

.page-products .pp-screen__name {
  margin: 0 0 8px;
  font-size: clamp(17px, 1.8vw, 20px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--nv-white);
}

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

/* ---------- 栏目索引 ---------- */

.page-products .pp-index__media {
  aspect-ratio: 10 / 7;
}

.page-products .pp-cats {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 20px);
}

.page-products .pp-cat {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--nv-line);
  border-radius: var(--nv-radius-m);
  background: linear-gradient(160deg, rgba(26, 11, 46, .92), rgba(10, 8, 16, .8));
}

.page-products .pp-cat__code {
  align-self: flex-start;
}

.page-products .pp-cat h3 {
  margin: 0;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--nv-white);
}

.page-products .pp-cat p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--nv-mist);
}

.page-products .pp-cat__list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .pp-cat__list li {
  padding: 5px 12px;
  font-size: 12.5px;
  color: var(--nv-silver);
  border: 1px solid var(--nv-line-strong);
  border-radius: var(--nv-pill);
}

/* ---------- 折叠面板 ---------- */

.page-products .pp-folds {
  display: grid;
  gap: 12px;
}

.page-products .pp-fold {
  border: 1px solid var(--nv-line);
  border-radius: var(--nv-radius-m);
  background: rgba(18, 7, 31, .62);
  overflow: hidden;
  transition: border-color .3s var(--nv-ease);
}

.page-products .pp-fold[open] {
  border-color: rgba(107, 47, 160, .58);
}

.page-products .pp-fold summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: clamp(15px, 2vw, 21px) clamp(16px, 2.2vw, 24px);
  cursor: pointer;
  list-style: none;
}

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

.page-products .pp-fold summary:focus-visible {
  outline: 2px solid var(--nv-green);
  outline-offset: -3px;
}

.page-products .pp-fold__title {
  flex: 1 1 auto;
  font-size: clamp(16px, 1.8vw, 19px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--nv-white);
}

.page-products .pp-fold__hint {
  flex: 0 0 auto;
  font-size: 12.5px;
  letter-spacing: .06em;
  white-space: nowrap;
  color: var(--nv-silver);
}

.page-products .pp-fold__marker {
  position: relative;
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  border: 1px solid var(--nv-line-strong);
  border-radius: 50%;
  transition: transform .3s var(--nv-ease), border-color .3s var(--nv-ease), background-color .3s var(--nv-ease);
}

.page-products .pp-fold__marker::before,
.page-products .pp-fold__marker::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 7px;
  right: 7px;
  height: 1.5px;
  background: var(--nv-silver);
  transform: translateY(-50%);
}

.page-products .pp-fold__marker::after {
  transform: translateY(-50%) rotate(90deg);
  transition: opacity .3s var(--nv-ease);
}

.page-products .pp-fold[open] .pp-fold__marker {
  transform: rotate(180deg);
  border-color: rgba(107, 47, 160, .85);
  background: rgba(107, 47, 160, .22);
}

.page-products .pp-fold[open] .pp-fold__marker::after {
  opacity: 0;
}

.page-products .pp-fold__body {
  padding: 14px clamp(16px, 2.2vw, 24px) clamp(16px, 2.2vw, 22px);
  border-top: 1px solid var(--nv-line);
}

.page-products .pp-fold__body p {
  margin: 0;
  max-width: 72ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--nv-mist);
}

/* ---------- 三步入口 ---------- */

.page-products .pp-steps__media {
  aspect-ratio: 2 / 1;
}

.page-products .pp-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 20px);
}

.page-products .pp-step {
  position: relative;
  padding: clamp(20px, 2.4vw, 26px);
  border: 1px solid var(--nv-line);
  border-radius: var(--nv-radius-m);
  background: linear-gradient(150deg, rgba(63, 27, 99, .45), rgba(10, 8, 16, .72));
}

.page-products .pp-step::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  border-radius: var(--nv-radius-m) 0 0 var(--nv-radius-m);
  background: linear-gradient(180deg, var(--nv-grape), var(--nv-green));
  opacity: .7;
}

.page-products .pp-step__n {
  display: block;
  margin-bottom: 12px;
  font-family: var(--nv-font-num);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--nv-gold);
}

.page-products .pp-step h3 {
  margin: 0 0 8px;
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--nv-white);
}

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

/* ---------- 版本时间线 ---------- */

.page-products .pp-timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  display: grid;
  gap: clamp(20px, 2.6vw, 30px);
}

.page-products .pp-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--nv-grape), rgba(59, 178, 115, .6), rgba(212, 160, 23, .55));
}

.page-products .pp-tl {
  position: relative;
}

.page-products .pp-tl::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 6px;
  width: 15px;
  height: 15px;
  border: 2px solid var(--nv-grape);
  border-radius: 50%;
  background: var(--nv-ink);
}

.page-products .pp-tl__tag {
  display: inline-block;
  margin-bottom: 10px;
}

.page-products .pp-tl h3 {
  margin: 0 0 8px;
  font-size: clamp(17px, 1.9vw, 21px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--nv-white);
}

.page-products .pp-tl p {
  margin: 0;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--nv-mist);
}

/* ---------- 访问方式 ---------- */

.page-products .pp-access__media {
  aspect-ratio: 3 / 2;
}

.page-products .pp-devices {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(12px, 1.8vw, 18px);
}

.page-products .pp-device {
  padding: clamp(18px, 2.2vw, 24px);
  border: 1px solid var(--nv-line);
  border-top-width: 2px;
  border-radius: var(--nv-radius-m);
  background: rgba(18, 7, 31, .58);
}

.page-products .pp-device:nth-child(1) {
  border-top-color: var(--nv-grape);
}

.page-products .pp-device:nth-child(2) {
  border-top-color: var(--nv-green);
}

.page-products .pp-device:nth-child(3) {
  border-top-color: var(--nv-gold);
}

.page-products .pp-device h3 {
  margin: 0 0 10px;
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--nv-white);
}

.page-products .pp-device p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--nv-mist);
}

.page-products .pp-note {
  margin: 0;
  padding: 14px 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--nv-silver);
  border-left: 2px solid var(--nv-green);
  border-radius: 0 var(--nv-radius-s) var(--nv-radius-s) 0;
  background: rgba(31, 107, 74, .16);
}

/* ---------- 收尾 ---------- */

.page-products .pp-cta {
  padding: clamp(44px, 6vw, 84px) 0 0;
}

.page-products .pp-cta__inner {
  display: grid;
  gap: 16px;
  padding: clamp(28px, 4vw, 56px);
  border: 1px solid var(--nv-line-strong);
  border-radius: var(--nv-radius-l);
  background:
    radial-gradient(circle at 86% 10%, rgba(107, 47, 160, .5), transparent 62%),
    linear-gradient(150deg, var(--nv-deep), var(--nv-ink));
}

.page-products .pp-cta__title {
  margin: 0;
  font-size: clamp(26px, 3.6vw, 44px);
  line-height: 1.12;
  letter-spacing: -.02em;
}

.page-products .pp-cta__text {
  margin: 0;
  max-width: 60ch;
  color: var(--nv-mist);
}

.page-products .pp-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 560px) {
  .page-products .pp-hero__media {
    aspect-ratio: 14 / 9;
  }
}

@media (min-width: 620px) {
  .page-products .pp-screens {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .page-products .pp-fold__hint {
    display: none;
  }
}

@media (min-width: 700px) {
  .page-products .pp-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-products .pp-devices {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-products .pp-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .pp-block {
    grid-template-columns: var(--pp-rail-w) minmax(0, 1fr);
    gap: var(--pp-block-gap);
  }

  .page-products .pp-block__rail {
    position: sticky;
    top: 104px;
    align-self: start;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

@media (min-width: 960px) {
  .page-products .pp-hero__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: clamp(32px, 5vw, 72px);
  }
}

@media (min-width: 1080px) {
  .page-products .pp-screens {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pp-cats {
    padding-bottom: 24px;
  }

  .page-products .pp-cats > :nth-child(even) {
    transform: translateY(24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-screen,
  .page-products .pp-fold,
  .page-products .pp-fold__marker,
  .page-products .pp-fold__marker::after {
    transition: none;
  }

  .page-products .pp-screen:hover {
    transform: none;
  }

  .page-products .pp-cats > :nth-child(even) {
    transform: none;
  }
}