.page-products {
  position: relative;
  display: block;
  color: var(--paper);
  padding-bottom: clamp(40px, 7vw, 88px);
}

/* ---------- 首屏 ---------- */

.page-products .pd-hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(34px, 6vw, 76px) clamp(18px, 3vw, 32px);
}

.page-products .pd-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -22% 0 auto 0;
  height: 118%;
  background:
    radial-gradient(72% 58% at 6% 22%, rgba(47, 211, 200, 0.15), transparent 70%),
    radial-gradient(58% 66% at 92% 2%, rgba(182, 240, 58, 0.13), transparent 70%),
    repeating-linear-gradient(90deg, rgba(195, 203, 207, 0.07) 0 1px, transparent 1px 54px);
  pointer-events: none;
}

.page-products .pd-hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cold);
}

.page-products .pd-hero__dot {
  width: 8px;
  height: 8px;
  background: var(--neon);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  flex: none;
}

.page-products .pd-hero__title {
  margin: 16px 0 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 6.4vw, 64px);
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.page-products .pd-hero__lede {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: 68ch;
  font-size: clamp(16px, 2vw, 18px);
  line-height: 1.78;
  color: var(--cold);
}

.page-products .pd-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding-left: 14px;
  border-left: 2px solid var(--moss);
  font-size: 14px;
  line-height: 1.6;
  color: var(--cold);
}

.page-products .pd-hero__num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--neon);
}

/* ---------- 通用章节 ---------- */

.page-products .pd-section {
  padding-block: clamp(34px, 6vw, 72px) 0;
}

.page-products .pd-head {
  max-width: 74ch;
}

.page-products .pd-head__kicker {
  margin: 0 0 12px;
}

.page-products .pd-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 4vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.015em;
}

.page-products .pd-head__text {
  margin: 14px 0 0;
  max-width: 68ch;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.78;
  color: var(--cold);
}

/* ---------- 版本对照 ---------- */

.page-products .pd-ver {
  position: relative;
  margin-top: clamp(22px, 3.5vw, 36px);
}

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

.page-products .pd-ver__tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}

.page-products .pd-ver__tab {
  flex: 1 1 auto;
  text-align: center;
  cursor: pointer;
  padding: 11px 14px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cold);
  background: var(--stand);
  border: 1px solid var(--line);
  clip-path: var(--cut-sm);
  transition: color 0.22s var(--ease), background 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-products .pd-ver__tab:hover {
  color: var(--paper);
  border-color: var(--rock);
}

.page-products .pd-ver__radio:focus-visible ~ .pd-ver__tabs {
  outline: 2px solid var(--neon);
  outline-offset: 4px;
}

.page-products .pd-ver__radio--android:checked ~ .pd-ver__tabs .pd-ver__tab--android {
  color: var(--accent-ink);
  background: var(--neon);
  border-color: var(--neon);
}

.page-products .pd-ver__radio--stable:checked ~ .pd-ver__tabs .pd-ver__tab--stable {
  color: var(--deep);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-products .pd-ver__pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-products .pd-ver-card {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  background: linear-gradient(160deg, var(--stand), var(--deep-2));
  border: 1px solid var(--line);
  transition: border-color 0.25s var(--ease), opacity 0.25s var(--ease);
}

.page-products .pd-ver-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.32s var(--ease);
}

.page-products .pd-ver-card--android {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-products .pd-ver-card--android::before {
  background: var(--neon);
}

.page-products .pd-ver-card--stable {
  clip-path: polygon(24px 0, 100% 0, 100% 100%, 0 100%, 0 24px);
}

.page-products .pd-ver-card--stable::before {
  background: var(--cyan);
}

.page-products .pd-ver-card:hover::before {
  transform: scaleX(1);
}

.page-products .pd-ver__radio--android:checked ~ .pd-ver__pair .pd-ver-card--android {
  border-color: rgba(182, 240, 58, 0.75);
}

.page-products .pd-ver__radio--android:checked ~ .pd-ver__pair .pd-ver-card--android::before {
  transform: scaleX(1);
}

.page-products .pd-ver__radio--android:checked ~ .pd-ver__pair .pd-ver-card--stable {
  opacity: 0.62;
}

.page-products .pd-ver__radio--stable:checked ~ .pd-ver__pair .pd-ver-card--stable {
  border-color: rgba(47, 211, 200, 0.75);
}

.page-products .pd-ver__radio--stable:checked ~ .pd-ver__pair .pd-ver-card--stable::before {
  transform: scaleX(1);
}

.page-products .pd-ver__radio--stable:checked ~ .pd-ver__pair .pd-ver-card--android {
  opacity: 0.62;
}

.page-products .pd-ver-card__tag {
  display: inline-block;
  margin: 0;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--accent-ink);
  background: var(--moss);
}

.page-products .pd-ver-card--stable .pd-ver-card__tag {
  color: var(--deep);
  background: var(--cold);
}

.page-products .pd-ver-card__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 27px);
  letter-spacing: -0.01em;
}

.page-products .pd-ver-card__text {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--cold);
}

.page-products .pd-ver-card__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-products .pd-ver-card__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--paper);
}

.page-products .pd-ver-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 10px;
  height: 2px;
  background: var(--rock);
}

.page-products .pd-ver-card--android .pd-ver-card__list li::before {
  background: var(--neon);
}

.page-products .pd-ver-card--stable .pd-ver-card__list li::before {
  background: var(--cyan);
}

/* ---------- 图片 ---------- */

.page-products .pd-fig {
  margin: clamp(18px, 3vw, 28px) 0 0;
}

.page-products .pd-fig--hero {
  margin-top: clamp(22px, 3.5vw, 36px);
}

.page-products .pd-fig__media {
  overflow: hidden;
  background: var(--stand);
  border: 1px solid var(--line);
  clip-path: var(--cut);
}

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

.page-products .pd-fig__cap {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.72;
  letter-spacing: 0.02em;
  color: var(--rock);
}

/* ---------- 功能数据带 ---------- */

.page-products .pd-flow {
  position: relative;
  margin-top: clamp(24px, 4vw, 40px);
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-products .pd-flow__step {
  position: relative;
  padding-left: 30px;
  border-left: 1px solid var(--line-soft);
}

.page-products .pd-flow__step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 8px;
  width: 9px;
  height: 9px;
  background: var(--deep);
  border: 2px solid var(--rock);
  transform: rotate(45deg);
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-products .pd-flow__step.is-in::before,
.page-products .pd-flow__step:focus-within::before {
  background: var(--neon);
  border-color: var(--neon);
}

.page-products .pd-flow__step.is-in {
  border-left-color: rgba(182, 240, 58, 0.42);
}

.page-products .pd-flow__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}

.page-products .pd-flow__idx {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--clay);
}

.page-products .pd-flow__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.22;
  letter-spacing: -0.012em;
}

.page-products .pd-flow__body {
  margin-top: 12px;
}

.page-products .pd-flow__body > p {
  margin: 0;
  max-width: 70ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cold);
}

/* ---------- 要点列表 ---------- */

.page-products .pd-points {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-products .pd-points--tight {
  margin-top: 14px;
}

.page-products .pd-points li {
  position: relative;
  padding: 11px 14px 11px 16px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--cold);
  background: rgba(16, 46, 73, 0.5);
  border-left: 2px solid var(--moss);
  clip-path: var(--cut-sm);
}

.page-products .pd-points li strong {
  color: var(--paper);
  font-weight: 700;
}

/* ---------- 排名四种排序 ---------- */

.page-products .pd-sort {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 18px;
}

.page-products .pd-sort__item {
  padding: 16px 16px 18px;
  background: var(--deep-2);
  border: 1px solid var(--line-soft);
  clip-path: var(--cut-sm);
  transition: border-color 0.25s var(--ease);
}

.page-products .pd-sort__item:hover {
  border-color: rgba(182, 240, 58, 0.5);
}

.page-products .pd-sort__glyph {
  display: block;
  height: 32px;
  color: var(--neon);
}

.page-products .pd-sort__item:nth-child(2) .pd-sort__glyph {
  color: var(--amber);
}

.page-products .pd-sort__item:nth-child(3) .pd-sort__glyph {
  color: var(--cyan);
}

.page-products .pd-sort__item:nth-child(4) .pd-sort__glyph {
  color: var(--cold);
}

.page-products .pd-sort__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.005em;
}

.page-products .pd-sort__text {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--cold);
}

/* ---------- 费用票据 ---------- */

.page-products .pd-ticket {
  margin-top: 18px;
  padding: 18px clamp(16px, 2.6vw, 24px) 20px;
  background: linear-gradient(140deg, rgba(255, 122, 42, 0.17), rgba(255, 122, 42, 0.04));
  border: 1px solid rgba(255, 122, 42, 0.5);
  border-left: 4px solid var(--amber);
  clip-path: var(--cut-sm);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-products .pd-ticket:hover,
.page-products .pd-ticket:focus-within {
  border-color: rgba(255, 122, 42, 0.85);
  background: linear-gradient(140deg, rgba(255, 122, 42, 0.24), rgba(255, 122, 42, 0.07));
}

.page-products .pd-ticket__kicker {
  margin: 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-products .pd-ticket__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.4vw, 22px);
}

.page-products .pd-ticket__list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-ticket__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 16px;
  padding: 11px 0;
  border-top: 1px dashed rgba(255, 122, 42, 0.4);
  font-size: 14px;
  line-height: 1.66;
}

.page-products .pd-ticket__k {
  color: var(--paper);
  font-weight: 700;
}

.page-products .pd-ticket__v {
  color: var(--cold);
  font-size: 13.5px;
}

.page-products .pd-ticket__hint {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 122, 42, 0.28);
  font-size: 13px;
  line-height: 1.72;
  color: var(--cold);
}

/* ---------- 导出区 ---------- */

.page-products .pd-export {
  margin-top: 18px;
  padding: clamp(14px, 2.4vw, 20px);
  background: var(--deep-2);
  border: 1px solid var(--line-soft);
  clip-path: var(--cut-sm);
}

.page-products .pd-export__viz {
  height: 76px;
  border: 1px solid var(--line-soft);
  background-color: var(--deep);
  background-image:
    linear-gradient(90deg, rgba(92, 103, 107, 0.35) 1px, transparent 1px),
    linear-gradient(0deg, rgba(92, 103, 107, 0.35) 1px, transparent 1px);
  background-size: 17px 17px;
  background-position: 0 0;
  animation: pd-export-flow 7s linear infinite;
  clip-path: var(--cut-sm);
}

.page-products .pd-export:hover .pd-export__viz,
.page-products .pd-export:focus-within .pd-export__viz {
  animation-direction: reverse;
}

@keyframes pd-export-flow {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 17px 0;
  }
}

/* ---------- 安装区块（纸面收尾） ---------- */

.page-products .pd-paper {
  padding: clamp(22px, 4vw, 44px);
  background: var(--paper);
  color: var(--deep);
  clip-path: var(--cut);
}

.page-products .pd-paper .pd-head__title {
  color: var(--deep);
}

.page-products .pd-paper__label {
  display: inline-block;
  padding: 5px 11px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--paper);
  background: var(--moss);
}

.page-products .pd-spec {
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid rgba(8, 25, 43, 0.18);
}

.page-products .pd-spec li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 20px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(8, 25, 43, 0.18);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-products .pd-spec__k {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--deep);
}

.page-products .pd-spec__v {
  color: #3d4a4f;
}

.page-products .pd-spec__n {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--clay);
}

/* ---------- 选版本建议 ---------- */

.page-products .pd-advice {
  margin-top: clamp(22px, 3.5vw, 34px);
}

.page-products .pd-advice__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.6vw, 24px);
  color: var(--deep);
}

.page-products .pd-advice__list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  counter-reset: pd-advice;
}

.page-products .pd-advice__list li {
  counter-increment: pd-advice;
  position: relative;
  padding: 14px 16px 14px 46px;
  background: rgba(8, 25, 43, 0.05);
  border-left: 3px solid var(--clay);
}

.page-products .pd-advice__list li::before {
  content: counter(pd-advice, decimal-leading-zero);
  position: absolute;
  left: 14px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--clay);
}

.page-products .pd-advice__list strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--deep);
}

.page-products .pd-advice__list span {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.75;
  color: #3d4a4f;
}

/* ---------- 下一步 ---------- */

.page-products .pd-next {
  margin-top: clamp(24px, 4vw, 38px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 2px solid rgba(8, 25, 43, 0.16);
}

.page-products .pd-next__text {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.8;
  color: #3d4a4f;
}

.page-products .pd-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.page-products .pd-next__foot {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: #5c676b;
}

.page-products .pd-next__foot a {
  color: var(--clay);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 平板及以上 ---------- */

@media (min-width: 640px) {
  .page-products .pd-ver__pair {
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }

  .page-products .pd-sort {
    grid-template-columns: 1fr 1fr;
  }

  .page-products .pd-spec {
    grid-template-columns: 1fr 1fr;
    column-gap: clamp(24px, 4vw, 48px);
  }

  .page-products .pd-advice__list {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }
}

/* ---------- 桌面 ---------- */

@media (min-width: 960px) {
  .page-products .pd-hero {
    padding-block: clamp(48px, 6vw, 88px) clamp(26px, 3vw, 40px);
  }

  .page-products .pd-flow {
    gap: clamp(26px, 3.4vw, 40px);
  }

  .page-products .pd-flow__step {
    display: grid;
    grid-template-columns: minmax(0, 236px) minmax(0, 1fr);
    column-gap: clamp(28px, 4vw, 60px);
    padding-left: 44px;
  }

  .page-products .pd-flow__step::before {
    top: 10px;
  }

  .page-products .pd-flow__head {
    display: block;
  }

  .page-products .pd-flow__idx {
    display: block;
    margin-bottom: 8px;
  }

  .page-products .pd-flow__body {
    margin-top: 0;
    min-width: 0;
  }

  .page-products .pd-ver__tabs {
    justify-content: flex-start;
    gap: 10px;
  }

  .page-products .pd-ver__tab {
    flex: 0 0 auto;
    min-width: 168px;
    padding: 12px 22px;
    font-size: 14px;
  }

  .page-products .pd-sort {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ---------- 降级动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-export__viz {
    animation: none;
  }

  .page-products .pd-ver-card::before,
  .page-products .pd-flow__step::before,
  .page-products .pd-ver-card,
  .page-products .pd-ticket,
  .page-products .pd-sort__item {
    transition: none;
  }
}