.page-products {
  display: block;
  background: var(--c-void);
  color: var(--c-ivory);
  overflow-x: hidden;
}

.page-products .pc-crumbs-row {
  padding-top: clamp(18px, 3vw, 30px);
}

.page-products .pc-lede {
  max-width: 62ch;
  margin: 14px 0 0;
  font-size: 1.02rem;
  line-height: 1.78;
  color: var(--c-mist);
}

.page-products .pc-inline-link {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, .5);
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-products .pc-inline-link:hover,
.page-products .pc-inline-link:focus-visible {
  color: var(--c-lilac);
  border-color: var(--c-lilac);
}

/* ---------- A0 首屏 ---------- */

.page-products .pc-hero {
  position: relative;
  padding: clamp(26px, 5vw, 54px) 0 clamp(30px, 5vw, 60px);
  border-bottom: 1px solid var(--c-line-soft);
}

.page-products .pc-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
  align-items: center;
}

.page-products .pc-hero__kicker {
  margin: 0;
  font-family: var(--f-index);
  font-size: 12.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-products .pc-hero h1 {
  margin: 14px 0 0;
  font-family: var(--f-display);
  font-weight: 300;
  font-size: clamp(29px, 6vw, 56px);
  line-height: 1.1;
  letter-spacing: .015em;
  text-shadow: 0 0 26px rgba(168, 85, 247, .38);
}

.page-products .pc-hero__lead {
  max-width: 60ch;
  margin: 18px 0 0;
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--c-mist);
}

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

.page-products .pc-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pc-hero__facts li {
  font-size: .86rem;
  line-height: 1.5;
  color: var(--c-mist);
  max-width: 22ch;
}

.page-products .pc-hero__facts li span {
  display: block;
  font-family: var(--f-index);
  font-size: 1.12rem;
  letter-spacing: .04em;
  color: var(--c-gold);
}

.page-products .pc-hero__visual {
  position: relative;
  margin-bottom: 20px;
  padding: clamp(22px, 4vw, 34px);
  border: 2px solid var(--c-line);
  background:
    radial-gradient(circle at 28% 16%, rgba(168, 85, 247, .24), transparent 62%),
    linear-gradient(158deg, var(--c-deep), rgba(7, 11, 24, .72));
  box-shadow: var(--hard-cyan);
}

.page-products .pc-hero__visual::after {
  content: "";
  position: absolute;
  right: -6px;
  bottom: -14px;
  width: 56%;
  height: 12px;
  background: linear-gradient(90deg, var(--c-violet), var(--c-cyan));
  transform: skewX(-30deg);
}

.page-products .pc-hero__svg {
  display: block;
  width: 100%;
  max-width: 250px;
  height: auto;
  margin: 0 auto;
  color: var(--c-lilac);
}

/* ---------- A1 双端对照 ---------- */

.page-products .pc-duo {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-products .pc-duo__panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: clamp(20px, 3.4vw, 32px);
  border: 2px solid var(--c-line);
  background: var(--c-deep);
}

.page-products .pc-duo__panel--android {
  box-shadow: var(--hard-cyan);
}

.page-products .pc-duo__panel--ios {
  box-shadow: var(--hard-violet);
}

.page-products .pc-duo__tag {
  margin: 0;
  font-family: var(--f-index);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-mist);
}

.page-products .pc-duo__panel--android .pc-duo__tag {
  color: var(--c-cyan);
}

.page-products .pc-duo__panel--ios .pc-duo__tag {
  color: var(--c-lilac);
}

.page-products .pc-duo__title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 300;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.15;
}

.page-products .pc-spec {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pc-spec li {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--c-line-soft);
  font-size: .94rem;
  line-height: 1.65;
}

.page-products .pc-spec__k {
  padding-top: 3px;
  font-family: var(--f-index);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-mist);
}

.page-products .pc-spec__v {
  color: var(--c-ivory);
}

.page-products .pc-duo__panel .arc-btn {
  margin-top: auto;
  align-self: flex-start;
}

/* ---------- 宽幅图 ---------- */

.page-products .pc-bandshot {
  margin: clamp(24px, 4vw, 40px) 0 0;
  border: 2px solid var(--c-line);
  background: var(--c-deep);
  box-shadow: var(--hard-violet);
}

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

.page-products .pc-bandshot figcaption,
.page-products .pc-cat-top figcaption {
  padding: 11px 16px;
  border-top: 1px solid var(--c-line-soft);
  font-family: var(--f-index);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-mist);
}

.page-products .pc-bandshot--ver {
  margin-bottom: clamp(22px, 3vw, 30px);
}

/* ---------- B1 / B2 安装步骤 ---------- */

.page-products .pc-steps-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-products .pc-shot {
  margin: 0 auto;
  max-width: 340px;
  border: 2px solid var(--c-line);
  background: var(--c-deep);
  box-shadow: var(--hard-cyan);
}

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

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

.page-products .pc-step {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--c-line-soft);
}

.page-products .pc-step:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-products .pc-step__num {
  display: grid;
  place-items: center;
  width: 42px;
  height: 30px;
  border: 2px solid var(--c-line);
  font-family: var(--f-index);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--c-cyan);
}

.page-products .pc-step__title {
  margin: 0 0 6px;
  font-size: 1.06rem;
  line-height: 1.4;
  color: var(--c-ivory);
}

.page-products .pc-step__text {
  margin: 0;
  font-size: .95rem;
  line-height: 1.76;
  color: var(--c-mist);
}

/* ---------- C1 内容目录 ---------- */

.page-products .pc-cat-top {
  margin: clamp(24px, 4vw, 38px) 0 0;
  border: 2px solid var(--c-line);
  background: var(--c-deep);
  box-shadow: var(--hard-violet);
}

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

.page-products .pc-filters {
  margin-top: clamp(22px, 3vw, 30px);
}

.page-products .arc-chip {
  font-family: var(--f-index);
  font-size: 12px;
  letter-spacing: .12em;
  transition: color var(--t-fast), border-color var(--t-fast), background-color var(--t-fast), box-shadow var(--t-fast);
}

.page-products .arc-chip[aria-pressed="true"] {
  color: var(--c-ivory);
  border-color: var(--c-violet);
  background: rgba(168, 85, 247, .18);
  box-shadow: 2px 2px 0 0 var(--c-violet);
}

.page-products .pc-cat {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-products .pc-cat__card {
  transition: transform var(--t-mid), border-color var(--t-mid), box-shadow var(--t-mid);
}

.page-products .pc-cat__card:hover,
.page-products .pc-cat__card:focus-within {
  transform: translateY(-2px);
  border-color: var(--c-lilac);
}

.page-products .pc-cat__card[hidden] {
  display: none;
}

/* ---------- D1 / E1 折叠列表 ---------- */

.page-products .pc-ver,
.page-products .pc-faq {
  display: grid;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .pc-fold {
  border: 2px solid var(--c-line);
  background: var(--c-deep);
  transition: border-color var(--t-mid);
}

.page-products .pc-fold:hover {
  border-color: rgba(196, 181, 253, .6);
}

.page-products .pc-fold__btn {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  width: 100%;
  padding: 16px 18px;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: inherit;
  font-family: inherit;
}

.page-products .pc-fold__num {
  min-width: 4.2ch;
  font-family: var(--f-index);
  font-size: 1.36rem;
  letter-spacing: .04em;
  color: var(--c-gold);
}

.page-products .pc-fold__label {
  flex: 1 1 240px;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--c-ivory);
}

.page-products .pc-fold__meta {
  font-family: var(--f-index);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-mist);
}

.page-products .pc-fold__panel {
  padding: 0 18px 18px;
  border-top: 1px dashed var(--c-line-soft);
}

.page-products .pc-fold__panel ul {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pc-fold__panel li {
  display: grid;
  grid-template-columns: 14px 1fr;
  gap: 10px;
  font-size: .95rem;
  line-height: 1.74;
  color: var(--c-mist);
}

.page-products .pc-fold__panel li::before {
  content: "▸";
  color: var(--c-cyan);
  line-height: 1.74;
}

.page-products .pc-help-line {
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--c-red);
  background: rgba(255, 59, 92, .07);
  font-size: .96rem;
  line-height: 1.8;
  color: var(--c-mist);
}

@media (min-width: 680px) {
  .page-products .pc-cat {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 840px) {
  .page-products .pc-duo {
    grid-template-columns: 1fr 1fr;
    gap: 0;
  }

  .page-products .pc-duo__panel--android {
    border-right: none;
    box-shadow: inset 0 -3px 0 0 var(--c-cyan);
  }

  .page-products .pc-duo__panel--ios {
    border-left: none;
    box-shadow: inset 0 -3px 0 0 var(--c-violet);
  }

  .page-products .pc-duo::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 5%;
    bottom: 5%;
    width: 2px;
    margin-left: -1px;
    background: linear-gradient(180deg, transparent, var(--c-violet), var(--c-cyan), transparent);
    z-index: 1;
  }
}

@media (min-width: 900px) {
  .page-products .pc-hero__inner {
    grid-template-columns: 7fr 5fr;
  }

  .page-products .pc-steps-block {
    grid-template-columns: 5fr 7fr;
  }

  .page-products .pc-steps-block--flip {
    grid-template-columns: 7fr 5fr;
  }

  .page-products .pc-steps-block--flip .pc-steps-block__media,
  .page-products .pc-steps-block--flip .pc-shot {
    order: 2;
  }

  .page-products .pc-steps-block--flip .pc-steps {
    order: 1;
  }

  .page-products .pc-shot {
    margin: 0;
    max-width: 100%;
  }
}

@media (min-width: 1020px) {
  .page-products .pc-cat {
    grid-template-columns: repeat(6, 1fr);
  }

  .page-products .pc-cat > *:nth-child(4n + 1) {
    grid-column: span 3;
  }

  .page-products .pc-cat > *:nth-child(4n + 2) {
    grid-column: span 3;
  }

  .page-products .pc-cat > *:nth-child(4n + 3) {
    grid-column: span 2;
  }

  .page-products .pc-cat > *:nth-child(4n + 4) {
    grid-column: span 4;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pc-cat__card,
  .page-products .pc-fold,
  .page-products .arc-chip,
  .page-products .pc-inline-link {
    transition: none;
  }

  .page-products .pc-cat__card:hover,
  .page-products .pc-cat__card:focus-within {
    transform: none;
  }
}