.page-products {
  --ph-line: rgba(18, 224, 192, 0.22);
  --ph-line-soft: rgba(18, 224, 192, 0.1);
  --ph-shadow: 0 0 0 1px rgba(0, 0, 0, 0.6), var(--sx) var(--sy) 0 0 rgba(0, 0, 0, 0.5);
  background: var(--ink);
  color: var(--paper);
}

.page-products .breadcrumb {
  padding: 20px 0 4px;
  font-size: 0.86rem;
  color: var(--fog);
}

.page-products .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 首屏：对角切分 ---------- */
.page-products .ph-hero {
  position: relative;
  padding: 30px 0 62px;
  overflow: hidden;
}

.page-products .ph-hero::before {
  content: "";
  position: absolute;
  inset: -10% -5% auto -5%;
  height: 130%;
  background:
    linear-gradient(135deg, transparent 44%, rgba(123, 77, 255, 0.16) 44%, rgba(123, 77, 255, 0.16) 58%, transparent 58%),
    linear-gradient(45deg, transparent 62%, rgba(212, 175, 55, 0.09) 62%, rgba(212, 175, 55, 0.09) 74%, transparent 74%);
  pointer-events: none;
}

.page-products .ph-hero__grid {
  position: relative;
  display: grid;
  gap: 30px;
}

.page-products .ph-hero__copy h1 {
  margin: 14px 0 16px;
  font-family: var(--serif);
  font-size: clamp(1.85rem, 5.6vw, 3.05rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.01em;
  background: linear-gradient(170deg, var(--gold-hi) 8%, var(--gold) 82%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-stroke: 1px rgba(18, 224, 192, 0.35);
}

.page-products .ph-lede {
  max-width: 34em;
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--paper);
}

.page-products .ph-flags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .ph-flags .num {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.page-products .ph-hero__figure {
  margin: 0;
}

.page-products .ph-hero__figure img,
.page-products .ph-wide-figure img,
.page-products .ph-band-figure img,
.page-products .ph-rooms__figure img,
.page-products .ph-version__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-products .ph-hero__figure .media-frame {
  border: var(--edge) solid var(--layer);
  box-shadow: var(--ph-shadow);
}

/* ---------- 区块骨架 ---------- */
.page-products .ph-section {
  padding: 54px 0;
}

.page-products .ph-section--install {
  background: var(--layer);
  border-top: 1px solid var(--ph-line-soft);
  border-bottom: 1px solid var(--ph-line-soft);
}

.page-products .ph-head {
  max-width: 42em;
  margin-bottom: 30px;
}

.page-products .ph-head h2 {
  margin: 12px 0 12px;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3.6vw, 2.15rem);
  font-weight: 900;
  line-height: 1.25;
  color: var(--paper);
}

.page-products .ph-head p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--fog);
}

.page-products .ph-section .section-label {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------- 方式对照 ---------- */
.page-products .ph-compare {
  display: grid;
  gap: 26px;
}

.page-products .ph-compare__card {
  position: relative;
  padding: 24px 22px 22px;
  border: var(--edge) solid var(--tier, var(--layer));
  border-color: var(--layer);
  box-shadow: var(--ph-shadow);
}

.page-products .ph-compare__card .panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.page-products .ph-compare__card .panel__title {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.28rem;
  font-weight: 900;
  color: var(--gold);
}

.page-products .ph-compare__text {
  margin: 0 0 6px;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--paper);
}

.page-products .ph-compare__card--offset {
  border-color: var(--gold);
}

.page-products .spec-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ph-line-soft);
}

.page-products .spec-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--ph-line-soft);
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-products .spec-list .k {
  flex: 0 0 auto;
  color: var(--fog);
}

.page-products .spec-list .v {
  text-align: right;
  color: var(--paper);
}

.page-products .ph-wide-figure {
  margin: 34px 0 0;
}

.page-products .ph-wide-figure .media-frame {
  border: var(--edge) solid var(--layer);
  box-shadow: var(--ph-shadow);
}

.page-products .ph-wide-figure figcaption,
.page-products .ph-rooms__figure figcaption,
.page-products .ph-version__figure figcaption {
  margin-top: 12px;
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--fog);
}

/* ---------- 四步流程 ---------- */
.page-products .ph-band-figure {
  margin: 0 0 34px;
}

.page-products .ph-band-figure .media-frame {
  border: var(--edge) solid rgba(123, 77, 255, 0.5);
  box-shadow: var(--ph-shadow);
}

.page-products .step-flow {
  display: grid;
  gap: 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .step-flow__item {
  position: relative;
  padding: 24px 20px 22px;
  background: var(--table);
  border: var(--edge) solid var(--layer);
  box-shadow: var(--ph-shadow);
}

.page-products .step-flow__idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  background: rgba(18, 224, 192, 0.08);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-products .step-flow__title {
  margin: 14px 0 8px;
  font-family: var(--serif);
  font-size: 1.14rem;
  font-weight: 900;
  color: var(--gold-hi);
}

.page-products .step-flow__text {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--paper);
}

.page-products .step-flow__more {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--ph-line);
  font-size: 0.87rem;
  color: var(--fog);
}

.page-products .step-flow__more summary {
  cursor: pointer;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  list-style: none;
}

.page-products .step-flow__more summary::-webkit-details-marker {
  display: none;
}

.page-products .step-flow__more summary::after {
  content: " ＋";
}

.page-products .step-flow__more[open] summary::after {
  content: " －";
}

.page-products .step-flow__more p {
  margin: 10px 0 0;
  line-height: 1.75;
  color: var(--paper);
}

/* ---------- 房间入口 ---------- */
.page-products .ph-section--rooms {
  background: linear-gradient(180deg, var(--ink) 0%, rgba(123, 77, 255, 0.14) 55%, var(--ink) 100%);
}

.page-products .ph-rooms__grid {
  display: grid;
  gap: 34px;
}

.page-products .room-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ph-line);
}

.page-products .room-list__item {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 14px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid var(--ph-line-soft);
}

.page-products .room-list__num {
  font-family: var(--mono);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--gold);
  border-bottom: 1px solid var(--cyan);
  justify-self: start;
  padding-bottom: 1px;
}

.page-products .room-list__text {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--paper);
}

.page-products .ph-actions {
  margin: 24px 0 0;
}

.page-products .ph-rooms__figure {
  margin: 0;
}

.page-products .ph-rooms__figure .media-frame {
  border: var(--edge) solid var(--violet);
  box-shadow: var(--ph-shadow);
}

/* ---------- 设备要求表 ---------- */
.page-products .table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: var(--edge) solid var(--layer);
  box-shadow: var(--ph-shadow);
}

.page-products .spec-table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.page-products .spec-table thead th {
  padding: 14px 16px;
  background: var(--table);
  border-bottom: 2px solid var(--gold);
  color: var(--gold);
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: left;
  white-space: nowrap;
}

.page-products .spec-table tbody th {
  padding: 13px 16px;
  color: var(--gold-hi);
  font-weight: 500;
  text-align: left;
  white-space: nowrap;
}

.page-products .spec-table tbody td {
  padding: 13px 16px;
  color: var(--paper);
  border-bottom: 1px solid var(--ph-line-soft);
}

.page-products .spec-table tbody tr:nth-child(odd) {
  background: var(--layer);
}

.page-products .spec-table tbody tr:nth-child(even) {
  background: var(--table);
}

/* ---------- 版本标记 ---------- */
.page-products .ph-version__grid {
  display: grid;
  gap: 32px;
}

.page-products .ph-version__body h2 {
  margin: 12px 0 14px;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3.6vw, 2.15rem);
  font-weight: 900;
  color: var(--paper);
}

.page-products .ph-version__body .section-label {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-products .ph-version__body p {
  max-width: 34em;
  margin: 0 0 14px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--paper);
}

.page-products .version-board {
  display: grid;
  gap: 12px;
  margin: 22px 0 4px;
}

.page-products .version-chip {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 14px;
  align-items: start;
  padding: 14px 16px;
  background: var(--table);
  border: 2px solid var(--layer);
  border-left: 4px solid var(--red);
  outline: none;
  transition: border-color 160ms ease, transform 160ms ease;
}

.page-products .version-chip:hover,
.page-products .version-chip:focus-visible {
  border-left-color: var(--cyan);
  transform: translateX(4px);
}

.page-products .version-chip__tag {
  display: inline-block;
  padding: 4px 8px;
  background: var(--red);
  color: var(--gold-hi);
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-align: center;
}

.page-products .version-chip__body {
  display: grid;
  gap: 4px;
}

.page-products .version-chip__date {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--violet);
}

.page-products .version-chip__note {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--paper);
}

.page-products .ph-version__figure {
  margin: 0;
}

.page-products .ph-version__figure .media-frame {
  border: var(--edge) solid var(--violet);
  box-shadow: var(--ph-shadow);
}

/* ---------- 常见障碍 ---------- */
.page-products .ph-section--trouble {
  background: var(--layer);
  border-top: 1px solid var(--ph-line-soft);
}

.page-products .trouble-grid {
  display: grid;
  gap: 22px;
}

.page-products .trouble-card {
  position: relative;
  padding: 26px 22px 20px;
  border: var(--edge) solid var(--table);
  box-shadow: var(--ph-shadow);
}

.page-products .trouble-card__idx {
  position: absolute;
  top: -14px;
  left: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--violet);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 700;
}

.page-products .trouble-card__title {
  margin: 6px 0 10px;
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--gold-hi);
}

.page-products .trouble-card__text {
  margin: 0 0 14px;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--paper);
}

.page-products .trouble-card__link {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--ph-line-soft);
  font-size: 0.9rem;
}

.page-products .trouble-card__link a {
  color: var(--cyan);
}

.page-products .ph-closing {
  margin-top: 38px;
  padding: 26px 22px;
  background: var(--table);
  border: var(--edge) solid var(--gold);
  box-shadow: var(--ph-shadow);
}

.page-products .ph-closing p {
  max-width: 38em;
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--paper);
}

.page-products .ph-closing__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px !important;
}

/* ---------- 交互态 ---------- */
.page-products a {
  overflow-wrap: anywhere;
}

.page-products a:focus-visible,
.page-products .version-chip:focus-visible,
.page-products .step-flow__more summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-products .ph-section {
    padding: 66px 0;
  }

  .page-products .ph-hero {
    padding: 44px 0 78px;
  }

  .page-products .ph-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
    align-items: start;
  }

  .page-products .ph-compare__card--offset {
    margin-top: 34px;
  }

  .page-products .step-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .page-products .trouble-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-products .version-chip {
    grid-template-columns: 86px 1fr;
  }
}

@media (min-width: 980px) {
  .page-products .ph-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: center;
    gap: 48px;
  }

  .page-products .ph-hero__figure {
    transform: translateY(-14px);
  }

  .page-products .ph-rooms__grid {
    grid-template-columns: 7fr 4fr;
    gap: 44px;
    align-items: start;
  }

  .page-products .ph-version__grid {
    grid-template-columns: 7fr 4fr;
    gap: 44px;
    align-items: start;
  }

  .page-products .step-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .step-flow__item::after {
    content: "";
    position: absolute;
    top: 52px;
    right: -18px;
    width: 22px;
    height: 2px;
    background: var(--ph-line);
  }

  .page-products .step-flow__item:last-child::after {
    display: none;
  }

  .page-products .ph-closing {
    padding: 32px 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .version-chip {
    transition: none;
  }

  .page-products .version-chip:hover,
  .page-products .version-chip:focus-visible {
    transform: none;
  }
}
<<<END>>>

.page-products {
  --tier: currentColor;
}