.page-products {
  --pf-gap: clamp(1rem, 3vw, 2rem);
  background: var(--c-night);
  color: var(--c-body);
}

.page-products .pf-num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
  color: var(--c-frost);
}

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

.page-products .pf-fig {
  margin: 0;
  border: 1px solid var(--line-ice);
  background: var(--c-snow-deep);
  border-radius: var(--radius);
  overflow: hidden;
}

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

/* ---------- 首屏 ---------- */

.page-products .pf-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--line-ice);
  background:
    radial-gradient(120% 92% at 88% 6%, rgba(106, 76, 255, 0.24), transparent 62%),
    radial-gradient(88% 70% at 2% 100%, rgba(43, 232, 176, 0.1), transparent 60%),
    var(--c-night);
}

.page-products .pf-hero-media {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: auto;
  width: min(56%, 760px);
  margin: 0;
  z-index: 0;
  pointer-events: none;
}

.page-products .pf-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 62% 46%;
  opacity: 0.34;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 46%);
  mask-image: linear-gradient(90deg, transparent 0, #000 46%);
}

.page-products .pf-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  padding-block: clamp(1.4rem, 3vw, 2rem) clamp(2.4rem, 6vw, 4.2rem);
}

.page-products .pf-hero .breadcrumb {
  margin-bottom: clamp(1.4rem, 4vw, 2.4rem);
}

.page-products .eyebrow {
  margin: 0 0 0.9rem;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-ice);
}

.page-products h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 6.4vw, 4.2rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--c-frost);
}

.page-products .pf-lede {
  margin: clamp(1rem, 3vw, 1.4rem) 0 0;
  max-width: 36em;
  font-size: clamp(0.98rem, 2.2vw, 1.06rem);
  line-height: 1.8;
  color: var(--c-body);
}

.page-products .pf-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(1.4rem, 4vw, 2rem);
}

.page-products .pf-quickstats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(1.8rem, 5vw, 2.6rem) 0 0;
  padding: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

.page-products .pf-quickstat {
  padding: 0.85rem 1rem;
  background: rgba(18, 46, 69, 0.7);
}

.page-products .pf-quickstat dt {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-grit);
}

.page-products .pf-quickstat dd {
  margin: 0.35rem 0 0;
  font-family: var(--font-num);
  font-size: 1.15rem;
  letter-spacing: 0.05em;
  color: var(--c-frost);
}

.page-products .pf-quickstat dd .pf-num {
  font-size: 1.55rem;
  color: var(--c-neon);
}

/* ---------- 章节骨架 ---------- */

.page-products .section {
  padding-block: clamp(2.6rem, 7vw, 5rem);
}

.page-products .section-title {
  color: var(--c-frost);
}

.page-products .section-meta {
  color: var(--c-grit);
}

/* ---------- 产品线 ---------- */

.page-products .pf-line-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-products .pf-line {
  position: relative;
  padding: clamp(1.2rem, 3vw, 1.7rem);
  background: var(--c-snow-deep);
  border-top: 2px solid transparent;
  transition: border-color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.page-products .pf-line:hover {
  border-top-color: var(--c-neon);
  background: rgba(18, 46, 69, 0.94);
}

.page-products .pf-line-num {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-violet);
}

.page-products .pf-line h3 {
  margin: 0.5rem 0 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.1rem, 2.6vw, 1.3rem);
  color: var(--c-frost);
  letter-spacing: -0.01em;
}

.page-products .pf-line p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.78;
}

.page-products .pf-line-use {
  margin-top: 0.9rem !important;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line-soft);
  font-size: 0.83rem !important;
  color: var(--c-grit);
}

/* ---------- 版本队列 ---------- */

.page-products .pf-queue-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pf-gap);
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
}

.page-products .pf-queue-lead p {
  margin: 0 0 1.2rem;
  max-width: 34em;
  font-size: 0.98rem;
  line-height: 1.8;
}

.page-products .pf-queue .version-ruler {
  border-top: 1px solid var(--line-ice);
  border-bottom: 1px solid var(--line-ice);
}

.page-products .pf-queue .version-tick {
  transition: background-color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-products .pf-queue .version-tick[data-active] .tick-num {
  color: var(--c-neon);
}

.page-products .pf-queue-fig {
  align-self: start;
}

.page-products .version-panel {
  position: relative;
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
}

.page-products .pf-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-products .pf-chip {
  display: inline-block;
  margin: 0 0.4rem 0.6rem 0;
  padding: 0.42rem 0.85rem;
  font-family: var(--font-num);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--c-ice);
  border: 1px solid var(--line-ice);
  border-radius: 2px;
  background: rgba(18, 46, 69, 0.5);
  cursor: pointer;
  transition: background-color var(--t) var(--ease), color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-products .pf-chip:hover {
  border-color: var(--c-ice);
  color: var(--c-frost);
}

.page-products .pf-radio:checked + .pf-chip {
  background: var(--c-neon);
  border-color: var(--c-neon);
  color: #062016;
}

.page-products .pf-radio:focus-visible + .pf-chip {
  outline: 2px solid var(--c-frost);
  outline-offset: 2px;
}

.page-products .pf-table-scroll {
  margin-top: 0.6rem;
  overflow-x: auto;
  border: 1px solid var(--line-ice);
  border-radius: var(--radius);
  -webkit-overflow-scrolling: touch;
}

.page-products .v-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.page-products .v-table th,
.page-products .v-table td {
  padding: 0.72rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
  white-space: nowrap;
}

.page-products .v-table thead th {
  background: rgba(44, 74, 99, 0.55);
  font-family: var(--font-num);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  font-weight: 500;
  color: var(--c-ice);
  text-transform: uppercase;
}

.page-products .v-table tbody th {
  font-weight: 500;
}

.page-products .v-table tbody tr {
  transition: background-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

.page-products .v-table tbody tr:nth-child(even) {
  background: rgba(18, 46, 69, 0.45);
}

.page-products .v-table tbody tr:hover {
  background: rgba(43, 232, 176, 0.08);
  box-shadow: inset 3px 0 0 var(--c-neon);
}

.page-products .v-table td:last-child {
  white-space: normal;
  min-width: 12em;
  color: var(--c-body);
}

.page-products .pf-tag {
  display: inline-block;
  padding: 0.16em 0.55em;
  font-family: var(--font-num);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  border: 1px solid currentColor;
  border-radius: 2px;
  color: var(--c-ice);
}

.page-products .pf-tag--main {
  color: var(--c-neon);
}

.page-products .pf-tag--back {
  color: var(--c-orange);
}

.page-products .pf-panel-note {
  margin: 0.85rem 0 0;
  font-size: 0.83rem;
  line-height: 1.7;
  color: var(--c-grit);
}

.page-products .pf-adapt-fig {
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
}

/* 系统类别筛选（纯 CSS） */
.page-products #pf-sys-android:checked ~ .pf-table-scroll tbody tr:not([data-sys~="android"]),
.page-products #pf-sys-webos:checked ~ .pf-table-scroll tbody tr:not([data-sys~="webos"]),
.page-products #pf-sys-tizen:checked ~ .pf-table-scroll tbody tr:not([data-sys~="tizen"]),
.page-products #pf-sys-harmony:checked ~ .pf-table-scroll tbody tr:not([data-sys~="harmony"]) {
  display: none;
}

/* ---------- 安装流程 ---------- */

.page-products .pf-install-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pf-gap);
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
}

.page-products .pf-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: pfstep;
}

.page-products .pf-step {
  position: relative;
  padding: 1.1rem 0 1.1rem 3.4rem;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pf-step:first-child {
  border-top: 1px solid var(--line-ice);
}

.page-products .pf-step-num {
  position: absolute;
  left: 0;
  top: 1.15rem;
  font-family: var(--font-num);
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  color: var(--c-violet);
}

.page-products .pf-step h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--c-frost);
}

.page-products .pf-step p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.78;
}

.page-products .pf-install-fig {
  align-self: center;
}

/* ---------- 小屏协同 ---------- */

.page-products .pf-small-grid {
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
  align-items: start;
}

.page-products .pf-small-copy p {
  margin: 0 0 1.1rem;
  max-width: 38em;
  font-size: 0.96rem;
  line-height: 1.82;
}

.page-products .pf-small-list {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-products .pf-small-list li {
  position: relative;
  padding: 0.62rem 0 0.62rem 1.4rem;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.9rem;
  line-height: 1.72;
}

.page-products .pf-small-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.15rem;
  width: 8px;
  height: 8px;
  border: 1px solid var(--c-neon);
}

.page-products .pf-small-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
  margin: 0;
  font-size: 0.88rem;
}

.page-products .pf-small-links a {
  color: var(--c-ice);
  text-decoration: none;
  border-bottom: 1px solid var(--line-ice);
  padding-bottom: 2px;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-products .pf-small-links a:hover,
.page-products .pf-small-links a:focus-visible {
  color: var(--c-orange);
  border-color: var(--c-orange);
}

.page-products .pf-small-fig {
  border-left: 3px solid var(--c-neon);
}

/* ---------- 使用场景 ---------- */

.page-products .pf-scene-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pf-gap);
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
}

.page-products .pf-scene-card {
  padding: clamp(1.2rem, 3vw, 1.7rem);
  background: linear-gradient(180deg, rgba(18, 46, 69, 0.92), rgba(11, 27, 43, 0.9));
  border: 1px solid var(--line-ice);
  border-radius: var(--radius);
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-products .pf-scene-card:hover {
  border-color: var(--c-orange);
}

.page-products .pf-scene-icon {
  display: block;
  width: 40px;
  height: 40px;
  color: var(--c-ice);
  margin-bottom: 0.9rem;
}

.page-products .pf-scene-card h3 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.12rem;
  color: var(--c-frost);
}

.page-products .pf-scene-card p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.78;
}

.page-products .pf-scene-meta {
  margin-top: 0.9rem !important;
  padding-top: 0.7rem;
  border-top: 1px solid var(--line-soft);
  font-size: 0.81rem !important;
  color: var(--c-grit);
}

.page-products .pf-scene-tail {
  margin: clamp(1.4rem, 4vw, 2rem) 0 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--c-body);
}

.page-products .pf-scene-tail a {
  color: var(--c-orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 41, 0.5);
}

.page-products .pf-scene-tail a:hover,
.page-products .pf-scene-tail a:focus-visible {
  border-bottom-color: var(--c-orange);
}

/* ---------- 维护与回退 ---------- */

.page-products .pf-maint-intro p {
  margin: clamp(1.4rem, 4vw, 2rem) 0 0;
  max-width: 40em;
  font-size: 0.98rem;
  line-height: 1.84;
}

.page-products .pf-details {
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
  border-top: 1px solid var(--line-ice);
}

.page-products .v-detail {
  border-bottom: 1px solid var(--line-soft);
}

.page-products .v-detail summary {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1rem 0;
  cursor: pointer;
  list-style: none;
  transition: color var(--t) var(--ease);
}

.page-products .v-detail summary::-webkit-details-marker {
  display: none;
}

.page-products .v-detail summary:hover .pf-detail-title,
.page-products .v-detail[open] .pf-detail-title {
  color: var(--c-frost);
}

.page-products .pf-detail-num {
  font-family: var(--font-num);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--c-neon);
  min-width: 4.4em;
}

.page-products .pf-detail-title {
  flex: 1;
  font-size: 0.96rem;
  color: var(--c-body);
  transition: color var(--t) var(--ease);
}

.page-products .pf-detail-caret {
  width: 9px;
  height: 9px;
  border-right: 1px solid var(--c-ice);
  border-bottom: 1px solid var(--c-ice);
  transform: rotate(45deg);
  transition: transform var(--t-slow) var(--ease);
}

.page-products .v-detail[open] .pf-detail-caret {
  transform: rotate(-135deg);
}

.page-products .pf-detail-body {
  padding: 0 0 1.4rem;
}

.page-products .pf-detail-body p {
  margin: 0 0 0.9rem;
  max-width: 40em;
  font-size: 0.93rem;
  line-height: 1.8;
}

.page-products .pf-detail-body ul {
  list-style: none;
  margin: 0 0 1.1rem;
  padding: 0;
}

.page-products .pf-detail-body li {
  padding: 0.42rem 0 0.42rem 1.1rem;
  position: relative;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--c-grit);
}

.page-products .pf-detail-body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1rem;
  width: 6px;
  height: 1px;
  background: var(--c-neon);
}

.page-products .pf-maint-notice {
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
  font-size: 0.92rem;
  line-height: 1.8;
}

.page-products .pf-maint-notice a {
  color: var(--c-orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 41, 0.5);
}

.page-products .pf-maint-notice a:hover,
.page-products .pf-maint-notice a:focus-visible {
  border-bottom-color: var(--c-orange);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-products .pf-quickstats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pf-line-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pf-scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .pf-queue-top {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-products .pf-install-grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }

  .page-products .pf-small-grid {
    align-items: center;
  }

  .page-products .pf-scene-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-products .pf-hero-media {
    width: min(52%, 820px);
  }

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

@media (max-width: 899px) {
  .page-products .pf-hero-media {
    width: 100%;
    opacity: 0.5;
  }

  .page-products .pf-hero-media img {
    -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5) 0, transparent 92%);
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5) 0, transparent 92%);
  }
}

@media (max-width: 520px) {
  .page-products .pf-detail-num {
    min-width: auto;
  }

  .page-products .pf-detail-title {
    font-size: 0.88rem;
  }

  .page-products .v-table th,
  .page-products .v-table td {
    padding: 0.62rem 0.7rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products * {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}