.page-products {
  --pp-cyan-soft: rgba(63, 224, 208, 0.1);
  --pp-purple-soft: rgba(138, 107, 255, 0.1);
  --pp-orange-soft: rgba(255, 154, 77, 0.1);
  --pp-gap: clamp(20px, 4vw, 40px);
  display: block;
}

.page-products .prod-arrow {
  display: inline-block;
  margin-left: 8px;
  transition: transform 0.22s ease-out;
}

.page-products .btn:hover .prod-arrow,
.page-products .btn:focus-visible .prod-arrow {
  transform: translateX(4px);
}

/* ---------- 首屏框景 ---------- */
.page-products .prod-hero {
  padding: clamp(20px, 4vw, 36px) 0 clamp(36px, 6vw, 72px);
}

.page-products .prod-hero__frame {
  position: relative;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(14, 22, 38, 0.94) 0%, rgba(6, 10, 20, 0.6) 100%);
  padding: clamp(24px, 5vw, 56px);
  padding-right: clamp(30px, 6vw, 72px);
}

.page-products .prod-hero__frame::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 12px;
  background-image: repeating-linear-gradient(180deg, var(--line) 0 1px, transparent 1px 14px);
  border-left: 1px solid var(--line);
  pointer-events: none;
}

.page-products .prod-hero__frame::before {
  content: "";
  position: absolute;
  left: -1px;
  bottom: -1px;
  width: 96px;
  height: 3px;
  background: var(--cyan);
}

.page-products .prod-hero__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-products .prod-hero__code {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin: 0;
}

.page-products .prod-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 8.5vw, 76px);
  line-height: 1.08;
  letter-spacing: 0.06em;
  color: var(--white);
  margin: 0 0 clamp(18px, 3vw, 30px);
  transform: scaleX(0.94);
  transform-origin: left center;
}

.page-products .prod-hero__lead {
  max-width: 40ch;
  margin: 0 0 clamp(24px, 4vw, 36px);
}

.page-products .prod-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .prod-hero__meta {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-products .prod-hero__meta-item {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-products .prod-hero__meta-item .mono {
  color: var(--cyan);
  margin-right: 10px;
}

/* ---------- 章节头 ---------- */
.page-products .prod-head {
  border-top: 1px solid var(--line);
  padding-top: 18px;
  margin-bottom: var(--pp-gap);
}

.page-products .prod-head .section-index {
  margin: 0 0 6px;
  color: var(--cyan);
}

.page-products .prod-head .section-title {
  margin: 0 0 10px;
}

.page-products .prod-head .section-kicker {
  margin: 0;
  max-width: 46ch;
}

.page-products .prod-sub {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 17px;
  letter-spacing: 0.04em;
  color: var(--white);
  margin: 28px 0 10px;
  padding-left: 12px;
  border-left: 2px solid var(--line);
}

.page-products .prod-sub:first-child {
  margin-top: 0;
}

/* ---------- 总览两张说明牌 ---------- */
.page-products .prod-overview {
  padding: clamp(36px, 6vw, 72px) 0;
}

.page-products .prod-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
}

.page-products .prod-card {
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: clamp(20px, 4vw, 32px);
  transition: transform 0.25s ease-out, border-color 0.25s ease-out, box-shadow 0.25s ease-out;
}

.page-products .prod-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(6, 10, 20, 0.55);
}

.page-products .prod-card--app:hover {
  border-color: var(--cyan);
}

.page-products .prod-card--club:hover {
  border-color: var(--purple);
}

.page-products .prod-card__stripe {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.page-products .prod-card--app .prod-card__stripe {
  background: linear-gradient(90deg, var(--cyan), rgba(63, 224, 208, 0));
}

.page-products .prod-card--club .prod-card__stripe {
  background: linear-gradient(90deg, var(--purple), rgba(138, 107, 255, 0));
}

.page-products .prod-card--app .exhibit-label {
  color: var(--cyan);
}

.page-products .prod-card--club .exhibit-label {
  color: var(--purple);
}

.page-products .prod-card__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 4vw, 34px);
  letter-spacing: 0.05em;
  color: var(--white);
  margin: 10px 0 8px;
}

.page-products .prod-card__line {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  margin: 0 0 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-products .prod-card__facts {
  margin: 0 0 18px;
}

.page-products .prod-card__facts .data-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .prod-card__facts .data-row__key {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-products .prod-card__facts .data-row__value {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

.page-products .prod-more {
  border: 1px solid var(--line);
  background: rgba(6, 10, 20, 0.6);
  margin-bottom: 20px;
}

.page-products .prod-more__summary {
  cursor: pointer;
  list-style: none;
  padding: 12px 14px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.page-products .prod-more__summary::-webkit-details-marker {
  display: none;
}

.page-products .prod-more__summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--muted);
  font-size: 15px;
}

.page-products .prod-more[open] .prod-more__summary::after {
  content: "−";
}

.page-products .prod-more--app-marker,
.page-products .prod-card--app .prod-more[open] .prod-more__summary {
  color: var(--cyan);
}

.page-products .prod-card--club .prod-more[open] .prod-more__summary {
  color: var(--purple);
}

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

.page-products .prod-more__list li {
  position: relative;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
  padding: 7px 0 7px 16px;
  border-top: 1px solid var(--line);
}

.page-products .prod-more__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 15px;
  width: 8px;
  height: 1px;
  background: var(--muted);
}

.page-products .prod-card__cta {
  width: 100%;
  justify-content: center;
}

.page-products .prod-overview__note {
  margin: var(--pp-gap) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  max-width: 74ch;
}

.page-products .prod-overview__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 224, 208, 0.4);
}

.page-products .prod-overview__note a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 分栏内容区 ---------- */
.page-products .prod-app,
.page-products .prod-club,
.page-products .prod-version,
.page-products .prod-address,
.page-products .prod-flow {
  padding: clamp(36px, 6vw, 76px) 0;
}

.page-products .prod-club {
  background: linear-gradient(180deg, rgba(15, 59, 58, 0.28) 0%, rgba(6, 10, 20, 0) 60%);
  border-top: 1px solid var(--line);
}

.page-products .prod-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
}

.page-products .prod-split__body {
  min-width: 0;
}

.page-products .prod-plat {
  list-style: none;
  margin: 0 0 4px;
  padding: 0;
  border: 1px solid var(--line);
}

.page-products .prod-plat__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
}

.page-products .prod-plat__item:last-child {
  border-bottom: 0;
}

.page-products .prod-plat__icon {
  color: var(--cyan);
  display: inline-flex;
  flex: 0 0 auto;
}

.page-products .prod-plat__name {
  flex: 1 1 auto;
  font-size: 14px;
  color: var(--text);
}

.page-products .prod-plat__req {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.page-products .prod-steps {
  list-style: none;
  counter-reset: pstep;
  margin: 0 0 16px;
  padding: 0;
}

.page-products .prod-steps__item {
  counter-increment: pstep;
  position: relative;
  padding: 12px 0 12px 44px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text);
  border-bottom: 1px solid var(--line);
}

.page-products .prod-steps__item::before {
  content: counter(pstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  border: 1px solid var(--line);
  padding: 2px 6px;
  line-height: 1.2;
}

.page-products .prod-steps--warm .prod-steps__item::before {
  color: var(--orange);
}

.page-products .prod-media {
  margin: 0;
}

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

.page-products .prod-media--wide {
  margin-top: var(--pp-gap);
}

.page-products .prod-media--square {
  max-width: 420px;
}

/* ---------- 设备要求 ---------- */
.page-products .prod-req {
  list-style: none;
  margin: 0 0 var(--pp-gap);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .prod-req__item {
  background: var(--panel);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 16px;
}

.page-products .prod-req__icon {
  color: var(--cyan);
  display: inline-flex;
}

.page-products .prod-req__item:nth-child(2) .prod-req__icon {
  color: var(--purple);
}

.page-products .prod-req__item:nth-child(3) .prod-req__icon {
  color: var(--orange);
}

.page-products .prod-req__label {
  font-size: 14px;
  color: var(--text);
}

.page-products .prod-req__value {
  font-size: 13px;
  color: var(--white);
  letter-spacing: 0.06em;
}

.page-products .prod-vgrid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
}

.page-products .prod-verlist {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .prod-verlist__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .prod-verlist__key {
  font-size: 14px;
  color: var(--cyan);
  letter-spacing: 0.08em;
}

.page-products .prod-verlist__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .prod-notice {
  margin-top: 18px;
  border-left: 3px solid var(--orange);
  background: var(--pp-orange-soft);
  padding: 14px 16px;
}

.page-products .prod-notice .notice__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--orange);
  margin-bottom: 6px;
}

.page-products .prod-notice__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 地址对照表 ---------- */
.page-products .prod-address__lead {
  max-width: 66ch;
  margin: 0 0 22px;
}

.page-products .ver-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

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

.page-products .ver-filter__label {
  display: inline-block;
  cursor: pointer;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 8px 14px;
  transition: color 0.2s ease-out, border-color 0.2s ease-out, background 0.2s ease-out;
}

.page-products .ver-filter__label:hover {
  color: var(--text);
  border-color: var(--purple);
}

.page-products .ver-filter__input:checked + .ver-filter__label {
  color: var(--white);
  border-color: var(--purple);
  background: var(--pp-purple-soft);
}

.page-products .ver-filter__input:focus-visible + .ver-filter__label {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-products .addr-wrap {
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-products .addr-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .addr-table thead {
  display: none;
}

.page-products .addr-table tbody,
.page-products .addr-table tr,
.page-products .addr-table th,
.page-products .addr-table td {
  display: block;
}

.page-products .addr-table__row {
  border-bottom: 1px solid var(--line);
  padding: 14px 16px;
}

.page-products .addr-table__row:last-child {
  border-bottom: 0;
}

.page-products .addr-table__row:hover {
  background: rgba(138, 107, 255, 0.06);
}

.page-products .addr-table th[scope="row"] {
  font-size: 15px;
  font-weight: 500;
  color: var(--white);
  padding: 0 0 8px;
  text-align: left;
}

.page-products .addr-table td {
  position: relative;
  padding: 5px 0 5px 0;
  color: var(--muted);
  line-height: 1.7;
  text-align: left;
}

.page-products .addr-table td::before {
  content: attr(data-label) " · ";
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--line);
}

.page-products .addr-table td.mono {
  color: var(--cyan);
  font-size: 12.5px;
}

.page-products:has(#vf-major:checked) .addr-table__row:not([data-ver="major"]),
.page-products:has(#vf-backup:checked) .addr-table__row:not([data-ver="backup"]),
.page-products:has(#vf-history:checked) .addr-table__row:not([data-ver="history"]) {
  display: none;
}

.page-products .addr-foot {
  margin: 18px 0 0;
  max-width: 66ch;
}

.page-products .addr-foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 224, 208, 0.4);
}

/* ---------- 五步流程 ---------- */
.page-products .flow {
  list-style: none;
  margin: 0 0 var(--pp-gap);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  counter-reset: none;
}

.page-products .flow__item {
  position: relative;
  background: var(--panel);
  padding: 20px 18px;
  transition: background 0.25s ease-out, box-shadow 0.25s ease-out;
}

.page-products .flow__no {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 3px 8px;
  margin-bottom: 12px;
  transition: color 0.25s ease-out, border-color 0.25s ease-out;
}

.page-products .flow__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 16px;
  letter-spacing: 0.04em;
  color: var(--white);
  margin: 0 0 8px;
}

.page-products .flow__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-products .flow__item:hover,
.page-products .flow__item:focus-visible {
  background: rgba(63, 224, 208, 0.07);
  outline: none;
  box-shadow: inset 3px 0 0 var(--cyan);
}

.page-products .flow__item:hover .flow__no,
.page-products .flow__item:focus-visible .flow__no {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-products .prod-flow__media {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
}

.page-products .prod-flow__aside {
  min-width: 0;
}

/* ---------- 收尾 ---------- */
.page-products .prod-cta {
  padding: 0 0 clamp(48px, 7vw, 88px);
}

.page-products .prod-cta__strip {
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  background: linear-gradient(90deg, var(--pp-orange-soft) 0%, rgba(6, 10, 20, 0) 70%);
  padding: clamp(20px, 4vw, 32px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: center;
}

.page-products .prod-cta__text .eyebrow {
  color: var(--orange);
  margin: 0 0 8px;
}

.page-products .prod-cta__line {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  max-width: 52ch;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .prod-hero__meta {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .prod-req {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .prod-req__item {
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    align-items: center;
  }

  .page-products .prod-req__value {
    grid-column: 2;
  }

  .page-products .addr-table td {
    padding-left: 0;
  }
}

@media (min-width: 900px) {
  .page-products .prod-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .prod-split {
    grid-template-columns: 38fr 62fr;
    align-items: start;
  }

  .page-products .prod-split--reverse {
    grid-template-columns: 62fr 38fr;
  }

  .page-products .prod-split__side {
    position: sticky;
    top: 96px;
  }

  .page-products .prod-split--reverse .prod-split__side {
    position: static;
  }

  .page-products .prod-vgrid {
    grid-template-columns: 55fr 45fr;
    align-items: start;
  }

  .page-products .prod-card__facts .data-row {
    grid-template-columns: 88px 1fr;
    gap: 14px;
    align-items: baseline;
  }

  .page-products .prod-verlist__item {
    grid-template-columns: 96px 1fr;
    gap: 18px;
    align-items: baseline;
  }

  .page-products .addr-table {
    display: table;
  }

  .page-products .addr-table thead {
    display: table-header-group;
  }

  .page-products .addr-table tbody {
    display: table-row-group;
  }

  .page-products .addr-table tr {
    display: table-row;
  }

  .page-products .addr-table th,
  .page-products .addr-table td {
    display: table-cell;
    padding: 14px 16px;
    vertical-align: top;
  }

  .page-products .addr-table__row {
    padding: 0;
    transition: background 0.2s ease-out;
  }

  .page-products .addr-table__row:hover {
    box-shadow: inset 3px 0 0 var(--purple);
  }

  .page-products .addr-table thead th {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    color: var(--muted);
    font-weight: 400;
    text-transform: none;
    border-bottom: 1px solid var(--line);
    background: rgba(6, 10, 20, 0.6);
  }

  .page-products .addr-table th[scope="row"] {
    font-size: 14.5px;
    padding-bottom: 14px;
  }

  .page-products .addr-table td {
    font-size: 14px;
  }

  .page-products .addr-table td::before {
    content: none;
  }

  .page-products .flow {
    grid-template-columns: repeat(5, 1fr);
  }

  .page-products .flow__item::after {
    content: "";
    position: absolute;
    right: -1px;
    top: 30px;
    width: 1px;
    height: 22px;
    background: var(--cyan);
    opacity: 0;
    transition: opacity 0.25s ease-out;
  }

  .page-products .flow__item:hover::after {
    opacity: 0.7;
  }

  .page-products .prod-flow__media {
    grid-template-columns: 420px 1fr;
    align-items: start;
  }

  .page-products .prod-cta__strip {
    grid-template-columns: 1fr auto;
  }
}

@media (min-width: 1180px) {
  .page-products .prod-hero__frame {
    padding: 64px 84px 56px;
  }

  .page-products .prod-media--wide {
    margin-top: 48px;
  }
}