.page-products {
  --pp-ink-soft: #22354e;
  --pp-hairline: rgba(22, 74, 138, 0.6);
}

/* ---------- 首屏 ---------- */
.page-products .apps-intro {
  padding: clamp(26px, 5vw, 54px) 0 clamp(36px, 6vw, 72px);
}

.page-products .apps-intro__head {
  max-width: 880px;
  padding-bottom: clamp(20px, 3vw, 32px);
  margin-bottom: clamp(26px, 4vw, 46px);
  border-bottom: 2px solid var(--arena-blue);
}

.page-products .apps-intro__head h1 {
  margin: 14px 0 18px;
  font-size: clamp(28px, 5vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--paper);
}

.page-products .apps-intro__lede {
  max-width: 58ch;
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.78;
  color: var(--mist);
}

.page-products .apps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-products .apps-grid__title {
  font-size: clamp(21px, 2.8vw, 28px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--paper);
}

.page-products .apps-grid__sub {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-products .tool-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 2px solid var(--arena-blue);
}

.page-products .tool-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px solid var(--pp-hairline);
  transition: background-color 180ms var(--ease);
}

.page-products .tool-item:hover {
  background: linear-gradient(90deg, rgba(59, 240, 220, 0.09), transparent 70%);
}

.page-products .tool-item__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--space-blue);
  background: var(--cyan);
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
}

.page-products .tool-item__name {
  font-size: 17.5px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin-bottom: 6px;
}

.page-products .tool-item__desc {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
  margin-bottom: 8px;
}

.page-products .tool-item__meta {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-products .apps-shot {
  margin: 0 0 20px;
  background: var(--night-blue);
  border: 2px solid var(--arena-blue);
  box-shadow: var(--shadow-mid);
}

.page-products .apps-shot img {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .apps-shot__cap {
  padding: 10px 12px;
  border-top: 1px solid var(--pp-hairline);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

.page-products .side-note {
  padding: 18px;
  background: var(--night-blue);
  border: 2px solid var(--arena-blue);
  box-shadow: var(--shadow-soft);
}

.page-products .side-note p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 章节标题通用 ---------- */
.page-products .sec-head {
  max-width: 720px;
  margin-bottom: clamp(22px, 3.5vw, 38px);
}

.page-products .sec-head--wide {
  max-width: 920px;
}

.page-products .sec-head--tight {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-products .sec-head h2 {
  margin: 12px 0 14px;
  font-size: clamp(23px, 3.2vw, 33px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--paper);
}

.page-products .sec-head__lede {
  font-size: clamp(14.5px, 1.5vw, 16px);
  line-height: 1.76;
  color: var(--mist);
}

/* ---------- 额度对照 ---------- */
.page-products .ledger {
  padding: clamp(36px, 6vw, 72px) 0;
  border-top: 2px solid var(--arena-blue);
  background: linear-gradient(158deg, var(--night-blue), var(--space-blue) 62%);
}

.page-products .ledger-visual {
  margin: 0 0 clamp(24px, 4vw, 40px);
  border: 2px solid var(--arena-blue);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-products .ledger-visual img {
  display: block;
  width: 100%;
  height: clamp(140px, 24vw, 280px);
  object-fit: cover;
}

.page-products .ledger-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-products .ledger-tools {
  padding: 18px;
  background: rgba(6, 20, 40, 0.72);
  border: 2px solid var(--arena-blue);
  box-shadow: var(--shadow-soft);
}

.page-products .filter-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 20px;
}

.page-products .filter-chip {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  padding: 7px 11px;
  color: var(--mist);
  background: transparent;
  border: 1px solid rgba(22, 74, 138, 0.9);
  cursor: pointer;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-products .filter-chip:hover {
  color: var(--paper);
  border-color: var(--cyan);
}

.page-products .filter-chip.is-on {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(59, 240, 220, 0.1);
  box-shadow: inset 0 0 0 1px rgba(59, 240, 220, 0.35);
}

.page-products .ledger-legend {
  margin: 0 0 16px;
  padding-top: 14px;
  border-top: 1px solid var(--pp-hairline);
}

.page-products .ledger-legend dt {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products .ledger-legend dd {
  margin: 3px 0 12px;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--mist);
}

.page-products .ledger-legend dd:last-child {
  margin-bottom: 0;
}

.page-products .ledger-tools__note {
  margin-top: 6px;
  padding-left: 10px;
  border-left: 3px solid var(--orange);
  font-size: 13px;
  line-height: 1.66;
  color: var(--mist);
}

.page-products .ledger-tablewrap {
  border: 2px solid var(--arena-blue);
  background: var(--night-blue);
  box-shadow: var(--shadow-mid);
  overflow-x: auto;
}

.page-products .ledger-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-products .ledger-table__cap {
  padding: 14px 16px 10px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-products .ledger-table thead th {
  padding: 10px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
  white-space: nowrap;
  background: rgba(6, 20, 40, 0.65);
  border-bottom: 2px solid var(--arena-blue);
}

.page-products .ledger-table tbody td {
  padding: 12px 16px;
  color: var(--paper);
  white-space: nowrap;
  border-bottom: 1px solid rgba(22, 74, 138, 0.55);
}

.page-products .ledger-table tbody tr {
  transition: background-color 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-products .ledger-table tbody tr:hover {
  background: rgba(59, 240, 220, 0.07);
  box-shadow: inset 4px 0 0 var(--cyan);
}

.page-products .ledger-table .num {
  text-align: right;
}

.page-products .dir {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
}

.page-products .dir--out {
  color: var(--orange);
}

.page-products .dir--in {
  color: var(--cyan);
}

.page-products .ledger-foot {
  padding: 12px 16px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
  background: rgba(6, 20, 40, 0.5);
  border-top: 1px solid rgba(22, 74, 138, 0.55);
}

/* ---------- 厂商列表 ---------- */
.page-products .vendors {
  padding: clamp(36px, 6vw, 72px) 0 clamp(30px, 5vw, 56px);
  border-top: 2px solid var(--arena-blue);
}

.page-products .vendors-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-bottom: clamp(30px, 5vw, 54px);
}

.page-products .vendors-media {
  margin: 0;
  border: 2px solid var(--arena-blue);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-products .vendors-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-products .vendors-fields {
  display: grid;
  gap: 0;
  border-top: 2px solid var(--arena-blue);
}

.page-products .field-item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--pp-hairline);
}

.page-products .field-item__no {
  padding-top: 3px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-products .field-item h3 {
  font-size: 16.5px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin-bottom: 6px;
}

.page-products .field-item p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .vendor-groups {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-products .vendor-group {
  position: relative;
  padding: 20px 16px;
  background: var(--night-blue);
  border: 2px solid var(--arena-blue);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.page-products .vendor-group__bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 6px;
  background: var(--cyan);
}

.page-products .vendor-group--gear .vendor-group__bar {
  width: 78%;
  background: var(--cyan);
}

.page-products .vendor-group--timing .vendor-group__bar {
  width: 52%;
  background: var(--orange);
}

.page-products .vendor-group--build .vendor-group__bar {
  width: 39%;
  background: var(--gold);
}

.page-products .vendor-group--rehab .vendor-group__bar {
  width: 30%;
  background: var(--mist);
}

.page-products .vendor-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}

.page-products .vendor-group__name {
  font-size: 17px;
  font-weight: 800;
  color: var(--paper);
}

.page-products .vendor-group__count {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-products .vendor-group__desc {
  margin-bottom: 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.page-products .vendor-group__sample {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--pp-hairline);
}

.page-products .vendor-group__sample dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-products .vendor-group__sample dd {
  margin: 2px 0 10px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--paper);
}

.page-products .vendor-group__sample dd:last-child {
  margin-bottom: 0;
}

.page-products .vendors-cta {
  margin-top: clamp(24px, 4vw, 36px);
  padding-top: 18px;
  border-top: 1px solid var(--pp-hairline);
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-products .vendors-cta a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(59, 240, 220, 0.5);
  transition: border-color 180ms var(--ease);
}

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

/* ---------- 新旧对照（浅色带） ---------- */
.page-products .versions {
  padding: clamp(36px, 6vw, 72px) 0;
  border-top: 2px solid var(--arena-blue);
  background: var(--haze);
}

.page-products .versions .label {
  color: var(--arena-blue);
}

.page-products .versions .sec-head h2 {
  color: var(--space-blue);
}

.page-products .versions .sec-head__lede {
  color: var(--pp-ink-soft);
}

.page-products .versions-duo {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-bottom: clamp(26px, 4vw, 38px);
}

.page-products .version-card {
  padding: 20px 18px 22px;
  background: #ffffff;
  border: 2px solid var(--space-blue);
  box-shadow: 6px 6px 0 var(--space-blue);
}

.page-products .version-card--new {
  background: var(--space-blue);
  border-color: var(--space-blue);
  box-shadow: 6px 6px 0 var(--cyan);
}

.page-products .version-card__tag {
  margin-bottom: 14px;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--arena-blue);
}

.page-products .version-card--new .version-card__tag {
  color: var(--cyan);
}

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

.page-products .version-list li {
  padding: 8px 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--space-blue);
  background: rgba(22, 74, 138, 0.08);
  border-left: 3px solid var(--arena-blue);
}

.page-products .version-card--new .version-list li {
  color: var(--paper);
  background: rgba(59, 240, 220, 0.1);
  border-left-color: var(--cyan);
}

.page-products .version-list__badge {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 6px;
  vertical-align: middle;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  color: var(--space-blue);
  background: var(--orange);
}

.page-products .version-card__note {
  font-size: 13.5px;
  line-height: 1.66;
  color: var(--pp-ink-soft);
}

.page-products .version-card--new .version-card__note {
  color: var(--mist);
}

.page-products .version-diagram {
  margin: 0;
  border: 2px solid var(--space-blue);
  box-shadow: 6px 6px 0 var(--space-blue);
  overflow: hidden;
}

.page-products .version-diagram img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 提醒设置 ---------- */
.page-products .alerts {
  padding: clamp(36px, 6vw, 72px) 0;
  border-top: 2px solid var(--arena-blue);
}

.page-products .alert-switches {
  display: grid;
  gap: 14px;
  margin-bottom: 26px;
}

.page-products .switch-row {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px;
  background: var(--night-blue);
  border: 2px solid var(--arena-blue);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  transition: border-color 180ms var(--ease);
}

.page-products .switch-row:hover {
  border-color: var(--cyan);
}

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

.page-products .switch {
  position: relative;
  display: block;
  width: 44px;
  height: 24px;
  background: rgba(6, 20, 40, 0.9);
  border: 2px solid var(--arena-blue);
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-products .switch::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 14px;
  height: 14px;
  background: var(--mist);
  transition: transform 180ms var(--ease), background-color 180ms var(--ease);
}

.page-products .switch-row__input:checked + .switch {
  border-color: var(--cyan);
  background: rgba(59, 240, 220, 0.16);
}

.page-products .switch-row__input:checked + .switch::after {
  transform: translateX(20px);
  background: var(--cyan);
}

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

.page-products .switch-row__body {
  display: block;
}

.page-products .switch-row__name {
  display: block;
  margin-bottom: 4px;
  font-size: 15.5px;
  font-weight: 800;
  color: var(--paper);
}

.page-products .switch-row__desc {
  display: block;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--mist);
}

.page-products .export-note {
  padding: 16px 18px;
  background: rgba(12, 37, 69, 0.62);
  border: 2px solid var(--arena-blue);
  border-left-width: 6px;
  border-left-color: var(--cyan);
}

.page-products .export-note p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 场景 ---------- */
.page-products .scenes {
  padding: clamp(36px, 6vw, 72px) 0;
  border-top: 2px solid var(--arena-blue);
  background: linear-gradient(200deg, var(--space-blue), var(--night-blue));
}

.page-products .scenes-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: clamp(22px, 3.5vw, 34px);
}

.page-products .scene {
  padding: 20px 0;
  border-top: 2px solid var(--arena-blue);
}

.page-products .scene:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-products .scene__no {
  display: block;
  margin-bottom: 8px;
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-products .scene h3 {
  margin-bottom: 10px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .scene p {
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-products .scenes-media {
  margin: 0;
  border: 2px solid var(--arena-blue);
  box-shadow: var(--shadow-mid);
  overflow: hidden;
}

.page-products .scenes-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-products .versions-duo {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .page-products .version-card--old {
    transform: translateY(16px);
  }

  .page-products .version-card--new {
    transform: translateY(-4px);
  }

  .page-products .vendor-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-products .apps-grid {
    grid-template-columns: minmax(0, 1.9fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-products .vendors-layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.6fr);
    gap: 40px;
    align-items: start;
  }

  .page-products .scenes-layout {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.9fr);
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-products .ledger-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 2.4fr);
    gap: 34px;
    align-items: start;
  }
}

@media (min-width: 1120px) {
  .page-products .vendor-groups {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    transition: none !important;
    animation: none !important;
  }

  .page-products .version-card--old,
  .page-products .version-card--new {
    transform: none;
  }
}