.page-products {
  --prod-gap: clamp(16px, 3vw, 32px);
  --prod-body: #c3cedc;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-16);
  line-height: 1.75;
  padding-bottom: clamp(48px, 8vw, 104px);
}

.page-products .wrap {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-products .num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--cyan);
}

/* 面包屑 */
.page-products .crumb {
  border-bottom: 2px solid var(--stroke);
  background: var(--ink-3);
}

.page-products .crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 14px 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-products .crumb li + li::before {
  content: "/";
  margin-right: 10px;
  color: var(--stroke);
}

.page-products .crumb a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-products .crumb a:hover,
.page-products .crumb a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* 章节标题 */
.page-products .sec-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  border-bottom: 2px solid var(--stroke);
  padding-bottom: 12px;
  margin-bottom: clamp(20px, 3.5vw, 36px);
}

.page-products .sec-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-products .sec-head h2 {
  margin: 0;
  font-size: clamp(22px, 3.6vw, 34px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

/* 首屏 */
.page-products .hero {
  padding-block: clamp(28px, 5vw, 64px) clamp(36px, 6vw, 76px);
  background:
    linear-gradient(180deg, rgba(47, 224, 208, 0.07), rgba(47, 224, 208, 0) 62%),
    var(--ink);
}

.page-products .hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-products .kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-products .hero h1 {
  margin: 0 0 18px;
  max-width: 22ch;
  font-size: clamp(28px, 5.4vw, 52px);
  font-weight: 900;
  letter-spacing: -0.025em;
  line-height: 1.18;
}

.page-products .lede {
  margin: 0 0 24px;
  max-width: 38ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--prod-body);
}

.page-products .hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}

.page-products .hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--prod-body);
}

.page-products .hero__facts li::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  background: var(--cyan);
  transform: translateY(-1px);
}

.page-products .hero__media,
.page-products .install__media,
.page-products .tablet__media,
.page-products .modules__media,
.page-products .release__media {
  margin: 0;
  border: 2px solid var(--stroke);
  background: var(--ink-2);
  box-shadow: var(--shadow-hard);
}

.page-products .hero__media img,
.page-products .install__media img,
.page-products .tablet__media img,
.page-products .modules__media img,
.page-products .release__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-bottom: 2px solid var(--stroke);
}

.page-products figcaption {
  padding: 10px 14px;
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--muted);
}

/* 分段控件 */
.page-products .devices {
  padding-block: clamp(36px, 6vw, 72px);
  background: var(--ink-3);
}

.page-products .device-switch {
  border: 0;
  margin: 0;
  padding: 0;
  position: relative;
  min-width: 0;
}

.page-products .device-switch > legend {
  padding: 0;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--muted);
}

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

.page-products .device-tabs {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 2px solid var(--stroke);
  background: var(--ink-2);
}

.page-products .device-tabs::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: calc(100% / 3);
  height: 4px;
  background: var(--cyan);
  transition: transform var(--dur) var(--ease);
}

.page-products .device-tab {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 12px;
  cursor: pointer;
  border-right: 2px solid var(--stroke);
  color: var(--muted);
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-products .device-tab:last-of-type {
  border-right: 0;
}

.page-products .tab-cn {
  font-size: var(--fs-16);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-products .tab-en {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
}

.page-products .device-tab:hover {
  color: var(--text);
  background: rgba(47, 224, 208, 0.06);
}

.page-products #dev-android:checked ~ .device-tabs .device-tab[for="dev-android"],
.page-products #dev-tablet:checked ~ .device-tabs .device-tab[for="dev-tablet"],
.page-products #dev-web:checked ~ .device-tabs .device-tab[for="dev-web"] {
  color: var(--cyan);
  background: rgba(47, 224, 208, 0.08);
}

.page-products #dev-tablet:checked ~ .device-tabs::after {
  transform: translateX(100%);
}

.page-products #dev-web:checked ~ .device-tabs::after {
  transform: translateX(200%);
}

.page-products .device-radio:focus-visible + .device-tabs + .device-panels {
  outline: none;
}

.page-products .device-radio:focus-visible ~ .device-tabs {
  outline: 2px dashed var(--cyan);
  outline-offset: 3px;
}

.page-products .device-panels {
  margin-top: clamp(20px, 3vw, 30px);
  min-width: 0;
}

.page-products .device-panel {
  display: none;
}

.page-products #dev-android:checked ~ .device-panels .device-panel[data-device="android"],
.page-products #dev-tablet:checked ~ .device-panels .device-panel[data-device="tablet"],
.page-products #dev-web:checked ~ .device-panels .device-panel[data-device="web"] {
  display: block;
  animation: prod-panel-in 200ms var(--ease) both;
}

@keyframes prod-panel-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-products .panel-lead {
  margin: 0 0 18px;
  max-width: 62ch;
  color: var(--prod-body);
  font-size: var(--fs-14);
  line-height: 1.85;
}

.page-products .ver-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .ver-card {
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 2px solid var(--stroke);
  border-left: 4px solid var(--cyan);
  background: var(--ink-2);
}

.page-products .ver-no {
  font-family: var(--font-mono);
  font-size: var(--fs-28);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.page-products .ver-body h3 {
  margin: 0 0 6px;
  font-size: var(--fs-16);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-products .ver-body p {
  margin: 0;
  max-width: 46ch;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--prod-body);
}

.page-products .ver-stamp {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--orange);
}

/* 要求对照表 */
.page-products .reqs {
  padding-block: clamp(36px, 6vw, 72px);
}

.page-products .table-scroll {
  overflow-x: auto;
  border: 2px solid var(--stroke);
  background: var(--ink-2);
  box-shadow: var(--shadow-hard);
}

.page-products .req-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: var(--fs-14);
}

.page-products .req-table caption {
  padding: 14px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--muted);
  border-bottom: 2px solid var(--stroke);
}

.page-products .req-table th,
.page-products .req-table td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--stroke);
  line-height: 1.7;
}

.page-products .req-table thead th {
  font-size: var(--fs-12);
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--cyan);
  background: rgba(47, 224, 208, 0.05);
}

.page-products .req-table tbody th {
  font-weight: 900;
  color: var(--text);
  white-space: nowrap;
}

.page-products .req-table tbody td {
  color: var(--prod-body);
}

.page-products .req-table tbody tr:last-child th,
.page-products .req-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .req-table .mono {
  font-family: var(--font-mono);
  color: var(--orange);
  white-space: nowrap;
}

.page-products .reqs-note {
  margin: 18px 0 0;
  max-width: 58ch;
  padding-left: 14px;
  border-left: 4px solid var(--orange);
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--prod-body);
}

/* 安装步骤 */
.page-products .install {
  padding-block: clamp(36px, 6vw, 72px);
  background: var(--ink-3);
}

.page-products .install__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-products .steps {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 16px;
  counter-reset: none;
}

.page-products .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px;
  border: 2px solid var(--stroke);
  background: var(--ink-2);
}

.page-products .step-no {
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  font-weight: 700;
  line-height: 1.2;
  color: var(--orange);
}

.page-products .step h3 {
  margin: 0 0 6px;
  font-size: var(--fs-16);
  font-weight: 900;
}

.page-products .step p {
  margin: 0;
  max-width: 46ch;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--prod-body);
}

.page-products .install__tip {
  margin: 0;
  padding: 12px 16px;
  background: var(--paper);
  color: #1b2434;
  border: 2px solid var(--stroke);
  font-family: var(--font-serif);
  font-size: var(--fs-14);
  line-height: 1.8;
}

/* 平板并列视图 */
.page-products .tablet {
  padding-block: clamp(36px, 6vw, 72px);
}

.page-products .tablet__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-products .tablet__copy > p {
  margin: 0 0 20px;
  max-width: 52ch;
  color: var(--prod-body);
  font-size: var(--fs-16);
  line-height: 1.85;
}

.page-products .flow {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .flow li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 14px;
  border: 2px solid var(--stroke);
  background: var(--ink-2);
  font-size: var(--fs-14);
  line-height: 1.7;
}

.page-products .flow-no {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 2px solid var(--cyan);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 700;
  color: var(--cyan);
}

.page-products .tablet__note {
  margin: 0;
  padding-left: 14px;
  border-left: 4px solid var(--cyan);
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--prod-body);
}

/* 功能模块折叠 */
.page-products .modules {
  padding-block: clamp(36px, 6vw, 72px);
  background: var(--ink-3);
}

.page-products .modules__grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

.page-products .mod-list {
  display: grid;
  gap: 12px;
}

.page-products .mod-item {
  border: 2px solid var(--stroke);
  background: var(--ink-2);
  transition: box-shadow var(--dur) var(--ease);
}

.page-products .mod-item[open] {
  box-shadow: var(--shadow-hard);
  border-color: var(--cyan);
}

.page-products .mod-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-16);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-products .mod-item summary::-webkit-details-marker {
  display: none;
}

.page-products .mod-item summary::before {
  content: "+";
  flex: 0 0 auto;
  width: 20px;
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-products .mod-item[open] summary::before {
  content: "\2212";
}

.page-products .mod-name {
  flex: 1 1 auto;
}

.page-products .mod-tag {
  flex: 0 0 auto;
  padding: 3px 8px;
  border: 1px solid var(--stroke);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 400;
  color: var(--muted);
}

.page-products .mod-body {
  padding: 0 16px 18px 48px;
}

.page-products .mod-body p {
  margin: 0;
  max-width: 50ch;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--prod-body);
}

.page-products .modules__media {
  margin: 0;
}

/* 更新节奏 */
.page-products .release {
  padding-block: clamp(36px, 6vw, 72px);
}

.page-products .release__media {
  margin: 0 0 clamp(22px, 3.5vw, 34px);
}

.page-products .release__grid {
  display: grid;
  gap: 16px;
}

.page-products .rel-card {
  padding: 18px;
  border: 2px solid var(--stroke);
  border-top: 4px solid var(--orange);
  background: var(--ink-2);
}

.page-products .rel-cadence {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-products .rel-card h3 {
  margin: 0 0 8px;
  font-size: var(--fs-20);
  font-weight: 900;
  letter-spacing: -0.015em;
}

.page-products .rel-card p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--prod-body);
}

/* 问题分流 */
.page-products .route {
  padding-block: clamp(36px, 6vw, 72px);
  background: var(--ink-3);
}

.page-products .route__list {
  list-style: none;
  margin: 0 0 clamp(24px, 4vw, 36px);
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-products .route-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 18px;
  border: 2px solid var(--stroke);
  background: var(--ink-2);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-products .route-card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-products .route-card h3 {
  margin: 0;
  font-size: var(--fs-16);
  font-weight: 900;
}

.page-products .route-card p {
  margin: 0;
  flex: 1 1 auto;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--prod-body);
}

.page-products .route__tail {
  margin: 0;
  max-width: 66ch;
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--prod-body);
}

/* 平板与桌面 */
@media (min-width: 720px) {
  .page-products .ver-card {
    grid-template-columns: 88px minmax(0, 1fr);
    align-items: start;
    gap: 6px 20px;
    padding: 18px 20px;
  }

  .page-products .ver-stamp {
    grid-column: 2;
  }

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

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

  .page-products .modules__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

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

@media (min-width: 960px) {
  .page-products .hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.88fr);
    align-items: center;
  }

  .page-products .install__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .page-products .steps {
    gap: 14px;
  }

  .page-products .device-tab {
    flex-direction: row;
    align-items: baseline;
    gap: 10px;
    padding: 16px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}