.page-products {
  --dl-line: rgba(68, 88, 107, .5);
  --dl-line-strong: rgba(68, 88, 107, .95);
  --dl-gap: clamp(22px, 3.4vw, 52px);
  --dl-pad: clamp(52px, 6.4vw, 104px);
  color: var(--paper);
}

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

.page-products figure {
  margin: 0;
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--font-display);
}

.page-products .dl-block {
  padding-block: var(--dl-pad);
}

.page-products .dl-block--deep {
  background: var(--ink-deep);
}

/* ---------- 区块标题 ---------- */
.page-products .dl-head {
  max-width: 64ch;
}

.page-products .dl-head h2 {
  margin: 12px 0 14px;
  font-weight: 300;
  font-size: clamp(26px, 3.3vw, 46px);
  line-height: 1.08;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-products .dl-head p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.72;
}

/* ---------- 首屏 ---------- */
.page-products .dl-hero {
  padding-block: clamp(20px, 2.5vw, 36px) var(--dl-pad);
}

.page-products .dl-hero__top {
  max-width: 66ch;
}

.page-products .dl-hero h1 {
  margin: 16px 0 20px;
  font-weight: 300;
  font-size: clamp(32px, 5vw, 66px);
  line-height: 1.05;
  letter-spacing: -.022em;
  color: var(--paper);
}

.page-products .dl-hero__intro {
  margin: 0;
  max-width: 60ch;
  color: var(--muted);
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.72;
}

.page-products .dl-hero__grid {
  display: grid;
  gap: var(--dl-gap);
  margin-top: clamp(30px, 4.2vw, 60px);
}

.page-products .dl-specs {
  margin: 0;
  border-top: 1px solid var(--dl-line-strong);
}

.page-products .dl-specs__row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  justify-content: space-between;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid var(--dl-line);
}

.page-products .dl-specs dt {
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--muted);
}

.page-products .dl-specs dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--paper);
}

.page-products .dl-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-products .dl-hero__media {
  position: relative;
}

/* ---------- 面板对照矩阵 ---------- */
.page-products .dl-matrix {
  margin-top: clamp(28px, 3.6vw, 52px);
  border-top: 1px solid var(--dl-line-strong);
}

.page-products .dl-matrix__head {
  display: none;
}

.page-products .dl-matrix__row {
  display: grid;
  gap: 10px;
  padding: 22px 0;
  border-bottom: 1px solid var(--dl-line);
  transition: background-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-products .dl-matrix__row:hover,
.page-products .dl-matrix__row:focus-within {
  background: var(--cyan-soft);
  box-shadow: inset 3px 0 0 var(--cyan);
}

.page-products .dl-matrix__title {
  display: block;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(19px, 1.7vw, 25px);
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-products .dl-matrix__tag {
  margin-top: 10px;
}

.page-products .dl-matrix__text {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.page-products .dl-matrix__fact {
  display: block;
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--paper);
}

.page-products .dl-matrix__fact::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-products .dl-matrix__figure {
  margin-top: clamp(28px, 3.6vw, 48px);
}

/* ---------- 设备分工 ---------- */
.page-products .dl-device {
  position: relative;
  margin-top: clamp(28px, 3.6vw, 48px);
}

.page-products .dl-device__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-products .dl-device__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(20px, 2.6vw, 34px);
}

.page-products .dl-device__tab {
  display: inline-block;
  padding: 10px 22px;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--muted);
  border: 1px solid var(--dl-line-strong);
  cursor: pointer;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .dl-device__tab:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-products #dl-device-desktop:checked ~ .dl-device__tabs [for="dl-device-desktop"],
.page-products #dl-device-mobile:checked ~ .dl-device__tabs [for="dl-device-mobile"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-products #dl-device-desktop:focus-visible ~ .dl-device__tabs [for="dl-device-desktop"],
.page-products #dl-device-mobile:focus-visible ~ .dl-device__tabs [for="dl-device-mobile"] {
  outline: 2px solid var(--paper);
  outline-offset: 2px;
}

.page-products .dl-device__panel {
  display: none;
  gap: var(--dl-gap);
}

.page-products #dl-device-desktop:checked ~ .dl-device__panels .dl-device__panel--desktop,
.page-products #dl-device-mobile:checked ~ .dl-device__panels .dl-device__panel--mobile {
  display: grid;
}

.page-products .dl-device__copy h3 {
  margin: 0 0 12px;
  font-weight: 400;
  font-size: clamp(19px, 1.8vw, 26px);
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-products .dl-device__copy p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.72;
}

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

.page-products .dl-device__facts li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid var(--dl-line);
  font-size: 14px;
  color: var(--paper);
}

.page-products .dl-device__facts b {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 500;
  color: var(--cyan);
}

/* ---------- 预览范围 ---------- */
.page-products .dl-access {
  display: grid;
  gap: var(--dl-gap);
  margin-top: clamp(28px, 3.6vw, 48px);
}

.page-products .dl-access__col {
  border-top: 2px solid var(--dl-line-strong);
  padding-top: 20px;
}

.page-products .dl-access__col--open {
  border-top-color: var(--cyan);
}

.page-products .dl-access__col--member {
  border-top-color: var(--orange);
}

.page-products .dl-access__title {
  margin: 0 0 14px;
  font-weight: 400;
  font-size: clamp(18px, 1.6vw, 23px);
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-products .dl-access__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .dl-access__list li {
  position: relative;
  padding: 10px 0 10px 18px;
  border-bottom: 1px solid var(--dl-line);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

.page-products .dl-access__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-products .dl-access__col--member .dl-access__list li::before {
  background: var(--orange);
}

/* ---------- 折叠说明 ---------- */
.page-products .dl-details {
  border-top: 1px solid var(--dl-line-strong);
}

.page-products .dl-details--access {
  margin-top: clamp(26px, 3.2vw, 44px);
}

.page-products .dl-details summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  font-size: 14px;
  font-weight: 500;
  color: var(--paper);
  transition: color var(--dur) var(--ease);
}

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

.page-products .dl-details summary:hover {
  color: var(--cyan);
}

.page-products .dl-details summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-products .dl-details[open] summary::after {
  content: "–";
}

.page-products .dl-details summary:focus-visible {
  outline: 2px solid var(--paper);
  outline-offset: 2px;
}

.page-products .dl-details__body {
  max-width: 70ch;
  padding: 0 0 22px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.page-products .dl-details__body p {
  margin: 0 0 12px;
}

.page-products .dl-details__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 更新与订阅 ---------- */
.page-products .dl-sub {
  display: grid;
  gap: var(--dl-gap);
  margin-top: clamp(28px, 3.6vw, 48px);
  align-items: start;
}

.page-products .dl-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .dl-steps li {
  display: flex;
  gap: 16px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--dl-line);
}

.page-products .dl-steps li:first-child {
  border-top: 1px solid var(--dl-line);
}

.page-products .dl-steps__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--orange);
}

.page-products .dl-steps__text {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

/* ---------- 常见问题 ---------- */
.page-products .dl-faq {
  margin-top: clamp(24px, 3.2vw, 40px);
  border-bottom: 1px solid var(--dl-line-strong);
}

.page-products .dl-faq .dl-details {
  border-top: 1px solid var(--dl-line);
}

.page-products .dl-faq .dl-details:first-child {
  border-top: 1px solid var(--dl-line-strong);
}

/* ---------- 收尾 ---------- */
.page-products .dl-endnote {
  display: grid;
  gap: 24px;
  padding-top: clamp(28px, 3.4vw, 48px);
  border-top: 1px solid var(--dl-line-strong);
}

.page-products .dl-endnote__title {
  margin: 0 0 10px;
  font-weight: 300;
  font-size: clamp(22px, 2.4vw, 34px);
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-products .dl-endnote__text {
  margin: 0;
  max-width: 52ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.page-products .dl-endnote__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 860px) {
  .page-products .dl-access {
    grid-template-columns: 1fr 1fr;
  }

  .page-products .dl-endnote {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }
}

@media (min-width: 880px) {
  .page-products .dl-matrix__head {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(0, 4fr) minmax(0, 4fr);
    gap: 0 40px;
    padding: 12px 0;
    border-bottom: 1px solid var(--dl-line-strong);
  }

  .page-products .dl-matrix__head .dl-matrix__cell {
    font-size: 11px;
    letter-spacing: .18em;
    text-transform: uppercase;
    font-weight: 500;
    color: var(--muted);
  }

  .page-products .dl-matrix__row {
    grid-template-columns: minmax(0, 3fr) minmax(0, 4fr) minmax(0, 4fr);
    gap: 0 40px;
    align-items: start;
    padding: 26px 0;
  }
}

@media (min-width: 900px) {
  .page-products .dl-device__panel {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
  }

  .page-products .dl-sub {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-products .dl-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-products .dl-hero__media {
    margin-top: -12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .dl-matrix__row,
  .page-products .dl-device__tab,
  .page-products .dl-details summary {
    transition: none;
  }
}