.page-products {
  --dl-num: clamp(46px, 9vw, 72px);
  --dl-panel-bg: rgba(19, 28, 66, 0.78);
  --dl-hair: rgba(127, 243, 232, 0.18);
  position: relative;
  overflow-x: clip;
  padding-bottom: clamp(40px, 6vw, 88px);
}

.page-products::before {
  content: "";
  position: absolute;
  inset: -8% -24% auto -24%;
  height: 760px;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(58% 58% at 18% 24%, rgba(255, 61, 127, 0.24), transparent 72%),
    radial-gradient(52% 52% at 82% 30%, rgba(43, 231, 214, 0.18), transparent 72%);
}

.page-products > * {
  position: relative;
  z-index: 1;
}

.page-products .dl-h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--fog);
}

.page-products .dl-side-note {
  margin: 0;
  max-width: 30em;
  font-size: 15px;
  line-height: 1.7;
  color: var(--haze);
}

/* ---------- 首屏 ---------- */
.dl-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
}

.dl-hero__title {
  margin: 12px 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6.4vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--fog);
}

.dl-hero__title::after {
  content: "";
  display: block;
  width: 96px;
  height: 3px;
  margin-top: 22px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--rose));
}

.dl-hero__facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin: 26px 0 0;
  padding: 0;
}

.dl-hero__facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: rgba(19, 28, 66, 0.55);
}

.dl-hero__fact-v {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--cyan);
}

.dl-hero__media {
  margin: 0;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  transform: skewY(-1.4deg);
}

.dl-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(1.05) brightness(0.92);
}

.dl-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(10, 18, 48, 0.1) 20%, rgba(10, 18, 48, 0.72) 100%);
  pointer-events: none;
}

.dl-hero__media figcaption {
  position: absolute;
  left: 16px;
  bottom: 14px;
  z-index: 2;
}

/* ---------- 版本矩阵 ---------- */
.dl-tabs {
  position: relative;
  margin-top: clamp(20px, 3vw, 34px);
}

.dl-tabs__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip-path: inset(50%);
  opacity: 0;
}

.dl-tabs__bar {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding: 6px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: rgba(10, 18, 48, 0.66);
  backdrop-filter: blur(10px);
}

.dl-tabs__label {
  position: relative;
  z-index: 2;
  padding: 10px 4px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: clamp(10px, 2.6vw, 12px);
  letter-spacing: 0.04em;
  color: var(--haze);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: color 0.3s var(--ease);
}

.dl-tabs__slider {
  position: absolute;
  z-index: 1;
  top: 6px;
  left: 6px;
  width: calc((100% - 12px) / 4);
  height: calc(100% - 12px);
  border-radius: var(--radius-pill);
  background: linear-gradient(100deg, rgba(255, 61, 127, 0.94), rgba(255, 123, 166, 0.7));
  box-shadow: 0 8px 22px -12px rgba(255, 61, 127, 0.9);
  transition: transform 0.4s var(--ease);
}

.page-products #pf-win:checked ~ .dl-tabs__bar .dl-tabs__label:nth-of-type(1),
.page-products #pf-mac:checked ~ .dl-tabs__bar .dl-tabs__label:nth-of-type(2),
.page-products #pf-android:checked ~ .dl-tabs__bar .dl-tabs__label:nth-of-type(3),
.page-products #pf-ios:checked ~ .dl-tabs__bar .dl-tabs__label:nth-of-type(4) {
  color: var(--white);
}

.page-products #pf-win:checked ~ .dl-tabs__bar .dl-tabs__slider { transform: translateX(0); }
.page-products #pf-mac:checked ~ .dl-tabs__bar .dl-tabs__slider { transform: translateX(100%); }
.page-products #pf-android:checked ~ .dl-tabs__bar .dl-tabs__slider { transform: translateX(200%); }
.page-products #pf-ios:checked ~ .dl-tabs__bar .dl-tabs__slider { transform: translateX(300%); }

.page-products #pf-win:focus-visible ~ .dl-tabs__bar .dl-tabs__label:nth-of-type(1),
.page-products #pf-mac:focus-visible ~ .dl-tabs__bar .dl-tabs__label:nth-of-type(2),
.page-products #pf-android:focus-visible ~ .dl-tabs__bar .dl-tabs__label:nth-of-type(3),
.page-products #pf-ios:focus-visible ~ .dl-tabs__bar .dl-tabs__label:nth-of-type(4) {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.dl-tabs__viewport {
  overflow: hidden;
  margin-top: 20px;
  border-radius: var(--radius-lg);
}

.dl-tabs__track {
  display: flex;
  width: 400%;
  transition: transform 0.44s var(--ease);
}

.page-products #pf-win:checked ~ .dl-tabs__viewport .dl-tabs__track { transform: translateX(0); }
.page-products #pf-mac:checked ~ .dl-tabs__viewport .dl-tabs__track { transform: translateX(-25%); }
.page-products #pf-android:checked ~ .dl-tabs__viewport .dl-tabs__track { transform: translateX(-50%); }
.page-products #pf-ios:checked ~ .dl-tabs__viewport .dl-tabs__track { transform: translateX(-75%); }

.dl-panel {
  flex: 0 0 25%;
  width: 25%;
  padding-right: 2px;
}

.dl-panel__inner {
  display: grid;
  gap: 18px;
  padding: clamp(20px, 3vw, 34px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(27, 42, 107, 0.62), var(--dl-panel-bg));
  box-shadow: inset 0 1px 0 rgba(127, 243, 232, 0.16), var(--shadow-soft);
}

.dl-panel__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
}

.dl-panel__status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--haze);
}

.dl-panel__ver {
  display: block;
  width: 100%;
  font-family: var(--font-mono);
  font-size: var(--dl-num);
  line-height: 0.92;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.dl-panel__meta {
  display: grid;
  gap: 10px;
  margin: 0;
}

.dl-panel__meta > div {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 9px;
  border-bottom: 1px dashed var(--line-soft);
}

.dl-panel__meta dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--haze);
}

.dl-panel__meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
  color: var(--fog);
}

.dl-panel__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--haze);
}

.dl-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 版本核对 ---------- */
.dl-check__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

.dl-check__intro {
  margin: 16px 0 26px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--haze);
}

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

.dl-steps li {
  position: relative;
  padding-left: 58px;
}

.dl-steps li::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--gold);
  border: 1px solid rgba(245, 200, 107, 0.5);
  background: rgba(245, 200, 107, 0.08);
}

.dl-steps li::after {
  content: "";
  position: absolute;
  left: 19px;
  top: 44px;
  bottom: -20px;
  width: 1px;
  background: linear-gradient(180deg, rgba(245, 200, 107, 0.45), rgba(43, 231, 214, 0.12));
}

.dl-steps li:last-child::after {
  display: none;
}

.dl-steps h3 {
  margin: 6px 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--fog);
}

.dl-steps p {
  margin: 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.72;
  color: var(--haze);
}

.dl-check__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(19, 28, 66, 0.5);
}

.dl-check__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.dl-check__media figcaption {
  padding: 12px 16px 14px;
  border-top: 1px solid var(--line-soft);
}

/* ---------- 设置路径 ---------- */
.dl-settings__grid {
  display: grid;
  gap: clamp(24px, 3.5vw, 44px);
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(20px, 3vw, 32px);
}

.dl-settings__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  position: relative;
}

.dl-settings__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.dl-settings__media figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 16px;
  background: linear-gradient(180deg, transparent, rgba(10, 18, 48, 0.9));
}

.dl-settings__list {
  display: grid;
  gap: 0;
  border-left: 1px solid rgba(43, 231, 214, 0.24);
}

.dl-set {
  position: relative;
  padding: 16px 0 16px 20px;
}

.dl-set::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 26px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 1px solid var(--cyan);
  box-shadow: 0 0 10px rgba(43, 231, 214, 0.55);
}

.dl-set__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  cursor: pointer;
  list-style: none;
}

.dl-set__head::-webkit-details-marker {
  display: none;
}

.dl-set__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--rose);
}

.dl-set__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--fog);
}

.dl-set__head::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.dl-set[open] .dl-set__head::after {
  content: "–";
}

.dl-set__body {
  padding-top: 12px;
}

.dl-set__body p {
  margin: 0 0 8px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.72;
  color: var(--haze);
}

.dl-set__tip {
  color: var(--cyan) !important;
  font-size: 14px !important;
}

/* ---------- 更新日志 ---------- */
.dl-log__banner {
  margin: 0 0 clamp(24px, 3.5vw, 40px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

.dl-log__banner img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.dl-log__list {
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  border-left: 1px solid rgba(43, 231, 214, 0.22);
}

.dl-log__item {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 20px 0 20px 26px;
}

.dl-log__item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 28px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 14px rgba(43, 231, 214, 0.75);
}

.dl-log__tag {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.dl-log__body h3 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  color: var(--fog);
}

.dl-log__body p {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.72;
  color: var(--haze);
}

/* ---------- 版本选择 ---------- */
.dl-pick__grid {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(20px, 3vw, 30px);
}

.dl-pick__card {
  padding: clamp(20px, 3vw, 30px);
  border-radius: var(--radius-lg);
  background: rgba(19, 28, 66, 0.62);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.dl-pick__card--rose {
  border-top: 2px solid var(--rose);
  background: linear-gradient(165deg, rgba(255, 61, 127, 0.12), rgba(19, 28, 66, 0.7) 46%);
}

.dl-pick__card--cyan {
  border-top: 2px solid var(--cyan);
  background: linear-gradient(165deg, rgba(43, 231, 214, 0.1), rgba(19, 28, 66, 0.7) 46%);
}

.dl-pick__card h3 {
  margin: 14px 0 10px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--fog);
}

.dl-pick__card p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--haze);
}

.dl-pick__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.dl-pick__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--fog);
}

.dl-pick__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
}

/* ---------- 问答 ---------- */
.dl-faq__list {
  margin-top: clamp(20px, 3vw, 30px);
  max-width: 46rem;
}

.dl-faq__item {
  border-bottom: 1px solid var(--line-soft);
}

.dl-faq__item summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--fog);
  transition: color 0.25s var(--ease);
}

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

.dl-faq__item summary::before {
  content: "?";
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  margin-top: 2px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--rose-soft);
  border: 1px solid rgba(255, 123, 166, 0.5);
}

.dl-faq__item summary:hover {
  color: var(--cyan);
}

.dl-faq__item p {
  margin: 0 0 20px;
  padding-left: 38px;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--haze);
}

/* ---------- 下一步 ---------- */
.dl-next__panel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}

.dl-next__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.dl-next__panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(150deg, rgba(10, 18, 48, 0.86), rgba(10, 18, 48, 0.62));
}

.dl-next__content {
  position: relative;
  z-index: 2;
  padding: clamp(24px, 4vw, 48px);
}

.dl-next__lead {
  margin: 14px 0 24px;
  max-width: 32em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--fog);
}

.dl-next__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr);
}

.dl-next__links a {
  display: grid;
  gap: 4px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(19, 28, 66, 0.72);
  text-decoration: none;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.dl-next__links a:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 61, 127, 0.5);
  background: rgba(27, 42, 107, 0.8);
}

.dl-next__link-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--fog);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .dl-panel__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .dl-panel__top {
    grid-column: 1 / -1;
  }

  .dl-panel__meta {
    grid-column: 1 / 2;
  }

  .dl-panel__note {
    grid-column: 2 / 3;
    align-self: end;
  }

  .dl-panel__actions {
    grid-column: 1 / -1;
  }

  .dl-pick__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dl-next__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .dl-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .dl-check__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .dl-settings__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .dl-settings__media {
    position: sticky;
    top: 120px;
  }

  .dl-log__item {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 26px;
    align-items: start;
    padding-left: 32px;
  }

  .dl-log__tag {
    justify-content: flex-end;
    text-align: right;
  }

  .dl-log__tag .mg-mono {
    width: 100%;
    text-align: right;
  }
}

@media (max-width: 420px) {
  .dl-tabs__label {
    padding: 9px 2px;
    letter-spacing: 0;
  }

  .dl-panel__meta > div {
    grid-template-columns: minmax(0, 1fr);
    gap: 3px;
  }

  .dl-faq__item p {
    padding-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .dl-tabs__slider,
  .dl-tabs__track,
  .dl-next__links a {
    transition: none;
  }
}
<<<END>>>