/* ===== 下载中心 /download/ ===== */

.page-products {
  --dl-rail-top: 96px;
  --dl-block-gap: 56px;
}

/* ---------- 首屏 ---------- */
.page-products .dl-hero {
  position: relative;
  overflow: hidden;
  padding-top: 22px;
  padding-bottom: 6px;
}

.page-products .dl-hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: 0;
  left: 0;
  height: 460px;
  background:
    radial-gradient(58% 70% at 20% 0%, rgba(53, 232, 198, .16), transparent 70%),
    radial-gradient(46% 62% at 84% 10%, rgba(154, 107, 255, .14), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-products .dl-hero > .container {
  position: relative;
  z-index: 1;
}

.page-products .dl-hero__eyebrow {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--teal);
}

.page-products .dl-hero h1 {
  margin: 12px 0 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-size: clamp(28px, 6.4vw, 50px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-products .dl-hero__lead {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.82;
  color: var(--mist);
}

.page-products .dl-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-products .dl-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .dl-hero__media {
  margin: 28px 0 0;
}

.page-products .dl-hero__media img,
.page-products .dl-block__media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-m);
  object-fit: cover;
}

/* ---------- 双轨骨架 ---------- */
.page-products .dl-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding-top: 36px;
  padding-bottom: 24px;
}

.page-products .dl-rail {
  min-width: 0;
}

.page-products .dl-rail__card {
  padding: 20px 18px 18px;
  border-radius: var(--radius-m);
}

.page-products .dl-rail__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .2em;
  color: var(--teal);
}

.page-products .dl-rail__ver {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  text-shadow: 0 0 26px rgba(53, 232, 198, .35);
}

.page-products .dl-rail__note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--mist);
}

.page-products .dl-params {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-products .dl-params li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.6;
}

.page-products .dl-params__k {
  flex: 0 0 auto;
  color: var(--mist);
}

.page-products .dl-params__v {
  font-family: var(--font-mono);
  color: var(--paper);
  text-align: right;
  word-break: break-word;
}

.page-products .dl-rail__cta {
  display: block;
  margin-top: 16px;
  text-align: center;
}

.page-products .dl-jump {
  display: grid;
  gap: 2px;
  margin: 18px 0 0;
  padding: 0;
}

.page-products .dl-jump a {
  display: block;
  padding: 8px 12px;
  border-left: 2px solid var(--line);
  color: var(--mist);
  font-size: 13px;
  line-height: 1.5;
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease, background-color .2s ease;
}

.page-products .dl-jump a:hover,
.page-products .dl-jump a:focus-visible {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(53, 232, 198, .07);
}

.page-products .dl-main {
  display: grid;
  gap: var(--dl-block-gap);
  min-width: 0;
}

.page-products .dl-block {
  min-width: 0;
}

.page-products .dl-block .chapter-head {
  margin-bottom: 20px;
}

.page-products .dl-block .chapter-head__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-products .dl-block .chapter-head__title {
  margin: 6px 0 0;
  font-family: var(--font-editorial);
  font-size: clamp(21px, 3vw, 27px);
  font-weight: 600;
  line-height: 1.32;
  color: var(--paper);
}

.page-products .dl-block .chapter-head__desc {
  margin: 8px 0 0;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-products .dl-block .chapter-head__desc a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .dl-block__media {
  margin: 22px 0 0;
}

/* ---------- 四步安装 ---------- */
.page-products .dl-steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .dl-step {
  position: relative;
  overflow: hidden;
  padding: 18px 18px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(155deg, rgba(14, 46, 40, .92) 0%, rgba(8, 32, 28, .78) 100%);
}

.page-products .dl-step::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--cyan), rgba(53, 232, 198, 0));
  opacity: .7;
}

.page-products .dl-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  opacity: .92;
}

.page-products .dl-step__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .dl-step__text {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-products .dl-step__check {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--teal);
}

/* ---------- 移动端与浏览器 ---------- */
.page-products .dl-routes {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .dl-route {
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(14, 46, 40, .58);
}

.page-products .dl-route__label {
  margin: 0;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .dl-route__desc {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-products .dl-route__meta {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--amber);
}

/* ---------- 版本时间线 ---------- */
.page-products .dl-timeline {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .dl-timeline__item {
  position: relative;
  margin-left: 5px;
  padding: 0 0 26px 22px;
  border-left: 1px solid var(--line-soft);
}

.page-products .dl-timeline__item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-products .dl-timeline__item::before {
  content: "";
  position: absolute;
  top: 5px;
  left: -5.5px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 232, 198, .08);
}

.page-products .dl-timeline__when {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--amber);
}

.page-products .dl-timeline__what {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--paper);
}

.page-products .dl-timeline__detail {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 问题速查 ---------- */
.page-products .dl-faq {
  display: grid;
  gap: 10px;
}

.page-products .dl-faq__item {
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: rgba(14, 46, 40, .52);
}

.page-products .dl-faq__q {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 0;
  cursor: pointer;
  list-style: none;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
}

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

.page-products .dl-faq__q::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(-45deg);
  transition: transform .2s ease;
}

.page-products .dl-faq__item[open] .dl-faq__q::before {
  transform: rotate(45deg);
}

.page-products .dl-faq__a {
  margin: 0 0 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.82;
  color: var(--mist);
}

/* ---------- 校验 ---------- */
.page-products .dl-hash {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 4px 0 0;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--violet);
  border-radius: var(--radius-s);
  background: var(--black);
}

.page-products .dl-hash__val {
  flex: 1 1 220px;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--cyan);
  word-break: break-all;
}

.page-products .dl-hash__hint {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .dl-notes {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .dl-note {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: rgba(8, 32, 28, .6);
}

.page-products .dl-note__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .dl-note__text {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--mist);
  word-break: break-word;
}

.page-products .dl-note__text a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 下一步 ---------- */
.page-products .dl-next {
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background:
    radial-gradient(88% 120% at 100% 0%, rgba(154, 107, 255, .2), transparent 66%),
    linear-gradient(160deg, rgba(14, 46, 40, .95), rgba(8, 32, 28, .86));
}

.page-products .dl-next__title {
  margin: 0;
  font-family: var(--font-editorial);
  font-size: clamp(19px, 2.6vw, 23px);
  font-weight: 600;
  line-height: 1.4;
  color: var(--paper);
}

.page-products .dl-next__text {
  margin: 10px 0 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .dl-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-products .dl-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .dl-notes .dl-note:first-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 760px) {
  .page-products .dl-routes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-products .dl-shell {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 46px;
    padding-top: 46px;
  }

  .page-products .dl-rail {
    position: sticky;
    top: var(--dl-rail-top);
    align-self: start;
  }

  .page-products .dl-hero__lead {
    font-size: 16.5px;
  }

  .page-products .dl-block__media img {
    max-height: 520px;
  }

  .page-products .dl-next {
    padding: 30px 28px;
  }
}

@media (min-width: 1200px) {
  .page-products .dl-shell {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .dl-jump a,
  .page-products .dl-faq__q::before {
    transition: none;
  }
}