/* ============ 下载中心 / page-products ============ */
.page-products {
  --dl-rule: 1px solid var(--c-line);
  --dl-sec-pad: 56px;
}

.page-products h1 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(30px, 5.6vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--c-text);
  margin: 12px 0 0;
  max-width: 14em;
}

.page-products h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--c-text);
  margin: 10px 0 16px;
  max-width: 22em;
}

.page-products h3 {
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.35;
  color: var(--c-text);
  margin: 0 0 6px;
}

.page-products p {
  color: var(--c-muted);
  font-size: 16px;
  line-height: 1.8;
  margin: 0 0 14px;
}

.page-products .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin: 0;
  line-height: 1.5;
}

.page-products .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}

.page-products a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--dl-hair, rgba(63, 224, 201, 0.24));
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products a:hover,
.page-products a:focus-visible {
  color: var(--c-cyan-soft);
  border-bottom-color: var(--c-orange);
  outline: none;
}

.page-products .dl-crumb {
  padding-top: 26px;
  padding-bottom: 6px;
}

.page-products .dl-crumb .breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

.page-products .dl-crumb .breadcrumb a {
  color: var(--c-muted);
  border-bottom-color: transparent;
}

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

.page-products .dl-crumb .breadcrumb span[aria-hidden] {
  margin: 0 8px;
  color: var(--c-line);
}

.page-products .dl-crumb .breadcrumb span:last-child {
  color: var(--c-orange);
}

/* ---------- 首屏拼贴 ---------- */
.page-products .dl-hero {
  padding: 24px 0 60px;
}

.page-products .dl-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-products .dl-lede {
  margin-top: 20px;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--c-muted);
}

.page-products .dl-facts {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 32px 0 0;
  padding: 0;
}

.page-products .dl-facts .stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 14px;
  border-left: 2px solid var(--c-orange);
}

.page-products .dl-facts .stat-value {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(28px, 6vw, 38px);
  line-height: 1;
  color: var(--c-text);
}

.page-products .dl-facts .unit {
  font-size: 0.42em;
  font-weight: 500;
  margin-left: 4px;
  color: var(--c-cyan);
}

.page-products .dl-facts .stat-label {
  display: block;
  font-size: 13px;
  line-height: 1.55;
  color: var(--c-muted);
}

.page-products .dl-spec {
  background: var(--c-archive);
  border: var(--dl-rule);
  border-left: 3px solid var(--c-cyan);
  padding: 22px 20px 16px;
}

.page-products .dl-spec .spec-head {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin: 0 0 14px;
}

.page-products .spec-list {
  margin: 0;
}

.page-products .spec-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--c-line);
}

.page-products .spec-row:last-child {
  border-bottom: 0;
}

.page-products .spec-key {
  font-size: 14px;
  color: var(--c-muted);
}

.page-products .spec-val {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 15px;
  color: var(--c-text);
  text-align: right;
}

/* ---------- 通用区块 ---------- */
.page-products .dl-sec {
  padding: var(--dl-sec-pad) 0;
  border-top: 1px solid var(--c-line);
}

/* ---------- 图片容器 ---------- */
.page-products .dl-figure {
  margin: 0;
  position: relative;
  background: linear-gradient(150deg, var(--c-archive), var(--c-abyss));
  border: var(--dl-rule);
  border-left: 3px solid var(--c-cyan);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-products .dl-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .dl-figure--tall img { aspect-ratio: 3 / 4; }
.page-products .dl-figure--wide img { aspect-ratio: 14 / 9; }
.page-products .dl-figure--square img { aspect-ratio: 1 / 1; }
.page-products .dl-figure--banner img { aspect-ratio: 2 / 1; }

.page-products .dl-figure figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 8px 12px;
  background: rgba(5, 19, 31, 0.84);
  border-top: 1px solid var(--c-line);
  border-right: 1px solid var(--c-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

/* ---------- 移动端能力 ---------- */
.page-products .dl-mobile {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-products .dl-mobile__copy > p {
  max-width: 58ch;
}

.page-products .dl-points {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: 26px 0 0;
  padding: 0;
  background: var(--c-line);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.page-products .dl-points > li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 4px;
  background: var(--c-abyss);
  transition: background-color var(--dur) var(--ease);
}

.page-products .dl-points > li:hover {
  background: rgba(63, 224, 201, 0.05);
}

.page-products .dl-points .pt-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-orange);
  padding-top: 4px;
}

.page-products .dl-points h3 {
  margin: 0 0 4px;
}

.page-products .dl-points p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
}

.page-products .dl-points--tight > li {
  padding: 13px 4px;
}

/* ---------- 桌面档案台 ---------- */
.page-products .dl-desktop {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-products .dl-desktop__copy > p {
  max-width: 58ch;
}

.page-products .filter-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 12px;
  padding: 0;
}

.page-products .chip {
  display: inline-block;
  padding: 7px 15px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-glass);
  font-size: 14px;
  line-height: 1.4;
  color: var(--c-muted);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-products .chip:hover,
.page-products .chip:focus-visible {
  border-color: var(--c-cyan);
  color: var(--c-text);
  background: rgba(63, 224, 201, 0.12);
}

.page-products .chip-note {
  font-size: 14px;
  color: var(--c-muted);
  margin: 0 0 24px;
}

.page-products .dl-exports {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--c-line);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.page-products .dl-exports li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 14px 4px;
  background: var(--c-abyss);
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-muted);
}

.page-products .dl-exports .mono {
  font-size: 12px;
  color: var(--c-cyan);
}

/* ---------- 版本演进条 ---------- */
.page-products .dl-versions {
  background:
    linear-gradient(165deg, rgba(36, 26, 92, 0.5) 0%, rgba(5, 19, 31, 0) 58%),
    var(--c-archive);
  position: relative;
}

.page-products .dl-versions::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--c-orange), rgba(255, 154, 60, 0));
}

.page-products .dl-versions__lede {
  max-width: 64ch;
  margin-bottom: 28px;
}

.page-products .dl-figure--banner {
  border-left-color: var(--c-orange);
  margin-bottom: 30px;
}

.page-products .ver-track {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--c-line);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.page-products .ver-node {
  background: var(--c-abyss);
}

.page-products .ver-details summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 16px 14px;
  border-top: 2px solid var(--c-orange);
  transition: background-color var(--dur) var(--ease);
}

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

.page-products .ver-details summary::marker {
  content: "";
}

.page-products .ver-details summary:hover,
.page-products .ver-details summary:focus-visible {
  background: rgba(255, 154, 60, 0.07);
  outline: none;
}

.page-products .ver-details summary::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-muted);
}

.page-products .ver-details[open] summary::after {
  content: "－";
  color: var(--c-cyan);
}

.page-products .ver-details[open] summary {
  border-top-color: var(--c-cyan);
  background: var(--c-glass);
}

.page-products .ver-no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 22px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--c-orange);
}

.page-products .ver-details[open] .ver-no {
  color: var(--c-cyan);
}

.page-products .ver-name {
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: 16px;
  color: var(--c-text);
}

.page-products .ver-body {
  padding: 0 14px 18px;
  border-top: 1px dashed var(--c-line);
}

.page-products .ver-body p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
}

/* ---------- 离线缓存 ---------- */
.page-products .dl-offline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-products .dl-offline__copy > p {
  max-width: 58ch;
}

/* ---------- 开放接口 ---------- */
.page-products .dl-api {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--c-line);
  background: linear-gradient(180deg, rgba(36, 26, 92, 0.55) 0%, rgba(5, 19, 31, 0.94) 78%);
}

.page-products .dl-api__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.18;
  pointer-events: none;
}

.page-products .dl-api__inner {
  position: relative;
  z-index: 1;
}

.page-products .dl-api__lede {
  max-width: 66ch;
  margin-bottom: 28px;
}

.page-products .api-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-products .api-card {
  background: var(--c-archive);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-indigo);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-products .api-card:hover {
  border-left-color: var(--c-cyan);
}

.page-products .api-card[open] {
  border-left-color: var(--c-orange);
  background: rgba(11, 38, 53, 0.96);
}

.page-products .api-card summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 16px;
}

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

.page-products .api-card summary::marker {
  content: "";
}

.page-products .api-card summary:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: -2px;
}

.page-products .api-idx {
  display: inline-block;
  align-self: flex-start;
  padding: 3px 8px;
  background: var(--c-indigo);
  color: var(--c-text);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.page-products .api-name {
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.3;
  color: var(--c-text);
}

.page-products .api-body {
  padding: 0 16px 18px;
  border-top: 1px solid var(--c-line);
  margin-top: 2px;
}

.page-products .api-body p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
}

/* ---------- 安装与更新 ---------- */
.page-products .dl-install__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 26px;
}

.page-products .dl-install__col {
  padding: 22px 20px 16px;
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-cyan);
  background: rgba(233, 246, 248, 0.05);
}

.page-products .dl-install__col ul {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .dl-install__col li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-products .dl-install__col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--c-orange);
}

/* ---------- 底部索引 ---------- */
.page-products .dl-index {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 4px;
  background: var(--c-line);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.page-products .dl-index a {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 20px 16px;
  background: var(--c-abyss);
  color: var(--c-text);
  font-size: 15px;
  line-height: 1.55;
  border-bottom: 0;
  border-left: 3px solid transparent;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-products .dl-index a:hover,
.page-products .dl-index a:focus-visible {
  border-left-color: var(--c-orange);
  background: rgba(233, 246, 248, 0.06);
  color: var(--c-text);
  outline: none;
}

.page-products .dl-index .mono {
  flex: none;
  font-size: 12px;
  font-weight: 700;
  color: var(--c-cyan);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-products .dl-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

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

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

@media (min-width: 880px) {
  .page-products {
    --dl-sec-pad: 72px;
  }

  .page-products .dl-hero {
    padding-bottom: 72px;
  }

  .page-products .dl-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 52px;
  }

  .page-products .dl-mobile {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 48px;
  }

  .page-products .dl-desktop {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 44px;
  }

  .page-products .dl-offline {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: center;
  }

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

  .page-products .dl-install__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 1060px) {
  .page-products .ver-track {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-products .api-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .dl-index {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products a,
  .page-products .chip,
  .page-products summary,
  .page-products .dl-points > li {
    transition: none;
  }
}

.page-products {
  --dl-hair: currentColor;
}