.page-products {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
}

/* 面包屑 */
.pd-breadcrumbs {
  max-width: var(--container);
  margin-inline: auto;
  padding: 24px var(--gutter) 0;
}

/* Hero 首屏 */
.pd-hero {
  position: relative;
  max-width: var(--container);
  margin-inline: auto;
  padding: clamp(28px, 5vw, 56px) var(--gutter) clamp(36px, 6vw, 64px);
  display: grid;
  gap: 28px;
}
.pd-hero__text {
  position: relative;
  z-index: 1;
}
.pd-hero__lead {
  margin-top: 16px;
  max-width: 54ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.7;
  color: var(--color-muted);
}
.pd-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.pd-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  margin: 28px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--border-light);
}
.pd-hero__stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0;
}
.pd-hero__stat dt {
  font-size: 13px;
  color: var(--color-muted);
}
.pd-hero__stat dd {
  margin: 0;
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-orange);
}
.pd-hero__visual {
  position: relative;
  z-index: 1;
}
.pd-hero__shot {
  background: var(--color-white);
}
.pd-hero__shot img {
  display: block;
  width: 100%;
  height: auto;
}
.pd-hero__badge {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  margin: -20px 0 0 16px;
  position: relative;
  z-index: 2;
  background: var(--color-navy);
  padding: 10px 16px;
}
.pd-hero__badge .display-number {
  font-size: 36px;
  line-height: 1;
  color: var(--color-orange);
}
.pd-hero__badge-label {
  font-size: 13px;
  color: var(--color-white);
}

/* 版本选择与下载 */
.pd-download {
  max-width: var(--container);
  margin-inline: auto;
  padding: 32px var(--gutter) 56px;
}
.pd-download__grid {
  display: grid;
  gap: 24px;
  margin-top: 32px;
}
.pd-download-card {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--border-light);
  padding: 28px 24px 24px;
  transition: border-color 0.2s ease;
}
.pd-download-card:hover {
  border-color: var(--color-navy);
}
.pd-download-card__rail {
  position: absolute;
  top: -1px;
  left: -1px;
  width: 64px;
  height: 4px;
  background: var(--color-orange);
}
.pd-download-card:nth-child(2) .pd-download-card__rail {
  width: 4px;
  height: 48px;
  background: var(--color-navy);
}
.pd-download-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}
.pd-download-card__header h3 {
  margin: 0;
  font-size: 20px;
}
.pd-download-card__ver {
  font-family: var(--font-num);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-orange);
  background: var(--color-orange-light);
  padding: 4px 10px;
}
.pd-download-card__size {
  margin: 0;
  font-family: var(--font-num);
  font-size: 18px;
  color: var(--color-muted);
}
.pd-download-card__qr {
  max-width: 220px;
  margin: 20px auto 12px;
  padding: 12px;
  border: 1px solid var(--border-light);
  background: var(--color-white);
}
.pd-download-card__qr img {
  display: block;
  width: 100%;
  height: auto;
}
.pd-download-card__scan {
  margin: 0;
  text-align: center;
  font-size: 14px;
  color: var(--color-muted);
}
.pd-download-card__req {
  list-style: none;
  margin: 20px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--border-light);
  display: grid;
  gap: 8px;
}
.pd-download-card__req li {
  display: flex;
  gap: 8px;
  font-size: 14px;
  line-height: 1.5;
}
.pd-download-card__req li::before {
  content: "▍";
  color: var(--color-orange);
  font-size: 12px;
  flex: 0 0 auto;
}
.pd-download__note {
  margin-top: 40px;
  background: var(--color-white);
  border-left: 4px solid var(--color-orange);
  padding: 20px 24px;
}
.pd-download__note p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
}
.pd-download__note a {
  color: var(--color-orange);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* 更新日志 */
.pd-changelog {
  max-width: 860px;
  margin-inline: auto;
  padding: 40px var(--gutter) 64px;
}
.pd-changelog__list {
  margin-top: 32px;
  border-top: 2px solid var(--color-navy);
}
.pd-changelog__item {
  background: var(--color-white);
  border-bottom: 1px solid var(--border-light);
}
.pd-changelog__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  padding: 20px;
  cursor: pointer;
  list-style: none;
}
.pd-changelog__summary::-webkit-details-marker {
  display: none;
}
.pd-changelog__summary:hover {
  background: var(--color-bg);
}
.pd-changelog__summary:focus-visible {
  outline: 2px solid var(--color-orange);
  outline-offset: -2px;
}
.pd-changelog__ver {
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-orange);
  min-width: 76px;
}
.pd-changelog__tag {
  font-size: 12px;
  line-height: 1.8;
  padding: 0 8px;
  background: var(--color-bg);
  border: 1px solid var(--border-light);
  color: var(--color-muted);
  white-space: nowrap;
}
.pd-changelog__tag--current {
  background: var(--color-orange);
  border-color: var(--color-orange);
  color: var(--color-white);
}
.pd-changelog__title {
  flex: 1 1 220px;
  font-weight: 600;
  font-size: 16px;
}
.pd-changelog__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-num);
  font-size: 22px;
  line-height: 1;
  color: var(--color-orange);
}
.pd-changelog__item[open] .pd-changelog__summary::after {
  content: "−";
}
.pd-changelog__detail {
  padding: 0 20px 20px;
}
.pd-changelog__detail ul {
  margin: 0;
  padding-left: 18px;
}
.pd-changelog__detail li {
  margin: 6px 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-muted);
}
.pd-changelog__more {
  margin-top: 28px;
  text-align: right;
}

/* 功能亮点 */
.pd-features {
  max-width: var(--container);
  margin-inline: auto;
  padding: 48px var(--gutter) 64px;
}
.pd-features__layout {
  display: grid;
  gap: 28px;
  margin-top: 32px;
}
.pd-features__grid {
  display: grid;
  gap: 16px;
}
.pd-feature-card {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--border-light);
  padding: 24px 20px 20px;
  overflow: hidden;
  transition: border-color 0.2s ease;
}
.pd-feature-card:hover {
  border-color: var(--color-orange);
}
.pd-feature-card__num {
  position: absolute;
  top: 8px;
  right: 14px;
  font-family: var(--font-num);
  font-size: 48px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-orange-light);
}
.pd-feature-card svg {
  display: block;
  width: 34px;
  height: 34px;
  color: var(--color-navy);
}
.pd-feature-card h3 {
  margin: 16px 0 8px;
  font-size: 20px;
}
.pd-feature-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--color-muted);
  max-width: 42ch;
}
.pd-features__demo {
  margin: 0;
}
.pd-features__demo img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border-light);
}
.pd-features__demo figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
}
.pd-features__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 32px;
  background: var(--color-navy);
  padding: 24px;
}
.pd-features__stat {
  text-align: center;
  padding: 8px 4px;
}
.pd-features__stat .metric-number {
  display: block;
  font-family: var(--font-num);
  font-size: 32px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-orange);
}
.pd-features__stat > span:last-child {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
}

/* 系统与安全 */
.pd-security {
  background:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(var(--color-navy), var(--color-navy-2));
  background-size: 32px 32px, 32px 32px, 100% 100%;
  padding: 56px 0 64px;
  color: var(--color-white);
}
.pd-security__inner {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.pd-security__head {
  max-width: 640px;
}
.pd-security .section-kicker {
  color: var(--color-orange);
}
.pd-security .section-title {
  color: var(--color-white);
}
.pd-security__lead {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.82);
}
.pd-security__body {
  display: grid;
  gap: 32px;
  margin-top: 32px;
  align-items: center;
}
.pd-security__shield {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 24px;
  display: flex;
  justify-content: center;
}
.pd-security__shield img {
  display: block;
  width: 100%;
  max-width: 240px;
  height: auto;
}
.pd-security__lists {
  display: grid;
  gap: 20px;
}
.pd-security__col {
  background: rgba(255, 255, 255, 0.06);
  border-left: 3px solid var(--color-orange);
  padding: 20px 20px 22px;
}
.pd-security__col h3 {
  margin: 0 0 12px;
  font-size: 18px;
  color: var(--color-white);
}
.pd-security__col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.pd-security__col li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.88);
}
.pd-security__col li::before {
  content: "▍";
  position: absolute;
  left: 0;
  color: var(--color-orange);
}
.pd-security__col a {
  color: var(--color-orange);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* 平板及以上 */
@media (min-width: 700px) {
  .pd-features__grid {
    grid-template-columns: 1fr 1fr;
  }
  .pd-security__lists {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}

@media (min-width: 860px) {
  .pd-download__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .pd-download-card:nth-child(2) {
    transform: translateY(36px);
  }
  .pd-download__note {
    margin-top: 56px;
  }
  .pd-security__body {
    grid-template-columns: minmax(0, 2fr) minmax(0, 5fr);
    gap: 48px;
  }
}

@media (min-width: 900px) {
  .pd-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: center;
    padding-top: 56px;
    padding-bottom: 96px;
  }
  .pd-hero::before {
    content: "";
    position: absolute;
    top: 24px;
    bottom: -24px;
    left: 56%;
    right: 0;
    background: var(--color-navy);
  }
  .pd-hero__visual {
    margin-top: 32px;
  }
  .pd-hero__shot img {
    box-shadow: 12px 12px 0 var(--color-orange);
  }
  .pd-hero__stat dd {
    font-size: 28px;
  }
}

@media (min-width: 960px) {
  .pd-features__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 32px;
  }
  .pd-features__stats {
    grid-template-columns: repeat(4, 1fr);
    margin-top: 40px;
  }
}