.page-products {
  --pd-gap: clamp(20px, 3vw, 36px);
  --pd-shadow: 0 18px 44px rgba(16, 21, 28, .08);
  --pd-rule: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  padding-bottom: clamp(56px, 8vw, 104px);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  padding-top: clamp(18px, 3vw, 30px);
}

.page-products .breadcrumb-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--graphite);
}

.page-products .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-products .breadcrumb-list a {
  color: var(--graphite);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-products .breadcrumb-list a:hover,
.page-products .breadcrumb-list a:focus-visible {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

.page-products .breadcrumb-list [aria-current="page"] {
  color: var(--ink);
}

/* ---------- 通用排版 ---------- */
.page-products .section-head {
  max-width: 66ch;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-products .section-title {
  margin: 8px 0 12px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.25;
  color: var(--ink);
}

.page-products .section-lead {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.75;
  color: var(--graphite);
}

.page-products .lead {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--graphite);
}

.page-products .pd-ver {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--blue-deep);
}

/* ---------- 媒体框 ---------- */
.page-products .media-frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: var(--pd-rule);
  background:
    repeating-linear-gradient(0deg, rgba(201, 210, 222, .38) 0 1px, transparent 1px 26px),
    repeating-linear-gradient(90deg, rgba(201, 210, 222, .38) 0 1px, transparent 1px 26px),
    linear-gradient(150deg, var(--blue-mist), #ffffff 66%);
}

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

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 60px) 0 clamp(34px, 6vw, 74px);
}

.page-products .pd-hero::before {
  content: "";
  position: absolute;
  top: -14%;
  right: -8%;
  width: min(66%, 740px);
  height: 128%;
  background: linear-gradient(155deg, var(--blue-mist) 0%, rgba(230, 240, 255, .08) 74%);
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-products .pd-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(38%, 320px);
  height: 6px;
  background: var(--orange);
  pointer-events: none;
}

.page-products .pd-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 44px);
  align-items: center;
}

.page-products .pd-hero-copy h1 {
  margin: 10px 0 16px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(28px, 5.4vw, 50px);
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-products .pd-hero-copy .pd-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-products .pd-hero-media {
  box-shadow: var(--pd-shadow);
}

.page-products .pd-quick {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: var(--pd-rule);
  border-left: var(--pd-rule);
  background: rgba(255, 255, 255, .7);
}

.page-products .pd-quick li {
  padding: 13px 12px 15px;
  border-right: var(--pd-rule);
  border-bottom: var(--pd-rule);
}

.page-products .pd-quick-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--blue-deep);
}

.page-products .pd-quick-label {
  display: block;
  margin-top: 5px;
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--graphite);
}

/* ---------- 版本通道 ---------- */
.page-products .pd-channels {
  padding-top: clamp(44px, 6vw, 84px);
}

.page-products .pd-channel-table {
  display: grid;
  grid-template-columns: 1fr;
  border: var(--pd-rule);
  background: #ffffff;
}

.page-products .pd-channel-col {
  padding: 24px 22px 28px;
  border-top: 4px solid var(--line);
  border-bottom: var(--pd-rule);
}

.page-products .pd-channel-col:last-child {
  border-bottom: 0;
}

.page-products .pd-channel-col--stable {
  border-top-color: var(--blue);
}

.page-products .pd-channel-col--beta {
  border-top-color: var(--orange);
}

.page-products .pd-channel-col--archive {
  border-top-color: var(--graphite);
}

.page-products .pd-channel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 16px;
  border-bottom: var(--pd-rule);
}

.page-products .pd-channel-head .tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-products .pd-channel-spec {
  margin: 0;
}

.page-products .pd-channel-spec > div {
  display: grid;
  grid-template-columns: 5.6em minmax(0, 1fr);
  gap: 12px;
  padding: 13px 0;
  border-bottom: var(--pd-rule);
}

.page-products .pd-channel-spec > div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .pd-channel-spec dt {
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--graphite);
}

.page-products .pd-channel-spec dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink);
}

.page-products .pd-channel-figure {
  margin-top: clamp(24px, 3.5vw, 40px);
}

/* ---------- 版本说明时间轴 ---------- */
.page-products .pd-timeline {
  padding-top: clamp(44px, 6vw, 84px);
}

.page-products .pd-timeline-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 40px);
}

.page-products .pd-timeline-figure {
  align-self: start;
}

.page-products .pd-timeline-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pd-timeline-item {
  position: relative;
  padding: 0 0 20px 24px;
  border-left: 1px solid var(--line);
}

.page-products .pd-timeline-item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-products .pd-node {
  position: absolute;
  left: -5px;
  top: 16px;
  width: 9px;
  height: 9px;
  background: var(--blue);
  border: 2px solid var(--paper);
  box-shadow: 0 0 0 1px var(--line);
}

.page-products .pd-entry {
  border: var(--pd-rule);
  background: #ffffff;
  transition: border-color 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-products .pd-entry[open] {
  border-color: var(--blue);
  box-shadow: 0 10px 26px rgba(10, 108, 255, .08);
}

.page-products .pd-entry > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--ink);
}

.page-products .pd-entry > summary::-webkit-details-marker {
  display: none;
}

.page-products .pd-entry > summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -3px;
}

.page-products .pd-entry-title {
  flex: 1 1 12em;
  font-weight: 500;
  line-height: 1.5;
}

.page-products .pd-entry > summary::after {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1;
  color: var(--orange);
  margin-left: auto;
}

.page-products .pd-entry[open] > summary::after {
  content: "－";
}

.page-products .pd-entry-body {
  padding: 0 16px 16px;
  border-top: 1px dashed var(--line);
  margin-top: 2px;
}

.page-products .pd-entry-body p {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--graphite);
}

/* ---------- 核心模块 ---------- */
.page-products .pd-modules {
  padding-top: clamp(44px, 6vw, 84px);
}

.page-products .pd-module {
  padding: clamp(22px, 3vw, 32px) 0;
  border-top: var(--pd-rule);
}

.page-products .pd-module:last-child {
  border-bottom: var(--pd-rule);
}

.page-products .pd-module-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 10px;
}

.page-products .pd-module-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-products .pd-module-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.35;
  color: var(--ink);
}

.page-products .pd-module-text {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--graphite);
}

.page-products .pd-module--media {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
  align-items: center;
}

.page-products .pd-module-media {
  max-width: 420px;
}

/* ---------- 设备适配 ---------- */
.page-products .pd-adapt {
  padding-top: clamp(44px, 6vw, 84px);
}

.page-products .pd-adapt-figure {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-products .pd-adapt-matrix {
  border: var(--pd-rule);
  background: #ffffff;
}

.page-products .pd-adapt-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  grid-template-areas:
    "plat state"
    "note note";
  align-items: center;
  gap: 6px 14px;
  padding: 15px 18px;
  border-bottom: var(--pd-rule);
}

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

.page-products .pd-adapt-plat {
  grid-area: plat;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--ink);
}

.page-products .pd-adapt-note {
  grid-area: note;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--graphite);
}

.page-products .pd-adapt-state {
  grid-area: state;
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--teal);
}

.page-products .pd-adapt-state::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--teal);
}

.page-products .pd-adapt-foot {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
}

/* ---------- 下载与安装 ---------- */
.page-products .pd-download {
  padding-top: clamp(44px, 6vw, 84px);
}

.page-products .pd-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: var(--pd-rule);
  border-left: var(--pd-rule);
  border-right: var(--pd-rule);
  background: #ffffff;
}

.page-products .pd-step {
  padding: 24px 22px 28px;
  border-bottom: var(--pd-rule);
}

.page-products .pd-step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--orange);
  margin-bottom: 12px;
}

.page-products .pd-step-title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.4;
  color: var(--ink);
}

.page-products .pd-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-products .pd-tips {
  margin-top: clamp(24px, 3.5vw, 36px);
  padding: 22px 22px 24px;
  border-left: 4px solid var(--orange);
  background: var(--orange-mist);
}

.page-products .pd-tips-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--orange-dark);
}

.page-products .pd-tips-list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 9px;
}

.page-products .pd-tips-list li {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 下一步 ---------- */
.page-products .pd-next {
  padding-top: clamp(40px, 5vw, 72px);
}

.page-products .pd-next-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-products .pd-next-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 24px 28px;
  border: var(--pd-rule);
  border-top: 3px solid var(--blue);
  background: #ffffff;
}

.page-products .pd-next-card--alt {
  border-top-color: var(--orange);
}

.page-products .pd-next-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.4;
  color: var(--ink);
}

.page-products .pd-next-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-products .pd-next-card .btn {
  align-self: flex-start;
  margin-top: 4px;
}

.page-products .pd-next-note {
  margin: clamp(20px, 3vw, 28px) 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-products .pd-next-note a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(10, 108, 255, .35);
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-products .pd-next-note a:hover,
.page-products .pd-next-note a:focus-visible {
  color: var(--blue-deep);
  border-bottom-color: var(--blue-deep);
}

/* ---------- 中等屏幕 ---------- */
@media (min-width: 620px) {
  .page-products .pd-quick {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-products .pd-step {
    border-bottom: 0;
    border-right: var(--pd-rule);
  }

  .page-products .pd-step:last-child {
    border-right: 0;
  }

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

  .page-products .pd-adapt-row {
    grid-template-columns: minmax(0, 9em) minmax(0, 1fr) auto;
    grid-template-areas: "plat note state";
    gap: 14px;
    padding: 16px 20px;
  }

  .page-products .pd-adapt-state {
    justify-self: end;
  }
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 880px) {
  .page-products .pd-hero-grid {
    grid-template-columns: 1.05fr .95fr;
    gap: clamp(36px, 5vw, 68px);
  }

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

  .page-products .pd-channel-col {
    border-bottom: 0;
    border-right: var(--pd-rule);
    padding: 28px 26px 34px;
  }

  .page-products .pd-channel-col:last-child {
    border-right: 0;
  }

  .page-products .pd-timeline-grid {
    grid-template-columns: .82fr 1.18fr;
    gap: clamp(40px, 5vw, 68px);
  }

  .page-products .pd-timeline-figure {
    position: sticky;
    top: 40px;
  }

  .page-products .pd-module--media {
    grid-template-columns: 1.2fr .8fr;
    gap: clamp(32px, 4vw, 64px);
  }

  .page-products .pd-module-head {
    margin-bottom: 12px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .pd-entry,
  .page-products .breadcrumb-list a,
  .page-products .pd-next-note a {
    transition: none;
  }
}
</main>