.page-products {
  --dl-panel: rgba(15, 42, 34, 0.6);
  --dl-grid-line: rgba(126, 140, 133, 0.24);
  --dl-accent: var(--cyan);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-products .dl-hero {
  position: relative;
  overflow: hidden;
  padding: 36px 0 44px;
}

.page-products .dl-hero::before {
  content: "";
  position: absolute;
  top: -24%;
  right: -16%;
  width: 68%;
  height: 152%;
  background: linear-gradient(152deg, rgba(20, 56, 45, 0.95), rgba(10, 15, 13, 0) 68%);
  clip-path: polygon(34% 0%, 100% 0%, 100% 100%, 0% 100%);
  pointer-events: none;
}

.page-products .dl-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.8fr);
  gap: 44px;
  align-items: center;
}

.page-products .dl-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-products .dl-hero__title {
  margin: 0 0 18px;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--warm);
}

.page-products .dl-hero__lede {
  margin: 0 0 28px;
  max-width: 44ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--warm);
}

.page-products .dl-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

.page-products .device {
  position: relative;
  padding: 10px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, var(--deep), var(--carbon) 72%);
  border-radius: 4px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}

.page-products .device__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 6px 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--sage);
}

.page-products .device__dot {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 8px rgba(198, 255, 61, 0.8);
}

.page-products .device__ver {
  margin-left: auto;
  color: var(--lime);
}

.page-products .device__screen {
  border: 1px solid var(--line);
  background: var(--carbon);
  overflow: hidden;
}

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

/* ---------- 通用章节头收紧 ---------- */
.page-products .version-strip .section__head,
.page-products .partitions .section__head,
.page-products .flow .section__head,
.page-products .setup .section__head,
.page-products .records .section__head {
  margin-bottom: 26px;
}

/* ---------- 版本速览 ---------- */
.page-products .spec-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .spec-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 22px 26px;
  background: var(--carbon);
}

.page-products .spec-card--lead {
  grid-column: span 2;
  background: linear-gradient(150deg, var(--deep), var(--carbon) 82%);
}

.page-products .spec-card__value {
  font-family: var(--font-mono);
  font-size: var(--fs-44);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--lime);
}

.page-products .spec-card--lead .spec-card__value {
  font-size: var(--fs-64);
}

.page-products .spec-card__unit {
  margin-left: 6px;
  font-size: 0.4em;
  letter-spacing: 0.04em;
  color: var(--sage);
}

.page-products .spec-card__label {
  font-size: var(--fs-14);
  font-weight: 500;
  color: var(--warm);
}

.page-products .spec-card__note {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.72;
  color: var(--sage);
}

/* ---------- 三分区面板 ---------- */
.page-products .partition-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .partition {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 0 0 26px;
  background: var(--carbon);
  min-width: 0;
}

.page-products .partition::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--dl-accent);
}

.page-products .partition--football {
  --dl-accent: var(--mint);
}

.page-products .partition--basketball {
  --dl-accent: var(--amber);
}

.page-products .partition--tennis {
  --dl-accent: var(--cyan);
}

.page-products .partition__head {
  padding: 24px 22px 16px;
}

.page-products .partition__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-20);
  line-height: 1.4;
  color: var(--warm);
}

.page-products .partition__figure {
  margin: 0 22px 20px;
  border: 1px solid var(--line);
  background: var(--deep);
  overflow: hidden;
}

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

.page-products .partition__list {
  list-style: none;
  margin: 0 22px;
  padding: 0;
}

.page-products .partition__list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--dl-grid-line);
  font-size: var(--fs-14);
}

.page-products .partition__key {
  color: var(--warm);
}

.page-products .partition__val {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--cyan);
  text-align: right;
}

.page-products .partition__note {
  margin: 18px 22px 0;
  font-size: var(--fs-14);
  line-height: 1.76;
  color: var(--sage);
}

/* ---------- 四步动线 ---------- */
.page-products .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .flow-step {
  counter-increment: step;
  position: relative;
  padding: 24px 26px 26px 92px;
  background: var(--carbon);
}

.page-products .flow-step::before {
  content: "0" counter(step);
  position: absolute;
  left: 26px;
  top: 26px;
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  line-height: 1;
  color: var(--lime);
}

.page-products .flow-step__title {
  margin: 0 0 8px;
  font-size: var(--fs-18);
  font-weight: 600;
  line-height: 1.5;
  color: var(--warm);
}

.page-products .flow-step__text {
  margin: 0;
  max-width: 68ch;
  font-size: var(--fs-14);
  line-height: 1.78;
  color: var(--sage);
}

/* ---------- 安装与更新 ---------- */
.page-products .setup-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.page-products .setup-card {
  padding: 26px 24px 22px;
  border: 1px solid var(--line);
  background: var(--dl-panel);
  min-width: 0;
}

.page-products .setup-card:first-child {
  border-left: 3px solid var(--lime);
}

.page-products .setup-card:last-child {
  border-left: 3px solid var(--cyan);
}

.page-products .setup-card__title {
  margin: 0 0 18px;
  font-size: var(--fs-18);
  font-weight: 600;
  color: var(--warm);
}

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

.page-products .setup-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 14px;
  font-size: var(--fs-14);
  line-height: 1.78;
  color: var(--warm);
}

.page-products .setup-list li:last-child {
  margin-bottom: 0;
}

.page-products .setup-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 版本档案 ---------- */
.page-products .records-figure {
  margin: 0 0 24px;
  border: 1px solid var(--line);
  background: var(--deep);
  overflow: hidden;
}

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

.page-products .records-list {
  border: 1px solid var(--line);
}

.page-products .ver {
  background: var(--carbon);
}

.page-products .ver + .ver {
  border-top: 1px solid var(--line);
}

.page-products .ver[open] {
  background: linear-gradient(180deg, var(--deep), var(--carbon));
}

.page-products .ver > summary {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 44px;
  padding: 15px 20px;
  list-style: none;
  cursor: pointer;
}

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

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

.page-products .ver__no {
  flex: none;
  min-width: 52px;
  font-family: var(--font-mono);
  font-size: var(--fs-16);
  color: var(--lime);
}

.page-products .ver__name {
  flex: 1;
  font-size: var(--fs-16);
  font-weight: 500;
  color: var(--warm);
  transition: color 0.2s var(--ease);
}

.page-products .ver > summary:hover .ver__name {
  color: var(--lime);
}

.page-products .ver__mark {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
}

.page-products .ver__mark::before,
.page-products .ver__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.25s var(--ease);
}

.page-products .ver__mark::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  transform: translateY(-50%);
}

.page-products .ver__mark::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
}

.page-products .ver[open] .ver__mark::after {
  transform: translateX(-50%) scaleY(0);
}

.page-products .ver__body {
  padding: 0 20px 20px 86px;
}

.page-products .ver__body p {
  margin: 0;
  max-width: 70ch;
  font-size: var(--fs-14);
  line-height: 1.78;
  color: var(--sage);
}

.page-products .records-foot {
  margin-top: 24px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  background: rgba(20, 56, 45, 0.4);
}

.page-products .records-foot p {
  margin: 0;
  max-width: 84ch;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--sage);
}

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

.page-products .records-foot a:hover,
.page-products .records-foot a:focus-visible {
  color: var(--lime);
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .page-products .dl-hero__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }

  .page-products .device {
    max-width: 360px;
    margin: 0 auto;
  }

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

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

@media (max-width: 700px) {
  .page-products .dl-hero {
    padding: 24px 0 32px;
  }

  .page-products .dl-hero::before {
    width: 100%;
    right: -40%;
    opacity: 0.6;
  }

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

  .page-products .spec-card--lead {
    grid-column: span 2;
  }

  .page-products .spec-card--lead .spec-card__value {
    font-size: var(--fs-44);
  }

  .page-products .flow-step {
    padding: 58px 20px 24px;
  }

  .page-products .flow-step::before {
    top: 22px;
    left: 20px;
  }

  .page-products .ver__body {
    padding-left: 20px;
  }

  .page-products .partition__head,
  .page-products .partition__list,
  .page-products .partition__note {
    padding-left: 0;
  }
}

@media (max-width: 460px) {
  .page-products .spec-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .spec-card--lead {
    grid-column: span 1;
  }

  .page-products .partition__figure,
  .page-products .partition__list,
  .page-products .partition__note {
    margin-left: 18px;
    margin-right: 18px;
  }

  .page-products .partition__head {
    padding-left: 18px;
    padding-right: 18px;
  }

  .page-products .ver > summary {
    gap: 10px;
  }

  .page-products .ver__no {
    min-width: 44px;
    font-size: var(--fs-14);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .ver__name,
  .page-products .ver__mark::before,
  .page-products .ver__mark::after {
    transition: none;
  }
}