.page-features {
  --fx-dot: var(--space-1);
  --fx-panel-pad: var(--space-4);
}

/* ===== 面包屑 ===== */
.page-features .breadcrumb {
  padding-top: var(--space-2);
}

/* ===== 首屏 ===== */
.page-features .features-hero {
  padding-top: var(--space-6);
}

.page-features .features-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-features .features-hero__title {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 0.92;
  letter-spacing: -0.035em;
  color: var(--color-ink);
  margin: var(--space-3) 0 0;
}

.page-features .features-hero__lede {
  margin: var(--space-4) 0 0;
  max-width: 38ch;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-features .features-hero__panel {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--fx-panel-pad);
}

.page-features .features-panel__head {
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  color: var(--color-contrast-ink);
  opacity: 0.7;
}

.page-features .features-panel__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: var(--space-4);
}

.page-features .features-panel__cell {
  padding: var(--space-3) 0;
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-features .features-panel__cell:nth-child(-n + 2) {
  border-top: 0;
  padding-top: 0;
}

.page-features .features-panel__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--color-contrast-ink);
}

.page-features .features-panel__num--accent {
  color: var(--color-contrast-accent);
}

.page-features .features-panel__label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-contrast-ink);
}

.page-features .features-panel__note {
  display: block;
  margin-top: calc(var(--space-1) / 2);
  font-size: var(--text-xs);
  line-height: 1.55;
  color: var(--color-contrast-ink);
  opacity: 0.66;
}

@media (min-width: 900px) {
  .page-features .features-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-4);
    align-items: end;
  }

  .page-features .features-hero__panel {
    --fx-panel-pad: var(--space-6);
  }
}

/* ===== 通用标题 ===== */
.page-features .features-h2 {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  margin: var(--space-2) 0 0;
  max-width: 22ch;
}

/* ===== 功能矩阵 ===== */
.page-features .features-matrix__intro {
  max-width: 62ch;
}

.page-features .features-matrix__note {
  margin: var(--space-3) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-features .features-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  padding-block: var(--space-6);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-features .features-row:first-of-type {
  margin-top: var(--space-6);
}

.page-features .features-row__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  margin: var(--space-2) 0 0;
  max-width: 20ch;
}

.page-features .features-list {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-features .features-list li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-features .features-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: var(--space-1);
  height: var(--border-thin);
  background: var(--color-primary);
}

.page-features .features-row__status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin: var(--space-4) 0 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) dotted var(--color-line);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.02em;
}

.page-features .features-row__figure {
  margin: 0;
}

.page-features .features-row__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface-deep);
}

.page-features .features-row__figure figcaption {
  margin-top: var(--space-2);
  padding-left: var(--space-2);
  border-left: var(--border-thick) solid var(--color-primary);
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

@media (min-width: 960px) {
  .page-features .features-row {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: var(--space-6);
    align-items: start;
  }

  .page-features .features-row--flip {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-features .features-row--flip .features-row__text {
    order: 2;
  }

  .page-features .features-row--flip .features-row__figure {
    order: 1;
  }
}

/* ===== 状态与提醒 ===== */
.page-features .features-status__head {
  max-width: 62ch;
}

.page-features .features-status__lead {
  margin: var(--space-3) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-features .features-status .filter-bar {
  margin-top: var(--space-4);
}

.page-features .features-status__grid {
  margin-top: var(--space-4);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-features .features-status__item {
  padding: var(--space-3) 0 var(--space-4);
  border-bottom: var(--border-thin) dashed var(--color-line);
}

.page-features .features-status__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
}

.page-features .features-status__kicker .num {
  color: var(--color-primary);
  margin-right: var(--space-1);
}

.page-features .features-status__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: -0.01em;
  line-height: var(--leading-heading);
  color: var(--color-ink);
  margin: var(--space-1) 0 0;
}

.page-features .features-status__text {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-features .features-status .filter-empty {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

@media (min-width: 760px) {
  .page-features .features-status__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--space-6);
  }

  .page-features .features-status__item:nth-child(odd) {
    padding-right: var(--space-4);
  }
}

@media (min-width: 1100px) {
  .page-features .features-status__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-features .features-status__item:nth-child(odd) {
    padding-right: 0;
  }

  .page-features .features-status__item {
    padding-right: var(--space-4);
  }

  .page-features .features-status__item:nth-child(3n) {
    padding-right: 0;
  }
}

/* ===== 版本迭代 ===== */
.page-features .features-versions__head {
  max-width: 62ch;
}

.page-features .features-versions__lead {
  margin: var(--space-3) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-features .features-track {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

.page-features .features-track__item {
  position: relative;
  padding-left: var(--space-4);
  border-left: var(--border-thin) solid var(--color-line);
}

.page-features .features-track__dot {
  position: absolute;
  top: 0.55em;
  left: 0;
  margin-left: calc(var(--space-1) / -2);
  width: var(--fx-dot);
  height: var(--fx-dot);
  background: var(--color-primary);
}

.page-features .features-track__era {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.page-features .features-track__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: -0.01em;
  color: var(--color-ink);
  margin: var(--space-1) 0 0;
}

.page-features .features-track__text {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-features .features-versions__foot {
  margin: var(--space-6) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) dotted var(--color-line);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

@media (min-width: 900px) {
  .page-features .features-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: var(--space-6);
  }

  .page-features .features-track__item {
    border-left: 0;
    border-top: var(--border-thin) solid var(--color-line);
    padding-left: 0;
    padding-top: var(--space-4);
  }

  .page-features .features-track__dot {
    top: 0;
    left: 0;
    margin-left: 0;
    margin-top: calc(var(--space-1) / -2);
  }
}

/* ===== 设备同步 ===== */
.page-features .features-sync {
  background: var(--color-surface-alt);
  border-top: var(--border-thin) solid var(--color-line);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-features .features-sync__head {
  max-width: 62ch;
}

.page-features .features-sync__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.page-features .features-sync__lead {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-features .features-sync__cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

.page-features .features-sync__col {
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-3);
}

.page-features .features-sync__col-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: -0.01em;
  line-height: var(--leading-heading);
  color: var(--color-ink);
  margin: 0;
}

.page-features .features-sync__col-text {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

@media (min-width: 620px) {
  .page-features .features-sync__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-features .features-sync__body {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: var(--space-6);
    align-items: start;
  }
}

/* ===== 下一步 ===== */
.page-features .features-next__card {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--space-6) var(--space-4);
}

.page-features .features-next__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
}

.page-features .features-next__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
  margin: var(--space-2) 0 0;
  max-width: 16ch;
}

.page-features .features-next__text {
  margin: var(--space-3) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.78;
  max-width: 46ch;
}

.page-features .features-next__links {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-features .features-next__links-item {
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-features .features-next__link {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3) 0;
  text-decoration: none;
  color: var(--color-contrast-ink);
  transition: color 180ms ease-out, padding-left 180ms ease-out;
}

.page-features .features-next__link-name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: -0.01em;
  line-height: var(--leading-heading);
}

.page-features .features-next__link-desc {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.72;
}

.page-features .features-next__link:hover,
.page-features .features-next__link:focus-visible {
  color: var(--color-contrast-accent);
  padding-left: var(--space-2);
}

.page-features .features-next__link:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: var(--space-1);
}

@media (min-width: 900px) {
  .page-features .features-next__card {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: var(--space-6);
    align-items: start;
    padding: var(--space-8) var(--space-6);
  }

  .page-features .features-next__links {
    margin-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-features .features-next__link {
    transition: none;
  }
}
</PAGE_CSS>>>