.page-features-advanced .adv-hero {
  padding-top: var(--space-6);
  padding-bottom: var(--space-8);
}

.page-features-advanced .adv-eyebrow {
  margin-top: var(--space-6);
}

.page-features-advanced .adv-h1 {
  font-family: var(--font-heading);
  font-size: clamp(var(--text-2xl), 5.6vw, var(--text-3xl));
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: var(--space-3) 0 var(--space-4);
  max-width: 18ch;
}

.page-features-advanced .adv-lede {
  max-width: var(--measure);
  color: var(--color-ink-soft);
  margin: 0;
}

.page-features-advanced .adv-scale {
  list-style: none;
  margin: var(--space-8) 0 0;
  padding: var(--space-4) 0 0;
  border-top: var(--border-thin) solid var(--color-line);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
}

.page-features-advanced .adv-scale a {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  padding-bottom: var(--space-1);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
  transition: border-color 180ms ease;
}

.page-features-advanced .adv-scale a:hover {
  border-bottom-color: var(--color-primary);
}

.page-features-advanced .adv-scale a:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 3px;
}

.page-features-advanced .adv-scale-no {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
}

.page-features-advanced .adv-scale-tx {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  transition: color 180ms ease;
}

.page-features-advanced .adv-scale a:hover .adv-scale-tx {
  color: var(--color-ink);
}

.page-features-advanced .adv-figures {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  margin-top: var(--space-8);
}

@media (min-width: 640px) {
  .page-features-advanced .adv-figures {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-features-advanced .adv-figure {
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-3) var(--space-4);
  transition: border-color 200ms ease, background-color 200ms ease;
}

.page-features-advanced .adv-figure:hover {
  border-color: var(--color-accent);
  background: var(--color-highlight);
}

.page-features-advanced .adv-figure-num {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  line-height: 1;
  color: var(--color-accent);
  letter-spacing: 0.02em;
}

.page-features-advanced .adv-figure-unit {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  margin-left: 0.25em;
}

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

/* ---------- 时间线 ---------- */

.page-features-advanced .adv-track-lede {
  max-width: var(--measure);
  color: var(--color-ink-soft);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  margin: var(--space-3) 0 var(--space-8);
}

.page-features-advanced .tl {
  position: relative;
  margin-top: var(--space-6);
}

.page-features-advanced .tl::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(var(--space-2) / 2);
  width: var(--border-thin);
  background: var(--color-line);
}

.page-features-advanced .tl-item {
  position: relative;
  display: grid;
  grid-template-columns: var(--space-2) minmax(0, 1fr);
  column-gap: var(--space-3);
  align-items: start;
  padding-bottom: var(--space-8);
}

.page-features-advanced .tl-dot {
  grid-column: 1;
  grid-row: 1 / span 2;
  width: var(--space-2);
  height: var(--space-2);
  box-sizing: border-box;
  margin-top: var(--space-2);
  border-radius: 50%;
  border: var(--border-thin) solid var(--color-accent);
  background: var(--color-surface);
  z-index: 1;
  transition: background-color 200ms ease, border-color 200ms ease, transform 200ms ease;
}

.page-features-advanced .tl-no {
  grid-column: 2;
  grid-row: 1;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: var(--tracking-heading);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
  transition: color 200ms ease;
}

.page-features-advanced .tl-body {
  grid-column: 2;
  grid-row: 2;
  min-width: 0;
}

.page-features-advanced .tl-kicker {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
  margin: 0 0 var(--space-2);
}

.page-features-advanced .adv-node-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: 0 0 var(--space-3);
}

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

.page-features-advanced .tl-note {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  border-left: var(--border-thin) solid var(--color-line);
  padding-left: var(--space-3);
  margin-top: var(--space-4);
}

.page-features-advanced .adv-shot {
  margin: var(--space-4) 0 var(--space-2);
  overflow: hidden;
}

.page-features-advanced .adv-shot .media-frame__img,
.page-features-advanced .adv-outro-shot .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-features-advanced .adv-shot .media-frame__caption,
.page-features-advanced .adv-outro-shot .media-frame__caption {
  font-size: var(--text-xs);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
  margin-top: var(--space-2);
}

.page-features-advanced .tl-item--r .tl-no {
  color: var(--color-accent);
}

.page-features-advanced .tl-item--r .tl-dot {
  border-color: var(--color-primary);
}

.page-features-advanced .tl-item:hover .tl-no {
  color: var(--color-accent);
}

.page-features-advanced .tl-item:hover .tl-dot {
  background: var(--color-accent);
  transform: scale(1.18);
}

.page-features-advanced .tl-item--r:hover .tl-no {
  color: var(--color-primary);
}

.page-features-advanced .tl-item--r:hover .tl-dot {
  background: var(--color-primary);
}

@media (hover: hover) and (min-width: 900px) {
  .page-features-advanced .tl-item .tl-note {
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 200ms ease;
  }

  .page-features-advanced .tl-item:hover .tl-note,
  .page-features-advanced .tl-item:focus-within .tl-note {
    display: block;
    -webkit-line-clamp: unset;
    color: var(--color-ink);
  }
}

@media (min-width: 900px) {
  .page-features-advanced .tl::before {
    left: 50%;
  }

  .page-features-advanced .tl-item {
    grid-template-columns: minmax(0, 1fr) var(--space-8) minmax(0, 1fr);
    column-gap: 0;
  }

  .page-features-advanced .tl-dot {
    grid-column: 2;
    grid-row: 1;
    justify-self: center;
  }

  .page-features-advanced .tl-item--l .tl-no {
    grid-column: 1;
    grid-row: 1;
    text-align: right;
    margin-bottom: 0;
  }

  .page-features-advanced .tl-item--l .tl-body {
    grid-column: 3;
    grid-row: 1;
    padding-left: var(--space-3);
  }

  .page-features-advanced .tl-item--r .tl-no {
    grid-column: 3;
    grid-row: 1;
    margin-bottom: 0;
    padding-left: var(--space-3);
  }

  .page-features-advanced .tl-item--r .tl-body {
    grid-column: 1;
    grid-row: 1;
  }
}

/* ---------- 对照段（浅色） ---------- */

.page-features-advanced .adv-compare-title {
  color: var(--color-contrast-ink);
  max-width: 22ch;
  margin: var(--space-3) 0 var(--space-4);
}

.page-features-advanced .adv-compare-lede {
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  max-width: var(--measure);
  margin: 0 0 var(--space-8);
}

.page-features-advanced .adv-compare-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 860px) {
  .page-features-advanced .adv-compare-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-8);
  }
}

.page-features-advanced .adv-compare-col {
  border-top: var(--border-thick) solid var(--color-contrast-line);
  padding-top: var(--space-4);
}

.page-features-advanced .adv-compare-col--key {
  border-top-color: var(--color-contrast-accent);
}

.page-features-advanced .adv-compare-col h3 {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
  margin: 0 0 var(--space-4);
}

.page-features-advanced .adv-compare-col dl {
  margin: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3) var(--space-3);
}

.page-features-advanced .adv-compare-col dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
  padding-top: 0.35em;
}

.page-features-advanced .adv-compare-col dd {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-features-advanced .adv-compare-foot {
  margin: var(--space-8) 0 0;
  padding-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-contrast-line);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-features-advanced .section--light .link-underline {
  color: var(--color-contrast-accent);
}

/* ---------- 使用方式与出口 ---------- */

.page-features-advanced .adv-outro-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 900px) {
  .page-features-advanced .adv-outro-inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
  }
}

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

.page-features-advanced .adv-outro-side {
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: border-color 200ms ease;
}

.page-features-advanced .adv-outro-side:hover {
  border-color: var(--color-primary);
}

.page-features-advanced .adv-side-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: 0 0 var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
}

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

.page-features-advanced .adv-uses li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-features-advanced .adv-uses li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 0.35em;
  height: 0.35em;
  border-radius: 50%;
  background: var(--color-accent);
}

.page-features-advanced .adv-outro-shot {
  margin: var(--space-8) 0 0;
  overflow: hidden;
}

.page-features-advanced .adv-exit {
  margin-top: var(--space-8);
  padding: var(--space-6) var(--space-4);
  background: var(--color-primary-soft);
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-lg);
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 760px) {
  .page-features-advanced .adv-exit {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: var(--space-6);
  }
}

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

.page-features-advanced .adv-exit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
<<<END>>>