.page-features-advanced {
  background: var(--color-surface);
  color: var(--color-ink);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-features-advanced .breadcrumb {
  padding-top: calc(var(--space-8) * 2 + var(--space-6));
  padding-bottom: var(--space-3);
}

.page-features-advanced .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-features-advanced .breadcrumb li + li::before {
  content: "/";
  margin-right: var(--space-2);
  color: var(--color-ink-muted);
}

.page-features-advanced .breadcrumb a {
  color: var(--color-ink-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 200ms ease-out, border-color 200ms ease-out;
}

.page-features-advanced .breadcrumb a:hover,
.page-features-advanced .breadcrumb a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.page-features-advanced .breadcrumb [aria-current="page"] {
  color: var(--color-primary);
}

/* ---------- 定义句首屏 ---------- */
.page-features-advanced .int-hero {
  padding-bottom: var(--space-8);
}

.page-features-advanced .int-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin: 0 0 var(--space-4);
}

.page-features-advanced .int-hero__title {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: 1.16;
  letter-spacing: -0.02em;
  max-width: 15ch;
  margin: 0 0 var(--space-6);
}

.page-features-advanced .int-hero__def {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: 1.46;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  max-width: 34ch;
  margin: 0 0 var(--space-4);
}

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

@media (min-width: 900px) {
  .page-features-advanced .int-hero {
    padding-bottom: var(--section-y);
  }
  .page-features-advanced .int-hero__title {
    font-size: var(--text-3xl);
    max-width: 14ch;
  }
  .page-features-advanced .int-hero__def {
    font-size: var(--text-xl);
    max-width: 30ch;
    margin-bottom: var(--space-6);
  }
}

/* ---------- 满宽主图 ---------- */
.page-features-advanced .int-shot {
  margin-bottom: var(--section-y);
}

.page-features-advanced .int-shot .figure__media {
  background: var(--color-surface-deep);
}

.page-features-advanced .int-shot img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-features-advanced .int-shot .figure__caption {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
  max-width: var(--measure);
}

/* ---------- 通用区块头 ---------- */
.page-features-advanced .section-head {
  margin-bottom: var(--space-6);
}

.page-features-advanced .section-num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  line-height: 1;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.page-features-advanced .section-title {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-3);
}

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

@media (min-width: 900px) {
  .page-features-advanced .section-num {
    font-size: var(--text-2xl);
  }
  .page-features-advanced .section-title {
    font-size: var(--text-2xl);
  }
  .page-features-advanced .section-head {
    margin-bottom: var(--space-8);
  }
}

/* ---------- 01 适用场景 ---------- */
.page-features-advanced .sc-open__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-features-advanced .sc-card {
  padding: var(--space-6) 0 0;
}

.page-features-advanced .sc-card--alt {
  padding: var(--space-6) var(--space-4);
  background: var(--color-surface-alt);
}

.page-features-advanced .sc-card__tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
  margin: 0 0 var(--space-3);
}

.page-features-advanced .sc-card__title {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-4);
}

.page-features-advanced .sc-card__cond {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: 42ch;
  margin: 0 0 var(--space-3);
}

.page-features-advanced .sc-card__out {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
  max-width: 42ch;
  margin: 0;
  padding-left: var(--space-3);
  border-left: 2px solid var(--color-primary);
}

@media (min-width: 900px) {
  .page-features-advanced .sc-open__grid {
    grid-template-columns: 5fr 7fr;
    gap: var(--space-8);
    align-items: start;
  }
  .page-features-advanced .sc-card {
    padding-top: var(--space-4);
  }
  .page-features-advanced .sc-card--alt {
    padding: var(--space-8) var(--space-6);
    margin-top: var(--space-4);
  }
}

/* ---------- 02 为什么不够 ---------- */
.page-features-advanced .sc-gap {
  background: var(--color-surface-alt);
  padding-top: var(--section-y);
  padding-bottom: var(--section-y);
}

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

.page-features-advanced .sc-gap__figure {
  margin: 0;
}

.page-features-advanced .sc-gap__figure .figure__media {
  background: var(--color-surface-deep);
}

.page-features-advanced .sc-gap__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-features-advanced .sc-gap__figure .figure__caption {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

.page-features-advanced .sc-gap__text .lede {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: 1.45;
  color: var(--color-ink);
  max-width: 34ch;
  margin: 0 0 var(--space-4);
}

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

.page-features-advanced .sc-gap__text p:last-child {
  margin-bottom: 0;
  color: var(--color-ink);
}

.page-features-advanced .hl {
  background: var(--color-highlight);
  padding: 0.05em 0.2em;
}

@media (min-width: 900px) {
  .page-features-advanced .sc-gap__inner {
    grid-template-columns: 4fr 8fr;
    gap: var(--space-8);
    align-items: start;
  }
  .page-features-advanced .sc-gap__figure {
    position: sticky;
    top: calc(var(--space-8) + var(--space-6));
  }
}

/* ---------- 03 四步 ---------- */
.page-features-advanced .sc-steps__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

.page-features-advanced .sc-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.page-features-advanced .step {
  padding: var(--space-4) 0;
}

.page-features-advanced .step__trigger {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num label"
    "num goal"
    "num hint";
  gap: var(--space-1) var(--space-3);
  width: 100%;
  background: none;
  border: 0;
  border-radius: 0;
  padding: 0;
  text-align: left;
  cursor: pointer;
  color: var(--color-ink);
  font-family: var(--font-body);
  transition: color 200ms ease-out;
}

.page-features-advanced .step__num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  line-height: 1.2;
  color: var(--color-primary);
  transition: color 200ms ease-out;
}

.page-features-advanced .step__body {
  grid-area: label;
  display: contents;
}

.page-features-advanced .step__label {
  grid-area: label;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.page-features-advanced .step__goal {
  grid-area: goal;
  display: block;
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink-soft);
  max-width: 46ch;
}

.page-features-advanced .step__hint {
  grid-area: hint;
  display: block;
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
}

.page-features-advanced .step__trigger:hover .step__num,
.page-features-advanced .step__trigger:focus-visible .step__num {
  color: var(--color-accent);
}

.page-features-advanced .step__trigger:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 4px;
}

.page-features-advanced .step__panel {
  display: none;
  margin-top: var(--space-3);
  padding-left: var(--space-6);
  max-width: var(--measure);
}

.page-features-advanced .step__panel.is-open {
  display: block;
}

.page-features-advanced .step__panel p {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  margin: 0;
  padding-left: var(--space-3);
  border-left: 2px solid var(--color-accent);
}

.page-features-advanced .sc-steps__figure {
  margin: 0;
}

.page-features-advanced .sc-steps__figure .figure__media {
  background: var(--color-surface-deep);
}

.page-features-advanced .sc-steps__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-features-advanced .sc-steps__figure .figure__caption {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

@media (min-width: 900px) {
  .page-features-advanced .sc-steps__layout {
    grid-template-columns: 7fr 5fr;
    gap: var(--space-8);
    align-items: start;
  }
  .page-features-advanced .step {
    padding: var(--space-6) 0;
  }
  .page-features-advanced .step:first-child {
    padding-top: 0;
  }
  .page-features-advanced .step__trigger {
    grid-template-columns: auto 1fr auto;
    grid-template-areas:
      "num label hint"
      "num goal goal";
    align-items: baseline;
    column-gap: var(--space-4);
  }
  .page-features-advanced .step__num {
    font-size: var(--text-xl);
  }
  .page-features-advanced .step__label {
    font-size: var(--text-xl);
  }
  .page-features-advanced .step__hint {
    margin-top: 0;
    align-self: baseline;
    border-bottom: 1px solid var(--color-line);
    transition: color 200ms ease-out, border-color 200ms ease-out;
  }
  .page-features-advanced .step__trigger:hover .step__hint {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
  }
  .page-features-advanced .step__panel {
    padding-left: calc(var(--text-xl) * 1.4);
  }
}

/* ---------- 04 对照 ---------- */
.page-features-advanced .cmp {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.page-features-advanced .cmp__head {
  display: none;
}

.page-features-advanced .cmp__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

.page-features-advanced .cmp__cell {
  padding: var(--space-4);
  background: var(--color-surface);
  transition: background-color 200ms ease-out;
}

.page-features-advanced .cmp__cell--alt {
  background: var(--color-surface-alt);
}

.page-features-advanced .cmp__tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
  margin: 0 0 var(--space-2);
}

.page-features-advanced .cmp__line {
  font-size: var(--text-base);
  line-height: 1.72;
  color: var(--color-ink);
  margin: 0;
  max-width: 42ch;
}

.page-features-advanced .cmp__row:hover .cmp__cell--alt {
  background: var(--color-surface-deep);
}

.page-features-advanced .cmp__row:hover .cmp__cell:not(.cmp__cell--alt) {
  background: var(--color-surface-alt);
}

.page-features-advanced .cmp__row:hover .cmp__cell--alt .cmp__tag,
.page-features-advanced .cmp__row:hover .cmp__cell:not(.cmp__cell--alt) .cmp__tag {
  color: var(--color-primary);
}

@media (min-width: 900px) {
  .page-features-advanced .cmp {
    gap: var(--space-3);
  }
  .page-features-advanced .cmp__head {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: var(--space-2);
    padding: 0 var(--space-4) var(--space-2);
  }
  .page-features-advanced .cmp__head-cell {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: 0.2em;
    color: var(--color-primary);
  }
  .page-features-advanced .cmp__row {
    grid-template-columns: 5fr 7fr;
    gap: var(--space-2);
  }
  .page-features-advanced .cmp__cell {
    padding: var(--space-6);
  }
}

/* ---------- 05 出口 ---------- */
.page-features-advanced .sc-exit {
  background: var(--color-surface-alt);
  padding-top: var(--section-y);
  padding-bottom: var(--section-y);
}

.page-features-advanced .sc-exit__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

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

.page-features-advanced .sc-exit__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.page-features-advanced .sc-exit__links .link-more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--color-accent);
  align-self: flex-start;
  padding-bottom: 2px;
  transition: transform 200ms ease-out, color 200ms ease-out;
}

.page-features-advanced .sc-exit__links .link-more::after {
  content: "→";
  font-family: var(--font-mono);
  color: var(--color-accent);
  transition: transform 200ms ease-out;
}

.page-features-advanced .sc-exit__links .link-more:hover,
.page-features-advanced .sc-exit__links .link-more:focus-visible {
  color: var(--color-primary);
}

.page-features-advanced .sc-exit__links .link-more:hover::after,
.page-features-advanced .sc-exit__links .link-more:focus-visible::after {
  transform: translateX(4px);
}

.page-features-advanced .sc-exit__links .link-more:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 4px;
}

.page-features-advanced .sc-exit__note {
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-muted);
  max-width: var(--measure);
  margin: var(--space-3) 0 0;
}

@media (min-width: 900px) {
  .page-features-advanced .sc-exit__inner {
    grid-template-columns: 4fr 8fr;
    gap: var(--space-8);
    align-items: start;
  }
  .page-features-advanced .sc-exit__inner .section-head {
    margin-bottom: 0;
  }
  .page-features-advanced .sc-exit__lede {
    margin-top: var(--space-2);
  }
}