.page-features {
  --feat-band-gap: var(--space-3);
  --feat-block-gap: var(--space-6);
  background: var(--color-surface);
  color: var(--color-ink);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-features .feat-hero {
  position: relative;
  padding: calc(var(--section-y) + var(--space-4)) 0 var(--space-6);
  background: var(--color-surface);
  overflow: hidden;
}

.page-features .feat-hero::after {
  content: "";
  position: absolute;
  top: 8%;
  right: -70px;
  width: 200px;
  height: 200px;
  border: var(--border-thick) solid var(--color-primary);
  border-radius: 50%;
  opacity: 0.35;
  pointer-events: none;
}

.page-features .feat-hero::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 110px;
  height: 10px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-accent) 0 10px,
    transparent 10px 20px
  );
  pointer-events: none;
}

.page-features .feat-hero__crumb {
  margin-bottom: var(--space-4);
}

.page-features .feat-hero__eyebrow {
  color: var(--color-primary);
}

.page-features .feat-hero__title {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 0.98;
  letter-spacing: var(--tracking-heading);
  margin: var(--space-2) 0 var(--space-3);
  text-wrap: balance;
  color: var(--color-ink);
}

.page-features .feat-hero__lede {
  max-width: 58ch;
  margin: 0;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* 首屏三条能力带 */

.page-features .feat-hero__bands {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--feat-band-gap);
  margin-top: var(--space-6);
  position: relative;
  z-index: 1;
}

.page-features .feat-band {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  border: var(--border-thick) solid var(--color-line);
  border-radius: var(--radius-lg) var(--radius-sm) var(--radius-lg) var(--radius-sm);
  background: var(--color-surface-alt);
  color: var(--color-ink);
  text-decoration: none;
  box-shadow: var(--shadow-2);
  transition: transform 240ms ease, background-color 240ms ease, color 240ms ease,
    border-color 240ms ease;
}

.page-features .feat-band:hover,
.page-features .feat-band:focus-visible {
  transform: translateY(-4px);
}

.page-features .feat-band__fig {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
  display: block;
}

.page-features .feat-band__unit {
  display: block;
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.75;
}

.page-features .feat-band__name {
  display: block;
  margin-top: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
}

.page-features .feat-band__desc {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  line-height: 1.55;
  opacity: 0.85;
}

.page-features .feat-band--a {
  background: var(--color-primary);
  color: var(--color-primary-ink);
  border-color: var(--color-primary);
}

.page-features .feat-band--a .feat-band__fig {
  color: var(--color-primary-ink);
}

.page-features .feat-band--b {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-color: var(--color-contrast-line);
}

.page-features .feat-band--b .feat-band__fig {
  color: var(--color-contrast-accent);
}

.page-features .feat-band--c {
  background: var(--color-surface-deep);
  color: var(--color-ink);
  border-color: var(--color-line);
}

.page-features .feat-band--c .feat-band__fig {
  color: var(--color-primary);
}

.page-features .feat-band--c:hover,
.page-features .feat-band--c:focus-visible {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-color: var(--color-contrast-line);
}

.page-features .feat-band--c:hover .feat-band__fig,
.page-features .feat-band--c:focus-visible .feat-band__fig {
  color: var(--color-contrast-accent);
}

/* ---------- 能力分组 ---------- */

.page-features .feat-group {
  position: relative;
  padding: var(--section-y) 0;
  background: var(--color-surface-alt);
}

.page-features .feat-group--roster {
  background: var(--color-surface);
}

.page-features .feat-group--dark {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-features .feat-group--dark::after {
  content: "";
  position: absolute;
  top: var(--space-6);
  right: var(--space-3);
  width: 84px;
  height: 84px;
  border: var(--border-thick) solid var(--color-contrast-accent);
  border-radius: var(--radius-sm);
  transform: rotate(14deg);
  opacity: 0.5;
  pointer-events: none;
}

.page-features .feat-group__head {
  max-width: 64ch;
  margin-bottom: var(--space-6);
}

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

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

.page-features .feat-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: var(--space-3);
}

.page-features .feat-group--dark .eyebrow {
  color: var(--color-contrast-accent);
}

.page-features .feat-group--dark .feat-group__title {
  color: var(--color-contrast-ink);
}

.page-features .feat-group--dark .feat-group__lede {
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

/* ---------- 能力长块 ---------- */

.page-features .feat-blocks {
  display: grid;
  gap: var(--feat-block-gap);
}

.page-features .cap-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-3);
  border: var(--border-thick) solid var(--color-line);
  border-radius: var(--radius-lg) var(--radius-sm) var(--radius-lg) var(--radius-sm);
  background: var(--color-surface);
  box-shadow: var(--shadow-2);
}

.page-features .feat-group--roster .cap-block {
  background: var(--color-surface-deep);
  border-color: var(--color-line);
}

.page-features .feat-group--dark .cap-block {
  background: color-mix(in srgb, var(--color-contrast-line) 30%, transparent);
  border-color: var(--color-contrast-line);
  box-shadow: none;
}

.page-features .cap-block__lead {
  display: grid;
  gap: var(--space-1);
}

.page-features .cap-block__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.22em;
  color: var(--color-ink-muted);
}

.page-features .cap-block__name {
  margin: var(--space-1) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-features .cap-block__fig {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  flex-wrap: wrap;
  margin: var(--space-1) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-4xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.page-features .cap-block__figunit {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  color: var(--color-ink-soft);
}

.page-features .cap-block__note {
  margin: var(--space-1) 0 0;
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-ink-muted);
  max-width: 34ch;
}

.page-features .cap-block__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.page-features .cap-spec h4 {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: var(--weight-heading);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-features .cap-spec p {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-features .cap-spec--off {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  border: var(--border-thin) solid var(--color-contrast-surface);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  transition: background-color 240ms ease, color 240ms ease, border-color 240ms ease;
}

.page-features .cap-spec--off h4 {
  color: var(--color-contrast-accent);
  transition: color 240ms ease;
}

.page-features .cap-spec--off p {
  color: var(--color-contrast-ink);
}

.page-features .cap-spec--off:hover,
.page-features .cap-spec--off:focus-within {
  background: var(--color-highlight);
  border-color: var(--color-highlight);
  color: var(--color-ink);
}

.page-features .cap-spec--off:hover h4,
.page-features .cap-spec--off:focus-within h4 {
  color: var(--color-accent);
}

.page-features .cap-spec--off:hover p,
.page-features .cap-spec--off:focus-within p {
  color: var(--color-ink);
}

.page-features .feat-group--dark .cap-block__name {
  color: var(--color-contrast-ink);
}

.page-features .feat-group--dark .cap-block__fig {
  color: var(--color-contrast-accent);
}

.page-features .feat-group--dark .cap-block__no,
.page-features .feat-group--dark .cap-block__figunit,
.page-features .feat-group--dark .cap-block__note,
.page-features .feat-group--dark .cap-spec h4 {
  color: var(--color-contrast-ink);
  opacity: 0.72;
}

.page-features .feat-group--dark .cap-spec p {
  color: var(--color-contrast-ink);
}

.page-features .feat-group--dark .cap-spec--off {
  background: color-mix(in srgb, var(--color-contrast-accent) 14%, transparent);
  border-color: var(--color-contrast-accent);
}

.page-features .feat-group--dark .cap-spec--off:hover,
.page-features .feat-group--dark .cap-spec--off:focus-within {
  background: var(--color-contrast-accent);
  border-color: var(--color-contrast-accent);
}

.page-features .feat-group--dark .cap-spec--off:hover h4,
.page-features .feat-group--dark .cap-spec--off:hover p,
.page-features .feat-group--dark .cap-spec--off:focus-within h4,
.page-features .feat-group--dark .cap-spec--off:focus-within p {
  color: var(--color-contrast-surface);
}

/* ---------- 图片 ---------- */

.page-features .media-figure {
  margin: var(--space-6) 0 0;
}

.page-features .media-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: var(--border-thick) solid var(--color-line);
  border-radius: var(--radius-md);
  object-fit: cover;
  filter: saturate(0.72) contrast(1.05);
}

.page-features .feat-group--dark .media-figure img {
  border-color: var(--color-contrast-line);
}

.page-features .media-figure__cap {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-ink-soft);
  max-width: 62ch;
}

.page-features .feat-group--dark .media-figure__cap {
  color: var(--color-contrast-ink);
  opacity: 0.72;
}

.page-features .feat-group__figure {
  max-width: 100%;
}

/* ---------- 交付标准 ---------- */

.page-features .feat-delivery {
  padding: var(--section-y) 0;
  background: var(--color-surface-alt);
}

.page-features .feat-delivery__scroll {
  overflow-x: auto;
  border: var(--border-thick) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-2);
}

.page-features .feat-table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: var(--text-sm);
  line-height: 1.5;
}

.page-features .feat-table__cap {
  caption-side: top;
  text-align: left;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  background: var(--color-surface-deep);
}

.page-features .feat-table th,
.page-features .feat-table td {
  padding: var(--space-2) var(--space-3);
  text-align: left;
  vertical-align: top;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-features .feat-table thead th {
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  background: var(--color-surface-deep);
  white-space: nowrap;
}

.page-features .feat-table tbody tr:nth-child(even) {
  background: var(--color-surface-alt);
}

.page-features .feat-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-features .feat-table td:first-child {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-features .feat-table td:nth-child(3) {
  font-family: var(--font-mono);
  color: var(--color-primary);
  white-space: nowrap;
}

.page-features .feat-delivery__figure {
  margin-top: var(--space-6);
}

.page-features .feat-delivery__note {
  margin: var(--space-4) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: 62ch;
}

.page-features .feat-delivery__note a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 出口 ---------- */

.page-features .feat-exit {
  padding: var(--section-y-lg) 0;
  background: var(--color-primary);
  color: var(--color-primary-ink);
  position: relative;
  overflow: hidden;
}

.page-features .feat-exit::after {
  content: "";
  position: absolute;
  bottom: -50px;
  right: -30px;
  width: 180px;
  height: 180px;
  border: var(--border-thick) solid var(--color-primary-ink);
  border-radius: 50%;
  opacity: 0.22;
  pointer-events: none;
}

.page-features .feat-exit__inner {
  position: relative;
  z-index: 1;
}

.page-features .feat-exit__eyebrow {
  color: var(--color-primary-ink);
  opacity: 0.82;
}

.page-features .feat-exit__title {
  margin: var(--space-2) 0 var(--space-3);
  max-width: 22ch;
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-primary-ink);
}

.page-features .feat-exit__text {
  margin: 0 0 var(--space-4);
  max-width: 60ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-primary-ink);
}

.page-features .feat-exit__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.page-features .feat-exit__link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border: var(--border-thick) solid var(--color-primary-ink);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-primary-ink);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  text-decoration: none;
  transition: background-color 220ms ease, color 220ms ease;
}

.page-features .feat-exit__link:hover,
.page-features .feat-exit__link:focus-visible {
  background: var(--color-primary-ink);
  color: var(--color-primary);
}

.page-features .feat-exit__link:focus-visible {
  outline: var(--border-thick) solid var(--color-contrast-accent);
  outline-offset: 2px;
}

/* ---------- 桌面 ---------- */

@media (min-width: 760px) {
  .page-features .feat-hero__bands {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-features .cap-block__body {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-features .cap-spec--off {
    grid-column: 1 / -1;
  }

  .page-features .feat-hero__lede {
    font-size: var(--text-xl);
  }
}

@media (min-width: 980px) {
  .page-features .cap-block {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-6);
    align-items: start;
    padding: var(--space-4) var(--space-4);
  }

  .page-features .feat-blocks > .cap-block:nth-child(odd) {
    margin-inline-end: var(--space-6);
  }

  .page-features .feat-blocks > .cap-block:nth-child(even) {
    margin-inline-start: var(--space-6);
    border-radius: var(--radius-sm) var(--radius-lg) var(--radius-sm) var(--radius-lg);
  }

  .page-features .feat-group__figure {
    margin-inline-start: auto;
    max-width: 72%;
  }

  .page-features .feat-group--roster .feat-group__figure {
    margin-inline-start: 0;
    margin-inline-end: auto;
    max-width: 60%;
  }

  .page-features .feat-delivery__figure {
    max-width: 100%;
  }
}

@media (min-width: 1120px) {
  .page-features .feat-group__head {
    max-width: 58ch;
  }

  .page-features .feat-group__figure {
    max-width: 64%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-features .feat-band,
  .page-features .cap-spec--off,
  .page-features .feat-exit__link {
    transition: none;
  }

  .page-features .feat-band:hover,
  .page-features .feat-band:focus-visible {
    transform: none;
  }
}
<<<END>>>